DE4014525A1 - Forming expanded grid angle section in PVC - has form tools mounted on endless chains to heat set required shape - Google Patents
Forming expanded grid angle section in PVC - has form tools mounted on endless chains to heat set required shapeInfo
- Publication number
- DE4014525A1 DE4014525A1 DE19904014525 DE4014525A DE4014525A1 DE 4014525 A1 DE4014525 A1 DE 4014525A1 DE 19904014525 DE19904014525 DE 19904014525 DE 4014525 A DE4014525 A DE 4014525A DE 4014525 A1 DE4014525 A1 DE 4014525A1
- Authority
- DE
- Germany
- Prior art keywords
- expanded metal
- prism members
- pvc
- metal strip
- angle
- 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
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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
- B29C53/043—Bending or folding of plates or sheets using rolls or endless belts
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/08—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D28/00—Producing nets or the like, e.g. meshes, lattices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/737—Articles provided with holes, e.g. grids, sieves
- B29L2031/7374—Slotted
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Form gebung eines Streckgitterbandes aus weichplastischem PVC-Material zu einem Winkelprofil.The invention relates to a method and an apparatus for molding a stretched mesh tape made of soft plastic PVC material to an angle profile.
Das vorgegebene Verfahren und die Formgebungseinrichtung sollen einerseits eine unmittelbar an die Streckung erfolgende mittige Ab winkelung ermöglichen, andererseits auch in Dicke und Schenkel länge des Streckgitterbandes Maßhaltigkeit sicherstellen.The predetermined method and the shaping device should on the one hand, a central ab that occurs directly at the extension enable angulation, on the other hand also in thickness and legs Ensure the length of the expanded metal tape.
Die Offenlegungsschrift Nr. 25 18 456 zeigt ein Verfahren mit gegen einander laufenden Kämmen zur Herstellung beidseitig gewellter Bahnen.Laid-Open No. 25 18 456 shows a method with against combs running to produce corrugated on both sides Tracks.
Aus der Patentschrift Nr. 37 42 319 ist ein Verfahren bekannt, bei welchem mittels geschränkter Bänder und dagegen wirkender Form gebungsschienen ein Streckgitterband in Winkelform gebracht wer den soll. Es hat sich aber gezeigt, daß dieses Verfahren nur Winkelprofile mit scharfer Außenkante ermöglicht, der Anwendungszweck aber ab gerundete Außenkanten erfordert. Die bei der Streckung entstandenen Aufwölbungen der Stege in die 3. Dimension mit einem Band nicht plan gedrückt und das Streckgitterband nicht maßhaltig hergestellt werden kann. Außerdem hat sich gezeigt, daß das Streckgitterprofil über eine längere Distanz in abgewinkelter Form gehalten werden muß, so, daß sich das Material abkühlen kann und die Form fixiert ist. Auch ist der Abstand zwischen Streckung und Abwinkelung zu groß, so daß wieder Wärme zugeführt werden muß. Obendrein ist der Bandtransport eine äußerst labile und aufwendige Vorrichtung die konstante Ergebnisse nicht zuläßt.From the patent no. 37 42 319 a method is known for which by means of set bands and counteracting form an expanded metal strip into an angular shape that should. However, it has been shown that this method only uses angle profiles with a sharp outer edge, but the application is possible rounded outer edges required. The ones created during stretching The webs do not bulge into the third dimension with a band pressed flat and the expanded metal tape was not made to size can be. It has also been shown that the expanded metal profile are held in an angled form over a longer distance must, so that the material can cool down and fix the shape is. The distance between extension and bend is also too large, so that heat must be added again. On top of that is the belt transport is an extremely unstable and complex device that doesn't allow constant results.
Der Erfindung liegt die Aufgabe zugrunde diese Mängel zu besei tigen, um auf einfachere und sicherere Art das geforderte Streck gitter-Winkelprofil zu erhalten.The invention has for its object to overcome these deficiencies to make the required stretch easier and safer to obtain a grid angle profile.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das aus thermoplastischem Material bestehende Streckgitterband unmittelbar nach der Streckung in noch weichplastischem Zustand mittels Füh rungen zwischen von oben und unten ineinander greifender Prismen glieder geführt und von diesen in rechtwinklige Form gebracht, kalibriert und weitertransportiert wird, bis sich das Material abge kühlt hat und die vorgegebene Form fixiert ist. Außerdem soll er reicht werden, daß die bei der Reckung entstandenen Aufwölbungen der Stege in die 3. Dimension wieder plan gedrückt werden. Die genaue Maßhaltigkeit wird durch ein oberes bzw. unteres Führungs profil erreicht, welche, unabhängig voneinander, in horizontaler und vertikaler Richtung verstellbar sind. Dadurch kann sowohl die Breite des Streckgitter-Winkelprofils, als auch eine genau gleichmä ßige Dicke der beiden Schenkel eingehalten werden. Mit einer Klemm vorrichtung können diese Führungsprofile einschließlich den darauf gleitenden Prismengliederketten gegeneinander verspannt und justiert werden, so daß am Ende der Formgebungsvorrichtung ein winkelrech tes, maßhaltiges Streckgitter-Winkelprofil austritt.This object is achieved in that the thermoplastic material existing expanded metal tape immediately after stretching in a still soft plastic state using Füh between prisms interlocking from above and below limbs guided and brought into a rectangular shape by them, is calibrated and transported until the material is removed has cooled and the specified shape is fixed. He should also be enough that the bulges created during stretching the bars in the 3rd dimension are pressed flat again. The precise dimensional accuracy is ensured by an upper or lower guide profile achieved, which, independently of one another, in horizontal and adjustable in the vertical direction. This allows both Width of the expanded metal angle profile, as well as one exactly ßige thickness of the two legs are observed. With a clamp these guide profiles including the one on them sliding prism link chains braced against each other and adjusted be so that at the end of the shaping device an angular rake tes, dimensionally accurate expanded mesh angle profile emerges.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dar gestellt und im folgenden näher beschrieben.An embodiment of the invention is shown in the drawings provided and described in more detail below.
Fig. 1 zeigt eine schematische Darstellung der Formgebungs vorrichtung zur Abwinkelung eines Streckgitterbandes. Fig. 1 shows a schematic representation of the shaping device for bending an expanded metal strip.
Fig. 2 zeigt einen schematischen Querschnitt der Formgebungs vorrichtung. Fig. 2 shows a schematic cross section of the shaping device.
Wie aus Fig. 1 ersichtlich, wird das weichplastische Streckgitter band 1 unmittelbar nach dem hier nicht dargestellten Streckvorgang durch zwei dachförmig ausgebildete, horizontal verstellbare Führun gen 2 der Formgebungsvorrichtung in angewinkelter Form zugeführt. As can be seen from Fig. 1, the soft plastic expanded metal belt 1 is supplied immediately after the stretching process, not shown here, by two roof-shaped, horizontally adjustable guides 2 of the shaping device in an angled form.
Die auf je einer oben bzw. unten umlaufenden Kette angebrachten, winkelförmig ineinander greifenden Prismenglieder 3 und 4 laufen kraftschlüssig mit dem Streckgitterband 1 zusammen und winkeln dieses zu einem rechtwinklig, gleichschenkligen Streckgitterprofil ab. Dabei werden die bei der Streckung entstandenen Aufwölbungen der Stege plan gedrückt. Das mit einer Klemmvorrichtung 6 maßge nau fixierte Material wird durch die Prismengliederketten weiter transportiert bis es sich abgekühlt hat und in Form eines Streck gitter-Winkelprofils 7 am Ende der Formgebungsvorrichtung aus tritt. Anschließend öffnen sich die Prismenglieder 3 und 4 wieder und werden mittels der Ketten rückgeführt.The prismatic links 3 and 4, which are attached to a chain running around the top and bottom, run together non-positively with the expanded metal tape 1 and angled it to form a right-angled, isosceles expanded metal profile. The bulges of the webs that are created during stretching are pressed flat. The material with a clamping device 6 precisely fixed is transported further through the prism link chains until it has cooled and comes out in the form of an expanded grating angle profile 7 at the end of the shaping device. Then the prism members 3 and 4 open again and are returned by means of the chains.
Wie aus Fig. 2 ersichtlich, können die auf je einer oberen bzw. unteren Führung 5 gleitenden Prismengliederketten, unabhängig voneinander, in horizontaler und vertikaler Richtung durch die Führungsprofile 5 verstellt werden. Durch eine Klemmvorrichtung 6 können die Führungsprofile 5 mit den darauf gleitenden Prismen gliederketten gegeneinander verspannt und justiert werden, so daß stetige Maßhaltigkeit gewährleistet ist und das Streckgitterband 1 am Ende der Formgebungsvorrichtung als Streckgitter-Winkelprofil 7 austritt.As seen from Fig. 2, can be adjusted in the horizontal and vertical direction by the guide profiles 5, 5 sliding Prism link chains on either the upper or lower guide, independently of each other. By means of a clamping device 6 , the guide profiles 5 with the prisms sliding on them link chains can be clamped against one another and adjusted so that constant dimensional accuracy is ensured and the expanded metal strip 1 emerges at the end of the shaping device as an expanded metal angular profile 7 .
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904014525 DE4014525A1 (en) | 1990-05-07 | 1990-05-07 | Forming expanded grid angle section in PVC - has form tools mounted on endless chains to heat set required shape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904014525 DE4014525A1 (en) | 1990-05-07 | 1990-05-07 | Forming expanded grid angle section in PVC - has form tools mounted on endless chains to heat set required shape |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4014525A1 true DE4014525A1 (en) | 1991-11-14 |
Family
ID=6405826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19904014525 Ceased DE4014525A1 (en) | 1990-05-07 | 1990-05-07 | Forming expanded grid angle section in PVC - has form tools mounted on endless chains to heat set required shape |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4014525A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3151354A (en) * | 1961-09-18 | 1964-10-06 | Universal Moulded Fiber Glass | Apparatus for making elongated shapes composed of fiber reinforced plastics |
GB2111894A (en) * | 1981-11-30 | 1983-07-13 | Leslie Harold Edward Bailey | Edge protector manufacture |
DE3742319C2 (en) * | 1987-12-14 | 1990-05-31 | Hohloch, Herbert, Dipl.-Ing., 7410 Reutlingen, De | |
DE3303256C2 (en) * | 1983-02-01 | 1990-05-31 | Synteen Gewebe Technik Gmbh, 7895 Klettgau, De |
-
1990
- 1990-05-07 DE DE19904014525 patent/DE4014525A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3151354A (en) * | 1961-09-18 | 1964-10-06 | Universal Moulded Fiber Glass | Apparatus for making elongated shapes composed of fiber reinforced plastics |
GB2111894A (en) * | 1981-11-30 | 1983-07-13 | Leslie Harold Edward Bailey | Edge protector manufacture |
DE3303256C2 (en) * | 1983-02-01 | 1990-05-31 | Synteen Gewebe Technik Gmbh, 7895 Klettgau, De | |
DE3742319C2 (en) * | 1987-12-14 | 1990-05-31 | Hohloch, Herbert, Dipl.-Ing., 7410 Reutlingen, De |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |