WO2013133124A1 - 清掃装置(cleaning apparatus) - Google Patents
清掃装置(cleaning apparatus) Download PDFInfo
- Publication number
- WO2013133124A1 WO2013133124A1 PCT/JP2013/055441 JP2013055441W WO2013133124A1 WO 2013133124 A1 WO2013133124 A1 WO 2013133124A1 JP 2013055441 W JP2013055441 W JP 2013055441W WO 2013133124 A1 WO2013133124 A1 WO 2013133124A1
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- WIPO (PCT)
- Prior art keywords
- cleaning
- transport vehicle
- air
- space
- ceiling
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/68—Arrangements for adjusting the position of spray heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
- B65G45/22—Cleaning devices comprising fluid applying means
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67051—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing using mainly spraying means, e.g. nozzles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67733—Overhead conveying
Definitions
- the present invention relates to a cleaning device that includes an air ejection device that ejects air to a ceiling transport vehicle that travels along a traveling rail disposed on a ceiling side in a clean room, and cleans the ceiling transport vehicle.
- the cleaning device as described above is designed to clean the ceiling transport vehicle where dust has accumulated and adhered as it travels in the clean room, and prevents dust generated during cleaning from scattering into the clean room. Therefore, a partition body that forms a shielded space that is shielded from the external space is provided, and the air ejection device cleans the ceiling transport vehicle in the shielded space formed by the partition body.
- a cleaning device there is one that is provided on a traveling route of a ceiling transport vehicle, and an air ejection device is configured to clean while traveling the ceiling transport vehicle. (For example, refer to Patent Document 1).
- Patent Document 1 With the configuration of Patent Document 1, the overhead transport vehicle travels along the travel path while the cleaning device performs the cleaning operation, so that dust generated by cleaning is scattered in the clean room. Can be prevented. For this purpose, it is necessary to configure the partition that forms the shielded space with a long length corresponding to the travel movement amount of the overhead traveling vehicle that travels during cleaning, and the configuration of the cleaning device is large. Become. Moreover, although high space use efficiency is requested
- the cleaning device includes: A cleaning device that includes an air ejection device that ejects air to a ceiling transport vehicle that travels along a traveling rail disposed on a ceiling side in a clean room, and that cleans the ceiling transport vehicle, A partition that forms a shielded space shielded from the external space is provided, The partition body is configured such that the ceiling transport vehicle can freely enter the shielded space by traveling, The air ejection device is configured to perform a cleaning operation on the ceiling transport vehicle in a travel stop state in the shielding space.
- an air ejection apparatus can clean an overhead conveyance vehicle by stopping in shielding space. it can. Since the overhead conveyance vehicle is stopped in the shielding space while being cleaned by the air jetting device, the shielding space only needs to be large enough to surround the ceiling conveyance vehicle. Therefore, the length of the partition body in the traveling direction is compact so that it corresponds to the length of the overhead traveling vehicle in the traveling direction, and installation in a clean room is advantageous.
- the cleaning apparatus of a ceiling conveyance vehicle with the advantageous installation in a clean room is implement
- the partition body is provided with a fan filter unit including a fan that sucks air in the shielded space and discharges the air outside the shielded space and a filter that purifies the discharged air.
- the partition is provided with an entrance through which the ceiling transport vehicle enters the shielded space and an exit through which the ceiling transport vehicle exits the shielded space,
- An entrance opening / closing device that can be switched between an open state for opening the entrance and a closed state for closing, an exit opening / closing device that can be switched between an open state for opening the exit and a closed state for closing, and the entry
- a control device that controls the opening and closing operation of the mouth opening and closing device and the exit opening and closing device and the cleaning operation of the air ejection device, and a dust concentration measuring device that measures the concentration of dust in the shielding space
- the control device operates the entrance opening / closing device and the exit opening / closing device so that the entrance opening / closing device and the exit opening / closing device are in the closed state in a state where the ceiling transport vehicle is stopped in the shielding space.
- the control device determines that the dust concentration in the shielding space has decreased to a set dust concentration based on measurement information of the dust concentration measurement device after starting the cleaning operation of the air ejection device, the air ejection In order to finish the cleaning operation of the device, it is preferable that the operation of the air ejection device is controlled.
- the cleaning operation of the air ejection device is started after the entrance opening / closing device and the exit opening / closing device are closed in a state where the ceiling transport vehicle is stopped in the shielding space.
- the dust generated by cleaning the overhead transport vehicle by the air jetting device is purified by the fan filter unit and discharged from the shielding space to the outside of the shielding space.
