CN104030073B - A kind of air diverts device - Google Patents
A kind of air diverts device Download PDFInfo
- Publication number
- CN104030073B CN104030073B CN201410293015.1A CN201410293015A CN104030073B CN 104030073 B CN104030073 B CN 104030073B CN 201410293015 A CN201410293015 A CN 201410293015A CN 104030073 B CN104030073 B CN 104030073B
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- air
- seat
- return air
- housing
- diverts device
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Abstract
The open a kind of air diverts device of the present invention, comprises housing, even wind plate, interior return air seat, spray wind seat and outer return air seat; Housing is fixed with and leads to the blast tube into its inside; Even wind plate is fixed in housing, and is fixedly connected with housing, and even wind plate is provided with open-work; Interior return air seat is connected on housing, and it is the bending plate with multiple flanging, and on it, each bending part is equipped with the first open-work; Spray wind seat is multiple, and it is arranged on interior return air seat; Spray wind seat covers on outside the first air-permeating hole, and spray wind seat is provided with the spray air port of long narrow bar shaped; Outer return air seat is arranged between adjacent spray wind seat; Outer return air seat is connected with the return air open-work of interior return air seat; Return air open-work is connected with the interior return air channel of interior return air seat; Housing is provided with the air draft mouth for connecting air and interior return air channel. In this air diverts device, return air air-flow by neighbouring outer return air seat return air, can avoid return air air-flow packing phenomenon in air cushion, it is ensured that the gap between air diverts device and paper is even everywhere.
Description
Technical field
The present invention relates to mechanical industry technical field, more specifically, it relates to a kind of air diverts device.
Background technology
Air diverts device is widely used in paper machine equipment, and for making, paper is contactless turns to for it.
Existing air diverts device comprises direction exchange box body, gradually opening air channel and blast automatic control system, and wherein, gradually opening air channel is arranged on above direction exchange box body, and is connected with direction exchange box body; Blast automatic control system is fixed on gradually above opening air channel. During work, wind enters from gradually opening air channel, and by blast automatic control system according to the aperture of paper automatic control storm door, thus control air output and blast, regulate the blast in direction exchange box body, wind makes direction exchange box body form blast through the even wind dividing plate of band hole, make the blast everywhere in direction exchange box body equal through band hole even wind dividing plate, make whole web direction tuyere consistent with the air-out blast of slit, between paper width and tuyere, slit, form circular arc air cushion cambered surface, do not contact with casing when ensureing that paper width runs.
But, in the air cushion that above-mentioned air diverts device is formed, return air space is the space between air diverts device, paper width, tuyere, the outlet of air cushion is positioned at whole return air space surrounding, air-flow is caused easily to pile up, it is big that air-flow goes out air port place airshed at air cushion, little in middle portion airshed, go out air port place due to airshed big, impact going out wind velocity, use wind velocity to reduce, therefore air diverts device and paper gap are less, and middle portion is then contrary, and gap is bigger, therefore cause gap uneven, cause hanging paper, disconnected paper phenomenon.
In addition, in above-mentioned air diverts device, the tuyere place of different positions is subject to return air air-flow different, less by return air airflow influence near middle portion, influenced bigger near paper turnover side and paper breadths, cause the air quantity needed for tuyere and the blast of different positions variant, and this air diverts device only enough total air quantity and blast controlling to enter direction exchange box body 1, blast and air quantity that each goes out air port can not be controlled separately, it is difficult to meet tuyere everywhere and, to the requirement of air quantity and blast, it is unfavorable for that paper turns to smoothly.
In sum, how providing a kind of air diverts device, the gap pile up to avoid return air air-flow, guaranteed between air diverts device and paper is even, is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the present invention provides a kind of air diverts device, its spray wind seat and outer return air seat interval are arranged, return air air-flow can by neighbouring above-mentioned outer return air seat return air everywhere, return air air-flow in air cushion is avoided to produce packing phenomenon, and then the gap guaranteed between air diverts device and paper width is even, avoid hanging paper, disconnected paper phenomenon.
