EP1578585A2 - Procede pour reguler la production de pieces moulees par injection - Google Patents

Procede pour reguler la production de pieces moulees par injection

Info

Publication number
EP1578585A2
EP1578585A2 EP03813907A EP03813907A EP1578585A2 EP 1578585 A2 EP1578585 A2 EP 1578585A2 EP 03813907 A EP03813907 A EP 03813907A EP 03813907 A EP03813907 A EP 03813907A EP 1578585 A2 EP1578585 A2 EP 1578585A2
Authority
EP
European Patent Office
Prior art keywords
cavity
mold
injection
injection molding
temperature
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.)
Withdrawn
Application number
EP03813907A
Other languages
German (de)
English (en)
Inventor
Christopherus Bader
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.)
Priamus System Technologies AG
Original Assignee
Priamus System Technologies 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 Priamus System Technologies AG filed Critical Priamus System Technologies AG
Publication of EP1578585A2 publication Critical patent/EP1578585A2/fr
Withdrawn legal-status Critical Current

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
    • B29C45/73—Heating or cooling of 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
    • 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
    • B29C45/7686—Measuring, controlling or regulating the ejected articles, e.g. weight control
    • 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
    • B29C45/78—Measuring, controlling or regulating of temperature
    • 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
    • B29C45/73—Heating or cooling of the mould
    • B29C2045/7368—Heating or cooling of the mould combining a heating or cooling fluid and non-fluid means
    • 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
    • B29C2945/76006—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
    • B29C2945/76003—Measured parameter
    • B29C2945/7604—Temperature
    • 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
    • B29C2945/761—Dimensions, e.g. thickness
    • 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
    • B29C2945/76153—Optical properties
    • 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
    • B29C2945/76177—Location of measurement
    • B29C2945/76254—Mould
    • B29C2945/76257—Mould cavity
    • 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
    • B29C2945/76177—Location of measurement
    • B29C2945/7629—Moulded articles
    • 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
    • B29C2945/76464—Optical, e.g. laser cameras
    • 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
    • B29C2945/76531—Temperature
    • 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
    • B29C2945/76658—Injection unit
    • B29C2945/76665—Injection unit screw
    • 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
    • B29C2945/76658—Injection unit
    • B29C2945/76668—Injection unit barrel
    • B29C2945/76672—Injection unit barrel barrel-chamber
    • B29C2945/76675—Injection unit barrel barrel-chamber screw ante-chamber
    • 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
    • B29C2945/76732—Mould
    • B29C2945/76735—Mould cavity
    • 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
    • B29C2945/76732—Mould
    • B29C2945/76735—Mould cavity
    • B29C2945/76739—Mould cavity cavity walls
    • 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
    • B29C2945/76929—Controlling method
    • B29C2945/76936—The operating conditions are corrected in the next phase or cycle
    • 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
    • B29C2945/76929—Controlling method
    • B29C2945/76939—Using stored or historical data sets
    • B29C2945/76943—Using stored or historical data sets compare with thresholds