- the dust concentration in the shielding space gradually decreases.
- the control device determines that the dust concentration in the shielded space has decreased to the set dust concentration based on the detection information of the dust concentration detection device, the control device ends the cleaning operation of the air ejection device.
- the ceiling transport vehicle can be cleaned to the desired state.
- the operation of the air ejection device can be stopped.
- an air ejection apparatus can be operated reliably until a ceiling conveyance vehicle will be in a desired cleaning state, and also a ceiling conveyance vehicle is stopped and restrained in shielding space more than necessary for cleaning. Can be prevented.
- the ceiling transport vehicle that has been cleaned travels outward from the shielded space. You can leave.
- the entrance opening / closing device may be opened, and the entrance of the next ceiling transport vehicle may be waited in the open / close state for standby with the exit opening / closing device closed. Good.
- the cleaning device is provided at the end of the travel route, the entrance opening / closing device and the exit opening / closing device are also used.
- the air ejection device includes a plurality of nozzles that eject air in a state where the ejection target location can be changed.
- the ejection nozzle with which an air ejection apparatus is provided can change an ejection object location freely and more than one is provided, an air ejection device is ejected with respect to the several location of a ceiling conveyance vehicle.
- the cleaning operation can be performed while changing the location. Therefore, by arranging multiple ejection nozzles appropriately, changing the ejection target locations of these ejection nozzles, and ejecting air to the ceiling transport vehicle, it can handle all the locations that require cleaning in the ceiling transport vehicle Thus, even if the ejection nozzle is not provided separately, it is possible to appropriately clean a portion of the ceiling transport vehicle that needs to be cleaned.
- a lifting device for maintenance provided with a casing in which the overhead traveling vehicle traveling on the traveling rail can enter, and a lifting mechanism for detaching the overhead traveling vehicle to the floor side is provided in the housing,
- the shielded space is formed by the casing as the partition body, It is preferable that the air ejection device is provided in the casing.
- the ceiling transport vehicle can be cleaned within the housing of the lifting device for maintenance installed in the ceiling transport facility, the floor surface portion in the clean room occupied by the lifting device for maintenance The space area corresponding to can be used effectively.
- a traveling rail 2 for traveling on a ceiling transport vehicle is installed on the ceiling side along a set movement route set so as to pass through a plurality of article processing units 1.
- a ceiling transport vehicle 3 that travels along is provided in a state of being guided and supported by the travel rail 2.
- the overhead conveyance vehicle 3 conveys articles
- the traveling rail 2 is installed in a clean room, and the ceiling transport vehicle 3 transports a substrate storage container that can store a plurality of semiconductors as a transport object.
- the traveling unit 4 of the ceiling transport vehicle 3 is provided with a traveling wheel 5 a that rolls on the upper surface of the traveling rail 2 and a guide wheel 5 b that rolls on the side surface of the traveling rail 2.
- the traveling wheel 5a is rotationally driven by the traveling motor M1 so that the overhead traveling vehicle 3 travels along the set movement route while being guided by the traveling rail 2.
- the ceiling transport vehicle 3 is provided with an elevating unit 6 that holds an article and moves up and down with respect to the traveling unit 4.
- the elevating unit 6 is configured to move up and down by rotating and rotating a rotating drum (not shown) in the forward and reverse directions by an elevating motor M2 (see FIG. 6) and winding and unwinding the wire. ing.
- the elevating unit 6 includes a pair of gripping tools 7 that can grip a flange provided on the upper portion of the substrate storage container.
- the pair of gripping tools 7 are pivotably connected on the base end side so that the distal end side moves in the near and far direction.
- the pair of gripping tools 7 is configured to be switched by a gripping motor M3 to a gripping posture in which the tip portion is close to each other and grips the article or a release posture in which the tip portion is separated from each other to release the gripping of the article. Has been.
- an empty carrier 3 that does not support the substrate storage container corresponds to the article processing unit 1. Stop at the target stop position. Then, in this state, the elevating unit 6 is moved down to a height at which the pair of gripping tools 7 can grip the substrate storage container, and then the pair of gripping tools 7 are switched from the release posture to the gripping posture and placed on the mounting table. Grip the flange of the substrate storage container. Thereafter, the elevating unit 6 is moved up. Further, when the substrate storage container is delivered to the mounting table of the article processing unit 1, the overhead carrier 3 in an actual load state supporting the substrate storage container is stopped at a target stop position corresponding to the article processing unit 1. .
