CN85103233A - Urethane covered paper machine roll - Google Patents
Urethane covered paper machine roll Download PDFInfo
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- CN85103233A CN85103233A CN85103233.8A CN85103233A CN85103233A CN 85103233 A CN85103233 A CN 85103233A CN 85103233 A CN85103233 A CN 85103233A CN 85103233 A CN85103233 A CN 85103233A
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- roll
- overcoat
- coating
- paper machine
- elastomer
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Abstract
The roll that a kind of polyurethane covers applies spraying with a kind of resin formula liquid of rapid condensation, can produce the mutual small pore that completely cuts off, and constitutes a kind of institutional framework of stone shape.Spray stream is repeatedly sprayed on the roll of rotation in succession, to reach desired thickness.Resin very quick setting and be cured after, cover layer is just processed to reach desired diameter and surface smoothness.
Description
The present invention relates to versatile topped the roll of elastomeric material in paper machine, and be particularly related to the metal roll with the polyurethane coated, it is down with mould or baking oven, coating spraying to any required thickness and hardness.This coating has the isolated mutually microstructure that pore constituted by sealing, is very suitable for the requirement of mechanism's release papers such as roll and calendering platform in the paper machine.
Up to now, produce, can only invest big equipment, many labours of change expense and time with some costlinesses with the topped paper machine roll of elastomeric material.And this roll is short service life, also will use bonding technology between overcoat and metal roll, use baking oven, fixed table and casting die etc.
In producing the topped paper machine roll technology of this elastomeric material, can necessary always so far expensive device and labour, the level that can be higher than so far again its service life to be reached is undoubtedly a kind of innovation.And the topped formula paper machine roll of this polyurethane also has the stone shape institutional framework that pore and vesicle constituted by sealing, helps peeling off of paper, and also has the resistance to crusing performance in the higher-pressure region, then an especially innovation greatly.
The topped formula metal roller of this polyurethane provided by the invention is such as roll, calendering upper support and transmit usefulness by the paper of higher-pressure region such as present a theatrical performance as the last item on a programme in paper machine.This elastic cover layer can have any required thickness and hardness, and comprises countless sealings and isolated mutually vesicle and pore, but they are also airtight.This overcoat is to constitute like this: directly spraying is a kind of by being that solvent-free two groups that the prepolymer of the end of the chain is formed do not have the propylhomoserin resin formula liquid of gathering to wait cyanate on the metal roll crown, and solidifies with a kind of polyol and a kind of catalyst and to form.This resinous principle just mixes before the spray gun of packing into, and imports in the spray gun under pressure.This combination resin is very fast to be condensed on roll, so do not need mould and baking oven etc.
In the device that a kind of folding is recommended, a steel roll, its axle journal is installed on the bearing, with selected speed rotation.A spray gun is sprayed on resin on the roll of rotation, and moves around with selected speed along the length direction of roll.The rotary speed of roll and the speed of vertically moving of spray gun cooperatively interact, and so that the coating of desired thickness to be provided, the operation of spraying is carried out again and again in succession reaching the coating of desired thickness, the coating of lower floor very quick setting to accept the spraying of another layer resin.
According to predetermined service condition, the thickness variable of coating is very big.Adoptable thickness from 2.54 millimeters (0.1 inches) to 50.8 millimeters (2 inches).For example, if requiring coating is that 1.27 millimeters (0.5 inches) are thick, it is wide that then the spray gun jet flow can be adjusted to 20 degree, the amount of vertically moving of shower nozzle can be adjusted into 5.08 millimeters of revolutions (2 inches), so each coating will have 0.127 millimeter (0.05 inch) thick, spray the thickness that 1.27 millimeters (0.5 inches) are just arranged for 10 times.Pen Tu result like this will be fully uniformly in whole thickness because the coating of following one deck fixed before, spraying has next time just applied up.Fixed or the curing fully of coating needs 2 to 7 days.After curing, coating is ground to desired diameter and surface smoothness again.
Coating has or not and counts up to totally-enclosed and mutual isolated hole or aperture, and diameter 1 is preferably between 0.019 to 0.185 millimeter, and great majority are between 0.037 to 0.074 millimeter.
The control resin formula can make the coating case hardness from A level 60 to D levels 70, and when resin formula liquid transferred to spray gun, the pressure of maintenance was about 6.895 * 10
5Newton/square metre (100 pounds/square inch).
In No. 4,267,299, the United States Patent (USP) of Ou Kesili (Oechsle), the suitable polyurethane resin prescription and the condition of mixing have been illustrated.Therefore one object of the present invention is to provide to scribble elastomeric paper machine metal roll, and its coating has seals or stone shape microstructure that isolated aperture constituted, helps peeling off of paper.
Another object of the present invention provides the topped metal roll of polyurethane that paper machine is used.
Another object of the present invention provides the metal roll that is used for the paper machine nip, is coated with the overcoat of polyurethane on it, includes the isolated aperture of countless sealings, constitutes stone shape microstructure, and is ground to desired diameter and surface smoothness.
Another object of the present invention provides the method that sprays overcoat on paper machine roll.
A further object of the invention is, the method that is provided at spraying polyurethane resin on the metal roll to be making the overcoat of required thickness, and it has and comprises countless apertures but liquid-tight microstructure.
The present invention explanation is also with various diagrammatic sketch and detailed description thereof, by the Examples set that provides an optimal mode of the present invention, every people who understands thoroughly this technology readily understands other further purposes that the present invention comprises.
Fig. 1 is the front view of the topped metal roller of elastomer involved in the present invention, and attached broken section.
Fig. 2 is along the transverse sectional view of II-II direction among Fig. 1.
Fig. 3 is the partial enlarged drawing during Fig. 2 intermediate roll is looked.
Fig. 4 is a part of local amplification view of cylinder surface, uses its stone shape structure of expression.
Fig. 5 is the schematic diagram by the topped paper machine press-roller device that roll constituted of the elastomer that the present invention relates to.
Fig. 6 is the schematic diagram that explanation forms the method for rolling of the present invention.
The plain cylindrical form steel body 11 that Fig. 1 and roll 10 shown in Figure 2 have required arbitrary diameter and length, it is applied in the higher-pressure region device of papermaking equipment.The cylindrical surface 11 of steel rider is topped a kind of elastomer 12, according to the present invention, this elastic coating sprays on roll with a kind of quick hardening resin prescription liquid and forms.As shown in Figure 1, this steel rider 11 have termination 13 and stretch out from the end the axle or axle journal 14.Coating or overcoat 12 are directly to be bonded on the roll 11, do not add the substrate of bonding usefulness.
The elastic coating that is adopted is the layer of polyurethane with good compressive property, even but still have certain elasticity after solidifying grinding.This polyurethane resin prescription is made up of a kind of cyanate prepolymer and catalyst of waiting.This prescription is not solvent-laden, only just mixes before use, and flows out from a spray gun, and spray invests roller surface and condenses rapidly thereon.The above existing explanation in No. 4,267,299, the United States Patent (USP) of Ou Kesili, it introduces a kind of situation that is applied to the roll spraying by two groups of solvent-laden invariably polyurethane resin prescriptions.
As shown in Figure 3, this polyurethane overcoat contains the countless aperture or the bubbles of isolated minor diameter mutually, its size is mentioned in prosthomere, it constitutes a kind of air-locked microstructure with stone shape tissue, overcoat 12 meets the requirements of surface smoothness and diameter 1 through grinding, present surface as shown in Figure 4, between smooth small size 17, also have some slits 16.These slits can think that also the hole wall of aperture 15 constitutes, but are not what communicate with each other between them, because if overcoat has been breathed freely.These slits and the solid small size that is mingled with therebetween these polishings cooperate together, and the performance of fabulous release papers just is provided.
As shown in Figure 5, the bottom roller that constitutes in the paper machine press-roller device of the topped formula roll 10 of the made polyurethane of the present invention.This device also has a steel top roller 19, so just forms a higher-pressure region 20.Paper machine felt 21 transmits paper roll 22 in the past by district 20.As explained above, when the paper of paper roll is adjacent to polyurethane overcoat 12, behind nip, the institutional framework of overcoat will be easy to paper is peeled off.This overcoat has enough hardness, can resist the high voltage load of nip.
As shown in Figure 6, the axle journal 14 of roll 11 is contained in the fixed bearing block 23 of a lathe or other similar devices.Its axle journal for example, can drive with a such whirligig 24 of variable-speed motor M.The cylinder of roll 11 partly along the stroke directions of spray gun 25, flatly is shelved between the bearing block 23.Spray gun is a breaker roll periphery 11a ejection jet 26.Spray gun is supplied with hydrojet by a pressurizing vessel 27, and the composition of resin formula mixed liquor promptly mixes therein.Container 27 is connected container and spray gun with a high-pressure hose 29 as being pressurized to shown in 28 about 6.895 * 10 newton/square metre (100 pounds/square inch) pressure.Control valve V can control the flow that leads to spray gun, and speed control C can regulate the rotating speed of motor M.
When coated room 12 reaches the desired degree of depth or thickness, just can stop and solidify waiting.After finishing sclerosis, grinding just can be carried out to reach desired diameter and surface smoothness in the surface of overcoat.The cylinder that mill is good just has desired diameter, external form and surface smoothness like this.If desired, overcoat is ground or mills, also can on roll, process middle height, or comprise exhaust, other such profile profiles of draining mortise.
According to above explanation, the present invention can provide a kind of elastomer of spray deposited formula topped metal roller, and it has in demand such microstructure in the paper machine pressing roll mechanism.
In the specific embodiment of introducing in the above, polyurethane is that adding additives is not painted on the metal roller. Be appreciated that according to concrete application requirements, also can add a kind of binding agent to cylinder is simplified, or even add certain middle transition substrate, such as the fiber reinforcement material, and then add spraying.
Claims (11)
1, a kind of roll is characterized in that, comprises a simplified and simplified spray deposited elastomer overcoat that unrolls of metal, and this overcoat has the microstructure that comprises many small mutually isolated closed pores.
2, used roll in a kind of paper machine is characterized in that, comprises that a metal is simplified, and the coating of the polyurethane resin that its topped one deck is spray deposited is coated with the lapped face that the room has the stone shape.
3, a kind of paper machine roll, it is characterized in that, comprise a steel cylinder with face of cylinder, around and be bonded in the overcoat that forms by double elements solvent-free polyurethane resin spraying of above-mentioned periphery, the lapped face of this overcoat, and the aperture of countless small isolated sealings in the overcoat.
4, make the method for the topped formula roll of elastomer, it is characterized in that, comprise metal roll installed and put in the stroke that the nozzle jet moves, the length direction of shower nozzle along roll moved around, shower nozzle is supplied with a kind of elastomer resin prescription liquid that can rapid condensation, roll is rotated, the ratio and the control roll speed of rotation of control shower nozzle amount of movement and jet ejection flow, so that deposition one deck resin coating solidifies coating on cylinder, and the processing coating is to reach desired fineness.
5, the roll of claim 1 is characterized in that, about 2.54 to 50.8 millimeters of capping thickness (0.1 to 2 inch), about 0.019 to 0.185 millimeter of hole diameter.
6, the roll of claim 1 is characterized in that, the elastomer overcoat is a kind of solvent-free double elements polyurethane.
7, the roll of claim 1 is characterized in that, the overcoat case hardness is that A level 60 is to D level 70.
8, the roll of claim 2 is characterized in that, is coated with the room and is made up of the sprayed coating that many times carries out in succession.
9, extremely sharp 2 the roll that requires is characterized in that coating all contains the pore of the minute diameter of countless sealings in whole thickness.
10, the roll of claim 3 is characterized in that, middle hole diameter is about 0.019 to 0.185 millimeter.
11, the method for claim 4 is characterized in that, wherein shower nozzle is advanced many times along the roll direction, and each breaker roll surface imposes spraying in succession.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85103233 CN1017637B (en) | 1985-04-23 | 1985-04-23 | Urethane covered paper machine roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85103233 CN1017637B (en) | 1985-04-23 | 1985-04-23 | Urethane covered paper machine roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85103233A true CN85103233A (en) | 1986-10-29 |
| CN1017637B CN1017637B (en) | 1992-07-29 |
Family
ID=4793051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85103233 Expired CN1017637B (en) | 1985-04-23 | 1985-04-23 | Urethane covered paper machine roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1017637B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401004A (en) * | 2011-09-30 | 2012-04-04 | 南京金三力橡塑有限公司 | Polyurethane composite rubber roll and manufacture method thereof |
| CN104334796A (en) * | 2012-04-27 | 2015-02-04 | 福伊特专利公司 | Press roll with a roll cover consisting of polyurethane |
-
1985
- 1985-04-23 CN CN 85103233 patent/CN1017637B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401004A (en) * | 2011-09-30 | 2012-04-04 | 南京金三力橡塑有限公司 | Polyurethane composite rubber roll and manufacture method thereof |
| CN102401004B (en) * | 2011-09-30 | 2015-03-04 | 南京金三力橡塑有限公司 | Polyurethane composite rubber roll and manufacture method thereof |
| CN104334796A (en) * | 2012-04-27 | 2015-02-04 | 福伊特专利公司 | Press roll with a roll cover consisting of polyurethane |
| CN104334796B (en) * | 2012-04-27 | 2017-06-13 | 福伊特专利公司 | For manufacture and/or the roller of the press section of the machine of refined fiber web |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1017637B (en) | 1992-07-29 |
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| C13 | Decision | ||
| C14 | Grant of patent or utility model | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |