DE2833578A1 - dimensionally precise deep-drawn moulding from resin-impregnated fleec - using combined male-female tool and punch with sectioned cutters to allow for heat-expansion differentials - Google Patents
dimensionally precise deep-drawn moulding from resin-impregnated fleec - using combined male-female tool and punch with sectioned cutters to allow for heat-expansion differentialsInfo
- Publication number
- DE2833578A1 DE2833578A1 DE19782833578 DE2833578A DE2833578A1 DE 2833578 A1 DE2833578 A1 DE 2833578A1 DE 19782833578 DE19782833578 DE 19782833578 DE 2833578 A DE2833578 A DE 2833578A DE 2833578 A1 DE2833578 A1 DE 2833578A1
- Authority
- DE
- Germany
- Prior art keywords
- tool
- heat
- impregnated
- allow
- fleec
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/32—Moulds having cutting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F2210/00—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
- B26F2210/06—Trimming plastic mouldings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Accessories And Tools For Shearing Machines (AREA)
Abstract
Description
Kombiniertes Preß- und StanzwerkzeugCombined pressing and punching tool
Die Erfindung betrifft ein kombiniertes Preß- und Stanzwerkzeug, z.B. aus Aluminium, zum Herstellen von Formteilen aus plattenförmigen Materialien, mit einer Patrize und einer Matrize, zwischen denen die Formteile unter Anwendung von Wärme verpreßt werden und von denen ein Teil mit Stanzwerkzeugen ausgerüstet ist, die mit Schneidkanten an dem anderen Teil zusammenwirken.The invention relates to a combined pressing and punching tool, e.g. made of aluminum, for the production of molded parts from plate-shaped materials, with a male and a female mold, between which the molded parts using Are heat-pressed and some of which are equipped with punching tools, which cooperate with cutting edges on the other part.
Es ist bekannt, Formteile aus plastisch verformbaren Werkstoffen, z.B. kunststoffgetränkten Faservliesen, mit Werkzeugen unter Anwendung von Wärme und Druck zu verpressen, die nicht nur die Formgebung sondern auch das Ausstanzen in einem Arbeitsgang durchführen können.It is known to make molded parts made of plastically deformable materials, e.g. plastic-impregnated fiber fleeces, with tools using heat and pressure to press, which is not only the shaping but also the punching can be carried out in one operation.
Hierzu ist an dem Rand eines der Werkzeugteile eine durchgehende Schneide befestigt, die mit einer Schneidkante in dem anderen Werkzeugteil zusammenarbeitet. Das Ansetzen der Schneiden an den Werkzeugkörper bietet keine Probleme solange die Werkzeugkörper für den Preßvorgang aus Stahl sind. Dann ist die Materialausdehnung der Stahlmesser gleich der des Werkzeugkörpers. Es können dann Messer zum Schneiden der Konturen oder Ausschnitte des Preßlings in beliebiger Länge und Form am Werkzeugkörper angebracht werden.For this purpose, there is a continuous cutting edge on the edge of one of the tool parts attached, which cooperates with a cutting edge in the other tool part. Attaching the cutting edges to the tool body does not pose any problems as long as the Tool bodies for the pressing process are made of steel. Then the material expansion the steel knife is the same as that of the tool body. You can then use knives for cutting the contours or sections of the compact in any length and shape on the tool body be attached.
Schwierigkeiten treten dann auf# wenn die Werkzeuge aus dem billigeren und leichter bearbeitbaren Aluminium hergestellt werden. Schneidwerkzeuge lassen sich dann nicht anbringen, weil Stahl und Aluminium ganz verschiedene Ausdehnungskoeffizienten besitzen. Die letzteren bewirken, daß unter dem Einfluß der hohen Preßtemperaturen sich Werkzeugkörper und Schneiden verschieden ausdehnen und dadurch die Schneiden deformiert werden.Difficulties arise # when the tools from the cheaper and more machinable aluminum. Let cutting tools then do not attach themselves, because steel and aluminum are completely different Expansion coefficient own. The latter cause that under the influence of high press temperatures The tool body and cutting edges expand differently and thereby the cutting edges be deformed.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Stanz-und Preßwerkzeug zu schaffen, bei dem das Stanzwerkzeug aus Stahl und das Preßwerkzeug aus Aluminium besteht.The invention is therefore based on the object of a punching and pressing tool to create, in which the punching tool made of steel and the pressing tool made of aluminum consists.
Diese Diese Aufgabe löst die Erfindung dadurch, daß das Stanzwerkzeug senkrecht zu seiner Schneide in mehrere Abschnitte unterteilt ist. Es hat sich herausgestellt daß, wenn man die Abmessungen der Abschnitte in Richtung der Schneidkante entsprechend wählt, die entsprechenden Zwischenräume dabei so gering sind, daß die in die Spalten zwischen den Abschnitten einfließenden Materialmengen nur verschwindend kleine Angüsse bilden, die sich leicht abstoßen lassen. Das eingangs gestellte Problem wird mit dieser Ausbildung des Preß- und Stanzwerkzeugs völlig gelöst, wodurch sich die Preßwerkzeuge aus wesentlich einfacherem Material in einfacherer Weise als aus StahL herstellen lassen.This object is achieved by the invention in that the punching tool is divided into several sections perpendicular to its cutting edge. It turned out that if you match the dimensions of the sections in the direction of the cutting edge selects, the corresponding gaps are so small that those in the columns Amounts of material flowing in between the sections only have vanishingly small sprues that are easy to repel. The problem posed at the beginning is with this training of the pressing and punching tool completely solved, whereby the pressing tools Manufacture from a much simpler material in a simpler way than from steel permit.
Anhand der Figur wird die Erfindung beispielsweise erläutert.The invention is explained by way of example with the aid of the figure.
Die Figur zeigt ein Stanz- und Preßwerkzeug ohne Bedienungsvorrichtung in einem schematischen Querschnitt und teilweise in perspektivischer#Ansicht.The figure shows a punching and pressing tool without an operating device in a schematic cross section and partially in a perspective view.
Eine Patrize 1 aus Aluminium bildet mit ihrer Unterseite 2 zusammen mit der Oberseite 3 einer Matrize 4, die ebenfalls aus Aluminium besteht, das Preßwerkzeug, welches das Formteil 5 preßt. Die Teile sind in auseinandergezogener Stellung dargestellt, um eine bessere tJbersichtlichkeit zu gewährleisten. Am Rand des Preßwerkzeugteils 1 sind Stanzwerkzeuge 6 befestigt, die gemaß der Erfindung aus einer Vielzahl von Abschnitten bestehen. Diese Stanzwerkzeuge 6 arbeiten mit Schneidkanten 7 auf dem Werkzeugteil 4 zusammen. Bei Anwendung von Wärme auf das Formteil 5 erlauben die Zwischenräume 8 zwischen den Stanzwerkzeugabschnitten eine entsprechende Ausdehung der aus Stahl bestehenden Stanzwerkzeuge 6. Hierdurch wird auf einfache Weise das Problem der unterschiedlichen Aus dehnung von verschiedenen Metallen in dem Werkzeug gelöst.A male mold 1 made of aluminum forms with its underside 2 together with the top 3 of a die 4, which is also made of aluminum, the pressing tool, which the molded part 5 presses. The parts are in apart position shown in order to ensure a better overview. At the edge of the press tool part 1 punching tools 6 are attached, according to the invention from a plurality of Sections exist. These punching tools 6 work with cutting edges 7 on the Tool part 4 together. When applying heat to the molded part 5, allow Interstices 8 between the punching tool sections have a corresponding expansion of the steel punching tools 6.This makes the Problem of different expansion of different metals in the tool solved.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782833578 DE2833578A1 (en) | 1978-07-31 | 1978-07-31 | dimensionally precise deep-drawn moulding from resin-impregnated fleec - using combined male-female tool and punch with sectioned cutters to allow for heat-expansion differentials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782833578 DE2833578A1 (en) | 1978-07-31 | 1978-07-31 | dimensionally precise deep-drawn moulding from resin-impregnated fleec - using combined male-female tool and punch with sectioned cutters to allow for heat-expansion differentials |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2833578A1 true DE2833578A1 (en) | 1980-02-14 |
Family
ID=6045868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782833578 Withdrawn DE2833578A1 (en) | 1978-07-31 | 1978-07-31 | dimensionally precise deep-drawn moulding from resin-impregnated fleec - using combined male-female tool and punch with sectioned cutters to allow for heat-expansion differentials |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2833578A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4692108A (en) * | 1985-07-31 | 1987-09-08 | G.O.R. Applicazioni Speciali S.P.A. | Mold for the covering and trimming of products of plastics material |
EP0265632A2 (en) * | 1986-10-28 | 1988-05-04 | EMPE-WERKE ERNST PELZ GmbH & CO. KG | Method and stamping tool for the manufacture of a veneer work piece with a cutout |
EP0325690A2 (en) * | 1988-01-27 | 1989-08-02 | EMPE-WERKE ERNST PELZ GmbH & CO. KG | Method and stamping tool for the manufacture of a veneer work piece with an outer veneer of wood |
US5092208A (en) * | 1990-12-07 | 1992-03-03 | Davidson Textron Inc. | Hot knife assembly |
US5451356A (en) * | 1994-03-24 | 1995-09-19 | Mobil Oil Corporation | Method of forming perforations in a structure during molding thereof |
US5520758A (en) * | 1992-04-29 | 1996-05-28 | Davidson Textron Inc. | Bumper preform and method of forming same |
-
1978
- 1978-07-31 DE DE19782833578 patent/DE2833578A1/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4692108A (en) * | 1985-07-31 | 1987-09-08 | G.O.R. Applicazioni Speciali S.P.A. | Mold for the covering and trimming of products of plastics material |
EP0265632A2 (en) * | 1986-10-28 | 1988-05-04 | EMPE-WERKE ERNST PELZ GmbH & CO. KG | Method and stamping tool for the manufacture of a veneer work piece with a cutout |
EP0265632A3 (en) * | 1986-10-28 | 1990-04-11 | Erpe - Ernst Pelz - Vertriebs Gmbh + Co. - Verwaltungs Kg | Method and stamping tool for the manufacture of a veneer work piece with a cutout |
EP0325690A2 (en) * | 1988-01-27 | 1989-08-02 | EMPE-WERKE ERNST PELZ GmbH & CO. KG | Method and stamping tool for the manufacture of a veneer work piece with an outer veneer of wood |
EP0325690A3 (en) * | 1988-01-27 | 1990-04-25 | Erpe - Ernst Pelz - Vertriebs Gmbh + Co. - Verwaltungs Kg | Method and stamping tool for the manufacture of a veneer work piece with an outer veneer of wood |
US5092208A (en) * | 1990-12-07 | 1992-03-03 | Davidson Textron Inc. | Hot knife assembly |
US5520758A (en) * | 1992-04-29 | 1996-05-28 | Davidson Textron Inc. | Bumper preform and method of forming same |
US5451356A (en) * | 1994-03-24 | 1995-09-19 | Mobil Oil Corporation | Method of forming perforations in a structure during molding thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAP | Request for examination filed | ||
OD | Request for examination | ||
8130 | Withdrawal |