GB1470584A - Apparatus and method for making a metal print drum - Google Patents
Apparatus and method for making a metal print drumInfo
- Publication number
- GB1470584A GB1470584A GB1220274A GB1220274A GB1470584A GB 1470584 A GB1470584 A GB 1470584A GB 1220274 A GB1220274 A GB 1220274A GB 1220274 A GB1220274 A GB 1220274A GB 1470584 A GB1470584 A GB 1470584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- sleeve
- metal powder
- bag
- mould
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 title abstract 9
- 239000000843 powder Substances 0.000 abstract 5
- 230000006835 compression Effects 0.000 abstract 3
- 238000007906 compression Methods 0.000 abstract 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 2
- 238000005056 compaction Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
- B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
- B41J1/32—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/044—Rubber mold
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
1470584 Moulding metal printing cylinders by isostatic compression MOHAWK DATA SCIENCES CORP 19 March 1974 [9 May 1973] 12202/74 Heading B5A [Also in Division C7] A printing cylinder having raised characters on its outer surface is formed by isostatic compression of metal powder in the apparatus shown in Fig. 1, in which an expandable bag 32 may be pressurized to compact metal powder against a compressible sleeve 40 having character depressions 49 formed in its inner surface, the sleeve 40 being supported by rings 34, 38 and 42 between upper and lower rams 14 and 16 and an outer metal enclosure 20. A support cylinder 26 within the expandable bag 32 has bores 47 for the supply of pressure fluid 48 (glycerine) to the interior of the bag, via a bore 22 in the lower ram 16 and hydraulic pressure multiplier 52, from an hydraulic pump 54. To form the printing cylinder, the mould 18 comprising parts 26, 32, 34, 38 and 40 is removed from between upper and lower rams 14, 16, and filled with metal powder, filling being facilitated by vibration. The top ring 42 is then placed on the mould 18, which is then positioned between rams 14, 16 and lowered into enclosure 20. The metal powder is precompressed using the upper ram 14, after which the bag 32 is pressurized to assist compression, the pressure produced by the ram 14 being maintained higher than that produced by the bag 32. The mould and compacted metal drum are then removed by raising ram 16, and the mould disassembled to give the drum still inside the ring 38 and sleeve 40. The drum is machined, whilst still inside the ring 38, to the required internal diameter. The drum and sleeve are then pushed out of the ring 38, and the sleeve 40 removed from the drum by cutting. Before sintering, a mounting core which has also been produced by isostatic compaction of metal powder is inserted in the drum, and the whole sintered to give the final cylinder. As described with reference to Fig. 3, not shown, the character sleeve 40 may be produced by injection moulding of a glass fibre filled polyurethane composition.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US358560A US3922127A (en) | 1973-05-09 | 1973-05-09 | Apparatus for making a metal print drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1470584A true GB1470584A (en) | 1977-04-14 |
Family
ID=23410156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1220274A Expired GB1470584A (en) | 1973-05-09 | 1974-03-19 | Apparatus and method for making a metal print drum |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3922127A (en) |
| JP (1) | JPS5014401A (en) |
| DE (1) | DE2418814A1 (en) |
| GB (1) | GB1470584A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2137134A (en) * | 1983-02-10 | 1984-10-03 | Laeis Werke Ag | Method and apparatus for isostatic moulding of hollow articles having protrusions |
| WO1987001317A1 (en) * | 1985-09-04 | 1987-03-12 | Kb Cold Isostatic Press Systems Cips | Method of producing a cylinder lining device |
| US5310320A (en) * | 1990-04-27 | 1994-05-10 | Svenska Rotor Maskiner Ab | Rotor for a rotary screw machine having internal member and external shell made of pressed metal powder |
| CN102358085A (en) * | 2011-11-01 | 2012-02-22 | 四川省电力公司自贡电业局 | Type mould for hydraulic typewriter |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5372709A (en) * | 1976-12-10 | 1978-06-28 | Brother Ind Ltd | Printing hammer for printer |
| US4087221A (en) * | 1977-01-31 | 1978-05-02 | Remington Arms Company, Inc. | Apparatus for molding powder metal parts |
| FR2607445B1 (en) * | 1986-11-27 | 1993-07-30 | Banque De France | METHOD FOR THE SERIAL MANUFACTURE OF DIRECT TYPOGRAPHIC PRINTING ELEMENTS IN STEEL, AND APPARATUS FOR IMPLEMENTING THE METHOD |
| US5762843A (en) * | 1994-12-23 | 1998-06-09 | Kennametal Inc. | Method of making composite cermet articles |
| US7404707B2 (en) * | 2001-04-23 | 2008-07-29 | Leco Corporation | Sample mounting press |
| CN101111627B (en) | 2005-02-01 | 2012-05-09 | 东曹株式会社 | Sinter, sputtering target and molding die, and production process of sintered compact |
| US11534999B1 (en) | 2009-10-29 | 2022-12-27 | Us Synthetic Corporation | Reinforced press base, strengthening ring, and method of reinforcing a press base |
| US8910568B1 (en) | 2009-10-29 | 2014-12-16 | Us Synthetic Corporation | Reinforced press base, piston cavity sleeve, and method of reinforcing a press base |
| US20140183798A1 (en) * | 2012-12-28 | 2014-07-03 | Smith International, Inc. | Manufacture of cutting elements having lobes |
| CN106029265B (en) * | 2013-12-23 | 2018-12-14 | 史密斯国际有限公司 | The manufacture of cutting element with protrusion |
| US20240051195A1 (en) * | 2021-12-23 | 2024-02-15 | Arris Composites Inc. | Apparatus and Method for Controlling the Alignment of Fiber Loops in Compression Molded Articles |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2091973A (en) * | 1935-06-27 | 1937-09-07 | Gen Motors Corp | Apparatus for making ceramic articles |
| US2558823A (en) * | 1949-05-27 | 1951-07-03 | Henry L Crowley | Apparatus for molding articles |
| US2582922A (en) * | 1949-05-27 | 1952-01-15 | Henry L Crowley & Company Inc | Apparatus for molding articles |
| US2714226A (en) * | 1949-10-11 | 1955-08-02 | Westinghouse Electric Corp | Apparatus for molding plastic materials |
| US2871541A (en) * | 1957-07-29 | 1959-02-03 | United Concrete Pipe Corp | Mold for the end of concrete pipe and the like |
| US2965946A (en) * | 1958-10-02 | 1960-12-27 | Colgate Palmolive Co | Apparatus and process for pressing detergent bars and cakes |
| US3034191A (en) * | 1960-10-05 | 1962-05-15 | Gen Motors Corp | Isostatic molding apparatus |
| US3477096A (en) * | 1967-07-20 | 1969-11-11 | Nat Forge Co | Self-closing vacuum port for dry bag isostatic moulding press |
| US3619446A (en) * | 1968-02-02 | 1971-11-09 | Rowland Products Inc | Method for making resiliently faced rolls |
| US3561079A (en) * | 1968-03-11 | 1971-02-09 | Robinson Clay Product Co The | Apparatus for pressing of clay pipe using an elastomeric mandrel |
| US3594877A (en) * | 1969-10-24 | 1971-07-27 | Yuken Kogyo Co Ltd | Apparatus for manufacturing ceramic articles |
-
1973
- 1973-05-09 US US358560A patent/US3922127A/en not_active Expired - Lifetime
-
1974
- 1974-03-19 GB GB1220274A patent/GB1470584A/en not_active Expired
- 1974-04-19 DE DE2418814A patent/DE2418814A1/en active Pending
- 1974-05-09 JP JP49050804A patent/JPS5014401A/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2137134A (en) * | 1983-02-10 | 1984-10-03 | Laeis Werke Ag | Method and apparatus for isostatic moulding of hollow articles having protrusions |
| WO1987001317A1 (en) * | 1985-09-04 | 1987-03-12 | Kb Cold Isostatic Press Systems Cips | Method of producing a cylinder lining device |
| US5310320A (en) * | 1990-04-27 | 1994-05-10 | Svenska Rotor Maskiner Ab | Rotor for a rotary screw machine having internal member and external shell made of pressed metal powder |
| CN102358085A (en) * | 2011-11-01 | 2012-02-22 | 四川省电力公司自贡电业局 | Type mould for hydraulic typewriter |
| CN102358085B (en) * | 2011-11-01 | 2016-02-10 | 四川省电力公司自贡电业局 | Type mould for hydraulic typewriter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2418814A1 (en) | 1974-11-21 |
| US3922127A (en) | 1975-11-25 |
| JPS5014401A (en) | 1975-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |