GB2161899A - Method of making a roll - Google Patents
Method of making a roll Download PDFInfo
- Publication number
- GB2161899A GB2161899A GB08518131A GB8518131A GB2161899A GB 2161899 A GB2161899 A GB 2161899A GB 08518131 A GB08518131 A GB 08518131A GB 8518131 A GB8518131 A GB 8518131A GB 2161899 A GB2161899 A GB 2161899A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber
- arbor
- coverings
- covering
- covered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 235000019589 hardness Nutrition 0.000 claims description 22
- 239000003292 glue Substances 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 2
- 229920001875 Ebonite Polymers 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 238000010073 coating (rubber) Methods 0.000 claims description 2
- -1 e.g. Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 239000012763 reinforcing filler Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0032—Producing rolling bodies, e.g. rollers, wheels, pulleys or pinions
- B29D99/0035—Producing rolling bodies, e.g. rollers, wheels, pulleys or pinions rollers or cylinders having an axial length of several times the diameter, e.g. for embossing, pressing, or printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
- B29L2031/324—Rollers or cylinders having an axial length of several times the diameter, e.g. embossing, pressing or printing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
A rubber covered roll is made of three parts (8, 6, 10). The center rubber part (6) has a lesser durometer reading than the two end rubber parts (8, 10). The three rubber parts of the roll are placed on an arbor (2) and maintained under pressure while the two end parts are vulcanized to the center part; at the same time the composite vulcanized three-part rubber structure is bonded to the arbor. <IMAGE>
Description
SPECIFICATION
Method of making a roll
The invention is directed to a method of making a rubber covered roll.
Cylindrical devices having regions of differing hardness have been proposed. For example, in U.S Patent No. 3,666,335 there is disclosed a bushing with a central rubber coating having two ends of a greater hardness. These ends are either press fitted or cemented onto a supporting sleeve. U.S. Patent No. 1,919,375 discloses a rubber bearing structure having an inner hard rubber composition and an outer soft rubber composition. U.S. Patent No. 3,118,710 discloses a resilient joint having an inner rubber member and two outer plastic members.
There remains a need for an effective method of making such a device in which the end regions are of a different hardness from that of the central regions, especially where the device is to form a unitary structure.
The present invention is directed to a method of making a rubber-covered roll comprising a central rubber covering on an arbor and outer rubber coverings on each end of the arbor. The central rubber covering is of a lesser durometer reading than the two end coverings.
The present invention provides a method of making a rubber covered roll, comprising
(a) positioning a rubber covering of a first durometer hardness on the central region, and rubber coverings of higher durometer hardness than the first on each end region, of an arbor, the surface of the arbor contacting the coverings having a coating of adhesive thereon,
(b) applying pressure to the end coverings to force all the coverings into initimate contact, and
(c) subjecting the rubber covered arbor to heat to vulcanize the end coverings to the central covering and bond the composite rubber covering to the arbor.
The adhesive used to bond the rubber coverings is conveniently heat-activated. Many such adhesives are known; the arbor is conventionally a metal shaft and a number of different adhesives are available for bonding rubber to metal.
The hardnesses of the rubber are not critical to the invention; a typical hardness for the central covering is a (Shore A) durometer reading of 65 and for the outer coverings a reading of 85.
Examples of suitable compositions for the rubber coverings are described in detail in
U.S. Patent No. 3,505,267, the disclosure of which is incorporated herein by reference, and to which the reader is referred for full information. Briefly, there may be used an NBR rubber containing normally 25 to 40% acrylonitrile with a reinforcing filler, e.g., carbon black, softeners and other customary additives and a sulfur-containing curing system, the proportions of the relevant ingredients being chosen to give the desired durometer reading in the vulcanized product. Other compositions suitable for use in the invention will be apparent to those skilled in the art, as will the measures needed to achieve appropriate differences in hardness.
One form of arbor with a rubber covering constructed in accordance with the invention will now be described in greater detail by way of example only with reference to the accompanying drawing which is a cross-section of such an arbor.
Referring now to the drawing, in one embodiment of the method according to the invention there is provided an arbor 2 which is to be covered with a rubber covering. The arbor is initially covered with a glue coating 4 which will ultimately bond the rubber covering to the arbor. The glue is a heat activated glue and is conventional in the art. The first rubber material 6 is placed over the central region of the arbor 2; this material has a durometer reading of 65. An end cap 5 is placed on each end of the arbor and bolted thereto by bolts 3. It will cover almost all of the end of the rubber material 6 except for the surface 7, the outer annulus thereof. The second and third rubber coverings are then placed over the arbor at each end of the rubber covering 6.These rubber coverings 8 and 10 are generally of a greater hardness than the rubber covering 6; in this embodiment, they have a durometer reading of 85. Pressure is applied in the direction of the arrows 1 2 by the end caps 11 to hold the three rubber coverings in an intimate contact, particularly at their ends at surface 7. The complete rubber covered arbor is wrapped with nylon tape 14 to apply pressure to the rubber coverings 6, 8 and 1 0. While the pressure is maintained, the total structure is subjected to heat to vulcanize the second and third rubber coverings to the end portion 7 of the first rubber covering.
Vulcanization is carried out by heating the assembly to 305"F (about 150"C) for 1-3/4 hours. At the same time, the heat activated glue 4 will bond the resulting composite structure of rubber material to the arbor. The composite rubber structure is in effect the vulcanized together two hard end members 8 and 10 and soft rubber center section 6.
The rubber coverings 6, 8 and 10 are conventional rubber compounds; they should merely be of different hardnesses and be capable of being vulcanized. As indicated above, typical compounds used are those set forth in U.S. Patent No. 3,505,267.
1. A method of making a rubber covered roll, comprising
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (5)
1. A method of making a rubber covered roll, comprising
(a) positioning a rubber covering of a first durometer hardness on the central region, and rubber coverings of higher durometer hardness than the first on each end region, of an arbor, the surface of the arbor contacting the coverings having a coating of adhesive thereon,
(b) applying pressure to the end coverings to force all the coverings into intimate contact, and
(c) subjecting the rubber covered arbor to heat to vulcanize the end coverings to the central covering and bond the composite rubber covering to the arbor.
2. A method of making a rubber covered roll comprising the steps of:
(a) providing an arbor which is to be covered with a rubber covering, said arbor being covered with a glue coating,
(b) placing a first rubber covering of a lesser durometer reading on the central region of the arbor,
(c) placing a second and third rubber covering of a greater durometer reading on the two end regions of the arbor,
(d) applying pressure to the two end rubber coverings to force all three rubber coverings into intimate contact, and
(e) subjecting the rubber covered arbor to the heat to vulcanize the second and third rubber coverings to the ends of the first rubber covering and to bond by glue the composite rubber covering to the arbor.
3. A method of making a rubber covered roll carried out substantially as described with reference to and as illustrated by the accompanying drawing.
4. A rubber covered roll whenever made by a method as claimed in any one of claims
1 to 3.
5. Any new feature herein disclosed or any new combination of herein disclosed features.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63242484A | 1984-07-19 | 1984-07-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8518131D0 GB8518131D0 (en) | 1985-08-21 |
| GB2161899A true GB2161899A (en) | 1986-01-22 |
| GB2161899B GB2161899B (en) | 1987-12-31 |
Family
ID=24535472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08518131A Expired GB2161899B (en) | 1984-07-19 | 1985-07-18 | Method of making a roll |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS6131240A (en) |
| BE (1) | BE902858A (en) |
| DE (1) | DE3521100A1 (en) |
| DK (1) | DK214385A (en) |
| FR (1) | FR2567808A1 (en) |
| GB (1) | GB2161899B (en) |
| IN (1) | IN164203B (en) |
| IT (1) | IT1184517B (en) |
| LU (1) | LU85917A1 (en) |
| NL (1) | NL8500865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2240156A (en) * | 1990-01-19 | 1991-07-24 | Simon Container Mach Ltd | Friction material clad rollers or pulleys |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2713021B2 (en) * | 1992-04-20 | 1998-02-16 | 日本ピー・エム・シー株式会社 | Surface paper quality improver |
| CN108486707B (en) * | 2018-03-17 | 2021-11-09 | 江阴市东杰纺机专件有限公司 | Split type compact spinning roller and processing technology thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE530188C (en) * | 1926-11-19 | 1931-07-23 | Christian Hamilton Gray | Roller, in particular paper machine press roller with soft rubber cover |
| DE829831C (en) * | 1950-05-03 | 1952-01-28 | Franz Clouth Rheinische Gummiw | Roller with a soft roller body |
| US2850767A (en) * | 1955-04-14 | 1958-09-09 | Burke Golf Equipment Corp | Method and apparatus for molding covers upon shaft members |
| US3750250A (en) * | 1972-08-31 | 1973-08-07 | Bingham S Co | Printer{40 s roller and method of making same |
| CA1061823A (en) * | 1975-06-30 | 1979-09-04 | Robert W. Hill | Method of sealing the ends of an elastomeric roll |
| JPS54126379A (en) * | 1978-03-23 | 1979-10-01 | Showa Electric Wire & Cable Co | Double layer rubber roller and its preparation |
-
1985
- 1985-03-25 NL NL8500865A patent/NL8500865A/en not_active Application Discontinuation
- 1985-04-30 IT IT20537/85A patent/IT1184517B/en active
- 1985-05-08 JP JP9616385A patent/JPS6131240A/en active Pending
- 1985-05-13 FR FR8507192A patent/FR2567808A1/en not_active Withdrawn
- 1985-05-14 DK DK214385A patent/DK214385A/en not_active Application Discontinuation
- 1985-05-30 LU LU85917A patent/LU85917A1/en unknown
- 1985-06-12 DE DE19853521100 patent/DE3521100A1/en active Granted
- 1985-07-10 IN IN540/DEL/85A patent/IN164203B/en unknown
- 1985-07-11 BE BE0/215325A patent/BE902858A/en not_active IP Right Cessation
- 1985-07-18 GB GB08518131A patent/GB2161899B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2240156A (en) * | 1990-01-19 | 1991-07-24 | Simon Container Mach Ltd | Friction material clad rollers or pulleys |
Also Published As
| Publication number | Publication date |
|---|---|
| LU85917A1 (en) | 1986-01-14 |
| DK214385D0 (en) | 1985-05-14 |
| GB2161899B (en) | 1987-12-31 |
| DK214385A (en) | 1986-01-20 |
| IT1184517B (en) | 1987-10-28 |
| DE3521100A1 (en) | 1986-01-30 |
| IT8520537A0 (en) | 1985-04-30 |
| JPS6131240A (en) | 1986-02-13 |
| DE3521100C2 (en) | 1987-01-02 |
| BE902858A (en) | 1985-11-04 |
| GB8518131D0 (en) | 1985-08-21 |
| NL8500865A (en) | 1986-02-17 |
| FR2567808A1 (en) | 1986-01-24 |
| IN164203B (en) | 1989-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |