CN1153086A - Application unit for direct or indirect application of liquid or pasty medium onto moving meterial web - Google Patents
Application unit for direct or indirect application of liquid or pasty medium onto moving meterial web Download PDFInfo
- Publication number
- CN1153086A CN1153086A CN 96111896 CN96111896A CN1153086A CN 1153086 A CN1153086 A CN 1153086A CN 96111896 CN96111896 CN 96111896 CN 96111896 A CN96111896 A CN 96111896A CN 1153086 A CN1153086 A CN 1153086A
- Authority
- CN
- China
- Prior art keywords
- gap
- spray equipment
- liquid
- moulding
- moulding band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Nozzles (AREA)
Abstract
The invention relates to an application unit for the direct or indirect application of a liquid or pasty medium (12) onto a moving material web, in particular consisting of paper or board, comprising a dosing gap formed as a free jet nozzle, the dosing gap being formed between a leading lip (4) and a trailing lip (8), and at least one feed channel (14) leading to the dosing gap. The application unit is characterized in that the dosing gap is subdivided in a comb-like manner and has a plurality of defined through-gaps (32) for the liquid or pasty medium (12).
Description
The present invention relates to a kind of be used for directly or indirectly liquid or resisting medium are sprayed on spray equipment on the mobile material plate, plate of material especially comprises paper or cardboard.
In spray equipment, between two edge, constituted the dosage gap, this dosage gap is promptly as the discharge rate mechanism that controls free-jet nozzle.This dosage gap is also referred to as the pigment vent gap.Cross surrounding air and constitute free jet owing to liquid or sticking MEDIA FLOW, therefore this spray equipment also can be described as " self-injection flow-generator (Jet FlowF).By free jet, liquid or resisting medium just are sprayed on the mobile material plate directly or indirectly.
In these spray equipments, liquid or resisting medium are provided by the pigment distributing pipe of the inside that is configured in the beam that extends along spray equipment length usually.Medium enters compensatory zone through running through otch from the pigment distributing pipe, flow into the dosage gap via the feeding passage thus, and liquid or resisting medium are discharged with the free jet form then.Under the direct spraying situation of medium, plate of material is by free-jet nozzle, and the free jet of liquid or resisting medium directly impacts this plate of material.At this moment, for example plate of material can be led on the roller surface.Under the indirect spraying situation of medium, free jet at first sprays to one and carries the surface, on spraying roller surface, transmits in the roller gap then, and material is rolled onto on the plate of material from spraying thus.Constituting the dosage gap has two edge, wherein is positioned at the leading edge that is called of dosage gap one side, and in this side dosage gap, the plate of material when spraying roller when medium sprays indirectly or medium directly spray moves towards spray equipment.In addition, second edge that is positioned at dosage gap opposite side is called trailing edge, and in this side dosage gap, spraying roller or plate of material deviate from spray equipment and move.Leading edge can comprise a concave reflecting surface.
Usually, in the spray equipment of former described type, on trailing edge, be furnished with governor motion,, can be regulated the distance between trailing edge and leading edge along the spray equipment length direction by the district by this governor motion.Because this adjusting in dosage gap can make liquid or resisting medium be sprayed on the plate of material with certain cross sectional shape.Usually, be furnished with refinement dosage mechanism in the outlet of free jet generator, this mechanism is adjusted to needed quantity for spray to the liquid or the resisting medium of spraying by adjusting vane parts (as the cutter blade).In addition, in order to collect the unnecessary liquid or the resisting medium of discharging in spray equipment or the refinement dosage mechanism, between the trailing edge of spray equipment and refinement dosage mechanism, disposed feeder.
In the former described common spray equipment, the accurate adjusting of dosage gap or pigment vent gap is to require great effort very much time-consumingly, and it is very expensive to be used for regulating the shaping mechanism in gap.Especially, when the type change of liquid or sticking medium, readjusting of dosage gap is very uneconomical.In addition, because therefore fine finishining sum of errors assembly error can not guarantee the precise volumes dosage on the whole plate width reliably.
Therefore, the purpose of this invention is to provide a kind of spray equipment and a kind of method, using method can be simply, effectively the gap is accurately regulated, thereby realize the precise volumes dosage on the whole plate width, and also can simply promptly regulate when type change again.
Just can realize this purpose by comprising in the claim 1 spray equipment of the present invention of feature.
Owing to be subdivided into pectination as free-jet nozzle and along the dosage gap that the spray equipment length direction extends and comprise the refinement outlet gap of a plurality of liquid or resisting medium, thereby can advantageously dispose the otch that runs through of a large amount of point-device liquid or resisting medium.These be refined into pectination the dosage gap run through otch or the gap plays a part free-jet nozzle, liquid or resisting medium are discharged with the free jet form thus.Evened up into uniform thickness owing to run through liquid that the given shape in gap produces or " the nozzle dike " in the resisting medium at the concave curvatures place of leading edge, thereby can be obtained fairly regular and high-quality coating on the plate of material.Therefore, generally speaking, spray equipment of the present invention can obtain simple, effective, the accurate volume dosage of liquid or resisting medium on whole plate width.In addition, spray equipment of the present invention can also be controlled liquid or the distribution of resisting medium on plate of material.
According to useful design feature of the present invention, the flow area that refinement runs through the gap reduces on the flow direction of liquid or resisting medium.At this moment, flow section to reduce can be continuous or stepping.Like this, can effectively control flowing and pressure condition of liquid or resisting medium.
The useful embodiment of another of spray equipment of the present invention is characterised in that: run through the gap and be scheduled to run through otch by a plurality of in dosage gap outlet or in the outlet and constitute.For example, these run through otch (preferably be configured on the wall in actual dosage gap or be configured in the separation structure element that is arranged on dosage gap or the dosage gap) can be the simple core hole in permanent cross section or diminish gradually towards flow direction, perhaps has more complex cross-sectional shape, run through otch etc. as lenticular, and these run through otch have identical or different size and/or have the rule or irregular collocation form.
In this explanation, it is effective that another embodiment is proved to be, wherein, flow direction according to liquid or resisting medium in the dosage gap, joined the distribution passage in the front of running through otch, this distribution passage with run through that otch is connected and extend along the longitudinal extension direction that is parallel to the dosage gap substantially.So just, guaranteed all even permanent distribution in running through otch of liquid or resisting medium.
According to another embodiment of the present invention, run through the gap and be positioned on dosage gap or the dosage gap by at least one and separator with tooth profile constitutes.For example, this separator can be made of corrugated metal sheet, and " trough " and " crest " that is surrounded by the dosage gap constituted a plurality of gaps of running through of liquid or resisting medium.At this moment, the profile of separator, promptly " trough " can have different shapes and different configuration modes with " crest ", thereby obtains identical or different running through the gap and run through gap configuration.In addition, at least one separator can be formed with a plurality of parts by one.
According to the present invention, at least one separator is surrounded by two spigot surfaces, and these two spigot surfaces are extended to outside the outlet in dosage gap and as liquid or resisting medium and flow out the guiding parts of dosage gap to spraying position.These guide surfaces are preferably even surface, no toothed surface, smooth or curved surface.
According to another useful embodiment of spray equipment of the present invention, run through the gap and constitute by one or more spigot surfaces that are positioned on dosage gap or the dosage gap.For example, similar with aforementioned separator, the spigot surface outside this outlet that protrudes into the dosage gap can be made of thin wavy metal plate, and the refinement that " trough " and " crest " that is surrounded by the wall in dosage gap constituted a plurality of liquid or resisting medium runs through the gap.The profile of spigot surface, promptly " trough " at this moment extends along parallel with flow direction substantially direction with " crest ", and has difformity and configuration mode, thereby obtains identical or different running through the gap and run through gap configuration.Therefore, in the ordinary course of things, spigot surface has two functions, flows out the guiding parts of dosage gap to spraying position as liquid or resisting medium on the one hand, replaces the above-mentioned gap of running through on the other hand.
In addition, in according to another embodiment of the present invention, leading edge and/or trailing edge are furnished with pectination moulding gap, to constitute along being in substantially parallel relationship to a plurality of gaps of running through that liquid in the feeding passage or resisting medium flow direction extend.Like this, on whole plate width, can carry out the adjustment of effective and accurate gap, and then obtain the precise volumes dosage of liquid or resisting medium.
This embodiment shows that also at least one spigot surface of configuration liquid or resisting medium is favourable between leading edge and trailing edge.Like this, liquid or resisting medium can flow and the spraying position that very accurately leads along the two sides of spigot surface.
According to another useful design feature of the present invention, in the dosage gap, disposed a moulding band, this moulding band has a plurality of refinements and runs through the gap, and these run through the gap along being parallel to liquid or the extension of resisting medium flow direction in the feeding passage substantially.A large amount of liquid or point-device otch that runs through of resisting medium like this, just are provided.Especially, when use was positioned at moulding band on leading edge or the trailing edge, the moulding band can accurately be pressed on each corresponding edge, promptly on leading edge or the trailing edge.Therefore in fact can full remuneration assembling and foozle, and must not carry out pattern processing again.The moulding band run through the gap also as free-jet nozzle, liquid or resisting medium are discharged with the free jet form.In addition, because the discharge liquid that moulding band given shape produces or " the nozzle dike " of resisting medium are become the uniform thickness film at the concave curvatures place of leading edge by equilibrium, thereby on plate of material, obtain fairly regular and high-quality coating.In addition, can also on whole plate width, obtain simple, effective and point-device gap adjustment, and then realize the precise volumes dosage of liquid or resisting medium by the moulding band.In addition, according to design feature of the present invention, can control the distribution on plate of material of liquid or resisting medium, can more easily clean the moulding band, and when using more moulding band, can be manually or regulate the cross section of running through the gap of moulding band automatically, and when type change, can also simply and promptly be adjusted to the liquid or the resisting medium of other type.
In another effective embodiment, the moulding band can move along being parallel to its direction that vertically extends substantially.In addition, according to this invention, disposed the moulding band that two or more front and back replace on the flow direction of liquid or resisting medium in the feeding passage, these moulding bands can be done relative motion on the direction that is parallel to its longitudinal extension substantially.Utilize this moulding band, can on purpose control liquid or the distribution of resisting medium on plate of material, especially, when using two or more moulding band, can realize the reasonable adjustment in machine works process gap, thereby can realize the accurate volume dosage relevant, according to selected gap shape with employed different liquids or resisting medium type, when aforementioned two moulding bands are shifted relatively, can in a big way, be regulated in the gap of running through to liquid or resisting medium.
For this reason,, disposed at least one driving mechanism, be used for driving the moulding band along the direction that is parallel to its longitudinal extension substantially according to the present invention.This driving mechanism can be mechanical, electronic, waterpower or pneumatic means etc.For example, the most simply, link to each other and promptly can be used as driving mechanism with one or more moulding band and use by electric motor driven leverage.
According to employed one or more moulding band, the shape in the above-mentioned pectination moulding gap on leading edge and/or the trailing edge preferably with the moulding band to run through the gap corresponding.For example, the effect of the above-mentioned second moulding band can be played in this moulding gap, and this moulding band is arranged in the feeding passage (along the flow direction of liquid or resisting medium as seen) of the first moulding band front or back.Like this, just, can realize the reasonable adjusting and the dosage in above-mentioned gap.
According to another effective design feature of the present invention, in the dosage gap, disposed two moulding bands of mutual correspondence, and each of these moulding bands runs through the otch that runs through that the gap has constituted liquid or resisting medium together.Two moulding bands can have identical or different shape, so just can provide a large amount of various embodiment according to the cross sectional shape that runs through otch, configuration and regulative mode.
According to the foregoing description, between two relative moulding bands, should dispose at least one spigot surface.Like this, the spraying position but two side flow of liquid or resisting medium spigot surface also accurately lead.
In addition, the moulding band is preferably in substantially on the direction perpendicular to liquid in the feeding passage or resisting medium flow plane movable towards leading edge or trailing edge.Especially, when using two relative moulding bands, this movable configuration of at least one can be used for changing the cross section of running through the gap in two moulding bands.In addition, according to the present invention, disposed at least one hold-down mechanism, this hold-down mechanism connects or directly presses to leading edge or trailing edge along the steering handle moulding interband perpendicular to the flow plane of liquid or resisting medium in the feeding passage substantially.Movable configuration with aforementioned moulding band, especially when the single moulding band of use, a side that contains the moulding band that runs through the gap is pressed on the surface facing to the leading edge of feeding passage, and constitutes accurate refinement otch (with regard to its flow area) a plurality of separations, little and that can allow liquid or resisting medium pass through.So just, on whole plate width, realized the accurate dosage of liquid or resisting medium.
In principle, any suitable machinery, electric, magnetic force, pneumatic or waterpower mechanism etc. all can be used as aforementioned realization above-mentioned purpose hold-down mechanism.For example, can infer, compression spring, the magnet of opposite polarity or movable cylinder shape hydraulic mechanism all can be used as hold-down mechanism.But rational and effective hold-down mechanism is a tubular part, and this tubular part produces the distortion pass down in the effective effect of medium (as compressed air) and plays required effectiveness.In spray equipment of the present invention, this mechanism makes especially simple, and it is very easy to assemble.
In order to adapt to the different embodiment of spray equipment of the present invention, the moulding band preferably has rectangle, polygon, circle, ellipse or sector crosssection substantially.In principle, also can use other cross sectional shape that is different from above-mentioned section form, as curved cross section etc.
The moulding band is preferably made by elastomeric material or copper product.The moulding band that elastomeric material is made is flexible, especially can abut against on the leading edge surface facing to the feeding passage.On the other hand, consider the better material pairing, for the edge that is made of copper usually, the moulding band of bronze material is more suitable.But, also can adopt the pairing of other material and material in essence.
The present invention also limits, and the free end of moulding band interconnects, thereby the moulding band constitutes a closed hoop on its vertical extension direction.Here, adopt elastomeric material particularly suitable.Closed annular moulding band can more easily move along being parallel to the vertical direction that extends of moulding band substantially.At this moment, the closed moulding band can be led by steering mechanism, and steering mechanism itself can be used as driving mechanism.In addition, can also easily realize the continuous motion of moulding band on aforementioned direction by this closed moulding band.
The moulding band preferably is configured on the leading edge and/or trailing edge of spray equipment, because in order to be used as the moulding band free-jet nozzle of spray equipment, this configuration mode is particularly reasonable.
In addition, from the longitudinal section, the shape that runs through the gap of moulding band is preferably waveform, sinusoidal or trapezoidal substantially, even for certain flow behavior (especially when using dissimilar medium) of the flow area that obtains accurate refinement and liquid or resisting medium, can also make the material section that surrounds the moulding band that runs through the gap is the profile of tooth cross section.In addition, when using two or more moulding band (on the flow direction of moulding band liquid or resisting medium in the feeding passage mutually alternately before and after configuration), because the aforementioned configuration that runs through the gap, thereby the moulding band can relatively move along being parallel to substantially on its direction that vertically extends, and then can in the course of work of spray equipment of the present invention, realize point-device gap adjustment and dosage to liquid or resisting medium.
About the size of common spray equipment, the gap depth that runs through the gap of moulding band is proved to be useful in 0.5 to 4mm scope.If comparing in shape containing moulding band and the tooth bar that a plurality of refinements run through gap (two adjacent materials cross sections by the moulding band surround respectively), so, just can determine the modulus of moulding band according to the profile of tooth correlation technique.The modulus that contains the moulding band of profile of tooth material section is positioned at 0.25mm to the 3mm scope.But, according to the difference of type of service, above-mentioned size and numerical value can great changes have taken place.
For operation and maintenance spray equipment of the present invention, the moulding band preferably removably or regularly be contained in the maintaining body or maintaining body on.Especially, dismountable assembling mode can take down and change the moulding band at an easy rate so that safeguard or change liquid or resisting medium.
In addition, it is flexible that maintaining body is preferably, thereby maintaining body and dress moulding band thereon together can be by suitable hold-down mechanism along compressing towards leading edge or trailing edge on the direction perpendicular to the flow plane of liquid or resisting medium in the feeding passage substantially.Thereby the moulding band can be pressed on the corresponding edge and constitute the otch that runs through with accurate refinement flow area.
According to the present invention, maintaining body comprises at least a portion feeding passage.In common spray equipment the feeding passage generally by the wall of leading edge and the wall that can amount to (clean with) edge constitute, and now according to the present invention, the feeding passage is that the integral part as maintaining body constitutes, thereby the structure of spray equipment is significantly simplified.This also is favourable for reducing manufacturing cost.
Protrude into safety disc in the distributing pipe of spray equipment if maintaining body has to small part, so by the slat in the pipe can be easier with more reliably maintaining body is connected with distributing pipe.The structural integrity that this structure makes maintaining body better, more simplify.
Maintaining body preferably includes filter mechanism.If maintaining body is to link to each other with distributing pipe by the safety disc that protrudes in the pipe, so, filter element is positioned at distributing pipe and can filters out impurities, and reduces the gas that may exist in liquid or the resisting medium.Can save common degasification mechanism like this.
Because in aforementioned overall structure pattern, maintaining body can not be as cleaning by the antetheca that is folded open in common spray equipment, therefore, according to the present invention, maintaining body comprises sonic generator.By the effect of sonic generator, the impurity in the feeding passage can be loosened simply and effectively, and is removed with liquid or resisting medium in cleaning process.
For fear of because the impurity that liquid or resisting medium or its sediment produce, disposed discharging face with moulding band adjacency in a side of the moulding band of corresponding edge.
The feeding passage of spray equipment of the present invention is design like this, promptly diminishes gradually continuously towards the moulding band.So just, on whole plate width, increase the pressure compensation in the feeding passage, and obtained the even distribution and the dosage of liquid or resisting medium.
At last, disposed at least one wiper mechanism that is used for cleaning the moulding band in the spray equipment of the present invention.This wiper mechanism can be designed to a groove that is full of or flows through cleaning agent etc., and perhaps this wiper mechanism can be one and cleaning agent is sprayed onto spraying mechanism on the moulding band etc.First kind of form of wiper mechanism more is applicable to the moulding band of closed annular.
According to another effective design feature of the present invention, towards liquid or resisting medium flow direction flow channel that diminishes gradually and the outlet side adjacency that runs through the gap.
As previously mentioned, in one embodiment of the invention, directly be used to balanced liquid or resisting medium flows out " the nozzle peak " and " nozzle paddy " that dosage gap (promptly running through the gap) is produced with the spill steering surface that runs through the gap adjacency, then, medium impacts on the spraying roller relative with spray equipment with the free jet form or impacts on the plate of material of moving on the intermediate calender rolls.When liquid that uses certain type or resisting medium, have been noted that owing to used and the spill steering surface that runs through gap port of export adjacency, can not or not the coating film that can obtain required uniform thickness therefore.Can on plate of material, produce the coating of uneven gauge like this, thereby reduce the product quality that this spray equipment is produced.As a result, even use to be difficult to the liquid or the resisting medium of processing, spray equipment of the present invention also must dispose additional mechanism providing additional operation obtaining having the uniform coating of same thickness on the width of spray equipment, thereby obtains fairly regular and high-quality coating.Since flow channel and the port of export that runs through the gap in abutting connection with and reduce gradually towards the flow direction of liquid or resisting medium, usually can not or not can be by the liquid that uses the spill steering surface to be processed into to accept coating film or resisting medium the time when using those so, now also can on plate of material, obtain the coating of uniform thickness, thereby obtain high-quality product.
In an effective embodiment of the present invention, above-mentioned flow channel diminishes continuously or discontinuously gradually along the flow direction of liquid or resisting medium.Like this, the geometry of flow channel can be adapted to the various types of service of the shape that runs through the gap, each flox condition and the liquid or the resisting medium in dosage gap.
Another effective design feature of the present invention is: the flow section of flow channel is adjustable.This controllability can be adapted to control the different coefficient correlation of the coating quality of being produced simply rapidly, for example, and employed liquid or resisting medium type, flow velocity in the flow channel and free jet speed etc.
In this respect, the flow section that has proved flow channel is preferably adjustable and/or be locally to select adjustablely on the whole width of spray equipment, for example can regulate district by district on the width of spray equipment.Local selection can be regulated and can be used for compensating local foozle, or is used for obtaining the different cross section shape of liquid or resisting medium, for example, is smooth at the edge of plate of material.
If the outlet side zone of running through the gap in dosage gap is furnished with local attenuation part in leading edge and/or trailing edge, this part attenuation partly makes the flow section of flow channel have controllability, so, adopt foolproof method (this method is effective for the flow boundary limit) just can realize adjusting as required to the channel cross-section that flows.
In another effective embodiment of the present invention, at least one wall of flow channel is that tabular or sheet component constitutes by at least one, these parts can towards or to deviate from each corresponding leading edge or trailing edge motion and make the flow section of flow channel be adjustable.Strain by these parts itself or by with edge between reasonable pivot or hinge be connected, just can make this component movement.When regulating the flow section of flow channel, the tabular or sheet component that constitutes flow channel wall conducts the pivot motion usually.But also can drive this parts by translation mode.In addition, tabular or sheet component can have the security system of oneself, but is installed on the correct position of edge with being used for fixing ground or demolition.This security system itself can comprise above-mentioned hinged or pivotally connected with edge, perhaps comprises another parts of purposes for this reason.Therefore can adopt more simple and effective way on demand the channel cross-section that flows to be regulated again.
According to the present invention,, disposed at least one regulating mechanism to regulate the flow section of flow channel as another design feature.This governor motion manually or automatically, governor motion also comprises and can control and/or the governor motion of remote-controllable system automatically.Automatically governor motion is particularly useful in the course of work of spray equipment flow channel being regulated.The control of governor motion can independently be carried out, and the control of governor motion is carried out with the control of other parts of spray equipment.Especially, comprise automatic governor motion in automatic control circuit, this automatic control circuit controls to adjust mechanism according to the measured value of the section configuration of liquid that sprays or resisting medium.So just, make spray equipment full out adapt to various change condition, as the use of disorderly or dissimilar liquid or resisting medium in the course of work.
Verified, structurally, this governor motion preferably is configured in leading edge and/or the trailing edge or fits on leading edge and/or the trailing edge.
The effective embodiment of other of governor motion comprises regulation mechanisms such as adopting machinery, waterpower, pneumatic, electronic, heating power, magnetic force, magnetostriction or piezoelectricity.These regulation mechanisms can be achieved by different version, also can be achieved in the mode that the regulation mechanism and the principle of work and power combine.For example, regulate screw thread, lever principle, electronic, pneumatic or hydraulic regulator or servomotor or the like all can be used.
Another design feature of the present invention is: the spill steering surface of liquid or resisting medium and flow channel adjacency, this spill steering surface can be pivoted around being parallel to substantially in the vertical exit region of axle at flow channel that extends of spray equipment.So just, make liquid or the resisting medium angle of attack on spraying roller or move materials plate in a big way, carry out point-device adjusting., need only simply regulate, promptly the very little parts of spray equipment (being the spill steering surface) pivot for this reason, thereby when having significantly reduced worker and manufacturing cost.In addition and since adjusting or displacement produced the power on the spray equipment structure member of acting on of spill steering surface can be controlled very little, thereby can obtain more economical tactic pattern.In addition, when regulating, liquid or resisting medium on spraying roller or move materials plate " truncation Line can not produce remarkable displacement.What also must emphatically point out is: can carry out fully independently of each other by the adjusting that the spill steering surface is pivoted regulate angle of attack and flow channel flow section.
In addition, verified, the spill steering surface is preferably in the exit region in dosage gap around being parallel to the axle that spray equipment vertically extends substantially and is pivoted district by district.For this reason, the spill steering surface is subdivided into a plurality of districts.Like this, liquid or the resisting medium angle of attack on the move materials plate can be done local the change, thereby can control the spraying state of plate of material.For example, can compensate local foozle or can on plate of material, produce specific profiled outline like this.By evenly swinging the spill steering surface district by district, obviously also can on the whole length of spray equipment, obtain the integrally-regulated of angle of attack.
By means of at least one suitable adjusting or switching mechanism, can be aforesaid with regulate angle of attack be purpose the spill steering surface swing or pivot, this adjusting or switching mechanism can be manual and/or automatic, and/or Long-distance Control.
Be used for also can realizing initial purpose of description of the present invention to liquid or the even dosage of the resisting medium course of work (comprising the feature in the claim 29) on the spraying roller by employing.The advantage of this process is carried out description together with spray equipment of the present invention.
The another embodiment of the course of work of the present invention is: in order to regulate the quantity for spray of liquid or resisting medium, also can change the circulation area that runs through the gap of adjusting position.
Following with reference to accompanying drawing, the details and the advantage of embodiments of the invention is described in detail and explains.Wherein:
Fig. 1 is the schematic cross-section of first embodiment of expression spray equipment of the present invention,
Fig. 2 is the enlarged diagram in the X zone of first embodiment of moulding band of the present invention in the presentation graphs 1,
Fig. 3 cuts open and rotates about 90 ° side schematic view along Fig. 2 center line A-A for expression,
Fig. 4 is the enlarged diagram of expression according to the moulding band of second embodiment,
Fig. 5 is the basic schematic diagram of expression the 3rd embodiment of the moulding band of the present invention shown in the arrow P 3 in Fig. 1,
Fig. 6 is the schematic diagram that is similar to Fig. 2 of the 4th embodiment of expression moulding band of the present invention,
Fig. 7 is the schematic diagram that is similar to Fig. 2 of the 5th embodiment of expression moulding band of the present invention,
Fig. 8 is the schematic diagram that is similar to Fig. 2 of the 6th embodiment of expression moulding band of the present invention,
Fig. 9 is the schematic cross-section of second embodiment of expression spray equipment of the present invention,
Figure 10 is the schematic cross-section of the 3rd embodiment of expression spray equipment of the present invention,
Figure 11 a is to the schematic diagram of 11e for the 7th embodiment of expression moulding band of the present invention, and Figure 11 a is similar to Fig. 2,
Figure 12 a and Figure 12 b are respectively schematic cross-section and the floor map of the 8th embodiment of expression moulding band of the present invention, and Figure 12 a is similar to Fig. 2,
Figure 13 a and 13b are respectively floor map and the schematic cross-section that expression the present invention runs through another embodiment in gap,
Figure 14 a and Figure 14 b are respectively floor map and the schematic cross-section that expression the present invention runs through the another embodiment in gap,
The present invention that Figure 15 is made of the shelf-shaped spigot surface for expression runs through the floor map of the another embodiment in gap,
Figure 16 a and 16b are respectively floor map and the schematic cross-section of the another embodiment that runs through the gap that expression is made of dividing plate,
Figure 17 a and Figure 17 b are respectively floor map and the schematic cross-section that expression the present invention runs through the another embodiment in gap,
Figure 18 is the enlarged diagram that is similar to Fig. 2 of the 4th embodiment of expression spray equipment of the present invention,
Figure 19 is the schematic cross-section of the subregion of the 5th embodiment of expression spray equipment of the present invention, and
Figure 20 is the schematic cross-section of the subregion of the 6th embodiment of expression spray equipment of the present invention.
For fear of repetition, in the following description, identical structure member all invests same reference numerals, and is no longer further distinguished.
As shown in Figure 1, in schematic cross-section, first embodiment of spray equipment 2 of the present invention comprises a beam 20 that extends on the whole length of spray equipment.A distributing pipe 18 is arranged in beam 20, and this pipe also often is called the pigment distributing pipe, is used for applying liquid or resisting medium.This distributing pipe 18 links to each other with compensation space 16 (extending with feeding passage 14 forms) by through hole 24.The opening of feeding passage 14 points to the dosage gap of a shape such as free nozzle, and the dosage gap is between leading edge 4 and trailing edge 8.The shape that feeding passage 14 is preferably so promptly reduces gradually towards the dosage gap.Dosage gap shape such as pectination also have a plurality of thinner gaps of running through that allow liquid or resisting medium pass through.What be used as the dosage gap in the present embodiment is a moulding band 30, hereinafter will be described in detail.In addition, compare with common spray equipment, in order to obtain along the pressure compensation of entire machine width, feeding passage 14 is wideer relatively in the zone of moulding band 30.
Stretch out outside on the last free end of free-ended leading edge 4 of trailing edge 8 a spill steering surface 10 is arranged.Liquid or resisting medium and its flow direction are indicated by arrow 12.A spraying roller 26 is arranged on spray equipment 2 opposites, be used for spraying indirectly employed medium.The rotation direction of spraying roller 26 is by arrow P 1 indication.
The antetheca 22 that is fixed with trailing edge 8 rigidly fixes when work, but can amount to so that clean around hinge 28 in case of necessity.The rear end of antetheca 22 (side that promptly deviates from feeding passage 14) has constituted the discharge face of unnecessary liquid or resisting medium.
In this spray equipment according to Fig. 1, liquid or resisting medium 12 at first infeed via pigment distributing pipe 18, enter compensated cavity 16 then and flow through feeding passage 14 by the gap 32 of running through of moulding band 20, thus, medium forms the free jet (not shown), and this jet is owing to the effect of the concave reflecting surface 10 of leading edge 4 produces along the tangential skew of spraying roller 26.Liquid or resisting medium with this free jet form act on the spraying roller 26, then, it is (not shown that MEDIA FLOW is crossed outlet refinement dosage mechanism, the spraying medium is adjusted to required use amount at this), be sprayed on the roller gap, the plate of material that is made of paper or cardboard or fibrous material is by this gap, thereby picks up liquid or resisting medium from spraying roller 26.
In this embodiment, can also be governor motion of leading edge 4 configurations.But not shown in the drawings this governor motion.
In Fig. 2, represented the enlarged diagram of regional X among Fig. 1, thus further detail knowledge according to moulding band 30 and its configuration of first embodiment.
Moulding band 30 is configured on the trailing edge 8 and along the whole width that sprays roller 26 and extends.By Fig. 2 equally as seen, have the square-section substantially according to the moulding band 30 of present embodiment, the one end is placed in the retaining groove and is positioned at the upper area of trailing edge 8.The degree of depth of groove 38 is greater than the degree of depth of moulding band 30, thereby the moulding band 30 in the assurance groove can move along the direction perpendicular to the flow surface of liquid or resisting medium 12, and liquid or resisting medium 12 flow to leading edge 4 (in by figure shown in the arrow P 2) in feeding passage 14.The compacting part that is configured between groove 38 substrates and moulding band 30 rear sides compresses moulding band 30 directly or indirectly along the direction perpendicular to liquid in the feeding passage 14 or resisting medium 12 flow planes.At this moment, this compacting part of shape such as tubular part 40 produces distortion under the use of media such as compressed air, thereby under the direct effect of power moulding band 30 is moved along aforementioned direction P2.Dispose an organization of stres (not shown), this organization of stres applies effective pressure to the medium in the tubular part 40 for this reason.By removing tubular part 40, moulding band 30 can be taken off rapidly so that clean.
Fig. 3 has represented to cut the also longitudinal cross-section schematic diagram of half-twist open along A-A line among the figure.Among the figure, moulding band 30 comprises a plurality of refinements and runs through gap 32, and this runs through gap 32 and parallels with the flow direction of liquid or resisting medium in the feeding passage 14 substantially.According to Fig. 3, penetrating via 32 has waveform or sinusoidal shape.In addition, the gap 32 of running through of moulding band 30 faces leading edge 4, therefore moulding band 30 faces under the effect of tubulose hold-down mechanism 40 towards the surface 6 of the leading edge 4 of feeding passage 14, wherein the dentation material top 34 of adjacent moulding band abuts against on the aforementioned surfaces 6 with running through gap 32 respectively, and therefore running through gap 32 has constituted a plurality of little spacing otch that can allow liquid or resisting medium 12 flow through.
Fig. 4 has represented the longitudinal cross-section enlarged diagram according to the moulding band 30 of second embodiment.At this moment, running through otch 32 and be substantially trapezoidally, is dentation in abutting connection with the material section Z that runs through the moulding band 30 of otch 32 promptly.The width of the gap substrate 36 between the width A of single " tooth top " 34 of material section Z and two adjacent sections Z needn't necessarily equate.In addition, the inclination angle, side of the cross section Z in single moulding band 30 can change.Can do similar processing to each other gap shape that is used for moulding band of the present invention equally.The gap depth that runs through gap 32 (t) of moulding band 30 is preferably in 0.5-4mm.If moulding band 30 is likened to tooth bar, the modulus of moulding band is preferably in 0.25mm in the scope of 3mm so.But above-mentioned size should change with type of service is different with numerical value.
By among Fig. 4 shown in the four-headed arrow, the moulding band 30 among the present invention can move along the direction that is parallel to its longitudinal extension.In addition, according to the present invention, can dispose two or more moulding bands in series, the flow direction of liquid or resisting medium in the feeding passage 14, a moulding band is positioned at after another moulding band, and these moulding bands can be on the direction that is parallel to its each longitudinal extension D substantially the phase double replacement.In Fig. 4, be shown in broken lines the second moulding band 30.2.The advantage of two or more mutual replaceable moulding bands is: both made under the duty of machine and when inhomogeneous liquid or resisting medium are used, can realize rational gap adjustment and volume dosage fully.According to selected gap geometry, what allow liquid or resisting medium flow through runs through gap 32 and can in very large range be adjusted by the change of moulding band 30 and 30.2 relative configuration.In addition, because the motion of moulding band 30 can exert an influence to the distribution of liquid on the plate of material or resisting medium.Not shown among Fig. 4 according to the suitable exercise mechanism that moves or regulate moulding band 30,30.2 of being used for provided by the invention.
