DE1223529B - Process for the production of wood chips that are similar to one another in cross-section - Google Patents

Process for the production of wood chips that are similar to one another in cross-section

Info

Publication number
DE1223529B
DE1223529B DEH56223A DEH0056223A DE1223529B DE 1223529 B DE1223529 B DE 1223529B DE H56223 A DEH56223 A DE H56223A DE H0056223 A DEH0056223 A DE H0056223A DE 1223529 B DE1223529 B DE 1223529B
Authority
DE
Germany
Prior art keywords
wood
wood chips
production
another
similar
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.)
Pending
Application number
DEH56223A
Other languages
German (de)
Inventor
Peter Voelskow
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.)
Hombak Maschinenfabrik KG
Original Assignee
Hombak Maschinenfabrik KG
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 Hombak Maschinenfabrik KG filed Critical Hombak Maschinenfabrik KG
Priority to DEH56223A priority Critical patent/DE1223529B/en
Publication of DE1223529B publication Critical patent/DE1223529B/en
Pending legal-status Critical Current

Links

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
    • B27L11/02Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

AUSLEGESCHRIFTEDITORIAL

Int. Cl.:Int. Cl .:

B271B271

Deutsche Kl.: 38 i - 4German class: 38 i - 4

Nummer: 1223 529Number: 1223 529

Aktenzeichen: H 562231 c/38 iFile number: H 562231 c / 38 i

Anmeldetag: 4. Juni 1965Filing date: June 4, 1965

Auslegetag: 25. August 1966Opening day: August 25, 1966

Die Erfindung liegt auf dem Gebiet der bekannten Verfahren zur Herstellung von im Parallelogramm-Querschnitt einander ähnlichen Hackschnitzeln aus Holz.The invention lies in the field of known methods for producing parallelogram cross-sections similar wood chips.

Bekannte Verfahren verwenden zur Lösung dieser Aufgabe Hackmesser mit vielen einzelnen Messern. Diese Verfahren sind besonders nachteilig, weil die Messer nach einigen Stunden Betriebszeit ausgewechselt, geschärft und neu eingestellt werden müssen. Da in der Praxis sehr verschiedene Holz- ίο arten gehackt werden müssen und die Hackfähigkeit auch derselben Holzart je nach Feuchtigkeitsgehalt, Alter des Holzes usw. sehr verschieden ist, läßt sich erfahrungsgemäß nicht sorgfältig genug voraussehen, wann die Hackmesser einer Überholung bedürfen. Hier setzt die Erfindung ein.Known methods use chopping knives with many individual knives to solve this problem. These methods are particularly disadvantageous because the knives are changed after a few hours of operation, need to be sharpened and readjusted. Since in practice very different wood ίο species have to be chopped and the ability to chop the same type of wood depending on the moisture content, Age of the wood etc. is very different, experience shows that it cannot be foreseen carefully enough, when the chopping knives need an overhaul. This is where the invention comes in.

Sie löst die Aufgabe, die Messeranordnung zur Ausübung des Verfahrens zu vereinfachen. Es gelingt nach der Erfindung, nur eine Messerschneide zu verwenden, welche die Holzfasern in einem spitzen Winkel durchtrennt, wonach die Spaltung der einzelnen Hackschnitzel aus den abgetrennten Holzscheiben erfolgt. Das erfindungsgemäße Verfahren besteht also darin, zunächst mittels der Schneide eines ebenen Hackmessers die Holzfasern des zu zerkleinernden Holzes in einem spitzen Winkel von etwa 10 bis 25° zu durchtrennen und anschließend aus den einzelnen, abgetrennten Holzscheiben durch Spalten mittels eines Hammerrotors Hackschnitzel herzustellen.It solves the problem of simplifying the knife arrangement for performing the method. It succeeds according to the invention to use only one knife edge, which the wood fibers at an acute angle severed, after which the splitting of the individual wood chips from the separated wood slices he follows. The method according to the invention therefore consists in first using the cutting edge of a flat The wood fibers of the wood to be shredded at an acute angle of about 10 to 25 ° to cut through and then from the individual, separated wooden slices by means of splitting a hammer rotor to produce wood chips.

Zum Aufspalten der Holzscheiben können auch Nocken dienen, die der Schneide des Hack- oder Schälmessers nachgeschaltet sind und welche die von dem Schälmesser abgetrennten Holzscheiben durch streifenweises Verdrehen aufspalten. Dieses verbesserte Verfahren nutzt die Beobachtung aus, daß die Hackschnitzel in Faserlängsrichtung leicht aufplatzen, wenn die Scheiben nach der Erfindung im ersten Arbeitsgang in einem spitzen Winkel von 10 bis 25° abgeschnitten worden sind. Zwar werden in der zweiten Stufe des Hackens uneinheitliche Parallelogrammschnitzel gebildet, diese sind jedoch sauber geformt. Sie weisen keine Stauchschäden auf, die sich bei der weiteren Verarbeitung zu Papierfaserbrei nachteilig bemerkbar machen.To split the wooden slices, cams can also serve the cutting edge of the chopping or Paring knife are connected downstream and which the wood slices separated by the paring knife through Split in stripes twisting. This improved method takes advantage of the observation that the wood chips easily burst open in the longitudinal direction of the fibers when the discs according to the invention in the cut at an acute angle of 10 to 25 ° in the first step. In The second stage of chopping formed inconsistent parallelogram chips, but these are neatly shaped. They do not show any compressive damage, which would turn into paper pulp during further processing disadvantageously noticeable.

Die Vermeidung dieses Nachteils spielt eine wesentlich größere Rolle als der Vorteil einer einheitlichen Größe der Parallelogrammschnitzel, die für andere Verwendungen wiederum vorteilhaft sind.Avoiding this disadvantage plays a much larger role than the advantage of a uniform Size of the parallelogram chips, which in turn are advantageous for other uses.

Verfahren zur Herstellung von im
Parallelogramm-Querschnitt einander
ähnlichen Hackschnitzeln aus Holz
Process for the production of im
Parallelogram cross-section each other
similar wood chips

Anmelder:Applicant:

Hombak Maschinenfabrik K. G., Bad KreuznachHombak Maschinenfabrik K. G., Bad Kreuznach

Als Erfinder benannt:
Peter Voelskow, Hildesheim
Named as inventor:
Peter Voelskow, Hildesheim

In der Zeichnung ist eine beispielsweise Ausführungsform für das Verfahren nach der Erfindung dargestellt.In the drawing is an exemplary embodiment for the method according to the invention shown.

F i g. 1 zeigt das Schnittschema des ebenen, durchgehenden Hackmessers;F i g. 1 shows the sectional diagram of the flat, continuous chopping knife;

F i g. 2 zeigt das Beispiel einer Nachzerkleinerungsvorrichtung für die abgeschnittenen Holzscheiben im Schema nach Fig. 1.F i g. 2 shows the example of a re-shredding device for the cut wood slices in Scheme according to Fig. 1.

In F i g. 1 wird auf der festen Auflage 1 das im Beispiel balkenförmige Holzstück 5 in Pfeilrichtung, d. h. Faserrichtung, vorgeschoben, während das Hackmesser 2 unter einem spitzen Winkel α gleich bis 25°, Scheiben 11 von dem vorgeschobenen Holzende abhackt.In Fig. 1, the bar-shaped piece of wood 5 in the example is placed on the fixed support 1 in the direction of the arrow, d. H. Fiber direction, advanced while the chopping knife 2 is equal at an acute angle α up to 25 °, chop off slices 11 from the advanced wood end.

Nach Fig. 2 wird die Holzscheibe 11 auf der Unterlage 12 mittels einer Druck- und Förderwalze vorgeschoben und von dem Hammerrotor 14 zu einzelnen Schnitzeln 15 zerkleinert. Diese Zerkleinerung geschieht erfindungsgemäß durch Abspalten der Schnitzel 15 von der Holzscheibe 11 parallel zur Holzfaser, die ja in einem spitzen Winkel in der Holzscheibe verläuft, der etwa dem Winkel <x in Fig. 1 entspricht.According to FIG. 2, the wooden disc 11 is advanced on the base 12 by means of a pressure and conveying roller and is comminuted by the hammer rotor 14 into individual chips 15. According to the invention, this comminution takes place by splitting off the chips 15 from the wood disk 11 parallel to the wood fiber, which of course runs at an acute angle in the wood disk, which corresponds approximately to the angle <x in FIG.

Claims (1)

Patentanspruch:Claim: Verfahren zur Herstellung von im Parallelogramm-Querschnitt einander ähnlichen Hackschnitzeln aus faserparallel vorgeschobenem Holz mittels hin und her bewegter oder rotierender Hackmesser, dadurch gekennzeichnet, daß zunächst mit der Schneide eines ebenen Hackmessers die Holzfasern des zu zerkleinernden Holzes in einem spitzen Winkel von 10 bis 25° durchgetrennt und anschließend aus den einzelnen abgetrennten Holzscheiben durch Spalten mittels eines Hammerrotors Hackschnitzel hergestellt werden.Process for the production of wood chips similar to one another in the parallelogram cross-section made of wood pushed in parallel to the fibers by means of reciprocating or rotating Cleaver, characterized in that initially with the cutting edge of a flat The wood fibers of the wood to be shredded at an acute angle of 10 to Cut through 25 ° and then from the individual cut wooden slices by splitting wood chips are produced by means of a hammer rotor. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEH56223A 1965-06-04 1965-06-04 Process for the production of wood chips that are similar to one another in cross-section Pending DE1223529B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH56223A DE1223529B (en) 1965-06-04 1965-06-04 Process for the production of wood chips that are similar to one another in cross-section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH56223A DE1223529B (en) 1965-06-04 1965-06-04 Process for the production of wood chips that are similar to one another in cross-section

Publications (1)

Publication Number Publication Date
DE1223529B true DE1223529B (en) 1966-08-25

Family

ID=7159306

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH56223A Pending DE1223529B (en) 1965-06-04 1965-06-04 Process for the production of wood chips that are similar to one another in cross-section

Country Status (1)

Country Link
DE (1) DE1223529B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1488898A1 (en) * 2003-06-18 2004-12-22 Kay Brandenburg Wood particle mixture for a wood-plastic composite material and process for producing the wood particle mixture

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1488898A1 (en) * 2003-06-18 2004-12-22 Kay Brandenburg Wood particle mixture for a wood-plastic composite material and process for producing the wood particle mixture
DE10327848A1 (en) * 2003-06-18 2005-01-13 Kay Brandenburg Wood particle mixture for a wood-plastic composite and method for producing the wood particle mixture
DE10327848B4 (en) * 2003-06-18 2006-12-21 Kay Brandenburg Wood particle mixture for a wood-plastic composite and method for producing the wood particle mixture
US7998580B2 (en) 2003-06-18 2011-08-16 Brandenburg Holzfasertoffe GmbH & Co. Wood particle mixture for a wood-plastic composite material and method for producing the wood particle mixture

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