US3208373A - Closing system for presses - Google Patents

Closing system for presses Download PDF

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Publication number
US3208373A
US3208373A US256688A US25668863A US3208373A US 3208373 A US3208373 A US 3208373A US 256688 A US256688 A US 256688A US 25668863 A US25668863 A US 25668863A US 3208373 A US3208373 A US 3208373A
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United States
Prior art keywords
toggle
platen
press
movable platen
links
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Expired - Lifetime
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US256688A
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English (en)
Inventor
Rene G Bachelier
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A TRIULZI Sas
A TRIULZI S AS
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A TRIULZI S AS
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • B30B1/323—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure using low pressure long stroke opening and closing means, and high pressure short stroke cylinder means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
    • B29C45/681—Mould opening, closing or clamping devices hydro-mechanical using a toggle mechanism as mould clamping device
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18992—Reciprocating to reciprocating

Definitions

  • the present invention relates to presses, and more specifically to presses used for closing molds as used In the manufacture of plastic articles and as used in castmg of metals under pressure.
  • Various press systems are used for such applications and one difiiculty encountered in presses for such applications is that the press has to have a relatively great stroke for properly opening the mold to a considerable extent and that the press has to have a great closing pressure for maintaining the mold in closed condition under great pressure.
  • the press mainly comprises support means, a stationary press platen fixed to the support means, a movable press platen mounted on said support means for movement toward and away from the stationary press platen, stationary abutment means fixed to the support means above the movable platen, a toggle mechanism comprising a pair of toggle links pivotally connected at one of the ends thereof to each other and one of the toggle links pivotally connected at the other end thereof to the movable platen and the other toggle link having a free end adapted to abut against the aforementioned abutment means, the toggle links being tiltable between an inactive position inclined with respect to each other and an active position axially aligned with each other.
  • the press includes further first moving means mounted on the support means and connected to the movable platen for moving the latter from a first position considerably spaced from the stationary platen to a second position in close vicinity of the stationary platen and back to the first position, resilient means connected to the toggle links and biased to yieldably maintain the toggle links in the inactive position thereof, and second moving means carried by the movable platen and operatively connected to the toggle links for moving, after the movable platen has been moved by the first moving means to the second position, the free end of the second toggle link into engagement with the abutment means and subsequently the toggle links to the active position so that the toggle mechanism presses the movable platen with a toggle action against the stationary platen.
  • the second moving means are independently operable from the first moving means.
  • the aforementioned support means preferably comprise a pair of uprights and a transverse plate fixedly mounted on the upper ends of the uprights.
  • the stationary platen forms the base of the press and the uprights are fixed to the base projecting upwardly therefrom
  • the movable platen is located between the base and the transverse plate and guided for movement toward and away from the base on the uprights.
  • the first moving means are preferably mounted on the transverse plate and include a cylinder carried by the transverse plate, a piston movable in the cylinder, and a piston rod connected at one end thereof to the piston and at the other end to the movable platen.
  • the second moving means preferably include a second cylinder axially aligned with the cylinder of the first moving means, an elongated piston movable in the second cylinder and having a reduced diameter portion upwardly extending beyond the second cylinder and being formed with a central bore therethrough through which the piston rod of the first moving means slidably extends, and link means connecting the reduced diameter portion of the elongated piston to the toggle links of the toggle mechanism.
  • FIG. 1 is a sectioned side view of the press according to the present invention and showing the press in its fully open position;
  • FIG. 2 is a sectioned side view of the press shown in FIG. 1 and showing the press in the nearly closed position;
  • FIG. 3 is a partial side view of the press shown in FIG. 1 and showing the latter in a further position during its closing movement;