In addition, according to the present invention, leading edge 4 is furnished with pectination moulding gap, constitute a plurality of parallel with the flow direction of liquid or resisting medium in the feeding passage 14 substantially run through the gap.This moulding gap of leading edge 4 is to constitute like this, promptly this gap shape and moulding band 30 to run through gap 32 corresponding.Like this, the otch that runs through that gap 32 has constituted liquid or resisting medium 12 together that runs through that runs through moulding gap and moulding band 30 of leading edge 4.The moulding gap of leading edge 4 can be extend the boss of actual outer rim.According to Fig. 4, also can be configured in the front or the back of moulding band 30 to the moulding gap along the flow direction of liquid or resisting medium 12, thereby the moulding gap can be played the effect of the second moulding band 30.2 fully.Not shown leading edge is furnished with the embodiment in this moulding gap.
The advantage that has manifested the movable configuration of moulding band 30 of the present invention among Fig. 5 more.According to the direction indication of arrow P among Fig. 13, represented the basic signal sketch of the 3rd embodiment of moulding band of the present invention.At this moment, moulding band 30 is a banded closed circuit on its vertical extension direction, and this loop is by several steering mechanism's 42 guiding, and one of them steering mechanism is as the driving mechanism that promotes moulding band 30.Show the motion of moulding band 30 among Fig. 5 with double-head arrow.The hypomere of closed moulding band 30 passes cleaning device 44.This cleaning device can be the groove that is full of cleaning fluid, also can be cleaning agent is sprayed onto spraying mechanism on the moulding band.Or similar device.Like this, in case 30 motions of moulding band just can make the moulding band pass the cleaning operation that wiper mechanism 44 is realized the moulding band.
The aforementioned movement of closed moulding band 30 can be taked almost any required forms of motion along the direction that is parallel to its vertical extension D substantially.But preferably take on above-mentioned direction continuously, vibration or step motion form.
In order to realize the specific embodiment among Fig. 5, but moulding band 30 is preferably made by elasticity or elastic bending material.For the moulding band of other form, usually select bronze material for use, because bronze material more can realize matching with the reasonable material of leading edge 4 and trailing edge 8 (being formed from steel usually).But, also can use other combination of materials.
Fig. 6 is the schematic diagram that is similar to Fig. 2 of the 4th embodiment of expression moulding band of the present invention.This moulding band 30 has L type cross section, is being furnished with the cover plate 46 that reaches above trailing edge 8 expression on the surface facing to spraying roller 26.The surface that deviates from the moulding band 30 of trailing edge 8 is the discharging face 48 of unnecessary liquid or resisting medium 12.
Fig. 7 is the schematic diagram that is similar to Fig. 2 of the 5th embodiment of expression moulding band of the present invention, in the present embodiment, has used the moulding band 30 (as the moulding adjustable plate) with circle substantially or elliptic cross-section, and this moulding band is fixed on the flexible retainer 50.Can be by using corresponding suitable flexibility or elastomeric material, the flexibility of retainer 50 is realized in the part of perhaps adopting retainer 50 than thin material cross section 52.Like this, under the effect of power, the retainer that has a moulding band 30 can produce strain and compress the moulding band towards the direction of leading edge 4.In the present embodiment, active force is to be produced by the hold-down mechanism 40 that has described in detail among Fig. 2.But hold-down mechanism 40 is not to act directly on the moulding band 30 here, but act on by retainer 50 indirectly.
Fig. 8 is the schematic diagram that is similar to Fig. 2 of the 6th embodiment of expression moulding band of the present invention, and moulding band 30 has sector crosssection.
In principle, the moulding band also can have and is different from aforesaid other moulding cross section, as other polygon or curved cross section.
Fig. 9 is the schematic cross-section of second embodiment of expression operative installations 2 of the present invention.At this moment, the retainer 54 of moulding band 30 is tapered towards the direction of spraying roller 26, and retainer 54 is directly placed and is fixed on the distributing pipe 18 of operative installations (distributing pipe 18 is as supporter).At this moment, the bottom shape of retainer 54 matches with the shape of distributing pipe 18.The wall thickness of distributing pipe 18 diminishes from the bottom to top gradually, and distributing pipe 18 is packed on the general support component 17.
Pinch tube 66 is configured between the wall 64 and retainer 54 of distributing pipe 18 equally.The effect of these pinch tube 66 is similar to aforesaid hold-down mechanism 40, under such as effective pressure action of medium such as compressed air, these pinch tube 66 produce distortion also makes double one of two phases of retainer 54 produce strain, thereby the moulding band that is configured between two and half ones of retainer 54 is pressed on the corresponding edge 4 according to the mode that is similar to previous embodiment.Usually, pinch tube 66 can not expand into identical degree.Its reason is: pinch tube of configuration under a load effect, perhaps under the different loads effect, dispose two pinch tube 66, this is because of the leading edge that has spill steering surface 10 4 owing to the different strains of retainer two and half ones and configuration in one of two and half ones, thereby also can change liquid or the angle of attack of resisting medium 12 on spraying roller 26 or plate of material.
In the embodiment according to Fig. 9, moulding band 30 has square-section substantially.Side at the moulding band is furnished with sealing gasket 76.
Figure 10 is the schematic cross-section of expression according to the 3rd embodiment of spray equipment 2 of the present invention.The 26S Proteasome Structure and Function of this spray equipment substantially with Fig. 9 in embodiment consistent.But different with it is: have only a pinch tube 66, moulding band 30 is surrounded by two sealing gaskets 76.
In being similar to the schematic diagram of Fig. 2, Figure 11 a has represented the 7th embodiment of moulding band of the present invention.With embodiment illustrated in fig. 8 the same, in moulding band 30 according to Figure 11 a, with corresponding leading edge 4 sectional areas that match, that comprise the moulding band 30 that runs through gap 32 is accurate, and (compare with the schematic cross-section of Figure 11 c-e with the floor map of Figure 11 b according to the floor map of Figure 11 b, Figure 11 c-e has rotated 90 °), run through gap 32 and have zigzag fashion.Compare with Fig. 8, a spigot surface 78 is also arranged in Figure 11 a, this spigot surface 78 is straight, smooth guide plate, and guide plate partly protrudes into the dosage gap, and is extended to outside the outlet in dosage gap (not shown among Figure 11 a) on the direction of effect roller 26.By according to the different cross section figure of Figure 11 c-e as seen, running through gap 32 also is to constitute like this, and promptly its opening section (promptly towards the Way out that runs through gap 32) on the flow direction of liquid or resisting medium 12 reduces.In the present embodiment, opening section to reduce be continually varying.
In the 8th embodiment of the moulding band of the present invention shown in Figure 12 a and Figure 12 b, two moulding bands 30.4 and 30.6 are arranged, in configuration (shown in the sectional view Figure 12 a that is similar to Fig. 2) relatively in the dosage gap.In the present embodiment, a straight spigot surface 80 is also arranged, these spigot surface 80 parts protrude into the dosage gap and are configured between two relative moulding bands 30.4 and 30.6, like this, along two side flow of spigot surface 80 and the utmost point that is imported into the spraying roller nearby by the liquid of gap 32 discharging running through of moulding band 30.4 and 30.6 or resisting medium 12.But this spigot surface 80 not necessarily.The floor map of Figure 12 b shows: two moulding bands 30.4 and 30.6 have a semi-circular channel separately, setover mutually in two moulding bands 30.4 and 30.6 the above-mentioned gap 32 of running through.Shown in the double-head arrow among Figure 12 a, in two relative moulding bands 30.4 and 30.6 at least one in principle can be along moving perpendicular to the direction of the flow surface of liquid or resisting medium in feeding passage or the dosage gap substantially, like this, the total cross section that runs through the passage that gap 32 constitutes by two moulding bands 30.4 and 30.6 is transformable.
Figure 13 a and Figure 13 b have represented that the present invention runs through floor map and the schematic cross-section of the another embodiment in gap.By Figure 13 a as seen, run through gap 32 by constituting (on vertical extension direction in dosage gap as seen) in abutting connection with the zone line between a plurality of plates 82 of configuration one by one in the dosage gap.The cross section that is positioned at each plate 82 on liquid or the resisting medium flow direction is to constitute like this, promptly help flowing (in this example, plate has the lenticular cross section), and the zone that two adjacent panels are 82 is more preferably greater than the cross section of flow direction upper plate 82.Plate 82 can be configured on the moulding band of reasonable formation or be used as in the dosage gap simple separator and select the position fixing.
Figure 14 a and Figure 14 b have represented that the present invention in the spray equipment runs through floor map and the schematic cross-section of the another embodiment in gap.In the present embodiment, run through gap 32 and be made of the separator 84 that is fixed in the dosage gap, perhaps more accurately, separator 84 is fixed on the wall 42 facing to the leading edge 4 in dosage gap.At this moment, separator 84 is the pin shape parts that have cup head 84.2, and therefore cup head 84.2 has determined to run through the width in gap 32 between leading edge 4 and trailing edge 8.According to Figure 14 b, pin shape separator 84 biasing mutually (on the liquid in the dosage gap or the flow direction of resisting medium as seen).
The present invention that Figure 15 is made of the spigot surface 86 that is similar to separator for expression runs through the floor map of the another embodiment in gap.As seen from the figure, at this moment spigot surface 86 is to be produced by the metal sheet of tucking, between leading edge 4 and trailing edge 8 and nestle up edge 4,8, therefore can be used as a separator simultaneously.One end parts of spigot surface 86 protrudes into the dosage gap, and other end is extended to outside the outlet in dosage gap towards the direction facing to spraying roller 26 (not shown) in dosage gap." trough " 86.2 of spigot surface 86 and " crest " 86.4 are surrounded by the wall 4.2,8.2 of dosage gap or edge 4,8 and along extending on the flow direction that is parallel to liquid in the dosage gap or resisting medium substantially, a plurality of refinements that constituted liquid or resisting medium thus run through gap 32.Therefore spigot surface 86 has been realized two functions; On the one hand, spigot surface 86 flows out the guiding parts of dosage gap to the spraying roller as liquid or resisting medium, and on the other hand, spigot surface 86 has been realized the aforementioned function that runs through gap 32.Embodiment according to Figure 15 obviously also can use as separator fully.At this moment, the part of protruding the spigot surface 86 outside the outlet of dosage gap is non-existent, has therefore constituted separator.The cross sectional shape that separator is suitable has just determined to run through gap 32.
In Figure 16 a and Figure 16 b, represented to run through the schematic cross-section of the another embodiment in gap 32 by the present invention that separator 88 constitutes.Surrounded by two straight spigot surfaces 92,94 with the separator that the side constituted 88 that the leading edge 4 and the trailing edge 8 of semicircle that has corresponding biasing and slotted recess 90 are used, an end of these two spigot surfaces 92,94 partly protrudes into the dosage gap respectively and its other end is extended to outside the outlet in dosage gap.What the slotted recess that is surrounded in the side by spigot surface 92,94 had constituted liquid or resisting medium 12 runs through gap 32.
Figure 17 a and Figure 17 b are respectively floor map and the schematic cross-section that expression the present invention runs through another embodiment in gap, and Figure 17 a and Fig. 2 are similar.At this moment, run through gap 32 by a plurality ofly adjacently running through otch, promptly constituting by a plurality of core holes 96 with permanent straight warp.Core hole 96 is configured on the wall 98 of the operative installations that faces toward the spraying roller, at spraying roller place, has disposed the outlet with aforementioned various forms of dosages gap.Flow direction according to liquid in the core hole 96 or resisting medium 12, in the former configuration that runs through otch 96 be communicated with otch 96 and along greater than on be parallel to the distribution path 10 0 that the longitudinal extension direction in dosage gap extends, wherein the feeding path 10 2 of liquid or resisting medium 12 leads to and distributes passage.In this embodiment, distribute the side that path 10 0 and formation run through the core hole 96 of otch to seal, therefore distribute path 10 0 and core hole 96 very convenient when cleaning by movable cover plate.
Liquid or the resisting medium 12 even dosage method in spray equipment is to make liquid or resisting medium 12 to flow through by a plurality of refinements to run through the control band that gap 32 constitutes.Run through the circulation area in gap 32 by change, can regulate the quantity for spray of liquid or resisting medium 12.
Similar with Fig. 2, figure 18 illustrates the enlarged diagram of the 4th excellent embodiment of spray equipment of the present invention.Clearly visible by figure, the flow channel 106 that diminishes gradually towards liquid or resisting medium 12 flow directions directly joins with the port of export that runs through gap 32.
In the present embodiment, the entrance section of flow channel 106 is corresponding with the general export cross section of running through gap 32 substantially, and diminishes continuously towards the flow direction of liquid or resisting medium 12.The outlet of flow channel 106 is near the zone of the spill steering surface 10 of leading edge 4, like this, flows out the liquid of flow channel 106 or resisting medium 12 and is subjected to substantially along the guiding of the tangent direction of steering surface 10 and is carried out herein turning to.
By Figure 18 equally as seen, the exit region that runs through gap 32 in trailing edge 18 is furnished with local attenuation part 108, and like this, the flow section of flow channel 106 is adjustable, and promptly the entrance section of flow channel 106 and the relation between the outlet are adjustable.Attenuation part 108 connects corresponding to a hinge, and can swing within the specific limits, it is the top that the rotating part of trailing edge 8 is arranged in figure attenuation part 108, and constitute the wall 106.2 of flow channel 106, swing around the axle that passes attenuation part 108 is flexible, and extends along the y direction that is parallel to beam 20 substantially.
On trailing edge 8, also disposed the governor motion 110 that is used for regulating flow channel 106 flow sections.In principle, this mechanism can be any governor motion that satisfies instructions for use, comprises mechanism, waterpower, pneumatic, electronic, heating power, magnetic force, mangneto contracts or piezoelectricity governor motion or the like.Governor motion is done the time spent, and the wall 106.2 of flow channel 106 that is positioned at Figure 18 right side is pivotally around the axle motion of passing attenuation part 108, and towards or the direction that deviates from leading edge 4 to change the flow section of flow channel 106.Certainly, also can design flow path 10 6 and governor motion 110 usually like this, promptly regulate not by generations that rotatablely move, but by translational motion or even by the aggregate motion generation.
Similar with the expression mode of Figure 18, Figure 19 has represented the schematic cross-section of subregion of the 5th embodiment of spray equipment of the present invention.As seen from Figure 19, the wall 106.2 of the path 10 6 that flows on trailing edge 8 is made of thin, tabular or sheet component 112, below is also referred to as plate 112.Plate 112 links to each other with the adjacent area of trailing edge 8 by suitable security system and is detachable.Because plate 112 is producing strain under certain governor motion effect, facing to the plate 112 of flow channel 106 outlet sides just towards or deviating from 4 motions of corresponding leading edge, thereby can adjust again the flow section of mobile path 10 6.Except the strain of plate 112, also can be pivotally connected or be hinged together the suitable part of plate 112 and leading edge 4, to realize adjusting as required to the flow section of the path 10 6 that flows.Illustrate not shown latter event.In the present embodiment, also use a kind of governor motion according to the embodiment of Figure 19, it comprises a suitable adjusting cylinder 114, can be around the swing arm 116 of run-on point DP motion and the support arm 118 that links to each other with plate 112 with swing arm 116.
When operative installations of the present invention is worked, liquid or resisting medium 12 at first infeed via pigment distributing pipe 18, enter compensation space 16 then, run through gap 32 by what feeding passage 14 flow to moulding band 30, thus, liquid or resisting medium 12 escape and enter and the entrance side that runs through the flow channel 106 of gap 32 adjacency by the precise volumes dosage.Because running through gap 32 has wavy or sinusoidal shape, flowing liquid or resisting medium 12 just have the dynamic shape that comprises trough and crest by after running through gap 32.It is homogenized that these crests and trough flow through conical flow path 10 6 backs, and like this, liquid or resisting medium 12 leave the outlet (not shown) of flow channel 106 with the free jet form.Because the effect of the spill steering surface 10 of leading edge 4, make jet towards the directional steering tangent with spraying roller 26, perhaps more directly, towards the tangent directional steering of the plate of material of leading by roller 26.
Liquid or resisting medium act on the surface of effect roller 26 with the free jet form, and it is (not shown after flowing through outlet refinement dosage mechanism, the spraying medium is adjusted to required use amount at this), medium infeeds the roller gap, pass through the roller gap by the plate of material that cardboard or fibrous material constitute, pick up liquid or resisting medium from effect roller 26.