For achieving the above object, the present invention provides following technical scheme:
A kind of air diverts device, comprising:
Housing, described housing is fixed with and leads to the blast tube into its inside;
It is fixed in described housing, and the even wind plate being fixedly connected with described housing, described even wind plate is provided with open-work;
Arranging interior return air seat on the housing, described interior return air seat is the bending plate with multiple flanging, and on it, each bending part is equipped with the first air-permeating hole;
The multiple spray wind seats being arranged on described interior return air seat, described spray wind seat covers on outside described air-permeating hole, and described spray wind seat is provided with the spray air port of long strip shape; With
The outer return air seat being arranged between adjacent described spray wind seat;
Wherein, described outer return air seat is connected with the return air open-work of described interior return air seat; Described return air open-work is connected with the interior return air channel of described interior return air seat; Described housing is provided with for being connected air and the air draft mouth of described interior return air channel.
Preferably, in above-mentioned air diverts device, also comprise the windsheild of the aperture for regulating described air draft mouth; Described windsheild can be slidably arranged on described housing.
Preferably, in above-mentioned air diverts device, the number of described air draft mouth is multiple, and sets in a row; The slip direction of described windsheild is identical with the arrangement direction of described air draft mouth.
Preferably, in above-mentioned air diverts device, also comprise the air quantity adjustment seat can being slidably arranged on described interior return air seat; Described air quantity adjustment seat is positioned at described spray wind seat, and overlays on described first air-permeating hole place, and described air quantity adjustment seat is provided with the 2nd air-permeating hole for being connected with described first air-permeating hole.
Preferably, in above-mentioned air diverts device, described air quantity adjustment seat is slided along described interior return air seat by driving mechanism.
Preferably, in above-mentioned air diverts device, described driving mechanism comprises:
The screw bolt seat with installation portion and screw rod, described installation portion is fixedly connected with described screw rod;
Fixing outer Connection Block on the housing, described outer Connection Block is provided with open slot, and described screw rod is through this open slot;
With the dowel bushing that described air quantity adjustment seat is fixedly connected with, the pin of described dowel bushing is through described housing and is fixedly connected with described installation portion;
Wherein, described screw rod is provided with and rotates handwheel and nut, and described rotation handwheel and described nut lay respectively at described outer Connection Block both sides, and described nut is between described outer Connection Block and described housing.
Preferably, in above-mentioned air diverts device, described driving mechanism also comprises the needle plate being fixed in described installation portion; Described outer Connection Block is provided with and the scale that described needle plate coordinates.
Preferably, in above-mentioned air diverts device, driving mechanism described in corresponding one group of air quantity adjustment seat described in each, and often organize described driving mechanism only air quantity adjustment seat described in corresponding a group.
The present invention provides a kind of air diverts device, and it comprises housing, even wind plate, interior return air seat, spray wind seat and outer return air seat; Housing is fixed with and leads to the blast tube into its inside; Even wind plate is fixed in housing, and is fixedly connected with housing, and even wind plate is provided with equally distributed open-work; Interior return air seat is arranged on housing, and interior return air seat is the bending plate with multiple flanging, and on it, each bending part is equipped with the first open-work; Spray wind seat is arranged on interior return air seat, and its number is multiple; Spray wind seat covers on outside the first air-permeating hole, and spray wind seat is provided with the spray air port of long narrow bar shaped; Outer return air seat is arranged between adjacent spray wind seat; Outer return air seat is connected with the return air open-work of interior return air seat; Above-mentioned return air open-work is connected with the interior return air channel of interior return air seat; Housing is provided with the air draft mouth for connecting air and interior return air channel.
When applying above-mentioned air diverts device, blast tube delivers the gas in housing, gas in housing is by even wind plate, again by spraying by spray wind seat after interior return air seat, the gas of ejection forms return air under the barrier effect of paper, return air reaches return air open-work through the outer return air seat near it, and arrive air draft mouth via the interior return air channel of interior return air seat, air is entered again by air draft mouth, in addition, a small amount of return air at wastepaper ultilization place and paper edge place enters air by the gap between paper and air diverts device.
In air diverts device provided by the invention, spray wind seat and outer return air seat interval are arranged, and return air air-flow by neighbouring above-mentioned outer return air seat return air, can avoid return air air-flow packing phenomenon in air cushion everywhere, and then the gap guaranteed between air diverts device and paper is even, avoid hanging paper, disconnected paper phenomenon.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the air diverts device that Fig. 1 provides for the embodiment of the present invention;
The flow graph that in the air diverts device that Fig. 2 provides for the embodiment of the present invention, gas flows out;
The flow graph of return air gas in the air diverts device that Fig. 3 provides for the embodiment of the present invention;
The detailed structure schematic diagram of the air diverts device that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the driving mechanism that Fig. 5 provides for the embodiment of the present invention;
Wherein, in Fig. 1-Fig. 5:
Housing 101; Interior return air seat 102; Even wind plate 103; Windsheild 104; Spray wind seat 105; Air quantity adjustment seat 106; Outer return air seat 107; Rotate handwheel 108; Dowel bushing 109; Pin 110; Screw bolt seat 111; Needle plate 112; Outer Connection Block 113; Nut 114; Paper 201.
Embodiment
The embodiment of the invention discloses a kind of air diverts device, its spray wind seat and outer return air seat interval are arranged, return air air-flow can by neighbouring above-mentioned outer return air seat return air everywhere, return air air-flow in air cushion is avoided to produce packing phenomenon, and then the gap guaranteed between air diverts device and paper width is even, avoid hanging paper, disconnected paper phenomenon.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1-Fig. 5, the embodiment of the present invention provides a kind of air diverts device, and it comprises housing 101, interior return air seat 102, spray wind seat 105 and outer return air seat 107; Even wind plate 103 is fixed in housing 101, and is fixedly connected with housing 101, and even wind plate 103 is provided with multiple equally distributed open-work, and this open-work is rectangle hole or circular hole, and reduces gradually along the aperture that flows to of wind, to reach even wind effect; Interior return air seat 102 is arranged on housing 101, and interior return air seat 102 is the bending plate with multiple flanging, and on it, each bending part is equipped with the first open-work (the first open-work is diameter is the aperture of about 10mm or 10mm, and it has even wind effect); Spray wind seat 105 is arranged on interior return air seat 102, and its number is multiple; Spray wind seat 105 covers on outside the first air-permeating hole, and spray wind seat 105 is provided with the spray air port of long narrow bar shaped; Outer return air seat 107 is arranged between adjacent spray wind seat 105; Outer return air seat 107 is connected with the return air open-work of interior return air seat 102; Above-mentioned return air open-work is connected with the interior return air channel of interior return air seat 102; Housing 101 is provided with the air draft mouth for connecting air and interior return air channel.
When applying above-mentioned air diverts device, blast tube delivers the gas in housing 101, gas in housing 101 is by even wind plate 103, again by spraying by spray wind seat 105 after interior return air seat 102, the gas of ejection forms return air under the barrier effect of paper width, return air reaches return air open-work through the outer return air seat 107 near it, and arrive air draft mouth via the interior return air channel of interior return air seat 102, air is entered again by air draft mouth, in addition, air is entered at a small amount of return air of paper width import and export and web edge place by the gap between paper width and air diverts device.
In the air diverts device that the embodiment of the present invention provides, spray wind seat 105 and outer return air seat 107 interval are arranged, return air air-flow can arrive interior return air seat 102 by neighbouring above-mentioned outer return air seat 107 everywhere, housing 101 is arrived again by interior return air seat 102, finally discharge by housing 101, thus realize return air, avoid return air air-flow packing phenomenon in air cushion, and then the gap guaranteed between air diverts device and paper 201 is even, avoid hanging paper, disconnected paper phenomenon.
Concrete, in the air diverts device that above-described embodiment provides, each bending rib of interior return air seat 102 is all parallel. In addition, above-mentioned interior return air seat 102 surrounds semicircle shape structure, and wraps in blast tube periphery. Above-mentioned spray wind seat 105 is uniformly distributed circumferentially.
Preferably, in the air diverts device that above-described embodiment provides, the windsheild 104 of the aperture for regulating air draft mouth is also comprised; Above-mentioned windsheild 104 can be slidably arranged on housing 101, concrete, and windsheild 104 is set to block all air draft mouths, and can block 0 air draft mouth. Further, above-mentioned housing 101 comprises two end plates, the side plate of two pieces of L-types and top board; The connection section that end plate comprises scallop and is fixedly connected with scallop, scallop and connecting portion are in same plane; The opening of above-mentioned L-type side plate is towards the direction away from air diverts device, and its bending part is fixedly connected with connection section, and another bending part is fixedly connected with scallop; Above-mentioned top board is fixedly connected with the connection section of two top boards with two side plates respectively; On the bending part that said exhaust mouth is arranged on side plate to be connected with scallop; Above-mentioned even wind plate 103, interior return air seat 102 are clipped between two end plates respectively, and are fixedly connected with side plate with end plate all simultaneously.
In the air diverts device that above-described embodiment provides, it is provided with the windsheild 104 of the aperture for regulating air draft mouth; Above-mentioned windsheild 104 can be arranged on housing 101 slidably. Said exhaust mouth can be set to multiple, and sets in a row, and the slip direction of corresponding windsheild 104 is identical with the arrangement direction of air draft mouth, and windsheild 104 realizes change and covers the number of air draft mouth, regulates the aperture of air draft mouth by sliding; Said exhaust mouth is set to circular hole, and accordingly, the slip direction of windsheild 104 is set to parallel with the arrangement direction of air draft mouth, and windsheild 104 covers the aperture of the quantity regulating air draft mouth of air draft mouth by change.
Preferably, in the air diverts device that above-described embodiment provides, windsheild 104 can be placed through hydrostatic control, the mode such as pneumatic or electronic controls.
Concrete, above-mentioned air diverts device also comprises the air quantity adjustment seat 106 can being slidably arranged on interior return air seat 102; Air quantity adjustment seat 106 is positioned at spray wind seat 105, and overlays on the first air-permeating hole place, and air quantity adjustment seat 106 is provided with the 2nd air-permeating hole for being connected with the first air-permeating hole, and the slip direction of above-mentioned air quantity adjustment seat 106 is the length direction of air diverts device.
Preferably, in above-mentioned air diverts device, air quantity adjustment seat 106 is slided along interior return air seat 102 by driving mechanism, and the sliding scale of air quantity adjustment seat 106 be interior return air seat 102 on corresponding with it bending part.
Above-mentioned driving mechanism comprises:
The screw bolt seat 111 with installation portion and screw rod, above-mentioned installation portion is fixedly connected with screw rod;
The outer Connection Block 113 being fixed on the end plate of housing 101, this outer Connection Block 113 is provided with open slot, and above-mentioned screw rod is through this open slot;
The dowel bushing 109 being fixedly connected with air quantity adjustment seat 106, the pin 110 of dowel bushing 109 is fixedly connected with through the installation portion of the Kong Bingyu screw bolt seat 111 of end plate on housing 101;
Wherein, screw rod is provided with and rotates handwheel 108 and nut 114, rotates both handwheel 108 and nut 114 and lays respectively at outer Connection Block 113 both sides, and nut 114 is between outer Connection Block 113 and the end plate of housing 101.
When applying this air diverts device, rotation handwheel 108 or nut 114 are rotated, screw rod can be made to stretch out or retraction housing 101, screw rod is flexible drives air quantity to regulate 106 slips, thus regulate the degree (namely regulating the aperture of the first open-work) that the waist-shaped hole of air quantity adjustment seat 106 aligns with the circular hole of interior return air seat 102, it is achieved regulate spray wind seat 105 place air quantity.
