EP0147652A2 - Presse hydraulique pour comprimer des nattes en plastique renforcées de fibres de verre - Google Patents

Presse hydraulique pour comprimer des nattes en plastique renforcées de fibres de verre Download PDF

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Publication number
EP0147652A2
EP0147652A2 EP84114412A EP84114412A EP0147652A2 EP 0147652 A2 EP0147652 A2 EP 0147652A2 EP 84114412 A EP84114412 A EP 84114412A EP 84114412 A EP84114412 A EP 84114412A EP 0147652 A2 EP0147652 A2 EP 0147652A2
Authority
EP
European Patent Office
Prior art keywords
press
crossmember
displaceable
clamping
stroke
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
EP84114412A
Other languages
German (de)
English (en)
Other versions
EP0147652A3 (en
EP0147652B1 (fr
Inventor
Klaus Schmidts
Dieter Dipl.-Ing. Therolf
Ulrich Dr.-Ing. Weber
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.)
Hoesch AG
Original Assignee
Hoesch AG
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 Hoesch AG filed Critical Hoesch AG
Priority to AT84114412T priority Critical patent/ATE42238T1/de
Publication of EP0147652A2 publication Critical patent/EP0147652A2/fr
Publication of EP0147652A3 publication Critical patent/EP0147652A3/de
Application granted granted Critical
Publication of EP0147652B1 publication Critical patent/EP0147652B1/fr
Expired legal-status Critical Current

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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

