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WO2015035980A1 - Dispositif d'échange de moules de moulage par injection - Google Patents

Dispositif d'échange de moules de moulage par injection Download PDF

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Publication number
WO2015035980A1
WO2015035980A1 PCT/DE2014/100318 DE2014100318W WO2015035980A1 WO 2015035980 A1 WO2015035980 A1 WO 2015035980A1 DE 2014100318 W DE2014100318 W DE 2014100318W WO 2015035980 A1 WO2015035980 A1 WO 2015035980A1
Authority
WO
WIPO (PCT)
Prior art keywords
injection
mold
molding machine
injection molding
tool
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.)
Ceased
Application number
PCT/DE2014/100318
Other languages
German (de)
English (en)
Inventor
Volker Franke
Heinrich Bajohr
Volker Huckriede
Torsten Ratzmann
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.)
Harting Applied Technologies GmbH
Original Assignee
Harting Applied Technologies GmbH
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 Harting Applied Technologies GmbH filed Critical Harting Applied Technologies GmbH
Publication of WO2015035980A1 publication Critical patent/WO2015035980A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B29C45/1756—Handling of moulds or mould parts, e.g. mould exchanging 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/006—Handling moulds, e.g. between a mould store and a moulding machine
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/305—Mounting of moulds or mould support plates
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/32—Mounting, exchanging or centering using magnetic 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
    • 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
    • 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
    • B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
    • B29C2045/1796—Moulds carrying mould related information or codes, e.g. bar codes, counters
    • 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
    • B29C2045/645—Mould opening, closing or clamping devices using magnetic 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/34—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station

Definitions

  • the present invention relates to a device for changing injection molds on injection molding machines.
  • a device for changing injection molds on injection molding machines is required on the one hand to remove a mounted injection mold from an injection molding machine, and also to install another injection mold on an injection molding machine and to put into operation.
  • injection molds which are used for injection molding, preferably plastic parts, usually have a very high weight, since they are very solid.
  • injection molds depending on the complexity of the parts to be produced, have a multiplicity of filigree, sensitive components.
  • the usually consisting of at least two mold halves injection molds should also be mutually secured during assembly and during disassembly of an injection molding machine and firmly connected.
  • both a correct alignment and tion, as well as secure attachment of the mold halves done on so-called clamping plates.
  • DE 32 22 828 A1 shows a mold clamping unit for injection molding machines, in addition to which waiting stations are provided for heating injection molds. For this purpose, parking spaces for injection molds are arranged on a transport table arranged next to the injection molding machine.
  • the injection molds can be transported from the transport table into the mold closing unit as well as out of the mold closing unit.
  • the mold clamping unit the mold halves of the injection mold then have to be correctly aligned with the mold clamping unit and with respect to each other and mechanically securely connected thereto.
  • the tool changing device has a driven roller conveyor over which the tool is rollable between the mold clamping plates of an injection molding machine.
  • the roller conveyor has a plurality of driven rollers, each driven roller being provided with its own motor.
  • the tool when the tool has been rolled between the platens, the tool correctly becomes the mold platens and itself aligned and then mechanically connected to the mold clamping plates before the production process can begin.
  • the injection mold located in the machine must first be released. Then this injection mold must be transported via the changing device - as are known in the art various - from the injection molding machine.
  • injection molds must be ranked. This can be realized by a solution known from the prior art, or manually by moving the molds by means of a trolley and / or a crane. For manual transport by hand, most injection molds are too heavy.
  • the object of the present invention is to reduce the service life of injection molding machines during the exchange process of injection molds. In this case, a firm and correct installation of the injection molds in the injection molding machine is to be ensured. In addition, the accessibility for the assembly of injection molds is to be simplified on an injection molding machine. The object is solved by the subject matter of independent claim 1.
  • the present invention is an apparatus for changing tools on an injection molding machine.
  • the tools are preferably injection molds. These injection molds are required to inject a liquefied material into a specific, defined shape with the injection molding machine.
  • the material used is melted in a first part of the injection molding machine, the so-called injection unit.
  • the material is preferably a plastic.
  • a plastic is assumed.
  • the present invention is not limited to plastics, but can apply mutatis mutandis to any other, liquefiable material.
  • the liquefied material is subsequently pressed out of the injection unit into an injection mold which is received in the injection molding machine. Due to the injection mold, the material gets its shape. After cooling, solidification or curing of the material, the preferably two-part executed injection mold can be opened and the finished, solidified parts are demolded from this.
  • a closing unit is provided on the injection molding machine.
  • one of the mold halves is expediently mounted on a movable tool holder.
  • the second mold half is at the end of the injection unit, too provided and fixed on a tool holder. This has an opening for injecting the liquefied material.
  • the two-part injection mold for injecting the material By opening and closing the closing unit of the injection molding machine, the two-part injection mold for injecting the material can be closed and opened to remove the solidified material.
  • the injection molding machine has supply lines to which the injection mold can be connected. These supply lines can transmit signals as well as energy. The energy can be transmitted both in electrical form, but also pneumatically, hydraulically or thermally in the injection mold.
  • the injection mold may be necessary to control various mechanical parts in the injection mold. Often, the injection mold must be maintained at a certain operating temperature so that the injected material does not solidify prior to complete filling of the injection mold.
  • the present invention discloses an apparatus for changing these injection molds on an injection molding machine.
  • the device has a tool carrier which is suitable for receiving at least one injection mold, preferably two injection molds.
  • at least two tool holders are provided on the tool carrier.
  • the tool carrier is movably mounted by means of a transport on the injection molding machine. It is envisaged to arrange the tool carrier between the injection unit and the closing unit. So the tool holder sets the tool holder at the end of the injection unit for receiving the first mold half.
  • the tool carrier can be moved by the transport means transversely to the machine axis, both sides in about half its length from the injection molding machine out. This makes it possible to position one of the tool holders of the tool carrier in front of the injection unit, while the second tool holder is positioned laterally - right or left - next to the injection molding machine.
  • the transport for moving the tool carrier can be designed differently. Both a roller or sliding guide is appropriate. But even technically more complex designs, such as an air cushion on which the tool carrier is mounted, would be conceivable. This would have the advantage in particularly heavy injection molds that no friction and no wear on the bearing are to be expected. By means of an air cushion and a heavy tool carrier with heavy injection molds can be moved without much effort.
  • the tool carrier does not necessarily have to be moved by a linear movement between its positions.
  • an injection molding machine having the tool changing device of the present invention has more than one set of injection mold supply pipes. It is expedient to have just as many sets of supply lines for injection molds as tool holders on the tool carrier. This makes it possible to connect any injection mold mounted on the tool carrier to the signal and above all to the power supply. This is expediently used to preheat the injection mold before the tool change. As a result, the warm-up phase is made parallel to the production process of the preceding injection mold and thus saves the time for warming up the injection mold. Also, a reheating for cleaning purposes may be useful.
  • the injection molding machine in the work area, in which the injection molds are located during the production process via an electric reading device. This can read production data which the injection molding machine requires individually for each injection mold from a reservoir which is mounted on the injection mold.
  • the inventive design of the device for changing tools of an injection molding machine especially a quick change of injection molds on such a machine is possible.
  • the final assembly of the injection mold during production with another injection mold, a rapid change from one to the next form can be made possible.
  • this change process can be fully automatic as soon as the injection molding machine needs the next mold. This can be done depending on a reachable number or even after a maximum production time.
  • An optional, electric drive of the changing device allows the injection molding machine to automatically put the prepared injection mold into operation. The intervention of a
  • Another advantage is that the already assembled and prepared injection mold can already be preheated for production. The often very hot molds no longer need to be moved and / or handled by a mechanic or machine setter. The risk of injury can be drastically reduced.
  • an injection molding machine equipped with a corresponding device according to the invention can be operated in a kind of on-demand production.
  • a second injection mold can be mounted on a second tool holder "on demand" .
  • This can be, for example, for a product / work piece which has to be produced in a shorter quantity in the short term.
  • the current production on the first injection mold can be interrupted briefly and on the already tempered, second
  • Injection mold the production of a small number of parts are interposed. Subsequently, it is possible to continue production on the first injection mold without it having to be removed from the machine, or it has cooled down.
  • the injection molding machine 50 consists essentially of a machine base 56 on which the other machine components are provided.
  • an injection unit 51 As further machine components, an injection unit 51, a closing unit 52 and a work area 53 are provided. In this case, the working area 53 is arranged between the injection unit 51 and the closing unit 52.
  • the injection unit 51 consists of a material receptacle 57 in which material to be liquefied can be received. From the material receiving 57, the material enters a condenser 58 which melts the material. The molten material is transported by means of a screw conveyor to a spray nozzle 59.
  • the molten material is directed into the working area 53 of the injection molding machine 50.
  • the device for changing tools directly adjoins the spray nozzle 59.
  • the device for changing tools is formed from a tool carrier 10.
  • the here elongated tool carrier 10 is linearly movable by a transport 12, arranged transversely to the machine longitudinal axis L.
  • the tool carrier 10 has two tool holders 1 1, 1 1 ', which each have received a tool. In the illustrated position, a first tool on the first tool holder 1 1 is in a working position P1 in the working area 53 of the injection molding machine 50. A second tool is mounted on the second tool holder 1 1 'of the tool carrier 10 and is located in a set-up position P2' outside the working area 53 of the injection molding machine 50.
  • the tools shown here are expediently injection molds 30, 30 '. These are attached to the tool holders 1 1, 1 1 'by means known in the art arrangements. This can i.a. be realized by fastening with screws. But also known as claws fasteners are useful here.
  • the tool holder 1 1, 1 1 ' is only a first mold half 31, 31' with the tool holder 1 1, 1 1 'mechanically connected.
  • the first mold half 31' and the second mold half 32 ' are additionally mechanically connected to one another.
  • the attachment of the second mold halves 32, 32 'to the clamping unit 52 is advantageously carried out by means of magnetism.
  • the closing unit 52 is provided with a tool holder 60, which consists essentially of a permanent magnet. At this permanent magnet, the second mold half 32 of the injection mold 30 adheres.
  • an electromagnet is activated so that the magnetic fields of permanent and electromagnet cancel each other.
  • An attachment and detachment of the second mold halves 32, 32 'of the tool holder 60 of the clamping unit 52 is possible.
  • the tool carrier 10 is expediently provided with a means of transport 12. see, which can realize a movement of the tool carrier 10 from the illustrated first position to a second position (see Figure 7).
  • the illustrated transport 12 is formed from two linear bearings. The linear bearings allow a linear movement of the tool carrier 10 transversely to the machine longitudinal axis L.
  • the tool carrier 10 is in a position in which the first tool holder 1 1 is in a working position P1 in the working area 53 of the injection molding machine 50.
  • the second tool holder 1 1 ' is located outside the injection molding machine 50 in a set-up position P2'.
  • the first tool holder 1 1 By linear movement of the tool carrier 10 from the illustrated first position to a further, second position, the first tool holder 1 1 can be moved from the working position P1 to a set-up position P2. At the same time, the second tool holder 1 1 'moves from the set-up position P 2' into the working position P 1 '.
  • the working position P1 'of the second tool holder 11' is identical to the working position P1 of the first tool holder 11.
  • the tool carrier 10 is in a first position.
  • the injection mold 30 on the tool holder 1 1 is arranged in the working position P1 in the working region 53 of the injection molding machine 50.
  • the first mold half 31 is mechanically connected to the tool holder 1 1, wherein the second mold half 31 is connected to the tool holder 60 of the clamping unit 52.
  • the closing unit 52 is closed, melted material can be injected into the injection mold 30 via the injection unit 51.
  • the closing unit 52 opens and the cooled, solidified material can be removed from the injection mold 30.
  • the second injection mold 30 ' can already be mounted on the second tool holder 11' in the set-up position P2 '. An interruption of the production process is not necessary.
  • the closing unit 52 To initiate the change process, the closing unit 52 must first be closed and the two mold halves 31, 32 of the injection mold 30 mechanically connected to one another with a transport lock. This is shown in FIG.
  • the previously described transport securing the mold halves 31, 32 is not shown in the figures.
  • the prior art offers a variety of designs, all of which can be combined with the invention and applicable to these.
  • the magnetic adhesion of the second mold half 32 to the tool holder 60 can be achieved by activating the electromagnet at the closing unit 52.
  • the closing unit 52 can be opened without the injection mold 30 being opened. The opening of the closing unit 52 is shown in FIG.
  • the tool carrier 10 can be moved from the first position to the second position.
  • the tool carrier 10 is located between the two end positions.
  • the injection mold 30 is moved from the working position P1 to the set-up position P2 and at the same time the injection mold 30 'from the set-up position P2' in the working position P1 ⁇
  • the tool carrier 10 and / or the transport means 12 are provided with a motor.
  • the movement of the tool carrier 10 and thus the change of the injection molds 30, 30 'can be controlled automatically, without intervention by a technician is necessary.
  • the transport 12 is designed in this embodiment as two separate storage points.
  • the tool carrier 10 is movably mounted on the bearing points.
  • the storage is conveniently realized via a roller or plain bearings.
  • Technically more complex embodiments of the mounting of the tool carrier 10, such as an air cushion bearing or a magnetic bearing are conceivable.
  • FIG. 5 shows the tool carrier 10 in the second end position.
  • the tool carrier 10 has been moved so far through the working area 53 of the injection molding machine 50, that the injection mold 30 on the first tool holder 1 1 is now in set-up position P2.
  • the injection mold 30 'on the second tool holder 11' is now in the working position P1 / P1 'in the working region 53 of the injection molding machine 50.
  • the second mold half 32 ' is mechanically fastened to the tool holder 60 of the clamping unit 52.
  • This is in the illustrated embodiment means a permanent magnet to the closing unit 52 realized. This has already been described in detail in FIG.
  • the transport lock between the first mold half 31' and the second mold half 32 ' can be solved.
  • the mold halves 31 ', 32' can now be opened and closed by means of the closing unit 52.
  • FIG. 7 shows the injection molding machine 50 after the change from the first injection mold 30 to the second injection mold 30 '.
  • the closing unit 52 is opened again, whereby the mold halves 31 ', 32' are separated from each other and the injection molding process on the second injection mold 30 'can be started.
  • initiation of the injection molding process no longer requires any intervention by one person. All necessary for the injection molding process molding and production data are conveniently passed to the injection mold 30, 30 'of the injection molding machine 50.
  • FIG. 8 shows an injection molding machine 50 which has a reading device 55.
  • the reader 55 is provided near the work area 53.
  • the injection molds 30, 30 ' are expediently provided with a non-contact readable memory.
  • the memory is integrated in so-called RFID tags 34, 34 '.
  • the memory can be read out by means of the reader 55 on the injection molding machine 50.
  • the injection molding machine 50 automatically reads the production data of the new injection mold 30, 30' from the RFID tag 34, 34 'by means of the reader 55. This data can then be read directly into the control of the injection molding machine 50 and used for production.
  • the injection molding machine 50 is designed for this purpose with two sets of supply lines 54, 54 '.
  • both injection molds 30, 30' regardless of whether they are in working position P1, P1 'or in set-up position P2, P2', can be supplied independently of each other. This is mainly a supply of energy for preheating the injection molds 30, 30 'to call.
  • the injection molds 30, 30 must be brought to operating temperature and kept, it is expedient to preheat the mounted injection mold 30' already in the set-up position P2 'in order to reduce the set-up time. Once the injection molds 30, 30 'are changed, this time can be saved and the production process can be started directly.
  • the injection molds 30, 30 'through the supply lines 54, 54' are also supplied with electrical energy or signals for the production process.
  • FIG. 10 shows an injection molding machine 50 with a device according to the invention for changing tools, the tool carrier 10 being designed in two parts here.
  • a first part of the tool carrier 10 is as already known in the Work area 53 of the injection molding machine 50.
  • a second part 10 'of the tool carrier 10, which is located outside the working area 53, is connected to the first part by means of a hinge.
  • This embodiment of the tool carrier 10, 10 ' makes it possible to move the tool holder 11' located in the set-up position P2 'variably outside the injection molding machine 50. This gives a technician the ability to easily access the tool holder 11 'from all sides. The assembly of the injection mold 30 'is facilitated.
  • 1 1 shows a tool carrier 10, which is not elongated, but circular.
  • the tool carrier 10 is disposed around the clamping unit 52.
  • the movement of the tool carrier 10 is no longer linear, but circular.
  • a plurality of tool holders 1 1 can be provided here.
  • four tool holders 1 1, 1 1 ', 1 1 “, 1 1"' are provided on the tool carrier 10.
  • injection molding molds 30, 30 ', 30 ", 30"' are provided simultaneously on an injection molding machine 50.
  • the injection molding machine 50 can select the appropriate injection mold 30, 30 ', 30 ", 30"', change it automatically and start production.

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

Abstract

La présente invention concerne un dispositif conçu pour échanger des outils. Elle concerne plus particulièrement des moules de moulage par injection (30) qui doivent être changés sur une machine de moulage par injection (50). A cette fin, un porte-outil (10) conçu pour recevoir plusieurs moules de moulage par injection (30) est prévu. Grâce à la disposition selon cette invention du porte-outil (10) avec un moyen de transport correspondant (12) sur la machine de moulage par injection (50), il est possible de changer et de mettre en service des moules de moulage par injection (30) sans l'intervention d'un technicien.
PCT/DE2014/100318 2013-09-10 2014-09-03 Dispositif d'échange de moules de moulage par injection Ceased WO2015035980A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013109910.6 2013-09-10
DE102013109910.6A DE102013109910A1 (de) 2013-09-10 2013-09-10 Vorrichtung zum Wechsel von Spritzgussformen

Publications (1)

Publication Number Publication Date
WO2015035980A1 true WO2015035980A1 (fr) 2015-03-19

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Application Number Title Priority Date Filing Date
PCT/DE2014/100318 Ceased WO2015035980A1 (fr) 2013-09-10 2014-09-03 Dispositif d'échange de moules de moulage par injection

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DE (1) DE102013109910A1 (fr)
WO (1) WO2015035980A1 (fr)

Cited By (2)

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CN108556215A (zh) * 2018-04-02 2018-09-21 宁国市千洪电子有限公司 一种快速换模结构
CN113352553A (zh) * 2021-07-09 2021-09-07 弗兰科希管件系统(常熟)有限公司 便于更换模仁的注塑模具

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DE102015122324A1 (de) 2015-12-18 2017-06-22 Krones Ag Wechsel von Blasformen bei Blasformmaschinen
DE102016209583A1 (de) 2016-06-01 2017-12-21 Phoenix Contact Gmbh & Co. Kg Produktionsanlage zum Herstellen einer Vielzahl von Artikeln und Verfahren zum Steuern und/oder Überwachen der Produktionsanlage

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