DE2503528A1 - Air vents for moulds used for metals or plastics - where base contains stiffening ribs between vent holes or slots - Google Patents

Air vents for moulds used for metals or plastics - where base contains stiffening ribs between vent holes or slots

Info

Publication number
DE2503528A1
DE2503528A1 DE19752503528 DE2503528A DE2503528A1 DE 2503528 A1 DE2503528 A1 DE 2503528A1 DE 19752503528 DE19752503528 DE 19752503528 DE 2503528 A DE2503528 A DE 2503528A DE 2503528 A1 DE2503528 A1 DE 2503528A1
Authority
DE
Germany
Prior art keywords
slots
holes
stiffening ribs
nozzle
ribs
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Withdrawn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
DE19752503528
Other languages
German (de)
Inventor
Gottfried Zimmermann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19752503528 priority Critical patent/DE2503528A1/en
Publication of DE2503528A1 publication Critical patent/DE2503528A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/10Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C7/00Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/06Core boxes
    • B22C7/065Venting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/36Feeding the material to be shaped
    • B29C44/38Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Nozzles or vents for moulds employed in metal foundries or in the processing of plastics, are pot-shaped and each have a base-plate contg. the holes or slots, and reinforcing ribs rare provided on the inside surface of the base-plate the holes or slots being located in the depressions between the reinforcing ribs. The ribs may form a grid, the holes being located in the depressions in the grid, or alternatively, parallel rows of stiffening ribs may be used, the slots being situated between the parallel ribs. The thickness of the regions of the base-plate contg. the holes or slots pref. matches the dia. of the hole or the width of the slot. The holes or slots can be made in a single pressing operation, thereby reducing mfg. costs.

Description

Düse für Formen in der Metallgießerei und in der Kunststoffverarbeitung u. Nozzle for molds in metal foundries and in plastics processing u.

Die Erfindung betrifft eine topfartige Düse, die in ein Loch in der Wand einer Form eingesetzt dazu dient, daß bei der Herstellung des Formlings Luft entweichen kann und daß vorzugsweise in der Kunststoffverarbeitung schäumbarer Kunststoff in der Form bedampt werden kann.The invention relates to a pot-like nozzle which is inserted into a hole in the Wall of a mold used to ensure that air in the production of the molding can escape and that preferably in the plastics processing foamable plastic can be damned in the form.

Derartige Düsen tragen im Topfboden Schlitze oder löcher - hierunter sollen Löcher unterschiedlicher Herstellung und Form verstanden werden. Da diese Düsen bei einem Außendurchmesser von z. B. IOmm bis zu 6 oder 7 Schlitze oder bis zu 20 Löcher von einer lichten Weite bis herunter zu O,25mm haben, ist es verständlich, daß die Herstellung der löcher oder Schlitze Probleme aufwirft, obwohl sie keine enge Toleranzen haben. Die Schlitze lassen sich einigermaßen rationell herstellen, wobei allerdings die Präzision zu wünschen übrig läßt. Die Bohrungen dagegen erfordern einen hohen Zeitaufwand, so daß Düsen dieser Art wegen des damit verbundenen hohen Preises trotz besserer Eignung nur selten eingesetzt werden. Die Herstellung soll aber rationell sein, sodaß etwa ein einzelnes Fräsen der Schlitze oder Bohren der Löcher möglichst vermieden werden muß. Es kommt daher vorzugsweise nur ein gleichzeitiges Stanzen aller Schlitze oder Löcher in Frage, das aber bei einer relativ dicken Düsenplatte - eine Materialstärke von 2mm läßt aber ein loch von allenfalls 2mm Durchmesser zu - an das Wersczeug zu hohe Anforderungen an Härte und Stehvermögen stellt.Such nozzles have slots or holes in the bottom of the pot - below should be understood holes of different manufacture and shape. This one Nozzles with an outer diameter of z. B. IOmm up to 6 or 7 slots or up to have 20 holes with a clearance down to 0.25mm, it is understandable that the production of the holes or slots poses problems, although they are none have tight tolerances. The slots can be made reasonably efficiently, although the precision leaves something to be desired. The holes, however, require a lot of time, so that nozzles of this type because of the associated high In spite of their better suitability, they can rarely be used. The production is supposed to but be rational, so that a single milling of the slots or drilling of the Holes must be avoided as much as possible. There is therefore preferably only one simultaneous Punching all slots or holes in question, but with a relatively thick nozzle plate - a material thickness of 2mm leaves a hole with a diameter of 2mm at most too - on the tool too high demands on hardness and Stamina represents.

uer Erfindung liegt die Aufgabe zu Grunde eine Düse zu entwickeln, deren Schlitze oder Löcher rationell mit möglichst einfachem -8ierkzeug insbesondere durch Stanzen aber trotzdem mit der erforderlichen @razion hergestellt werden können.The invention is based on the task of developing a nozzle, their slots or holes rationally with the simplest possible -8ierkzeug in particular but can still be produced by punching with the required @razion.

Nach der Erfindung wird die Aufgabe dadurch gelöst, daß die die Schlitze oder die Löcher aufnehmende Bodenplatte der topfartigen Düse auf ihrer Innenseite Versteifungsrippen trägt und daß die Schlitze oder Löcher in den Vertiefungen zwischen den Rippen angebracht sind. Bei Benutzung von Dusenlöchern kann man die Versteifungsrippen in einem Vierecksnatz, z.B. in einem Kautenmuster, anordnen und die Löcher in deren Vertiefungen, die Trichter- und Pyramidenform haben, einstanzen. An den Stellen, an denen die Schlitze oder Löcher angebracht - eingestanzt - werden, sollte die Düsenplatte eine Dicke von möglichst O,3rnm haben. Bei Düsenschlitzen wird man zweckmäßig die Versteifungsrippen in einer parallelen Gitterschar anordnen.According to the invention, the object is achieved in that the the slots or the hole-receiving bottom plate of the pot-like nozzle on its inside Stiffening ribs and that the slots or holes in the recesses between attached to the ribs. When using shower holes you can use the stiffening ribs in a square, e.g. in a chewing pattern, and the holes in their Punch wells in the shape of a funnel and pyramid. In the places where the slots or holes are made - punched - should be the The nozzle plate should have a thickness of 0.3 mm if possible. With nozzle slots one becomes expedient arrange the stiffening ribs in a parallel grid.

Diese Düsenform kann leicht durch Spritzen, Fressen oder im Druckgußverfahren aus l!eetall oder Kunststoff vorgefertigt werden.This nozzle shape can easily be achieved by injection molding, milling or die-casting can be prefabricated from l! eetall or plastic.

In der Zeichnung ist die Erfindung in zwei Ausführungsbeispielen dargestellt und zwar zeigt: Fig. 1 eine Düse in Ansicht, Fig. 2 einen Blickt auf die Innenseite einer Düsenplatte mit rautenartigem Muster der Versteifungsrippen und mit löchern, Fig. 3 einen Blick auf die Innenseite einer Düseni#atte mit einer parallelen Schar von Versteifungsrippen und Schlitzen, Fig. 4 einen Schnitt durch die Däsenplatte nach Figur 3 entlang der Linie IV-IV.In the drawing, the invention is shown in two exemplary embodiments and specifically shows: FIG. 1 a view of a nozzle, FIG. 2 a view of the inside a nozzle plate with a diamond-like pattern of the stiffening ribs and with holes, Fig. 3 a view of the inside of a nozzle nozzle with a parallel array of Stiffening ribs and slots, Fig. 4 shows a section through the nozzle plate Figure 3 along the line IV-IV.

Die Bodenplatte 2 einer Düse 1 ist auf ihrer Innenseite mit in einem Rautenmuster angeordneten Versteifungsrippen 3 versehen, in deren Vertiefungen die Löcher 4 angebracht sind.The bottom plate 2 of a nozzle 1 is on its inside with in one Provided diamond pattern arranged stiffening ribs 3, in the wells Holes 4 are attached.

Bei dem Beispiel nach den Figuren 3 und 4 trägt die Bodenplatte 12 eine parallele Schar von Varsteifungsrippen 13, zwischen denen die Schlitze 14 angebracht sind.In the example according to FIGS. 3 and 4, the base plate 12 carries a parallel set of stiffening ribs 13, between which the slots 14 are attached are.

Claims (4)

AnsprücheExpectations 1. Düsen für Formen in der Metallgießerei und in der Kunststoffverarbeitung, dadurch gelöst, daß die Schlitze oder die Löcher aufnehmende Bodrnplatte der topfartigen Düse (1) auf ihrer Innenseite Versteifungsrippen (3 bzw. 13) trägt und daß die Schlitze (14) oder Löcher (4) in den Vertiefungen zwischen den Versteifungsrippen angebracht sind.1. Nozzles for molds in metal foundries and plastics processing, solved in that the slots or the holes receiving the bottom plate of the pot-like The nozzle (1) has stiffening ribs (3 or 13) on its inside and that the slots (14) or holes (4) made in the recesses between the stiffening ribs are. 2. Düse nach Anspruch 1, dadurch gekennzeichnet, daß die Versteifungsrippen (3) in einem Vierecknetz angeordnet und die Düsenlöcher (4) in deren Vertiefungen angebracht sind.2. Nozzle according to claim 1, characterized in that the stiffening ribs (3) arranged in a square network and the nozzle holes (4) in their depressions are appropriate. 3. Düse nach Anspruch 1, dadurch gekennzeichnet, daß die Versteifungs rippen als eine parallele Gitterschar (13 angeordnet sind, zwischen den die Schlitze (14) angebracht sind.3. Nozzle according to claim 1, characterized in that the stiffening ribs are arranged as a parallel grid share (13, between which the slots (14) are attached. 4. Düse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Stärke der Bodenplatte (2 bzw. 12) an den Stellen, an denen die Schlitze (14) oder scher (4) angebracht sind, etwa der Breite der Schlitze oder dem Durchmesser der Löcher entspricht.4. Nozzle according to one of claims 1 to 3, characterized in that that the thickness of the base plate (2 or 12) at the points where the slots (14) or shear (4) are attached, approximately the width of the slots or the diameter corresponds to the holes.
DE19752503528 1975-01-29 1975-01-29 Air vents for moulds used for metals or plastics - where base contains stiffening ribs between vent holes or slots Withdrawn DE2503528A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752503528 DE2503528A1 (en) 1975-01-29 1975-01-29 Air vents for moulds used for metals or plastics - where base contains stiffening ribs between vent holes or slots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752503528 DE2503528A1 (en) 1975-01-29 1975-01-29 Air vents for moulds used for metals or plastics - where base contains stiffening ribs between vent holes or slots

Publications (1)

Publication Number Publication Date
DE2503528A1 true DE2503528A1 (en) 1976-08-05

Family

ID=5937551

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752503528 Withdrawn DE2503528A1 (en) 1975-01-29 1975-01-29 Air vents for moulds used for metals or plastics - where base contains stiffening ribs between vent holes or slots

Country Status (1)

Country Link
DE (1) DE2503528A1 (en)

Similar Documents

Publication Publication Date Title
DE2823182A1 (en) Plastic cheese mould - with internal grooves and whey discharge through holes at their bottom (NL 5.12.78)
DE2948643C2 (en)
DE2503528A1 (en) Air vents for moulds used for metals or plastics - where base contains stiffening ribs between vent holes or slots
DE3133792A1 (en) Device for the continuous pressing of a mat of material in the course of producing chipboards, fibreboards and similar pressed material
DE926362C (en) Gaerm well made of solid polyurethane foam
EP0019074B1 (en) Nozzle for ventilating, aerating or charging moulds
EP0115552A1 (en) Apparatus for manufacturing moulded articles
DE2163855A1 (en) Method and device for producing a base for encasing an electrical component, as well as a base for encasing an electrical component
DE2520852A1 (en) Cutting foamed plates of synthetic resin (polystyrene) - using electrically heated blades arranged to suit profiles being cut
DE429597C (en) Impact machine for the production of roof tiles made of concrete or the like.
EP1199019B1 (en) Bottom reinforced bath tub
DE1784321C (en) Ceramic decorative panel
DE965602C (en) Multi-part press or injection mold for the production of hollow moldings that are open on one side
DE649374C (en) Patrix
DE1467728A1 (en) Method and device for punching a bar of soap
EP1704981A1 (en) Method and apparatus for manufacturing building panels
DE511786C (en) Method for one-sided closing of hollow stones provided with projections or webs and cut off by the extrusion press
DE71635C (en) Methods and devices for punching out flat glass objects
DE1228980B (en) Method for producing perforated bricks and device for carrying out the method
DE7125339U (en) Tool for the production of flat structures made of synthetic resin
DE1778371C (en) Device for the production of objects from fibrous blanks which are impregnated with a thermosetting plastic and the length of which is much greater than its width
DE1944498C3 (en) Multi-part mold for producing a plastic clock face and method for producing openings in this form
DE2126449A1 (en) Ceramic blank drying nozzle - with perforated outlet plate
AT322775B (en) MADE OF PLASTIC INJECTED TOP BOARD
DE1162252B (en) Chamber wall with a chrome coating for casting molds in plaster molding machines for the production of plasterboard

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8130 Withdrawal