GB757602A - Improvements in or relating to a method and means for the mechanical preparation of moulds from granular material - Google Patents
Improvements in or relating to a method and means for the mechanical preparation of moulds from granular materialInfo
- Publication number
- GB757602A GB757602A GB26111/53A GB2611153A GB757602A GB 757602 A GB757602 A GB 757602A GB 26111/53 A GB26111/53 A GB 26111/53A GB 2611153 A GB2611153 A GB 2611153A GB 757602 A GB757602 A GB 757602A
- Authority
- GB
- United Kingdom
- Prior art keywords
- moulding
- frame
- box
- piston
- sand
- 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
Classifications
-
- 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
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/10—Compacting by jarring devices only
- B22C15/12—Compacting by jarring devices only involving mechanical gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
- B22C15/30—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing by both pressing and jarring devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
757,602. Moulding-machines. BUHRER, E. Sept. 22, 1953 [Oct. 22, 1955], No. 26111/53. Class 83 (1). In foundry moulding, the granular material is subjected to a preliminary and a final compression, and a surplus of material is initially poured over the pattern and removed between the preliminary and final compression operations, the surplus material being supported by means which increase the height of the moulding-box. A moulding-machine comprises a ramming piston 2 and a jolt piston 3, a pattern-plate and pattern 4, 5, being supported on a jolt table 3a. A frame 7 is supported by taperpins 37 on a head 36 which is rotatable about, and vertically movable by means of, a piston-rod 38, so that the frame may be swung into a position resting on a moulding-box 6, the piston-rod 38 being lowered so that the pins 37 disengage from the frame 7. The edges of the frame form a pyramid-shaped extension to the moulding-box, and sand is fed thereto from a silo 43 through a sieve 42 vibrated by an electromagnet 44, a predetermined amount being sieved by a time switch in the control circuit. The flask is then jolted and surplus sand removed by a knife 8 which is moved across the frame 7 by endless-chains driven through a piston-operated rack, pins on the chain-sprockets 13 opening a flap 9 to allow the surplus sand to be swept therethrough by the knife. The jolting-blow is resiliently damped by bar-type impact members 46 in the press piston 2, made of highly elastic material such as synthetic resins re- . inforced with fabric or paper, so that the uniformity of the packing is improved. The frame 7 is then engaged by the pins 37 and lifted off the frame 6, leaving the precompressed sand projecting above the top of the moulding- box. A squeeze board 30 is then rotated into position over the moulding-box, which is pressed against it to compress the sand as far as the top edge of the moulding box.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH757602X | 1952-10-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB757602A true GB757602A (en) | 1956-09-19 |
Family
ID=4534401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26111/53A Expired GB757602A (en) | 1952-10-22 | 1953-09-22 | Improvements in or relating to a method and means for the mechanical preparation of moulds from granular material |
Country Status (4)
Country | Link |
---|---|
US (1) | US2842817A (en) |
BE (1) | BE523431A (en) |
DE (1) | DE1058702B (en) |
GB (1) | GB757602A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH604967A5 (en) * | 1974-12-10 | 1978-09-15 | Erwin Buehrer | |
US4593739A (en) * | 1983-12-30 | 1986-06-10 | Outboard Marine Corporation | Method of and apparatus for packing sand around a mold pattern by vibration |
CN105252809A (en) * | 2015-11-10 | 2016-01-20 | 北京京城环保股份有限公司 | Die and method for curing molding of bulk materials |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE106821C (en) * | ||||
US177395A (en) * | 1876-05-16 | Improvement in molder s flasks | ||
US386951A (en) * | 1888-07-31 | Art of preparing sand molds | ||
US329814A (en) * | 1885-11-03 | Machine for molding wheels | ||
US33291A (en) * | 1861-09-17 | Heney a | ||
US704952A (en) * | 1894-05-11 | 1902-07-15 | Marcellin C Adams | Method of forming sand molds. |
AT57020B (en) * | 1911-12-18 | 1912-12-27 | Bernhard Keller | Method and machine for compacting the molding sand by vibrating. |
US1554402A (en) * | 1921-08-27 | 1925-09-22 | Frederich W Burgdorfer | Molding apparatus |
US1756776A (en) * | 1926-06-02 | 1930-04-29 | New Process Multi Castings Com | Molding machine |
US1806042A (en) * | 1929-10-31 | 1931-05-19 | Lionel A Carter | Machine for filling molding flasks |
US1962734A (en) * | 1931-04-10 | 1934-06-12 | Western Electric Co | Vibrating screen for molding |
GB394667A (en) * | 1931-12-28 | 1933-06-28 | Carborundum Co | Improvements in or relating to bonded articles such as abrasive wheels, and methods of making them |
DE741383C (en) * | 1933-12-08 | 1943-11-10 | Zimmermann Gustav | Ruettelforming machine |
US2209792A (en) * | 1938-02-14 | 1940-07-30 | S P O Inc | Molding machine |
US2420392A (en) * | 1942-12-21 | 1947-05-13 | Herbert S Simpson | Foundry sand reclaiming system and method |
DE833243C (en) * | 1946-01-28 | 1952-03-06 | Fischer Ag Georg | Forming machine with rocking piston |
US2533959A (en) * | 1948-12-09 | 1950-12-12 | Fischer Ag Georg | Shockless jolting device for molding machines |
US2614303A (en) * | 1949-09-21 | 1952-10-21 | Duncan Foundry And Machine Wor | Molding process |
-
0
- BE BE523431D patent/BE523431A/xx unknown
-
1953
- 1953-09-18 DE DEB27532A patent/DE1058702B/en active Pending
- 1953-09-22 GB GB26111/53A patent/GB757602A/en not_active Expired
- 1953-10-14 US US385999A patent/US2842817A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2842817A (en) | 1958-07-15 |
BE523431A (en) | |
DE1058702B (en) | 1959-06-04 |
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