CN101808777A - Coating roll working method, coating roll, and coating apparatus - Google Patents
Coating roll working method, coating roll, and coating apparatus Download PDFInfo
- Publication number
- CN101808777A CN101808777A CN200880108484.4A CN200880108484A CN101808777A CN 101808777 A CN101808777 A CN 101808777A CN 200880108484 A CN200880108484 A CN 200880108484A CN 101808777 A CN101808777 A CN 101808777A
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- China
- Prior art keywords
- application roll
- bearing portion
- processing method
- bearings
- roller
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/02—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
Abstract
Intended is to make it possible to grind the surface of a coating roll highly precisely, even if the roll is long. Provided is a coating roll working method for grinding the surface of a roll (14) by rotating the roll (14) while the two end sides of the spindle (22) of the roll (14) being supported by a pair of bearings. At least one of the paired bearings is a bearing member (24) having a tilting function to follow only the deflection of the roll (14) in a gravitational direction.
Description
Technical field
The present invention relates to processing method, application roll and the applying device of application roll, relate in particular to the process technology of the application roll of in the applying device of the applicator surface that is formed uniformly wide cut, using.
Background technology
In the past, propose to have the scheme of variety of way as the application roll device.When described application roll device all is the film that guides more in a narrow margin, the device of coating liquid coating.
But () large tracts of landization for example, optical compensating film, antireflective film etc., thin-film width also broadens, and therefore needs the application roll device of wide cut to be accompanied by the functional film that is used in LCD etc.
But in the application roll device of wide cut, the bending shaft that is caused by the deadweight of application roll (below, be called for short " roller ") increases and since to the moment of bearing portion increase thus when rotated roller produce an axle runout.And, because along with the roller weight of rectangularization of roller increases and the load of bearing portion is increased.Consequently, the running accuracy that produces roller obviously reduces, and is coated in the coated film problem in uneven thickness on the film.
To this, for example, in patent documentation 1,, use the bearing (roller bearing) of band automatic aligning mechanism as the mechanism that makes the roller rotation.And, for the low running accuracy of the bearing of compensating band automatic aligning mechanism, use the outer ring in roller internal fixation gas bearing, with the inboard of outer ring the gas bearing bolster is set in this gas bearing.Thus, suppress to follow the torque shakiness of roller rotation.
In addition, in patent documentation 2, propose to have following bearing arrangement, promptly, roller is fixed on the radial thrust bearing inner ring, and then in the fixing radial thrust bearing outer ring of the inner peripheral surface of described bearing, and the outer peripheral face of described bearing is chimeric with the housing that forms spherical surface body.Thus, no matter roller all rotates freely at gravity direction or horizontal direction.And, because the axial play of radial thrust bearing disappears, therefore can realize high running accuracy.
In addition, in patent documentation 3, having proposed following method, that is, will be the axial region that housing that ball bearing below the 1 μ m and roller bearing constitute is embedded in roller by rotation runout precision, carry out the final grinding on roller surface when making the roller rotation.
[patent documentation 1] Japanese kokai publication hei 6-221325 communique
[patent documentation 2] TOHKEMY 2006-349100 communique
[patent documentation 3] TOHKEMY 2002-336756 communique
But the processing method of above-mentioned existing application roll is difficult to rectangular application roll surface is carried out the good final processing of precision and made high-precision application roll.
For example, shown in patent documentation 2, when the bearing that possesses the spherical housing when use carries out the grinding of application roll, can absorb the bending of the gravity direction of rectangular application roll by the spherical housing.But the free degree of backing roll is excessive, just to make rotating shaft produce runout easily with the small external force of gravity direction different directions, therefore, for example, makes that rotating shaft is easy to generate runout when the grinding because grinding knife tool is pushed the external force that is connected to the roller surface.Thus, can not carry out the good final processing of precision,, then can produce the problem of the membrane thickness unevenness of the coated film that is coated on film if this roller is used as the application roll of applying device to the roller after the grinding.
In addition, if process when carrying out aligning with above-mentioned patent documentation 1 to 3 such bearing pair roller, then the some contact increases on the structure, and the dynamic characteristic of bearing descends, and produces and vibrate.When producing this vibration, existence can't be carried out the possibility of high accuracy processing.And then, in spherical housing, be difficult to process accurately sphere as patent documentation 2, there is the possibility of the processing cost raising of bearing main body.
And, in the production process of functional film, require high running accuracy below the 1 μ m as the application roll that is used to carry out high-precision thin layer coating, require to satisfy the machining accuracy of this precision.
Summary of the invention
The present invention In view of the foregoing makes, its purpose is to provide a kind of processing method of application roll, utilize this method, even rectangular application roll, also grinding is carried out on the pair roller surface accurately, therefore when application roll being installed on the applying device use, can access high running accuracy.
In order to realize described purpose, according to first mode of the present invention, a kind of processing method of application roll is provided, when the state that is supported on pair of bearings with the both end sides with the rotating shaft of application roll makes described roller rotation, carry out the grinding on described roller surface, wherein, at least one is the parts of bearings of deflection function that possesses the bending of the gravity direction of only following described roller in the described pair of bearings.
In the processing method of the related application roll of first mode, at least one use in the bearing of both end sides of the rotating shaft of supporting application roll possesses the parts of bearings of deflection function of the bending of the gravity direction of only following roller, the roller of described application roll for carrying out the grinding on roller surface.Thus, even can absorb the bending of gravity direction for rectangular application roll, and even pair roller applies the external force beyond the gravity directions such as pressing force of grinding knife tool, the axis of rotation of roller can not change yet yet.Thus, can carry out high-precision grinding, thereby can when application roll being installed on the applying device use, obtain high running accuracy.
According to second mode of the present invention, based on the processing method of the described application roll of first mode, described parts of bearings is identical with the bearing of the described application roll of supporting in possessing the applying device of described application roll.
In the processing method of the related application roll of second mode, adopt same parts owing to will add the parts of bearings and the parts of bearings in the physical device in man-hour, therefore can not rely on the grinding of the form error of bearing.
And then, by make add man-hour parts of bearings and the parts of bearings of physical device be same structure, can prevent in physical device the axially deflection of film throughput direction.Therefore, if with this parts of bearings be used for the processing of application roll and physical device the two, then can access the raising of grinding accuracy and the high running accuracy that realizes and prevent axial film throughput direction deflection and these two kinds of effects of high running accuracy of realizing.
According to Third Way of the present invention, based on the processing method of the related application roll of first or second mode, described parts of bearings possesses: clutch shaft bearing portion, and it supports the rotating shaft of described application roll and makes its rotation freely; The second bearing portion, it supports described clutch shaft bearing portion, and allows the deflection of described clutch shaft bearing portion in the mode of the bending of the gravity direction of only following described application roll.
In the processing method of the related application roll of Third Way, in the man-hour that adds of carrying out application roll, use the parts of bearings possess the second bearing portion, this second bearing portion allows the deflection of clutch shaft bearing portion in the mode of the bending of the gravity direction of only following application roll.Thus, even to the external force beyond the application roll weight application direction, the axis of rotation of application roll can not change yet, and can realize high running accuracy.
In addition, in the processing method of the related application roll of Third Way,, be not particularly limited, for example, can preferably use hydraulic type hydrostatic bearing etc. as clutch shaft bearing portion.In addition, under the few situation of interference such as the vibration of invading, can adopt high-precision ball bearing mode or roller bearing mode etc. from the outside.And, in the little grade of weight of application roll, necessary load capacity is little and the influence of moment hour, also can adopt the gas thrust bearing mode of having utilized air pressure, the magnetic bearing mode of having utilized magnetic force etc.
According to cubic formula of the present invention, based on the processing method of the related application roll of Third Way, the described second bearing portion is a sliding bearing, possesses: sliding bearing portion inner ring, it is arranged on the periphery of described clutch shaft bearing portion, supports described clutch shaft bearing portion with inner peripheral surface; Sliding bearing portion outer ring, the periphery that it is arranged on described sliding bearing portion inner ring supports the outer peripheral face of this sliding bearing inner ring and it is slided freely.
According to the 5th mode of the present invention, processing method based on the related application roll of cubic formula, described sliding bearing portion inner ring forms the partial cylindrical shape, this partial cylindrical is shaped as: opposed up and down a pair of outer peripheral face axially is circular-arc convex curved surface along described application roll, and with this axially is center and the opposed a pair of outer peripheral face in the left and right sides is the plane, the space that described sliding bearing portion outer ring has the partial cylindrical shape, this partial cylindrical is shaped as: opposed up and down a pair of inner peripheral surface is along the circular-arc concavity curved surface that axially joins for the described a pair of outer peripheral face with described sliding bearing portion inner ring of described application roll, and axially to be center and the opposed a pair of inner peripheral surface in the left and right sides with this be plane that the opposed a pair of outer peripheral face in the described left and right sides with described sliding bearing portion inner ring joins.
In the processing method of the related application roll of the 5th mode, since constitute the sliding bearing portion inner ring of the second bearing portion and sliding bearing portion outer ring, be that opposed side, the left and right sides, center is the plane axially with application roll, therefore, the second bearing portion can limit the deflection to described left and right directions.In addition, because opposed two outer peripheral faces up and down of sliding bearing portion inner ring are circular-arc convex curved surface, therefore can allow application roll to axial deflection.
Thus, can when guaranteeing the needed free degree of aligning, further cut down a contact site, therefore, can under the state of the dynamic characteristic that has improved bearing, carry out aligning than existing bearing.In addition, compare with the sliding bearing of existing spherical, therefore the precision height of Machining of Curved Surface, even sliding bearing portion inner ring and sliding bearing portion outer ring are major diameter, also can precision carry out both involutory processing well.Thereby can make aligning high precision int and cost degradation.
According to the 6th mode of the present invention, based on the processing method of each related application roll in first to the 5th mode, the rotation runout precision of described application roll is below the 1 μ m.
The processing method of the application roll that the 6th mode is related can realize high running accuracy.At this, as the assay method of running accuracy, the oscillation capacity that can exemplify the roller surface of being undertaken by the electrostatic capacity type displacement transducer is measured.That is, utilize the displacement transducer that is arranged at fixed point in the rotation of roller, obtain the displacement on roller surface with time series data.(transverse axis: time, the longitudinal axis: peak to peak value displacement) (peak to peak) is estimated as the runout precision with the waveform that obtains.
According to the 7th mode of the present invention, based on the processing method of the related application roll of the 5th or the 6th mode, the radius of curvature R of described circular-arc convex curved surface is 0.8～2 times of inner diameter d of described sliding bearing portion inner ring.
In sliding bearing portion inner ring, if the radius of curvature of circular-arc convex curved surface is too small, the necessary rigidity that then structurally is used for the supporting of application roll descends, if radius of curvature is excessive, then can't obtain sufficient aligning, and is all not preferred.According to the processing method of the related application roll of the 7th mode, be 0.8～2 times (about 40～500mm) of the inner diameter d (about 50～250mm) of sliding bearing portion inner ring by the radius of curvature that makes circular-arc convex curved surface, thereby can suppress above-mentioned defective.
According to all directions of the present invention formula, processing method based on each related application roll in the 5th～the 7th mode, in the outer peripheral face of described sliding bearing portion inner ring, the opposed interplanar width B in the described left and right sides is 1～5 with the ratio B/R of described radius of curvature R.
In the processing method of the related application roll of all directions formula, even the masterpiece beyond the gravity direction is used for sliding bearing portion inner ring, also can make the position of sliding bearing portion inner ring stable, not reduce the dynamic characteristic of sliding bearing portion inner ring and can bring into play to a high-profile disposition with respect to sliding bearing portion outer ring.That is, if B/R is than less than 1, then the dynamic characteristic of sliding bearing portion inner ring descends easily, if greater than 5, then the weight of sliding bearing portion inner ring increases and is difficult to aligning successfully.Therefore, the B/R ratio is preferably about 1～5.
According to the 9th mode of the present invention, based on Third Way～the processing method of each related application roll in the formula from all directions, described clutch shaft bearing portion is the hydraulic type hydrostatic bearing.
In the processing method of the related application roll of the 9th mode, bearing mode as the supporting application roll, owing to adopt the hydraulic type hydrostatic bearing mode of the high vibration damping of expression, high running accuracy, high load capacity capacity etc., therefore static characteristic, dynamic characteristic are all improved.In addition, in the clutch shaft bearing portion of the rectangular application roll of supporting, the outer peripheral face that can prevent the rotating shaft worried and the inner peripheral surface of clutch shaft bearing portion adhere (contact).
According to the tenth mode of the present invention, the processing method based on the related application roll of the 9th mode comprises: the operation of temperature of measuring the lubricating oil of described hydraulic type hydrostatic bearing; Described lubricating oil is controlled to be the operation of the temperature of regulation based on the result of this mensuration.
When the big application roll of supporting width or weight, need high bearing rigidity, therefore, the charge oil pressure in the hydraulic type hydrostatic bearing raises, and lubricating oil generates heat easily.Even the change in ± several ℃ scope of the temperature of this lubricating oil also influence the performance of bearing, so the control of the temperature of lubricating oil is very important.In the processing method of the related application roll of the tenth mode, owing to monitor the temperature of such lubricating oil, and lubricating oil is controlled to be the temperature of regulation, so can stably keep the performance of bearing.
According to the 11 mode of the present invention, based on the processing method of each related application roll in first mode～the tenth mode, effective face length of described application roll is below the 3000mm.
The application roll of wide cut is because its deadweight and bending shaft increases easily.In the processing method of the related application roll of the 11 mode,, therefore can make the amount of bow of application roll be regulation following (50 μ m are following) because effective face length of application roll is below the 3000mm.
According to the 12 mode of the present invention, processing method based on each related application roll in Third Way～the 11 mode, the both end sides of the rotating shaft of described application roll is by a pair of described parts of bearings supporting, and a side clutch shaft bearing portion is supported by thrust bearing in the described pair of bearings parts.
If support application roll simply by the journalled hydrostatic bearing, then the axial rotary thrust direction moves freely.Therefore, limit application roll to the Bearning mechanism that thrust direction moves, the method in the both ends of application roll supporting thrust direction is arranged as being used to.But, cause application roll when the axial thermal expansion by the heating of lubricating oil, owing to, therefore the worry that is compressed load and produces distortion is arranged not to axial play.In the processing method of the related application roll of the 12 mode of the present invention, because thrust bearing only is arranged on a side of application roll, so can suppress above-mentioned defective.
According to the 13 mode of the present invention, in order to realize described purpose, application roll by in first～the 12 mode each the processing method of described application roll be made.
According to the 13 mode, can access rotating shaft and not produce runout, the application roll of high running accuracy is shown.
According to the of the present invention the tenth cubic formula, in order to realize described purpose, a kind of applying device is provided, this applying device is the applying device of extrusion pressing type, it hangs at applicator head and volume, and to form coating liquid on the application roll in the gap between the band-like film that along continuous straight runs moves crosslinked, to be coated on the described film from the coating liquid of described applicator head ejection, wherein, described applying device possesses the related application roll of the 13 mode.
In the described applying device of the tenth cubic formula, possess the described application roll of the 13 mode, so the axis of rotation of application roll does not change on the film direction of transfer.Thereby, can between application roll that film volume is hung and applicator head, form uniform gap, coating liquid coating equably.In addition, as application roll, also comprise backing roll.
The invention effect
According to the present invention, even be rectangular application roll, also grinding is carried out on the pair roller surface accurately.In addition, when application roll being installed on the applying device use, can access high running accuracy.
Description of drawings
Fig. 1 is the stereogram that the summary of the applying device that possesses application roll involved in the present invention is described, (A) is the stereogram of the major part of applying device, (B) is the stereogram of the component parts of the parts of bearings in the applying device.
Fig. 2 is the amplification profile that the inside of the parts of bearings in the key diagram 1 constitutes.
Fig. 3 is a concept map of using the processing unit (plant) of processing method involved in the present invention.
Fig. 4 is the key diagram of explanation roller crooked state on gravity direction.
Fig. 5 is the schematic diagram of the action of explanation parts of bearings 24, (A) being the profile at gravity direction situation, parts of bearings 24 of explanation from the action of the processing unit (plant) of top view Fig. 3, (B) is in the horizontal direction profile situation, parts of bearings 24 of explanation from the action of the processing unit (plant) of top observation Fig. 3.
Label declaration
10 applying devices
10 ' processing unit (plant)
12 films
14 rollers
16 applicator heads
22 rotating shafts
24 parts of bearings
26 hydraulic type hydrostatic bearings
27 sliding bearings
28 sliding bearing portion inner rings
The outer peripheral face (Z direction) of 28a, 28b sliding bearing portion inner ring
The outer peripheral face (Y direction) of 28c, 28d sliding bearing portion inner ring
30 sliding bearing portion outer rings
The inner peripheral surface (Z direction) of 30a, 30b sliding bearing portion outer ring
The inner peripheral surface (Y direction) of 30c, 30d sliding bearing portion outer ring
36 static pressure grooves
38 atmospheric pressure release grooves
56 thermometers
58 lubricating oil temperature controlling organizations
60 thrust bearings
The specific embodiment
Below, with reference to the accompanying drawings to the bearing arrangement of application roll involved in the present invention and preferred embodiment being elaborated of applying device.
Fig. 1 is the stereogram of summary of the applying device of the explanation bearing arrangement that possesses application roll involved in the present invention.Wherein, Fig. 1 (A) part is the figure that the major part of applying device is shown, and (B) part of Fig. 1 is the figure that the component parts of parts of bearings is shown.
Applying device 10 is the devices with respect to the thin film cladding coating liquid that moves continuously.Shown in Fig. 1 (A), applying device 10 mainly comprises: volume hangs with the backing roll 14 (below, abbreviate " roller 14 " as) of film 12; Be provided with predetermined gap and the applicator head 16 of the extrusion pressing type that disposes with respect to this roller 14.Below, roller 14 axially is made as directions X, with this roller 14 axially be center and left and right directions (with respect to the direction or the film direction of transfer of axial horizontal quadrature) is made as the Y direction, above-below direction (gravity direction) is made as the Z direction, either direction includes positive side, minus side.
In the inside of the applicator head 16 of extrusion pressing type, be formed with groove 18 along the width of film 12.Groove 18 is communicated with the 20a of slit opening portion of the front end (lip) of applicator head 16 by slit 20.The 20a of slit opening portion slenderly forms along the width of film 12, its width dimensions form with the width dimensions of film 12 about equally.And, spray from the 20a of slit opening portion via slit 20 via supplying with the coating liquid of supplying with to groove 18 on road 17 by not shown coating liquid supply source.And, being formed with coating liquid crosslinked (pearl) at the front end of applicator head 16 and the gap location between the continuous film 12 that moves, coating liquid shifts to film 12.In addition, applicator head 16 is by not shown support unit supporting.
For the roller 14 that in this applying device 10, uses because for example the weight of roller 14 is the heavier weight about about 400kg, and wider width, so easily because of deadweight along the gravity direction bending.If produce this bending, then the gap distribution between applicator head 16 and the roller 14 becomes inhomogeneous.Therefore, for the gap distribution between applicator head 16 and the roller 14 is remained evenly, the front end shape of applicator head 16 need be carried out the involutory adjustment of shape with crooked roller 14.The margin of error that occurs when this adjustment is subjected to the influence of the amount of bow that roller 14 has.Specifically, about 10% of the amount of bow of roller 14 as the adjustment error in gap and manifest.
As the distribution precision of applicator head 16 with the gap of roller 14, requirement is below the 5 μ m, and therefore preferably making the amount of bow of roller 14 is below the 50 μ m, as effective face length L of roller 14, below the preferred 3000mm.
But even carry out above-mentioned adjustment, along continuous straight runs transmits because film 12 volume is hung on roller 14, thus since put on roller 14 film 12 tension change or pass to the external vibration of the direction of transfer of roller 14, the gap variation of applicator head 16 and roller 14.Thus, the film thickness distribution of the thickness of overlay or thin-film width direction is inhomogeneous.Therefore, in the bending shaft of following roller 14, need pair roller 14 stably to support (aligning) so that it does not produce a deviation (change of axis of rotation).
Therefore, in the present invention, constitute parts of bearings 24 in the mode of only not carrying out aligning on axial (directions X) at roller 14 carrying out aligning on the film direction of transfer (Y direction).Below, the parts of bearings 24 as characteristic of the present invention is described.
In parts of bearings 24, periphery at the rotating shaft 22 of roller 14 disposes supporting rotating shaft 22 and makes its rotation hydraulic type hydrostatic bearing 26 (clutch shaft bearing portion) freely, and then disposes supporting hydraulic type hydrostatic bearing 26 and carry out the sliding bearing 27 (the second bearing portion) of the aligning of roller 14 in the periphery of hydraulic type hydrostatic bearing 26.
Sliding bearing 27 is made of sliding bearing portion inner ring 28 and sliding bearing portion outer ring 30.