Figure 30 is the schematic cross-section of the subregion of the 3rd embodiment of expression spray equipment of the present invention.This embodiment is consistent with the embodiment among Figure 18 substantially, and difference is: the concave reflecting surface 10 in the exit region of flow channel 106 can be around swinging along the axle that is parallel to the extension of operative installations longitudinal extension direction substantially.For this reason, as seen from Figure 20, is furnished with local attenuation part 120 on the leading edge 4 in the exit region of flow channel 106.These part attenuation part 120 correspondences a hinge and are connected, by plastic deformation, the leading edge 4 that this part attenuation part 120 allows to be arranged in figure attenuation part top and constitutes spill steering surface 10 is moved in certain pivot scope, and this pivot motion is to carry out around the axle that passes attenuation part 120 and be parallel to the longitudinal axis of beam 20.On the contrary, leading edge 4 parts that are positioned at local attenuation part 120 belows still keep rigidity.Like this, do not changing under the situation that flow channel 106 is provided with, can be to the angle of shock change of free jet on spraying roller 26 by the liquid or the resisting medium 12 of concave reflecting surface 10 reflections.
Be also shown in by Figure 20, spill steering surface 10 1 sides facing to flow channel 106 are furnished with lever support arm 122, and thus, bending force can import spill steering surface 10 and local attenuation part 120, as a result, lever force can produce because the swing of the caused steering surface 10 of flexural deformation of attenuation part 120.For this reason, the free end of lever support arm 122 links to each other with the suitable governor motion 126 of reflecting surface by attaching parts 124, and this governor motion is such as the pneumatic or movable cylinder that surges, servomotor, setting or adjustment spiral, cam etc.
The spill steering surface 10 that is used for regulating angle of attack among Figure 20 can be continuous on the length of operative installations, perhaps can be divided into several zones, these zones can separately be regulated, promptly can rotate district by district, liquid or resisting medium can be in local changes to the angle of attack of move materials plate like this, and the effect of plate of material is also produced corresponding influence.For example, can be used for compensating the local inaccuracy of making or be used on plate of material, producing specific cross section pattern like this.By evenly driving the spill steering surface district by district, obviously also can be along the angle of attack on the whole length of operative installations integrally-regulated.
Embodiment described in Fig. 1 to Figure 20 just illustrates, and spray equipment can be done remarkable change within the scope of the present invention.For example, the various piece of moulding band can have different gap shape and/or size.
Each moulding band also can have two inhomogeneous gaps on the whole length of moulding band, these two gap configuration are in the corresponding both sides of moulding band, thereby can realize different gap dosages by removing with the rotational forming band.Opposite with above-mentioned example, a moulding band also can remain on both sides and partly protrude into each corresponding edge 4 or 8.Can also be furnished with the closed moulding section facing to a side of edge 4 or 8 moulding band 30 and perpendicular to the free clearance otch of flow planes in the feeding passage 14, thereby the gap 32 of running through of moulding band is exactly to run through otch fully.Can infer, moulding band, especially closed hoop become band further to be used for matching with the driver part that drives the moulding band, and driver part is all if any cingulum dish, V-type belt wheel or the like.
Obviously moulding band 30 can be configured in (not being to be configured on the trailing edge 8) on the leading edge 4.At this moment, relevant with above-mentioned example additional and auxiliary body also can be by similar fashion use substantially.In addition, along with the difference of type of service, the pectination moulding gap on leading edge 4 and/or the trailing edge 8 also can be used to constitute the gap of running through that flow direction that a plurality of edges are parallel to liquid in the feeding passage 14 or resisting medium 12 substantially extends with one or more moulding bands.
In addition, can also save spill steering surface 10 in principle, perhaps use convex to turn to and for it, perhaps the free end of an edge is extended to outside the free end of second edge as straight spigot surface.Can also infer equally, flow channel 106 does not attenuate continuously, and the taper changing unit of flow channel 106 neither definitely must directly link to each other with the outlet side that runs through gap 32.Except above-mentioned and be configured in the governor motion on the trailing edge 8, can also on leading edge 4, dispose similar governor motion 110.Be shown in broken lines such embodiment among Figure 18.In principle, any mechanism that satisfies instructions for use all can be used as governor motion.Among the present invention, not only can on the whole width of operative installations, do the flow section of flow channel integrally-regulated, but also can be local selectively, promptly on the whole width of operative installations, regulated district by district.Its result provides several independent controlled governor motions.Not shown such embodiment.
Reference number in claim, explanation and the accompanying drawing does not limit the scope of the invention just to being convenient to understand the present invention.
Claims (50)
1. be used for directly or indirectly liquid or resisting medium are sprayed to a kind of spray equipment on the plate of material (especially comprising paper or cardboard) of motion, comprising: as the dosage gap of free-jet nozzle, the dosage gap is positioned between leading edge (4) and the trailing edge (8); The feeding passage (14) that at least one leads to the dosage gap is characterized in that:
The dosage gap is subdivided into pectination, and the refinement with a plurality of liquid or resisting medium (12) runs through gap (32).
2. according to claim 1 spray equipment is arranged, it is characterized in that: the channel cross-section that runs through gap (32) reduces gradually towards the flow direction of liquid or resisting medium.
3. according to the spray equipment of claim 1 or claim 2, it is characterized in that: run through gap (32) and constitute by a plurality of predetermined otch (96) that run through that are disposed at the outlet of dosage gap.
4. according to the spray equipment of claim 1 to one of claim 3, it is characterized in that: according to the flow direction of liquid or resisting medium in the dosage gap, run through gap (32) former configuration with run through that gap (32) is used and parallel with vertical extension direction in dosage gap substantially distribution passage (100).
5. according to the spray equipment of claim 1 or 2, it is characterized in that: run through gap (32) and constitute by the forming partitioned device (88) that at least one is arranged in the dosage gap.
6. according to the spray equipment of claim 5, it is characterized in that: at least one separator (88) is surrounded by two spigot surfaces (92,94) that are extended to outside the outlet of dosage gap.
7. according to the spray equipment of claim 1 or 2, it is characterized in that: run through gap (32) and be configured in the dosage gap or the spigot surface on the dosage gap (86) formation by one or more.
8. according to the spray equipment of claim 1 or 2, it is characterized in that: leading edge (4) and/or trailing edge (8) are furnished with pectination moulding gap, to constitute the gap of running through that a plurality of edges are parallel to middle flowing liquid of feeding passage (14) or the extension of resisting medium (12) flow direction substantially.
9. according to the spray equipment of claim 8, it is characterized in that: the spigot surface of at least one liquid or resisting medium is configured between leading edge (4) or the trailing edge (8).
10. according to the spray equipment of claim 1 or 2, it is characterized in that: in the dosage gap, be furnished with a moulding band (30) at least, this moulding band has a plurality of refinements and runs through gap (32), and these run through gap (32) and extend along the flow direction that is parallel to middle liquid of feeding passage (14) or resisting medium (12) substantially.
11. the spray equipment according to claim 8 or 10 is characterized in that: the shape in the pectination moulding gap of leading edge (4) and/or trailing edge (8) and moulding band (30) to run through gap (32) corresponding.
12. the spray equipment according to claim 10 or 11 is characterized in that: moulding band (30) can move on the direction that is being parallel to its vertically extend (D) on the body.
13. spray equipment according to claim 10 or 11, it is characterized in that: two or more moulding bands (30,30.2) along the flow direction alternately front and back configuration mutually of middle fluid of feeding passage (14) or resisting medium (12), the moulding band can move relatively on the direction that is parallel to its vertical extension (D) substantially and change.
14. the spray equipment according to one or more claim of aforementioned claim further comprises at least one motion (42), this motion (42) can be along driving moulding band (30 on the direction that is parallel to its vertically extend (D) substantially; 30.2).
15. the spray equipment according to one or more claim of aforementioned claim is characterized in that: disposed two moulding bands (30.4 staggered relatively in the dosage gap; 30.6), each of these moulding bands runs through the otch that runs through that gap (32,32) has constituted liquid or resisting medium (12) together.
16. the spray equipment according to claim 15 is characterized in that: at least one spigot surface (80) is configured between two relative moulding bands (30.4,30.6).
17. the spray equipment according to one or more claim of aforementioned claim is characterized in that: the moulding band can and be transverse to flowing liquid in the feeding passage (14) or the flow plane of resisting medium (12) substantially towards the direction motion of leading edge (4) or trailing edge (8).
18. spray equipment according to one or more claim of aforementioned claim, further comprise at least one hold-down mechanism (40), this hold-down mechanism is towards leading edge (4) or trailing edge (8) and be approximately perpendicular to flowing liquid in the feeding passage (14) or the direction (P2) of the flow plane of resisting medium (12) compresses moulding band (30) directly or indirectly.
19. the spray equipment according to claim 18 is characterized in that: hold-down mechanism is for effectively producing the tubular part (40,66) that is out of shape under the medium effect.
20. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: moulding band (30) has polygon, circle, ellipse or fan shaped cross section substantially.
21. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: moulding band (30) is made of elastomeric material.
22. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: moulding band (30) is made of bronze material.
23. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: moulding band (30) vertically extends into a closed circuit along it.
24. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: moulding band (30) is configured on leading edge (4) and/or the trailing edge (8).
25. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: the vertical sectional shape that runs through gap (32) of moulding band (30) is substantially waveform or sinusoidal.
26. spray equipment according to one or more claim of aforementioned claim, it is characterized in that: the longitudinal section of running through gap (32) of moulding band (30) is substantially trapezoidal, and perhaps the material section (Z) around the moulding band (30) that runs through gap (32) is a profile of tooth.
27. the spray equipment according to one or more claim of aforementioned claim is characterized in that: the gap depth that runs through gap (32) (t) of moulding band (30) is 0.5mm-4mm.
28. the spray equipment according to one or more claim of aforementioned claim is characterized in that: the profile of tooth modulus of moulding band (30) that has a dentation material section (Z) at scope 0.25mm within the 3mm.
29. the spray equipment according to one or more claim of aforementioned claim is characterized in that: moulding band (30) removably or regularly be contained on the maintaining body or retainer in (38,50,54).
30. the spray equipment according to claim 29 is characterized in that: retainer (50) is flexible.
31. the spray equipment according to claim 29 or 30 is characterized in that: retainer (54) comprises the part of feeding passage (14) at least.
32. the spray equipment according to one or more claim of aforementioned claim is characterized in that: retainer (54) has to small part and protrudes into safety disc (58) in the spray equipment distributing pipe (18).
33. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: retainer (54) comprises a filter mechanism (70).
34. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: retainer (54) comprises a sonic generator (74).
35. the spray equipment according to one or more claim of aforementioned claim is characterized in that: discharging surface (48) is in a side and moulding band (30) adjacency of the moulding band (30) that deviates from edge.
36. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: feeding passage (14) diminishes continuously gradually towards moulding band (30).
37. according to the spray equipment of one or more claim of aforementioned claim, it is characterized in that: it comprises that at least one is used for cleaning the wiper mechanism of moulding band (30) (44).
38. the spray equipment according to one or more claim of aforementioned claim is characterized in that: towards liquid or resisting medium (12) flow direction flow channel (106) that diminishes gradually and the outlet side adjacency that runs through gap (32).
39. according to sharp 38 the spray equipment that requires of comb, it is characterized in that: flow channel (106) diminishes continuously or discontinuously gradually.
40. the spray equipment according to claim 38 or 39 is characterized in that: the flow section of flow channel (106) is adjustable (110).
41. the spray equipment according to claim 40 is characterized in that: the flow section of flow channel (106) can be along the whole width adjusted of spray equipment, and/or can locally select to regulate.
42. spray equipment according to claim 40 or 41, it is characterized in that: leading edge (4) and or trailing edge (8) in run through gap (32) exit region be furnished with local attenuation part (108), this part attenuation part (108) makes the flow section of flow channel (106) to regulate.
43. spray equipment according to claim 40 or 41, it is characterized in that: at least one wall (106.2) of flow channel (106) by can towards or deviate from the tabular or laminated structure part (112) of at least one of leading edge (4) or trailing edge (8) motion and constitute, this structure member provides the controllability of the flow section of flow channel (106).
44. the spray equipment according to one of in the claim 38 to 43 is characterized in that: disposed at least one governor motion (110,114,116,118), be used for regulating the flow section of flow channel (106).
45. the spray equipment according to claim 44 is characterized in that: governor motion (110,114,116,118) is configured in leading edge (4) and/or the trailing edge (8) or is configured on leading edge (4) and/or the trailing edge (8).
46. the spray equipment according to claim 44 or 45 is characterized in that: governor motion (110,114,116,118) comprises machinery, waterpower, pneumatic, electronic, heating power, magnetic force, magnetostriction or piezoelectric type governor motion.
47. spray equipment according to one or more claim of aforementioned claim, it is characterized in that: the spill steering surface (10) of liquid or resisting medium (12) and flow channel (106) adjacency, and can in the exit region of flow channel (106), swing around axle (120), axle (120) extends along the direction that is parallel to the spray equipment longitudinal extension substantially.
48. the spray equipment according to claim 47 is characterized in that: spill steering surface (10) can be around axle the exit region of flow channel (106) in the district by district swing parallel substantially with spray equipment longitudinal extension direction.
49. in spray equipment, be used for realizing the even dosage method of liquid or resisting medium, it is characterized in that: make liquid or resisting medium (12) guiding run through the control band of gap (32) by shape such as a plurality of refinement.
50. the method according to claim 49 is characterized in that: change the circulation area that runs through gap (32), thereby regulate the quantity for spray of liquid or resisting medium (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96111896 CN1153086A (en) | 1995-09-06 | 1996-09-04 | Application unit for direct or indirect application of liquid or pasty medium onto moving meterial web |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19532920.1 | 1995-09-06 | ||
| DE19549085.1 | 1995-12-29 | ||
| CN 96111896 CN1153086A (en) | 1995-09-06 | 1996-09-04 | Application unit for direct or indirect application of liquid or pasty medium onto moving meterial web |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1153086A true CN1153086A (en) | 1997-07-02 |
Family
ID=5121297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96111896 Pending CN1153086A (en) | 1995-09-06 | 1996-09-04 | Application unit for direct or indirect application of liquid or pasty medium onto moving meterial web |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153086A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314157B (en) * | 2007-05-31 | 2011-08-24 | Tdk株式会社 | Liquid applying apparatus |
-
1996
- 1996-09-04 CN CN 96111896 patent/CN1153086A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314157B (en) * | 2007-05-31 | 2011-08-24 | Tdk株式会社 | Liquid applying apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6352159B1 (en) | Dual deck dewatering screen | |
| EP1986817B1 (en) | Peening chamber for surface peening, in particular for ultrasonic shot peening of gas turbine components | |
| CN1478606A (en) | Cigarette paper and cigarette with the cigarette paper | |
| CN109562584B (en) | Apparatus for cutting a tire tread profile in a rubber molding element and cutting method using such an apparatus | |
| CN1944040A (en) | Medium and small crank slide block type full automatic dry powder press | |
| CN210732788U (en) | Material distributing machine | |
| KR100281912B1 (en) | Strand cutting method, strand cutting machine and its operation method | |
| CN1966371A (en) | Floating device and carrying device | |
| CN108994297A (en) | Powder feeder device | |
| CN212639027U (en) | Vibrating material distributor | |
| CN1153086A (en) | Application unit for direct or indirect application of liquid or pasty medium onto moving meterial web | |
| CN200970898Y (en) | Middle-small size crank slider type automatic dry powder press | |
| KR102194901B1 (en) | Reactor for incinerator with removal function of attachment | |
| US5887976A (en) | Continuous kneading machine having at least one rotating shaft and paddles and notched adjusting plates mounted on each shaft | |
| CN112845031A (en) | Hydraulic high-frequency screen | |
| CN208976833U (en) | Powder feeder device | |
| CN110271709A (en) | A kind of semi-automatic belt quantitative package machine of water purification agent polyaluminium chloride | |
| CN214975630U (en) | Novel linear vibrating screen | |
| CN209081407U (en) | A kind of accelerator adding set | |
| CN210730127U (en) | Hydraulic high-frequency vibrating screen with adjustable inclination angle | |
| CN109333971A (en) | For conveying the dual-screw-stem machine of synthetic resin | |
| KR102209884B1 (en) | Reactor for incinerator having rotary scraper | |
| CN211537462U (en) | Emulsifying machine is used in plaster preparation | |
| CN114632593A (en) | Chamber continuous grinding dispersion vibration ball mill, grinding system and grinding method | |
| US6883669B2 (en) | Multi-element airfoil for pulp screens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |