IT1275596B1 - PROCEDURE FOR COMPENSATION OF THE UPWARD CONVEXITY OF INJECTION MOLDING MACHINES DURING EACH CYCLE - Google Patents

PROCEDURE FOR COMPENSATION OF THE UPWARD CONVEXITY OF INJECTION MOLDING MACHINES DURING EACH CYCLE

Info

Publication number
IT1275596B1
IT1275596B1 IT95MI001589A ITMI951589A IT1275596B1 IT 1275596 B1 IT1275596 B1 IT 1275596B1 IT 95MI001589 A IT95MI001589 A IT 95MI001589A IT MI951589 A ITMI951589 A IT MI951589A IT 1275596 B1 IT1275596 B1 IT 1275596B1
Authority
IT
Italy
Prior art keywords
injection molding
machine
convexity
cycle
mold
Prior art date
Application number
IT95MI001589A
Other languages
Italian (it)
Inventor
Volker Krell
Original Assignee
Kloeckner Desma Elastomertechn
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 Kloeckner Desma Elastomertechn filed Critical Kloeckner Desma Elastomertechn
Publication of ITMI951589A0 publication Critical patent/ITMI951589A0/en
Publication of ITMI951589A1 publication Critical patent/ITMI951589A1/en
Application granted granted Critical
Publication of IT1275596B1 publication Critical patent/IT1275596B1/en

Links

Classifications

    • 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
    • B29C45/72—Heating or cooling
    • 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
    • B29C45/1742—Mounting of moulds; Mould supports
    • B29C45/1744—Mould support platens
    • 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
    • B29C45/1761—Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames
    • 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
    • B29C45/1761—Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames
    • B29C2045/1768—Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames constructions of C-shaped frame elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Un procedimento per la compensazione della convessità verso l'alto degli stampi di formatura delle macchine di stampaggio a iniezione durante ogni ciclo di stampaggio, nel quale viene prodotta in almeno una delle due piastre di serraggio dello stampo, almeno su una parte prevalente della sua superficie perpendicolare alla direzione di chiusura della macchina, una riduzione di temperatura costante per una pluralità di cicli di stampaggio ad iniezione o variabile periodicamente con i cicli di stampaggio ad iniezione nella direzione di chiusura della macchina, che provoca una definita convessità verso l'alto della piastra di serraggio dello stampo dalla sua zona di bordo alla mezzaria della sua superficie, e/o di modo che in una zona del telaio della macchina fra la piastra di serraggio dello stampo posta in posizione fissa e il controsupporto sia anche prodotta una riduzione di temperatura diretta perpendicolare all'asse del movimento di chiusura della macchina, la quale riduzione di temperatura provoca una definita convessità verso l'alto del telaio della macchina perpendicolare al suo asse longitudinale.(Figura 1).A process for compensating the upward convexity of the molds of injection molding machines during each molding cycle, in which it is produced in at least one of the two clamping plates of the mold, at least on a prevalent part of its surface perpendicular to the closing direction of the machine, a constant temperature reduction for a plurality of injection molding cycles or periodically variable with the injection molding cycles in the closing direction of the machine, which causes a definite convexity towards the top of the plate clamping of the mold from its edge area to the middle of its surface, and / or so that in a zone of the machine frame between the mold clamping plate placed in a fixed position and the counter support there is also a direct temperature reduction perpendicular to the axis of the closing movement of the machine, which reduces the temperature causes a definite convexity towards the top of the machine frame perpendicular to its longitudinal axis (Figure 1).

IT95MI001589A 1994-08-06 1995-07-21 PROCEDURE FOR COMPENSATION OF THE UPWARD CONVEXITY OF INJECTION MOLDING MACHINES DURING EACH CYCLE IT1275596B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4427949A DE4427949C1 (en) 1994-08-06 1994-08-06 Compensation for mould bulging in injection moulding machines

Publications (3)

Publication Number Publication Date
ITMI951589A0 ITMI951589A0 (en) 1995-07-21
ITMI951589A1 ITMI951589A1 (en) 1997-01-21
IT1275596B1 true IT1275596B1 (en) 1997-08-06

Family

ID=6525129

Family Applications (1)

Application Number Title Priority Date Filing Date
IT95MI001589A IT1275596B1 (en) 1994-08-06 1995-07-21 PROCEDURE FOR COMPENSATION OF THE UPWARD CONVEXITY OF INJECTION MOLDING MACHINES DURING EACH CYCLE

Country Status (3)

Country Link
DE (1) DE4427949C1 (en)
FR (1) FR2723336A1 (en)
IT (1) IT1275596B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19501469C2 (en) * 1995-01-19 1998-03-26 Hemscheidt Maschtech Schwerin Tie bar-less form locking device
IT1304164B1 (en) * 1998-12-14 2001-03-08 Cannon Spa SYSTEM TO COMPENSATE THE DEFORMATIONS IN FRAMES OF PRESSES WITHOUT COLUMNS.
BR9917027A (en) * 1998-12-14 2001-09-25 Cannon Spa Method and device for closing mold for molding press
DE202008010066U1 (en) * 2007-08-16 2008-10-16 Netstal-Maschinen Ag Device for an injection molding machine with a tool clamping plate
AT514247B1 (en) * 2013-04-30 2015-02-15 Engel Austria Gmbh Closing unit of an injection molding machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121918A (en) * 1960-04-07 1964-02-25 Us Rubber Co Molding apparatus
DE2545366A1 (en) * 1975-10-09 1977-04-21 Kuesters Eduard PRESS FOR EXERCISING A SURFACE PRESSURE
DE3116379A1 (en) * 1979-12-14 1982-12-23 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Press with heated plates
JPS63181438A (en) * 1987-01-23 1988-07-26 Mitsubishi Electric Corp Metal mold for plastic sealing of semiconductor device
DE4037406A1 (en) * 1990-11-24 1992-05-27 Kloeckner Ferromatik Desma Injection mould for small accurate parts - has hollow outer tool which is pressurised when shot is injected into mould to compensate for mould deflection at centre
JPH05104595A (en) * 1991-10-21 1993-04-27 Matsushita Electric Works Ltd Spacer block for mold
DE4317476C2 (en) * 1993-05-26 1996-05-15 Kloeckner Desma Elastomertechn Device for minimizing expansion on injection molded parts

Also Published As

Publication number Publication date
ITMI951589A1 (en) 1997-01-21
DE4427949C1 (en) 1995-09-21
ITMI951589A0 (en) 1995-07-21
FR2723336A1 (en) 1996-02-09

Similar Documents

Publication Publication Date Title
IT1239773B (en) FRAME FOR ELECTRO-OPTIC LENSES.
DE69112832D1 (en) GATE WITH FASTER CYCLES FOR INJECTION MOLDING OPTICAL PLATES.
IT8224315A0 (en) INJECTION MOLDING MACHINE FOR PLASTIC MATERIALS WITH MOLD CLOSING UNIT SUPPORTED ON RAILS.
ATE127725T1 (en) DEVICE FOR CLOSING MOLDS OF AN INJECTION MOLDING MACHINE.
IT1275596B1 (en) PROCEDURE FOR COMPENSATION OF THE UPWARD CONVEXITY OF INJECTION MOLDING MACHINES DURING EACH CYCLE
FR2558411B1 (en) METHOD FOR SHAPING A CONTINUOUS-SHAPED MOLDED ARTICLE, AND APPARATUS FOR SHAPING THE ARTICLE
ATE179359T1 (en) BARLESS MOLD CLOSING DEVICE FOR INJECTION MOLDING MACHINES
ES8406291A1 (en) Injection press as well as method for producing injection-moulded parts.
FR2397278A1 (en) PROCESS AND MOLD FOR THE MANUFACTURING OF SYNTHETIC MATERIALS OF EYEWEAR FRAMES
ES8100775A1 (en) External frame injection molding apparatus
IT8124853A0 (en) UNIT FOR CLOSING THE MOLD OF AN INJECTION MOLDING MACHINE.
DE69128415D1 (en) MOLDS FOR HORIZONTAL / VERTICAL DIE CASTING MACHINES
DE69715598T2 (en) INJECTION MOLDING
BR9102853A (en) MOLD DISPLACEMENT PROCESS
FR2593098B1 (en) IMPROVEMENTS IN CONTINUOUS CASTING MACHINES.
IT1145294B (en) MOLD CLOSING DEVICE FOR INJECTION MOLDING MACHINES
IT8404888A0 (en) MACHINE FOR THE INJECTION MOLDING OF PLASTIC MATERIALS WITH A MOLD CLOSING UNIT SUPPORTED THROUGH ITS STATIONARY MOLD HOLDER AND A COUNTER SUPPORT PLATE.
ATE235363T1 (en) MOLD CLOSING UNIT FOR AN INJECTION MOLDING MACHINE
RU93004473A (en) DEVICE FOR CLOSING THE PRESS FORM FOR CASTING MACHINES
DE59605067D1 (en) CLOSING UNIT FOR AN INJECTION MOLDING MACHINE
IT226966Z2 (en) CENTRIFUGAL MOLDING MACHINE FOR LOW MELTING METALS OR SYNTHETIC MATERIALS
FR2541718B1 (en) RACK FRAME PROFILE, PARTICULARLY FOR REMOVABLE PARTITIONS AND MOUNTINGS OBTAINED USING SAID PROFILE.
ATA235990A (en) DEVICE FOR COMPENSATING THE DEFLECTION OF PRESS FRAMES
ITMI913419A1 (en) IMPROVEMENT IN THE BLOCK OF A SET OF SPINNING HEADS FOR THEIR UNIFORM HEATING
KR940024424U (en) Mold for Press Machine

Legal Events

Date Code Title Description
0001 Granted