WO2018083822A1 - 粉塵除去装置及び粉塵除去システム - Google Patents
粉塵除去装置及び粉塵除去システム Download PDFInfo
- Publication number
- WO2018083822A1 WO2018083822A1 PCT/JP2017/014362 JP2017014362W WO2018083822A1 WO 2018083822 A1 WO2018083822 A1 WO 2018083822A1 JP 2017014362 W JP2017014362 W JP 2017014362W WO 2018083822 A1 WO2018083822 A1 WO 2018083822A1
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- WIPO (PCT)
- Prior art keywords
- nozzle
- hole
- dust
- compressed fluid
- injection
- Prior art date
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- 239000000428 dust Substances 0.000 title claims abstract description 348
- 239000012530 fluid Substances 0.000 claims abstract description 287
- 238000002347 injection Methods 0.000 claims description 226
- 239000007924 injection Substances 0.000 claims description 226
- 230000002093 peripheral effect Effects 0.000 claims description 66
- 239000007921 spray Substances 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 5
- 238000012986 modification Methods 0.000 description 59
- 230000004048 modification Effects 0.000 description 59
- 239000003570 air Substances 0.000 description 41
- 238000003825 pressing Methods 0.000 description 24
- 229910000831 Steel Inorganic materials 0.000 description 21
- 239000010959 steel Substances 0.000 description 21
- 238000004891 communication Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 238000003754 machining Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/14—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum cleaning by blowing-off, also combined with suction cleaning
-
- 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
-
- 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
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- 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
-
- 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
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/021—Cleaning pipe ends or pipe fittings, e.g. before soldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0046—Devices for removing chips by sucking
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/006—Devices for removing chips by sucking and blowing simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0075—Devices for removing chips for removing chips or coolant from the workpiece after machining
Definitions
- the present invention inserts an injection nozzle into a hole of an object, and injects a compressed fluid from the injection nozzle to the hole in a state where the hole is closed by a suction nozzle surrounding the injection nozzle.
- the present invention relates to a dust removing device that sucks a dust with a suction nozzle, and a dust removing system having the dust removing device.
- an apparatus for removing dust such as chips and foreign matters adhering to a hole formed in an object is disclosed in JP-A-2005-153039, JP-A-2004-033841, JP-A-2004-243209, And it is disclosed by Unexamined-Japanese-Patent No. 2015-013229.
- an injection pipe (injection nozzle) is inserted into a processed hole after cutting, and the processing hole is closed with a hollow member (suction nozzle) surrounding the injection pipe, and pressurized from the injection pipe.
- a machining hole cleaning device is disclosed in which chips and foreign matter accumulated in a machining hole are suspended by injecting air (compressed fluid), and the floating chips and pressurized air are evacuated through a hollow member. .
- compressed air compressed fluid
- a tip nozzle jet nozzle
- suction nozzle suction pipe
- a double pipe is inserted into a drilling hole in a concrete wall (object), and compressed air (compressed fluid) is injected from an injection port of an outer pipe (injection nozzle).
- a dust collection cleaning device is disclosed in which clean air is allowed to flow into a drilling hole and dust is sucked from the tip of an inner tube (suction nozzle).
- the dust cannot be efficiently removed simply by spraying a positive pressure compressed fluid from the spray nozzle against dust such as chips adhering to the hole formed in the object. While the compressed fluid is ejected to lift the dust adhering to the hole, it is necessary to create a negative pressure air flow by vacuum suction and suck the dust through the suction nozzle.
- the dust removing device is equipped with a flow rate adjusting mechanism for appropriately adjusting the jet flow rate of the compressed fluid jetted from the jet nozzle into the hole and the suction flow rate when sucking the dust by vacuum suction through the suction nozzle. If so, it is expected that the dust adhering to the hole can be efficiently removed.
- the cleaning device does not include the above-described flow rate adjusting mechanism, and thus dust cannot be efficiently removed.
- the flow rate of the compressed air injected from the tip nozzle can be adjusted by a flow rate adjusting valve.
- a mechanism for adjusting the amount of suction from the tip suction pipe is not provided in the handheld cleaner.
- the dust removing device itself provided with the injection nozzle and the suction nozzle is not provided with a flow rate adjusting mechanism for adjusting the injection flow rate and the suction flow rate. Therefore, the dust adhering to the hole could not be removed efficiently.
- the present invention has been made to solve the above problems, and provides a dust removing device and a dust removing system that can efficiently remove dust adhering to a hole of an object. Objective.
- an injection nozzle is inserted into a hole of an object, and a compressed fluid is injected from the injection nozzle to the hole while the hole is closed by a suction nozzle surrounding the injection nozzle.
- the present invention relates to a dust removing device that sucks the dust and the compressed fluid with the suction nozzle, and a dust removing system having such a dust removing device.
- the said dust removal apparatus is a hollow-shaped nozzle main body with which the said injection nozzle and the said suction nozzle are connected, and the said dust and the said compressed fluid which were attracted
- an injection amount adjusting unit that adjusts the flow rate of the compressed fluid that is injected from the injection nozzle
- a suction amount adjusting unit that adjusts the amount of the dust and the compressed fluid sucked by the suction nozzle.
- a second fluid supply path that discharges a part of the second compressed fluid to the downstream side in the discharge direction of the dust and the first compressed fluid is formed as the second compressed fluid.
- the dust and the first compressed fluid are discharged to the outside through the suction nozzle and the nozzle body by the discharge of the second compressed fluid to the downstream side in the discharge direction.
- the injection amount adjusting unit adjusts the flow rate of the first compressed fluid injected from the injection nozzle by adjusting the flow area of the first fluid supply path.
- the suction amount adjusting unit adjusts the flow area of the second fluid supply path and adjusts the flow rate of the second compressed fluid discharged to the downstream side in the discharge direction, whereby suction is performed by the suction nozzle.
- the amount of dust and compressed fluid to be adjusted is adjusted.
- the dust removing device itself provided with the injection nozzle and the suction nozzle has the injection amount adjusting unit that adjusts the flow rate (injection flow rate) of the first compressed fluid, and the second compressed fluid. And a suction amount adjusting unit for adjusting a flow rate (suction flow rate).
- the dust removing device includes the injection amount adjusting unit and the suction amount adjusting unit, the injection nozzle is inserted into the hole in a state where the second compressed fluid is discharged and vacuum suction is generated first. Then, after the suction nozzle comes into contact with the object and closes the hole, the dust is scattered to the outside during the dust removal operation by injecting the first compressed fluid from the injection nozzle. Can be prevented.
- a plurality of the dust removal devices include the injection amount adjustment unit and the suction amount adjustment unit.
- the compressed fluid is sequentially supplied to the individual supply ports in each of the dust removing devices, the second compressed fluid is discharged, and the injection nozzle is inserted into the hole in a state where the vacuum suction is generated first.
- the suction nozzle comes into contact with the object and closes the hole, the first compressed fluid can be ejected from the ejection nozzle. Even in this case, the dust can be prevented from scattering to the outside during the dust removing operation.
- the dust removing device includes the injection amount adjustment unit and the suction amount adjustment unit, so that vacuum suction is generated first, and then the injection nozzle is inserted into the hole to It is possible to supply the first compressed fluid and the second compressed fluid with a time difference that the first compressed fluid is ejected.
- the suction nozzle is applied to the object in a state where the injection flow rate and the suction flow rate are adjusted to appropriate flow rates. After the hole is closed by contact, the generation of vacuum suction and the injection of the first compressed fluid are started, so that a desired removal operation can be completed in a short time. As a result, consumption of the first compressed fluid and the second compressed fluid is suppressed, and it is possible to save energy in an external fluid supply source that supplies the compressed fluid.
- the base end portion of the injection nozzle is fixed to the suction nozzle.
- the suction nozzle is mounted on the inner peripheral surface of the nozzle body so as to be movable along the axial direction of the nozzle body.
- the second fluid supply path is a gap formed between the proximal end portion of the suction nozzle and the inner peripheral surface of the nozzle body.
- the suction amount adjusting unit adjusts the flow rate of the second compressed fluid by adjusting the opening of the gap by moving the suction nozzle in the axial direction with respect to the inner peripheral surface of the nozzle body. Good.
- the suction nozzle is moved in the axial direction with respect to the inner peripheral surface of the nozzle body and the opening degree of the gap is adjusted, the suction flow rate is easily adjusted. It becomes possible.
- the injection amount adjusting unit is a needle screw provided in the nozzle body for restricting the first fluid supply path.
- the suction amount adjusting unit may be an adjustment screw that is formed on each of the outer peripheral surface of the suction nozzle and the inner peripheral surface of the nozzle body and is screwed together.
- the injection flow rate and the suction flow rate can be easily and efficiently adjusted to appropriate flow rates.
- the dust adhering to the hole can be effectively removed.
- an injection hole for injecting the first compressed fluid is formed in the outer peripheral surface and / or the front end surface of the front end portion of the injection nozzle, and the front end portion of the injection nozzle is configured to be replaceable. Good.
- the first compressed fluid can be injected toward the inner peripheral surface of the hole, and the dust attached to the inner peripheral surface can be removed.
- the first compressed fluid can be sprayed to the bottom of the hole to remove the dust adhering to the bottom. Furthermore, by configuring the tip portion in which the injection hole is formed to be replaceable, maintenance of the injection nozzle is facilitated, and the tip portion can be appropriately replaced according to the type of dust and the like. Become.
- the injection hole is formed along the axial direction of the injection nozzle, is formed along the radial direction of the injection nozzle, and / or is inclined at a predetermined angle with respect to the radial direction. What is necessary is just to be formed in the state.
- the first compressed fluid is injected from the injection hole in an angled direction with respect to the radial direction.
- a flow in which the first compressed fluid swirls is formed in the hole.
- the tip of the injection nozzle is composed of an inner cylinder connected to the injection nozzle, and an outer cylinder attached to the inner cylinder so as to be rotatable about the central axis of the injection nozzle. Also good. In this case, it is only necessary that the inner cylinder portion has an inner injection hole formed in the radial direction, and the outer cylinder portion has an outer injection hole inclined at a predetermined angle with respect to the radial direction. .
- the tip portion has a two-layer structure of the inner tube portion and the outer tube portion, the inner tube portion is fixed to the injection nozzle, and the outer tube portion on the outer side with the inner tube portion as an axis. Is configured to be rotatable.
- the suction nozzle includes a cylindrical mounting portion that is mounted on the nozzle body, and a cylindrical mounting portion that is removable with respect to the mounting portion and to which the proximal end portion of the injection nozzle is mounted. May be.
- a protrusion is formed on the outer peripheral surface of the mounting portion, and the mounting portion is provided with a locking portion that protrudes inward of the mounting portion to lock the protrusion.
- the mounting portion and the injection nozzle are unitized so as to be removable.
- size (hole diameter) and depth of the said hole, the kind of the said dust, etc. it becomes possible to replace
- the usability of the dust removing device is improved and the maintainability of the spray nozzle is also improved.
- the dust removing device is interposed between the first cylinder attached to the tip of the suction nozzle so as to be movable along the outer peripheral surface of the suction nozzle, and between the nozzle body and the first cylinder.
- a first spring member inserted; and a first plunger provided on the nozzle body and extending toward the first cylinder along the axial direction of the nozzle body.
- the nozzle body is further formed with an inlet channel for supplying the compressed fluid supplied from the outside to the first fluid supply channel and the second fluid supply channel.
- the 1st seal body which can open and close the said entrance flow path is attached to the base end part of the said 1st plunger.
- the first cylinder is brought into contact with the object, and the nozzle body moves toward the object against the elastic force of the first spring member, whereby the first plunger is moved to the first cylinder.
- the first seal body opens the inlet channel by the displacement of the first plunger in the axial direction accompanying the movement of the nozzle body toward the object.
- the displacement of the first plunger that is inserted into the hole the first cylinder contacts the object, closes the hole, and contacts the first cylinder.
- the inlet flow path is opened by the movement of the first seal body by the above, the first compressed fluid and the second compressed fluid can be supplied.
- the supply of the first compressed fluid and the second compressed fluid is automatically started or stopped by the opening and closing of the inlet flow path by the first seal body resulting from the contact of the cylindrical body with the object. Done. For this reason, it is possible to prevent the first compressed fluid and the second compressed fluid from being wasted. Thereby, the energy saving of the external fluid supply source which supplies the said compressed fluid can be achieved.
- a valve body that closes the injection hole may be provided at the tip of the injection nozzle.
- the injection nozzle is inserted into the hole, the valve body comes into contact with the bottom of the hole, and the valve body is displaced in the axial direction of the injection nozzle, whereby the injection hole is opened, and the injection hole From which the first compressed fluid is ejected.
- the vacuum suction by the discharge of the second compressed fluid is started.
- the dust adhering to the hole can be prevented from scattering to the outside, and the space in which the dust is removed can be kept clean.
- the dust removing device is interposed between a second cylinder attached to the tip of the suction nozzle so as to be movable along the outer peripheral surface of the suction nozzle, and between the nozzle body and the second cylinder. You may further provide the 2nd spring member inserted, and the 2nd plunger provided toward the said nozzle main body and extended toward the said 2nd cylinder along the axial direction of this nozzle main body.
- a second seal body capable of opening and closing the first fluid supply path is attached to the proximal end portion of the second plunger.
- the second cylinder is brought into contact with the object, and the nozzle body moves toward the object against the elastic force of the second spring member, whereby the second plunger is moved to the second cylinder.
- the second seal body opens the first fluid supply path by the displacement of the second plunger in the axial direction accompanying the movement of the nozzle body toward the object.
- the second seal body closes the first fluid supply path.
- the dust removing device protrudes from the nozzle body and / or the suction nozzle toward the object, and when the spray nozzle is inserted into the hole, before the spray nozzle contacts the bottom of the hole. Further, a cylindrical portion that contacts the surface of the object may be further provided.
- the tip of the suction nozzle contacts the bottom of the hole and cannot suck the dust. It is possible to avoid the occurrence of a state. As a result, even if there is a difference in the depth of the hole, the tip of the suction nozzle can be indirectly brought into contact with the surface of the object through the cylindrical portion to close the hole.
- the cylindrical portion may be returned to a position before contact with the object by a spring back function when separated from the object.
- the tip of the suction nozzle can be brought into contact with the surface of the object indirectly through the cylindrical portion to close the hole.
- the dust removing device may further include dust detecting means for detecting passage of the dust in the nozzle body. Thereby, the passage of the dust is eliminated, and it can be easily confirmed that the dust is removed from the hole.
- the fluid supply source immediately supplies the compressed fluid to the dust removal device based on the notification signal. Can be stopped.
- the dust detection means quantitatively determines the completion of the dust removal operation, the use of the determination result can suppress wasteful consumption of the compressed fluid.
- the dust removing device is provided with a closing member that is replaceably attached to the suction nozzle and closes the periphery of the hole on the surface of the object when the injection nozzle is inserted into the hole. May be. Thereby, at the time of the dust removal operation, the removal operation can be performed without leaking the dust and the compressed fluid to the outside.
- the dust removing system includes a plurality of the dust removing devices described above, and a compressed fluid supply block that connects and fixes the dust removing devices and supplies the compressed fluid to the dust removing devices.
- a compressed fluid supply block that connects and fixes the dust removing devices and supplies the compressed fluid to the dust removing devices.
- the dust removing devices may be fixed at a predetermined interval along the longitudinal direction of the compressed fluid supply block so that the extending directions of the injection nozzles are the same as each other. Accordingly, if a plurality of the holes are formed in the same direction on the surface of the object, it is possible to insert the spray nozzles of the dust removing devices into the holes and perform the dust removing operation at the same time. Therefore, the removal operation can be performed more efficiently.
- the compressed fluid supply block only needs to be provided with an attachment position adjusting mechanism for adjusting the attachment position of each dust removing device for each dust removing device.
- FIG. 3A is a perspective view of a tip portion of a spray nozzle according to a first modification
- FIG. 3B is a cross-sectional view taken along line IIIB-IIIB of FIG. 3A
- 4A is a perspective view of another configuration of the first modified example
- FIG. 4B is a cross-sectional view taken along the line IVB-IVB of FIG. 4A
- FIG. 5A is a perspective view of another configuration of the first modification
- FIG. 5B is a cross-sectional view taken along the line VB-VB of FIG. 5A.
- FIG. 6A is a perspective view of another configuration of the first modification
- FIG. 6B is a side view of the tip portion of FIG. 6A
- FIG. 6C is a cross-sectional view taken along the line VIC-VIC of FIG. 6B. is there.
- FIG. 7A is a perspective view of another configuration of the first modified example
- FIG. 7B is a side view of the distal end portion of FIG. 7A.
- 8A to 8C are cross-sectional views taken along lines VIIIA-VIIIA, VIIIB-VIIIB, and VIIIC-VIIIC in FIG. 7B, respectively. It is a partial cross section figure of the front-end
- FIG. 12A and 12B are partial cross-sectional views in which the tip of the injection nozzle of FIG. 11 is enlarged. It is sectional drawing of the dust removal apparatus of a 5th modification. It is a partial cross section figure of the front-end
- FIG. 19 is a cross-sectional view taken along line XIX-XIX in FIG. It is a perspective view of the dust removal system of the 9th modification. It is the perspective view which illustrated the case where dust removal operation
- FIG. 25 is a sectional view taken along line XXV-XXV in FIG. 24. It is sectional drawing of the dust removal system of an 11th modification.
- FIG.1 and FIG.2 is sectional drawing of the dust removal apparatus 10 which concerns on this embodiment.
- the dust removing device 10 inserts an injection nozzle 16 into a hole 14 of a workpiece 12 that is an object, and compresses the compressed fluid from the injection nozzle 16 to the hole 14 with the hole 14 closed by a suction nozzle 18 surrounding the injection nozzle 16.
- This is a nozzle device that injects dust adhering to the hole 14 and the injected compressed fluid with the suction nozzle 18 while injecting (for example, pressurized air of positive pressure blow).
- work 12 is a workpiece
- the dust removing device 10 is applied to a work for removing dust such as chips and foreign matters remaining in the holes 14 after machining.
- the dust removing device 10 includes a hollow nozzle body 20.
- the nozzle body 20 is a cylindrical member having a step in which the tip end portion 22 in the A1 direction is a large diameter portion and the base end portion 24 in the A2 direction (discharge direction) is a small diameter portion.
- a nozzle main body side adjusting screw 28 (suction amount adjusting portion) is formed on the tip 22 side of the inner peripheral surface 26 of the nozzle main body 20.
- the suction nozzle 18 extends along the central axis 30 of the nozzle body 20 and has a cylindrical member having a step in which the tip end portion 32 in the A1 direction is a large diameter portion and the base end portion 34 in the A2 direction is a small diameter portion. It is.
- a suction nozzle side adjusting screw 38 (suction amount adjusting portion) is formed on the distal end portion 32 side of the outer peripheral surface 36 of the suction nozzle 18.
- the nozzle body side adjustment screw 28 and the suction nozzle side adjustment screw 38 are screwed together, whereby the suction nozzle 18 can be screwed inwardly of the nozzle body 20.
- the suction nozzle 18 is mounted on the inner peripheral surface 26 of the nozzle body 20 substantially coaxially with the central shaft 30.
- the injection nozzle 16 is a cylindrical member whose base end portion 40 is fixed to the base end portion 34 side of the suction nozzle 18 and whose front end portion 42 side protrudes from the front end portion 32 of the suction nozzle 18 in the A1 direction.
- the base end portion 40 of the injection nozzle 16 is fixed to the suction nozzle 18 so as to communicate with a recess 44 formed between the tip end portion 32 and the base end portion 34 of the suction nozzle 18.
- the injection nozzle 16 is curved in the A1 direction while extending inward in the radial direction from the base end portion 40 toward the central axis 30, and has a substantially J shape extending in the A1 direction along the central axis 30. It has a cross-sectional shape.
- the injection nozzle 16 includes a nozzle main body portion 46 having a J-shaped cross section fixed to the suction nozzle 18 and a front end portion 42 fixed to the front end of the nozzle main body portion 46.
- the distal end portion 42 is formed with injection holes 48 in a direction along the central axis 30 (A direction which is an axial direction) and a radial direction orthogonal to the central axis 30.
- a compressed fluid supply unit 54 is provided at a position of an intermediate portion 52 between the distal end portion 22 and the proximal end portion 24 on the outer peripheral surface 50.
- the compressed fluid supply unit 54 is an annular or rectangular member provided on the outer peripheral surface 50 of the nozzle body 20, and has an inlet channel 56 through which compressed fluid is supplied from an external fluid supply source (not shown).
- An annular communication hole 58 that allows the inlet channel 56 and the nozzle body 20 to communicate with each other is formed in the intermediate portion 52 of the nozzle body 20.
- a communication hole 60 that communicates with the recess 44 is formed at a location closer to the A1 direction than the communication hole 58.
- a channel 62 having a substantially U-shaped cross section for communicating the communication hole 58 and the communication hole 60 is formed at a location different from the inlet channel 56.
- a screw hole 64 communicating with the outside is formed at a location on the A2 direction side of the flow path 62.
- a needle screw 66 (injection amount adjusting portion) is screwed into the screw hole 64.
- the inner peripheral surface 26 of the nozzle body 20 has the largest inner diameter at the nozzle body side adjustment screw 28 and the next largest inner diameter at the intermediate portion 52 from the distal end portion 22 toward the proximal end portion 24.
- the inner diameter of the portion 24 is the smallest.
- a step 68 is formed in the vicinity of the communication hole 58 in the portion on the base end portion 24 side of the inner peripheral surface 26.
- a reduced diameter portion, a portion extending straight along the central axis 30, and an expanded portion are formed in this order from the step 68 in the A2 direction.
- a reduced diameter portion and a straight extending portion are formed as a discharge surface 70 of the compressed fluid (second compressed fluid).
- the portion in the A2 direction side of the suction nozzle 18 in the nozzle body 20 is configured as a discharge flow path 72 that discharges dust adhering to the hole 14 and compressed fluid injected from the injection hole 48 to the outside.
- the outer peripheral surface 36 of the suction nozzle 18 has a shape corresponding to the inner peripheral surface 26 of the nozzle body 20. That is, the suction nozzle side adjusting screw 38 is formed on the tip end portion 32 side. Further, a portion between the suction nozzle side adjusting screw 38 and the base end portion 34 on the outer peripheral surface 36 is straight so as to be in sliding contact with a portion of the intermediate portion 52 on the inner peripheral surface 26 of the nozzle body 20. A concave portion 44 is formed in this straight portion. The base end portion 34 is inclined substantially parallel to the reduced diameter portion of the discharge surface 70.
- the inner peripheral surface 74 of the suction nozzle 18 has the largest inner diameter on the distal end portion 32 side, the portion of the suction nozzle side adjusting screw 38 is reduced in diameter toward the A2 direction, and the concave portion 44 and the base end portion 34 are located.
- the concave portions 44 and the base end portion 34 extending in a straight shape have substantially the same inner diameter as the straight portion on the base end portion 24 side of the inner peripheral surface 26 of the nozzle body 20.
- the inner peripheral surface 74 of the suction nozzle 18 constitutes a discharge channel 76 that discharges dust adhering to the hole 14 and the compressed fluid injected from the injection hole 48 to the discharge channel 72.
- a part of the compressed fluid supplied from the external fluid supply source to the inlet channel 56 is defined as the first compressed fluid by the communication hole 58, the channel 62, the communication hole 60, and the recess 44 communicating with the inlet channel 56.
- a first fluid supply path 80 is configured to be supplied to the injection flow path 78 in the injection nozzle 16.
- the second fluid supply path 84 is configured to discharge another part of the compressed fluid supplied from the fluid supply source to the inlet channel 56 to the discharge channel 72 as the second compressed fluid.
- the fluid supply source is an air supply source
- the compressed fluid, the first compressed fluid, and the second compressed fluid are pressurized air, first pressurized air, and second pressurized air, respectively. Will be described.
- the needle screw 66 Prior to the dust removal operation, the needle screw 66 is turned by a predetermined amount according to the size (hole diameter) and depth of the hole 14, the type of dust, and the like. The opening degree of the gap 86 with the flow path 62 is adjusted. Thereby, the flow volume (injection flow rate) of the 1st pressurized air supplied to the injection flow path 78 of the injection nozzle 16 via the 1st fluid supply path 80 can be adjusted.
- the nozzle body 20 is rotated.
- the injection nozzle 16 and the suction nozzle 18 are advanced and retracted in the A direction, and the opening degree of the gap 82 between the step 68 and the base end portion 34 is adjusted.
- released to the discharge flow path 72 via the 2nd fluid supply path 84 can be adjusted.
- the tip end portion 42 of the jet nozzle 16 is inserted into the hole 14, and the portion around the hole 14 on the surface 88 of the work 12 is positioned at the tip end portion 32 of the suction nozzle 18. Contact. As a result, the tip portion 42 of the injection nozzle 16 faces the bottom 90 and the inner peripheral surface 92 of the hole 14, and the hole 14 is closed by the suction nozzle 18.
- pressurized air is supplied to the inlet channel 56 from an external air supply source.
- a part of the pressurized air supplied to the inlet channel 56 is distributed to the first fluid supply path 80 as the first pressurized air, and the other part is the second fluid as the second pressurized air. It is distributed to the supply path 84.
- the first pressurized air is supplied from the first fluid supply passage 80 to the injection passage 78 of the injection nozzle 16 and is injected as positive pressure blow into the hole 14 from the plurality of injection holes 48 of the tip end portion 42.
- the injection hole 48 formed substantially coaxially with the central shaft 30 injects the first pressurized air toward the bottom 90 of the hole 14 and causes dust adhering to the bottom 90 to rise.
- the injection hole 48 formed in the radial direction with respect to the central shaft 30 injects the first pressurized air toward the inner peripheral surface 92 of the hole 14 and causes the dust adhering to the inner peripheral surface 92 to rise.
- the second pressurized air is discharged from the second fluid supply channel 84 to the discharge channel 72 through the gap 82.
- the second pressurized air is discharged in the A2 direction along the discharge surface 70.
- a jet of the second pressurized air is jetted, and the space around the discharge surface 70 is depressurized to be in a vacuum state.
- ambient air second pressurized air that is a jet
- the second pressurized air jet flows in the A2 direction (discharge direction) along the discharge surface 70.
- the dust that has been lifted by the first pressurized air and the first pressurized air are discharged from the hole 14 through the discharge channel 76 of the suction nozzle 18.
- the nozzle body 20 is vacuum-sucked and discharged from the discharge passage 72 of the nozzle body 20 to the outside.
- the discharged dust is collected in a dust collection box (not shown) or the like through a hollow member that allows dust to pass, such as a dust collection hose connected to the discharge flow path 72 of the nozzle body 20.
- FIG. 1 illustrates the case where the opening of the gap 82 is large and the flow rate (suction flow rate) of the second pressurized air released from the gap 82 is large, and suction of the first pressurized air and dust is illustrated. The amount is relatively large.
- FIG. 2 shows a case where the opening of the gap 82 is small and the flow rate of the second pressurized air released from the gap 82 is small, and the suction amount of the first pressurized air and dust is relatively small. .
- the opening degree of the gap 86 is adjusted by the needle screw 66 before the injection nozzle 16 is inserted into the hole 14, while the gap 82 is adjusted by the nozzle main body side adjustment screw 28 and the suction nozzle side adjustment screw 38.
- the opening degree of was adjusted.
- the opening degree of the gaps 82 and 86 may be adjusted after the injection nozzle 16 is inserted into the hole 14 and before the pressurized air is supplied from the air supply source to the inlet channel 56.
- the screw 66 and the nozzle body side adjusting screw 28 and the suction nozzle side adjusting screw 38 for adjusting the flow rate (suction flow rate) of the second compressed fluid are provided.
- dust and the first compressed fluid are discharged from the suction nozzle 18 through the nozzle body 20 by the vacuum flow rate of the first compressed fluid injected from the injection nozzle 16 into the hole 14 and the discharge of the second compressed fluid. Therefore, the suction flow rate of the second compressed fluid can be adjusted to an appropriate flow rate. As a result, the dust adhering to the hole 14 can be efficiently removed.
- the dust removing device 10 includes the nozzle main body side adjusting screw 28, the suction nozzle side adjusting screw 38, and the needle screw 66, the ejection nozzle is discharged in a state where the second compressed fluid is discharged and the vacuum suction is generated first. 16 is inserted into the hole 14, and after the tip 32 of the suction nozzle 18 abuts against the surface 88 of the workpiece 12 to close the hole 14, the first compressed fluid is injected from the injection hole 48, During the dust removal operation, the dust can be prevented from scattering to the outside.
- the dust removing device 10 includes the nozzle body side adjustment screw 28, the suction nozzle side adjustment screw 38, and the needle screw 66, so that vacuum suction is generated first, and then the tip of the injection nozzle 16 is inserted into the hole 14. It is possible to supply the first compressed fluid and the second compressed fluid with a time difference in which the first compressed fluid is ejected by inserting 42.
- the nozzle body side adjusting screw 28, the suction nozzle side adjusting screw 38, and the needle screw 66 are provided in the dust removing device 10, so that the suction flow rate and the suction flow rate of the suction nozzle 18 are adjusted to appropriate flow rates.
- the desired removal operation is completed in a short time by starting the generation of vacuum suction and the injection of the first compressed fluid. Is possible. As a result, consumption of the first compressed fluid and the second compressed fluid is suppressed, and energy saving of an external fluid supply source that supplies the compressed fluid can be achieved.
- the adjustment mechanism is a simple adjustment mechanism that adjusts the opening degree of the gap 82. It becomes possible to easily adjust the suction flow rate of the compressed fluid.
- the needle screw 66 is used to restrict the flow area of the first fluid supply path 80.
- the nozzle main body side adjustment screw 28 and the suction nozzle side adjustment screw 38 are formed on the inner peripheral surface 26 of the nozzle main body 20 and the outer peripheral surface 36 of the suction nozzle 18, respectively, and are adjustment screws that are screwed together. Thereby, the injection flow rate and the suction flow rate can be easily and efficiently adjusted to appropriate flow rates. As a result, the dust adhering to the hole 14 can be effectively removed.
- a dust removing device 10A according to a first modification will be described with reference to FIGS. 3A to 8C.
- the dust removing device 10A is different from the dust removing device 10 of FIGS. 1 and 2 in that the tip portion 42 of the spray nozzle 16 is configured to be replaceable.
- the flow path 100 is formed substantially coaxially with the central axis 30 at the distal end portion 42, and the injection hole 48 formed substantially coaxial with the central axis 30 communicates with the flow path 100.
- a portion (tip surface side) in the A1 direction of the tip portion 42 where the injection hole 48 is formed is tapered toward the A1 direction.
- a screw 102 is formed on the A2 direction side of the distal end portion 42.
- FIGS. 3A and 3B are different from the example of FIGS. 3A and 3B in that a plurality of injection holes 48 are formed in the outer peripheral surface in the radial direction in addition to the injection holes 48 of the tip portion 42 in the A1 direction. Is different.
- the plurality of injection holes 48 formed in the radial direction are formed at predetermined angular intervals along the circumferential direction of the distal end portion 42 and at predetermined intervals along the longitudinal direction (A direction) of the distal end portion 42. It is formed and communicates with the flow path 100.
- 5A and 5B show that the injection hole 48 is not provided in a portion (tip surface side) of the tip portion 42 in the A1 direction, and the portion in the A1 direction is formed flat. Different from the example.
- the injection hole 48 is formed in the outer peripheral surface and / or the front end surface of the front end portion 42 of the injection nozzle 16 so that the front end portion 42 can be replaced.
- the tip portion 42 can be appropriately replaced according to the type of dust.
- the injection hole 48 is formed on the outer peripheral surface of the tip portion 42, the first compressed fluid is injected in the direction indicated by the arrow toward the inner peripheral surface 92 of the hole 14, and adheres to the inner peripheral surface 92. It becomes possible to remove the dust.
- the injection hole 48 is formed on the tip surface of the tip part 42, the first compressed fluid is jetted in the direction indicated by the arrow toward the bottom part 90 of the hole 14, and the dust adhering to the bottom part 90 is removed. It can be removed.
- FIGS. 6A to 6C are different from the examples of FIGS. 5A and 5B in that the injection hole 48 is formed on the outer peripheral surface of the tip end portion 42 at a predetermined angle with respect to the radial direction.
- the first compressed fluid is injected from the injection hole 48 in the direction indicated by the arrow in FIG. 6C with an angle with respect to the radial direction.
- a flow is formed in the hole 14 such that the first compressed fluid swirls around the tip portion 42.
- the dust adhering to the inner peripheral surface 92 of the hole 14 can be efficiently removed.
- a screw is formed in the hole 14 if a swirl flow along the screw forming direction is generated, dust adhering to the valley portion of the screw can be effectively removed.
- the 7A to 8C have an inner cylinder part 42a in which the tip part 42 is connected to the nozzle body part 46, and an outer cylinder part 42b that is mounted on the inner cylinder part 42a so as to be rotatable about the central axis 30.
- the inner cylinder part 42a is connected to the base end part 42c in which the screw 102 is formed.
- the outer cylinder part 42b is mounted
- the inner cylinder portion 42a is formed with a plurality of inner injection holes 48a in the radial direction, while the outer cylinder portion 42b is formed with a plurality of outer injection holes 48b inclined at a predetermined angle with respect to the radial direction. ing.
- the plurality of inner injection holes 48a formed in the radial direction are formed at predetermined angular intervals along the circumferential direction of the inner cylindrical portion 42a, and are formed at predetermined intervals along the A direction.
- FIGS. 8A to 8C when viewed at different positions along the A direction, the inner injection holes 48a are formed with a phase shift.
- the plurality of outer injection holes 48b are formed at predetermined angular intervals along the circumferential direction of the outer cylinder portion 42b, and are formed at predetermined intervals along the A direction. Moreover, the inner injection hole 48a and the outer injection hole 48b are provided in the inner cylinder part 42a and the outer cylinder part 42b, respectively, in a state where the phases are shifted from each other.
- the tip end portion 42 has a two-layer structure of the inner cylinder portion 42a and the outer cylinder portion 42b.
- the inner inner cylinder part 42a is fixed to the nozzle body 46 via the base end part 42c
- the outer outer cylinder part 42b is configured to be rotatable about the inner cylinder part 42a.
- the first compressed fluid is jetted toward the inner peripheral surface 92 of the hole 14 when the positions (phases) of the inner jet hole 48a and the outer jet hole 48b are matched.
- the first compressed fluid ejected from the ejection nozzle 16 toward the inner peripheral surface 92 of the hole 14 becomes a pulsed jet.
- the outer cylindrical portion 42b has an arc-shaped arrow about the central axis 30 by the jet of the first compressed fluid. Turn in the direction indicated by.
- flow by the 1st compressed fluid can be easily generated in the hole 14, and it becomes possible to remove the dust adhering to the hole 14 efficiently.
- the inner injection holes 48a are not formed in a line along the A direction, but are formed at different angles along the circumferential direction. Thereby, for example, it is possible to generate a swirl flow by injecting a jet of the first compressed fluid in the form of pulses sequentially from the outer side injection hole 48b near the bottom 90 of the hole 14 toward the A2 direction.
- a dust removing device 10B according to a second modification will be described with reference to FIG.
- the dust removing device 10B is the same as the dust removing device 10 of FIGS. 1 and 2 in that the spray nozzle 16 and a part of the suction nozzle 18 are unitized as a nozzle unit 104 that is removable from the dust removing device 10B. Is different.
- the suction nozzle 18 includes a cylindrical mounting portion 18a and a cylindrical mounting portion 18b.
- a suction nozzle side adjustment screw 38 is formed on the outer peripheral surface of the mounting portion 18a, and the suction nozzle side adjustment screw 38 and the nozzle body side adjustment screw 28 of the nozzle body 20 are screwed together, so that the nozzle body 20 is attached to the mounting portion 18a. Screwed.
- the attachment portion 18b is removable with respect to the inner peripheral surface of the mounting portion 18a, and the base end portion 40 of the injection nozzle 16 is attached. Therefore, the nozzle unit 104 is configured by the mounting portion 18 b and the injection nozzle 16.
- the A1 direction side of the mounting portion 18a is a large diameter portion 106 in which the suction nozzle side adjusting screw 38 and the recess 44 are formed. Further, the A2 direction side of the mounting portion 18a is connected to the large diameter portion 106 and is a small diameter portion 108 having a base end portion 34. The large-diameter portion 106 and the small-diameter portion 108 constitute a step portion 110. Accordingly, the mounting portion 18 a is a cylindrical portion having the step portion 110. The attachment portion 18b is fitted inside the large-diameter portion 106 so that the end portion in the A2 direction contacts the stepped portion 110.
- an annular protrusion 112 is formed on the outer peripheral surface of the mounting portion 18b.
- a through hole 114 is formed in the radial direction at the tip of the mounting portion 18a, and a steel ball 116 is disposed in the through hole 114.
- a steel ball pressing member 118 made of a ring-shaped spring material for holding the steel ball 116 in the through hole 114 is fitted into the outer peripheral surface of the tip portion of the mounting portion 18a.
- the through hole 114, the steel ball 116, and the steel ball pressing member 118 constitute a locking portion 120 for locking the protrusion 112 when the mounting portion 18 b is mounted inside the large diameter portion 106.
- the steel ball holding member 118 is a C-shaped spring steel in which a part of the ring is cut.
- the steel ball holding member 118 extends in the radial direction of the steel ball 116. It functions so that the steel ball 116 is released to the outside while holding the steel ball 116 with respect to the movement.
- the inner peripheral surface (inner peripheral surface 74) of the mounting portion 18b is the same as the suction nozzle 18 of FIGS. 1 and 2 and has the largest inner diameter on the tip end portion 32 side and faces the suction nozzle side adjustment screw 38. Slightly decreases in the A2 direction, and the inner diameter of the concave portion 44 is the smallest.
- the portion facing the recess 44 extending in a straight shape has substantially the same inner diameter as the straight portion on the base end portion 34 side on the inner peripheral surface (inner peripheral surface 74) of the mounting portion 18a.
- the nozzle unit 104 is inserted inward of the large diameter part 106 in the state which orient
- the protrusion 112 abuts on the steel ball 116 to press the nozzle unit 104 in the A2 direction, and the steel ball 116 incorporated in the large diameter portion 106 resists the spring force of the steel ball pressing member 118 which is a spring material.
- the protrusion 112 is displaced from the position of the steel ball 116 to the A2 direction side, and the nozzle unit 104 can be further pushed in.
- the nozzle unit 104 when removing the nozzle unit 104 from the dust removing device 10B, the nozzle unit 104 is pulled in the A1 direction. In this case, the protrusion 112 abuts on the steel ball 116, but when the nozzle unit 104 is further pulled in the A1 direction, the steel ball 116 moves in the radial direction against the spring force of the steel ball holding member 118, and the large diameter portion 106 expands. As a result, the projection 112 can be displaced from the position of the steel ball 116 toward the A1 direction, and the nozzle unit 104 can be removed. Then, when the steel ball 116 is released by the pressing force from the protrusion 112, the locking portion 120 returns to the position shown in FIG.
- the mounting portion 18b and the injection nozzle 16 are unitized as the nozzle unit 104 so as to be removable from the dust removing device 10B.
- the usability of the dust removing device 10B is improved and the maintainability of the injection nozzle 16 is also improved.
- the dust removing device 10C includes a cylindrical body 122 (first cylindrical body) attached to the distal end portion 32 of the suction nozzle 18 so as to be movable along the outer peripheral surface 36 of the suction nozzle 18, a nozzle body 20, and a cylindrical body 122.
- a spring member 124 first spring member interposed between the plunger and the plunger provided in the compressed fluid supply portion 54 of the nozzle body 20 and extending toward the cylindrical body 122 along the central axis 30 (A direction) 126 (first plunger) is different from the dust removing device 10 of FIGS.
- the tip 42 of the injection nozzle 16 protrudes from the cylindrical body 122 in the A1 direction. Further, the cylindrical body 122 can contact the surface 88 of the workpiece 12 so as to surround the periphery of the hole 14. Further, an annular projecting portion 128 that extends radially inward toward the central axis 30 and contacts the distal end portion 32 side of the outer peripheral surface 36 of the suction nozzle 18 is formed on the A2 direction side of the cylindrical body 122. A spring member 124 is inserted between the protruding portion 128 and the tip portion 22 of the nozzle body 20.
- an annular projecting portion 130 that extends radially outward and contacts the inner peripheral surface of the cylindrical body 122 is formed at the distal end portion 32 of the suction nozzle 18. Therefore, the protrusion 128 can slide along the A direction within the range of the protrusion 130 and the suction nozzle side adjusting screw 38.
- the plunger 126 enters the inlet channel 56 in the compressed fluid supply unit 54, and a seal body 132 (first seal body) that can open and close the inlet channel 56 is attached to a base end portion of the plunger 126.
- the seal body 132 is disposed in a chamber 134 provided in the middle of the inlet channel 56, and a spring member 136 is interposed between the A2 direction side portion in the chamber 134 and the seal body 132. . Therefore, the seal body 132 is positioned in the A1 direction side in the chamber 134 by the pressing force acting by the elastic force of the spring member 136 or the pressure of the compressed fluid, or both the elastic force and the pressing force ( (Sitting position).
- FIG. 10 illustrates that the inlet channel 56 is closed by the seal body 132 as viewed from the external fluid supply source by pressing the seal body 132 to the seating position in the chamber 134. .
- the inlet channel 56 is closed by the seal body 132, so that the compressed fluid is supplied from the inlet channel 56 to the downstream side. I can't.
- the tip end portion 42 of the injection nozzle 16 is inserted into the hole 14 and the cylindrical body 122 contacts the surface 88 of the workpiece 12 to close the hole 14, the nozzle member 20 is pressed in the A1 direction, thereby spring members.
- the ejection nozzle 16, the suction nozzle 18 and the nozzle body 20 are displaced in the A1 direction as a whole against the elastic force of 124 (the spring member 124 contracts).
- the tip of the plunger 126 comes into contact with the cylindrical body 122.
- the plunger 126 receives a force in the A2 direction from the cylindrical body 122, and a pressing force due to the elastic force of the spring member 136 or the pressure of the compressed fluid, or the elastic force. Displaces in the A2 direction against both force and pressing force. As a result, the seal body 132 is separated from the seating position in the A2 direction in the chamber 134, and the inlet channel 56 is changed from the closed state to the open state.
- the supply of the first compressed fluid from the opened inlet channel 56 to the first fluid supply channel 80 is started, and the supply of the second compressed fluid to the second fluid supply channel 84 is started.
- the first compressed fluid is ejected from the ejection hole 48 and the dust adhering to the hole 14 is lifted, while the second compressed fluid discharged from the second fluid supply path 84 to the discharge path 72 is 1 Compressed fluid and dust can be sucked through the suction nozzle 18 and discharged from the discharge flow path 72 to the outside.
- the cylindrical body 122 is separated from the surface 88 of the workpiece 12.
- the nozzle body 20 is relatively separated from the cylindrical body 122 by the elastic force of the spring member 124.
- the plunger 126 is released from the pressed state from the cylindrical body 122 and is displaced in the A1 direction.
- the seal body 132 returns to the seating position by the pressing force due to the elastic force of the spring member 136 or the pressure of the compressed fluid, or both the elastic force and the pressing force, and closes the inlet flow path 56.
- the supply of the compressed fluid from the inlet channel 56 to the downstream side is stopped.
- the injection nozzle 16 is inserted into the hole 14, the cylindrical body 122 comes into contact with the surface 88 of the workpiece 12 to close the hole 14, and the plunger 126 is in contact with the cylindrical body 122.
- the inlet channel 56 By opening the inlet channel 56 by the movement of the seal body 132 due to the displacement of the first, the first compressed fluid and the second compressed fluid can be supplied.
- the supply of the first compressed fluid and the second compressed fluid is automatically started or stopped by opening and closing the inlet flow path 56 by the seal body 132 caused by the contact of the cylindrical body 122 with the workpiece 12.
- the dust removing device 10C of the third modified example can omit the control solenoid valve by including a mechanism such as the seal body 132 described above.
- a mechanism such as the seal body 132 described above.
- a dust removing device 10D according to a fourth modification will be described with reference to FIGS. 11 to 12B.
- the dust removing device 10D is different from the dust removing device 10 of FIGS. 1 and 2 in that a valve body 138 capable of opening and closing the injection hole 48 for injecting the first compressed fluid is provided at the tip portion 42 of the injection nozzle 16. .
- a disc member 142 having a plurality of holes 140 formed in the A direction is mounted on the inner peripheral surface of the injection nozzle 16 in the injection flow path 78 of the injection nozzle 16.
- a spring member 144 is interposed between the disc member 142 and the base end portion of the valve body 138.
- the valve body 138 closes the injection hole 48 by the pressing force due to the spring force of the spring member 144 or the pressure of the first compressed fluid, or both the spring force and the pressing force. Yes. Therefore, even when the first compressed fluid is supplied to the injection flow path 78 of the injection nozzle 16, the first compressed fluid cannot be injected from the injection hole 48.
- the second compressed fluid can be discharged to the discharge flow path 72 via the second fluid supply path 84. Therefore, in the dust removing device 10 ⁇ / b> D, it is possible to perform vacuum suction by discharging the second compressed fluid even when the first compressed fluid is not ejected from the ejection holes 48.
- the injection nozzle 16 when the injection nozzle 16 is inserted into the hole 14 and the tip of the valve body 138 comes into contact with the bottom 90 (see FIG. 11) of the hole 14, the elastic force of the spring member 144 or the pressing force due to the pressure of the first compressed fluid Alternatively, the valve body 138 moves in the A2 direction against both the elastic force and the pressing force. Thereby, as shown in FIG. 12B, the injection hole 48 is opened, and the first compressed fluid can be injected from the injection hole 48.
- valve body 138 when the front end of the valve body 138 is separated from the bottom 90 of the hole 14, the valve body is caused by the elastic force of the spring member 144 or the pressing force due to the pressure of the first compressed fluid, or both the elastic force and the pressing force. 138 moves in the A1 direction. Thereby, the state of FIG. 12B changes to the state of FIG. 12A, and the injection hole 48 is closed. As a result, the injection of the first compressed fluid from the injection hole 48 stops.
- the vacuum suction by the discharge of the second compressed fluid can be started before the injection of the first compressed fluid from the injection hole 48 is started.
- the dust adhering to the hole 14 can be prevented from being scattered to the outside, and the space where the dust is removed can be kept clean.
- the dust removing device 10E includes a cylindrical body 146 (second cylindrical body) attached to the distal end portion 32 of the suction nozzle 18 so as to be movable along the outer peripheral surface 36 of the suction nozzle 18, a nozzle body 20, and a cylindrical body 146.
- a spring member 148 (second spring member) interposed therebetween, and a plunger that is provided in the compressed fluid supply part 54 of the nozzle body 20 and extends toward the cylindrical body 146 along the central axis 30 (A direction). It differs from the dust removal apparatus 10 of FIG.1 and FIG.2 by the point further provided with 150 (2nd plunger).
- the arrangement configuration around the cylindrical body 146 and the spring member 148 is the same as the cylindrical body 122 and the spring member 124 (see FIG. 10) of the dust removing device 10C of the third modified example. That is, the tip end portion 42 of the injection nozzle 16 protrudes from the cylindrical body 146 in the A1 direction, and the cylindrical body 146 can contact the surface 88 of the work 12 so as to surround the hole 14.
- An annular projecting portion 152 is formed on the A2 direction side of the cylindrical body 146, and a spring member 148 is interposed between the projecting portion 152 and the tip end portion 22 of the nozzle body 20.
- annular projecting portion 154 is formed at the distal end portion 32 of the suction nozzle 18, and the projecting portion 152 slides along the A direction within the range between the projecting portion 154 and the suction nozzle side adjusting screw 38. Is possible.
- the plunger 150 enters the downstream side of the needle screw 66 in the flow channel 62 of the compressed fluid supply unit 54, and a seal body 156 that can open and close the flow channel 62 at the proximal end portion thereof.
- A second seal body
- the seal body 156 is disposed in a chamber 158 provided in the middle of the flow path 62, and a spring member 160 is interposed between the A2 direction side portion in the chamber 158 and the seal body 156. ing. Therefore, the seal body 156 is moved in the chamber 158 by the pressing force acting by the elastic force of the spring member 160 or the pressure of the first compressed fluid, or both the elastic force and the pressing force. It is pressed to the place (sitting position).
- FIG. 13 illustrates that the flow path 62 is closed by the seal body 156 when the seal body 156 is pressed against the seating position in the chamber 158.
- the flow path 62 is closed by the seal body 156, so that the first compressed fluid can be supplied from the flow path 62 to the injection nozzle 16. Can not.
- the second compressed fluid can be discharged to the discharge flow path 72 via the second fluid supply path 84. Therefore, the dust removing device 10E can perform vacuum suction by discharging the second compressed fluid even when the first compressed fluid is not supplied to the injection nozzle 16.
- the tip end portion 42 of the injection nozzle 16 When the tip end portion 42 of the injection nozzle 16 is inserted into the hole 14 in this state, and the cylindrical body 146 contacts the surface 88 of the workpiece 12 to close the hole 14, the nozzle member 20 is pressed in the A1 direction.
- the jet nozzle 16, the suction nozzle 18 and the nozzle body 20 are displaced in the A1 direction as a whole against the elastic force of 148 (the spring member 148 contracts).
- the tip of the plunger 150 comes into contact with the cylindrical body 146.
- the plunger 150 receives a force in the A2 direction from the cylindrical body 146, and a pressing force acting by the elastic force of the spring member 160 or the pressure of the first compressed fluid, Or, it is displaced in the A2 direction against both the elastic force and the pressing force.
- the seal body 156 is separated from the seating position in the A2 direction in the chamber 158, and changes the flow path 62 from the closed state to the open state.
- the cylinder 146 is separated from the surface 88 of the workpiece 12.
- the nozzle body 20 is relatively separated from the cylindrical body 146 by the elastic force of the spring member 148.
- the plunger 150 is released from the pressed state from the cylindrical body 146 and is displaced in the A1 direction.
- the seal body 156 returns to the seating position by the pressing force acting by the elastic force of the spring member 160 or the pressure of the first compressed fluid, or by both the elastic force and the pressing force, and the flow path 62 is made to flow. Block.
- the supply of the first compressed fluid from the flow path 62 to the injection nozzle 16 is stopped.
- the first compressed fluid from the injection hole 48 to the hole 14 is started by the opening of the flow path 62 of the first fluid supply path 80 by the seal body 156, the first 2. Vacuum suction is started by releasing the compressed fluid. As a result, it is possible to prevent dust adhering to the hole 14 from being scattered outside before starting the vacuum suction, and it is possible to keep the space where the dust removal operation is performed clean.
- a dust removing device 10F according to a sixth modification will be described with reference to FIGS.
- the dust removing device 10F protrudes from the nozzle body 20 and / or the suction nozzle 18 toward the work 12, and when the spray nozzle 16 is inserted into the hole 14, before the spray nozzle 16 contacts the bottom 90 of the hole 14, the work 12 is different from the dust removing device 10 of FIGS. 1 and 2 in that it further includes a cylindrical portion 161 that contacts the surface 88 of the twelve.
- the cylindrical portion 161 includes a first cylindrical member 162 attached to the distal end portion 22 of the nozzle body 20, and the distal end portion of the suction nozzle 18 via the spring member 164 inside the first cylindrical member 162. And a second cylindrical member 166 attached to 32.
- the tip end portion in the A1 direction of the first cylindrical member 162 extends radially inward toward the central axis 30 and is in contact with the step portion in the A1 direction of the second cylindrical member 166.
- the second cylindrical member 166 is urged toward the distal end portion of the first cylindrical member 162 by the elastic force of the spring member 164. Further, the tip of the second cylindrical member 166 protrudes in the A1 direction from the tip of the first cylindrical member 162.
- the second cylindrical member 166 when the dust removing device 10F is moved in the A1 direction with the tip portion 42 of the injection nozzle 16 inserted into the hole 14, the second cylindrical member 166 is brought into contact with the bottom portion 90 of the hole 14 before the tip portion 42 contacts the bottom portion 90 of the hole 14. The tip of the abutment abuts around the hole 14 in the surface 88 of the workpiece 12.
- the second cylindrical member 166 receives a force in the A2 direction from the workpiece 12, and is displaced in the A2 direction against the elastic force of the spring member 164.
- the cylindrical portion 161 is brought into contact with the surface 88 of the workpiece 12 with the tips of the first cylindrical member 162 and the second cylindrical member 166 being substantially flush without bringing the tip portion 42 into contact with the bottom 90 of the hole 14. Can abut.
- the front end portion 42 of the injection nozzle 16 is not in the hole 14 before the front end portion 32 of the suction nozzle 18 contacts the surface 88 of the workpiece 12. It is possible to prevent the dust from being inhaled by contacting the bottom 90. As a result, even if there is a difference in the depth of the hole 14, the tip end portion 32 of the suction nozzle 18 can be indirectly brought into contact with the surface 88 of the workpiece 12 through the cylindrical portion 161 to close the hole 14. It becomes possible.
- the elastic body 167 provided at the tip portion 22 of the nozzle body 20 and the tip portion 32 of the suction nozzle 18 is a cylindrical portion 161.
- the front end portion 42 of the injection nozzle 16 has a hole before the front end portion 32 of the suction nozzle 18 contacts the surface 88 of the workpiece 12. It is possible to prevent the dust from being inhaled by contacting the bottom portion 90 of the 14. Further, even if there is a difference in the depth of the hole 14, the tip end portion 32 of the suction nozzle 18 can be indirectly brought into contact with the surface 88 of the work 12 via the elastic body 167 to close the hole 14. Become.
- the elastic body 167 sponge rubber is suitable, for example.
- a closed-cell sponge rubber is employed as the elastic body 167, the sealing performance and cushioning performance against the surface 88 of the workpiece 12 can be ensured, and the spring back function can be suitably exhibited.
- FIG. 16 illustrates a case where the bellows 168 provided at the tip portion 22 of the nozzle body 20 and formed by an elastomer such as rubber is a cylindrical portion 161.
- the tip of the injection nozzle 16 is caused before the tip 32 of the suction nozzle 18 contacts the surface 88 of the workpiece 12 due to the depth of the hole 14. It is possible to prevent 42 from coming into contact with the bottom 90 of the hole 14 so that dust cannot be sucked. Even if the depth of the hole 14 is different, the tip end portion 32 of the suction nozzle 18 can be indirectly brought into contact with the surface 88 of the work 12 via the bellows 168 to close the hole 14. .
- the bellows 168 is formed of an elastomer such as rubber, the sealing performance and cushioning performance for the surface 88 of the work 12 can be ensured, and the springback function can be suitably exhibited. .
- a dust removing device 10G according to a seventh modification will be described with reference to FIG.
- the dust removing device 10G is different from the dust removing device 10 in FIGS. 1 and 2 in that a dust detecting means 170 for detecting the passage of dust is provided on the discharge flow path 72 side of the nozzle body 20.
- the dust detection unit 170 receives, for example, a light emitting element 174 such as a light emitting diode that emits light 172 along the radial direction, and a light 172 emitted by the light emitting element 174, and converts the received light 172 into an electric signal. It is comprised from the signal processing apparatus 178 which determines the presence or absence of the passage of dust by processing the conversion element 176 and the electric signal output from the photoelectric conversion element 176. In this case, if the signal processing device 178 can determine that the dust has not passed, it can be easily confirmed that the dust has been removed from the hole 14.
- a light emitting element 174 such as a light emitting diode that emits light 172 along the radial direction
- a light 172 emitted by the light emitting element 174 converts the received light 172 into an electric signal. It is comprised from the signal processing apparatus 178 which determines the presence or absence of the passage of dust by processing the conversion element 176 and the electric signal output from the photo
- the fluid supply source When a notification signal indicating that the dust removal operation is completed is output from the signal processing device 178, the fluid supply source immediately stops the supply of the compressed fluid to the dust removal device 10G based on the notification signal. It becomes possible. Thus, since the dust detection means 170 quantitatively determines the completion of the dust removal operation, use of the determination result can suppress wasteful consumption of the compressed fluid.
- the dust detection means 170 is an optical detection mechanism.
- the present invention is not limited to the above description, and it is needless to say that any detection method detecting means can be adopted as long as the passage of dust can be detected.
- a dust removing device 10H according to an eighth modification will be described with reference to FIGS. 18 and 19.
- a plurality of dust removing devices 10H having substantially the same configuration as the dust removing device 10 in FIGS. 1 and 2 are connected to form a manifold. That is, as shown in FIGS. 18 and 19, a plurality of dust removing devices 10H are connected to a compressed fluid supply block 180 in which individual compressed fluid supply units 54 are made common, and a side surface of the compressed fluid supply block 180 has an external A common supply port 182 for supplying compressed fluid (pressurized air) from the fluid supply source is provided.
- each dust removing device 10H is formed along the radial direction of the dust removing device 10H.
- the dust removal system 184H which has the several dust removal apparatus 10H is comprised.
- the flow path 62 communicates with the outside through a hole 186 formed in the A2 direction, but this hole 186 is blocked by a sphere 188. It is.
- the dust removal system 184H provided with the dust removal device 10H can be made compact by manifolding the plurality of dust removal devices 10H and sharing the compressed fluid.
- the injection nozzles 16 are inserted into the plurality of holes 14 having a relatively narrow pitch formed in the workpiece 12, and the dust removing operation attached to the holes 14 is simultaneously performed. Can be done. Therefore, in the eighth modified example, dust can be efficiently removed from the workpiece 12 in which the plurality of holes 14 are formed.
- the plurality of dust removal devices 10H include the nozzle body side adjustment screw 28, the suction nozzle side adjustment screw 38, and the needle screw 66.
- the compressed fluid is sequentially supplied to the individual supply ports (inlet flow paths 56) in the respective dust removing devices 10H, thereby ejecting the second compressed fluid and generating vacuum suction first.
- the first compressed fluid can be ejected from the ejection hole 48 of the ejection nozzle 16. . Even in this case, the dust can be prevented from being scattered outside during the dust removing operation.
- each dust removing device 10H includes the nozzle body side adjustment screw 28, the suction nozzle side adjustment screw 38, and the needle screw 66, so that vacuum suction is generated first, and then the hole 14 It is possible to supply the first compressed fluid and the second compressed fluid with a time difference in which the tip portion 42 of the injection nozzle 16 is inserted into the first nozzle and the first compressed fluid is injected.
- a dust removing device 10I and a dust removing system 184I according to a ninth modification will be described with reference to FIGS.
- the ninth modified example when holes 14 are formed at various positions in the workpiece 12 having a complicated shape, a case where removal work is simultaneously performed on dust in the holes 14 is illustrated. .
- the work 12 is formed with a plurality of holes 14 that are bag holes of different positions and orientations. That is, among the surface 88 of the workpiece 12, for example, a plurality of holes 14 having the same hole diameter and depth are formed at equal pitches on the upper surface and the slopes connected to the upper surface.
- the dust removal system 184 ⁇ / b> I prepares a plurality of dust removal blocks 190 that are manifolded by connecting a plurality of dust removal devices 10 ⁇ / b> I at equal intervals in the longitudinal direction of the compressed fluid supply block 180.
- This is different from the dust removal system 184H (see FIGS. 18 and 19) of the eighth modification.
- the plurality of dust removal devices 10I are compressed by the injection nozzle 16 in a direction perpendicular to the longitudinal direction of the compressed fluid supply block 180.
- the fluid supply block 180 is attached.
- each dust removing device 10I a cylindrical closing member 192 is attached to the distal end portion 32 of the suction nozzle 18.
- the closing member 192 of each dust removing device 10I is set to the same length, and the injection nozzle 16 is set to the same protruding amount.
- a dust removal block 190 (the dust removal device 10I) for performing dust removal work is assigned to the plurality of holes 14 in advance.
- each dust removal block 190 was previously allocated, without interfering, using moving means, such as a robot arm which is not shown in figure.
- the tip end portion 42 of the injection nozzle 16 can be inserted into the hole 14, and the portion around the hole 14 on the surface 88 can be blocked by the blocking member 192.
- the injection nozzles 16 are inserted into all the holes 14 to be removed, the compressed fluid is supplied from the respective compressed fluid supply blocks 180 to the respective dust removing devices 10I. It becomes possible to carry out the dust removing operation on the same.
- the dust removal system 184I has a plurality of dust removal blocks 190 in which a plurality of dust removal devices 10I are connected by the compressed fluid supply block 180.
- each dust removing device 10I is fixed at a predetermined interval along the longitudinal direction of the compressed fluid supply block 180 so that the extending directions of the injection nozzles 16 are the same as each other. .
- the tip end portion 42 of the spray nozzle 16 of each dust removing device 10I is inserted into each hole 14, respectively. Since dust can be removed at the same time, the removal can be performed more efficiently.
- each dust removing device 10I is further provided with a closing member 192 that closes the surface 88 of the work 12 around the hole 14 when the tip portion 42 of the injection nozzle 16 is inserted into the hole 14. ing. Thereby, the dust removing operation can be performed without leaking the dust and the first compressed fluid to the outside during the dust removing operation.
- a dust removing device 10J and a dust removing system 184J according to a tenth modification will be described with reference to FIG.
- the dust removing device 10J and the dust removing system 184J are different in the following points.
- an attachment position adjusting mechanism 194 capable of adjusting the attachment height (attachment position) of the dust removing device 10J with respect to the compressed fluid supply block 180 is provided.
- the attachment position adjusting mechanism 194 is provided for each dust removing device 10J in the compressed fluid supply block 180.
- the attachment position adjustment mechanism 194 is inserted into the two oval adjustment holes 196 formed along the A direction so as to face the dust removal device 10J, and is screwed into the dust removal device 10J through the adjustment holes 196.
- the dust removing device 10J is configured with a position adjusting screw 198 for fixing the dust removing device 10J to the compressed fluid supply block 180.
- the adjustment hole 196 is formed along the direction A, by inserting the position adjustment screw 198 at an arbitrary height position of the adjustment hole 196 and screwing it with the dust removing device 10J, The dust removing device 10J can be adjusted to an arbitrary height position and fixed to the compressed fluid supply block 180 within the range of the length along the A direction of the adjustment hole 196.
- the attachment position adjusting mechanism 194 is provided in the compressed fluid supply block 180 so as to face the dust removing device 10J, the needle screw 66 is provided on the upper surface of the compressed fluid supply block 180.
- the tip end portion 42 of the injection nozzle 16 is inserted into each hole 14 and the dust is removed simultaneously in each hole 14. Work efficiency can be improved. Further, in the tenth modification, when a plurality of holes 14 having different depths are formed in the work 12, the mounting position in the compressed fluid supply block 180 is adjusted by the mounting position adjusting mechanism 194 for each dust removing device 10J. Thus, when the tip portion 42 of the injection nozzle 16 is inserted into the hole 14, the tip portion 42 can be inserted to an appropriate depth, and dust can be removed.
- FIGS. 24 and 25 are a perspective view and a cross-sectional view illustrating an example of the workpiece 12, respectively.
- This work 12 is a box-shaped housing without an upper lid, and a plurality of holes 14 having different hole diameters and depths are formed at different positions at the upper end.
- the dust removing device 10K and the dust removing system 184K differ from the eighth to tenth modified examples (see FIGS. 18 to 23) in the following points.
- the tip portion 42 of the injection nozzle 16 is configured to be replaceable with respect to the nozzle main body portion 46. That is, in the eleventh modification, the tip portion 42 can be replaced with an appropriate one according to the hole 14 having a different hole diameter and depth, the type of dust, or the like.
- the dust removing devices 10K have the same configuration except for the tip 42.
- each tip 42 has a different diameter according to the hole diameter, a different length according to the depth of the hole 14, and the volume and dust in the hole 14.
- the size of the injection hole 48 is set to be different depending on the type and the like.
- the nozzle body 20 and the suction nozzle 18 are provided with a cylindrical portion 161.
- the cylindrical portion 161 contacts the surface 88 of the workpiece 12 before the tip end portion 42 of the injection nozzle 16 contacts the bottom 90 of the hole 14.
- FIG. 26 illustrates a case where the cylindrical portion 161 of FIG. 14 is attached to the dust removing device 10K.
- the injection nozzle 16 has the same configuration as the first modification (see FIGS. 3A to 8C).
- the tip portion 42 is configured to be replaceable, and an appropriate tip portion 42 is attached to the injection nozzle 16, so that when the tip portion 42 of the injection nozzle 16 is inserted into the hole 14, the tip portion 42 has an appropriate depth. Until the dust is removed.
- the tip end portion 42 of the injection nozzle 16 is changed. Before reaching the bottom 90 of the hole 14, a portion around the hole 14 on the surface 88 of the workpiece 12 can be suitably closed.
- the tip part 42 of the injection nozzle 16 is inserted in each hole 14, respectively, and dust removal work is simultaneously performed on each hole 14, thereby increasing the efficiency of the removal work. Can be achieved. Further, when a plurality of holes 14 having different hole diameters, depths, and formation positions are formed in the work 12, the tip portion 42 of the injection nozzle 16 is inserted to an appropriate depth, and the periphery of the hole 14 is cylindrical. By closing with the shape part 161, the dust removal operation can be efficiently performed without leaking the dust and the first compressed fluid to the outside.
- the tip 42 is replaceable, an appropriate tip 42 is attached to the injection nozzle 16 according to the size, depth and formation position of the hole 14 and the type of dust. As a result, the usability is improved and the maintainability of the injection nozzle 16 is also improved.
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Abstract
Description
図1及び図2は、本実施形態に係る粉塵除去装置10の断面図である。
以上のように構成される本実施形態に係る粉塵除去装置10の動作について説明する。
以上説明したように、本実施形態に係る粉塵除去装置10によれば、噴射ノズル16及び吸引ノズル18を備えた粉塵除去装置10自体に、第1圧縮流体の流量(噴射流量)を調整するニードルネジ66と、第2圧縮流体の流量(吸引流量)を調整するノズル本体側調整ねじ28及び吸引ノズル側調整ねじ38とが備わっている。これにより、噴射ノズル16から穴14に噴射する第1圧縮流体の噴射流量と、第2圧縮流体の放出による真空吸引によって吸引ノズル18からノズル本体20を介して粉塵及び第1圧縮流体を排出するための第2圧縮流体の吸引流量とを適切な流量に調整することができる。この結果、穴14に付着する粉塵を効率よく除去することが可能になる。
次に、本実施形態に係る粉塵除去装置10の変形例(第1~第11変形例)について、図3A~図26を参照しながら説明する。なお、第1~第11変形例の説明において、図1及び図2の粉塵除去装置10と同じ構成要素については、同じ参照符号を付けて詳細な説明を省略する。
第1変形例の粉塵除去装置10Aについて、図3A~図8Cを参照しながら説明する。粉塵除去装置10Aは、噴射ノズル16の先端部42が交換可能に構成されている点で、図1及び図2の粉塵除去装置10とは異なる。
第2変形例の粉塵除去装置10Bについて、図9を参照しながら説明する。粉塵除去装置10Bは、噴射ノズル16と吸引ノズル18の一部とが、粉塵除去装置10Bから取り外し可能なノズルユニット104としてユニット化されている点で、図1及び図2の粉塵除去装置10とは異なる。
第3変形例の粉塵除去装置10Cについて、図10を参照しながら説明する。粉塵除去装置10Cは、吸引ノズル18の外周面36に沿って移動可能に該吸引ノズル18の先端部32に取り付けられた筒体122(第1筒体)と、ノズル本体20と筒体122との間に介挿されたばね部材124(第1ばね部材)と、ノズル本体20の圧縮流体供給部54に設けられ且つ中心軸30(A方向)に沿って筒体122に向かって延在するプランジャ126(第1プランジャ)とをさらに備える点で、図1及び図2の粉塵除去装置10とは異なる。
第4変形例の粉塵除去装置10Dについて、図11~図12Bを参照しながら説明する。粉塵除去装置10Dは、噴射ノズル16の先端部42に第1圧縮流体を噴射する噴射孔48を開閉可能な弁体138を設けた点で、図1及び図2の粉塵除去装置10とは異なる。
第5変形例の粉塵除去装置10Eについて、図13を参照しながら説明する。粉塵除去装置10Eは、吸引ノズル18の外周面36に沿って移動可能に該吸引ノズル18の先端部32に取り付けられた筒体146(第2筒体)と、ノズル本体20と筒体146との間に介挿されたばね部材148(第2ばね部材)と、ノズル本体20の圧縮流体供給部54に設けられ且つ中心軸30(A方向)に沿って筒体146に向かって延在するプランジャ150(第2プランジャ)とをさらに備える点で、図1及び図2の粉塵除去装置10とは異なる。
第6変形例の粉塵除去装置10Fについて、図14~図16を参照しながら説明する。粉塵除去装置10Fは、ノズル本体20及び/又は吸引ノズル18からワーク12に向かって突出し、噴射ノズル16を穴14に挿入した際、噴射ノズル16が穴14の底部90に接触する前に、ワーク12の表面88に接触する筒状部161をさらに備える点で、図1及び図2の粉塵除去装置10とは異なる。
第7変形例の粉塵除去装置10Gについて、図17を参照しながら説明する。粉塵除去装置10Gは、ノズル本体20の排出流路72側に粉塵の通過を検出する粉塵検出手段170を設けた点で、図1及び図2の粉塵除去装置10とは異なる。
第8変形例の粉塵除去装置10Hについて、図18及び図19を参照しながら説明する。第8変形例では、図1及び図2の粉塵除去装置10と略同じ構成の複数個の粉塵除去装置10Hを連設することにより、マニホールド化したものである。すなわち、図18及び図19に示すように、個々の圧縮流体供給部54を共通化した圧縮流体供給ブロック180に複数の粉塵除去装置10Hが連結され、圧縮流体供給ブロック180の側面には、外部の流体供給源から圧縮流体(加圧エア)を供給するための共通供給ポート182が設けられている。また、各粉塵除去装置10Hのニードルネジ66は、粉塵除去装置10Hの径方向に沿って形成されている。これにより、複数の粉塵除去装置10Hを有する粉塵除去システム184Hが構成される。なお、図19に示すように、圧縮流体供給ブロック180において、流路62は、A2方向に形成された孔186を介して外部に連通しているが、この孔186は、球体188によって塞がれている。
第9変形例の粉塵除去装置10I及び粉塵除去システム184Iについて、図20~図22を参照しながら説明する。第9変形例では、複雑な形状のワーク12において、様々な位置に穴14が形成されている場合に、これらの穴14内の粉塵に対して同時に除去作業を行う場合を図示したものである。
第10変形例の粉塵除去装置10J及び粉塵除去システム184Jについて、図23を参照しながら説明する。第10変形例では、ワーク12に深さの異なる穴14が複数形成されている場合に、これらの穴14内の粉塵に対して同時に除去作業を行える構成を意図している。従って、第9変形例と比較して、粉塵除去装置10J及び粉塵除去システム184Jは、下記の点で異なる。
第11変形例の粉塵除去装置10K及び粉塵除去システム184Kについて、図24~図26を参照しながら説明する。第11変形例は、ワーク12における様々な高さ位置(形成位置)に穴径及び深さの異なる穴14が形成されている場合に、これらの穴14内の粉塵に対して同時に除去作業を行う場合を意図している。
Claims (17)
- 対象物(12)の穴(14)に噴射ノズル(16)を挿入し、該噴射ノズル(16)を囲繞する吸引ノズル(18)によって前記穴(14)を閉塞した状態で前記噴射ノズル(16)から前記穴(14)に圧縮流体を噴射する一方で、前記穴(14)に付着した粉塵及び前記圧縮流体を前記吸引ノズル(18)で吸引する粉塵除去装置(10、10A~10K)において、
前記噴射ノズル(16)及び前記吸引ノズル(18)が連結され且つ該吸引ノズル(18)で吸引された前記粉塵及び前記圧縮流体を外部に排出する中空状のノズル本体(20)と、前記噴射ノズル(16)から噴射される前記圧縮流体の流量を調整する噴射量調整部(66)と、前記吸引ノズル(18)で吸引される前記粉塵及び前記圧縮流体の量を調整する吸引量調整部(28、38)とを備え、
前記ノズル本体(20)には、外部から供給される圧縮流体の一部を第1圧縮流体として前記噴射ノズル(16)に供給し噴射させる第1流体供給路(80)と、外部から供給される圧縮流体の他の一部を第2圧縮流体として前記ノズル本体(20)における前記粉塵及び前記第1圧縮流体の排出方向の下流側に放出する第2流体供給路(84)とが形成され、
前記排出方向の下流側への前記第2圧縮流体の放出によって、前記粉塵及び前記第1圧縮流体が前記吸引ノズル(18)及び前記ノズル本体(20)を介して外部に排出され、
前記噴射量調整部(66)は、前記第1流体供給路(80)の流路面積を調整することにより、前記噴射ノズル(16)から噴射される前記第1圧縮流体の流量を調整し、
前記吸引量調整部(28、38)は、前記第2流体供給路(84)の流路面積を調整して、前記排出方向の下流側に放出される前記第2圧縮流体の流量を調整することにより、前記吸引ノズル(18)で吸引される前記粉塵及び前記圧縮流体の量を調整することを特徴とする粉塵除去装置(10、10A~10K)。 - 請求項1記載の粉塵除去装置(10、10A~10K)において、
前記噴射ノズル(16)の基端部(40)は、前記吸引ノズル(18)に固定され、
前記吸引ノズル(18)は、前記ノズル本体(20)の軸方向に沿って移動可能に該ノズル本体(20)の内周面(26)に装着され、
前記第2流体供給路(84)は、前記吸引ノズル(18)の基端部(34)と、前記ノズル本体(20)の内周面(26)との間に形成された隙間(82)であり、
前記吸引量調整部(28、38)は、前記ノズル本体(20)の内周面(26)に対して前記吸引ノズル(18)を前記軸方向に移動させて前記隙間(82)の開度を調整することにより、前記第2圧縮流体の流量を調整することを特徴とする粉塵除去装置(10、10A~10K)。 - 請求項2記載の粉塵除去装置(10、10A~10K)において、
前記噴射量調整部(66)は、前記ノズル本体(20)に設けられた、前記第1流体供給路(80)を絞るニードルネジであり、
前記吸引量調整部(28、38)は、前記吸引ノズル(18)の外周面(36)と前記ノズル本体(20)の内周面(26)とにそれぞれ形成され、互いに螺合する調整ねじであることを特徴とする粉塵除去装置(10、10A~10K)。 - 請求項1記載の粉塵除去装置(10A、10K)において、
前記噴射ノズル(16)の先端部(42)における外周面及び/又は先端面には、前記第1圧縮流体を噴射する噴射孔(48)が形成され、
前記噴射ノズル(16)の先端部(42)は、交換可能に構成されていることを特徴とする粉塵除去装置(10A、10K)。 - 請求項4記載の粉塵除去装置(10A、10K)において、
前記噴射孔(48)は、前記噴射ノズル(16)の軸方向に沿って形成されているか、前記噴射ノズル(16)の径方向に沿って形成されているか、及び/又は、前記径方向に対して所定角度傾けた状態に形成されていることを特徴とする粉塵除去装置(10A、10K)。 - 請求項5記載の粉塵除去装置(10A)において、
前記噴射ノズル(16)の先端部(42)は、該噴射ノズル(16)に連結される内筒部(42a)と、前記噴射ノズル(16)の中心軸(30)を中心に回転可能に前記内筒部(42a)に装着された外筒部(42b)とから構成され、
前記内筒部(42a)には、前記径方向に内側噴射孔(48a)が形成され、
前記外筒部(42b)には、前記径方向に対して所定角度傾けた状態で外側噴射孔(48b)が形成されていることを特徴とする粉塵除去装置(10A)。 - 請求項1記載の粉塵除去装置(10B)において、
前記吸引ノズル(18)は、前記ノズル本体(20)に装着される筒状の装着部(18a)と、該装着部(18a)に対して取り外し可能であり且つ前記噴射ノズル(16)の基端部(40)が取り付けられる筒状の取付部(18b)とから構成され、
前記取付部(18b)の外周面には突起(112)が形成され、
前記装着部(18a)には、該装着部(18a)の内方に突出して前記突起(112)を係止する係止部(120)が設けられていることを特徴とする粉塵除去装置(10B)。 - 請求項1記載の粉塵除去装置(10C)において、
前記吸引ノズル(18)の外周面(36)に沿って移動可能に該吸引ノズル(18)の先端部(32)に取り付けられた第1筒体(122)と、前記ノズル本体(20)と前記第1筒体(122)との間に介挿された第1ばね部材(124)と、前記ノズル本体(20)に設けられ且つ該ノズル本体(20)の軸方向に沿って前記第1筒体(122)に向かって延在する第1プランジャ(126)とをさらに備え、
前記ノズル本体(20)には、外部から供給される前記圧縮流体を前記第1流体供給路(80)及び前記第2流体供給路(84)に供給する入口流路(56)がさらに形成され、
前記第1プランジャ(126)の基端部には、前記入口流路(56)を開閉可能な第1シール体(132)が取り付けられ、
前記第1筒体(122)が前記対象物(12)に接触し、前記第1ばね部材(124)の弾発力に抗して前記ノズル本体(20)が前記対象物(12)側に移動することにより前記第1プランジャ(126)が前記第1筒体(122)に当接した場合、前記ノズル本体(20)の前記対象物(12)側への移動に伴う前記第1プランジャ(126)の前記軸方向への変位によって、前記第1シール体(132)は、前記入口流路(56)を開放し、
一方で、前記第1筒体(122)が前記対象物(12)から離間し、前記第1ばね部材(124)の弾発力によって前記ノズル本体(20)が前記第1筒体(122)から相対的に離間した場合、前記第1プランジャ(126)の前記軸方向への変位によって、前記第1シール体(132)は、前記入口流路(56)を閉じることを特徴とする粉塵除去装置(10C)。 - 請求項1記載の粉塵除去装置(10D)において、
前記噴射ノズル(16)の先端には、噴射孔(48)を閉塞する弁体(138)が設けられ、
前記噴射ノズル(16)が前記穴(14)に挿入され、前記弁体(138)が前記穴(14)の底部(90)に接触して該弁体(138)が前記噴射ノズル(16)の軸方向に変位することにより、前記噴射孔(48)が開き、該噴射孔(48)から前記第1圧縮流体が噴射されることを特徴とする粉塵除去装置(10D)。 - 請求項1記載の粉塵除去装置(10E)において、
前記吸引ノズル(18)の外周面(36)に沿って移動可能に該吸引ノズル(18)の先端部(32)に取り付けられた第2筒体(146)と、前記ノズル本体(20)と前記第2筒体(146)との間に介挿された第2ばね部材(148)と、前記ノズル本体(20)に設けられ且つ該ノズル本体(20)の軸方向に沿って前記第2筒体(146)に向かって延在する第2プランジャ(150)とをさらに備え、
前記第2プランジャ(150)の基端部には、前記第1流体供給路(80)を開閉可能な第2シール体(156)が取り付けられ、
前記第2筒体(146)が前記対象物(12)に接触し、前記第2ばね部材(148)の弾発力に抗して前記ノズル本体(20)が前記対象物(12)側に移動することにより前記第2プランジャ(150)が前記第2筒体(146)に当接した場合、前記ノズル本体(20)の前記対象物(12)側への移動に伴う前記第2プランジャ(150)の前記軸方向への変位によって、前記第2シール体(156)は、前記第1流体供給路(80)を開放し、
一方で、前記第2筒体(146)が前記対象物(12)から離間し、前記第2ばね部材(148)の弾発力によって前記ノズル本体(20)が前記第2筒体(146)から相対的に離間した場合、前記第2プランジャ(150)の前記軸方向への変位によって、前記第2シール体(156)は、前記第1流体供給路(80)を閉じることを特徴とする粉塵除去装置(10E)。 - 請求項1記載の粉塵除去装置(10F、10K)において、
前記ノズル本体(20)及び/又は前記吸引ノズル(18)から前記対象物(12)に向かって突出し、前記噴射ノズル(16)を前記穴(14)に挿入した際、前記噴射ノズル(16)が前記穴(14)の底部(90)に接触する前に、前記対象物(12)の表面(88)に接触する筒状部(161)をさらに備えることを特徴とする粉塵除去装置(10F、10K)。 - 請求項11記載の粉塵除去装置(10F、10K)において、
前記筒状部(161)は、前記対象物(12)から離間した際にスプリングバック機能によって該対象物(12)との接触前の位置に復帰することを特徴とする粉塵除去装置(10F、10K)。 - 請求項1記載の粉塵除去装置(10G)において、
前記ノズル本体(20)内における前記粉塵の通過を検出する粉塵検出手段(170)をさらに備えることを特徴とする粉塵除去装置(10G)。 - 請求項1記載の粉塵除去装置(10I)において、
前記吸引ノズル(18)に対して交換可能に装着され、前記穴(14)に前記噴射ノズル(16)を挿入する際に、前記対象物(12)の表面(88)における前記穴(14)の周辺を閉塞する閉塞部材(192)をさらに備えることを特徴とする粉塵除去装置(10I)。 - 請求項1記載の複数個の粉塵除去装置(10H~10K)と、
前記各粉塵除去装置(10H~10K)を連結固定すると共に、該各粉塵除去装置(10H~10K)に前記圧縮流体を供給する圧縮流体供給ブロック(180)と、
を有することを特徴とする粉塵除去システム(184H~184K)。 - 請求項15記載の粉塵除去システム(184H~184K)において、
前記各粉塵除去装置(10H~10K)は、前記噴射ノズル(16)の延在方向が互いに同じ方向となるように、前記圧縮流体供給ブロック(180)の長手方向に沿った所定間隔で固定されていることを特徴とする粉塵除去システム(184H~184K)。 - 請求項15記載の粉塵除去システム(184J)において、
前記圧縮流体供給ブロック(180)には、前記各粉塵除去装置(10J)の取付位置を調整するための取付位置調整機構(194)が該各粉塵除去装置(10J)毎に設けられていることを特徴とする粉塵除去システム(184J)。
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US16/346,993 US11266280B2 (en) | 2016-11-04 | 2017-04-06 | Dust removing device and dust removing system |
EP17867411.5A EP3536408A4 (en) | 2016-11-04 | 2017-04-06 | DUST REMOVAL AND DUST REMOVAL SYSTEM |
KR1020197016042A KR102227245B1 (ko) | 2016-11-04 | 2017-04-06 | 분진 제거 장치 및 분진 제거 시스템 |
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CN201780067087.6A CN109890521B (zh) | 2016-11-04 | 2017-04-06 | 粉尘去除装置和粉尘去除系统 |
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CN112605060B (zh) * | 2020-12-22 | 2022-09-06 | 武汉泛洲中越合金有限公司 | 手柄系统顶杆座产品内凹槽铜屑清除装置 |
CN112792046A (zh) * | 2020-12-28 | 2021-05-14 | 四川航天神坤科技有限公司 | 一种盲孔工件除尘装置 |
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CN118559488A (zh) * | 2024-08-05 | 2024-08-30 | 上海诺倬力机电科技有限公司 | 机床除尘系统及机床 |
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CN109890521A (zh) | 2019-06-14 |
MX2019007543A (es) | 2019-08-22 |
TW201817500A (zh) | 2018-05-16 |
EP3536408A1 (en) | 2019-09-11 |
RU2719168C9 (ru) | 2021-11-19 |
KR102227245B1 (ko) | 2021-03-12 |
US11266280B2 (en) | 2022-03-08 |
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JP6562312B2 (ja) | 2019-08-21 |
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