CN102506570B - Air knife - Google Patents
Air knife Download PDFInfo
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- CN102506570B CN102506570B CN 201110344444 CN201110344444A CN102506570B CN 102506570 B CN102506570 B CN 102506570B CN 201110344444 CN201110344444 CN 201110344444 CN 201110344444 A CN201110344444 A CN 201110344444A CN 102506570 B CN102506570 B CN 102506570B
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Abstract
The invention provides an air knife. The air knife comprises an air knife body, an air inlet, an air inlet pipe, an air inlet cavity, an air outlet cavity, a plurality of airflow channels, an air outlet, a plurality of adjusting threaded holes and a plurality of adjusting top threads, wherein the air inlet is formed on the surface of one side of the air knife body; one end of the air inlet pipe is connected to the air inlet; the air inlet cavity is formed inside the air knife body, is communicated with the air inlet and extends along a length direction of the air knife body; the air outlet cavity is formed inside the air knife body, is positioned above the air inlet cavity and extends along the length direction of the air knife body; the plurality of airflow channels are formed between the air outlet cavity and the air inlet cavity and are used for communicating the air outlet cavity with the air inlet cavity; the air outlet is formed on a top surface of the air knife body, extends from an inner part of the air knife body to the air outlet cavity and is communicated with the air outlet cavity; the plurality of adjusting threaded holes are formed on a bottom surface of the air knife body, extend upwards and are connected to the air inlet cavity, and the adjusting threaded holes and the airflow channels are arranged coaxially; and each adjusting top thread passes through a corresponding adjusting threaded hole through threaded connection and is inserted into a corresponding airflow channel.
Description
Technical field
The invention belongs to the air knife field, relate in particular to the adjustable air knife of a kind of integral type.
Background technology
Air knife (being also referred to as air knife) is a kind of drying device, is generally used for the industrial circles such as electronics, semiconductor, printing and rubber, is used for components and parts are carried out drying, cleaning and cooling etc.
Air knife structurally generally includes the passage of air inlet, air inlet chamber, exhaust chamber, connection air inlet chamber and exhaust chamber and exhaust outlet etc.In order to strengthen the air curtain flow velocity, exhaust chamber generally adopts symmetrical side to extend to top center, until assemble with exhaust outlet, forms gas wedge shape guide structure, forms banded high-pressure injection air-flow via exhaust outlet.Exhaust outlet is generally at least one slit or at least one row's small structure.Generally speaking, air inlet is arranged at bottom surface central authorities or both sides, and the air curtain flow velocity is skewness on the air knife length direction, and is high at the exhaust outlet position air curtain flow velocity close to air inlet, low at the exhaust outlet position air curtain flow velocity away from air inlet.
In order to address this problem, patent documentation CN201532092U discloses a kind of air knife, in this air knife, deflector is set, to form first-level buffer chamber and level 2 buffering chamber, air inlet both sides on deflector are respectively arranged with the guiding gutter group, and adjust size and the incline direction of deflector and guiding gutter according to the size of the distance of each guiding gutter of deflector and guiding gutter group and air inlet.The shortcoming of this air knife is: at first, the admission pressure size is not quite similar under the Different field environment, and the flow velocity uniformity is a greater impact; Moreover deflector and guiding gutter are structurally all comparatively complicated, and manufacturing procedure and technique are more; In addition, existing air knife all adopts composite structural design in order to realize the adjustability of air curtain size and flow velocity, and use and adjustment difficulty are larger.
Summary of the invention
The object of the invention is to overcome the shortcoming of existing air knife, provide a kind of simple in structure, adjust easy adjustable air knife.
According to an aspect of the present invention, provide a kind of air knife, this air knife comprises: the air knife body; Air inlet is arranged on the side surface of air knife body; Air inlet pipe, an end of air inlet pipe is connected to air inlet, and the other end of air inlet pipe is connected to outside feeder; The air inlet chamber is arranged on the air knife body interior, and the air inlet chamber is communicated with air inlet, and extends along the length direction of air knife body; Exhaust chamber is arranged on the air knife body interior, is positioned at air inlet chamber top, and is spaced a predetermined distance from the air inlet chamber, and extends along the length direction of air knife body; A plurality of gas channels are arranged between exhaust chamber and the air inlet chamber vertically, and described a plurality of gas channels are communicated with exhaust chamber and air inlet chamber; Exhaust outlet is arranged on the top surface of air knife body, and exhaust outlet extends to exhaust chamber to the air knife body interior, is communicated with exhaust chamber; A plurality of adjusting screwed holes are arranged on the basal surface of air knife body, and described a plurality of adjusting screwed holes extend upward and be connected to the air inlet chamber, and described a plurality of adjusting screwed holes are also arranged respectively coaxially with described a plurality of gas channels are corresponding one by one; A plurality of adjusting jackscrews, has predetermined length, in described a plurality of adjusting jackscrew each is threaded connection one of the correspondence of passing in described a plurality of adjusting screwed hole and regulates screwed hole and be inserted in gas channel of correspondence in described a plurality of gas channel, and described a plurality of adjusting jackscrew is used for sealing and regulates screwed hole.
The air inlet chamber can be the circular hole structure.
Described a plurality of gas channel can equally spaced be arranged in the air knife body interior.
Exhaust outlet can be the slit along the length direction extension of air knife body, and is positioned at the top surface middle part of air knife body.
The cross section of exhaust chamber can be triangular in shape, and two sidewalls of exhaust chamber are inclined upwardly with close to each other, and the upper end of described two sidewalls is connected to exhaust outlet, forms airflow guiding structure.
On the relative opposite side surface of the side surface with being provided with air inlet of air knife body, can be provided with air inlet chamber seal, air inlet chamber seal is positioned at the end of the extension of air inlet chamber, air inlet chamber seal is equipped with air inlet chamber seal, to be sealed into gas chamber's seal.
All can be provided with exhaust chamber's seal on the both side surface of air knife body, two exhaust chamber's seals lay respectively at the two ends of exhaust chamber, and described two exhaust chamber's seals are separately installed with exhaust chamber's seal, with sealing exhaust chamber seal.
Can regulate jackscrew and be inserted into length in the corresponding gas channel by regulating each, regulate each and regulate gap between jackscrew and the gas channel adjusting the air pressure of exhaust chamber, thereby adjust size and the flow velocity of the air curtain that the exhaust outlet of air knife produces.
Each regulates jackscrew can comprise conehead, cylindrical section and thread segment, the shape of thread segment is corresponding to the shape of regulating screwed hole, thread segment is threaded and seals the adjusting screwed hole, and cylindrical section extends upward predetermined length from the top of thread segment, and conehead is attached to the top of cylindrical section.
Can adjust with the length that is threaded of regulating screwed hole by the double thread section, adjust the gap between conehead and the gas channel, with the air pressure of adjustment exhaust chamber, thus size and the flow velocity of the air curtain that the exhaust outlet of adjustment air knife produces.
Air knife of the present invention is simple in structure, and processing is convenient, and is easy to use, can be widely used in the every field such as electronics, semiconductor, printing, rubber.
Description of drawings
In conjunction with the drawings, from the description of the following examples, the present invention these and/or other side and advantage will become clear, and are easier to understand, wherein:
Fig. 1 is the stereogram according to the air knife of the embodiment of the invention;
Fig. 2 is the front view according to the air knife of the embodiment of the invention;
Fig. 3 is the top view according to the air knife of the embodiment of the invention;
Fig. 4 is the cutaway view along the intercepting of the A-A line among Fig. 3;
Fig. 5 is the right view according to the air knife of the embodiment of the invention;
Fig. 6 is the partial assembled schematic diagram according to the air knife of the embodiment of the invention;
Fig. 7 is the structure chart according to the adjusting jackscrew of the air knife of the embodiment of the invention.
The specific embodiment
Below, describe embodiments of the invention in detail with reference to accompanying drawing.
Fig. 1 is the stereogram according to the air knife of the embodiment of the invention, and Fig. 2 is the front view according to the air knife of the embodiment of the invention, and Fig. 3 is the top view according to the air knife of the embodiment of the invention, and Fig. 4 is the cutaway view along the intercepting of the A-A line among Fig. 3.
Referring to figs. 1 through Fig. 4, comprise air knife body 1 according to the air knife of the embodiment of the invention.Air knife body 1 can be rectangular shape (strip) roughly, but the invention is not restricted to this, can suitably change according to actual operating position the shape of air knife body 1, and for example, air knife body 1 also can be generally cylindrical body shape etc.
A side surface at air knife body 1 is provided with air inlet 7.Air inlet 7 is connected (for example can connect by engage thread) with an end of air inlet pipe 12, and the other end of air inlet pipe 12 can be connected to outside feeder (such as air pump etc.).
Be provided with air inlet chamber 8 in air knife body 1 inside, air inlet chamber 8 is communicated with air inlet 7, and extends along the length direction of air knife body 1.Air inlet chamber 8 can be circular hole structure (its cross section is for circular), but the invention is not restricted to this, and the cross section of air inlet chamber 8 also can be the various shapes such as round rectangle, ellipse.
Be provided with exhaust chamber 3 in air knife body 1 inside, exhaust chamber 3 is positioned at air inlet chamber 8 tops, and spaced a predetermined distance from air inlet chamber 8, along the length direction extension of air knife body 1.
Be provided with vertically a plurality of gas channels 4 between exhaust chamber 3 and air inlet chamber 8, described a plurality of gas channels 4 are communicated with exhaust chamber 3 and air inlet chamber 8.A plurality of gas channels 4 can equally spaced be arranged in air knife body 1 inside.
Top surface at air knife body 1 is provided with exhaust outlet 2, and exhaust outlet 2 extends to exhaust chamber 3 to air knife body 1 inside, is communicated with exhaust chamber 3.Exhaust outlet 2 can be slit, is positioned at the top surface middle part of air knife body 1.
Fig. 5 is the right view according to the air knife of the embodiment of the invention.With reference to Fig. 5, the cross section of exhaust chamber 3 is triangular in shape, and two sidewalls 30 of exhaust chamber 3 are inclined upwardly with close to each other, and the upper end of two sidewalls 30 is connected to exhaust outlet 2, forms airflow guiding structure.That is, the size of exhaust chamber 3 lower ends is greater than the size of upper end, so that guiding gas flows towards exhaust outlet 2.Yet, the invention is not restricted to this, the cross section of exhaust chamber 3 also can be other shape, needs only exhaust chamber 3 and exhaust outlet 2 smooth connections and be beneficial to guiding gas to flow towards exhaust outlet 2.
Fig. 6 is the partial assembled schematic diagram according to the air knife of the embodiment of the invention.With reference to Fig. 4 and Fig. 6, be provided with air inlet chamber seal 6 on the relative opposite side surface of that side surface with being provided with air inlet 7 of air knife body 1.Air inlet chamber seal 6 is positioned at the end of the extension of air inlet chamber 8, and air inlet chamber seal 11 is installed to air inlet chamber seal 6 to be sealed into gas chamber's seal 6.Air inlet chamber seal 11 can be sealing screw, the mode that is threaded connection is connected with air inlet chamber seal 6, to be sealed into gas chamber's seal 6, still the invention is not restricted to this, also can be the seal of other form, as long as can be sealed into gas chamber's seal 6.
The both side surface along air knife body length direction at air knife body 1 is provided with the two ends that 5, two exhaust chamber's seals 5 of exhaust chamber's seal lay respectively at exhaust chamber 3.Two exhaust chamber's seals 10 are respectively installed to two exhaust chamber's seals 5, with sealing exhaust chamber seal 5.Similarly, exhaust chamber's seal 10 can be sealing screw, and the mode that is threaded connection is connected with exhaust chamber seal 5, with sealing exhaust chamber seal 5, but the invention is not restricted to this, also can be the seal of other form, as long as can seal exhaust chamber's seal 5.
Optionally, the two ends of exhaust chamber 3 and air inlet chamber 8 can directly (for example be sealed in air knife body 1, can make by techniques such as molds half air knife body of two symmetries, be formed with corresponding chamber in the half air knife body, half air knife body amalgamation with two symmetries, can form airtight exhaust chamber 3 and air inlet chamber 8, only air inlet 7 need to be set separately and get final product).Therefore exhaust chamber's seal 5, air inlet chamber seal 6 and corresponding exhaust chamber's seal 10 and air inlet chamber seal 11 can be set.
In addition, it should be noted that, mainly show overall appearance and the internal structure of air knife body 1 among Fig. 2 to Fig. 4, and omitted the parts such as air inlet pipe 12, air inlet chamber seal 11, exhaust chamber's seal 10.