Shown in (B) part of Fig. 1, sliding bearing portion inner ring 28 forms the partial cylindrical shape, this partial cylindrical is shaped as: last opposed two outer peripheral face 28a, 28b are circular-arc convex curved surface along directions X in the Z direction (above-below direction) of sliding bearing portion inner ring 28, and are the plane at Y direction (axially to be the left and right directions at center) last opposed two outer peripheral face 28c, 28d.
Periphery at sliding bearing portion inner ring 28 disposes the sliding bearing portion outer ring 30 of supporting sliding bearing portion inner ring 28, and forms in the mode of taking in sliding bearing portion inner ring 28.Promptly, last opposed two inner peripheral surface 30a, 30b of 30 Z direction (above-below direction) are circular-arc concavity curved surface along directions X in the outer ring, and are plane (with reference to following Fig. 4) at Y direction (axially to be the left and right directions at center) last opposed two inner peripheral surface 30c, 30d.Thus, sliding bearing portion inner ring 28 is deflection on directions X only, and deflection on the Y direction not.Thereby the hydraulic type hydrostatic bearing 26 that can allow supporting rotating shaft 22 is deflection on directions X only, and deflection on the Y direction not.
For outer peripheral face 28a, the 28b of sliding bearing portion inner ring 28, if radius of curvature R is too small, the necessary rigidity that then structurally is used for the supporting of roller 14 descends, if radius of curvature R is excessive, and then aligning decline.Therefore, 0.8～2 times (about 40～500mm) of the inner diameter d (about 50～250mm) of the preferred sliding bearing of the radius of curvature R portion inner ring 28 of outer peripheral face 28a, the 28b of sliding bearing portion inner ring 28.
In the outer peripheral face of sliding bearing portion inner ring 28, if the ratio of the width B between Y direction (axially to be the left and right directions at center) last opposed two outer peripheral face 28c, 28d and radius of curvature R (below, be referred to as " B/R ratio ") less than 1, then the dynamic characteristic of sliding bearing portion inner ring 28 descends easily, if greater than 5, then the weight of sliding bearing portion inner ring 28 increases, successfully aligning.Therefore, the B/R ratio is preferably 1～5.
Fig. 2 is the amplification profile that the internal structure of the parts of bearings 24 with bearing arrangement involved in the present invention is described.In addition, this illustrates the parts of bearings 24 that is provided with thrust bearing one side.
As shown in Figure 2, be fixed with supporting rotating shaft 22 and make the periphery parts 32 of its rotation hydraulic type hydrostatic bearing 26 freely at the inner peripheral surface of sliding bearing portion inner ring 28, these periphery parts 32 move with sliding bearing portion inner ring 28 with becoming one.In addition, be circumferentially with oil supply tank 34 on the inner peripheral surface edge of sliding bearing portion inner ring 28, this oil supply tank 34 is used for supplying lubricating oil.
Between the internal face of hydraulic type hydrostatic bearing 26 and rotating shaft 22 along circumferentially and axially be formed with static pressure groove 36 and atmospheric pressure release groove 38, described static pressure groove 36 and atmospheric pressure release groove 38 are communicated with via axle bush parts 40, these axle bush parts 40 and the outer peripheral face of rotating shaft 22 between be formed with lubricating oil can be by the fine channel of degree.38 sealed parts 42 sealings of atmospheric pressure release groove.In addition, be formed with oil-feed port 44 on the surface with oil supply tank 34 opposed periphery parts 32, this oil-feed port 44 is communicated with by the oil supplying hole 46 that forms fine stream shape with static pressure groove 36.Static pressure groove 38,38 is communicated with the outage 48 that bottom at gravity direction forms vertically, and outage 48 is communicated with oil drain out 50.
Thus, lubricating oil is supplied with to static pressure groove 36, axle bush parts 40 (circumferential fine channel) and atmospheric pressure release groove 38 by oil-feed port 44 and oil supplying hole 46 from being formed on the oil supply tank 34 that makes progress in week.And the lubricating oil of circulation is discharged to the outside via oil drain out 50 after outage 48 compiles in static pressure groove 36, atmospheric pressure release groove 38.
The lubricating oil supply source 52 of storage, supplying lubricating oil is communicated with oil supply tank 34, oil drain out 50 respectively by pipeline 54a, 54b, forms the circulation road 54 of lubricating oil.The circulation road 54 of lubricating oil be provided with thermometer 56 and lubricating oil temperature controlling organization 58 midway, this thermometer 56 is used to measure the temperature of lubricating oil.Can monitor the situation of the temperature of lubricating oil all the time by thermometer 56.And lubricating oil temperature controlling organization 58 uses the temperature control equipment of air coolings, water-cooled, cooling agent mode etc., and the temperature of lubricating oil is controlled to be set point of temperature.Thus, according to the temperature measurement result of the lubricating oil of thermometer 56, lubricating oil temperature controlling organization 58 is controlled to be set point of temperature with the temperature of lubricating oil.
In the inside of hydraulic type hydrostatic bearing 26, near the atmospheric pressure release groove 38 of the opposition side of roller 14, be provided with the thrust bearing 60 that is flange shape.This thrust bearing 60 rotates freely with roller 14 under the state that is fixed in roller 14, and fixed part 62 between the peripheral side face be formed with the fine stream of the degree that oil can be lubricated, fixing between this fixed part 62 and the periphery parts 32 by screw 64.And, thereby the lubricating oil that flows out from atmospheric pressure release groove 38 is lubricated restrict rollers 14 to moving axially by above-mentioned fine stream.Roller 14 lateral roots at hydraulic type hydrostatic bearing 26 are provided with drag seal 66 according to needs.
In addition, above-mentioned thrust bearing 60 preferably only is arranged on either party in the pair of bearings parts 24.That is, when the lubricating oil adstante febre, roller 14 produces to axial thermal expansion, and roller is rectangularization more, and its swell increment is big more.If support along thrust direction at the both ends of roller 14, then disappear to axial play, therefore have to be compressed load and the worry of distortion.Therefore, thrust bearing 60 is set, suppresses above-mentioned defective by the either party in the pair of bearings parts 24 that pair roller 14 supports only.
Below, with reference to Fig. 3 to Fig. 5 the step of processing method of the present invention is described.Fig. 3 is a concept map of using the processing unit (plant) 10 ' of processing method of the present invention.In the figure, the rotating shaft 22 of the roller 14 that is ground as supporting also makes its rotation bearing freely, uses the parts of bearings 24 identical with the parts of bearings that illustrates in above-mentioned applying device.Fig. 4 is the schematic diagram of expression roller 14 crooked state on gravity direction, and Fig. 5 is the schematic diagram of the action of explanation parts of bearings 24.Wherein, (A) of Fig. 5 is the figure of the action from top view Fig. 3, is the profile at gravity direction of parts of bearings 24.In addition, (B) of Fig. 5 is the figure that observes the action Fig. 3 from the top, is the profile in the horizontal direction of parts of bearings 24.
At first, as shown in Figure 3, the rotating shaft 22 at roller 14 both ends is installed on parts of bearings 24,, utilizes grinding knife tool 68 pair rollers 14 to carry out grinding by these parts of bearings 24 backing rolls 14 and when making its rotation freely.At this moment, grinding is carried out on the surface of pair roller 14, and the rotation runout precision that makes roller 14 is below the 1 μ m.Rotation runout precision is meant the value of the peak to peak value of the time series waveform that the displacement measurement result by the roller surface obtains, and for example, can measure with the electrostatic capacity type displacement transducer.
As shown in Figure 4, when the beginning grinding is handled, roller 14 because of deadweight to the gravity direction bending.At this moment, in parts of bearings 24, shown in Fig. 5 (A), sliding bearing portion inner ring 28 is followed bending deflection (reference arrow) on directions X of roller 14.
In addition, when observing the state of this moment from the top, shown in Fig. 5 (B), in parts of bearings 24, on the Y direction, the outer peripheral face 28c of sliding bearing portion inner ring 28 and the inner peripheral surface 30c of outer ring 30, the outer peripheral face 28d that reaches sliding bearing portion inner ring 28 and the inner peripheral surface 30d of sliding bearing portion outer ring 30 join with the plane mutually.Therefore, sliding bearing portion inner ring 28 is deflection on the Y direction not, and fixes with being stabilized.
That is, crooked even roller 14 produces, sliding bearing portion inner ring 28 is followed only deflection on directions X of this bending, not deflection on the Y direction.Therefore, the axis of rotation 14A (dotted line) of roller 14 is change not, can and make its rotation freely with high running accuracy backing roll 14.Thereby, even roller 14 bendings or beyond the gravity direction pair roller apply external force, also can be with the state of the axis of rotation deflection of having got rid of application roll, the surface of pair roller 14 finally processes.
As mentioned above, according to present embodiment, serving as that grinding is carried out on the pair roller surface under the rotation state freely in the mode of the bending of the gravity direction of only following roller 14 with rotating shaft 22 supportings of roller 14, therefore, even pair roller gives other power such as pressing force of grinding knife tool, the axis of rotation of roller can not change yet.Therefore, even be rectangular application roll, also grinding is carried out on the pair roller surface accurately.In addition, when application roll being installed on the applying device use, can access high running accuracy.And, owing to will add the parts of bearings employing same parts of the parts of bearings and the physical device in man-hour, so can not rely on the grinding of the form error of bearing.
In addition, compare with the sliding bearing of existing spherical, the surface machining accuracy height of the sliding bearing of partial circle cylindricality of the present invention, therefore, even sliding bearing portion inner ring and sliding bearing portion outer ring are big footpath, also can precision carry out both involutory processing goodly.Thereby, can make the aligning high precision int, and can realize cost degradation.
In addition, as the film 12 that uses among the present invention, can use known various film.Usually, comprise PETG, poly-2,6 naphthalene diacid glycol esters, cellulose diacetate, Triafol T, cellulose acetate-propionate, polyvinyl chloride, polyvinylidene chloride, Merlon, polyimides, known various plastic sheetings such as polyamide, paper, coating or laminated polyethylene on paper, polypropylene, the carbon number of ethylene-butene copolymer etc. is the various stacked paper of α-TPO of 2～10, aluminium, copper, the metal formings of tin etc. etc. form the film or the stacked various composites of above-mentioned material of preparatory machined layer on the surface of banding substrate.
More than, the preferred implementation of the processing method of roller involved in the present invention has been described, but the present invention is not limited to above-mentioned embodiment, and can adopts various schemes.
For example, in the respective embodiments described above, as the clutch shaft bearing portion of supporting rotating shaft 22, though adopted the hydraulic type hydrostatic bearing 26 that has reliability at aspects such as high vibration damping, high running accuracy, high load capacity capacity, but be not limited thereto, and can use various bearings.In addition, in interference such as the vibrations of invading after a little while, also can adopt high-precision ball bearing mode or roller bearing mode etc. from the outside.And the influence of, moment little in the little grade of weight of roller, required load capacity hour also can be adopted the gas thrust bearing mode of utilizing air pressure, the magnetic bearing mode of utilizing magnetic force etc.
In the respective embodiments described above, the parts of bearings 24 that will have bearing arrangement involved in the present invention is disposed at the two ends of roller 14, but is not limited thereto, and also can only be configured in a side.In this case, also can access effect same as described above.
In addition, in the present embodiment, in the applying device to the applicator head of using extrusion pressing type, the processing method that volume hangs with the backing roll of film is illustrated, but be not limited thereto, for example, can be used as the coating liquid that will be swept by roller uses to the processing method of the coating rod of the excellent applying device of film transfer.
Embodiment
To support the directly state at the both ends of the rotating shaft 22 of the test usefulness application roll of 100mm of effective face length 1500mm, roller with bearing, carry out the grinding on roller surface.Application roll is made by following flow process.
At first, with respect to the hollow shell of required material (chrome-molybdenum steel, aluminium etc., can suitably adjust), size, process external diameter, internal diameter with Tool in Cutting according to use.The cylinder part that is equal to by inside diameter at the both ends of this shell hot charging external diameter and shell, and rotating shaft 22 is installed, thus form the profile of roller.
Secondly, utilize the external diameter (at this moment, the axle of roller is parallel with the axle of emery wheel) of wheel grinding working roll, the Ni-Cr plating that implement about 30 μ m on the pair roller surface is handled.And, remove shake (れ that shakes gets り) as required, the refacing by carrying out vertical grinding (in this vertical grinding, the axle of emery wheel and the axle approximate vertical of rod).
Then, finally to be embedded in the state of parts of bearings by following condition, the pair roller surface is implemented the polishing grinding and is improved precision.
Bearing support pattern during as attrition process, only with a side of rotating shaft 22 by the situation of parts of bearings 24 supportings of the present invention as embodiment 1, with the both ends of rotating shaft 22 by the situation of parts of bearings 24 supportings of the present invention as embodiment 2, to not use parts of bearings 24 of the present invention, with the situation as a comparative example 1 of existing bearing parts (sliding bearing) supporting.
Machining accuracy is undertaken by the rotation runout precision of measuring the roller after the grinding, estimates by following benchmark.
Zero ... rotation runout precision is that machining accuracy is very good below the 1 μ m
△ ... rotation runout precision surpasses 1 μ m and is that machining accuracy is good below the 3 μ m
* .. rotation runout precision surpasses 3 μ m, and machining accuracy is bad
This result is as shown in table 1.
[table 1]
| Machining accuracy | |
| Embodiment 1 | ??○ |
| Embodiment 2 | ??○ |
| Comparative example 1 | ??× |
As shown in Table 1, the either party has used among the embodiment 1,2 of parts of bearings 24 of the present invention in the rotating shaft 22 of roller, all can access high machining accuracy (rotation runout precision).Relative therewith, do not use parts of bearings 24 of the present invention, and in the comparative example 1 with the existing bearing parts carry, the machining accuracy on roller surface is compared with embodiment 1,2 as can be known, differs the rank of a few μ m.
According to above result as can be known, use parts of bearings 24 of the present invention, can improve machining accuracy by in the pair of bearings of the both end sides of backing roll at least one.
Claims (14)
1. when the processing method of an application roll, the state that is supported on pair of bearings with the both end sides with the rotating shaft of application roll make described roller rotation, carry out the grinding on described roller surface, wherein,
In the described pair of bearings at least one is the parts of bearings of deflection function that possesses the bending of the gravity direction of only following described roller.
2. the processing method of application roll according to claim 1, wherein,
Described parts of bearings is identical with the bearing of the described application roll of supporting in possessing the applying device of described application roll.
3. the processing method of application roll according to claim 1 and 2, wherein,
Described parts of bearings possesses:
Clutch shaft bearing portion, it supports the rotating shaft of described application roll and makes its rotation freely;
The second bearing portion, it supports described clutch shaft bearing portion, and allows the deflection of described clutch shaft bearing portion in the mode of the bending of the gravity direction of only following described application roll.
4. the processing method of application roll according to claim 3, wherein,
The described second bearing portion is a sliding bearing, and it possesses:
Sliding bearing portion inner ring, it is arranged on the periphery of described clutch shaft bearing portion, supports described clutch shaft bearing portion with inner peripheral surface;
Sliding bearing portion outer ring, the periphery that it is arranged on described sliding bearing portion inner ring supports the outer peripheral face of this inner ring and it is slided freely.
5. the processing method of application roll according to claim 4, wherein,
Described sliding bearing portion inner ring forms the partial cylindrical shape, and this partial cylindrical is shaped as: opposed up and down a pair of outer peripheral face axially is circular-arc convex curved surface along described application roll, and axially is center and the opposed a pair of outer peripheral face in the left and right sides is the plane with this,
The space that described sliding bearing portion outer ring has the partial cylindrical shape, this partial cylindrical is shaped as: opposed up and down a pair of inner peripheral surface is along the circular-arc concavity curved surface that axially joins for the described a pair of outer peripheral face with described sliding bearing portion inner ring of described application roll, and axially is that the opposed a pair of inner peripheral surface in the left and right sides, center is the plane that the opposed a pair of outer peripheral face in the described left and right sides with described sliding bearing portion inner ring joins with this.
6. according to the processing method of each described application roll in the claim 1～5, wherein,
The rotation runout precision of described application roll is below the 1 μ m.
7. according to the processing method of claim 5 or 6 described application roll, wherein,
The radius of curvature R of described circular-arc convex curved surface is 0.8～2 times of inner diameter d of described sliding bearing portion inner ring.
8. according to the processing method of each described application roll in the claim 5～7, wherein,
In the outer peripheral face of described sliding bearing portion inner ring, the opposed interplanar width B in the described left and right sides is 1～5 with the ratio B/R of described radius of curvature R.
9. according to the processing method of each described application roll in the claim 3～8, wherein,
Described clutch shaft bearing portion is the hydraulic type hydrostatic bearing.
10. the processing method of application roll according to claim 9 wherein, comprising:
Measure the operation of temperature of the lubricating oil of described hydraulic type hydrostatic bearing;
Described lubricating oil is controlled to be the operation of the temperature of regulation based on the result of this mensuration.
11. according to the processing method of each described application roll in the claim 1～10, wherein,
Effective face length of described application roll is below the 3000mm.
12. according to the processing method of each described application roll in the claim 3～11, wherein,
The both end sides of the rotating shaft of described application roll is by a pair of described parts of bearings supporting, and the clutch shaft bearing portion of the side in the described pair of bearings parts is supported by thrust bearing.
13. an application roll, its processing method by each described application roll in the claim 1～12 is made.
14. applying device, this applying device is the applying device of extrusion pressing type, its applicator head and volume hang on the application roll and the gap location between the band-like film that along continuous straight runs moves to form coating liquid crosslinked, will be coated on the described film from the coating liquid of described applicator head ejection, wherein
Described applying device possesses the described application roll of claim 13.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-256755 | 2007-09-28 | ||
| JP2007256755A JP2009085354A (en) | 2007-09-28 | 2007-09-28 | Coating roll working method, coating roll and coating apparatus |
| PCT/JP2008/067156 WO2009041417A1 (en) | 2007-09-28 | 2008-09-24 | Coating roll working method, coating roll, and coating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101808777A true CN101808777A (en) | 2010-08-18 |
Family
ID=40511301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880108484.4A Pending CN101808777A (en) | 2007-09-28 | 2008-09-24 | Coating roll working method, coating roll, and coating apparatus |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2009085354A (en) |
| KR (1) | KR20100083128A (en) |
| CN (1) | CN101808777A (en) |
| WO (1) | WO2009041417A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312194A (en) * | 2014-07-31 | 2016-02-10 | Lg化学株式会社 | Coating apparatus |
| CN108044424A (en) * | 2017-12-04 | 2018-05-18 | 山东玻纤集团股份有限公司 | A kind of oiling rolls transform device from processing |
| CN114786872A (en) * | 2019-12-12 | 2022-07-22 | 日本制铁株式会社 | Device for removing foreign matter on roll surface, method for removing foreign matter on roll surface, and method for manufacturing steel strip |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5222877B2 (en) * | 2010-03-24 | 2013-06-26 | 京セラドキュメントソリューションズ株式会社 | Shaft member holding mechanism, photosensitive drum unit, and image forming apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4319579C2 (en) * | 1993-06-14 | 1996-12-19 | Kleinewefers Gmbh | Bearing for a heated roller |
| JP2002087656A (en) * | 2000-09-07 | 2002-03-27 | Toray Ind Inc | Nip roller, device for manufacturing sheet rolled body and conveying device of sheet |
| FI20002487A0 (en) * | 2000-11-14 | 2000-11-14 | Valmet Corp | Outer slide bearing for a roll to a paper / cardboard or finishing machine |
| JP2003334481A (en) * | 2002-05-17 | 2003-11-25 | Toshiba Mach Co Ltd | Coating roll device and method for manufacturing coating film or the like using this |
| JP2007144362A (en) * | 2005-11-30 | 2007-06-14 | Toppan Printing Co Ltd | Method for manufacturing die head |
-
2007
- 2007-09-28 JP JP2007256755A patent/JP2009085354A/en not_active Withdrawn
-
2008
- 2008-09-24 KR KR1020107006214A patent/KR20100083128A/en not_active Application Discontinuation
- 2008-09-24 CN CN200880108484.4A patent/CN101808777A/en active Pending
- 2008-09-24 WO PCT/JP2008/067156 patent/WO2009041417A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312194A (en) * | 2014-07-31 | 2016-02-10 | Lg化学株式会社 | Coating apparatus |
| CN108044424A (en) * | 2017-12-04 | 2018-05-18 | 山东玻纤集团股份有限公司 | A kind of oiling rolls transform device from processing |
| CN114786872A (en) * | 2019-12-12 | 2022-07-22 | 日本制铁株式会社 | Device for removing foreign matter on roll surface, method for removing foreign matter on roll surface, and method for manufacturing steel strip |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100083128A (en) | 2010-07-21 |
| JP2009085354A (en) | 2009-04-23 |
| WO2009041417A1 (en) | 2009-04-02 |
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Open date: 20100818 |