Preferably, in the air diverts device that above-described embodiment provides, the corresponding one group of drives structure of each air quantity adjustment seat 106, and often organize the corresponding one group of air quantity adjustment seat 106 of driving mechanism.
In the air diverts device that the present embodiment provides, by regulating the position of each air quantity adjustment seat 106 can regulate the air quantity in each spray wind seat 105 respectively, facilitate the air quantity in each spray wind seat 105 of user's fine adjustment and blast, it is beneficial to meet and sprays wind seat 105 everywhere to the requirement of air quantity and blast, it is ensured that paper 201 turns to smoothly.
Further, in order to facilitate user's fine adjustment air quantity adjustment seat 106, the driving mechanism of above-mentioned air diverts device also comprises the needle plate 112 being fixed in installation portion, accordingly, the scale that outer Connection Block 113 is provided with above-mentioned needle plate 112 coordinates.
In this specification sheets, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment emphasis illustrated is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the present invention. To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. an air diverts device, it is characterised in that, comprising:
Housing, described housing is fixed with and leads to the blast tube into its inside;
It is fixed in described housing, and the even wind plate being fixedly connected with described housing, described even wind plate is provided with open-work;
Arranging interior return air seat on the housing, described interior return air seat is the bending plate with multiple flanging, and on it, each bending part is equipped with the first air-permeating hole;
The multiple spray wind seats being arranged on described interior return air seat, described spray wind seat covers on outside described first air-permeating hole, and described spray wind seat is provided with the spray air port of long narrow bar shaped; With
The outer return air seat being arranged between adjacent described spray wind seat;
Wherein, described outer return air seat is connected with the return air open-work of described interior return air seat; Described return air open-work is connected with the interior return air channel of described interior return air seat; Described housing is provided with for being connected air and the air draft mouth of described interior return air channel.
2. air diverts device according to claim 1, it is characterised in that, also comprise the windsheild of the aperture for regulating described air draft mouth; Described windsheild can be slidably arranged on described housing.
3. air diverts device according to claim 2, it is characterised in that, the number of described air draft mouth is multiple, and sets in a row; The slip direction of described windsheild is identical with the arrangement direction of described air draft mouth.
4. air diverts device according to claim 1, it is characterised in that, also comprise the air quantity adjustment seat can being slidably arranged on described interior return air seat; Described air quantity adjustment seat is positioned at described spray wind seat, and overlays on described first air-permeating hole place, and described air quantity adjustment seat is provided with the 2nd air-permeating hole for being connected with described first air-permeating hole.
5. air diverts device according to claim 4, it is characterised in that, described air quantity adjustment seat is slided by the bending part of driving mechanism along described interior return air seat.
6. air diverts device according to claim 5, it is characterised in that, described driving mechanism comprises:
The screw bolt seat with installation portion and screw rod, described installation portion is fixedly connected with described screw rod;
Fixing outer Connection Block on the housing, described outer Connection Block is provided with open slot, and described screw rod is through this open slot;
With the dowel bushing that described air quantity adjustment seat is fixedly connected with, the pin of described dowel bushing is through described housing and is fixedly connected with described installation portion;
Wherein, described screw rod is provided with and rotates handwheel and nut, and described rotation handwheel and described nut lay respectively at described outer Connection Block both sides, and described nut is between described outer Connection Block and described housing.
7. air diverts device according to claim 6, it is characterised in that, described driving mechanism also comprises the needle plate being fixed in described installation portion; Described outer Connection Block is provided with and the scale that described needle plate coordinates.
8. air diverts device according to claim 5-7 any one, it is characterised in that, driving mechanism described in corresponding one group of air quantity adjustment seat described in each, and often organize described driving mechanism only air quantity adjustment seat described in corresponding a group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410293015.1A CN104030073B (en) | 2014-06-26 | 2014-06-26 | A kind of air diverts device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410293015.1A CN104030073B (en) | 2014-06-26 | 2014-06-26 | A kind of air diverts device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104030073A CN104030073A (en) | 2014-09-10 |
| CN104030073B true CN104030073B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410293015.1A Expired - Fee Related CN104030073B (en) | 2014-06-26 | 2014-06-26 | A kind of air diverts device |
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| Country | Link |
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| CN (1) | CN104030073B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289786A (en) * | 2022-01-25 | 2022-11-04 | 无锡佰特尔工业设备有限公司 | 90/180 air-float steering gear for oven |
| CN116067158B (en) * | 2023-02-07 | 2023-07-04 | 无锡爱德旺斯科技有限公司 | Air supporting oven |
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| DE3049790A1 (en) * | 1980-03-11 | 1983-06-16 | Vits-Maschinenbau Gmbh, 4018 Langenfeld | Rotating cylinder used for deflection of ribbon material, has external radial grooves of flat VEE-profile and radial holes are provided at base of these grooves, and two axial edges of box includes flexible strips with axial folds |
| DE3910600A1 (en) * | 1989-04-01 | 1990-10-04 | Voith Gmbh J M | ONE SCREEN DRYING GROUP |
| US5797531A (en) * | 1995-10-24 | 1998-08-25 | Heidelberger Druckmaschinen Ag | Differential-pressure turner bar configuration |
| CN1293109A (en) * | 1999-10-13 | 2001-05-02 | 海德堡印刷机械股份公司 | Paper steering device used on paper delivery cylinder printing machine |
| US6502735B1 (en) * | 1993-10-11 | 2003-01-07 | Kreiger Gmbh & Co. | Device for the suspension guidance of a travelling web |
| CN2856112Y (en) * | 2006-01-24 | 2007-01-10 | 河南省江河纸业有限责任公司 | Air steering gear |
| DE102008005659A1 (en) * | 2008-01-23 | 2009-08-13 | Gerhard Bach | Deflection element for deflecting flexible flat material in printing industry, has vent opening formed in conducting surface and connected with atmosphere by vent channel penetrating guide wall |
| CN201924230U (en) * | 2010-12-09 | 2011-08-10 | 沙市轻工机械有限公司 | Slit type air steering gear |
| CN204057382U (en) * | 2014-06-26 | 2014-12-31 | 湖南正大轻科机械有限公司 | A kind of air steering gear |
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2014
- 2014-06-26 CN CN201410293015.1A patent/CN104030073B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3049790A1 (en) * | 1980-03-11 | 1983-06-16 | Vits-Maschinenbau Gmbh, 4018 Langenfeld | Rotating cylinder used for deflection of ribbon material, has external radial grooves of flat VEE-profile and radial holes are provided at base of these grooves, and two axial edges of box includes flexible strips with axial folds |
| DE3910600A1 (en) * | 1989-04-01 | 1990-10-04 | Voith Gmbh J M | ONE SCREEN DRYING GROUP |
| US6502735B1 (en) * | 1993-10-11 | 2003-01-07 | Kreiger Gmbh & Co. | Device for the suspension guidance of a travelling web |
| US5797531A (en) * | 1995-10-24 | 1998-08-25 | Heidelberger Druckmaschinen Ag | Differential-pressure turner bar configuration |
| CN1293109A (en) * | 1999-10-13 | 2001-05-02 | 海德堡印刷机械股份公司 | Paper steering device used on paper delivery cylinder printing machine |
| CN2856112Y (en) * | 2006-01-24 | 2007-01-10 | 河南省江河纸业有限责任公司 | Air steering gear |
| DE102008005659A1 (en) * | 2008-01-23 | 2009-08-13 | Gerhard Bach | Deflection element for deflecting flexible flat material in printing industry, has vent opening formed in conducting surface and connected with atmosphere by vent channel penetrating guide wall |
| CN201924230U (en) * | 2010-12-09 | 2011-08-10 | 沙市轻工机械有限公司 | Slit type air steering gear |
| CN204057382U (en) * | 2014-06-26 | 2014-12-31 | 湖南正大轻科机械有限公司 | A kind of air steering gear |
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| Publication number | Publication date |
|---|---|
| CN104030073A (en) | 2014-09-10 |
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