Definitions

  • the innovation relates to a hydraulic press for pressing plastic mats reinforced with glass fibers into molded parts, with a fixed and a displaceable press crossmember and a press drive in which at least one adjusting cylinder with a stroke length corresponding to the working stroke of the press and at least two is used to drive the displaceable press crossmember short-stroke press cylinders that can be coupled to the displaceable press crossmember are arranged, each press cylinder being able to be coupled to the displaceable press crossmember via a coupling.
  • each press cylinder is used in each of the two presses, each of which can be coupled to the displaceable press crossmember via a form-fitting coupling.
  • All form-locking couplings of the first press each contain a threaded rod, all of the second one a rod with an interrupted multi-spline profile.
  • Such form-locking couplings allow the coupling of the press cylinder to the displaceable press crossmember in each division plane of the thread or the interrupted multi-spline profile.
  • the distance between two adjacent parting planes of a single-start thread corresponds to the thread pitch.
  • the distance between two adjacent division levels is the measure of interruption to interruption.
  • the loss of the press stroke in the entire working stroke area of each press is on average half the distance between two adjacent dividing planes.
  • the innovation is based on the task of designing a press of the type mentioned in such a way that the stroke of the press cylinder can be fully used as a press stroke in the entire working stroke area of the press.
  • this object is achieved in that a coupling rod, at least one fixed: and at least one press-on clamping jaw are arranged for coupling each press cylinder to the displaceable press crossmember.
  • a plurality of clamping cylinders are arranged one above the other between two press-on clamping jaws of two coupling rods.
  • the clamping cylinders are each designed with a single-acting piston.
  • Each pressable clamping jaw is movably arranged transversely to the direction of the press stroke.
  • each coupling rod is provided with at least one longitudinal slot, with at least one clamping plate being assigned to each longitudinal slot.
  • Each clamping plate is movably arranged transversely to the direction of the press stroke.
  • a hydraulic press 1 contains a press frame 2 with a fixed press crossmember 3, two side parts 4, 5 and two crossbars 6, 7. Screws 8, 9 connect the side parts 4, 5 with the fixed press crossmember 3 and the crossbars 6, 7.
  • the two side parts 4, 5 each have two vertical guides 10, 11, 12, 13 for guiding a displaceable press crossmember 14.
  • an adjusting cylinder 15 with a stroke length 17 corresponding to the working stroke 16 of the press 1 and four press cylinders 18, 19, 20, 21 short strokes 22 which can be coupled to the displaceable press crossmember 14 are used.
  • the adjusting cylinder 15 is articulated with its upper end 23 to a support 24 resting on the crossbars 6, 7. Its lower end 25 is articulated to the displaceable press crossmember 14.
  • the four press cylinders 18, 19, 20, 21 are arranged symmetrically to the press centers 26, 27.
  • Four joints 28, 29, 30, 31 establish the connection between the press cylinders 18, 19, 20, 21 and the fixed press crossmember 3.
  • Each press cylinder 18, 19, 20, 21 contains a piston rod 32, 33, 34, 35, which is connected via a connecting sleeve 36, 37, 38, 39 to a coupling rod 40, 41, 42, 43.
  • Each coupling rod 40, 41, 42, 43 can be coupled to the displaceable press crossmember 14 with a fixed clamping jaw 44, 45, 46, 47 and a pressing clamping jaw 48, 49, 50, 51.
  • the pressable clamping jaws 48, 49, 50, 51 are arranged in the displaceable press crossmember 14 such that they can be moved transversely to the pressing stroke direction 52.
  • Two press-on jaws 48, 49; 50, 51 stand with eight clamping cylinders 53, 54, 55, 56 arranged one above the other, 57, 58, 59, 60; 61, 62, 63, 64, 65, 66, 67, 68 in operative connection.
  • each clamping cylinder 53 to 68 has a single-acting piston 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84.
  • All clamping cylinders 53 to 68 are simultaneously supplied with pressure oil by a hydraulic unit 87.
  • the hydraulic unit 87 essentially consists of a motor 88, a clutch 89, two pumps 90, 91, an oil tank 92, six valves 93, 94, 95, 96, 97, 98, a pressure gauge 99 and an oil filter 100.
  • the clamping cylinders 53 to 68 are not acted upon by pressure oil.
  • the clamping movement of the clamping cylinders 53 to 68 is triggered by simultaneously switching the two valves 95, 96 and by switching on the motor 88.
  • a hydraulic press 101 contains a press frame 102 with a fixed press crossmember 103, two side parts 104, 105 and two crossbars 106, 107. Screws 108, 109 connect the side parts 104, 105 to the fixed press crossmember 103 and the crossbars 106, 107.
  • the two side parts 104, 105 each have two vertical guides 110, 111, 112, 113 for guiding a displaceable press crossmember 114.
  • an adjusting cylinder 115 with a stroke length 117 corresponding to the working stroke 116 of the press 101 and four press cylinders 118, 119, 120, 121 short strokes 122 which can be coupled to the displaceable press crossmember 114 are used.
  • the adjusting cylinder 115 is articulated with its upper end 123 to a support 124 resting on the crossbars 106, 107. Its lower end 125 is articulated to the displaceable press crossmember 114.
  • the four press cylinders 118, 119, 120, 121 are arranged symmetrically to the press centers 126, 127.
  • Four joints 128, 129, 130, 131 establish the connection between the press cylinders 118, 119, 120, 121 and the fixed press crossmember 103.
  • Each press cylinder 118, 119, 120, 121 contains a piston rod 132, 133, 134, 135, which is connected via a connecting sleeve 136, 137, 138, 139 to a coupling rod 140, 141, 142, 143.
  • Each coupling rod 140, 141, 142, 143 can be coupled to the displaceable press crossbar ll4 with a fixed clamping jaw 144, 145, 146, 147, a press-on clamping jaw 148, 149, 150, 151 and three clamping plates 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163.
  • the pressable clamping jaws 148, 149, 150, 151 and the clamping plates 152 to 163 are arranged in the displaceable press crossmember 114 such that they can be moved transversely to the pressing stroke direction 164.
  • Each coupling rod 140, 141, 142, 143 has three longitudinal slots 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, in each of which a clamping plate 152 to 163 is effective.
  • Two press-on jaws 148, 149; 150, 151 are operatively connected to three clamping cylinders 177, 178, 179, 180, 181, 182 arranged one above the other.
  • Each clamping cylinder 177 to 182 has a single-acting piston 183, 184, 185, 186, 187, 188.
  • the hydraulic unit 191 essentially consists of a motor 192, a clutch 193, two pumps 194, 195, an oil tank 196, six valves 197, 198, 199, 200, 201, 202, a pressure gauge 203 and an oil filter 204.
  • the clamping movement of the clamping cylinders 177 to 182 is triggered by switching the two valves 199, 200 simultaneously and by switching on the motor 192.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Reinforced Plastic Materials (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP84114412A 1983-12-31 1984-11-28 Presse hydraulique pour comprimer des nattes en plastique renforcées de fibres de verre Expired EP0147652B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84114412T ATE42238T1 (de) 1983-12-31 1984-11-28 Hydraulische presse zum verpressen von mit glasfasern verstaerkten kunststoffmatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838337753U DE8337753U1 (de) 1983-12-31 1983-12-31 Hydraulische presse zum verpressen von mit glasfasern verstaerkten kunststoffmatten
DE8337753U 1983-12-31

Publications (3)

Publication Number Publication Date
EP0147652A2 true EP0147652A2 (fr) 1985-07-10
EP0147652A3 EP0147652A3 (en) 1985-10-09
EP0147652B1 EP0147652B1 (fr) 1989-04-19

Family

ID=6760440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114412A Expired EP0147652B1 (fr) 1983-12-31 1984-11-28 Presse hydraulique pour comprimer des nattes en plastique renforcées de fibres de verre

Country Status (5)

Country Link
US (1) US4552524A (fr)
EP (1) EP0147652B1 (fr)
JP (1) JPS60232938A (fr)
AT (1) ATE42238T1 (fr)
DE (2) DE8337753U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569610A1 (fr) * 1984-09-01 1986-03-07 Hoesch Ag Presse hydraulique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3637544A1 (de) * 1986-11-04 1988-05-05 Dieffenbacher Gmbh Maschf Hydraulische schnellhubpresse
ES2016945B3 (es) * 1987-05-07 1990-12-16 Theodor Grabener Pressensysteme Gmbh & Co Kg Prensa, especialmente para fabricacion de piezas prensadas con medida justa de sustancias pulverizadas y procedimiento para funcionamiento de tal prensa
JPH0438972Y2 (fr) * 1987-07-13 1992-09-11
IT1211575B (it) * 1987-12-03 1989-11-03 Fiat Auto Spa Pressa verticale per lo stampaggio di materiali plastici particolarmente materiali plastici termoindurenti
DE102018111001A1 (de) * 2018-05-08 2019-11-14 Multivac Sepp Haggenmüller Se & Co. Kg Verpackungsmaschine mit ausgleichszylinder

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820250A (en) * 1954-06-16 1958-01-21 Adamson United Company Press
US2792592A (en) * 1954-11-08 1957-05-21 Guy P Harvey & Son Corp Clamping mechanism for molding machine
US2812543A (en) * 1955-04-12 1957-11-12 French Oil Mill Machinery Swinging head presses
DE2060346A1 (de) * 1969-12-09 1971-06-09 Aoki K Verfahren und Vorrichtung zum Herstellen von Spritzgussformlingen
US3868201A (en) * 1973-04-17 1975-02-25 Wickes Corp Powdered metal press
IT1030158B (it) * 1975-02-17 1979-03-30 Tapiform Spa Macchina multipla per la formatura di rivestimenti tessili per ravimenti di agitacoli di autoveicoli
FR2413201A1 (fr) * 1977-12-27 1979-07-27 Poncet Pierre Perfectionnements au moulage par compression des matieres plastiques et analogues
US4255113A (en) * 1980-02-05 1981-03-10 Hitachi, Ltd. Fluid-operated press
US4304540A (en) * 1980-09-15 1981-12-08 Hammon Carl K Hydraulic press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569610A1 (fr) * 1984-09-01 1986-03-07 Hoesch Ag Presse hydraulique

Also Published As

Publication number Publication date
DE8337753U1 (de) 1985-04-11
EP0147652A3 (en) 1985-10-09
US4552524A (en) 1985-11-12
ATE42238T1 (de) 1989-05-15
JPS60232938A (ja) 1985-11-19
EP0147652B1 (fr) 1989-04-19
DE3477752D1 (en) 1989-05-24

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