DE2919697A1 - Needle drive unit for needle printer - includes six armed spring under head of armature, resting on spacer ring - Google Patents

Needle drive unit for needle printer - includes six armed spring under head of armature, resting on spacer ring

Info

Publication number
DE2919697A1
DE2919697A1 DE19792919697 DE2919697A DE2919697A1 DE 2919697 A1 DE2919697 A1 DE 2919697A1 DE 19792919697 DE19792919697 DE 19792919697 DE 2919697 A DE2919697 A DE 2919697A DE 2919697 A1 DE2919697 A1 DE 2919697A1
Authority
DE
Germany
Prior art keywords
armature
needle
arms
support ring
spring
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Withdrawn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
DE19792919697
Other languages
German (de)
Inventor
Walter Dipl Ing Mandel
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.)
Robotron VEB
Original Assignee
Robotron VEB
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 Robotron VEB filed Critical Robotron VEB
Publication of DE2919697A1 publication Critical patent/DE2919697A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/27—Actuators for print wires
    • B41J2/285—Actuators for print wires of plunger type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/32—Belleville-type springs
    • F16F1/324—Belleville-type springs characterised by having tongues or arms directed in a generally radial direction, i.e. diaphragm-type springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Impact Printers (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

The moving armature drive unit for the needle of a needle printer includes a damping system with a return spring under the head of the armature. This spring (1) has a set of six equally spaced arms (3) radiating outwards from a hub with a hole (2) through the middle for the stem of the armature. The head of the armature rests on this hub. The ends of the arms rest on the edge of a supporting ring (4) on the closed top of the coil housing. These arms slope inwards gradually towards the outside, then slope outwards again sharply to form the contact parts for the ring.

Description

"Federelement für Tauchankermagneten""Spring element for plunger magnets"

Die Anwendung der Erfindung erfolgt vorzugsweise bei Tauchankermagneten in der Drahtdrucktechnik, wo kurzhübige Tauchankermagneten mit hohen Betriebsfrequenzen erforderlich sind.The invention is preferably used in solenoid plunger magnets in wire printing technology, where short-stroke plunger magnets with high operating frequencies required are.

Bei dem Einsatz kurzhübiger Tauchankermagneten in der Drahtdrucktechnik werden zwecks Rückführung der Tauchanker nach dem Druckvorgang in eine Ruhelage Federelemente verlangt, die den geringen Abmessungen der Tauchankermagneten und deren hohen Betriebsfrequenzen bei langer lebensdauer Rechnung tragen. Als besonders' geeignet haben sich dafür flache Pederelemente erwiesen, welche radial angeordnete Federarme aufweisen. Diese Federelemente stehen dabei einerseits mit einem entsprechenden Tauchanker in Wirkverbindung und liegen andererseits mit den Federarmen auf- einem Stützring auf.When using short-stroke plunger magnets in wire printing technology are for the purpose of returning the plunger to a rest position after the printing process Requires spring elements that meet the small dimensions of the plunger magnets and whose high operating frequencies and long service life take into account. As a special ' Flat peder elements have proven suitable for this, which are radially arranged Have spring arms. These spring elements are on the one hand with a corresponding Immersion armature in operative connection and on the other hand lie on one with the spring arms Support ring on.

Aus der DE-OS 26 24 809 ist ein derartig flaches Federelement bekannt geworden, deren Federarme seitliche Ausleger besitzen, so daß eine relativ geschlossene Form des Federelementes entsteht.From DE-OS 26 24 809 such a flat spring element is known have become whose spring arms have lateral arms, so that a relatively closed Shape of the spring element is created.

Die Nachteile dieser Form des Pederelementes bestehen im wesentlichen darin, daß die relativ geschlossene Form des Federelementes eine Herstellung'nach der Ätz-Technologie bedingt. Die dabei entstehenden Kanten weisen eine für hohe Dauerschwingbeanspruchung ungünstige rissige Oberfläche auf, so daß die Bruchgefahr der Federarme relativ hoch ist.The disadvantages of this form of the peder element essentially exist in that the relatively closed shape of the spring element can be manufactured according to the etching technology. The resulting edges show a for high Continuous vibration stress unfavorable cracked surface, so that the risk of breakage the spring arms is relatively high.

Desweiteren wird die wirksame Biegelänge durch die seitlichen Ausleger kürzer als notwendig.Furthermore, the effective bending length is determined by the side arms shorter than necessary.

Es sind auch Lösungen entwickelt worden, die auf die seitlichen Ausleger verzichten (DE-OS 25 34 280), Die dadurch entstehende schmale Auflagefläche der Federarme auf dem Stützring bedingt wiederum einen hohen Verschleiß im Stützbereich des Stützringes.Solutions have also been developed that focus on the side outriggers waive (DE-OS 25 34 280), the resulting narrow contact surface of the Spring arms on the support ring in turn cause high wear in the support area of the support ring.

Das Ziel der Erfindung besteht darin, ein flaches Federelement mit radial arigeordneten Federarmen für kurzhübige Tauchankermagneten zu entwickeln, bei welchem die Brhgefahr bezüglich der Federarme auch bei hohen Betriebsfrequenzen des Tauchankermagneten wesentlich verringert und ein vorzeitiger Verschleiß im Stützbereich des Stützringes vermieden wird.The aim of the invention is to provide a flat spring element with to develop radially arranged spring arms for short-stroke plunger magnets, in which the risk of scalding with regard to the spring arms even at high operating frequencies of the plunger magnet is significantly reduced and a premature one Wear in the support area of the support ring is avoided.

Ausgehend von dem Ziel der Erfindung hat sie die Aufgabe, die Federarme des Federelementes dergestaltig auszubilden, daß eine Feinbearbeitung der Kanten der Federarme bei maximaler Ausbildung der Auflageflächen der Federarme auf dem Stützring möglich ist.Based on the aim of the invention, it has the task of the spring arms of the spring element in such a way that fine machining of the edges the spring arms with maximum formation of the contact surfaces of the spring arms on the Support ring is possible.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß die Federarme bis zum Stützbereich des Stützringes trapezförmig und im Stützbereich des Stützringes entgegengesetzt trapezförmig ausgebildet sind. Die sich gegenüberliegenden Begrenzungslinien der benachbarten Federarme verlaufen im Stützbereich des Stützringes bis zum Schnittpunkt mit den jeweiligen Begrenzungslinien außerhalb des Stützbereiches parallel zueinander.According to the invention the object is achieved in that the spring arms up to the support area of the support ring trapezoidal and in the support area of the support ring are formed opposite trapezoidal. The opposing boundary lines of the adjacent spring arms run in the support area of the support ring up to the point of intersection with the respective boundary lines outside the support area parallel to each other.

Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden.The invention is to be described in more detail below using an exemplary embodiment explained.

In der zugehörigen Zeichnung zeigen: Fig. 1: eine Schnittdarstellung des Federelementes mit Stützring Fig. 2: ein Federelement in der Draufsicht Das Federelement 1 hat die Aufgabe, den Tauchanker eines Tauchankermagneten aus der Druckstellung in eine Ruhestellung zurückzuführen. Die Bohrung 2 des Federelementes 1 dienst dabei der Aufnahme des Tauchankers, welcher mit seinem Rückenteil auf der Oberfläche des Federelementes 1 aufliegt und an dessen einem Ende eine Drucknadel befestigt ist. Bei Erregung des Tauchankermagneten wird der Tauchanker in Richtung Druckstelle bewegt, wobei das Federelement 1 mittels des Tauchankerrückens gespannt wird.The accompanying drawings show: FIG. 1: a sectional view of the spring element with support ring Fig. 2: a spring element in plan view Spring element 1 has the task of removing the plunger of a plunger magnet from the Return to the pressure position in a rest position. The bore 2 of the spring element 1 is used to hold the plunger anchor, which is placed with its back on the Surface of the spring element 1 rests and at one end of which a pressure needle is attached. When the plunger magnet is excited, the plunger is in the direction of Pressure point moved, the spring element 1 tensioned by means of the plunger back will.

Als Gegenlager für das Federelement 1 dient dabei ein Stützring 4, auf welchem das Federelement 1 mit seinen Federarmen 3 aufliegt. Das Federelement 1 liegt nur mit den trapezförmig ausgebildeten Enden der Federarme 3 auf dem Stützring 4 auf, so daß die mögliche Biegelänge der Federarme 3 beim Spannen des Federelementes 1 voll ausgenutzt wird. Die Kanten eines trapezförmig ausgebildeten Federarmes 3 verlaufen dabei inl Stützbereich des Stützringes 4 zu den Kanten der benachbarten trapezförmigen Enden der Federarme 3 parallel. Dadurch wird erreicht, daß die Federarme 3 eine maximale Auflage auf dem Stützring 4 erhalten und die Kanten der Federarme 3 mittels Schleifkörper bearbeitet werden können.A support ring 4 serves as a counter bearing for the spring element 1, on which the spring element 1 rests with its spring arms 3. The spring element 1 is just with the trapezoidal ends of the spring arms 3 on the support ring 4, so that the possible bending length of the spring arms 3 when tensioning of the spring element 1 is fully utilized. The edges of a trapezoidal shape Spring arms 3 run inl the support area of the support ring 4 to the edges of the adjacent trapezoidal ends of the spring arms 3 parallel. This achieves that the spring arms 3 receive a maximum support on the support ring 4 and the edges the spring arms 3 can be processed by means of grinding tools.

