CN1328912A - Device and method for manufacturing rubber roller - Google Patents
Device and method for manufacturing rubber roller Download PDFInfo
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- CN1328912A CN1328912A CN01121120A CN01121120A CN1328912A CN 1328912 A CN1328912 A CN 1328912A CN 01121120 A CN01121120 A CN 01121120A CN 01121120 A CN01121120 A CN 01121120A CN 1328912 A CN1328912 A CN 1328912A
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Abstract
This rubber roller is manufactured by extrusion-molding a rubber material composed mainly of a thermoplastic elastomer in the form of a tube using an extrusion molding machine and cutting the tube. In this case, the extrusion molding machine to be used has a diehead machined so that the value of the ratio L/D, that is, the ratio of the length L in the longer direction of a cylindrical space 20 formed by a mandrel 12 and a die 13, to the inside diameter D of an extrusion orifice of the die 13, is 2 or more and the value of the surface roughness Ra of the surface of the mandrel 12 and the inner face of the die 13 is 6 mu m or less in the diehead part of the machine.
Description
The present invention relates to the manufacturing installation of the rubber roll that uses with roller as the paper feeding of OA (office automation) equipment, be specifically related to a kind of paper etc. that is suitable for to require abrasion performance and transport thing and picked up the also apparatus and method of the manufacturing of separatory rubber roll.
Paper feeding is used for the paper feeding mechanism of various OA equipment such as laser printer, Xerox, common paper picture unit, ATM with rubber roll.Paper feeding with rubber roll because of being that tablets such as paper film are sent, so require coefficient of friction height with tablet.Usually adopt elastomeric materials such as EPDM, natural rubber, polyurethane rubber, neoprene to make to paper roller.
In the occasion of this rubber roll being carried out extrusion molding, be by in the shaping head of extrusion moulding machine, in the tubular space that the former by the axle of inboard and the outside constitutes, rubber raw materials is squeezed into tubulose, then, after adding sulphur and sclerosis, cool off and grinding, then be cut to predetermined length, and insert the axle core and make rubber roll at hollow bulb.Specifically comprise following operation:
In first operation, in not adding the above-mentioned elastomeric material of sulphur, add sulphur agent or filler, various additive, add sulphur assistant etc., and in mixers such as kneading compactor or internal mixture, cylinder, stir.
In second operation, above-mentioned rubber raw materials is dropped into the rubber extruder, and be squeezed into tubulose.
In the 3rd operation, plug is inserted the simplified of tubulose, and add sulphur by heating such as pressure vessels.
In the 4th operation, cool off and grinding skin and outside dimension is cooperated after cooling.
In the 5th operation, be cut to predetermined length and become product.
But above-mentioned manufacturing process is because process number is many, and is also many with the part of manual task, is difficult to realize full-automatic.In addition, because raw material adopts elastomeric material, need at the extruding after vulcanization, the dimensional accuracy of roller is difficult to guarantee.And owing to make for rubber raw materials, the surface is coarse state during extruding, so the surfacing stroke is essential, in addition, also exists cost than problems such as height.
For this reason, proposed for Japanese patent laid-open 9-156784 number a kind of dimensional accuracy height, to adopt what be easy to automation be the resin material of main component with the thermoplastic elastomer, make the method for rubber roll by extrusion molding.
But the thermoplastic elastomer material that has superperformance as rubber roll mostly is high viscosity greatly, as adopts this full-bodied raw material, and then extrusion molding becomes very difficult, and has the coarse problem of roller surface after being shaped.Especially must adopt full-bodied material at the paper feeding that requires great friction coefficient with the occasion of rubber roll.This full-bodied material is for example in case be that the olefin-based thermoplastic elastomer of 744Pa*sec (shear rate 100/ second) carries out extrusion molding to common melting viscosity, when extruding raw material, because the frictional resistance for axle and former in the shaping head of extrusion moulding machine becomes big, its surface of the rubber roll after the shaping easily becomes the burr shape.Therefore, the rubber roll that adopts above-mentioned full-bodied thermoplastic elastomer to make surface smoothing in general tube extruding press becomes very difficult.
In view of this, the objective of the invention is to adopt full-bodied thermoplastic elastomer, make the rubber roll of surface smoothing by extrusion molding.
For achieving the above object, the invention provides a kind of manufacturing installation of rubber roll, this device is by in the shaping head of extrusion moulding machine, the raw material that will be main component in the tubular space that the former by the axle of inboard and the outside constitutes with the thermoplastic elastomer is squeezed into tubulose, after extruding, be cut to predetermined length, and insert the axle core and make rubber roll at hollow bulb, it is characterized in that
The value of the ratio L/D of the length L of the line part of the length direction in the tubular space that is formed by above-mentioned axle and former and the inside diameter D of above-mentioned former is more than 2,
And the value of the surface roughness Ra of above-mentioned axle outside and above-mentioned former inner face is below 6 microns.
As the value that makes above-mentioned ratio L/D is more than 2, is occasion less than 2 in the value of L/D then, and raw material becomes in the internal pressure of the raw material that pushes and promptly is extruded before full and uniform, and cracked in rubber roll inside or be out of shape.
In addition, if the value of the surface roughness Ra of axle outside and former inner face is made as below 6 microns, and when the value that makes Ra makes below 6 microns, then the surface do not have basically concavo-convex, so surperficial one-tenth smooth state.Therefore, the resistance during the raw material extruding reduces, and raw material is easy to extruding, even the such high viscosity feedstock of thermoplastic elastomer also can be carried out extrusion molding.For the above reasons, if the value of surface roughness Ra be 6 microns with next best, and this value is preferably as far as possible little.In addition, the value in surface roughness Ra surpasses under 6 microns the situation crush resistance increase, rubber roll surface generation burr.
In addition, the value of the length L of the line part in above-mentioned tubular space is preferably more than 60 millimeters.The L value less than 60 millimeters situation under, raw material becomes in the internal pressure of the raw material that pushes and promptly is extruded before full and uniform, and has cracked in rubber roll inside or be out of shape.
Adopt manufacturing installation of the present invention, the raw material that can constitute with full-bodied thermoplastic elastomer obtains surface smoothing, rubber roll that coefficient of friction is high by pressing method.In addition be that the raw material of main component forms owing to adopt with the thermoplastic elastomer, just no longer need to adopt in the past under the elastomeric material occasion essential pass through in pressure vessel, to heat add sulphur operation and subsequent refrigerating work procedure.And, because the surface smoothing of the rubber roll that is formed no longer needs grinding process, so can reduce process number.And, compare with the situation of passing through to be hardened in the past, because shape stipulates that dimensional accuracy guarantees easily in the extrusion process, so can make high-precision rubber roll at the extrusion process after vulcanization.
In addition, also can the annular knurl channel-shaped portion that be provided with a plurality of small grooves along axis direction be set at the latter end of carrying at least of the inner peripheral surface of above-mentioned former.Because this annular knurl channel-shaped portion is set, can form the knurling that constitutes by groove on the surface that is extruded pipe along axis direction.
Owing at the desired area of rubber roll the annular knurl groove is set, can suppress to enter groove is caused roller surface by paper scrap only reduction of friction card because of the paper scrap that sticks to roller surface etc. by above-mentioned annular knurl channel-shaped portion.
The tubular space that is formed by above-mentioned axle and former is preferably cylindric.Forming property is become well, and can make the roller of different shape by the shape that changes the axle core.In addition, though be cylindric with the pipe of extrusion moulding machine extruding, as to make an axle core that inserts its hollow bulb be cross section D shape, can make the special-shaped rubber roll of D shape.In addition, above-mentioned extrusion moulding machine is spiral, and is preferably single shaft or 2 extruder.Can further improve forming property like this.
In addition, the invention provides a kind of manufacture method of rubber roll, this method system adopts the extrusion moulding machine with shaping head that the former by the axle of inboard and the outside constitutes, it comprises: adopting the value of ratio L/D of the inside diameter D of the length L of line part of the length direction with the tubular space that is formed by above-mentioned axle and former and above-mentioned former is more than 2, and the value of the surface roughness Ra of above-mentioned axle outside and above-mentioned former inner face is the extrusion moulding machine of the shaping head below 6 microns, by will being that the raw material of main component is squeezed into tubulose in the tubular space that constitutes by above-mentioned axle outside and above-mentioned former inner face with the thermoplastic elastomer, after becoming the roller shape, be cut to predetermined length, and insert the axle core and make rubber roll at hollow bulb.
