EP1008427B1 - Chipping machine - Google Patents

Chipping machine Download PDF

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Publication number
EP1008427B1
EP1008427B1 EP19980122417 EP98122417A EP1008427B1 EP 1008427 B1 EP1008427 B1 EP 1008427B1 EP 19980122417 EP19980122417 EP 19980122417 EP 98122417 A EP98122417 A EP 98122417A EP 1008427 B1 EP1008427 B1 EP 1008427B1
Authority
EP
European Patent Office
Prior art keywords
strain gauge
goods
inlet
housing
hand
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
EP19980122417
Other languages
German (de)
French (fr)
Other versions
EP1008427A1 (en
Inventor
Robert Loth
Rolf Dipl.-Ing. Ameling
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.)
B Maier Zerkleinerungstechnik GmbH
Original Assignee
B Maier Zerkleinerungstechnik GmbH
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 B Maier Zerkleinerungstechnik GmbH filed Critical B Maier Zerkleinerungstechnik GmbH
Priority to EP19980122417 priority Critical patent/EP1008427B1/en
Priority to DE59807199T priority patent/DE59807199D1/en
Priority to ES98122417T priority patent/ES2192732T3/en
Publication of EP1008427A1 publication Critical patent/EP1008427A1/en
Application granted granted Critical
Publication of EP1008427B1 publication Critical patent/EP1008427B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27LREMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/002Transporting devices for wood or chips

Definitions

  • the invention relates to a chipper for producing chips, especially for the chipboard industry.
  • Knife ring chippers are in a wide variety of designs have become known. You assign one Knife ring on, comprising numerous knife units, each one Include support block and a knife carried by this.
  • the knife ring encloses a rotor that removes the wood chips to be machined Knife ring fed radially from the inside to the outside.
  • the knife ring is in turn enclosed by a housing.
  • the knives of the knife ring run essentially parallel to Knife ring axis. Between each knife and the neighboring one Knife unit is a gap through which the chips radially outwards to step.
  • the support blocks each have on their side facing the rotor a wear surface.
  • Knife shaft chippers are also known. These have a Knife shaft with knives on. The knives are also about the scope of the Knife shaft arranged in a distributed manner, but with their cutting edges outside (cf. DE 30 18 110 A1).
  • the invention has for its object to provide a device with which is possible the throughput or the volume output of a chipper to be recorded at any time, if possible the quantity of the absolutely dry good.
  • the inventors have accordingly taken an incredibly simple measure.
  • the strain gauge intervenes on the one hand on a component to which the material flow impinges, and on another on a rigid component of the machine frame.
  • the Gutstromes the strain gauge is elongated.
  • the measure of Elongation depends on the intensity of the impact, which in turn is one
  • the function of the impacting mass and its speed is. Thus leaves record throughput at all times.
  • the chipper has one ring-shaped knife basket 1. This is enclosed by a housing 2, and in turn encloses a rotor 3.
  • the knife basket 1 is constructed from two rings 1.1 and 1.2, also from knife units.
  • Decisive for the invention is the design of the inlet 2.1 and a strain gauge provided therein.
  • the one in Figure 3 in more detail Inlet 2.1 shown has baffles 2.1.1, 2.1.2 and 2.1.3 as guide elements on. These guide the material to be cut along a zigzag path - see dashed line with arrows.
  • a strain gauge 4 can be seen. This comprises a console 4.1 and a strain gauge 4.2.
  • the console 4.1 is on one Wall 2.5 of the inlet 2.1 welded firmly.
  • the free end of the Console 4.1 supports the upper baffle 2.1.1.
  • the top baffle is 2.1.1 worn only by the strain gauge 4. You could on this be articulated.
  • the strain gauge 4.2 is on the one hand on the rigid wall 2.5 of the Inlet 2.1 attached, on the other hand to the upper baffle 2.1.1.
  • the upper Baffle plate 2.1.1 experiences a through the impact of the material flow Deflection so that the strain gauge 4.2 has a corresponding Shortening or elongation.
  • a device, not shown here, for detecting the moisture of the Gutstromes allows the conversion of those implemented per unit of time Quantity of the goods in absolute weight values, i.e. free of moisture. Such a device works without contact, for example after Principle of inductance.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Description

Die Erfindung betrifft einen Zerspaner zum Herstellen von Spänen, insbesondere für die Spanplattenindustrie.The invention relates to a chipper for producing chips, especially for the chipboard industry.

Eine besonders verbreitete Gattung eines solchen Zerspaners ist der Messerringzerspaner (vgl. DE 32 47 629 C1). Messerringzerspaner sind in einer großen Vielfalt von Bauarten bekannt geworden. Sie weisen einen Messerring auf, umfassend zahlreiche Messereinheiten, die jeweils einen Tragklotz sowie ein von diesem getragenes Messer umfassen. Der Messerring umschließt einen Rotor, der die zu zerspanenden Hackschnitzel dem Messerring radial von innen nach außen zufördert. Der Messerring ist seinerseits von einem Gehäuse umschlossen.A particularly widespread type of such a chipper is the Knife ring chipper (see DE 32 47 629 C1). Knife ring chippers are in a wide variety of designs have become known. You assign one Knife ring on, comprising numerous knife units, each one Include support block and a knife carried by this. The knife ring encloses a rotor that removes the wood chips to be machined Knife ring fed radially from the inside to the outside. The knife ring is in turn enclosed by a housing.

Die Messer des Messerrings verlaufen im wesentlichen parallel zur Messerringachse. Zwischen einem jeden Messer und der benachbarten Messereinheit befindet sich ein Spalt, durch den die Späne radial nach außen treten. Die Tragklötze weisen auf ihrer dem Rotor zugewandten Seite jeweils eine Verschleißfläche auf.The knives of the knife ring run essentially parallel to Knife ring axis. Between each knife and the neighboring one Knife unit is a gap through which the chips radially outwards to step. The support blocks each have on their side facing the rotor a wear surface.

Weiterhin sind Messerwellenzerspaner bekannt. Diese weisen eine Messerwelle mit Messern auf. Die Messer sind ebenfalls über den Umfang der Messerwelle verteilt angeordnet, weisen jedoch mit ihren Schneiden nach außen (vgl. DE 30 18 110 A1).Knife shaft chippers are also known. These have a Knife shaft with knives on. The knives are also about the scope of the Knife shaft arranged in a distributed manner, but with their cutting edges outside (cf. DE 30 18 110 A1).

Allen diesen Zerspanern ist gemeinsam, daß sie Zuführorgane für das zu zerspanende Gut haben. So ist beim Messerringzerspaner dem Messerring zunächst eine Vibrationsförderstrecke zugeordnet, an die sich eine Fallstrecke anschließt. Die Fallstrecke kann Leitbleche aufweisen, die das zu zerspanende Gut auf einem Zickzack-Weg leiten. All these chippers have in common that they have feeders for the have good machining. So is the knife ring with the knife ring chipper First of all, a vibration conveyor section is assigned to which there is a drop section followed. The fall path can have baffles that are to be machined Guide well on a zigzag path.

Bei allen Zerspanern besteht das Bedürfnis, den Durchsatz des zu zerspanenden Gutes, d.h. die pro Zeiteinheit durchgesetzte Menge zu erfassen.With all hoggers there is a need to increase the throughput of the good, i.e. the amount enforced per unit of time to capture.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung anzugeben, mit der es möglich ist, den Durchsatz oder die Mengenleistung eines Zerspaners zu jedem beliebigen Zeitpunkt zu erfassen, und zwar möglichst die Menge des absolut trockenen Gutes.The invention has for its object to provide a device with which is possible the throughput or the volume output of a chipper to be recorded at any time, if possible the quantity of the absolutely dry good.

Diese Aufgabe wird durch Merkmale von Anspruch 1 gelöst.This object is achieved by the features of claim 1.

Die Erfinder haben demgemäß eine verblüffend einfache Maßnahme ergriffen. Sie haben eine Dehnungsmeßeinrichtung in den Förderweg des zu zerspanenden Gutes eingebaut. Die Dehnungsmeßeinrichtung greift dabei einerseits an einem Bauteil an, auf welches der Gutstrom aufprallt, und zum anderen an einem starren Bauteil des Maschinengestells. Beim Aufprall des Gutstromes erfährt die Dehnungsmeßeinrichtung eine Längung. Das Maß der Längung hängt ab von der Intensität des Aufpralles, die wiederum eine Funktion der aufprallenden Masse sowie deren Geschwindigkeit ist. Somit läßt sich zu jedem Zeitpunkt der Durchsatz erfassen. Darüber hinaus kann man durch mathematische Integration die Gesamtmenge des Gutes ermitteln, das während einer bestimmten Zeitspanne in den Arbeitsbereich der Maschine eintritt.The inventors have accordingly taken an amazingly simple measure. You have a strain gauge in the conveying path of the metal-cutting goods. The strain gauge intervenes on the one hand on a component to which the material flow impinges, and on another on a rigid component of the machine frame. When the Gutstromes the strain gauge is elongated. The measure of Elongation depends on the intensity of the impact, which in turn is one The function of the impacting mass and its speed is. Thus leaves record throughput at all times. In addition, you can determine the total amount of the good by mathematical integration during a certain period of time in the working area of the machine entry.

Die Erfindung ist anhand der Zeichnung näher erläutert. Darin ist im einzelnen folgendes dargestellt:

Fig. 1
zeigt einen Zerspaner von vorn, d.h. in einer Ansicht auf diejenige Seite, auf der sich der Gehäusedeckel mit dem Einlaß für die Hackschnitzel befindet.
Fig. 2
zeigt den Zerspaner gemäß Figur 1 in vergrößertem Maßstab in einem Axialschnitt.
Fig. 3
zeigt in vergrößertem Maßstab den Einlaß für die zu zerspanenden Hackschnitzel.
The invention is explained in more detail with reference to the drawing. The following is shown in detail:
Fig. 1
shows a chipper from the front, ie in a view of the side on which the housing cover with the inlet for the chips is located.
Fig. 2
shows the chipper according to Figure 1 in an enlarged scale in an axial section.
Fig. 3
shows on an enlarged scale the inlet for the wood chips to be cut.

Wie man aus den Figuren im einzelnen sieht, weist der Zerspaner einen ringförmigen Messerkorb 1 auf. Dieser ist umschlossen von einem Gehäuse 2, und umschließt seinerseits einen Rotor 3. Der Messerkorb 1 ist aufgebaut aus zwei Ringen 1.1 und 1.2, ferner aus Messereinheiten.As you can see from the figures in detail, the chipper has one ring-shaped knife basket 1. This is enclosed by a housing 2, and in turn encloses a rotor 3. The knife basket 1 is constructed from two rings 1.1 and 1.2, also from knife units.

Das Gehäuse 2 weist einen Einlaß 2.1 für die zu zerspanenden Hackschnitzel auf, ferner einen Ringkanal 2.2, in dem die Späne gesammelt und aus dem sie abgeführt werden.The housing 2 has an inlet 2.1 for the wood chips to be cut on, also a ring channel 2.2, in which the chips are collected and from the they are dissipated.

Entscheidend für die Erfindung ist die Gestaltung des Einlasses 2.1 sowie einer darin vorgesehenen Dehnungsmeßeinrichtung. Der in Figur 3 genauer dargestellte Einlaß 2.1 weist als Leitorgane Prallplatten 2.1.1, 2.1.2 und 2.1.3 auf. Diese leiten das zu zerspanende Gut entlang eines Zickzack-Weges - siehe gestrichelte Linie mit Pfeilen.Decisive for the invention is the design of the inlet 2.1 and a strain gauge provided therein. The one in Figure 3 in more detail Inlet 2.1 shown has baffles 2.1.1, 2.1.2 and 2.1.3 as guide elements on. These guide the material to be cut along a zigzag path - see dashed line with arrows.

Man erkennt eine Dehnungsmeßeinrichtung 4. Diese umfaßt eine Konsole 4.1 sowie einen Dehnungsmeßstreifen 4.2. Die Konsole 4.1 ist an einer Wandung 2.5 des Einlasses 2.1 fest angeschweißt. Das freie Ende der Konsole 4.1 stützt die obere Prallplatte 2.1.1 ab. Die obere Prallplatte 2.1.1 ist ausschließlich von der Dehnungsmeßeinrichtung 4 getragen. Sie könnte an dieser gelenkig angeschlossen sein.A strain gauge 4 can be seen. This comprises a console 4.1 and a strain gauge 4.2. The console 4.1 is on one Wall 2.5 of the inlet 2.1 welded firmly. The free end of the Console 4.1 supports the upper baffle 2.1.1. The top baffle is 2.1.1 worn only by the strain gauge 4. You could on this be articulated.

Der Dehnungsmeßstreifen 4.2 ist einerseits an der starren Wandung 2.5 des Einlasses 2.1 befestigt, andererseits an der oberen Prallplatte 2.1.1. Die obere Prallplatte 2.1.1 erfährt durch den Aufprall des Gutstromes eine Durchbiegung, so daß der Dehnungsmeßstreifen 4.2 eine entsprechende Verkürzung oder Längung ausführt.The strain gauge 4.2 is on the one hand on the rigid wall 2.5 of the Inlet 2.1 attached, on the other hand to the upper baffle 2.1.1. The upper Baffle plate 2.1.1 experiences a through the impact of the material flow Deflection so that the strain gauge 4.2 has a corresponding Shortening or elongation.

Eine hier nicht dargestellte Einrichtung zum Erfassen der Feuchte des Gutstromes erlaubt die Umrechnung der pro Zeiteinheit durchgesetzten Menge des Gutes in absoluten Gewichtswerten, d.h. frei von Feuchtigkeit. Eine solche Einrichtung arbeitet berührungslos, beispielsweise nach dem Prinzip der Induktivität.A device, not shown here, for detecting the moisture of the Gutstromes allows the conversion of those implemented per unit of time Quantity of the goods in absolute weight values, i.e. free of moisture. Such a device works without contact, for example after Principle of inductance.

Claims (3)

  1. Chipping machine for producing chips from wood chips, in particular a knifering flaker, said machine having
    a housing (2);
    a chipping member (3) rotatably mounted in the housing (2);
    an inlet (2.1), associated with the housing (2), for the goods to be chipped;
    a chip collecting chamber (2.2), associated with the housing (2) and having an outlet;
    characterised by the following features:
    a strain gauge (4) is associated with the inlet (2.1);
    the strain gauge (4) engages on the one hand on a rigid component of the frame of the chipping machine, and on the other hand on a wall which is arranged in such a way that the flow of goods impinges on it.
  2. Chipping machine according to claim 1, characterised in that the inlet (2.1) has at least one impact plate (2.1.1) acting as a guiding member for the flow of goods to be chipped, in that the impact plate (2.1.1) - when seen in side view - is suspended floating with its one end on a wall (2.5) of the inlet (2.2) and in that a wire strain gauge (4.2) is provided as the strain gauge (4), which engages on the one hand on the impact plate (2.1.1) and on the other hand on the rigid wall (2.5).
  3. Chipping machine according to claim 1 or 2, characterised in that a device for detecting the humidity of the flow of goods is arranged inside the feed path for the goods to be chipped.
EP19980122417 1998-11-26 1998-11-26 Chipping machine Expired - Lifetime EP1008427B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19980122417 EP1008427B1 (en) 1998-11-26 1998-11-26 Chipping machine
DE59807199T DE59807199D1 (en) 1998-11-26 1998-11-26 chipper
ES98122417T ES2192732T3 (en) 1998-11-26 1998-11-26 VIRUTE STARTING MACHINE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980122417 EP1008427B1 (en) 1998-11-26 1998-11-26 Chipping machine

Publications (2)

Publication Number Publication Date
EP1008427A1 EP1008427A1 (en) 2000-06-14
EP1008427B1 true EP1008427B1 (en) 2003-02-12

Family

ID=8233035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980122417 Expired - Lifetime EP1008427B1 (en) 1998-11-26 1998-11-26 Chipping machine

Country Status (3)

Country Link
EP (1) EP1008427B1 (en)
DE (1) DE59807199D1 (en)
ES (1) ES2192732T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017111071A1 (en) * 2017-05-22 2018-12-06 Pallmann Maschinenfabrik Gmbh & Co. Kg Apparatus for comminuting feed material and method for operating such a comminution device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018110A1 (en) 1980-05-12 1982-02-04 Maschinenfabrik Bezner Gmbh & Co Kg, 7980 Ravensburg KNIFE SHAFT WITH WOOD INLET
DE3247629C1 (en) 1982-12-23 1984-03-22 Maschinenfabrik B.Maier GmbH & Co KG, 4800 Bielefeld Blade ring-type chip shredder - has chip-removing air flow produced by auxiliary rotor vanes in duct axially adjacent to chip outlet duct
SU1195212A1 (en) * 1983-07-22 1985-11-30 Le Lesotekh Akad Installation for investigating process of pulling through wood
SU1465106A1 (en) * 1986-03-17 1989-03-15 Киевский Технологический Институт Пищевой Промышленности Installation for measuring the force when cutting meat products
US5020579A (en) * 1990-05-21 1991-06-04 Strong Manufacturing Automatic infeed control
US5477900A (en) * 1995-03-15 1995-12-26 Gray; David A. Non-jamming pulpwood chipper chute and spout assembly
DE19724325C1 (en) * 1997-06-10 1999-01-28 Maier Zerkleinerungstech Gmbh Blade-type chipping machine for making chips for chipboard industry

Also Published As

Publication number Publication date
EP1008427A1 (en) 2000-06-14
DE59807199D1 (en) 2003-03-20
ES2192732T3 (en) 2003-10-16

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