- the elevating unit 6 is moved downward until the substrate storage container is placed and supported on the mounting table, and then the pair of gripping tools 7 are switched from the gripping position to the release position to release the grip on the substrate storage container. Let Thereafter, the elevating unit 6 is moved up.
- the transport operation of the substrate storage container by the ceiling transport vehicle 3 is controlled by the ceiling transport vehicle controller H2 (see FIG. 6) based on the transport command instructed from the host controller H3.
- the ceiling transport vehicle controller H2 can be used to place the ceiling transport vehicle 3 on the ceiling based on a manual operation command from a manual operation command device D (see FIG. 6) configured by a terminal device that can be connected to the ceiling transport controller H2, for example.
- Maintenance operation control for running to the unloading point A of the transport vehicle is configured to be executable.
- an overhead conveyance vehicle extraction point A is defined on a movement route branched from the annular movement route in the set movement route, and a traveling rail lifting device 8 is installed at the ceiling conveyance vehicle extraction point A.
- the traveling rail lifting / lowering device 8 includes a traveling rail portion 2 a corresponding to the removal point A of the overhead traveling vehicle on the traveling rail 2 in a state in which the traveling rail 2 is supported on the traveling rail 2. It is provided so as to be movable up and down at a height for transporting the transport vehicle (see FIG. 2) connected to the travel rail body 2b and a height for taking out the transport vehicle lowered to the floor surface side.
- the traveling rail lifting / lowering device 8 functions as a lifting / lowering device for maintenance provided with a lifting / lowering mechanism for separating the ceiling transport vehicle 3 to the floor side.
- the traveling rail portion 2a is supported by an elevating body 9, and the elevating body 9 is constituted by a frame body in which a plurality of frame materials are assembled vertically and horizontally.
- the traveling rail lifting / lowering device 8 moves the traveling rail portion 2a up and down between the height for traveling the transport vehicle and the height for taking out the transported vehicle by moving the lifting body 9 up and down with the pantograph type lifting mechanism 10. It can be done.
- the traveling rail body 2 b is connected and supported to the ceiling via the support bracket 11, but the traveling rail portion 2 a corresponding to the removal position A on the traveling carriage 2 is a lifting body.
- 9 is connected and supported by a top bracket 9 via a support bracket 11.
- a fan filter unit 12 configured by integrally assembling an electric blower fan that rotates around the vertical axis and a plate-shaped dust filter that covers the blower fan.
- Two units are arranged side by side in the width direction of the vehicle body of the ceiling transport vehicle 3.
- the vehicle body width direction refers to a direction orthogonal to each of the traveling direction and the vertical direction of the overhead conveyance vehicle 3.
- These fan filter units 12 operate when cleaning the ceiling transport vehicle 3, purify the air in the cleaning space Z ⁇ b> 2 where the ceiling transport vehicle 3 is located, and discharge it to the external space Z ⁇ b> 1.
- the elevating body 9 and the elevating mechanism 10 are arranged inside a box-shaped housing 14 having a top panel 13T and a side panel 13S, which are framed by vertical columns and horizontal frames. Although illustration is omitted, an elevating command switch that is operated by an operator is provided on the outer surface of the housing 14, and the elevating mechanism 10 is extended and driven in the ascending direction based on the ascending command by the elevating command switch. As a result, the elevating body 9 is driven to move up, and the elevating mechanism 10 is driven to move downward by driving the elevating mechanism 10 to be shortened in the downward direction based on the lowering command.
- a conveyance vehicle entrance 15 is formed at the upper part of the side panel 13S disposed on the side facing the traveling rail main body 2b among the four side panels 13S. Further, a transport vehicle take-out port 16 is formed at a lower portion of the side panel 13S disposed on a surface facing the side panel 13S where the transport vehicle entrance 15 is formed.
- the housing 14 is provided with an electric shutter 17 that can freely open and close the transport vehicle entrance 15.
- the electric shutter 17 includes a shutter body 17a formed of a plate-like body having a plate pressure thinner than the gap formed between the traveling rail portion 2a and the traveling rail body 2b, and is vertically disposed in a vertical posture.
- the shutter body 17a is provided with a shutter opening / closing motor M4 for opening / closing.
- the electric shutter 17 is transported while the shutter body 17a is positioned below the transport vehicle entrance 15 to open the transport vehicle entrance 15 and at a height corresponding to the transport vehicle entrance 15. It can be switched to a closed state in which the vehicle entrance 15 is closed.
- the electric shutter 17 is closed to close the bottom of the lifting body 9 and the top panel 13T and the side panel 13S of the housing 14.
- a space is formed, and the ceiling transport vehicle 3 is cleaned in the space by an air ejection device C described later. That is, the cleaning space Z2 located above the housing 14 functions as a shielding space, and the bottom of the lifting body 9 including the fan filter unit 12, the top panel 13T and the side panel 13S of the housing 14 are externally connected.
- It functions as a partition body K that forms a shielded space shielded from the space Z1.
- the side panel 13S as the division body K is comprised so that the ceiling conveyance vehicle 3 can enter the shielding space by traveling movement.
- a sealing structure that seals between the outer peripheral portion of the lifting body 9 located at the height for transporting the vehicle and the housing 14 is appropriately used. preferable.
- the transport vehicle entrance 15 passes when the ceiling transport vehicle 3 to be cleaned and the ceiling transport vehicle 3 to be maintained enter the inside of the traveling rail lifting and lowering device 8, and after the cleaning is completed or the maintenance is completed. 3 also passes when leaving the outside of the traveling rail lifting device 8.
- the transport vehicle entrance 15 serves as an entrance and exit.
- the electric shutter 17 functions as an entrance opening / closing device and an exit opening / closing device.
- the traveling rail lifting / lowering device 8 is provided with an auxiliary rail 2c for moving on the ceiling transportation vehicle that can travel on the floor side and has the same height as the traveling rail portion 2a lowered to the height for taking out the transportation vehicle.
- a maintenance cart 18 is provided.
- the overhead transport vehicle 3 is moved from the traveling rail portion 2a to the auxiliary rail 2c for transfer from the transport rail so as to pass through the transport vehicle take-out port 16.
- the maintenance carriage 18 can be moved to a place where the maintenance work is performed in a state where the overhead carriage 3 is supported by the auxiliary rail 2c for the transfer of the overhead carriage 18 of the maintenance carriage 18 by moving. Yes.
- the lifting body 9 includes an air ejection device C that cleans the ceiling transport vehicle 3 by ejecting air to the ceiling transport vehicle 3 in the cleaning space Z ⁇ b> 2.
- the air ejection device C is configured to include a plurality of nozzles 20 that are capable of ejecting air in a state in which the locations to be ejected can be changed.
- the air ejection device C performs a cleaning operation on the ceiling conveyance vehicle 3 in the traveling stop state in the cleaning space Z2.
- the plurality of nozzles 20 are arranged in the axial direction (the same as the front-rear direction of the ceiling transport vehicle 3) with respect to each of the four rotary operation shafts 19 arranged in parallel extending along the front-rear direction of the ceiling transport vehicle 3. It is supported to be integrally rotatable in a distributed manner.
- the four rotary operation shafts 19 are rotatably supported by the elevating body 9 in a state of being spaced apart in the vertical direction and the vehicle body width direction.
- a nozzle rotating motor M ⁇ b> 5 that rotationally drives the rotary operation shaft 19 via a speed reducer 21 is attached to a position where the end of each rotary operation shaft 19 is located in the lifting body 9.
- Cleaning air is supplied to the plurality of nozzles 20 from a cleaning air supply device (not shown) provided on the ground side via a deformable supply hose.
- the nozzle 20 can receive supply of cleaning air from the cleaning air supply device, and can move up and down integrally with the lifting body 9.
- An ejection switching valve 22 (see FIG. 5) that switches the plurality of nozzles 20 between the ejection state and the ejection stop state is provided at a midpoint of the cleaning air supply path from the cleaning air supply device to the plurality of nozzles 20. .
- the two upper rotation operation shafts 19 ⁇ / b> U arranged on the upper side are higher than the traveling portion 4 of the ceiling conveyance vehicle 3 to be cleaned and are close to the traveling portion 4. Attach to height.
- the proximity means a state in which the separation distance is equal to or less than the height of the traveling rail 2.
- two lower rotary operation shafts 19 ⁇ / b> D arranged on the lower side are the same height or set distance as the height of the lifting / lowering unit 6 of the ceiling transport vehicle 3 to be cleaned. It is mounted at an offset height.
- the plurality of nozzles 20 are arranged so that the tip portions thereof are close to the ceiling transport vehicle 3 to be cleaned in order to obtain a sufficient cleaning effect.
- the tip portion is arranged in such a size and position that it does not interfere with the ceiling transport vehicle 3 even if it is rotated.
- a well-known particle counter 23 serving as a dust concentration measuring device for measuring the concentration of dust in the cleaning space Z2 when the air ejection device C is operating is provided inside the housing 14.
- the particle counter 23 is provided at a height closer to the upper side of the elevating body 9 when it is positioned at the height for transporting the transport vehicle and closer to the lower side than the ceiling transport vehicle 3.
- concentration of the dust contained in the air can be measured in the middle of the flow path
- the output signal of the particle counter 23 is input to the cleaning device controller H1 (see FIG. 5).
- a cleaning device controller H ⁇ b> 1 is provided as a control device that controls the cleaning operation of the air ejection device C and the opening / closing operation of the electric shutter 17.
- the cleaning device controller H1 has the ceiling transport vehicle 3 to be cleaned in the stopped state in the cleaning space Z2 based on the detection information of the transport vehicle detection sensor 24 that can detect the stopped ceiling transport vehicle 3 in the cleaning space Z2. It is configured so as to be able to discriminate whether or not.
- the conveyance vehicle detection sensor 24 is configured to be able to detect the ceiling conveyance vehicle 3 positioned at the cleaning location, that is, the ceiling conveyance vehicle 3 supported by the traveling rail portion 2a positioned at the conveyance vehicle traveling height.
- the cleaning device controller H1 closes the electric shutter 17 in a state in which the ceiling transport vehicle 3 is stopped in the cleaning space Z2 based on the cleaning command. Therefore, the operation of the shutter opening / closing motor M4 is controlled. Then, the cleaning device controller H1 starts the cleaning operation of the air ejection device C, and then determines that the dust concentration in the cleaning space Z2 has decreased to the set dust concentration based on the measurement information of the particle counter 23. In order to finish the cleaning operation of the device C, the operation of the air ejection device C is controlled.
- step # 2 When the cleaning device controller H1 determines in step # 1 that a cleaning command has been issued, the cleaning device controller H1 proceeds to step # 2, and the ceiling to be cleaned is placed in the cleaning space Z2 based on the detection information of the transport vehicle detection sensor 24. It is determined whether or not the transport vehicle 3 is stopped. If the ceiling transport vehicle 3 is not stopped at the cleaning location, the process waits until the ceiling transport vehicle 3 arrives at the cleaning location. When the ceiling transport vehicle 3 is stopped at the cleaning location, the process proceeds to step # 3, where the drive of the shutter opening / closing motor M4 is controlled to switch the electric shutter 17 to the closed state. In step # 4, the cleaning operation by the air ejection device C is started.
- the operation of the fan filter unit 12 is started, the ejection switching valve 22 is switched to the ejection state, the cleaning air is ejected from the nozzle 20, and the nozzle rotation motor M5 is driven in the forward and reverse directions to thereby generate a plurality of nozzles. 20 is rotated integrally with the rotary operation shaft 19, and the tip of the nozzle 20 is repeatedly reciprocally swung within a set angle range.
- the cleaning device controller H1 monitors the dust concentration in the cleaning space Z2 in step # 5 after starting the cleaning operation by the air ejection device C. As the cleaning operation continues, dust accumulated in the ceiling transport vehicle 3 is scattered in the cleaning space Z2, and the dust concentration in the cleaning space Z2 temporarily rises. , Will gradually decline.
- the cleaning device controller H1 proceeds to step # 6 and performs the cleaning operation by the air ejection device C. finish. That is, the operation of the fan filter unit 12 is stopped, the ejection switching valve 22 is switched to the ejection stopped state, and the ejection of cleaning air from the nozzle 20 is stopped. Thereafter, the driving of the nozzle rotation motor M5 is controlled so that the plurality of nozzles 20 are in the standby position, that is, the rotation phase of the rotation operation shaft 19 is the initial phase. In step # 7, the driving of the shutter opening / closing motor M4 is controlled to switch the electric shutter 17 to the open state.
- the manual operation command device D reserves the host controller H3 as the ceiling transport vehicle 3 for article transport processing. (Selection) Send information that it is possible.
- Selection Send information that it is possible.
- a lowering command is instructed by an unillustrated lift command switch provided on the outer surface of the housing 14, and the lifting body 9 is taken out of the transport vehicle.
- the overhead carrier 3 may be moved to a location where maintenance work is performed by lowering the height to the required height and moving to the maintenance carriage 18.
- the division body in the cleaning apparatus of a ceiling conveyance vehicle illustrated what provided the opening which used both the entrance and exit
- the division body was provided with the entrance and exit separately, respectively. It may be.
- a partitioning body is provided in the middle of the traveling route so that the traveling route of the ceiling transport vehicle penetrates the partitioning body, and the entrance and exit ports are provided at both front and rear ends in the traveling direction of the partitioning body.
- a cleaning device may be used.
- the cleaning apparatus was illustrated in what was provided in the partition standing on the floor surface, the partition may be suspended and supported from the ceiling.
- the air blowing device is exemplified in the housing of the lifting device for maintenance. Instead, the air blowing device is provided in a cleaning-only device. May be.
- the overhead conveyance vehicle controller H2 can be configured to manage the cumulative travel amount of each of the plurality of overhead transport vehicles, and the cumulative travel amount is set to the set travel amount set for the cleaning time determination. You may control driving
- the management device sets a plurality of or a single travel amount measurement point on the travel route, and the travel amount You may comprise so that a cleaning time may be discriminate
- a management device that manages the traveling of the ceiling transportation vehicle by providing a passage detection device configured with an optical sensor or the like at the travel amount measurement location is configured to detect each ceiling transportation vehicle based on the detection information of the passage detection device. What is necessary is just to manage the frequency
- the concentration of dust in the shielding space is based on the measurement information of the dust concentration measurement device.
- the one that terminates the cleaning operation of the air ejection device when it is determined that the dust concentration has decreased to the set dust concentration but the cleaning operation of the air ejection device occurs after a set time elapses after starting the cleaning operation of the air ejection device It may be the one that terminates.
- the air ejection device is exemplified such that the ejection target location can be changed by rotating the nozzle, but instead of or in addition to this, the nozzle is moved up and down or left and right. Thus, it may be possible to change the location to be ejected. Moreover, the nozzle may not be able to change the ejection target location.
- the air ejection device is exemplified as one that can be moved up and down integrally with the lifting body that is lifted and lowered by the lifting mechanism. And may be fixed. Also in this case, the nozzle may be able to change the ejection target location, or may not be able to change the ejection target location.
- Air ejection device K Partition body Z1 External space Z2 Shielding space H1 Control device 2 Traveling rail 3 Ceiling transport vehicle 10 Lifting mechanism 12 Fan filter unit 14 Housing 15 Entrance / exit exit 17 Entrance entrance opening / closing device, exit exit opening / closing device 20 Nozzle 23 dust concentration measuring device
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Abstract
Description
このような清掃装置に関する一例として、天井搬送車の走行経路上に設けられ、空気噴出装置が、天井搬送車を走行させながら清掃するように構成されたものがある。(例えば、特許文献1参照。)。
クリーンルーム内の天井側に配設された走行レールに沿って走行する天井搬送車に対して空気を噴出する空気噴出装置を備え、前記天井搬送車を清掃する清掃装置であって、
外部空間から遮蔽された遮蔽空間を形成する区画体が設けられ、
前記区画体は、前記天井搬送車が走行移動により前記遮蔽空間に進入自在に構成され、
前記空気噴出装置は、前記遮蔽空間において走行停止状態の前記天井搬送車に対して清掃作動するように構成されている。
このように、上記構成によると、クリーンルームでの設置が有利な天井搬送車の清掃装置を実現する。
前記遮蔽空間内の空気を吸入して前記遮蔽空間外に排出するファンと当該排出する空気を浄化するフィルタとを備えるファンフィルタユニットが、前記区画体に備えられていることが好ましい。
このように、ファンとフィルタとがユニット化されたファンフィルタユニットを区画体に備える簡素な構成により、天井搬送車の清掃に伴って発生する塵埃が遮蔽空間の外部に飛散することを防止できる。したがって、クリーンルームの汚染防止を図りつつ構成の複雑化を抑制することができる。
前記区画体に、前記天井搬送車が前記遮蔽空間に進入する進入口と前記天井搬送車が前記遮蔽空間から退出する退出口とが設けられ、
前記進入口を開放する開状態と閉鎖する閉状態とに切り換え自在な進入口開閉装置と、前記退出口を開放する開状態と閉鎖する閉状態とに切り換え自在な退出口開閉装置と、前記進入口開閉装置及び前記退出口開閉装置の開閉作動並びに前記空気噴出装置の清掃作動を制御する制御装置と、前記遮蔽空間における塵埃の濃度を計測する塵埃濃度計測装置とが設けられ、
前記制御装置は、前記天井搬送車が前記遮蔽空間に停止した状態で前記進入口開閉装置及び前記退出口開閉装置を前記閉状態とするべく、前記進入口開閉装置及び前記退出口開閉装置の作動を制御した後、前記空気噴出装置の清掃作動を開始させるべく、前記空気噴出装置の作動を制御するとともに、
前記制御装置は、前記空気噴出装置の清掃作動を開始させた後、前記塵埃濃度計測装置の計測情報に基づいて、前記遮蔽空間における塵埃の濃度が設定塵埃濃度まで低下したと判別すると前記空気噴出装置の清掃作動を終了させるべく、前記空気噴出装置の作動を制御するように構成されていることが好ましい。
制御装置は、塵埃濃度検出装置の検出情報に基づいて、遮蔽空間における塵埃の濃度が設定塵埃濃度まで低下したと判別すると空気噴出装置の清掃作動を終了させる。よって、天井搬送車に堆積していた塵埃が所望の状態まで清掃できた場合の塵埃濃度を、予め設定塵埃濃度として設定しておくことで、天井搬送車を所望の状態まで清掃できた段階で空気噴出装置の作動を停止させることができる。
上記の構成によると、天井搬送車が所望の清掃状態になるまで確実に空気噴出装置を作動させることができ、しかも、清掃のために必要以上に天井搬送車を遮蔽空間に停止させて拘束することを防止できる。
なお、空気噴出装置の作動を停止させた後、又は、同時若しくは停止させる直前に退出口開閉装置を開状態とすることで、清掃が完了した天井搬送車は遮蔽空間から外部に走行移動して退出することができる。なお、天井搬送車が退出した後は、進入口開閉装置を開状態にし、退出口開閉装置を閉状態にした待機用開閉状態にて、次の天井搬送車の進入を待機するようにしてもよい。ちなみに、走行経路の端部に清掃装置を設ける場合は、進入口開閉装置及び退出口開閉装置は兼用されることになる。
前記空気噴出装置が、空気を噴出するノズルを、噴出対象箇所を変更自在な状態で、複数備えて構成されていることが好ましい。
前記走行レール上を走行する前記天井搬送車が進入自在な筐体を備えて、前記天井搬送車を床側に離脱させる昇降機構を前記筐体内に備えたメンテナンス用の昇降装置が設けられ、
前記遮蔽空間が、前記区画体としての前記筐体により形成され、
前記空気噴出装置が前記筐体内に設けられていることが好ましい。
図1に示すように、複数の物品処理部1を経由するように設定された設定移動経路に沿って、天井搬送車走行用の走行レール2が天井側に設置されており、設定移動経路に沿って走行する天井搬送車3が走行レール2に案内支持された状態で設けられている。
そして、天井搬送車3は、図外の物品搬入箇所から物品処理部1、物品処理部1から他の物品処理部1、及び、物品処理部1から図外の物品搬出箇所に物品を搬送するように構成されている。上記走行レール2は、クリーンルーム内に設置されており、天井搬送車3は、半導体を複数枚収納自在な基板収納容器を搬送対象物として搬送する。
また、物品処理部1の載置台に基板収納容器を受け渡す場合は、基板収納容器を支持している実荷状態の天井搬送車3を当該物品処理部1に対応する目標停止位置に停止させる。そして、その状態で、基板収納容器が載置台に載置支持されるまで昇降部6を下降移動させた後、一対の把持具7を把持姿勢から解除姿勢に切り換えて基板収納容器に対する把持を解除させる。その後、昇降部6を上昇移動させる。
そして、図2に示すように、走行レール昇降装置8には、走行レール2における天井搬送車抜き取り箇所Aに対応する走行レール部分2aが、天井搬送車3を支持した状態で前記走行レール2における走行レール本体2bと連なる搬送車走行用高さ(図2参照)と床面側に下降させた搬送車取出し用高さとに昇降移動自在に設けられている。これにより、天井搬送車抜き取り箇所Aまで走行した天井搬送車3をメンテナンスのために床側に取り出すことができるようになっている。つまり、走行レール昇降装置8は、天井搬送車3を床側に離脱させる昇降機構を備えたメンテナンス用の昇降装置として機能する。
以上、発明者によってなされた発明を発明の実施形態に基づき具体的に説明したが、本発明は上記実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。以下、本発明の別実施形態を例示する。
K 区画体
Z1 外部空間
Z2 遮蔽空間
H1 制御装置
2 走行レール
3 天井搬送車
10 昇降機構
12 ファンフィルタユニット
14 筐体
15 進入口、退出口
17 進入口開閉装置、退出口開閉装置
20 ノズル
23 塵埃濃度計測装置
Claims (5)
- クリーンルーム内の天井側に配設された走行レールに沿って走行する天井搬送車に対して空気を噴出する空気噴出装置を備え、前記天井搬送車を清掃する清掃装置であって、
外部空間から遮蔽された遮蔽空間を形成する区画体が設けられ、
前記区画体は、前記天井搬送車が走行移動により前記遮蔽空間に進入自在に構成され、
前記空気噴出装置は、前記遮蔽空間において走行停止状態の前記天井搬送車に対して清掃作動する清掃装置。 - 前記遮蔽空間内の空気を吸入して前記遮蔽空間外に排出するファンと当該排出する空気を浄化するフィルタとを備えるファンフィルタユニットが、前記区画体に備えられている請求項1に記載の清掃装置。
- 前記区画体には、前記天井搬送車が前記遮蔽空間に進入する進入口と前記天井搬送車が前記遮蔽空間から退出する退出口とが設けられ、
前記進入口を開放する開状態と閉鎖する閉状態とに切り換え自在な進入口開閉装置と、前記退出口を開放する開状態と閉鎖する閉状態とに切り換え自在な退出口開閉装置と、前記進入口開閉装置及び前記退出口開閉装置の開閉作動並びに前記空気噴出装置の清掃作動を制御する制御装置と、前記遮蔽空間における塵埃の濃度を計測する塵埃濃度計測装置とを備え、
前記制御装置は、前記天井搬送車が前記遮蔽空間に停止した状態で前記進入口開閉装置及び前記退出口開閉装置を前記閉状態とするべく、前記進入口開閉装置及び前記退出口開閉装置の作動を制御した後、前記空気噴出装置の清掃作動を開始させるべく、前記空気噴出装置の作動を制御するとともに、
前記制御装置は、前記空気噴出装置の清掃作動を開始させた後、前記塵埃濃度計測装置の計測情報に基づいて、前記遮蔽空間における塵埃の濃度が設定塵埃濃度まで低下したと判別すると、前記空気噴出装置の清掃作動を終了させるべく、前記空気噴出装置の作動を制御するように構成されている請求項2に記載の清掃装置。 - 前記空気噴出装置は、空気を噴出するノズルを、噴出対象箇所を変更自在な状態で、複数備えて構成されている請求項1~3のいずれか1項に記載の清掃装置。
- 前記走行レール上を走行する前記天井搬送車が進入自在な筐体を備えて、前記天井搬送車を床側に離脱させる昇降機構を前記筐体内に備えたメンテナンス用の昇降装置が設けられ、
前記遮蔽空間が、前記区画体としての前記筐体により形成され、
前記空気噴出装置が前記筐体内に設けられている請求項1~4のいずれか1項に記載の清掃装置。
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- 2013-02-28 SG SG11201405516VA patent/SG11201405516VA/en unknown
- 2013-02-28 WO PCT/JP2013/055441 patent/WO2013133124A1/ja active Application Filing
- 2013-02-28 US US14/382,750 patent/US9687889B2/en active Active
- 2013-02-28 KR KR1020147022144A patent/KR102025209B1/ko active IP Right Grant
- 2013-03-05 TW TW102107622A patent/TWI610868B/zh active
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CN111121528A (zh) * | 2019-12-25 | 2020-05-08 | 河南省森电智能装备有限公司 | 一种应于变电站变压器散热器的智能清扫装置及清扫方法 |
CN114435306A (zh) * | 2020-10-19 | 2022-05-06 | 中铁第四勘察设计院集团有限公司 | 一种用于城轨车车辆的智能吹扫机器人系统 |
CN114435306B (zh) * | 2020-10-19 | 2023-06-27 | 中铁第四勘察设计院集团有限公司 | 一种用于城轨车车辆的智能吹扫机器人系统 |
CN117894725A (zh) * | 2024-03-15 | 2024-04-16 | 华芯智上半导体设备(上海)有限公司 | 自动化物料传输系统 |
CN117894725B (zh) * | 2024-03-15 | 2024-05-14 | 华芯智上半导体设备(上海)有限公司 | 自动化物料传输系统 |
Also Published As
Publication number | Publication date |
---|---|
TWI610868B (zh) | 2018-01-11 |
KR20140138126A (ko) | 2014-12-03 |
KR102025209B1 (ko) | 2019-09-25 |
US20150020343A1 (en) | 2015-01-22 |
TW201400387A (zh) | 2014-01-01 |
JP5720954B2 (ja) | 2015-05-20 |
JP2013184762A (ja) | 2013-09-19 |
US9687889B2 (en) | 2017-06-27 |
CN104159838B (zh) | 2016-01-13 |
CN104159838A (zh) | 2014-11-19 |
SG11201405516VA (en) | 2014-11-27 |
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