WO1986001452A1 - Method and device for splitting chipboard - Google Patents

Method and device for splitting chipboard Download PDF

Info

Publication number
WO1986001452A1
WO1986001452A1 PCT/NO1985/000052 NO8500052W WO8601452A1 WO 1986001452 A1 WO1986001452 A1 WO 1986001452A1 NO 8500052 W NO8500052 W NO 8500052W WO 8601452 A1 WO8601452 A1 WO 8601452A1
Authority
WO
WIPO (PCT)
Prior art keywords
knife
board
jaws
splitting
chipboard
Prior art date
Application number
PCT/NO1985/000052
Other languages
French (fr)
Inventor
Halftan Nilsen
Rune Nilsen
Original Assignee
Halftan Nilsen
Rune Nilsen
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 Halftan Nilsen, Rune Nilsen filed Critical Halftan Nilsen
Publication of WO1986001452A1 publication Critical patent/WO1986001452A1/en
Priority to DK183686A priority Critical patent/DK152264C/en
Priority to FI861823A priority patent/FI861823A0/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/02—Manufacture or reconditioning of specific semi-finished or finished articles of roofing elements, e.g. shingles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L7/00—Arrangements for splitting wood

Definitions

  • This invention relates to a method for splitting chipboard so as to obtain two sections, each having the same area as the original board.
  • the board is split in such a way that the surface texture of each section is determined by the manner in which the glued fibres are torn apart from one another.
  • this invention relates to a device which allows this splitting to be effected in accordance with this method.
  • the latest developments in design for interior and exterior cladding and panelling materials for houses and buildings show a clear tendency towards the choice of natural products such as stone or timber and wood. This has in turn affected the amount of selection and varieties available in surface texture and aspect. Clients are no longer satisfied with plain wood panelling or painted chipboard.
  • US-3.554.250 presents a method and a device for feeding a board or a piece of solid wood against a saw blade and thus divide the board into two parts, each part having a sloping surface.
  • Figure 1 Wedge-shaped knife which splits a piece of chipboard, and rollers which feed the board towards the knife.
  • FIG. 1 This shows the design of the knife itself, its edge and how it is held between jaws.
  • FIG. 4 This figure shows the movement effected by the knife.
  • Figure 1 shows how a set of rollers (3) feed a piece of chipboard (2) towards a wedge-shaped knife (1) so that the feeding speed remains even and the board can be directed at a correct angle against the knife (1).
  • These rollers exert a constant pressure on the board (2), thus preventing the formation of cracks.
  • the board (2) is split into two sections, not by a cutting action but by a wedging action. The surface texture of those two sections will depend on how the fibres, which are glued together, will tear away from one another to give a rough and uneven surface.
  • the knife (1) is sharpened with a constantly increasing angle towards the blade edge. This is meant to give a wedge effect. See figure 1.
  • the knife is undulated in both the horizontal and vertical planes. It is fixed between a set of jaws (4). These are connected to vibrators which impart a rotating motion to the knife(1) in its main plane.
  • Figure 4 shows how this rotating motion is imparted to the knife (1) .
  • Figure 3 illustrates how the knife (1) positioned against the edge of the board (2) starts its splitting action as the wavy edge is directed into the board.
  • the knife will then respond with an undulatory tension between the jaws (4). This increases the splitting effectiveness and reduces the risks of planing the split surfaces down.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Stringed Musical Instruments (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

A method for splitting boards, chiefly chipboard, in order to obtain two equal-size sections whose surfaces present a rough and decorative texture, and a device which operates in accordance with this method. The board is directed between two rollers (3) against a wedge-shaped knife (1) which is fixed between two jaws (4). The jaws (4) impart a rotating motion to the knife (1) in its main plane. These jaws (4) are set at a small angle to the main plane of the knife (1) so that in addition to the rotating motion the knife also moves in an undulatory motion perpendicular to the direction of rotation.

Description

1 -
METHOD AND DEVICE FOR SPLITTING CHIPBOARD
This invention relates to a method for splitting chipboard so as to obtain two sections, each having the same area as the original board. The board is split in such a way that the surface texture of each section is determined by the manner in which the glued fibres are torn apart from one another. In addition, this invention relates to a device which allows this splitting to be effected in accordance with this method. The latest developments in design for interior and exterior cladding and panelling materials for houses and buildings show a clear tendency towards the choice of natural products such as stone or timber and wood. This has in turn affected the amount of selection and varieties available in surface texture and aspect. Clients are no longer satisfied with plain wood panelling or painted chipboard.
Many clients now want textured surfaces such as various forms of surface structuring. This is especially used on solid wood panelling. Another method is the use of decorative film glued onto chipboard. Various types of chipboard now seriously compete with solid wood panelling. One of the reasons for this is that chipboard does not shrink to the same extent when drying.
Another alternative to decorative film and painted surfaces is the mechanical imprint of patterns on the board surface to obtain a decorative effect. This method is described in
US-3.726.328 where a board or a solid wood panel can be given a rustic appearance by means of this mechanical imprint.
US-3.554.250 presents a method and a device for feeding a board or a piece of solid wood against a saw blade and thus divide the board into two parts, each part having a sloping surface.
Their cross-section is then a right-angled triangle. As the tool used is a saw blade which moves in one plane only, the cut surfaces will therefore be smooth. The present method and device make it possible to split chipboard into two sections in such a way that the split surfaces will have an irregular texture. The splitting is effected more by tearing than by cutting. The surfaces separate according to the weaknesses in fibre bonds.
This is done by means of a wedge-shaped knife having an edge which is neither straight, nor has the same setting angle at the outer edge as further inwards. The knife does not move perpendicularly like an ordinary saw blade, but with a rotating motion in the plane of the knife's surface.
The splitting method and a performance example of the device used to put this method into practice are illustrated in figures 1 to 5.
Figure 1. Wedge-shaped knife which splits a piece of chipboard, and rollers which feed the board towards the knife.
Figure 2. This shows the design of the knife itself, its edge and how it is held between jaws.
Figure 3. The knife is driven into the edge of the board.
Figure 4. This figure shows the movement effected by the knife.
Figure 5. Jaws set in a tilted position.
Figure 1 shows how a set of rollers (3) feed a piece of chipboard (2) towards a wedge-shaped knife (1) so that the feeding speed remains even and the board can be directed at a correct angle against the knife (1). These rollers exert a constant pressure on the board (2), thus preventing the formation of cracks. The board (2) is split into two sections, not by a cutting action but by a wedging action. The surface texture of those two sections will depend on how the fibres, which are glued together, will tear away from one another to give a rough and uneven surface.
The knife (1) is sharpened with a constantly increasing angle towards the blade edge. This is meant to give a wedge effect. See figure 1. The knife is undulated in both the horizontal and vertical planes. It is fixed between a set of jaws (4). These are connected to vibrators which impart a rotating motion to the knife(1) in its main plane. Figure 4 shows how this rotating motion is imparted to the knife (1) .
Figure 3 illustrates how the knife (1) positioned against the edge of the board (2) starts its splitting action as the wavy edge is directed into the board. When the knife (1) has reached so far into the board that its back edge also reaches between the two sections of the board, these are then wedged apart from one another.
If one tilts the jaws (4) at an angle to the main plane of the knife (l), the knife will then respond with an undulatory tension between the jaws (4). This increases the splitting effectiveness and reduces the risks of planing the split surfaces down.

