CN101133208A - Press belt and shoe press roll - Google Patents
Press belt and shoe press roll Download PDFInfo
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- CN101133208A CN101133208A CNA2006800065743A CN200680006574A CN101133208A CN 101133208 A CN101133208 A CN 101133208A CN A2006800065743 A CNA2006800065743 A CN A2006800065743A CN 200680006574 A CN200680006574 A CN 200680006574A CN 101133208 A CN101133208 A CN 101133208A
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Abstract
A press belt and a shoe press roll. The press belt (2) comprises both end corresponding areas (B) positioned correspondingly to lateral both end parts of the press roll (1) or a pressuring shoe (3) and a center area (A) positioned between the both end corresponding areas (B). The center area (A) comprises a pressurized part having a prescribed thickness and pressurized by a pressurizing means. The both end corresponding areas (B) are formed in recessed parts (14) with a thickness larger than the thickness of the center area (A) and form pressure releasing parts escaping a pressure from the pressurizing means.
Description
Technical field
The present invention relates to a kind ofly in various industry such as paper-making industry, magnetic force recording medium manufacturing industry, fiber industry, be used for the object of exerting pressure is carried out the press belt and the shoe press roll of pressurized treatments aspect.
Background technology
In various industry, use has following a kind of like this band application to press, promptly, the object of exerting pressure of band shape is carried on the press belt, and a pressure-producing part of the circumference interior location of press belt, and another pressure-producing part in the circumference external position of press belt between, object carries out pressurized treatments to exerting pressure.Here said pressure-producing part is pressure roll or pressurization crawler shoe etc.Example as band application is pressed can list the crawler shoe of exerting pressure as dehydration in the paper-making industry and exert pressure.
With the paper-making industry is the words that example is come simple declaration, crawler shoe is exerted pressure and is meant following a kind of method, promptly, the pressure roll as external pressurized mechanism of the circumference external position of press belt, and pressurization crawler shoe at the circumference interior location of press belt as internal pressurization mechanism between, the object of exerting pressure (l Water Paper) that carries on to the outer peripheral face at press belt through press belt imposes surface pressure, carries out pressurized treatments (processed).It is to the object of exerting pressure linear pressure in addition that the roller of being exerted pressure by two rollers is exerted pressure, and to this, it then is by using the pressurization crawler shoe that has Rack on moving direction to come the in addition surface pressure of object of exerting pressure that crawler shoe is exerted pressure.Therefore, dewater under the situation of exerting pressure exerting pressure, can strengthen the clamping width, have advantages such as the dewatering efficiency of raising by crawler shoe.
In order to make the crawler shoe densification of exerting pressure, for example Japanese kokai publication sho 61-179359 communique is disclosed like that,, form the shoe press roll of roller shape and popularized by flexible tubular press belt (pressure sleeve) institute clad as the pressurization crawler shoe of internal pressurization mechanism.
Except above-mentioned dehydration procedure, also have: for example in paper-making industry, magnetic force recording medium manufacturing industry, in the fiber industry etc., in order to make the surface smoothing of the object of exerting pressure, and pay gloss and the press polish operation of carrying out etc., in order to improve the quality of the object of exerting pressure, replace roller to exert pressure, or the dual-purpose roller exerts pressure, carry out crawler shoe and exert pressure.As the general characteristic that requires, can list intensity, ABRASION RESISTANCE, flexible and at the non-permeability of water, oil, gas etc. at press belt.As material, generally be that polyurethanes is used in the press belt, and this polyurethanes is resulting by urethane prepolymer and curing agent reaction with these characteristics.Yet, at press belt, particularly on crawler shoe is exerted pressure the belt of usefulness,, on outer peripheral face, being easy to crack owing to carry out excessive bending and pressurization repeatedly, this just becomes a very big problem aspect durability.
In order to address the above problem, in the Japanese kokai publication hei 10-298893 communique, disclosing a kind of like this crawler shoe exerts pressure with band: change in the low mode in zone, two edges with the height of the middle section on width by the hardness that makes the resin that constitutes belt, improve ABRASION RESISTANCE and anti-fragility, and zone, above-mentioned two edges comprises crawler shoe edge counterpart.This occasion then produces: can keep ABRASION RESISTANCE and anti-pressurizing and deformation and be difficult to cause the effect of crackle in the zone, two edges at middle section.
Crackle is easy to concentrate and occurs in: with corresponding corresponding region, both ends, both ends on the width of pressing mechanisms such as pressure roll or pressurization crawler shoe.Between the corresponding region, both ends and the middle section that becomes the pressurized treatments face of the object of exerting pressure do not require to have strict anti-fragility so, but pay attention to ABRASION RESISTANCE and anti-pressurizing and deformation.
Japanese kokai publication hei 10-298893 communique is then finished according to this thought, still, by the variation of hardness, take into account ABRASION RESISTANCE and anti-fragility, just must strengthen the firmness change of middle section and both sides portion to a certain extent.In case the hardness difference of polyurethanes, the convergent force during shaping are then different.Therefore, cylindricity then takes place and descends in the belt that has strengthened the firmness change in middle section and zone, two edges on width, might produce obstacle in moving.
As other prior art document, have plenty of, improved by shape and structure press belt, perhaps the degree of depth to rhone (water intaking groove) is changed, suppress the generation of crackle on the corresponding region, both ends, and corresponding region, above-mentioned both ends is meant corresponding zone, both ends on the width with pressing mechanism.For example, in the TOHKEMY 2002-180393 communique, strengthened: the intermediate layer thickness that is positioned at the press belt of corresponding position, both ends on the width with pressing mechanism.The spy opens in the 2002-327389 communique, and the enhancement Layer as the intermediate layer is then approached in the bottom that is positioned at the rhone of corresponding position, both ends on the width with pressing mechanism.In No. 5943951 communique of United States Patent (USP), change gradually, improve flexible by the both ends thickness on the width that makes press belt.In No. 6030503 communique of United States Patent (USP), the both ends on the press belt width are provided with a plurality of recesses different with groove.In the Japanese kokai publication hei 11-12975 communique, then be the degree of depth that has reduced the rhone at the both ends on the width of press belt.
In above-mentioned prior art document, be typically, by improving the flexible of corresponding region, press belt both ends, suppress the generation of crackle in this zone, and corresponding region, above-mentioned press belt both ends is positioned at the position corresponding with the both ends of pressing mechanism width.Yet,, not fairly obvious to the inhibition effect that crackle takes place even improved the flexible of the corresponding region, both ends of press belt yet.
Passing through pressing mechanism, when the objects of exerting pressure such as l Water Paper are carried out pressurized treatments, on the corresponding region, both ends of the press belt corresponding with the both ends on the pressing mechanism width, one following two-part border is arranged, to being positioned at the superolateral press belt partial action of width bending force, these two parts are meant from this boundary member: the part and the part that does not have pressurized mechanics limit of pressurization of pressurized mechanism and restriction.Therefore, even this boundary member zone nearby has flexible structure, not fairly obvious to the inhibition effect that crackle takes place yet.
Summary of the invention
The objective of the invention is to, provide a kind of and can effectively be suppressed at the press belt that crackle takes place the corresponding region, both ends, and this corresponding region, both ends is corresponding to the both ends on the width of pressure-producing parts such as pressure roll and pressurization crawler shoe.
Another object of the present invention is to, a kind of shoe press roll that above-mentioned press belt is used as urceolus is provided.
Press belt of the present invention is to have ring-type and rotate the belt that moves, it is applied in the following method, this method is, the object of exerting pressure is carried on outer peripheral face one side of above-mentioned press belt, circumference inside by being positioned at this press belt and/or circumference external position and have the pressing mechanism of Rack are carried out the method for pressurized treatments to the object of exerting pressure.Press belt includes: and the width of pressing mechanism on the corresponding region, both ends and the middle section between this corresponding region, both ends of both ends correspondence position.Middle section has the thickness of regulation, and constitutes the pressurized portion of pressurized mechanism pressurization; The corresponding region, both ends forms the recess than middle section thin thickness, and constitutes the pressure escape portion of escaping for the pressure that comes from above-mentioned pressing mechanism.
Because the corresponding region, both ends of press belt forms the recess than the thin thickness of middle section, so when the object of exerting pressure carried out pressurized treatments,, the pressure that comes from pressing mechanism is escaped in this corresponding region, both ends.Therefore,, when carrying out pressurized treatments, only acted on bending stress, and do not acted on from the next higher pressure of pressing mechanism in the corresponding region, both ends.Like this, according to the present invention of above-mentioned formation, can suppress the generation of crackle of the corresponding region, both ends of press belt effectively.
In addition, the what is called of using in this specification ' moving direction ' and ' width ' word, short of special record then is meant the moving direction and the width of the object of exerting pressure respectively.And the object of exerting pressure is strip material such as l Water Paper, tape, textiles, but does not have particular determination.In addition, pressing mechanism then is pressure roll or pressurization crawler shoe etc.
Be preferably the variable quantity of the middle section gauge of the concave depth on the corresponding region, both ends of press belt when pressurizeing by pressing mechanism.When recess has such degree of depth, when the object of exerting pressure is carried out pressurized treatments, can make the elevated pressures escape that comes from pressing mechanism reliably in the corresponding region, both ends of press belt.Concave depth for example is more than the 1.0mm.
In one embodiment, recess is formed at the outer peripheral face of this press belt.In other embodiment, recess is formed at the inner peripheral surface of this press belt.Furtherly, as other embodiment, also can on the two sides of the outer peripheral face of this press belt and inner peripheral surface, all form recess.
In one embodiment, the outside on the width of above-mentioned corresponding region, both ends includes and corresponding region, the both ends fringe region of thickness much at one.In other embodiment, the outside on the width of above-mentioned corresponding region, both ends includes and the middle section fringe region of thickness much at one.If make the fringe region of press belt have and middle section thickness much at one, then can stablize and support the both ends on the mat width, thereby the restriction mat move freely.
Press belt for example, has: enhancement Layer on middle section and corresponding region, both ends and the top elastic layer on enhancement Layer extend.In this case, the top elastic layer then has the recess as pressure escape portion.
In other embodiment, press belt has: the enhancement Layer and being positioned on the enhancement Layer and only that extends on middle section and corresponding region, both ends extends at the top of middle section elastic layer.In this case, the exposed portions serve of enhancement Layer outer peripheral face forms the recess as pressure escape portion.
At the outer peripheral face of top elastic layer, also can be formed with along the moving direction of belt and a plurality of rhones that extend.In this case, be preferably, above-mentioned concave depth is identical with the rhone bottom degree of depth or than darker.The bottom that is in the rhone in the corresponding region, press belt both ends probably becomes the generation starting point of crackle.In the present embodiment, not only make the corresponding region, both ends form recess and escape, and should not form rhone in the zone, so it is fine to suppress the effect of crackle generation for pressure.
Press belt in other the embodiment has: enhancement Layer on above-mentioned middle section and corresponding region, above-mentioned both ends and the bottom elastic layer under enhancement Layer extend.In this case, the bottom elastic layer has the recess as pressure escape portion.
Further, the press belt in other the embodiment has: the enhancement Layer and being positioned under the enhancement Layer and only that extends on above-mentioned middle section and corresponding region, above-mentioned both ends extends at the bottom of above-mentioned middle section elastic layer.In this case, the exposed portions serve of enhancement Layer inner peripheral surface forms the recess as pressure escape portion.
Shoe press roll involved in the present invention has: by the formed urceolus of circular pressure band with above-mentioned feature be positioned at the pressurization crawler shoe as pressing mechanism of the circumference interior location of above-mentioned urceolus.Be preferably, have the two ends of middle section of the press belt of specific thickness, the edges at two ends portion than the pressurization crawler shoe of being positioned on width near inboard position.
Description of drawings
Fig. 1 is the diagrammatic sketch of section on the moving direction of employed crawler shoe device for exerting in the operation of exerting pressure of expression paper machine.
Fig. 2 is the partial sectional view of section on the width of the P of pressurizing and dehydrating portion in the presentation graphs 1.
Fig. 3 is the partial sectional view of section on the width of the P of pressurizing and dehydrating portion in the presentation graphs 1, and it has used different modes as press belt.
Fig. 4 is near the generalized section of the structure the end on the width of expression pressing mechanism, (a) structure of indication device, (b)～(f) press belt of expression variety of way.
Fig. 5 (a) is its cutaway view for the diagrammatic sketch of the related press belt of expression an embodiment of the invention, (b) is plane.
Fig. 6 is the amplification view of an embodiment of the invention.
Fig. 7 is other the amplification view of embodiment of the present invention.
Fig. 8 is the amplification view of another other embodiments of the present invention.
Fig. 9 is the amplification view of another other embodiments of the present invention.
Figure 10 is the amplification view of another other embodiments of the present invention.
Figure 11 is the section diagrammatic sketch on the width of the related shoe press roll of expression an embodiment of the invention.
The specific embodiment
Below, with reference to diagram embodiments of the present invention are specifically described.
Fig. 1 is the diagrammatic sketch of section on the moving direction of employed crawler shoe device for exerting in the operation of exerting pressure of expression paper machine.The crawler shoe device for exerting possesses and has: as the pressure roll of pressing mechanism 1, with pressure roll 1 in opposite directions press belt 2 and as the pressurization crawler shoe of pressing mechanism 3; This pressing mechanism 3 is positioned at the circumference inside of press belt 2.In addition, in the device of Fig. 1, press belt 2 clads pressurizations crawler shoe 3 is assembled into the roller shape with press belt 2 as urceolus, constitutes shoe press roll 30, but also can press belt 2 be assembled into the roller shape, and still bring use with the pressure of the sort of ring-type.
The size of this press belt 2, in general, its width is 2～15m, and girth is 1～30m, and thickness is 2～10mm.
Fig. 2 is the partial sectional view of section on the width of the P of pressurizing and dehydrating portion in the presentation graphs 1.As shown in Figure 2, pressure roll 1 and pressurization crawler shoe 3 have certain length at width.Press belt 2 includes: middle section A, corresponding region, both ends B and fringe region C.Corresponding region, both ends B be with the both ends that add pressure surface 67 of pressure roll 1 and the both ends that add pressure surface 89 that comprise the crawler shoe 3 that pressurizes in corresponding zone, interior position.Fringe region C is positioned at the outside of corresponding region, both ends B.
In press belt shown in Figure 22, the thickness that its middle section A has regulation, and constitute the pressurized portion of be stressed roller 1 and 3 pressurizations of pressurization crawler shoe; Corresponding region, both ends B forms the recess of the thickness littler than the thickness of middle section A, and constitutes pressure escape portion, and this pressure escape portion is for escaping from the pressure of pressure roll 1 and pressurization crawler shoe 3; Fringe region C and middle section A have thickness much at one.
Fig. 3 has represented the press belt of other modes, for the parts of identical or appropriate section, has adopted the symbol identical with Fig. 2.In press belt shown in Figure 32, the thickness that its middle section A has regulation, and constitute the pressurized portion of be stressed roller 1 and 3 pressurizations of pressurization crawler shoe; Corresponding region, both ends B forms the recess of the thickness littler than the thickness of middle section A, and constitutes pressure escape portion, and this pressure escape portion is for escaping from the pressure of pressure roll 1 and pressurization crawler shoe 3; Fringe region C and corresponding region, both ends B have thickness much at one.
Fig. 4 (a) amplifies and to have represented to be sandwiched in state between pressure roll 1 and the pressurization crawler shoe 3 as the l Water Paper 5 of the object of exerting pressure and press belt 2.Among this Fig. 4 (a), omitted the diagram of mat 4.And, to oversimplify in order to make figure, press belt 2 has been expressed as identical thickness.What (b)～(f) of Fig. 4 represented is the different shape of the related press belt of embodiments of the present invention 2.
Shown in Fig. 4 (a), as the end of the l Water Paper 5 of the object of exerting pressure, be positioned at the end that adds pressure surface 89 than the end that adds pressure surface 67 of pressure roll 1 and pressurization crawler shoe 3 on width near inboard position.Corresponding region, the end B of press belt 2 is, with the end 7 of pressure roll 1 and the corresponding zone, position of the end 9 of pressurization crawler shoe 3.Specifically, corresponding region, end B is that to be the center with the end 7 of pressure roll 1 and the regional corresponding position of the end 9 of pressurization crawler shoe 3, the expansion that carry out to a certain degree the both sides on width is extended.L Water Paper 5 is positioned on the middle section A that is clipped by corresponding region, the both ends B of press belt 2.Near the position of the boudary portion of corresponding region, end B and the middle section A about centre between the end of the end of l Water Paper 5 and pressing mechanism (pressure roll 1 and pressurization crawler shoe 3).Fringe region C is positioned at the outside of corresponding region, end B, and the boundary portion in their two zones then is located on the width outside than the end of pressing mechanism.
L Water Paper 5 is being carried out under the state of pressurized treatments, press belt 2 by the part that adds pressure surface 8 clampings that adds pressure surface 6 and pressurization crawler shoe 3 of pressure roll 1, limited by these pressing mechanisms.On the other hand, compare with the end that adds pressure surface 89 of pressurization crawler shoe 3 with the end that adds pressure surface 67 of pressure roll 1 and be positioned at the restriction that the superolateral press belt part of width then is not subjected to these pressing mechanisms.Boundary portion 2b between the restricted part of above-mentioned press belt 2 and the unrestricted part is positioned at the place of the end 9 of the end 7 of pressure roll 1 and the crawler shoe 3 that pressurizes.During pressurization, shown in imaginary line among Fig. 4 (a), do not have the part of pressurized mechanics limit, must act on bending force.At the boundary member 2b place of press belt 2, except above-mentioned bending force,, then be easy to crack at this boundary member if also concentrate the elevated pressures that has from pressing mechanism.
Crackle generation for the boundary member 2b place that effectively suppresses above-mentioned press belt 2, corresponding region, the both ends B of the press belt 2 that embodiments of the present invention are related forms the recess than the littler thickness of thickness of middle section A, and constitute pressure escape portion, escape for the pressure that comes from pressing mechanism.
Shown in Fig. 4 (b) in the press belt 2, middle section A almost has identical thickness with fringe region C, on the outer peripheral face of corresponding region, the end B between them, forms a recess 14 that exists section layer difference and depression to go down.The depth d of this recess 14 is preferably more than the 1.0mm.Generally, the variable quantity of the press belt middle section A gauge when carrying out pressurized treatments is less than 1.0mm, and therefore, recess 14 has such degree of depth, then can make reliably from the next elevated pressures of pressing mechanism at corresponding region, both ends B and escape.In addition, recess 14 is to extend on the moving direction of press belt 2.
In the press belt 2 shown in Fig. 4 (c), corresponding region, end B forms the recess 14 little than middle section A thickness, constitutes pressure escape portion, and fringe region C and corresponding region, end B have thickness much at one.In this embodiment, the thickness of recess 14, that is, the thickness of the thickness of middle section A and corresponding region, end B poor is preferably more than the 1.0mm.In addition, recess 14 is to extend on the moving direction of press belt 2.
At Fig. 4 (b) with in the press belt 2 (c), be that a kind of end corresponding region B has the mode of the recess of planar bottom surface.On the other hand, in the press belt 2 shown in Fig. 4 (d), corresponding region, end B has section on its outer peripheral face be circular-arc recess 14, constitutes pressure escape portion, with by this recess 14, escapes for the pressure that comes from pressing mechanism.Section is that circular-arc recess 14 is to extend on the moving direction of press belt.Fringe region C has the thickness much at one with middle section A.Even in this embodiment, be preferably equally, the depth capacity that makes recess 14 is more than the 1.0mm.
In press belt 2 shown in Fig. 4 (e), on the inner peripheral surface of corresponding region, end B, form recess 14, constitute escape portion.The recess 14 that forms on the inner peripheral surface is to extend on the moving direction of press belt.In this embodiment, the section of not having layer is poor on the boundary member of the outer peripheral face of the outer peripheral face of middle section A and corresponding region, end B.Fringe region C has the thickness much at one with middle section A.Be preferably, recess 14 degree of depth of the inner peripheral surface of press belt 2 are more than 1.0mm.
In press belt 2 shown in Fig. 4 (f), on the inner peripheral surface of corresponding region, end B, form recess 14, constitute escape portion, fringe region C has the thickness much at one with corresponding region, end B.In this embodiment, also the section of not having layer is poor on the outer peripheral face of press belt 2.Be preferably, recess 14 degree of depth of the inner peripheral surface of press belt 2 are more than 1.0mm.
What Fig. 5 represented is an example of press belt 2, (a) is its cutaway view, (b) is plane.Press belt 2 be by: in the reinforcement matrix material of ring-type, contain elastomeric material enhancement Layer 10, be arranged in the outer peripheral face side of enhancement Layer 10 and the top elastic layer 11 of being integral of elastomeric material that contained with reinforcement matrix material and be arranged in the inner peripheral surface side of enhancement Layer 10 and the bottom elastic layer 12 of being integral of elastomeric material that contained with reinforcement matrix material at enhancement Layer 10 constitutes at enhancement Layer 10.
As the reinforcement matrix material that constitutes enhancement Layer 10, use be with weaving cotton cloth of organic fibers such as polyamide, polyester formation etc.Belt 2 all integrally formed by Thermocurable polyurethane elastomeric material, and form and in belt 2, be embedded with the structure of strengthening matrix material.
As shown in Figure 5, on the outer peripheral face of top elastic layer 11, have along the moving direction of belt and a plurality of rhones 13 that extend.Rhone 13 extends into spiral helicine on the integral width direction of press belt 2.
Fig. 6 is the amplification view of press belt.In press belt 2, be positioned at the thickness of corresponding region, the both ends B of the both ends correspondence position on the width with pressing mechanism, less than the thickness of middle section A and fringe region C.Specifically, top elastic layer 11 is formed with recess 14, and this recess 14 is: corresponding region, both ends B extends along the moving direction ring-type of belt and forms.Therefore, the thickness of corresponding region, both ends B is little than other zones.
In the embodiment shown in Figure 6, as d1, the bottom surface degree of depth of recess 14 is as d2, so that the mode that d2 〉=d1 relation is set up is selected the degree of depth of rhone 13 and the degree of depth of recess 14 with the degree of depth of the bottom of rhone 13.By setting such size relationship, can on middle section A and fringe region C, be formed with rhone 13, then be the state that is not formed with rhone on the B of corresponding region, both ends.
At this, exemplify concrete size.As described above, press belt 2, generally speaking, its width dimensions is 2～15m, and girth is 1～30m, and thickness is 2～10mm.In such press belt 2, the width dimensions of corresponding region, both ends B is 2～15cm, and the thickness of top elastic layer 11 is 1.2～8mm, and the dark d1 in the bottom of rhone 13 is 0.5～7mm, and the dark d2 in the bottom surface of recess 14 is 1.0～7mm.In addition, the groove width of rhone 13 is 0.6～1.2mm, and the width of the piston ring land portion between adjacent drainage channel groove 13 is 0.9～3.6mm.
According to embodiment shown in Figure 6, following advantage is arranged.At first, first by reducing the thickness of corresponding region, both ends B, can improve this regional flexible, also can constitute pressure escape portion simultaneously, escapes for the pressure that comes from pressing mechanism.Therefore, even effect has twisting stress and bending stress on this zone, the big pressure that comes from pressing mechanism does not but have effect thereon, so suppressed the generation of crackle.
The 2nd, by forming recess 14 being positioned on the elastic layer of the locational top of B, corresponding region, both ends, and removed become easily crackle generation starting point rhone, therefore have the effect that very high inhibition crackle takes place.Be preferably, the two side walls 14a of recess 14 forms the past more more little taper surface in interval that goes down to each other.Suppose,, then probably can be formed with sharp-pointed corner angle at the cross part place of vertical walls and rhone 13 if the two side walls 14a of recess 14 is vertical wall.In order to prevent from the generation of this corner angle, be preferably to form the two side walls 14a of cone-shaped.In addition, concentrate, also bottom comer can be formed the curved surface shape for fear of the stress of the bottom comer of the bottom of recess 14.
The 3rd, the fringe region C of press belt 2 has identical thickness with middle section A, therefore can stablize and support the both ends of mat width by fringe region C, thereby limit moving freely of mat.
The 4th, on the outer peripheral face of fringe region C, be formed with along a plurality of rhones of the moving direction of belt, therefore improved from corresponding region, both ends B and led to the flexible of fringe region C, suppress the effect that crackle takes place so also just improved.
What Fig. 7, Fig. 8, Fig. 9 and Figure 10 represented is other embodiments of press belt.
In embodiment shown in Figure 9, on the outer peripheral face of press belt 60, middle section A forms protuberance on the press belt moving direction, and extends, and corresponding region, both ends B and fringe region C form recess on the press belt moving direction, and extension.Corresponding region, the both ends B that becomes recess constitutes pressure escape portion, escapes for the pressure that comes from pressing mechanism.In addition, the section layer difference between the middle section A of the outer peripheral face of press belt 60 and corresponding region, the both ends B is preferably more than the 1.0mm.If can guarantee that the section layer of this size is poor, on the B of corresponding region, both ends, also can leave the top elastic layer of the above thickness of 0.5mm.
Next, with reference to Figure 11, the embodiment of the shoe press roll 30 that the present invention relates to is described.Figure 11 represents the section diagrammatic sketch on the width of shoe press roll.Shoe press roll 30 is with the pressurization crawler shoe 3 of press belt 2 clads as pressing mechanism, and press belt 2 is assembled into the roller shape as urceolus.
As press belt 2, can use above-mentioned various embodiment.As we know from the figure, the two ends of the middle section A of press belt 2, the edges at two ends that is positioned at the crawler shoe 3 that pressurizes on width near inboard position.
More than, referenced in schematic is illustrated embodiments of the present invention, but the present invention has more than and is limited to illustrated embodiment.With same range as of the present invention or impartial scope in, can carry out various modifications and distortion at illustrated embodiment.
In the corresponding region, both ends that crackle takes place easily in the past, press belt of the present invention but is difficult to crackle takes place, so can use for a long time.Therefore, can advantageously be applied to: in various industry such as paper-making industry, magnetic force recording medium manufacturing industry, fiber industry, the press belt and the shoe press roll that use for the object of exerting pressure is carried out pressurized treatments.
Claims (15)
1. press belt that is used for device for exerting, this device for exerting has: rotate the circular pressure band that moves and be positioned at the circumference inside of above-mentioned press belt and/or the pressing mechanism of circumference external position, this press belt is characterised in that,
Include: and the width of above-mentioned pressing mechanism on the corresponding region, both ends and the middle section between corresponding region, above-mentioned both ends of both ends correspondence position;
Above-mentioned middle section has the thickness of regulation, and constitutes the pressurized portion of being pressurizeed by above-mentioned pressing mechanism;
Corresponding region, above-mentioned both ends forms the recess than above-mentioned middle section thin thickness, and constitutes the pressure escape portion of escaping for the pressure that comes from above-mentioned pressing mechanism.
2. press belt according to claim 1 is characterized in that, the variable quantity of the above-mentioned middle section gauge of above-mentioned concave depth greater than by the pressurization of above-mentioned pressing mechanism the time.
3. press belt according to claim 1 is characterized in that, above-mentioned concave depth is more than the 1.0mm.
4. press belt according to claim 1 is characterized in that above-mentioned recess is formed at the outer peripheral face of this press belt.
5. press belt according to claim 1 is characterized in that above-mentioned recess is formed at the inner peripheral surface of this press belt.
6. press belt according to claim 1 is characterized in that, the outside on the width of corresponding region, above-mentioned both ends includes and corresponding region, the above-mentioned both ends fringe region of thickness much at one.
7. press belt according to claim 1 is characterized in that, the outside on the width of corresponding region, above-mentioned both ends includes and the above-mentioned middle section fringe region of thickness much at one.
8. press belt according to claim 1 is characterized in that having: enhancement Layer on above-mentioned middle section and corresponding region, above-mentioned both ends and the top elastic layer on enhancement Layer extend; Above-mentioned top elastic layer has above-mentioned recess.
9. press belt according to claim 1 is characterized in that having: extend on above-mentioned middle section and corresponding region, above-mentioned both ends enhancement Layer and be positioned on the enhancement Layer and only extend at the top of above-mentioned middle section elastic layer; The exposed portions serve of above-mentioned enhancement Layer outer peripheral face forms above-mentioned recess.
10. press belt according to claim 8 is characterized in that, at the outer peripheral face of above-mentioned top elastic layer, is formed with along the moving direction of belt and a plurality of rhones that extend.
11. press belt according to claim 10 is characterized in that, above-mentioned concave depth is identical with the bottom degree of depth of above-mentioned rhone or than darker.
12. press belt according to claim 1 is characterized in that, has: extend enhancement Layer on above-mentioned middle section and corresponding region, above-mentioned both ends and the bottom elastic layer under enhancement Layer, above-mentioned bottom elastic layer has above-mentioned recess.
13. press belt according to claim 1 is characterized in that, has: extend on above-mentioned middle section and corresponding region, above-mentioned both ends enhancement Layer and be positioned under the enhancement Layer and only extend at the bottom of above-mentioned middle section elastic layer; The exposed portions serve of the inner peripheral surface of above-mentioned enhancement Layer forms above-mentioned recess.
14. a shoe press roll is characterized in that having: the pressurization crawler shoe as pressing mechanism of urceolus that constitutes by the circular pressure band and the circumference interior location that is positioned at above-mentioned urceolus; Above-mentioned urceolus is the described press belt of claim 1.
15. shoe press roll according to claim 14 is characterized in that, has the two ends of middle section of the above-mentioned press belt of specific thickness, the edges at two ends portion than above-mentioned pressurization crawler shoe of being positioned on width near inboard position.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP059884/2005 | 2005-03-04 | ||
| JP2005059884 | 2005-03-04 | ||
| JP062845/2005 | 2005-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101133208A true CN101133208A (en) | 2008-02-27 |
Family
ID=39129836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800065743A Pending CN101133208A (en) | 2005-03-04 | 2006-02-27 | Press belt and shoe press roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101133208A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097609A (en) * | 2010-09-02 | 2013-05-08 | 山内株式会社 | Press belt and shoe press roll, and manufacturing method for press belt |
-
2006
- 2006-02-27 CN CNA2006800065743A patent/CN101133208A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097609A (en) * | 2010-09-02 | 2013-05-08 | 山内株式会社 | Press belt and shoe press roll, and manufacturing method for press belt |
| CN103097609B (en) * | 2010-09-02 | 2015-06-03 | 山内株式会社 | Press belt and shoe press roll, and manufacturing method for press belt |
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| SE01 | Entry into force of request for substantive examination | ||
| CI01 | Correction of invention patent gazette |
Correction item: Inventor Correct: Hikida Takahisa False: Hikida Takahisa Number: 9 Volume: 24 |
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| CI02 | Correction of invention patent application |
Correction item: Inventor Correct: Hikida Takahisa False: Hikida Takahisa Number: 9 Page: The title page Volume: 24 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20080227 |