US3794458A - Vacuum brick press having movable loading and unloading means - Google Patents

Vacuum brick press having movable loading and unloading means Download PDF

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Publication number
US3794458A
US3794458A US00265739A US3794458DA US3794458A US 3794458 A US3794458 A US 3794458A US 00265739 A US00265739 A US 00265739A US 3794458D A US3794458D A US 3794458DA US 3794458 A US3794458 A US 3794458A
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United States
Prior art keywords
mold
piston
plate
servo
cylinder
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Expired - Lifetime
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US00265739A
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English (en)
Inventor
S Iwasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsuishi Fukai Tekkosho KK
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Mitsuishi Fukai Tekkosho KK
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
    • B30B15/0017—Deairing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/44—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for treating with gases or degassing, e.g. for de-aerating
    • 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

Definitions

  • a brick press includes a fixed lower frame and an upper movable frame.
  • the upper movable frame has 14 1 Feb. 26, 1974 thereon an upper movable piston.
  • Mounted on the lower fixed frame are parallel rails.
  • a transfer table has mounted thereon a mold andis movable horizontally along the rails into and out of alignment with the upper movable piston.
  • a lower piston is carried with the transfer table in alignment with the mold.
  • First movable chamber forming means are mounted coaxial with the upper piston and adapted to seal against the top of the mold when the mold is aligned with the upper piston to create a sealed chamber, the pressure of which may be selectively reduced.
  • Mounted beneath the transfer table and coaxial with the lower piston is a second chamber forming means which may be selectively engaged with the top of the lower fixed frame to form a second chamber, thepressure of which may be selectively reduced.
  • the upper piston is actuated to press the brick material against the lower piston.
  • the upper piston is raised, the two chamber forming means are retracted, and the transfer table and mold are again moved along the rails out of alignment with the upper piston. Then the finished brick may be removed from the mold, and new brick material may be. added thereto.
  • the present invention relates to a brick press of the type wherein a brick is formed by pressing a powdered brick raw material in a mold by opposed pistons. More particularly, the present invention is directed to such a brick press which includes the provision for eliminating air from the raw material during compression thereof by the pistons. Even more particularly, the present invention relates to such a brick press which includes means providing for the efficient and rapid loading and unloading of the brick press.
  • the upper movable frame has thereon an upper movable piston.
  • Mounted on the lower fixed frame are parallel rails.
  • a transfer table has mounted thereon a mold and is movable horizontally along the rails into and out of alignment with the upper movable piston.
  • a lower piston is carried with the transfer table in alignment with the mold.
  • First movable chamber forming means are mounted coaxial with the upper piston and adapted to seal against the top of the mold when the mold is lower fixed frame to form a second chamber, the pressure of which may be selectively reduced.
  • the upper and lower chamber forming means are then actuated to isolate the brick material.
  • the pressure within these chambers and within the brick material is then reduced, and the upper piston is actuated to press the brick material against the lower piston.
  • the upper piston is raised, the two chamber forming means are retracted, and the transfer table and mold are again moved along the rails out of alignment with the upper piston. Then, the finished brick may be removed from the mold, and new brick material may be added thereto.
  • FIG. 1 is an end view, partially in cross-section, of the first embodiment of the present invention
  • FIG. 2 is a side view, partially in cross-section, of the embodiment of the invention illustrated in FIG. 1; I
  • FIG. 3 is'an end view, partially in cross-section, of a second embodiment of the present invention.
  • FIG. 4 is a side view, partially in cross-section, of the embodiment of the invention illustrated in FIG. 3.
  • FIGS. 1 and 2 of the drawings a first preferred embodiment of the present invention will be described in more detail.
  • a stationary frame 7 has attached thereto vertical columns which support a movable frame 4. Attached to the movable frame 4 is a movable piston 2. Frame 4 and piston 2 areindependently selectively movable in a vertical direction by suitable and conventional drive means (not shown). Mounted on the upper surface of lower fixed frame 7 are parallel horizontal rails 8. A transfer table 6 is movable along rails 8 by suitable means such as wheels 15. Mounted on transfer table 6 is a brick mold l. Positioned within mold 1 and extending downwardly through an opening in transfer table 6 is a lower piston 3. As shown in FIG. 2, transfer table 6, mold l and lower piston 3 may be selectively moved from a first loading and unloading position, shown in FIG. 2, a suitable distance D to a second position in alignment with upper piston 2, as shown in F IG. 1
  • a first upper bellows 9 has its upper end sealingly attached to the lower surface of movable frame 4.
  • the lower end of bellows 9 is sealingly attached to a plate 10 which is supported by the piston rods of-a plurality of servo-cylinders 11.
  • upper bellows 9 and upper plate 10 are concentric with upper piston 2.
  • an air tight resilient ring 10a On the under surface of plate 10 is an air tight resilient ring 10a which is adapted to create an air tight seal with the upper surface of mold 1 when servo-cylinders 11 are actuated in a downward manner.
  • a second bellows 12 has its upper end sealingly attached to the bottom surface of transfer table 6, and its lower end sealingly attached to the upper surface of a lower plate 13, which is supported by the piston rods of servo-cylinders 14.
  • On the undersurface of plate 13 is an air tight resilient ring 20 which is adapted to create an air tight seal with the upper surface of fixed frame 7 when the servo-cylinders 14 are actuated in a downwardly directed manner.
  • servocylinders 11 and 14 are actuated upwardly to release plate from mold 1 and plate 13 from frame 7.
  • Transfer table 6 mold 1 and lower piston 3 are then moved along rails 8 by the distance D to the position shown in FIG. 2, such that lower piston 3 is in alignment with a brick removal means, such as air cylinder 3, which may be selectively raised, thereby raising lower piston 3 and removing the finished brick from the mold.
  • Air cylinder 3' and lower piston 3 are then returned to their original positions, and new powdered brick raw material may be filled into mold 1.
  • Transfer table 6 mold 1 and lower piston 3 are then moved back into the position illustrated in FIG. 1, such that mold 1 and lower piston 3 are in alignment with upper piston 2.
  • Servo-cylinders 11 and 14 are then downwardly actuated, thereby causing ring 10a to create a seal with the upper surface of mold l and resilient ring 20 to create a seal with the upper surface of frame 7, respectively.
  • vacuum pump 18 is actuated to create a desired degree of vacuum within bellows 9 and 12 and the raw brick material.
  • upper piston 2 is moved downwardly in a conventional manner to press the raw brick material between pistons 2 and 3 and thus form a brick. Since vacuum has been created within bellows 9 and 12 and the brick material, there will be no compression of air during the pressing operation. It will be apparent that as the result, the quality of the bricks produced will be improved and the efficiency of the pressing operation will be substantially increased.
  • lines 16 and 17 are placed in communication with positive pressure air source 19, thereby raising the air pressure within bellows 9 and 12.
  • Servo-cylinders 11 and 14 are actuated upwardly to move resilient rings 10a and 20 out of contact with mold 1 and frame 7, respectively. This entire operation is again repeated.
  • FIGS. 3 and 4 of the drawings a modified embodiment of the present invention will be described in detail.
  • the modified embodiment may be the same in all respects as the embodiment illustrated in FIGS. 1 and 2, with the exception of the means for forming an air tight chamber around the pistons.
  • Attached to the lower surface of upper frame 4 is a cylinder 9'.
  • Movably surrounding the outer surface of cylinder 9' and creating an air tight seal therewith is an upwardly extending flange of plate 10 which is supported by the pistons of servo-cylinders 11.
  • a cylinder 12' is attached to the lower surface of transfer table 6 .
  • FIGS. 3 and 4 The inner surface of plate 13' is movably mounted around the outer surface of cylinder 12 and creates an air tight seal therewith. Plate 13 is supported by the pistons of servo-cylinders 14.
  • the operation of the device illustrated'in FIGS. 3 and 4 is precisely the same as that described above with regard to FIGS.. 1 and 2. However, rather than the provision of a bellows, the modified embodiment of FIGS. 3 and 4 creates air tight chambers around the pistons by means of the above described cylinders and plates.
  • the total brick pressing operation may now be more automated than previous operations, thereby reducing the cost of brick manufacture.
  • a brick press of the type including a lower. piston positioned above a lower frame, an upper piston mounted on an upper frame to oppose said lower piston, a mold for supporting brick raw material between said pistons, and means for moving one of said pistons toward the other for pressing therebetween said raw material; the improvement comprising transfer means supporting said mold and lower piston for substantially horizontal movement from a first piston out of alignment with said upper piston to a second position in alignment with said upper position; first chamber forming means to selectively create a first air tight chamber enclosing said upper piston and said raw material when said mold and lower piston are in said second position; second chamber forming means to selectively create a second air tight chamber enclosing said lower piston and said raw material when said mold and lower piston are in said second position; said raw material being enclosed in said chambers; and means to selectively create a vacuum in said chambers and within said raw material wherein said means to selectively create a vacuum in said second chamber comprises a conduit defined by said lower frame which conduit operatively communicates with said second chamber.
  • said transfer means comprises a rail-mounted transfer table having an opening therein, said mold being positioned on said transfer table above said opening, and said lower piston being positioned within said mold and extending downwardly through said opening.
  • said first chamber forming means comprises a first bellows surrounding said upper piston and having an upper end sealed to said upper frame and a lower end movable to create a seal with said mold when said mold is in said second position; and wherein said second chamber forming means comprises a second bellows surrounding said lower piston and having an upper end sealed to said transfer table and a lower end movable to create a seal with said lower frame when said lower piston is in said second position.
  • said first chamber forming means further comprises a first plate sealed to said lower end of said first bellows, at
  • said second chamber forming means further comprises a second plate sealed to said lower end of said second bellows, at least one second servo-cylinder supporting said plate on said transfer table, said second servo-cylinder movable to selectively move said second plate toward and away from said lower frame, and a second resilient ring positioned on said second plate and adapted to contact said lower frame when said second servo-cylinder moves said second plate toward said lower frame.
  • said first chamber forming means comprises a first cylinder surrounding said upper piston and having an upper end sealed to said upper frame, a first plate surrounding said first cylinder and creating a seal with the outer periphery thereof, at least one first servo-cylinder supporting said first plate on said upper frame, said first servo-cylinder movable to selectively move said first plate toward and away from said mold when said mold is in said second position, and a first resilient ring positioned on said first plate and adapted to contact said mold when said first servo-cylinder moves said first plate toward said mold.
  • said second chamber forming means comprises a second cylinder surrounding said lower piston and having an upper end sealed to said transfer table, a second plate surrounding said second cylinder and creating a seal with the outer periphery thereof, at least one second servo-cylinder supporting said second plate on said transfer table, said second servo-cylinder movable to selectively move said second plate toward and away from said lower frame when said lower piston is in said second position, and a second resilient ring positioned on said second plate and adapted tocontact said lower frame when said second servo-cylinder moves said second plate toward said lower frame.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
US00265739A 1971-08-02 1972-06-23 Vacuum brick press having movable loading and unloading means Expired - Lifetime US3794458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46058161A JPS4844307A (enrdf_load_stackoverflow) 1971-08-02 1971-08-02

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52125511A (en) * 1976-01-13 1977-10-21 Bettonica Luigi Press molding machine for such hollow shape ceramics as cylindrical or conic
US4140453A (en) * 1977-09-23 1979-02-20 Westinghouse Electric Corp. Press apparatus enclosure arrangement
WO1980002250A1 (en) * 1979-04-20 1980-10-30 Mitsuishi Fukai Iron Works Moulding machine for bricks or the like
EP0053187A4 (en) * 1980-05-21 1983-04-18 Mitsuishi Fukai Iron Works DEVICE FOR PRODUCING BRICKS UNDER VACUUM.
US4551085A (en) * 1983-04-25 1985-11-05 The Budd Company Compression molding apparatus having vacuum chamber
US4631015A (en) * 1981-05-08 1986-12-23 Mitsuishi Fukai Tekkosho, Ltd. Molding apparatus with replaceable plunger and die set
US4781567A (en) * 1987-10-28 1988-11-01 Warner-Lambert Company Compaction evaluation apparatus
US4880373A (en) * 1988-04-28 1989-11-14 The Upjohn Company Tablet press
US5236658A (en) * 1988-08-18 1993-08-17 Norford Industries Pty. Ltd. Process and apparatus for heat forming of materials
US5928680A (en) * 1996-08-27 1999-07-27 Tadion; Jay Apparatus for making samples for infrared analysis
US6110313A (en) * 1996-03-27 2000-08-29 Norford Industries Pty Limited Method for heat forming solid surface veneer
WO2001007223A1 (de) * 1999-07-23 2001-02-01 Robert Bosch Gmbh Verfahren zum pressen zylindrischer verbundkörper
US20120183349A1 (en) * 2011-01-13 2012-07-19 Radovan Kropacek Paving Apparatus
US20140367251A1 (en) * 2013-06-18 2014-12-18 Sony Corporation Sintering apparatus, method of manufacturing sintered compact, and target material
CN105946273A (zh) * 2016-05-23 2016-09-21 上海美诺福科技股份有限公司 一种压片机和全自动制渣机
CN106292761A (zh) * 2015-06-08 2017-01-04 佛山市恒力泰机械有限公司 一种陶瓷粉料液压自动压制机排气的控制方法及装置
US9931684B2 (en) 2014-04-18 2018-04-03 Honda Motor Co., Ltd. Forming die and method of using the same
US10105742B2 (en) 2014-12-09 2018-10-23 Honda Motor Co., Ltd. Draw press die assembly and method of using the same
FR3127708A1 (fr) * 2021-10-04 2023-04-07 Filiaterre Dispositif pour la fabrication d’un bloc de terre comprimée de grandes dimensions, procédé de fabrication et bloc de terre comprimée obtenu par un tel procédé

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52150409A (en) * 1976-06-09 1977-12-14 Mitsuishi Fukai Iron Works Brick molding apparatus in vacuum chamber
JPS5968205A (ja) * 1982-10-14 1984-04-18 株式会社三石深井鉄工所 真空式煉瓦成形装置
JPS60229711A (ja) * 1984-04-27 1985-11-15 コ−タキ株式会社 成形装置
JPH0335532Y2 (enrdf_load_stackoverflow) * 1984-10-03 1991-07-29
JPS6345287Y2 (enrdf_load_stackoverflow) * 1984-10-03 1988-11-24
JPS63183809A (ja) * 1987-01-27 1988-07-29 株式会社　宮園製作所 窯業製品の圧縮成形装置
JP5711513B2 (ja) * 2010-12-13 2015-04-30 カヤバ工業株式会社 冷間塑性加工装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US770251A (en) * 1904-04-30 1904-09-20 Richard Arnsen Block-press.
US3689186A (en) * 1969-06-16 1972-09-05 Von Roll Ag Apparatus for manufacturing blocks or the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US770251A (en) * 1904-04-30 1904-09-20 Richard Arnsen Block-press.
US3689186A (en) * 1969-06-16 1972-09-05 Von Roll Ag Apparatus for manufacturing blocks or the like

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52125511A (en) * 1976-01-13 1977-10-21 Bettonica Luigi Press molding machine for such hollow shape ceramics as cylindrical or conic
US4140453A (en) * 1977-09-23 1979-02-20 Westinghouse Electric Corp. Press apparatus enclosure arrangement
WO1980002250A1 (en) * 1979-04-20 1980-10-30 Mitsuishi Fukai Iron Works Moulding machine for bricks or the like
EP0053187A4 (en) * 1980-05-21 1983-04-18 Mitsuishi Fukai Iron Works DEVICE FOR PRODUCING BRICKS UNDER VACUUM.
US4631015A (en) * 1981-05-08 1986-12-23 Mitsuishi Fukai Tekkosho, Ltd. Molding apparatus with replaceable plunger and die set
US4551085A (en) * 1983-04-25 1985-11-05 The Budd Company Compression molding apparatus having vacuum chamber
US4781567A (en) * 1987-10-28 1988-11-01 Warner-Lambert Company Compaction evaluation apparatus
US4880373A (en) * 1988-04-28 1989-11-14 The Upjohn Company Tablet press
US5236658A (en) * 1988-08-18 1993-08-17 Norford Industries Pty. Ltd. Process and apparatus for heat forming of materials
US6110313A (en) * 1996-03-27 2000-08-29 Norford Industries Pty Limited Method for heat forming solid surface veneer
US5928680A (en) * 1996-08-27 1999-07-27 Tadion; Jay Apparatus for making samples for infrared analysis
US6524414B1 (en) 1999-07-23 2003-02-25 Robert Bosch Gmbh Method for pressing cylindrical composite bodies
WO2001007223A1 (de) * 1999-07-23 2001-02-01 Robert Bosch Gmbh Verfahren zum pressen zylindrischer verbundkörper
US20120183349A1 (en) * 2011-01-13 2012-07-19 Radovan Kropacek Paving Apparatus
US8342773B2 (en) * 2011-01-13 2013-01-01 Radovan Kropacek Paving apparatus
US9771305B2 (en) * 2013-06-18 2017-09-26 Sony Semiconductor Solutions Corporation Sintering apparatus, method of manufacturing sintered compact, and target material
US20140367251A1 (en) * 2013-06-18 2014-12-18 Sony Corporation Sintering apparatus, method of manufacturing sintered compact, and target material
CN104233203A (zh) * 2013-06-18 2014-12-24 索尼公司 烧结装置、烧结体的制造方法和靶材
CN104233203B (zh) * 2013-06-18 2019-07-12 索尼半导体解决方案公司 烧结装置、烧结体的制造方法和靶材
US9931684B2 (en) 2014-04-18 2018-04-03 Honda Motor Co., Ltd. Forming die and method of using the same
US10105742B2 (en) 2014-12-09 2018-10-23 Honda Motor Co., Ltd. Draw press die assembly and method of using the same
US11235369B2 (en) 2014-12-09 2022-02-01 Honda Motor Co., Ltd. Draw press die assembly and method of using the same
CN106292761A (zh) * 2015-06-08 2017-01-04 佛山市恒力泰机械有限公司 一种陶瓷粉料液压自动压制机排气的控制方法及装置
CN106292761B (zh) * 2015-06-08 2019-02-15 佛山市恒力泰机械有限公司 一种陶瓷粉料液压自动压制机排气的控制方法及装置
CN105946273B (zh) * 2016-05-23 2018-01-19 上海美诺福科技股份有限公司 一种压片机和全自动制渣机
CN105946273A (zh) * 2016-05-23 2016-09-21 上海美诺福科技股份有限公司 一种压片机和全自动制渣机
FR3127708A1 (fr) * 2021-10-04 2023-04-07 Filiaterre Dispositif pour la fabrication d’un bloc de terre comprimée de grandes dimensions, procédé de fabrication et bloc de terre comprimée obtenu par un tel procédé

Also Published As

Publication number Publication date
JPS4844307A (enrdf_load_stackoverflow) 1973-06-26

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