LeerseiteBlank page

Claims (2)

Patentanst>rüche 1. Federelement für Tauchankermagneten mit radial angeordneten und auf einem Stützring aufliegenden Pederarmen, wobei das Federelement mit einem Tauchanker in Wirkverbindung steht, dadurch gekennzeichnet, daß die Federarme (3) bis zum Stützbereich des Stützringes (4) trapezförmig und im Stützbereich des Stützringes (4) entgegengesetzt trapezförmig ausgebildet sind, wobei gegenüberliegende Begrenzungslinien benachbarter Federarme (3) im Stützbereich des Stützringes (4) bis zum Schnittpunkt mit entsprechenden Begrenzungslinien der Federarme (3) außerhalb des Stützbereiches des Stützringes (4) einen parallelen Verlauf aufweisen.Patent application 1. Spring element for plunger armature magnets with radial arranged and resting on a support ring peder arms, wherein the spring element is in operative connection with a plunger, characterized in that the spring arms (3) up to the support area of the support ring (4) trapezoidal and in the support area of the Support ring (4) are formed opposite trapezoidal, with opposite Boundary lines of adjacent spring arms (3) in the support area of the support ring (4) to the point of intersection with the corresponding boundary lines of the spring arms (3) outside of the support area of the support ring (4) have a parallel course. 2. Federelement für Tauchankermagneten nach Anspruch 1, dadurch gekennzeichnet, daß die Begrenzungslinien der Federarme (3) im Stützbereich des Stützringes (4) mit den Begrenzungslinien der Federarme (3) außerhalb des Stützbereiches des Stützringes (4) einen stumpfen Winkel bilden.2. Spring element for plunger magnets according to claim 1, characterized in that that the boundary lines of the spring arms (3) in the support area of the support ring (4) with the boundary lines of the spring arms (3) outside the support area of the support ring (4) Form an obtuse angle.
DE19792919697 1978-06-30 1979-05-16 Needle drive unit for needle printer - includes six armed spring under head of armature, resting on spacer ring Withdrawn DE2919697A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20639478A DD136814A1 (en) 1978-06-30 1978-06-30 SPRING ELEMENT FOR DIVING ANCHOR MAGNETS

Publications (1)

Publication Number Publication Date
DE2919697A1 true DE2919697A1 (en) 1980-01-10

Family

ID=5513364

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792919697 Withdrawn DE2919697A1 (en) 1978-06-30 1979-05-16 Needle drive unit for needle printer - includes six armed spring under head of armature, resting on spacer ring

Country Status (4)

Country Link
CS (1) CS223561B1 (en)
DD (1) DD136814A1 (en)
DE (1) DE2919697A1 (en)
SU (1) SU1013309A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157630A2 (en) * 1984-04-04 1985-10-09 Parker Hannifin Corporation Force motor
EP0157632A2 (en) * 1984-04-04 1985-10-09 Parker Hannifin Corporation Force motor
DE4244444A1 (en) * 1992-12-23 1994-07-07 Mannesmann Ag Electromagnetic valve with electric current feed for electromagnetic coil
DE4244443A1 (en) * 1992-12-23 1994-07-07 Mannesmann Ag Electromagnetic drive with magnet yoke carrying electromagnetic coil
DE19641239A1 (en) * 1995-10-06 1997-04-17 Nissan Motor Active vibrational damping mounting for vehicle engine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157630A2 (en) * 1984-04-04 1985-10-09 Parker Hannifin Corporation Force motor
EP0157632A2 (en) * 1984-04-04 1985-10-09 Parker Hannifin Corporation Force motor
EP0157630A3 (en) * 1984-04-04 1986-09-17 Parker Hannifin Corporation Force motor
EP0157632A3 (en) * 1984-04-04 1986-09-17 Parker Hannifin Corporation Force motor
DE4244444A1 (en) * 1992-12-23 1994-07-07 Mannesmann Ag Electromagnetic valve with electric current feed for electromagnetic coil
DE4244443A1 (en) * 1992-12-23 1994-07-07 Mannesmann Ag Electromagnetic drive with magnet yoke carrying electromagnetic coil
DE4244443C2 (en) * 1992-12-23 1998-11-26 Mannesmann Ag Electromagnetic drive
DE19641239A1 (en) * 1995-10-06 1997-04-17 Nissan Motor Active vibrational damping mounting for vehicle engine
US5947456A (en) * 1995-10-06 1999-09-07 Nissan Motor Co., Ltd. Vibration insulating device
DE19641239C2 (en) * 1995-10-06 2001-10-11 Nissan Motor Vibration damping device

Also Published As

Publication number Publication date
SU1013309A1 (en) 1983-04-23
CS223561B1 (en) 1983-10-28
DD136814A1 (en) 1979-08-01

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee