WO2005023511A1 - Spritzgiessmaschine mit vertikal verfahrbarer schliesseinheit - Google Patents
Spritzgiessmaschine mit vertikal verfahrbarer schliesseinheit Download PDFInfo
- Publication number
- WO2005023511A1 WO2005023511A1 PCT/DE2004/001876 DE2004001876W WO2005023511A1 WO 2005023511 A1 WO2005023511 A1 WO 2005023511A1 DE 2004001876 W DE2004001876 W DE 2004001876W WO 2005023511 A1 WO2005023511 A1 WO 2005023511A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- movable platen
- cylinder arrangement
- platen
- plate
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P7/00—Emergency devices preventing damage to a machine or apparatus
-
- 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
- B29C45/67—Mould opening, closing or clamping devices hydraulic
- B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
- B29C45/6714—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/80—Measuring, controlling or regulating of relative position of mould parts
-
- 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
- B29C45/84—Safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
- F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
- F16P3/144—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using light grids
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76083—Position
- B29C2945/76096—Distance
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76167—Presence, absence of objects
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76451—Measurement means
- B29C2945/76461—Optical, e.g. laser
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76775—Fluids
- B29C2945/76785—Fluids hydraulic fluids
Definitions
- the invention relates to an injection molding machine with a vertically movable clamping unit, which connects a plate-like lower yoke as a counterpressure plate, a plate-like upper yoke as a fixed mold mounting plate, at least two vertically oriented home or a C-yoke, the lower and upper yokes in the edge regions, and a having another plate-like member as a movable mold clamping plate, wherein the movable mold clamping plate by means of suitable actuators on the stationary • platen toward and is moved away, whereby in the closed position (maxi male convergence of fixed and movable mold mounting plate) between the counter-pressure plate and movable mold mounting plate a from the outside ' Piston-cylinder arrangement which can be acted upon with a fluid medium to apply the required locking force for the spraying process can be retracted horizontally and can be withdrawn after the spraying process.
- Such an injection molding machine is known from DE 101 00 001 C1. Between the movable and the fixed platen is the mold, which must be held together with considerable forces in the closed position for the spraying process.
- This force is applied by the horizontally retracted piston-cylinder arrangement in its short-stroke mode (works as a pressure cushion).
- this piston-cylinder arrangement can also have a long-stroke mode, which is intended to carry out the tool height adjustment.
- the present invention is therefore based on the object of designing an injection molding machine of the type mentioned at the outset such that the retraction and extension movement of the pressure cushion (piston-cylinder arrangement) is started by the machine control only when between the piston-cylinder arrangement and the underside there is a sufficient distance between the movable platen.
- the invention solves this problem according to the characterizing part of claim 1 in that the space which is created by the distance (a) between the plane spanned by the underside of the movable platen and that by the top of the Piston-cylinder arrangement spanned plane is formed below the movable platen, can be monitored by means of a light barrier.
- the light barrier the light source of which may be a laser according to claim 2, consists of a reflector corresponding in height to the distance (a), which is arranged under the movable platen and a laser arranged outside the machine, the light between the movable platen and the top of the piston-cylinder arrangement is aligned with the reflector, a receiver receiving the reflected signal being provided in the laser, which is connected to the machine control system via signal evaluation electronics.
- the light emitted by the laser is only reflected back into the receiver at maximum intensity if, on the one hand, there is a gap between the top of the piston-cylinder arrangement and the underside of the movable platen and if there are no foreign bodies in this gap.
- the signal evaluation electronics thus pass on the "maximum signal" to the machine control, which initiates the retracting or, after the spraying process, the extending movement of the piston-cylinder arrangement.
- the receiver does not receive the maximum signal, the ⁇ introduction or extension movement of the pressure pad is not started until either the foreign bodies have been removed or - also via the machine control - the piston-cylinder arrangement has been inserted into the cylinder to such an extent that there is a sufficient gap arises.
- Fig. 2 injection molding machine with retracting pressure pad
- Fig. 3 Injection molding machine with the pressure pad retracted.
- an injection molding machine is shown and generally designated by "the reference numeral 1. It consists of a platen 2, a stationary mold mounting plate 3, which are connected by struts 4-positively with each other. On the bars 4 is provided between the platen 2 and the stationary mold mounting plate 3 a further platen 5. It can be moved by means of hydraulic cylinders, not shown in the drawings.
- a piston-cylinder arrangement 6 can be moved horizontally into the area between the movable platen 5 and the counter-pressure plate 2.
- This piston-cylinder arrangement 6 serves on the one hand to support the movable platen in its retracted state in its short stroke mode by means of the piston 7. zen that the locking force required for the injection molding process is applied to the mold.
- this piston-cylinder arrangement 6 can be used in its long-stroke mode to set the required tool height.
- a reflector 8 is arranged thereon, which corresponds to a light source, in this case a laser 9, which is installed on the side next to the machine and also on the side next to the extended piston-cylinder arrangement 6.
- the light emitted by the laser 9 onto the reflector 8 sweeps over the surface of the piston 7 of the piston-cylinder arrangement 6 and detects whether the piston has been retracted to such an extent that the reflector 8 is hit and a maximum signal on the Receiver in the laser 9 falls behind.
- this signal is used to cause the machine control, also not shown, to initiate the running-in process for the piston-cylinder arrangement 6.
- the piston-cylinder arrangement 6 is located below the movable platen 5.
- the piston is now extended and the required closing force is applied.
- the piston is retracted again, so that there is a distance between the platen 5 and the piston 7. This state is also monitored by the detector 9 and the extension movement is prevented in the presence of foreign bodies or in the absence of the corresponding gap.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112004002130T DE112004002130B4 (de) | 2003-08-29 | 2004-08-25 | Spritzgießmaschine mit vertikal verfahrbarer Schließeinheit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10340379.5 | 2003-08-29 | ||
DE10340379A DE10340379A1 (de) | 2003-08-29 | 2003-08-29 | Spritzgießmaschine mit vertikal verfahrbarer Schließeinheit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005023511A1 true WO2005023511A1 (de) | 2005-03-17 |
Family
ID=34202329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/001876 WO2005023511A1 (de) | 2003-08-29 | 2004-08-25 | Spritzgiessmaschine mit vertikal verfahrbarer schliesseinheit |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE10340379A1 (de) |
WO (1) | WO2005023511A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0857914A (ja) * | 1994-08-23 | 1996-03-05 | Seikosha Co Ltd | カセット式射出成形金型装置 |
WO2000067932A1 (en) * | 1999-05-05 | 2000-11-16 | Lazer Safe Pty Ltd | Industrial press safety system |
DE10100001C1 (de) * | 2001-01-01 | 2002-05-23 | Kloeckner Desma Elastomertechn | Spritzgießmaschine mit vertikal verfahrbarer Schließeinheit |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3636949C3 (de) * | 1986-10-30 | 1994-04-07 | Mannesmann Ag | Spritzgießanlage |
JP3380750B2 (ja) * | 1998-08-25 | 2003-02-24 | 株式会社ソディック | 射出成形機の型締装置 |
-
2003
- 2003-08-29 DE DE10340379A patent/DE10340379A1/de not_active Withdrawn
-
2004
- 2004-08-25 WO PCT/DE2004/001876 patent/WO2005023511A1/de active Application Filing
- 2004-08-25 DE DE112004002130T patent/DE112004002130B4/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0857914A (ja) * | 1994-08-23 | 1996-03-05 | Seikosha Co Ltd | カセット式射出成形金型装置 |
WO2000067932A1 (en) * | 1999-05-05 | 2000-11-16 | Lazer Safe Pty Ltd | Industrial press safety system |
DE10100001C1 (de) * | 2001-01-01 | 2002-05-23 | Kloeckner Desma Elastomertechn | Spritzgießmaschine mit vertikal verfahrbarer Schließeinheit |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 07 31 July 1996 (1996-07-31) * |
RASCHER M ET AL: "LICHTSCHRANKEN ANWENDUNGEN IN DER INDUSTRIELLEN AUTOMATION, PASSAGE", LICHTCSHRANKEN. ANWENDUNGEN IN DER INDUSTRIELLEN AUTOMATION, 1987, pages 18 - 25,50, XP001212603 * |
Also Published As
Publication number | Publication date |
---|---|
DE112004002130D2 (de) | 2006-07-13 |
DE112004002130B4 (de) | 2011-12-08 |
DE10340379A1 (de) | 2005-03-24 |
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