Definitions

  • the invention relates to a method for regulating the production of injection molded parts in an injection mold of an injection molding machine with a cavity and possibly a mold core, the temperature of the tool being regulated, and an injection molding machine therefor.
  • the filling process is controlled so that an initial speed-controlled phase is followed by a pressure-controlled phase that lasts until the end of the filling process.
  • a pressure-controlled phase that lasts until the end of the filling process.
  • BEST ⁇ TIGUNGSKOP ⁇ E Phase is reached the filling situation in which the mold cavity is completely wetted with plasticizable mass, the melt pressure inside the mold cavity being still comparatively low. This is followed by an increase in the mold internal pressure due to the continuation of the movement of an injection piston or an extruder, combined with a reduction in the specific volume or with an increase in the density of the molding compound located in the mold cavity.
  • the extent of the compression that can be achieved in this way depends both on the prevailing temperature and on the level of the pressure acting and on the characteristic properties of the molding composition.
  • the melt begins to solidify in the sprue. This seals the mold cavity, no further plastic melt can be fed.
  • the temperature in the mold cavity drops until the 1 bar isochore is reached. Now the molded part begins to shrink until the molded part has reached room temperature.
  • the shrinkage of the molded part is determined by the pressure and temperature conditions and in particular by the viscosity of the melt in the cavity.
  • An essential factor for the shrinkage of the molded part is the temperature distribution in the cavity at the end of the filling phase (or from the maximum pressure) until the end of the cycle.
  • a different shrinkage from cycle to cycle results from the fluctuation of the temperature profile and from the fluctuation of the mold cavity pressure profile.
  • DE 101 14 228 A discloses a method for uniformizing the shrinkage behavior of an injection molded part both between individual cavities of a multiple tool and from cycle to cycle of an injection process.
  • the temperature and / or an internal pressure in the cavity is monitored and adjusted to a reference curve by tempering the tool from the end of the filling phase or from a pressure maximum in the cavity to the end of the injection cycle.
  • the present invention is based on the object of demonstrating further possibilities in order to uniformize the manufacture of molded parts in a simple manner and possibly to certain properties - such as a certain dimension - to regulate.
  • the cavity and / or the mandrel is heated or cooled directly.
  • the shrinkage behavior of a molded part is only regulated with the help of mold cavity pressure and mold wall temperature by adjusting the temperature of one or more cooling circuits via the temperature of the cooling medium, but now the temperature of the cavity or the mold core is directly influenced.
  • heating elements or cooling elements are directly assigned to the cavity or the mandrel.
  • Coating of the cavity is also conceivable, for example and / or the mandrel with a thermo-ceramic coating, which is known under the name "thermoceramix.
  • the cavity or the mold core is heated directly to a desired temperature. Excess heat can be dissipated through one or more temperature control circuits.
  • thermosets processes with the reverse principle (hot tool / cold melt), such as the injection molding of thermosets.
  • Elastomers and silicone melts are regulated using heat-dissipating methods so that the pressure and temperature conditions in the cavity or cavities remain constant.
  • cooled mold cores or heat-dissipating metal inserts or coatings can be used.
  • the closed control loop in which an optical view of the molded part produced is included.
  • the closed control loop can be expanded such that one or more dimensions of one or more are preferably used outside of the mold with the help of an optical instrument several molded parts as well as the surface condition or color of the molded parts may be measured and included in the control. This has the advantage that it is not only regulated relatively via constant pressure and temperature conditions, but also absolutely on the basis of certain part dimensions, or possibly on the basis of a certain surface quality.
  • the optical detection instrument should be outside the tool or the production area, for example outside on the Injection molding machine, can be arranged where the injection molded part or parts can be positioned and "scanned" using a handling system.
  • a scanner or a CCD camera can be used as an instrument, for example.
  • this control principle offers cost advantages compared to the known visual surveillance systems (surveillance cameras) and can also be installed without personal support.
  • the service effort is much lower, it is also conceivable as an OEM product.
  • Handling / removal devices are already widely used in the injection molding process, so that additional optical monitoring can be integrated without much additional effort.
  • FIG. 1 shows a schematically represented side view of an injection molding machine according to the invention
  • Figure 2 is a schematically illustrated side view of another embodiment of an injection molding machine.
  • An extruder unit 2 stands on, for example, a hall floor 1, with plastic reaching a screw 4 from a store 3. The plastic is pressed out of the screw 4 into channels (not shown in more detail) of an injection mold 5.
  • the injection mold 5 has a stationary mold plate 6 and a movable mold plate 7. Both plates 6 and 7 are guided on guide columns 8.
  • Molded cores 9 are located on the movable mold plate 7 and cooperate with cavities 10 in the stationary mold plate 6 in order to form a mold space for producing a molded part (not shown in more detail).
  • heating element 11 are provided in the mandrel.
  • the cavity 10 is also assigned three heating elements 12.1 to 12.3. It is also indicated that the interior of the cavity 10 is provided with a thermo-ceramic coating 13, which can be located both on the surface, below the surface and behind the tool insert.
  • At least one cooling circuit 14 is located both in the stationary mold plate 6 and in the movable mold plate 7.
  • the basic idea of the invention is that the temperature of a cavity or a mandrel is not only regulated via the cooling circuits and there via the temperature of the cooling medium, but also with the aid of the heating elements. If it is determined that the cavity or mandrel is too low in temperature, the heating elements are regulated higher. If, on the other hand, it is determined that the temperature in the cavity or on the mandrel is too high, the excess heat is dissipated through the cooling circuit. For example, the circulation in the cooling circuit is increased or the temperature of the cooling medium is lowered.
  • the aim is to keep pressure and temperature conditions in the cavity or cavities 10 constant.
  • the reverse principle can also be used to regulate the injection molding of thermosets, elastomers and silicone melts using heat-dissipating methods.
  • cooled mold cores or heat-dissipating metal inserts can be used instead of the heating elements.
  • FIG. 1 A further method according to the invention is indicated in FIG. This is a closed control loop, the pressure p and the temperature T in the mold space being determined. Furthermore, the molded part itself is examined via an instrument 15. For example, the instrument 15 detects the dimension of the molded part, its surface quality or its color, the corresponding values reaching a control 16 and being compared there with stored reference values, just like the temperature and the pressure in the cavity. The result of this comparative analysis is then followed by a corresponding one Signal output to a machine controller 17, which in turn regulates the injection molding process and in particular the temperature of the melting and molding plates and the injection pressure. Control is therefore not only relative to constant pressure and temperature conditions, but also absolutely to certain properties of the molded parts.

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

L'invention concerne un procédé pour réguler la production de pièces moulées par injection dans un moule à injection (5), comprenant une cavité (10) et éventuellement un coeur de moule (9), d'une presse d'injection, selon lequel la température du moule à injection (5) est régulée. Le procédé selon l'invention est caractérisé en ce que la cavité (10) et/ou le coeur de moule (9) sont directement chauffés ou refroidis.
EP03813907A 2002-12-23 2003-12-22 Procede pour reguler la production de pieces moulees par injection Withdrawn EP1578585A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10261498A DE10261498B4 (de) 2002-12-23 2002-12-23 Verfahren zum Regeln der Herstellung von Spritzteilen
DE10261498 2002-12-23
PCT/EP2003/014715 WO2004058476A2 (fr) 2002-12-23 2003-12-22 Procede pour reguler la production de pieces moulees par injection

Publications (1)

Publication Number Publication Date
EP1578585A2 true EP1578585A2 (fr) 2005-09-28

Family

ID=32519469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03813907A Withdrawn EP1578585A2 (fr) 2002-12-23 2003-12-22 Procede pour reguler la production de pieces moulees par injection

Country Status (7)

Country Link
US (1) US20060202370A1 (fr)
EP (1) EP1578585A2 (fr)
JP (1) JP2006511362A (fr)
KR (1) KR20060020599A (fr)
AU (1) AU2003296705A1 (fr)
DE (1) DE10261498B4 (fr)
WO (1) WO2004058476A2 (fr)

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DE102010042759B4 (de) * 2010-10-21 2014-03-27 Skz - Kfe Ggmbh Kunststoff-Forschung Und -Entwicklung Verfahren zur Herstellung von Kunststoff-Formteilen
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DE102014106410B4 (de) * 2014-05-07 2016-03-10 Feller Engineering Gmbh Verfahren zur Herstellung von Formteilen in einer Spritzgießmaschine
KR101696919B1 (ko) * 2015-04-20 2017-01-23 한국신발피혁연구원 사물인터넷 활용 빅데이터 수집 분석에 의한 실시간 신발솔 제조관리 시스템
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AU2003296705A8 (en) 2004-07-22
US20060202370A1 (en) 2006-09-14
DE10261498B4 (de) 2008-04-30
WO2004058476A3 (fr) 2004-11-11
KR20060020599A (ko) 2006-03-06
WO2004058476A2 (fr) 2004-07-15
JP2006511362A (ja) 2006-04-06
DE10261498A1 (de) 2004-07-22
AU2003296705A1 (en) 2004-07-22

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