US3800695A - Side gap press and frame structure therefor - Google Patents

Side gap press and frame structure therefor Download PDF

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Publication number
US3800695A
US3800695A US00219004A US3800695DA US3800695A US 3800695 A US3800695 A US 3800695A US 00219004 A US00219004 A US 00219004A US 3800695D A US3800695D A US 3800695DA US 3800695 A US3800695 A US 3800695A
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US
United States
Prior art keywords
column
press
yokes
frame
side gap
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 - Lifetime
Application number
US00219004A
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English (en)
Inventor
F Jonsson
S Trolle
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.)
Carbox AB
Original Assignee
Carbox AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carbox AB filed Critical Carbox AB
Application granted granted Critical
Publication of US3800695A publication Critical patent/US3800695A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/042—Prestressed frames

Definitions

  • the press frame is acted upon by an external frame comprising biased wires or tapes exerting on the column, or a portion adjacent the press tools,va considerably greater compressive pre-stressing load than that to which column or column portions at a greater distance from the tools are subjected.
  • the frame of so called gap presses or goose-necked presses can be defined as having generally the configuration of a U with horizontal legs, the vertical web portion of the U corresponding to the single column of the frame.
  • Such frames can either be cast or assembled by welding and their press tools are mounted between the mutually apposed free ends of the horizontal legs.
  • the primary advantage of such a configuration is that the space at disposal around the press tools is limited by the sole column only which means that the press can be used also for very large work pieces.
  • the geometry of the frame above described also implies significant disadvantages relating to the strength properties of the frame and arising due to the fact that the horizontal as well as the vertical frame portions are subjected to bending stresses. Moreover, where those portions meet in the comers there arise tensile stresses resulting in very high stress concentrations.
  • a pair of parallel yokes are separated by at least one column.
  • An external frame is located to exert on the column, or a portion which is closest to the press tool, a compressive pre-stressing load which is greater than that to which the column, or the portion adjacent the press tool, is subjected when the press is in operation.
  • the press illustrated in the drawing has a frame supported by a base consisting of two extended feet I and 2.
  • the frame proper comprises a lower horizontal yoke 3 and an upper horizontal yoke 4, the two yokes being spaced by two vertical columns 5 and 6.
  • column 5 is located between two opposed ends of yokes 3 and 4 whereas column 6 is centrally located between the two ends of each yoke.
  • those tools are constituted by a lower die 7 mounted on yoke 3 and by a ram 8 reciprocable within a hydraulic cylinder 9 suspended from the upper yoke 4.
  • Reference numerals l0 and ll designate piping for supplying hydraulic fluid to cylinder 9 which, as is realized, should be doubleacting.
  • the press here illustrated differs from prior arthigh pressure equipment in having one of its columns displaced from the'yoke ends to a central portion.
  • the invention does also have a second important main characteristic residing therein that its external reinforcing frame 12 is rotated through as compared with the prior art machines. Stated in other words this means that frame 12 is mounted crosswise relatively to the longitudinal plane of the frame 3-6. It does also appear from the drawing that frame 12 surrounds column 6. Between the top surface of yoke 4 and the inner curved wall of the substantially oval reinforcing frame 12 there is inserted a piece 13 matching the contour of yoke 4 to that of frame 12 thus distributing evenly the forces transferred from frame 12 to yoke 4.
  • reference numeral 14 refers to biased wires, tapes or the like which form the active parts of reinforcing frame 12.
  • the reinforcing frame according to this invention can be constituted by any suitable arrangement designed and mounted so that it may'perform the function here described. More specifically, that function could be described in the following way.
  • the column, or column portion, located at the shortest distance from the press tools is initially subjected to a compression load which is considerably reduced but not completely eliminated in response to the forces tending to deform the yokes and generated upon application of the press force at the tools.
  • the biased reinforcing frame does not have to be oval in shape.
  • a side gap press having a frame structure, comprising a pair of parallel yokes (3, 4) having, each, a support end and a tool receiving end;
  • biasing means (12, 14) to subject the column in a location nearest the tool receiving ends of the yokes to a force which in the inoperative state of the press, subjects said column in said nearest location to a compression force which is greater than the compression force on the column in a location remote from the tool receiving ends of the yokes, said bias means comprising tension means biased under tension and holding together said yokes and column and maintaining the frame column biased under compression also in the operative state of the press, said biasing means forming an outer frame located crosswise relatively to a vertical plane of symmetry through a press frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Presses And Accessory Devices Thereof (AREA)
US00219004A 1971-11-26 1972-01-19 Side gap press and frame structure therefor Expired - Lifetime US3800695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15213/71A SE349257B (enrdf_load_stackoverflow) 1971-11-26 1971-11-26

Publications (1)

Publication Number Publication Date
US3800695A true US3800695A (en) 1974-04-02

Family

ID=20300320

Family Applications (1)

Application Number Title Priority Date Filing Date
US00219004A Expired - Lifetime US3800695A (en) 1971-11-26 1972-01-19 Side gap press and frame structure therefor

Country Status (12)

Country Link
US (1) US3800695A (enrdf_load_stackoverflow)
JP (1) JPS4863372A (enrdf_load_stackoverflow)
AT (1) AT318393B (enrdf_load_stackoverflow)
BE (1) BE784025A (enrdf_load_stackoverflow)
CA (1) CA966366A (enrdf_load_stackoverflow)
DD (1) DD96900A5 (enrdf_load_stackoverflow)
DE (1) DE2223547A1 (enrdf_load_stackoverflow)
FR (1) FR2162816A5 (enrdf_load_stackoverflow)
GB (1) GB1319049A (enrdf_load_stackoverflow)
IT (1) IT960392B (enrdf_load_stackoverflow)
NL (1) NL7206763A (enrdf_load_stackoverflow)
SE (1) SE349257B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884142A (en) * 1973-01-19 1975-05-20 Carbox Ab Machine frame, having a biased wire girdle, and a method for biasing such a girdle
US3911811A (en) * 1973-10-18 1975-10-14 Carbox Ab Machine frame, especially for presses
US6547499B2 (en) * 2001-06-25 2003-04-15 Victor Taichung Machinery Works, Co., Ltd. Prestressing device for a mechanical finishing device
ITRE20090052A1 (it) * 2009-05-27 2010-11-28 Sacmi Pressa e metodo di montaggio per una pressa.
CN106427042A (zh) * 2016-12-05 2017-02-22 重集团大连设计研究院有限公司 一种用于“c”型压机的框架结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7674587B1 (ja) * 2024-12-30 2025-05-09 株式会社ディスコ Ｈｐｈｔ単結晶ダイヤモンド製造装置、ｈｐｈｔ単結晶ダイヤモンド製造方法、ｈｐｈｔ単結晶ダイヤモンド製造プログラム、および記憶装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US586353A (en) * 1897-07-13 Oil-cake former
US1085296A (en) * 1910-03-26 1914-01-27 Hodler Perkins Company Press.
US3064558A (en) * 1955-03-18 1962-11-20 Asea Ab Press stand
US3247783A (en) * 1964-05-21 1966-04-26 Erie Foundry Company Hydraulic press
US3303774A (en) * 1964-05-20 1967-02-14 Shiokawa Seiji Open-sided press

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US586353A (en) * 1897-07-13 Oil-cake former
US1085296A (en) * 1910-03-26 1914-01-27 Hodler Perkins Company Press.
US3064558A (en) * 1955-03-18 1962-11-20 Asea Ab Press stand
US3303774A (en) * 1964-05-20 1967-02-14 Shiokawa Seiji Open-sided press
US3247783A (en) * 1964-05-21 1966-04-26 Erie Foundry Company Hydraulic press

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884142A (en) * 1973-01-19 1975-05-20 Carbox Ab Machine frame, having a biased wire girdle, and a method for biasing such a girdle
US3911811A (en) * 1973-10-18 1975-10-14 Carbox Ab Machine frame, especially for presses
US6547499B2 (en) * 2001-06-25 2003-04-15 Victor Taichung Machinery Works, Co., Ltd. Prestressing device for a mechanical finishing device
ITRE20090052A1 (it) * 2009-05-27 2010-11-28 Sacmi Pressa e metodo di montaggio per una pressa.
CN101898426A (zh) * 2009-05-27 2010-12-01 萨克米伊莫拉机械合作社合作公司 压力机和用于安装压力机的方法
EP2255960A1 (en) * 2009-05-27 2010-12-01 SACMI Cooperativa Meccanici Imola Società Cooperativa Press with a pre-stressed frame and method for mounting said press
RU2555696C2 (ru) * 2009-05-27 2015-07-10 Сакми Кооператива Мекканичи Имола Сосиета' Кооператива Пресс и способ его сборки
CN106427042A (zh) * 2016-12-05 2017-02-22 重集团大连设计研究院有限公司 一种用于“c”型压机的框架结构

Also Published As

Publication number Publication date
SE349257B (enrdf_load_stackoverflow) 1972-09-25
JPS4863372A (enrdf_load_stackoverflow) 1973-09-03
FR2162816A5 (enrdf_load_stackoverflow) 1973-07-20
GB1319049A (en) 1973-05-31
NL7206763A (enrdf_load_stackoverflow) 1973-05-29
AT318393B (de) 1974-10-10
IT960392B (it) 1973-11-20
BE784025A (fr) 1972-09-18
DD96900A5 (enrdf_load_stackoverflow) 1973-04-12
DE2223547A1 (de) 1973-05-30
CA966366A (en) 1975-04-22

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