WO2008122275A1 - Moule de moulage à jonction - Google Patents

Moule de moulage à jonction Download PDF

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Publication number
WO2008122275A1
WO2008122275A1 PCT/DE2008/000575 DE2008000575W WO2008122275A1 WO 2008122275 A1 WO2008122275 A1 WO 2008122275A1 DE 2008000575 W DE2008000575 W DE 2008000575W WO 2008122275 A1 WO2008122275 A1 WO 2008122275A1
Authority
WO
WIPO (PCT)
Prior art keywords
casting
mold
negative single
connecting channel
channel
Prior art date
Application number
PCT/DE2008/000575
Other languages
German (de)
English (en)
Inventor
Hermann Rausch
Original Assignee
Hermann Rausch
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 Hermann Rausch filed Critical Hermann Rausch
Priority to EP08734462A priority Critical patent/EP2134524A1/fr
Priority to DE112008001534T priority patent/DE112008001534A5/de
Publication of WO2008122275A1 publication Critical patent/WO2008122275A1/fr

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
    • B29C45/0003—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of successively moulded portions rigidly joined to each other

Definitions

  • the invention relates to a line-up casting mold for the sequential production of one-piece "endless elements" of multiple juxtaposed, identical castings, consisting of at least two negative single molds complementary to the casting, which are each connected to each other by a connecting channel for forming a connecting web ,
  • endless elements are used in great numbers, including profiles that can be produced almost endlessly “by the meter” - for example, by extrusion, elements that can be aligned without restriction, such as drive chains, and material feeds to automatic production machines in which identical elements are applied to a carrier tape and fastened there by gluing, riveting, welding or other technology.
  • Klipse-, dowels, spacer plates or brackets together with a connecting bar between two small parts of the same material cast, pressed or cut, are introduced in the next step in the processing machine and there divided into the small parts to be used and the disposal webs to be disposed of handling equipment ,
  • these multiple strips of material usually only a limited length, which is limited by the size of the manufacturing form. This results in relatively small units that require frequent changes in the material supply.
  • DE 3640984 describes one of the many methods with which regularly recurring castings are sprayed around a carrier tape. Characteristic is the carrier tape, which must be supplied from the outside, so for a principle endless part so is always new to enforce.
  • This joint is not only an additional thickening, but also a production engineering handicap.
  • Another disadvantage is that the carrier tape within the processing machine can only be severed with some effort, since it must be so strong that it moves all the molded parts without tearing the carrier tape, but has no predetermined breaking points predetermined by notches or other constrictions.
  • the object of the invention is to provide a device and to define a method by which the production of a continuous material strip with regularly recurring castings from a single, homogeneous material with only a single mold according to the usual methods for casting, such as injection molding, is possible.
  • the method should be suitable for plastic as well as for all other materials that shrink after the first curing in the form not at all or only very slightly. It should be possible to use materials which are either thermoplastically deformable, ie brought into a liquid physical state by repeated heating, or of materials which harden irreversibly after curing, for example two-component plastics.
  • the invention proposes a Anreihgussform, consisting of at least two negative single forms, which are connected by a respective connecting channel for forming a respective connecting web, characterized in that at one of both external negative individual forms a second, identical connecting channel is attached, wherein the respective starting point and the respective orientation of the two connecting channels for both outer negative single forms is identical and the second connecting channel is open to the outside at least on its side opposite the starting point and there is closed by a closure.
  • thermoplastics ie thermoplastics, multi-component plastics, metals or composite materials, such as a mixture of wood chips and plastic.
  • metals or composite materials such as a mixture of wood chips and plastic.
  • the basic idea of this invention is that the entire casting element consists of at least two identical castings, which are connected to one another by a connecting web.
  • the mold for each casting is referred to as a negative single mold.
  • a line-up according to the invention thus at least two negative single forms are included. These two negative single forms must be connected to each other with a connecting channel be connected, which serves to form the connecting web between the two castings.
  • the basic idea of the invention will be explained with reference to this exemplary embodiment of the line-up casting mold with the minimum number of two negative single forms.
  • a second connecting channel is set, which is identical to the first, inner connecting channel, with “identical” here not only a same shape is meant, but also the same starting point at the This second connecting channel leads to the outside of the box casting mold and is opened there, wherein it is important that it is in fact absolutely identical to the inner connecting channel, except that an extension of the channel is possible. that the second connection channel is shorter than its counterpart inside.
  • the proposed method consists of three steps.
  • the line-up casting mold is closed and poured out with a closure in the connecting channel leading to the outside.
  • the resulting cast element is removed and offset by a cast element inserted back into the mold.
  • the closure must be removed, because only then the outwardly leading connecting channel provides space for the connecting web, which has previously been created inside the Einreihgussform.
  • the connecting web formed on the inside seals the outwardly pointing connecting channel.
  • one of the two negative single molds is filled with a finished cast part - only the one is free inner connecting channel and the adjacent negative single form.
  • a casting element is created, which now consists of three identical cast parts, which are each connected to one another by connecting webs. In turn, this part can be inserted into the line-up casting mold by one casting so that the next, the fourth casting can be molded.
  • Another possible embodiment relates to endless elements in which the connecting webs between the individual cast elements count to the desired shape and / or functionality and are therefore used with.
  • Conceivable applications would be picture frames and stucco moldings with regularly recurring, plastic decorative elements, toothed racks, cam strips or handles.
  • the "endless element" for use has to be bent in some places, for which notches can be provided which serve as nominal knee points.
  • the use case would be edge strips in the housing area, which should cover a floor or ceiling covering at the edge.
  • the material should be chosen so that it despite the de-. formation still retains a stable connection at the kinks. Then a circular arc segment can be approximated by polygons.
  • Another alternative is that the material is so flexible that it is continuously bendable.
  • the line-up casting mold according to the invention will contain not only the negative single molds for two castings, but additional cavities (sometimes also called mold cavities) which will be between those negative single molds equipped with two connecting passages are inserted in the inner connecting channel.
  • additional cavities can be identical to the outer negative single molds and also the connection channels can be made identical in terms of shape and orientation.
  • the additional cavities inserted between the outer negative single molds are identical negative individual molds, but are connected to one another by other and / or curved connecting webs. As a result, the manufacturer •
  • both outer negative individual shapes of the line-up mold have an outwardly open connection channel.
  • both the left and the right negative mold are equipped with the two end castings of the casting element which has been preformed so far.
  • the connecting channel is then poured out and thereby connects the two terminal castings of the cast element.
  • the invention proposes that the connecting channel, which is open towards the outside, can either be heated or cooled.
  • the connecting channel open to the outside can be optimally poured out.
  • this connecting web is well cooled so that it is so stable that it attached to the outwardly projecting casting and all other connecting webs and castings who can hang on it can safely wear.
  • the freshly cast connecting web connects at the end of the connecting channel with the inserted in the negative single mold casting by the partial re-liquefaction of the otherwise finished molded casting, which a firm and strong connection between the new connecting web and the old, already cast in the previous step casting arises.
  • the invention proposes that the casting provided with only a single connecting web at its later point of contact with the second connecting web to be added in the next step, a connecting blind hole is formed.
  • the liquid material can flow into this connection blind hole, thereby forming an intimate connection of the connecting web with the casting.
  • a two-part insert mold is known in the art.
  • FIG. 2 as in FIG. 1, but with a cast element which has already been cast and has been relocated around a casting
  • FIG. 1 shows the lower half of a casting mold for a cast element, which in this example consists of two, approximately cylindrical, cast parts 1, which are connected to one another via a connecting web 5.
  • This casting is not shown in FIG. 1, but only the respective lower half of the negative single mold 11 complementary to the cast part and the connecting duct 2 complementary to the cast web.
  • the negative single mold 11 is shown, which is only connected to a single connecting duct 2.
  • an identical negative single-form 11 can be seen, which is connected to a connecting channel 2 on both sides. In this case, the right to be recognized connecting channel 2 is brought up to the outer edge of the Anreihgussform.
  • the outwardly pointing connecting channel 2 shown on the right is absolutely identical to the inner connecting channel 2.
  • the outwardly facing connecting channel 2 is closed by a closure 3. This configuration is needed for the first step of the casting process, where the initial part of the "endless element" is made.
  • a casting 1 is used, which also completely fills this negative single mold 11 and thereby prevents the further penetration of casting material from the connecting channel 2.
  • the front portion is pulled out in the first step and moved in the second step, the rear portion with the barb forward and only then pulled laterally from the casting 11.
  • a cast part 1 with a connection blind hole 4 can be seen in the middle of the picture.
  • the thickening 41 is located at the inner end of the connection bag hole 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un moule de moulage à jonction permettant la fabrication séquentielle d'un élément sans fin monobloc à partir de plusieurs pièces moulées identiques jointes les unes aux autres, lequel moule est composé d'au moins deux moules négatifs individuels complémentaires de la pièce moulée, reliés l'un à l'autre par l'intermédiaire d'un canal de jonction servant à former une barre de jonction. Selon l'invention, un second canal de jonction identique est ajouté à un des deux moules négatifs individuels extérieurs, le point de départ et l'orientation des deux canaux de jonction étant identiques pour les deux moules négatifs individuels extérieurs, le second canal de jonction étant ouvert vers l'extérieur au moins sur son côté opposé au point de départ et pouvant être obturé à cet endroit par un élément d'obturation.
PCT/DE2008/000575 2007-04-07 2008-04-04 Moule de moulage à jonction WO2008122275A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08734462A EP2134524A1 (fr) 2007-04-07 2008-04-04 Moule de moulage à jonction
DE112008001534T DE112008001534A5 (de) 2007-04-07 2008-04-04 Anreihgussform

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710016576 DE102007016576A1 (de) 2007-04-07 2007-04-07 Anreihgussform
DE102007016576.7 2007-04-07

Publications (1)

Publication Number Publication Date
WO2008122275A1 true WO2008122275A1 (fr) 2008-10-16

Family

ID=39736235

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/000575 WO2008122275A1 (fr) 2007-04-07 2008-04-04 Moule de moulage à jonction

Country Status (3)

Country Link
EP (1) EP2134524A1 (fr)
DE (2) DE102007016576A1 (fr)
WO (1) WO2008122275A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010019943A1 (de) * 2010-05-08 2011-11-10 Aktiebolaget Skf Verfahren zum Herstellen eines Wälzlagerkäfigs und Wälzlagerkäfig
CN113426958A (zh) * 2021-07-06 2021-09-24 东山欧凯金属塑料制品有限公司 一种高强度耐腐蚀铅坠挤压成型装置和成型工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2938622A1 (de) * 1979-09-25 1981-04-09 Hermet AG, Ostermundingen Herstellverfahren zur produktion von formteilen aus kunststoff in mehrteiligen spritzgusswerkzeugen
FR2561164A1 (fr) * 1984-03-16 1985-09-20 Ind Plastiq Lyonnai Exploit Procede de moulage pas a pas d'une piece allongee a saillies laterales et moule pour sa mise en oeuvre
JPH01222912A (ja) * 1988-03-02 1989-09-06 Canon Inc 物品供給材成形方法
EP0826475A2 (fr) * 1996-08-30 1998-03-04 Berg Electronics Manufacturing B.V. Bande continue en matière plastique utilisée dans la fabrication de boítiers isolants dans des connecteurs électriques

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640984A1 (de) 1986-12-01 1988-06-16 Hellermann Gmbh P Verfahren und vorrichtung zum herstellen einer quasi endlosen reihe von einem traegerband gehaltenen formlingen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2938622A1 (de) * 1979-09-25 1981-04-09 Hermet AG, Ostermundingen Herstellverfahren zur produktion von formteilen aus kunststoff in mehrteiligen spritzgusswerkzeugen
FR2561164A1 (fr) * 1984-03-16 1985-09-20 Ind Plastiq Lyonnai Exploit Procede de moulage pas a pas d'une piece allongee a saillies laterales et moule pour sa mise en oeuvre
JPH01222912A (ja) * 1988-03-02 1989-09-06 Canon Inc 物品供給材成形方法
EP0826475A2 (fr) * 1996-08-30 1998-03-04 Berg Electronics Manufacturing B.V. Bande continue en matière plastique utilisée dans la fabrication de boítiers isolants dans des connecteurs électriques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010019943A1 (de) * 2010-05-08 2011-11-10 Aktiebolaget Skf Verfahren zum Herstellen eines Wälzlagerkäfigs und Wälzlagerkäfig
DE102010019943B4 (de) * 2010-05-08 2013-12-05 Aktiebolaget Skf Verfahren zum Herstellen eines Wälzlagerkäfigs und Wälzlagerkäfig
CN113426958A (zh) * 2021-07-06 2021-09-24 东山欧凯金属塑料制品有限公司 一种高强度耐腐蚀铅坠挤压成型装置和成型工艺

Also Published As

Publication number Publication date
DE102007016576A1 (de) 2008-10-09
DE112008001534A5 (de) 2010-03-18
EP2134524A1 (fr) 2009-12-23

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