Thus, be that the raw material of main component carries out extrusion molding even adopt full-bodied thermoplastic elastomer, because the resistance during the raw material extruding reduces, extruding becomes easy, and can carry out the extrusion molding of smooth finish surface, can cut down the grinding process on surface, the manufacturing process that can simplify rubber roll.And, owing to adopt the shaping head of said structure to push, can improve the dimensional accuracy of profile roll.
It is 200Pa*sec that above-mentioned thermoplastic elastomer as the extrusion molding raw material is preferably the melting viscosities il of shear rate in the time of 100/ second, and Xiao A hardness is more than 10, below 50.
Shear rate when above-mentioned shear rate is extrusion molding, and be that benchmark is measured melting viscosity with this shear rate.In the melting viscosity of thermoplastic elastomer occasion less than 200Pa*sec, because viscosity is low, produce crushing in the extruded tube, make rubber roll produce distortion.
In addition, in the hardness number of the thermoplastic elastomer occasion greater than Xiao A hardness 50, the coefficient of friction on rubber roll surface reduces, and can not demonstrate fully as the performance of paper feeding with rubber roll.When hardness less than 10 the time because the axle of extrusion moulding machine and the frictional resistance of former become big during extruding, the roller surface of shaping produces burr, and, also have the problem of the abrasion performance that is easy to wear away as roller.
As the thermoplastic elastomer of raw material, suitable having is following:
Polystyrene thermoplastic elastomers such as SBS, SIS, SEBS, SEPS
Haloflex, polyvinyl chloride thermoplastic elastomer
Olefin-based thermoplastic elastomer, polyurethane series thermoplastic elastomer, ester are that thermoplastic elastomer, acid amides are thermoplastic elastomer, ionomer, EEA, EVA and composition thereof etc.
Other are the resin raw material of main component with the thermoplastic elastomer that the particle of bridge formation rubber, vulcanized rubber is dispersed in the thermoplastic resin beyond above-mentioned thermoplastic elastomer and the thermoplastic elastomer.
For the hardness that makes rubber roll reduces, oil is cooperated in rubber.Can adopt as oil mineral oil such as paraffin series, cycloalkanes hydrocarbon system, fragrant family or by hydrocarbon be oligomer form itself be known artificial oil or processes wet goods.As artificial oil for example can be alpha-olefin low polymers, butene low polymers, ethene and alpha-olefin low polymers etc., especially with the noncrystal oligomer of ethene and alpha-olefin for well.Can adopt for example dioctyl phthalate (DOP), dibutyl phthalate (DBP), certain herbaceous plants with big flowers two dioctyl phthalates (DOS), dioctyl adipate (DOA) etc. as plasticizer.
For improving the mechanical strength of rubber roll, can cooperate filler according to necessity.As filler can be the powder of silica, carbon black, clay, talcum etc. for example.In the occasion that cooperates filler, the percentage by weight of filler in whole rubber roll is preferably in below 10%.This is because the cooperation of filler is effective to tensile strength and the anti-tearing strength of improving rubber, and cooperate the flexibility of rubber is reduced greatly.
In addition, except that above-mentioned compounding ingredient, also can cooperate antiaging agent, wax etc. in the rubber roll according to necessity.Imidazoles such as 2-sulfenyl benzimidazole are for example arranged, PA, N, N-two-β-naphthalene-p-p-phenylenediamine (PPD), N-phenyl-N '-dimethyl-amines such as p-p-phenylenediamine (PPD) as antiaging agent.
The hardness of the rubber roll of manufacturing is preferably the scope of 20-40 for the A type hardness tester instrumentation hardness regularly with Japanese Industrial Standards (JIS) 6301 is 15-45.Get this scope, even rubber roll is pressed on the paper with less crimping pressure, rubber roll fully is out of shape and and paper between obtain big contact area.
In addition, rubber roll is being configured as under the state of tubular, and its wall thickness is the 1-8 millimeter, is preferably the 1.5-5 millimeter.This is that thickness is too small owing to must take into account the hardness of rubber roll, though then the rubber roll distortion also be difficult to and paper between form big contact area.On the other hand, wall thickness is excessive, and then for making roller distortion must increase crimping pressure to rubber roll, thereby the mechanism that the rubber roll crimping is used maximizes.
The accompanying drawing simple declaration:
Fig. 1 is the stereogram with the rubber roll of the manufacturing installation manufacturing of rubber roll of the present invention.
Fig. 2 is used for above-mentioned rubber roll for expression the ideograph of the state of printer.
Fig. 3 is the whole skeleton diagram of the manufacturing installation of rubber roll of the present invention.
Fig. 4 (A) is the front elevation of the axle of the head that is used to be shaped.
Fig. 4 (B) is the profile of former.
Fig. 4 (C) is the profile with axle and former chimerism.
Fig. 5 (A) and Fig. 5 (B) are the profile of expression the 2nd embodiment.
Following with reference to description of drawings example of the present invention.
Fig. 1 represents the special-shaped rubber roll 1 of the D shape used with the paper feeding of the manufacturing installation manufacturing of rubber roll of the present invention.This rubber roll 1 is that employing is that the resin raw material extrusion molding of main component is circular with the thermoplastic elastomer, and empty therein portion is pressed into the axle core 2 of D font or adopts bonding agent that both are adhesively fixed.
Fig. 2 for expression with above-mentioned paper feeding with rubber roll 1 be used for ink-jet printer to the ideograph of paper roller, release liner 3 is arranged to and rubber roll 1 relative shape.In case axle core 2 is along direction of arrow rotation, rubber roll 1 promptly makes thereupon rotating and is positioned at that uppermost paper 4 is involved in and with the gap of liner 3 paper 4 is supplied with printer by rubber roll 1.In the occasion that paper 4 is cut, rubber roll 1 carries out fricting movement on liner 3.Therefore, when requiring abrasion performance, also require the coefficient of friction height for rubber roll 1.
Fig. 3 represents the 1st example of the manufacturing installation of above-mentioned rubber roll 1.
Extrusion moulding machine 10 is spiral, has shaping head 14 at the front end of single shaft or 2 extruder 11.Drop into raw materials by hopper 18, and in 15 pairs of raw materials heating of heater of the urceolus peripheral part by being configured in above-mentioned spiral extruder 11, stir, and raw material supplying shaping head 14 that will be through stirring and squeeze out pipe 19.
Shown in Fig. 4 (A)-Fig. 4 (C), above-mentioned shaping head 14 constitutes former 13 is embedded in outward on the axle 12 with requisite space.Shown in Fig. 4 (A), the axle 12 that constitutes above-mentioned shaping head 14 with the continuous side of extruder (X) enlarged-diameter be coniform, with this wide diameter portion 12a continuously and have a line part 12b.In addition, be embedded in former 13 on the axle 12 outward with requisite space and have the cylindric of shown in Fig. 4 (B) outward appearance, and with axle 12 equally with the continuous side of extruder (X) enlarged-diameter be step-like, with this wide diameter portion 13a continuously and have a line part 13b.
The length L in the tubular space 20 shown in Fig. 4 (C) that the line part 12b of above-mentioned axle 12 and the line part 13b of former 13 form is L 〉=60 millimeter, and the inside diameter D of former 13 is set at the relation of L/D 〉=2.In addition, in this example, L is 120 millimeters, and D is 30 millimeters, L/D=4.
In addition, be surfacing around the inner peripheral surface 13c of the former 13 in above-mentioned tubular space 20 and the outer peripheral face 12c of axle 12, its surface roughness Ra is 0.5 micron below 0.6 micron.
In addition, in this example, axle 12 and former 13 are made by SUS304.
With the extrusion moulding machine 10 shaping rubber rolls with shaping head 14 of being made up of above-mentioned axle 12 and former 13 at first is to be main component and whole raw materials input hoppers 18 of being made up of other various additives that add that have color in batches with the thermoplastic elastomer, one side heating one side stirs in extruder 11, and is expressed to shaping head 14 places.In shaping head 14, by being squeezed to given size and making its surface smoothingization in the tubular space 20 between axle 12 and former 13.To cut into Len req by the cylindric drip molding that shaping head 14 squeezes out, and make the rubber roll of D font by the axle core that embeds the D font.
Fig. 5 (A)-Fig. 5 (B) represents the 2nd example, the former 13 that constitutes shaping head 14 ' in, on the inner peripheral surface of its line part 13b ', be concaved with small groove 13d ', and be provided with annular knurl channel-shaped portion 13e ' along axis direction.In addition, though be provided with above-mentioned groove 13d ' at the inner peripheral surface of former 13 ', comprise this groove inner peripheral surface, same around the inner peripheral surface and the 1st example of the former 13 ' in tubular space 20, its surface roughness Ra is below 0.6 micron.
In case above-mentioned annular knurl channel-shaped portion 13e ' is set on the inner peripheral surface of former 13 ', can on the outer peripheral face of the roller that extrusion molding goes out, forms the annular knurl groove of forming by the small groove of axis direction.
Below the embodiment 1-6 and the comparative example 1-3 of rubber roll made in explanation on the device of above-mentioned example.Embodiment 1-6 and comparative example 1-3 are as shown in table 1, the former of the shaping head of the kind of change shaping raw material and use level, extrusion moulding machine and the size condition of axle.
In addition, the former of embodiment and comparative example is the shape of the 1st example, and side face is not provided with the annular knurl groove within it.
(embodiment 1)
As rubber raw materials, adopting what make that EPDM rubber disperses in the mixture of PP (polypropylene) and polystyrene thermoplastic elastomer is the raw material of main component with the thermoplastic elastomer, and adopts following match ratio.
PP/ polystyrene thermoplastic elastomer/EPDM=ratio 20/70/100
PP (Japanese Port リ ケ system corporate system, ノ バ テ Star Network PP BC 6)
Polystyrene thermoplastic elastomer (Network ラ レ (strain) system, セ プ ト Application 4055)
EPDM (Sumitomo Chemical (strain) system, エ ス プ レ Application 670F)
Shore hardness Hs=35
Apparent melting viscosity (200 ℃) η=744Pa*sec (shear rate 100/ second)
Paraffin oil (bright dipping is emerging to produce, グ イ ア Na プ ロ セ ス オ イ Le Pw-380)
Adopt above-mentioned material to make rubber roll.
To with above-mentioned thermoplastic elastomer 2 extruders (HTM-38 (ア イ ペ Star Network (strain) system)) of the extrusion moulding machine of the raw material input of main component forming head that the 1st embodiment is housed, one side is heated to 160-200 ℃ of one side and stirs, raw material is squeezed into tubulose by the shaping head, thereby obtains the pipe shape roller of 30 millimeters of external diameters, 25 millimeters of internal diameters.Be cut into 15 millimeters of length, and embed the rubber roll of the axle core of D font therein with making D font.
(embodiment 2)
Raw material is cooperation similarly to Example 1, in the forming head part of extrusion moulding machine, and the length L in tubular space=180 millimeter, the inside diameter D of former extrusion mouth=30 millimeter, L/D=6.Axle surface and the grinding of former inner face, its surface roughness Ra=0.5.
(embodiment 3)
Raw material is cooperation similarly to Example 1, in the forming head part of extrusion moulding machine, and the length L in tubular space=60 millimeter, the inside diameter D of former extrusion mouth=30 millimeter, L/D=2.Axle surface and the grinding of former inner face, its surface roughness Ra=0.5.
(embodiment 4)
Raw material is cooperation similarly to Example 1, in the forming head part of extrusion moulding machine, and the length L in tubular space=60 millimeter, the inside diameter D of former extrusion mouth=30 millimeter, L/D=6.Axle surface and the grinding of former inner face, its surface roughness Ra=6.
(embodiment 5)
Raw material is for adopting polystyrene thermoplastic elastomer SEPS resin (セ プ ト Application CJ-001 Network ラ レ (strain) system).
Shore hardness Hs=45
Apparent melting viscosity (200 ℃) η=217Pa*sec (shear rate 100/ second)
In the forming head part of extrusion moulding machine, the length L in tubular space=120 millimeter, the inside diameter D of former extrusion mouth=30 millimeter, L/D=4.Axle surface and the grinding of former inner face, its surface roughness Ra=0.5.
(embodiment 6)
Raw material is the elastomeric material of main component with the thermoplastic elastomer for adopting what make that EPDM rubber disperses in the mixture of PP (polypropylene) and polystyrene thermoplastic elastomer, and adopts following match ratio.
PP/ polystyrene thermoplastic elastomer/EPDM=ratio 20/70/100
PP (Japanese Port リ ケ system corporate system, ノ バ テ Star Network PP BC6)
Polystyrene thermoplastic elastomer (Network ラ レ (strain) system, セ プ ト Application 4055)
EPDM (Sumitomo Chemical (strain) system, エ ス プ レ Application 670F)
Shore hardness Hs=55
Apparent melting viscosity (200 ℃) η=865Pa*sec (shear rate 100/ second)
Paraffin oil (bright dipping is emerging to produce, グ イ ア Na プ ロ セ ス オ イ Le Pw-380)
In addition, reduce the quantity of paraffin oil, and adjust Shore hardness Hs.
In the forming head part of extrusion moulding machine, the length L in tubular space=120 millimeter, the inside diameter D of former extrusion mouth=30 millimeter, L/D=4.Axle surface and the grinding of former inner face, its surface roughness Ra=0.5.
(comparative example 1)
Raw material is cooperation similarly to Example 1, in the forming head part of extrusion moulding machine, and the length L in tubular space=120 millimeter, the inside diameter D of former extrusion mouth=30 millimeter, L/D=4.Axle surface and former inner face are line cutting discharge processing, its surface roughness Ra=10.
(comparative example 2)
Raw material is cooperation similarly to Example 1, in the forming head part of extrusion moulding machine, and the length L in tubular space=30 millimeter, the inside diameter D of former extrusion mouth=30 millimeter, L/D=1.Axle surface and the grinding of former inner face, its surface roughness Ra=0.5.
(comparative example 3)
Raw material is for adopting polystyrene thermoplastic elastomer SEPS resin (セ プ ト Application SC-669 Network ラ レ (strain) system).
Shore hardness Hs=20
Apparent melting viscosity (200 ℃) η=100Pa*sec (shear rate 100/ second)
In the forming head part of extrusion moulding machine, the length L in tubular space=120 millimeter, the inside diameter D of former extrusion mouth=30 millimeter, L/D=4.Axle surface and former inner face are line cutting discharge processing, its surface roughness Ra=10.
In the rubber roll of embodiment 1-6 and comparative example 1-3 making, at first observe to confirm to have or not burr by visual surface to 500 millimeters of rubber rolls.Then with stereomicroscope the surface of 100 millimeters of rubber rolls being observed and confirmed to have or not burr, is OK with no burr person.And observed result is illustrated in the above-mentioned table 1.
As shown in table 1, in the rubber roll of embodiment 1-6, the surface does not produce burr, can confirm to obtain the rubber roll of excellent surface state.In addition, in the rubber roll of comparative example 1,2, the surface produces burr, rough surface.The rubber roll of comparative example 3 is because viscosity is low, and extruded tube produces crushing and distortion.
As mentioned above, as adopt manufacturing installation of the present invention that rubber roll is formed, because making the extruding of the shaping head of extrusion moulding machine is more than 2 with the value of the ratio L/D of the inside diameter D of the length L in space and former, and, making the surface roughness Ra of axle surface and former inner face is below 6 microns, even employing is that the raw material of main component carries out extrusion molding with full-bodied thermoplastic elastomer.Because the resistance during extruding raw material reduces, extruding becomes easily, can carry out the extrusion molding of surface smoothing.
Thus, the surface that can suppress the rubber roll of shaping produces burr, and the surface smoothing of rubber roll can obtain the high rubber roll of coefficient of friction, consequently can reduce the surfacing operation of in the past thinking essential, the manufacturing process that can simplify rubber roll.
And, owing to push by the space between former and the axle at the shaping head place of raw material extrusion molding, so can improve the dimensional accuracy of profile roll.That is, because making with elastomeric material and add the sulphur operation in the pressure vessel essential under the occasion in the past not, so dimensional accuracy raising, colory rubber roll can be provided.
Table 1
| Extrded material | The length L of the line part in tubular space (mm) | The inside diameter D of mould (mm) | ?L/D | Surface roughness Ra (μ m) | Burr | |
| Embodiment 1 | The PP/ polystyrene heat apparent melting viscosity of plastic elastomer/EPDM (200 ℃) η=744Pasec | ?120 | ?30 | ?4 | ?0.5 | Do not have |
| Comparative example 1 | The same | ?12 | ?30 | ?4 | ?10 | |
| Embodiment | ||||||
| 2 | The same | ?180 | ?30 | ?6 | ?0.5 | Do not have |
| Embodiment 3 | The same | ?60 | ?30 | ?2 | ?0.5 | Do not have |
| Comparative example 2 | The same | ?30 | ?30 | ?1 | ?0.5 | |
| Embodiment | ||||||
| 4 | The same | ?60 | ?30 | ?2 | ?6 | Do not have |
| Embodiment 5 | Apparent viscosity (200 ℃) η=217Pasec that dissolves of polystyrene thermoplastic elastomer SEPS resin | ?120 | ?30 | ?4 | ?0.5 | Do not have |
| Embodiment 6 | Apparent viscosity (200 ℃) η=217Pasec that dissolves of PP/ polystyrene thermoplastic elastomer EPDM | ?120 | ?30 | ?4 | ?0.5 | Do not have |
| Comparative example 3 | Apparent viscosity (200 ℃) η=100Pasec that dissolves of polystyrene thermoplastic elastomer SEPS resin | ?120 | ?30 | ?4 | ?10 | Produce crushing in the pipe |
Claims (8)
1. the manufacturing installation of a rubber roll, this device is by in the shaping head of extrusion moulding machine, the raw material that will be main component in the tubular space that the former by the axle of inboard and the outside constitutes with the thermoplastic elastomer is squeezed into tubulose, after extruding, cut into predetermined length, and insert the axle core and make rubber roll at hollow bulb, it is characterized in that
The value of the ratio L/D of the length L of the line part of the length direction in the tubular space that is formed by described axle and former and the inside diameter D of described former is more than 2,
And the value of the surface roughness Ra of described axle outside and described former inner face is below 6 microns.
2. the manufacturing installation of rubber roll as claimed in claim 1 is characterized in that, the value of the length L of the line part in described tubular space is more than 60 millimeters.
3. the manufacturing installation of rubber roll as claimed in claim 1 is characterized in that, the latter end of carrying at least of the inner peripheral surface of described former is provided with the annular knurl channel-shaped portion that a plurality of small grooves are set along axis direction.
4. the manufacturing installation of rubber roll as claimed in claim 1 is characterized in that, the tubular space that is formed by described axle and former is cylindric.
5. the manufacturing installation of rubber roll as claimed in claim 1 is characterized in that, described extrusion moulding machine is spiral, and is single shaft or 2 extruder.
6. the manufacture method of a rubber roll, this method system adopts the extrusion moulding machine with shaping head that the former by the axle of inboard and the outside constitutes, and it is characterized in that described method comprises:
The value of ratio L/D that employing has an inside diameter D of the length L of line part of length direction in the tubular space that is formed by described axle and former and described former is more than 2 and the value of the surface roughness Ra of described axle outside and described former inner face is the extrusion moulding machine of the shaping head below 6 microns, by will being that the raw material of main component is squeezed into tubulose in the tubular space that constitutes by described axle outside and described former inner face with the thermoplastic elastomer, after becoming the roller shape, cut into predetermined length, and insert the axle core and make rubber roll at hollow bulb.
7. the manufacture method of rubber roll as claimed in claim 6 is characterized in that, the axle core that makes the hollow bulb that inserts described roller makes cross section D shape and makes the special-shaped rubber roll of D shape.
8. the manufacture method of rubber roll as claimed in claim 6 is characterized in that, described thermoplastic elastomer is that the melting viscosities il of shear rate in the time of 100/ second is 200Pa*sec, and Xiao A hardness is more than 10, below 50.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP172526/2000 | 2000-06-08 | ||
| JP2000172526A JP4125853B2 (en) | 2000-06-08 | 2000-06-08 | Manufacturing method of rubber roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1328912A true CN1328912A (en) | 2002-01-02 |
| CN1201919C CN1201919C (en) | 2005-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011211202A Expired - Fee Related CN1201919C (en) | 2000-06-08 | 2001-06-08 | Device and method for manufacturing rubber roller |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4125853B2 (en) |
| CN (1) | CN1201919C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212747A (en) * | 2013-04-12 | 2013-07-24 | 韵升控股集团有限公司 | Material-removing ring of stainless steel strip-dividing equipment |
-
2000
- 2000-06-08 JP JP2000172526A patent/JP4125853B2/en not_active Expired - Fee Related
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2001
- 2001-06-08 CN CNB011211202A patent/CN1201919C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1201919C (en) | 2005-05-18 |
| JP4125853B2 (en) | 2008-07-30 |
| JP2001347557A (en) | 2001-12-18 |
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