WO2018072464A1 - Ensemble lame d'air et dispositif de séchage - Google Patents

Ensemble lame d'air et dispositif de séchage Download PDF

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Publication number
WO2018072464A1
WO2018072464A1 PCT/CN2017/088973 CN2017088973W WO2018072464A1 WO 2018072464 A1 WO2018072464 A1 WO 2018072464A1 CN 2017088973 W CN2017088973 W CN 2017088973W WO 2018072464 A1 WO2018072464 A1 WO 2018072464A1
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WO
WIPO (PCT)
Prior art keywords
air
duct
tube
inner tube
knife assembly
Prior art date
Application number
PCT/CN2017/088973
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English (en)
Chinese (zh)
Inventor
陈德和
Original Assignee
东莞宇宙电路板设备有限公司
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Filing date
Publication date
Application filed by 东莞宇宙电路板设备有限公司 filed Critical 东莞宇宙电路板设备有限公司
Publication of WO2018072464A1 publication Critical patent/WO2018072464A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/02—Applications of driving mechanisms, not covered by another subclass

Definitions

  • the present disclosure relates to the field of circuit board plating, for example, to an air knife assembly and a drying device.
  • the electroplating process of the circuit board involves multiple processes for surface treatment of the circuit board, such as spray cleaning, air drying, electroplating, and the like.
  • the circuit board is dried by a drying device, and the fan provides high-speed flowing air, and the circuit board is dried by jetting air through the air knife.
  • the air knife assembly comprises two air knives arranged side by side. The air knives are provided with air nozzles, which are transmitted through the conveying mechanism to pass between the circuit board and the air knife, and the air nozzles spray air to dry the circuit board.
  • a limit object such as a roller, a guide plate, or the like is usually disposed on a travel route of the circuit board, and the air nozzle ejects air from the gap between the limit objects to the circuit board.
  • the above-mentioned improvement additionally adds a part of the structure, which makes the drying device more complicated, increases the production cost, and cannot fundamentally solve the problem that the circuit board is shaken back and forth.
  • the present disclosure provides a wind blade assembly in which a circuit board transmits smoothly, which solves the problem of shaking back and forth when a circuit board is transmitted in the related art.
  • the present disclosure provides an air knife assembly including a first duct and a second duct disposed vertically and side by side, and a fan for supplying flowing air to the first duct and the second duct;
  • a gap between the first air duct and the second air duct is provided for the circuit board to pass through, wherein the inner side of the first air duct is provided with at least one column along the axial direction of the first duct a wind hole group, the inner side of the second air duct is provided with at least one second wind hole group distributed along the axial direction of the second air duct; the first air hole group and the second air hole group are opposite Providing that the first air hole group includes a plurality of first air holes, The second air hole group includes a plurality of second air holes, and the plurality of first air holes of the first air hole group and the second second air hole of the second air hole group of the opposite row The ducts are axially staggered.
  • the first duct and the second duct are further provided with a guiding structure for guiding the circuit board through the gap.
  • an inner side of the first air duct and the second air duct is disposed as an arcuate cylinder surface, and the arcuate cylinder surface constitutes the guiding structure.
  • the first air duct and the second air duct are both a circular tube and an elliptical tube, and the curved cylindrical surface inside the first air duct and the curved cylindrical surface on the inner side of the second air duct constitute The guiding structure.
  • a first tube body is disposed at a top of the first air duct, the first tube body is provided with the first air hole, and the first tube body is connected to the first air tube, and The diameter of the first tube is smaller than the diameter of the first duct;
  • a second tube body is disposed at a top of the second air duct, the second tube body is provided with the second air hole, the second tube body is in communication with the second air tube, and the second tube
  • the diameter of the tubular body is smaller than the diameter of the second air duct.
  • the lengths of the first tube body and the second tube body are in the range of 30-100 mm.
  • the first air duct is provided with two rows of the first air hole groups arranged side by side, and the plurality of the first air holes of the two first air hole groups are laterally staggered;
  • the second air duct is provided with two rows of the second air hole groups arranged side by side, and the plurality of the second air holes of the two second air hole groups are laterally staggered.
  • a first inner tube is disposed in the first air duct, and the first inner tube is provided with a plurality of first through holes that communicate the first inner tube and the first air tube, The first inner tube is connected to an interface for pumping in the flowing air;
  • a second inner tube is also disposed in the second air duct, and the second inner tube is provided with a plurality of second through holes for communicating the second inner tube and the second air tube, the second inner tube
  • the tube is connected to an interface that can be pumped into the flowing air.
  • the first end of the first inner tube protrudes from the first end of the corresponding first air duct, and the first end of the first air duct constitutes the first tube body, The first inner end of the first inner tube is provided with the first air hole;
  • a first end of the second inner tube protrudes from a first end of the corresponding second duct, and a first end of the second duct forms the second tube, the second The second wind hole is disposed inside the first end of the inner tube.
  • the plurality of first through holes are axially distributed and the inner diameter is gradually increased;
  • a plurality of the second through holes are axially distributed and the inner diameter is gradually increased along a direction in which the first end of the second inner tube is directed to the second end of the second inner tube.
  • the present disclosure provides a drying apparatus including a frame, a pipe, a conveying mechanism, and a plurality of sets of the air knife assembly according to any one of the above, the air knife assembly being fixed under the conveying mechanism, the fan passing The conduit connects the air knife assembly.
  • the present disclosure provides an air knife assembly capable of stabilizing circuit transmission, comprising two vertical and side-by-side air ducts, each inner side of which is provided with at least one row of air holes distributed along the axial direction of the air duct.
  • the two air ducts are a first air duct and a second air duct, and at least one air blow hole group of the first air duct and at least one air blow hole group of the second air duct are oppositely disposed, and the plurality of the winds of the opposite row
  • the holes are staggered.
  • the air hole is a hole-like structure on the air duct, which does not protrude from the air duct.
  • the gap between the tubes can also effectively reduce the installation distance between the air ducts and reduce the size of the air knife assembly; the plurality of air holes of the opposite columns are staggered, and the two rows of air holes can be oppositely arranged.
  • FIG. 1 is a schematic structural view of an air knife assembly in an embodiment provided by the present disclosure
  • FIG. 2 is a schematic structural view of a duct in an embodiment provided by the present disclosure
  • Figure 3 is a cross-sectional view of the air duct in the embodiment provided by the present disclosure.
  • FIG. 4 is a top plan view of an embodiment of a duct in an embodiment provided by the present disclosure.
  • Figure 5 is a plan view of an embodiment of a duct 2 in an embodiment provided by the present disclosure
  • FIG. 6 is a top plan view of a third embodiment of a duct in an embodiment provided by the present disclosure.
  • Figure 7 is a schematic view showing the connection of the drying device in the embodiment provided by the present disclosure.
  • FIG. 8 is a schematic structural view of a drying apparatus in an embodiment provided by the present disclosure.
  • the transport mechanism includes a clamp that clamps the upper end of the circuit board such that the circuit board vertically passes through the gap between the air knife assemblies.
  • this embodiment is an air knife assembly, which includes two vertical and side-by-side air ducts 100 and a fan 200.
  • the fan 200 supplies high-speed air to the two air ducts 100, and each air duct 100
  • the inner side is provided with at least one row of air holes, and the two air ducts 100 are the first air duct and the second air duct, and at least one air hole group of the first air duct and at least one air blow hole group of the second air duct are oppositely disposed, and opposite A plurality of wind holes 101 of the column are alternately arranged.
  • the inner side in this embodiment refers to the opposite side of the air duct 100 disposed side by side, that is, the side on which the injection holes are provided.
  • the air hole group includes a first air hole group of the first air duct and a second air hole group of the second air duct; the air hole 101 may be a plurality of first air holes and a first air hole group including the first air hole group A plurality of second air holes of the second air hole group are described.
  • the high speed air is formed by a 4HP (British Horsepower) blower configured by a pair of air knives.
  • the air hole 101 is a hole-like structure on the air duct 100, and does not protrude from the air duct 100.
  • the circuit board 500 passes through the air duct 100, it directly contacts the air duct 100, and the circuit board 500 does not scrape the protruding object, so the circuit board 500 can safely pass through the gap between the two air ducts 100, and can effectively reduce the installation distance between the air ducts 100 and reduce the size of the air knife assembly; when the circuit board 500 is dried, the circuit board 500
  • the two air ducts 100 are the first air duct and the second air duct, and the at least one air blow hole group of the first air duct and the at least one air blow hole group of the second air duct are opposite to each other. It is arranged that the plurality of air holes 101 of the air column group of the opposite row are alternately arranged.
  • one of the two rows of the opposite rows of wind holes can be moved up or down by a certain distance to avoid the two rows of wind holes 101 being hedged, thereby improving the treatment effect on the holes.
  • the injected air of the opposite two rows of air holes 101 has the same impact force on the circuit board 500.
  • the gap between the two can effectively prevent the circuit board 500 from swinging, colliding with the air duct 100, and preventing the air duct 100 from scraping the circuit board 500.
  • the air holes 101 are axially distributed along the air duct 100, and a row of air hole groups includes
  • the air hole 101 is a rectangular hole or an oblong hole, and the air hole 101 extends from the first end of the air duct 100 to the air duct 100.
  • the air holes 101 include, but are not limited to, a circular hole, an elliptical hole, a square hole, a rectangular hole or an oblong hole, since the circuit board 500 has one In the plate-shaped electronic component of the porous hole, the wind hole 101 in the embodiment may be a circular hole.
  • the air blow group of the first embodiment of the present embodiment may be a plurality of circular wind holes 101 including finely distributed.
  • the two ducts 100 are provided with a guiding structure 102 for guiding the circuit board through the gap between the two ducts 100, and the guiding structure 102 may be an arcuate cylinder or a curved block having a guiding function.
  • the guiding structure 102 can guide the circuit board 500 into the gap between the air ducts 100, preventing the circuit board 500 from hitting the air duct 100. To prevent the board 500 card board.
  • the air duct 100 has various embodiments, and the air duct 100 may be a square tube, an elliptical tube, a round tube or the like.
  • the inner side of the square duct 100 is provided with an arcuate cylinder or an arc block connected to the body of the square duct 100, and the arc cylinder or the arc block constitutes a guide. Structure 102.
  • the curved cylindrical surface may be disposed at one end corner of the square tube, and the curved cylindrical surface replaces the inner corner of the square air duct 100, Through the inner end angle of the square duct 100, the circuit board 500 is transported from the end corners between the two square ducts 100.
  • two arcuate cylinder faces may be disposed, and the two arcuate cylinder faces are respectively disposed at opposite ends of the inner side of the square duct 100.
  • the curved cylindrical surface may be disposed on the inner side of the square air duct 100 instead of the inner side wall of the square air duct 100.
  • the curved block when the curved block constitutes the guiding structure 102, as shown in FIG. 6, the curved block is disposed at one end corner or both corners of the square air duct 100, and the curved surface and the square tube on the curved block The inner side walls are smoothly connected, and the curved block guides the circuit board 500 out of the arc of the curved block into the gap between the two square ducts 100.
  • the air duct 100 When the air duct 100 is an elliptical duct 100 or a circular duct 100, it has an arcuate cylinder surface, and its own arc cylinder can serve as a guiding structure and has a guiding function.
  • the air duct 100 may be a circular duct-shaped duct 100, and the cylindrical surface inside the two round duct-shaped ducts 100 constitutes a guiding structure 102, which utilizes the characteristic of the curved surface of the circular duct-shaped duct 100 itself.
  • the curved cylinder can be used as the guiding structure 102, which makes the structure of the air duct 100 simpler and accelerates the production speed of the air duct 100.
  • the circular tubular duct 100 can also be provided with an arcuate block.
  • a short tube is disposed at the top of the air duct 100.
  • 105 (including a first tube of the first duct and a second tube of the second duct).
  • the length of the short tube is in the range of 30-100 mm.
  • the short tube 105 has a wind hole 101, and the short tube 105 communicates with the air tube 100, and the diameter of the short tube 105 is smaller than that of the air tube 100.
  • the air hole 101 on the short tube 105 can surface-treat the clamp 300 and the circuit board 500 of the clamp portion 300, for example, the surface treatment of the region between the clamps 300 on the circuit board 500.
  • the dimension of the vertical circuit board 500 of the clamp 300 is larger than the thickness of the circuit board 500.
  • the two opposite air ducts 100 can be installed closer to each other, and the two opposite air ducts 100 are The gap between the gaps is smaller, the duct 100 is closer to the circuit board 500, the air injection stroke is shorter, and the required injection pressure is also smaller.
  • the short jet stroke is also applicable to the arrangement of the vent holes 101 of the row of the air holes of the opposite row in the present embodiment.
  • the short jet stroke is in the range of 5-10 mm.
  • each of the ducts 100 in this embodiment may be a group of air holes provided with an even number of rows.
  • the air holes 101 of different rows of the same duct are alternately arranged.
  • each air duct 100 is provided with two rows of air hole groups arranged side by side, and the air holes 101 of the two rows of air hole groups are staggered.
  • the staggered arrangement refers to lateral interleaving.
  • the two rows of air holes 101 interlaced with each other are not in the same horizontal position, and one row of the air hole groups is moved up or down relative to the other row of air hole groups. .
  • Two rows of air hole groups each of which is provided with a plurality of fine air holes 101, the number of the air holes 101 is arranged reasonably; in addition, the two air pipes 100 are installed side by side during installation, and the air holes 101 face the circuit board 500, that is, the same wind
  • the air ducts 100 of the knife assembly are vertically opposed to each other, which forms the air holes 101 of the row of the air holes, which are vertically offset from each other.
  • the same air duct 100 can be used for the same air knife assembly.
  • An interface 106 is disposed on the side wall of the air duct 100.
  • the interface 106 is connected to the fan, and the fan is used to pump the high-speed air into the air duct 100.
  • each of the air ducts 100 is provided with an inner tube 400 (including a first inner tube in the first air duct and a second inner tube in the second air duct), and the inner tube 400 is provided with at least A through hole 401 for communicating the inner tube 400 with the air duct 100, wherein the through hole 401 may be a first through hole including a first inner tube and a second through hole of the second inner tube, and the inner tube 400 passes through the lower sealing plate 104
  • An interface 106 is provided for air ingress.
  • the inner tube 400 can balance the pressure of the air in the air duct 100 and reduce the injection pressure difference of the air duct 100 in the same row.
  • the inner tube 400 can be provided with an opening in the tube wall that is coupled to the interface 106.
  • each inner tube 400 protrudes from an upper end portion (first end portion) of the corresponding air duct 100, and an inner side of an upper end portion of each inner tube 400 is provided with a wind hole 101 .
  • the first pipe body 105 is an additional structure, so that the upper end portion of the inner pipe 400 protrudes from the air pipe 100, which can replace the short pipe 105, and has the technical effect of the short pipe 105.
  • the upper sealing plate 103 is provided with a first mounting hole 1031, The first mounting hole 1031 is configured to pass through the upper end portion of the inner tube 400 and is sealingly connected to the outer wall of the upper end portion of the inner tube 400.
  • the lower sealing plate 104 is provided with a second mounting hole 1042, and the second mounting hole 1042 is used for the inner tube
  • the lower end of the 400 is hermetically connected. This function can be realized by extending the length of the inner tube 400 with respect to the additional short tube 105, so that the upper end portion of the inner tube 400 can reduce the production process and improve the production efficiency.
  • the air holes 101 are distributed along the axial direction of the inner tube 400.
  • the through holes 401 may be disposed on the side of the inner tube 400 away from the air hole 101, so as to effectively prevent the air flowing through the inner tube 400 from flowing directly to the air hole 101. Increase the effect of balancing the air pressure of the duct 100.
  • the number of the through holes 401 is at least two, and the first end of the inner tube 400 is directed to the second end of the inner tube 400.
  • the through hole 401 is distributed along the axial direction and the inner diameter is gradually increased, that is, the through hole 401.
  • the inner diameter increases from top to bottom.
  • the first end of the inner tube may be provided with a wind hole 101.
  • the embodiment further provides an optional application embodiment of the air knife assembly.
  • the embodiment provides a drying device, which may include a frame 600, a pipe 601, a conveying mechanism 300, and A plurality of the above-mentioned air knife assemblies, the air knife assembly is fixed under the conveying mechanism 300, and the fan 200 is connected to the air duct 100 through a pipeline.
  • the transport mechanism includes a jig 301 that holds the upper end portion of the circuit board 500 and a transport rail 302 that vertically passes through the gap between the air ducts 100.
  • the fixing frame comprises a connecting rod (not shown) and a fixing column (not shown), the first end of the connecting rod is connected to the frame 600, the second end of the connecting rod is connected with the fixing column, and the fixing column is connected to the air duct 100.
  • the fixing post is connected to the side of the air duct 100 opposite to the air hole 101, so that the upper end portion of the air duct 100 can reserve enough space for the jig 301 to pass.
  • the air knife assembly provided by the present disclosure can make the circuit transmission stable, and the circuit board can safely pass through the gap between the two air ducts, and can effectively reduce the installation distance between the air ducts and reduce the size of the air knife assembly;
  • the plurality of wind holes of the opposite columns are staggered, and when staggered, one column of the two rows of the opposite rows of wind holes can be moved up or down by a certain distance as a whole, thereby avoiding the wind holes of the two rows and improving the air drying effect on the holes;
  • the injected air of the opposite two rows of air holes has the same impact force on the circuit board, and as a whole, there is only a difference in the position of the small impact force, and the circuit board can smoothly pass through the gap between the air knife assemblies. It can effectively avoid the board from swaying, colliding with the air duct and avoiding the air duct scraping the circuit board.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

L'invention concerne un ensemble lame d'air et un dispositif de séchage, l'ensemble lame d'air comprenant deux conduits d'air verticaux et côte à côte (100) ; un espace est ménagé entre les deux conduits d'air (100) pour permettre le passage d'une carte de circuit imprimé (500) ; au moins une rangée de groupes de trous d'aération répartis axialement le long des conduits d'air (100) est disposée le long d'un côté interne de chaque conduit d'air (100) ; chaque rangée de groupes de trous d'évent des deux conduits d'air (100) est disposée de manière opposée ; chaque groupe de trous d'aération comprend une pluralité de trous d'aération (101) ; et les trous d'aération (101) du groupe de trous d'aération situés dans la rangée interne sont chacun disposés en alternance le long de la direction axiale du conduit d'air (100).
PCT/CN2017/088973 2016-10-18 2017-06-19 Ensemble lame d'air et dispositif de séchage WO2018072464A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610909218.8 2016-10-18
CN201610909218.8A CN106369985B (zh) 2016-10-18 2016-10-18 一种风刀组件及干燥装置

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WO2018072464A1 true WO2018072464A1 (fr) 2018-04-26

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PCT/CN2017/088973 WO2018072464A1 (fr) 2016-10-18 2017-06-19 Ensemble lame d'air et dispositif de séchage

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WO (1) WO2018072464A1 (fr)

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CN108534539A (zh) * 2018-05-14 2018-09-14 安徽宏实自动化装备有限公司 一种多孔式风刀装置
CN109261637A (zh) * 2018-09-19 2019-01-25 安徽宏实自动化装备有限公司 一体成形微型之多孔式风刀
CN110004862A (zh) * 2019-05-16 2019-07-12 路直 旋转风刀
US10799919B2 (en) * 2017-05-22 2020-10-13 G-Winner Environmental Protection Co., Ltd. Washing device
CN112033140A (zh) * 2020-09-10 2020-12-04 广东溢达纺织有限公司 风嘴、烘干机及其应用

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CN108882542A (zh) * 2018-07-23 2018-11-23 南京铁道职业技术学院 Pcb板风干机
CN110006226A (zh) * 2019-04-09 2019-07-12 北京七星华创集成电路装备有限公司 干燥装置

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US4155178A (en) * 1977-12-19 1979-05-22 U.S. Natural Resources, Inc. Tube for impinging jet air drier
US5289639A (en) * 1992-07-10 1994-03-01 International Business Machines Corp. Fluid treatment apparatus and method
US6073369A (en) * 1997-03-31 2000-06-13 Nec Corporation Substrate drying apparatus and method
US6446358B1 (en) * 1999-07-16 2002-09-10 Alps Electric Co., Ltd. Drying nozzle and drying device and cleaning device using the same
CN2538743Y (zh) * 2002-04-25 2003-03-05 扬博科技股份有限公司 直立式电路板输送及吹风装置
WO2016057425A1 (fr) * 2014-10-09 2016-04-14 Usnr, Llc Tube à jet autonettoyant
CN104455545A (zh) * 2014-11-28 2015-03-25 合肥鑫晟光电科技有限公司 自切换t型三通接头及卡夹清洗干燥装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10799919B2 (en) * 2017-05-22 2020-10-13 G-Winner Environmental Protection Co., Ltd. Washing device
CN108534539A (zh) * 2018-05-14 2018-09-14 安徽宏实自动化装备有限公司 一种多孔式风刀装置
CN109261637A (zh) * 2018-09-19 2019-01-25 安徽宏实自动化装备有限公司 一体成形微型之多孔式风刀
CN110004862A (zh) * 2019-05-16 2019-07-12 路直 旋转风刀
CN110004862B (zh) * 2019-05-16 2024-01-16 路直 旋转风刀
CN112033140A (zh) * 2020-09-10 2020-12-04 广东溢达纺织有限公司 风嘴、烘干机及其应用
CN112033140B (zh) * 2020-09-10 2023-11-28 广东溢达纺织有限公司 风嘴、烘干机及其应用

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