  • FIG. 4 is a partial side view of the press and showing the same in its fully closed position.
  • the press of the present invention comprises a base forming a stationary platen 5 and two uprights 2 projecting spaced from and parallel to each other upwardly from the base 5.
  • the uprights 2 extend with small diameter portions thereof through corresponding bores in the base 5 and are secured by nut threadingly engaging threaded lower ends of the uprights 2 to the base.
  • Each of the uprights 2 has an upper portion 2 provided with a screw thread, and these upper portions 22 extend through corresponding bores of a transverse plate 1.
  • a movable platen 6 is located between the transverse plate 1 and the stationary platen 5 and the uprights 2 extend respectively through bores of the movable platen 6 so that the latter is guided On the uprights 2 for movement toward and away from the stationary platen 5.
  • First moving means are provided for moving the movable platen 6 toward and away from the stationary platen and these first moving means include a cylinder 7 extendmg parallel to the uprights 2 through a central bore of the transverse plate 1 and being fixedly connected thereto, a piston 8 slidably guided in the cylinder 7, and a piston rod 9 fixedly connected at the upper end thereof to the piston 8 and fixedly connected at the lower end thereof to the movable platen 6.
  • the press includes further two toggle mechanisms, each comprising a pair of toggle links 16 and 17 each pair pivotally connected to each other at 15 and the lower of each toggle link, that is, the link 16, also pivotally connected at 18 to a lug projecting upwardly from the upper face of the movable platen 6.
  • the upper one 17 of each pair of toggle links projects, in
  • Each toggle mechanism comprises further resilient means, preferably in the form of coiled tension springs 21 connected at opposite ends to the toggle links 16 and 17 adjacent to the ends thereof which are pivotally connected at 1.5 to each other and the spring means 21 are biased tending to keep each pair of toggle links 116 and 17 in a position inclined to each other, as shown in FIG. 1.
  • the press includes further second moving means preferably constituted by a cylinder illtl fixedly mounted in a central opening of the movable platen 6 coaxial with the axis of the cylinder 7 of the first moving means.
  • An elongated piston 11 is slidably guided in the cylinder It and piston ill extends with a reduced diameter portion 12 upwardly beyond the cylinder lit).
  • the piston 11 and the reduced diameter portion 12 are formed with an axially extending bore therethrough through which the piston rod 9 of the first moving means slidably extends.
  • a transverse member 13 is integrally connected with the upper end of the reduced diameter portion 12 of the piston 11 and a pair of additional links M are respectively pivotally connected at the lower ends thereof to opposite ends of the transverse member 13 and the upper ends of the links 14 are pivotally connected at 15 to the pairs of toggle mechanisms, respectively.
  • the cylinder '7 is provided at its upper and lower ends with openings 22 and 23, respectively, through which pressure fiuid may be fed into the cylinder 7 and discharged therefrom by means of tubes, not shown in the drawings, which are to be connected in a known manner to a source of pressure fluid likewise not shown in the drawings.
  • Corresponding passages 24', and 25 communicate with the upper and lower ends of the cylinder It respectively, for feeding and discharging pressure fluid into and from the latter.
  • a mold half 3 is fixedly mounted on the bottom face of the movable platen 6 and a corresponding mold half 3 is mounted on the upper face of the stationary platen 5.
  • FIG. 1 shows the press in the fully open position and in this position, the piston 8 f the first moving means is adjacent the upper end of the cylinder 7, whereas the piston 11 of the second moving means is adjacent to the bottom of the cylinder to.
  • the toggle links 17 extend upwardly through the openings 2t) in the transverse plate 1 and the toggle links 16 and 17 are in an inactive position inclined to each other as shown in FIG. 1.
  • the movable platen 6 and the mold half carried thereby is upwardly spaced to a considerable extent from the stationary platen and the mold half 3' thereon.
  • pressure fluid is fed first through the passage 24 in the cylinder lit), while the passage 25' is opened to permit pressure fluid contained in the cylinder 10 beneath the piston 11 to be discharged therefrom so that the piston ill will move downwardly in the cylinder MD from the position shown in FIG. 4 to the position shown in FIG. 1.
  • pressure fluid is fed through the passage 23 in the cylinder '7 while the passage 22 is opened to allow pressure fluid to be discharged therefrom so that the piston 8 will be moved from its lower position, as shown in FIGS. 2-4, to its upper position, as shown in FIG. 1.
  • Movement of the piston 11 to its lower position will first disengage the pressure shoes 19 from the abutment faces 26 and subsequently swing the toggle links 17 in alignment with the bores 20 in the transverse plate ll, and movement of the piston 8 from its lower to its upper position will cause movement of the upper toggle links 17 through the bores Ztl to the position as shown in FIG. 1.
  • the closing pressure produced by the press may be ad usted by adjusting the position of the transverse plate 1 on the uprights 2 with respect to the stationary platen 5. Since the upper ends of the shoes 19 engage, during closmg movement of the mold, the abutment faces 26 before closing pressure is applied, and since during openmg of the mold the upper ends of the pressure shoes 19 are disengaged from the respective abutment faces 26 before the shoes 19 are moved in transverse direction relat1ve to the abutment faces, these movements will occur without any sliding friction and wear on the corresponding components is thereby considerably reduced.
  • a press comprising, in combination, support means; a stationary press platen fixed to said support means; a movable press platen mounted on said support means for movement toward and away from said stationary platen; a stationary abutment means fixed to said support means above said movable platen; toggle means comprising a pair of toggle links pivotally connected at one of the ends thereof to each other, one of said toggle links being pivotally connected at the other end thereof to said movable platen and the other toggle link having a free end adapted to abut against said abutment means, said toggle links being tiltable between an inactive position inclined with respect to each other and an active position axially aligned with each other, said toggle means constructed so that said links normally stay in said inactive position; first moving means mounted on said support means and connected to said movable platen for moving the latter from a first position considerably spaced from said stationary platen to a second position in close vicinity of said stationary platen and back to said first position; and second moving means carried by said movable platen and operatively connected
  • a press comprising, in combination, support means; a stationary press platen fixed to said support means; a movable press platen mounted on said support means for movement toward and away from said stationary press platen; stationary abutment means fixed to said support means above said movable platen; a toggle mechanism comprising a pair of toggle links pivotally connected at one of the ends thereof to each other, one of said toggle links being pivotally connected at the other end thereof to said movable platen and the other toggle link having a free end adapted to abut against said abutment means, said toggle links being tiltable between an inactive position inclined with respect to each other and an active position axially aligned with each other; first moving means mounted on said support means and connected to said movable platen for moving the latter from a first position considerably spaced from said stationary platen to a second position in close vicinity of said stationary platen and back to said first position; resilient means connected to said toggle links and biased to yieldably maintain said toggle links in said inactive position; and second moving means carried by said movable
  • a press comprising, in combination, support means; a stationary press platen fixed to said support means; a movable platen mounted on said support means for movement toward and away from said stationary press platen; stationary abutment means fixed to said support means above said movable platen; a toggle mechanism comprising a pair of toggle links pivotally connected at one of the ends thereof to each other, one of said toggle links being pivotally connected at the other end thereof to said movable platen and the other toggle link having a free end adapted to abut against said abutment means,
  • toggle links being tiltable between an inactive position inclined with respect to each other and an active position axially aligned with each other; first moving means mounted on said support means and connected to said movable platen for moving the latter from a first position considerably spaced from said stationary platen to a second position in close vicinity of said stationary platen and back to said first position; resilient means connected to said toggle links and biased to yieldably maintain said toggle links in said inactive position; and second moving means carried by said movable platen and operatively connected to said toggle links for moving, after said movable platen has been moved by said first moving means to said second position, said free end of the second toggle link into engagement with said abutment means and subsequently said toggle links to said active position so that said toggle mechanism presses said movable platen with a toggle action against said stationary platen and for subsequently moving said free end of said other toggle link out of engagement with said abutment means to permit said first moving means to move said movable platen back to said first position, said second moving means being independent of said first moving means
  • a press comprising, in combination, support means; a stationary press platen fixed to said support means; a movable press platen mounted on said support means for movement toward and away from said stationary press platen; stationary abutment means fixed to said support means above said movable platen; a pair of toggle mechanisms each comprising a pair of toggle links pivotally connected at one of the ends thereof to each other, one of said toggle links in each pair of said toggle links being pivotally connected at the other end thereof to said movable platen and the other toggle link having a free end adapted to abut against said abutment means, said toggle links of each toggle mechanism being tiltable between an inactive position inclined with respect to each other and an active position axially aligned with each other; first moving means mounted on said support means and connecteed to said movable platen for moving the latter from a first position considerably spaced from said stationary platen to a second position in closed vicinity of said stationary platen and back to said first position; resilient means connected to said toggle links of each toggle mechanism and biased to yieldably maintain
  • a press comprising, in combination, support means; a stationary press plat enfixed to said support means; a movable press platen mounted on said support means for movement toward and away from said stationary press platen; stationary abutment means fixed to said support means above said movable platen; a pair of toggle mechanisms each comprising a pair of toggle links pivotally connected at one of the ends thereof to each other, one of said toggle links in each pair of said toggle links being pivotally connected at the other end thereof to said movable platen and the other toggle link having a free end adapted to abut against said abutment means, said toggle links of each toggle mechanism being tiltable between an inactive position inclined with respect to each other and an active position axially aligned with each other; first moving means mounted on said support means and connected to said movable platen for moving the latter from a first position considerably spaced from said stationary platen to a second position in close vicinity of said stationary platen and back to said first position, said first moving means including a cylinder carried by said support means, a
  • a press comprising, in combination, a base forming a stationary platen; a pair of uprights fixed to said base projecting upwardly therefrom; a transverse plate fixedly mounted on the upper ends of said uprights, said plate being formed with a pair of spaced apertures therethrough extending in direction of said uprights and said plate being formed laterally of said apertures with a pair of abutment means facing said stationary platen; a movable platen between said plate and said stationary platen and being guided on said uprights for movement from a rest position adjacent said transverse plate toward said stationary platen and back to said rest position; a pair of toggle mechanisms each comprising a pair of toggle links pivotally connected at one of the ends thereof to each other, one of said toggle links in each toggle mechanism being pivotally connected at the other end thereof to said movable platen and the other toggle link in each toggle mechanism extending, when said movable toggle is in said rest position, through one of the apertures and each having a free end adapted to abut against one of said abutment means
  • a press comprising, in combination, a base forming a stationary platen; a pair of uprights fixed to said base projecting upwardly therefrom; a transverse plate fixedly mounted on the upper ends of said uprights, said plate being formed with a pair of spaced apertures therethrough extending in direction of said uprights and said plate being formed laterally of said apertures with a pair of abutment means facing said stationary platen; a movable platen between said plate and said stationary platen and being guided on said uprights for movement from a rest position adjacent said transverse plate toward said stationary platen and back to said rest position; a pair of toggle mechanisms, each comprising a pair of toggle links pivotally connected at one of the ends thereof to each other, one of said toggle links in each toggle mechanism being pivotally connected at the other end thereof to said movable platen and the other toggle link in each toggle mechanism extending, when said movable toggle is in said rest position, through one of the apertures and each having a free end adapted to abut against one of said abutment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Manufacturing & Machinery (AREA)
  • Press Drives And Press Lines (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Basic Packing Technique (AREA)
US256688A 1962-02-12 1963-02-06 Closing system for presses Expired - Lifetime US3208373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR887682A FR1322208A (fr) 1962-02-12 1962-02-12 Système de fermeture de presse

Publications (1)

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US3208373A true US3208373A (en) 1965-09-28

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US256688A Expired - Lifetime US3208373A (en) 1962-02-12 1963-02-06 Closing system for presses

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US (1) US3208373A (es)
CH (1) CH383777A (es)
ES (1) ES284993A1 (es)
FR (1) FR1322208A (es)
GB (1) GB1030433A (es)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339428A (en) * 1965-01-25 1967-09-05 Oak Electro Netics Corp Push button switch
US3632272A (en) * 1969-04-29 1972-01-04 Nrm Corp Thermoforming apparatus
FR2443922A1 (fr) * 1978-12-11 1980-07-11 Imi Ind Macc Idrauliche Dispositif de fermeture et de blocage a genouillere pour presses a mouler
US4243369A (en) * 1978-12-05 1981-01-06 Micro & Precision Mouldings (Cheltenham Limited) Mould closing, clamping and opening means
US4354819A (en) * 1980-05-30 1982-10-19 Spuhl Ag Multi-pivotable mold carrier clamping apparatus
US4563143A (en) * 1983-04-19 1986-01-07 Kb Cold Isostatic Press Systems Cips Isostatic press
US4876878A (en) * 1987-03-24 1989-10-31 Werner Leinhaas Press with hydro-mechanical drive
US4954068A (en) * 1988-01-30 1990-09-04 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Hydraulic press
US5176923A (en) * 1989-07-24 1993-01-05 Ito Kogyo Kabushiki Kaisha Mold-pressing apparatus incorporating electric servo motor and linking mechanism
WO2005021253A2 (de) * 2003-08-25 2005-03-10 Christian Wieber Hydraulische presse und tiefzieh-presse
EP1563981A1 (en) * 2004-02-17 2005-08-17 Fanuc Ltd Mold clamping mechanism of injection molding machine
US20140304959A1 (en) * 2011-12-31 2014-10-16 The Gates Corporation Crimper System
CN109702029A (zh) * 2019-02-27 2019-05-03 河南科技大学 轮毂成形装置及其增压机构
CN109702128A (zh) * 2019-02-27 2019-05-03 河南科技大学 一种增压装置及其增压机构
CN109702129A (zh) * 2019-02-27 2019-05-03 河南科技大学 液态模锻装置及其增压机构
CN109746276A (zh) * 2019-02-27 2019-05-14 河南科技大学 一种用于轮毂成形的液压机
CN109848395A (zh) * 2019-02-27 2019-06-07 河南科技大学 间接液态模锻装置及其锁模机构
US10328478B2 (en) * 2014-07-28 2019-06-25 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Punching a workpiece
IT202200003149A1 (it) * 2022-02-21 2023-08-21 Step Di Tidei Agostino Pressa a ginocchiera per lo stampaggio di materiali plastici.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1217320B (it) * 1987-06-30 1990-03-22 Fir Srl Apparato per la imbutitura della lamiera
IT1248499B (it) * 1991-06-19 1995-01-19 Vipa S R L Studio Progettazion Apparecchiatura pressante particolarmente per elementi lastriformi quali pelli, tessuti,cuoio e simili.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2363107A (en) * 1941-07-19 1944-11-21 Jesse B Hawley Expandible plastic mold
US2371547A (en) * 1943-02-01 1945-03-13 Reed Prentice Corp Pressure exerting mechanism
US2416348A (en) * 1943-11-19 1947-02-25 William S Renier Plastic molding machine
US2492259A (en) * 1946-10-01 1949-12-27 Rupert Diecasting Company Die-casting machine
US2738748A (en) * 1952-01-29 1956-03-20 May Pressenbau G M B H Fa Toggle lever operating arrangement for a press
US2792592A (en) * 1954-11-08 1957-05-21 Guy P Harvey & Son Corp Clamping mechanism for molding machine
GB786248A (en) * 1955-03-03 1957-11-13 Buehler Ag Geb Improvements in or relating to die casting, injection moulding and other pressure machines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2363107A (en) * 1941-07-19 1944-11-21 Jesse B Hawley Expandible plastic mold
US2371547A (en) * 1943-02-01 1945-03-13 Reed Prentice Corp Pressure exerting mechanism
US2416348A (en) * 1943-11-19 1947-02-25 William S Renier Plastic molding machine
US2492259A (en) * 1946-10-01 1949-12-27 Rupert Diecasting Company Die-casting machine
US2738748A (en) * 1952-01-29 1956-03-20 May Pressenbau G M B H Fa Toggle lever operating arrangement for a press
US2792592A (en) * 1954-11-08 1957-05-21 Guy P Harvey & Son Corp Clamping mechanism for molding machine
GB786248A (en) * 1955-03-03 1957-11-13 Buehler Ag Geb Improvements in or relating to die casting, injection moulding and other pressure machines

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339428A (en) * 1965-01-25 1967-09-05 Oak Electro Netics Corp Push button switch
US3632272A (en) * 1969-04-29 1972-01-04 Nrm Corp Thermoforming apparatus
US4243369A (en) * 1978-12-05 1981-01-06 Micro & Precision Mouldings (Cheltenham Limited) Mould closing, clamping and opening means
FR2443922A1 (fr) * 1978-12-11 1980-07-11 Imi Ind Macc Idrauliche Dispositif de fermeture et de blocage a genouillere pour presses a mouler
US4276013A (en) * 1978-12-11 1981-06-30 I.M.I. Industria Macchine Idrauliche S.P.A. Toggle action closing and locking devices for presses
US4354819A (en) * 1980-05-30 1982-10-19 Spuhl Ag Multi-pivotable mold carrier clamping apparatus
US4563143A (en) * 1983-04-19 1986-01-07 Kb Cold Isostatic Press Systems Cips Isostatic press
AU580255B2 (en) * 1983-04-19 1989-01-12 Kb Cold Isostatic Press Systems Cips Isostatic press
US4876878A (en) * 1987-03-24 1989-10-31 Werner Leinhaas Press with hydro-mechanical drive
US4954068A (en) * 1988-01-30 1990-09-04 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Hydraulic press
US4954067A (en) * 1988-01-30 1990-09-04 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Hydraulic press
US5176923A (en) * 1989-07-24 1993-01-05 Ito Kogyo Kabushiki Kaisha Mold-pressing apparatus incorporating electric servo motor and linking mechanism
WO2005021253A2 (de) * 2003-08-25 2005-03-10 Christian Wieber Hydraulische presse und tiefzieh-presse
WO2005021253A3 (de) * 2003-08-25 2005-06-30 Christian Wieber Hydraulische presse und tiefzieh-presse
EP1563981A1 (en) * 2004-02-17 2005-08-17 Fanuc Ltd Mold clamping mechanism of injection molding machine
US20050181091A1 (en) * 2004-02-17 2005-08-18 Fanuc Ltd Mold clamping mechanism of injection molding machine
US7182590B2 (en) 2004-02-17 2007-02-27 Fanuc Ltd Mold clamping mechanism of injection molding machine
CN100406230C (zh) * 2004-02-17 2008-07-30 发那科株式会社 注模机的模具夹紧机构
US20140304959A1 (en) * 2011-12-31 2014-10-16 The Gates Corporation Crimper System
US10328478B2 (en) * 2014-07-28 2019-06-25 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Punching a workpiece
CN109702029A (zh) * 2019-02-27 2019-05-03 河南科技大学 轮毂成形装置及其增压机构
CN109702129A (zh) * 2019-02-27 2019-05-03 河南科技大学 液态模锻装置及其增压机构
CN109746276A (zh) * 2019-02-27 2019-05-14 河南科技大学 一种用于轮毂成形的液压机
CN109848395A (zh) * 2019-02-27 2019-06-07 河南科技大学 间接液态模锻装置及其锁模机构
CN109702128A (zh) * 2019-02-27 2019-05-03 河南科技大学 一种增压装置及其增压机构
CN109702129B (zh) * 2019-02-27 2020-03-13 河南科技大学 液态模锻装置及其增压机构
IT202200003149A1 (it) * 2022-02-21 2023-08-21 Step Di Tidei Agostino Pressa a ginocchiera per lo stampaggio di materiali plastici.

Also Published As

Publication number Publication date
DE1479756B2 (de) 1972-10-12
FR1322208A (fr) 1963-03-29
DE1479756A1 (de) 1969-07-31
ES284993A1 (es) 1963-07-16
GB1030433A (en) 1966-05-25
CH383777A (it) 1964-10-31

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