DE202007000162U1 - Cutter spring for circular cutter has spring force produced by concentric bent spring arms formed from slots and webs radially attached to circular carrier element - Google Patents

Cutter spring for circular cutter has spring force produced by concentric bent spring arms formed from slots and webs radially attached to circular carrier element Download PDF

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Publication number
DE202007000162U1
DE202007000162U1 DE200720000162 DE202007000162U DE202007000162U1 DE 202007000162 U1 DE202007000162 U1 DE 202007000162U1 DE 200720000162 DE200720000162 DE 200720000162 DE 202007000162 U DE202007000162 U DE 202007000162U DE 202007000162 U1 DE202007000162 U1 DE 202007000162U1
Authority
DE
Germany
Prior art keywords
spring
cutter
circular
knife
slots
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.)
Expired - Lifetime
Application number
DE200720000162
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German (de)
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.)
Wilhelm Bilstein KG Spezialfabrik fuer Maschinenmesser und Kompressorventile
Original Assignee
Wilhelm Bilstein KG Spezialfabrik fuer Maschinenmesser und Kompressorventile
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 Wilhelm Bilstein KG Spezialfabrik fuer Maschinenmesser und Kompressorventile filed Critical Wilhelm Bilstein KG Spezialfabrik fuer Maschinenmesser und Kompressorventile
Priority to DE200720000162 priority Critical patent/DE202007000162U1/en
Publication of DE202007000162U1 publication Critical patent/DE202007000162U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B26D7/2621—Means for mounting the cutting member for circular cutters

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Knives (AREA)

Abstract

The spring (1)has its spring force produced by concentric bent spring arms (4) formed from slots (2) and webs (3) radially attached to a circular carrier element. The spring arms may run symmetrically or may be opposite each other in pairs. The spring arms may be coated with a dirt-repellent layer. There may be several cutter springs on the cutter carrier.

Description

Die Erfindung betrifft eine Messerfederanordnung zur Befederung von Kreismessern als sogen. Obermesser an Obermesserträgern, die im Scherenschnittsystem in Längsschneidemaschinen gegen zugeordnete Untermesser arbeiten.The The invention relates to a knife spring arrangement for the feathering of Circular knives as so-called. Upper knife on upper knife carriers, the in shear cutting system in slitting machines against assigned lower blade work.

Eine derartige Befederung für das Obermesser an einem Obermesserträger auf einer Obermesserwelle ist z.B. in Form einer Spiralfeder als Federelement in der G 85 14 257 dargestellt.Such feathering for the upper blade on a upper blade carrier on a upper blade shaft is, for example, in the form of a spiral spring as a spring element in the G 85 14 257 shown.

Eine andere Befederung für das Obermesser an einem Obermesserträger in einem Kreismesserhalter ist z.B. in Form einer Tellerfeder als Federelement in der DBP 1 156 635 beschrieben.A other feathering for the upper knife on a top knife carrier in a circular knife holder is e.g. in the form of a plate spring as a spring element in the DBP 1 156 635 described.

Insbesondere beim Einsatz von Kreismesserhaltern zum Schneiden von Papierbahnen hat sich die Tellerfeder bzw. mehrerer Tellerfedern als nachteilig herausgestellt, da diese durch den Schneidstaub verschmutzen, sich zusetzen, verklemmen bzw. verkanten und ihre Funktion verlieren. Auch der Einsatz von elastischen Vollringen als Federelement bewirkt nicht das gewünschte Schneidergebnis.Especially when using circular knife holders for cutting paper webs has the diaphragm spring or more disc springs as disadvantageous exposed as these pollute by the cutting dust, themselves clog, jam or jam and lose their function. Also the use of elastic Vollringen causes as a spring element not the desired one Cutting result.

Die Aufgabe der Erfindung besteht darin, eine andere Art der Messerbefederung einzusetzen, die das Problem löst.The The object of the invention is a different type of knife spring to use that solves the problem.

Der Grundgedanke der Erfindung besteht darin, die eigentliche Federkraft über offen gestaltete Federarme zu bewirken.Of the The basic idea of the invention is the actual spring force over open designed to effect spring arms.

Die Erfindung wird im Folgenden in Zeichnungen näher erläutert. Es zeigt:The The invention will be explained in more detail in the following drawings. It shows:

1 die Vorderansicht einer Messerfeder, 1 the front view of a knife spring,

2 die Vorderansicht einer Messerfedervariante. 2 the front view of a knife spring variant.

In 1 ist die Vorderansicht einer Messerfeder 1 dargestellt. Sie besteht aus einer ursprünglich flachen Ringscheibe aus Federstahl, wobei durch relativ grosse, konzentrisch angeordnete Schlitze 2 und radial angeordnete Stege 3 die Federarme 4 gebildet sind, welche ihre Federkraft durch Aufbiegen erreichen. In der abgebildeten Ausführungsform sind die Federarme symmetrisch fortlaufend angeordnet. An den Federarmenden sind diese abgeflacht.In 1 is the front view of a knife spring 1 shown. It consists of an originally flat annular disc made of spring steel, with relatively large, concentrically arranged slots 2 and radially arranged webs 3 the spring arms 4 are formed, which reach their spring force by bending. In the illustrated embodiment, the spring arms are symmetrically arranged continuously. At the spring arm ends these are flattened.

In 2 ist eine Variante der Messerfeder gem. 1 dargestellt. In dieser Ausführungsform sind die Federarme paarweise gegenüberliegend angeordnet.In 2 is a variant of the knife spring acc. 1 shown. In this embodiment, the spring arms are arranged in pairs opposite one another.

Es können eine oder auch mehrere Messerfedern auf einem Messerträger zur Befederung des Kreismessers angeordnet sein. Zur weiteren Vermeidung von Schmutzablage können die Messerfedern mit einer schmutzabweisenden Schicht versehen sein.It can one or more knife springs on a knife carrier for Be arranged feathering of the circular blade. For further avoidance of dirt deposit can the knife springs should be provided with a dirt-repellent layer.

Claims (4)

Messerfeder für Kreismesser in Längsschneidemaschinen dadurch gekennzeichnet, dass die Federkraft über konzentrisch angeordnete aufgebogene Federarme erfolgt, die durch weite, konzentrisch angeordnete Schlitze und radial angeordnete mit dem kreisförmigen Trägerelement verbundene Stege gebildet sind.Knife spring for circular knife in longitudinal cutting machines characterized in that the spring force via concentrically arranged bent spring arms, which are formed by wide, concentrically arranged slots and radially arranged with the circular support member webs. Messerfeder nach Anspruch 1 dadurch gekennzeichnet, dass die Federarme symmetrisch fortlaufend angeordnet sind.Knife spring according to claim 1, characterized that the spring arms are arranged symmetrically continuously. Messerfeder nach Anspruch 1 dadurch gekennzeichnet, dass die Federarme paarweise gegenüberliegend angeordnet sind.Knife spring according to claim 1, characterized that the spring arms are arranged in pairs opposite one another. Messerfeder nach Anspruch 1 dadurch gekennzeichnet, dass diese mit einer schmutzabweisenden Schicht versehen sind.Knife spring according to claim 1, characterized that they are provided with a dirt-repellent layer.
DE200720000162 2007-01-04 2007-01-04 Cutter spring for circular cutter has spring force produced by concentric bent spring arms formed from slots and webs radially attached to circular carrier element Expired - Lifetime DE202007000162U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200720000162 DE202007000162U1 (en) 2007-01-04 2007-01-04 Cutter spring for circular cutter has spring force produced by concentric bent spring arms formed from slots and webs radially attached to circular carrier element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200720000162 DE202007000162U1 (en) 2007-01-04 2007-01-04 Cutter spring for circular cutter has spring force produced by concentric bent spring arms formed from slots and webs radially attached to circular carrier element

Publications (1)

Publication Number Publication Date
DE202007000162U1 true DE202007000162U1 (en) 2007-03-08

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DE200720000162 Expired - Lifetime DE202007000162U1 (en) 2007-01-04 2007-01-04 Cutter spring for circular cutter has spring force produced by concentric bent spring arms formed from slots and webs radially attached to circular carrier element

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DE (1) DE202007000162U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008005799A1 (en) 2008-01-24 2009-07-30 Koenig & Bauer Aktiengesellschaft Knife i.e. circular knife, holder for use in slitter of sheet-fed rotary press, has flexible unit with detention-firm connection to knife axle and knife head arranged in annular gap, where knife head springily pushes away on connection
CN107035912A (en) * 2011-09-22 2017-08-11 株式会社不二工机 Valve gear

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008005799A1 (en) 2008-01-24 2009-07-30 Koenig & Bauer Aktiengesellschaft Knife i.e. circular knife, holder for use in slitter of sheet-fed rotary press, has flexible unit with detention-firm connection to knife axle and knife head arranged in annular gap, where knife head springily pushes away on connection
CN107035912A (en) * 2011-09-22 2017-08-11 株式会社不二工机 Valve gear

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20070412

R156 Lapse of ip right after 3 years

Effective date: 20100803