EP0256570A1 - Pressenrahmen - Google Patents

Pressenrahmen Download PDF

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Publication number
EP0256570A1
EP0256570A1 EP87201240A EP87201240A EP0256570A1 EP 0256570 A1 EP0256570 A1 EP 0256570A1 EP 87201240 A EP87201240 A EP 87201240A EP 87201240 A EP87201240 A EP 87201240A EP 0256570 A1 EP0256570 A1 EP 0256570A1
Authority
EP
European Patent Office
Prior art keywords
walls
wings
boards
teeth
interspaced
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
Application number
EP87201240A
Other languages
English (en)
French (fr)
Other versions
EP0256570B1 (de
Inventor
Roberto Nassetti
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.)
NASSETTI ETTORE SpA
Original Assignee
NASSETTI ETTORE SpA
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 NASSETTI ETTORE SpA filed Critical NASSETTI ETTORE SpA
Priority to AT87201240T priority Critical patent/ATE59161T1/de
Publication of EP0256570A1 publication Critical patent/EP0256570A1/de
Application granted granted Critical
Publication of EP0256570B1 publication Critical patent/EP0256570B1/de
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
    • B30B15/048—Laminated frame structures
    • 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

Definitions

  • the present invention relates to an improved mounting particularly but not exclusively suitable for ceramic molding products as tiles and the like.
  • Press mountings of a known type are in general structurally formed by a pair of parallel walls, respectively front and back wall, interconnected at a suitable distance one from the other, as to locate a space of containment, between them, a space for containing the various press gears including a work compartment to whom to enter through lined up large openings obtained inside of the very walls.
  • connection between said front and back walls is obtained by means of frames composed of elements welded between them and the very walls.
  • a completely rigid structure is so located that is to say that it is by no means subject to strain, suffering from the serious drawback of being subject to breakings, especially when asymmetrical loadings are driven to it, due to an anomalous way of working of the press, what may,even frequently happen.
  • breakings are primed mostly in correspondance to the welding areas.
  • the purpose of the present invention is that of obviating to the above mentioned drawback realizing a press mounting not completely rigid capable of buckling when subjected to asymmetric anomalous loads avoiding in such a way that said loads discharge only in a predetermined zone of the mounting with the result of priming dangerous breakings.
  • a press mounting particularly for molding ceramic materials, of the type including a pair of hollow (11,12) walls respectively front and back wall, that are interspaced and interconnected parallelely by means of a pair of boards (13,14), respectively lower and upper board, characterized by that said walls (11,12) and said boards (13,14) are rigidly assembled along a transversal horizontal axis (X), while being free of buckling along the other two vertical axes (Y and Z).
  • said boards (13,14) are equal to each other and among them and show each a structure in general U shaped with wings (16) that protrude from a base (17) protruding beyond said wings (16) with teeth (18) that lean upon the respective parallel horizontal planes (19) of the walls (11,12) that are also equal to each other and are kept interspaced by said wings (16).
  • the subject mounting is complessively indicated by 1O and it is structurally formed by four main pieces that, according to the invention, are rigidly assembled along the axis X, while free to buckle along the other two axes Y and Z.
  • said four main pieces include a pair of walls 11,12 respectively front and back wall, and a pair of boards 13,14, lower and upper board respectively.
  • said walls 11 and 12 are equal to each other and show each a generally rectangular shape having a central opening 15 to enter into the pressing zone.
  • the tables 13,14 are also equal to each other and show each a generally "U" shaped structure with wings 16 extending from a base 17 protruding beyond said wings 16 with teeth 18.
  • the walls (11 and 12) are leaning and fixed on a multi-layer base frame indicated at 31.
  • ring-press composed by 4 main pieces (11,12,13 and 14) rigidly assembled on a axis (X) and free to strain along the other two axes (Y-Z) at disposal.
  • the assembly results transversally rigid along the axis "X"; the rigidity is ensured by the four boltings obtained by means of the threaded sleeves 22 and the relevant lock nuts 25.
  • the footsteps bearings 26,27, mounted on the four boltings axis allow the sliding of the pieces 13,14 relative to the pieces 11,12 along the axis "Y" up to a maximum clearance "g" existing among the tube sleeves 22 and the holes 23,24.
  • the pieces 13 and 14 transmit the compression load to the pieces 11,12 through the teeth 18 by the interposed sheet 2O.
  • Said sheet 2O has the function of absorbing in the resilient phase the buckling difference under the loading of the pieces 13 and 14 relative to the pieces 11,12.
  • Said loading is normally calibrated between 4 and 8 times the statical loadings (weights) of the pieces composing the structure.
  • the invention mounting shows the following main advantages
  • the four main pieces composing it can be obtained by different technological procedures in view of the strains that they have to bear; in fact in the pieces 13 and 14 the pressing strength generates stretchings on the three axes (double deflection or plate-effect).
  • the fused steel structure by which these pieces are generated does not have oriented fibres but it is spatially homogeneous, thus resulting more suitable for absorbing the above mentioned stretchings.
  • the pressing strain generates stretchings according to the main axes "Y" and "Z", being the pieces 11,12 obtained by rolled steel and thus having oriented fibres.
  • the four main pieces shape composing the structure is very simple and thus there are no stretchings in the raw semi-­finished generated.
  • the assembling ensures the perfect machine-geometry even under the pressing load.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Socks And Pantyhose (AREA)
  • Knitting Of Fabric (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Connection Of Plates (AREA)
EP87201240A 1986-07-16 1987-06-29 Pressenrahmen Expired - Lifetime EP0256570B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87201240T ATE59161T1 (de) 1986-07-16 1987-06-29 Pressenrahmen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2115186 1986-07-16
IT21151/86A IT1196506B (it) 1986-07-16 1986-07-16 Incastellatura perfezionata per presa,in particolare per lo stampaggio di materiali ceramici

Publications (2)

Publication Number Publication Date
EP0256570A1 true EP0256570A1 (de) 1988-02-24
EP0256570B1 EP0256570B1 (de) 1990-12-19

Family

ID=11177499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87201240A Expired - Lifetime EP0256570B1 (de) 1986-07-16 1987-06-29 Pressenrahmen

Country Status (6)

Country Link
EP (1) EP0256570B1 (de)
AT (1) ATE59161T1 (de)
BR (1) BR8703701A (de)
DE (1) DE3766773D1 (de)
ES (1) ES2019370B3 (de)
IT (1) IT1196506B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4444946C1 (de) * 1994-12-16 1995-08-17 Netzsch Erich Holding Rahmenförmiges Pressengestell
GB2371515A (en) * 2000-12-22 2002-07-31 Kvm Industrimaskiner As Main frame for a concrete block moulding apparatus
EP1306201A3 (de) * 2001-10-24 2003-11-12 Aida Engineering Co., Ltd. Presse
IT201800005716A1 (it) * 2018-05-25 2019-11-25 Macchina per la formatura di manufatti ceramici
US11701853B1 (en) 2019-06-21 2023-07-18 Pmg Cos Az, Llc Rosin press with interlocking frame

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103862703B (zh) * 2012-12-17 2015-10-14 昆山永年先进制造技术有限公司 缸-梁集成系统
CN107297537B (zh) * 2017-06-21 2018-11-27 中钢集团西安重机有限公司 一种加强型冷剪机机架

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1240823A (en) * 1967-07-26 1971-07-28 Vickers Ltd Improvements in frames for presses
DE2449256A1 (de) * 1973-10-18 1975-04-24 Carbox Ab Maschinenrahmen
FR2254425A1 (en) * 1973-12-13 1975-07-11 Plastiremo Moulding press with a modular fabricated frame - capable of rearrangement to suit various mould and clamp tool sizes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1240823A (en) * 1967-07-26 1971-07-28 Vickers Ltd Improvements in frames for presses
DE2449256A1 (de) * 1973-10-18 1975-04-24 Carbox Ab Maschinenrahmen
FR2254425A1 (en) * 1973-12-13 1975-07-11 Plastiremo Moulding press with a modular fabricated frame - capable of rearrangement to suit various mould and clamp tool sizes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, M section, vol. 7, no. 110, May 13, 1983 THE PATENT OFFICE JAPANESE GOVERNMENT page 2 M 214 * JP - A - 56-128 475 ( KOOTAKI ) * *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4444946C1 (de) * 1994-12-16 1995-08-17 Netzsch Erich Holding Rahmenförmiges Pressengestell
GB2371515A (en) * 2000-12-22 2002-07-31 Kvm Industrimaskiner As Main frame for a concrete block moulding apparatus
GB2371515B (en) * 2000-12-22 2004-06-30 Kvm Industrimaskiner As Main frame for a concrete block moulding apparatus
EP1306201A3 (de) * 2001-10-24 2003-11-12 Aida Engineering Co., Ltd. Presse
US6871587B2 (en) 2001-10-24 2005-03-29 Aida Engineering Co., Ltd. Machine press
IT201800005716A1 (it) * 2018-05-25 2019-11-25 Macchina per la formatura di manufatti ceramici
WO2019224759A1 (en) * 2018-05-25 2019-11-28 Siti - B&T Group S.P.A. Machine for forming ceramic articles
US11701853B1 (en) 2019-06-21 2023-07-18 Pmg Cos Az, Llc Rosin press with interlocking frame

Also Published As

Publication number Publication date
BR8703701A (pt) 1988-03-29
DE3766773D1 (de) 1991-01-31
ATE59161T1 (de) 1991-01-15
ES2019370B3 (es) 1991-06-16
IT1196506B (it) 1988-11-16
IT8621151A0 (it) 1986-07-16
EP0256570B1 (de) 1990-12-19

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