With reference to Fig. 4 and Fig. 6, be provided with a plurality of adjusting screwed holes 9 at the basal surface of air knife body 1, a plurality of adjusting screwed holes 9 extend upward and are connected to air inlet chamber 8.The quantity of regulating screwed hole 9 is identical with the quantity of gas channel 4, and a plurality of adjusting screwed holes 9 are also arranged respectively coaxially with a plurality of gas channels 4 are corresponding one by one.A plurality of adjusting jackscrews 13 with predetermined length are inserted into respectively in a plurality of adjusting screwed holes 9, in described a plurality of adjusting jackscrew 13 each is threaded connection one of the correspondence of passing in described a plurality of adjusting screwed hole 9 and regulates screwed hole and be inserted in gas channel of correspondence in described a plurality of gas channel 4, and described a plurality of adjusting jackscrew 9 is used for sealing and regulates screwed hole 9.By being inserted into the degree of depth of regulating in the screwed hole 9, adjusting jackscrew 13 adjusts, the gap of regulating between jackscrew 13 and the gas channel 4 can be conditioned, thereby can regulate the air pressure of exhaust chamber 3, and then regulate size and the flow velocity of the air curtain that the exhaust outlet 2 of air knife produces.
Fig. 7 is the structure chart according to the adjusting jackscrew of the air knife of the embodiment of the invention.With reference to Fig. 7, regulate jackscrew 13 and comprise conehead 130, cylindrical section 131 and thread segment 132.Thread segment 132 is threaded and seals with adjusting screwed hole 9 and regulates screwed hole 9.Cylindrical section 131 extends upward predetermined length from the top of thread segment 132, and conehead 130 is attached to the top of cylindrical section 131.
Therefore, when outside feeder (for example air pump) passed through air inlet pipe 12 to the air knife air feed, air-flow flow to exhaust outlet 2 through air inlet chamber 8, gas channel 4 and exhaust chamber 3, discharged the air curtain with pre-sizing and flow velocity from exhaust outlet 2.Regulate with the length that is threaded of regulating screwed hole 9 by double thread section 132, but the gap between cone governor head 130 and the gas channel 4, thereby can regulate the air pressure of exhaust chamber 3, and then regulate size and the flow velocity of the air curtain that the exhaust outlet 2 of air knife produces.For near the adjusting jackscrew 13 of air inlet 7, because relatively large near the air pressure at air inlet 7 places, can get relative smaller with gap adjustment between the gas channel 4 conehead 130; For the adjusting jackscrew 13 away from air inlet 7 because away from the air pressure less at air inlet 7 places, so conehead 130 and gap adjustment between the gas channel 4 can be got relative larger, like this can be from the more uniform air curtain of exhaust outlet 2 generation air pressure.
Be the adjustable air knife of integral type according to air knife of the present invention, simple in structure, processing is convenient, and is easy to use, can be widely used in the every field such as electronics, semiconductor, printing, rubber.
Although the present invention is specifically described with reference to its exemplary embodiment and is shown, but will be understood by those skilled in the art that, in the situation that does not break away from the spirit and scope of the present invention that are defined by the claims, can carry out to it various changes of form and details.
Claims (10)
1. an air knife is characterized in that, described air knife comprises:
The air knife body is rectangular shape roughly;
Air inlet is arranged on the side surface of air knife body;
Air inlet pipe, an end of air inlet pipe is connected to air inlet, and the other end of air inlet pipe is connected to outside feeder;
The air inlet chamber is arranged on the air knife body interior, and the air inlet chamber is communicated with air inlet, and extends along the length direction of air knife body;
Exhaust chamber is arranged on the air knife body interior, is positioned at air inlet chamber top, and is spaced a predetermined distance from the air inlet chamber, and extends along the length direction of air knife body;
A plurality of gas channels are arranged between exhaust chamber and the air inlet chamber vertically, and described a plurality of gas channels are communicated with exhaust chamber and air inlet chamber;
Exhaust outlet is arranged on the top surface of air knife body, and exhaust outlet extends to exhaust chamber to the air knife body interior, is communicated with exhaust chamber;
A plurality of adjusting screwed holes are arranged on the basal surface of air knife body, and described a plurality of adjusting screwed holes extend upward and be connected to the air inlet chamber, and described a plurality of adjusting screwed holes are also arranged respectively coaxially with described a plurality of gas channels are corresponding one by one;
A plurality of adjusting jackscrews, has predetermined length, in described a plurality of adjusting jackscrew each is threaded connection one of the correspondence of passing in described a plurality of adjusting screwed hole and regulates screwed hole and be inserted in gas channel of correspondence in described a plurality of gas channel, and described a plurality of adjusting jackscrew is used for sealing and regulates screwed hole.
2. air knife according to claim 1 is characterized in that, the air inlet chamber is the circular hole structure.
3. air knife according to claim 1 is characterized in that, described a plurality of gas channels equally spaced are arranged in the air knife body interior.
4. air knife according to claim 1 is characterized in that, exhaust outlet is the slit along the length direction extension of air knife body, and is positioned at the top surface middle part of air knife body.
5. air knife according to claim 1 is characterized in that, the cross section of exhaust chamber is triangular in shape, and two sidewalls of exhaust chamber are inclined upwardly with close to each other, and the upper end of described two sidewalls is connected to exhaust outlet, forms airflow guiding structure.
6. each described air knife is characterized in that according to claim 1-5, is provided with air inlet chamber seal on the relative opposite side surface of the side surface with being provided with air inlet of air knife body,
Air inlet chamber seal is positioned at the end of the extension of air inlet chamber, and air inlet chamber seal is equipped with air inlet chamber seal, to be sealed into gas chamber's seal.
7. each described air knife is characterized in that according to claim 1-5, is provided with exhaust chamber's seal in the both side surface of air knife body, and two exhaust chamber's seals lay respectively at the two ends of exhaust chamber,
Described two exhaust chamber's seals are separately installed with exhaust chamber's seal, with sealing exhaust chamber seal.
8. each described air knife according to claim 1-5, it is characterized in that, regulate jackscrew and be inserted into length in the corresponding gas channel by regulating each, regulate each and regulate gap between jackscrew and the gas channel adjusting the air pressure of exhaust chamber, thereby adjust size and the flow velocity of the air curtain that the exhaust outlet of air knife produces.
9. air knife according to claim 8 is characterized in that, each is regulated jackscrew and comprises conehead, cylindrical section and thread segment,
The shape of thread segment is corresponding to the shape of regulating screwed hole, and thread segment is threaded and seals the adjusting screwed hole, and cylindrical section extends upward predetermined length from the top of thread segment, and conehead is attached to the top of cylindrical section.
10. air knife according to claim 9, it is characterized in that, adjust with the length that is threaded of regulating screwed hole by the double thread section, adjust the gap between conehead and the gas channel, with the air pressure of adjustment exhaust chamber, thus size and the flow velocity of the air curtain that the exhaust outlet of adjustment air knife produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110344444 CN102506570B (en) | 2011-11-03 | 2011-11-03 | Air knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110344444 CN102506570B (en) | 2011-11-03 | 2011-11-03 | Air knife |
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| Publication Number | Publication Date |
|---|---|
| CN102506570A CN102506570A (en) | 2012-06-20 |
| CN102506570B true CN102506570B (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110344444 Active CN102506570B (en) | 2011-11-03 | 2011-11-03 | Air knife |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207793414U (en) * | 2017-12-06 | 2018-08-31 | 北京铂阳顶荣光伏科技有限公司 | Plank filming equipment with the elegant function of anti-gas |
| CN111570106A (en) * | 2020-05-08 | 2020-08-25 | 五邑大学 | Rectangular air knife |
| CN112622428A (en) * | 2020-12-16 | 2021-04-09 | 西安理工大学 | Air hole type dust removal device for paper dust on surface of printing stock on printing machine |
| CN112974405B (en) * | 2021-02-24 | 2022-07-01 | 安徽捷密德智能机械制造有限责任公司 | Integrally formed air knife |
| CN113154862B (en) * | 2021-02-26 | 2022-07-15 | 东莞汇和电子有限公司 | Electronic circuit board assembly piston drying air knife |
| CN115537700B (en) * | 2022-08-30 | 2024-04-23 | 武汉钢铁有限公司 | Air knife |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004188321A (en) * | 2002-12-11 | 2004-07-08 | Tokyo Electron Ltd | Air jetting apparatus and air jetting width adjustment method |
| CN2837072Y (en) * | 2005-11-15 | 2006-11-15 | 刘思波 | Novel wind knife structure |
| CN200952032Y (en) * | 2006-09-13 | 2007-09-26 | 攀钢集团攀枝花钢铁研究院 | Airblade for controlling Zinc coat thickness |
| JP2009172554A (en) * | 2008-01-28 | 2009-08-06 | Toshiba Corp | Air knife unit |
| CN201587116U (en) * | 2010-03-08 | 2010-09-22 | 中山博锐斯塑胶新材料有限公司 | Cold air knife device of TPU film blowing equipment |
| CN201917186U (en) * | 2010-11-29 | 2011-08-03 | 深圳市和科达液晶设备有限公司 | Air knife |
| CN202304327U (en) * | 2011-11-03 | 2012-07-04 | 北京太阳能电力研究院有限公司 | Air knife |
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2011
- 2011-11-03 CN CN 201110344444 patent/CN102506570B/en active Active
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