Claims

1. Method of splitting boards in order to obtain two sections, each having the same area as the original board, in which the board is fed between rollers, characterized in that the board (2) is directed against a knife (1) which rotates in its main plane, which plane is parallel to the surface plane of the board (2), while the knife (1) is imparted with an undulatory motion perpendicular to its main plane.
2. Device for splitting board (2) in accordance with the method under claim 1, characterized by a wedge-shaped knife (1) which has an undulated edge in both the horizontal and vertical planes, the said knife being fixed between two jaws (4) which impart a rotating motion to the knife (1), the said jaws being set at a small angle to the horizontal, which setting in turn gives the knife (1) an undulating motion perpendicular to the direction of rotation.
PCT/NO1985/000052 1984-08-30 1985-08-30 Method and device for splitting chipboard WO1986001452A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK183686A DK152264C (en) 1984-08-30 1986-04-22 METHOD AND KNIFE FOR CLIPPING FIBER PLATES.
FI861823A FI861823A0 (en) 1984-08-30 1986-04-30 SAETT OCH ANORDNING FOER KLYVNING AV FIBERSKIVA.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO843442 1984-08-30
NO843442A NO155917C (en) 1984-08-30 1984-08-30 PROCEDURE AND DEVICE FOR CLIFTING FIBER PLATES.

Publications (1)

Publication Number Publication Date
WO1986001452A1 true WO1986001452A1 (en) 1986-03-13

Family

ID=19887813

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1985/000052 WO1986001452A1 (en) 1984-08-30 1985-08-30 Method and device for splitting chipboard

Country Status (4)

Country Link
EP (1) EP0193559A1 (en)
DK (1) DK152264C (en)
NO (1) NO155917C (en)
WO (1) WO1986001452A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776376A (en) * 1985-12-23 1988-10-11 Jaeger Troels A Wood slicing machine
US6289953B1 (en) * 1998-06-01 2001-09-18 Meinan Machinery Works, Inc. Splitting apparatus

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE351159C (en) * 1921-11-30 1922-04-01 David Loewy & Soehne Process for the production of flower and bar veneers
GB178835A (en) * 1921-04-21 1922-07-27 Moteurs Salmson Improvements in wood slicing machines
CH179174A (en) * 1934-08-24 1935-08-31 Gerber Voegeli Gottfried Machine for peeling veneers.
US2128521A (en) * 1937-04-26 1938-08-30 Axel E Beckman Shake-splitting machine
FR969320A (en) * 1948-07-12 1950-12-19 Nat Molinor S A Improvements to machines for peeling and slicing veneer wood
US2704093A (en) * 1954-01-20 1955-03-15 Pacific Shake & Shingle Compan Guillotines adapted for use in splitting shakes
US2839105A (en) * 1956-01-20 1958-06-17 Harvey A Gantenbine Shake riving machines
US2851072A (en) * 1956-07-16 1958-09-09 Harry H Gerjets Wood splitting machine
DE1151650B (en) * 1958-03-13 1963-07-18 Inst Holztechnologie Scraper machine
GB1113669A (en) * 1965-12-31 1968-05-15 Exnii Metallorezh Stankov A tool for machines for contour machining of shaped surfaces
FR1538353A (en) * 1967-04-25 1968-09-06 I P I R Di Natale Zangheri Manufacturing process of veneer sheets imitating precious wood species and resulting products
US3407855A (en) * 1965-12-15 1968-10-29 Lloyd I. Ritchie Blank-splitting device
FR2014062A1 (en) * 1968-07-31 1970-04-10 Bauwerk Bodenbelagsind Ag
US4289179A (en) * 1978-10-26 1981-09-15 Meinan Machinery Works, Inc. Veneer reinforcing unit and a veneer reinforcing device using the same
EP0080408A1 (en) * 1981-11-19 1983-06-01 Antony Claux Shingle making machine

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB178835A (en) * 1921-04-21 1922-07-27 Moteurs Salmson Improvements in wood slicing machines
DE351159C (en) * 1921-11-30 1922-04-01 David Loewy & Soehne Process for the production of flower and bar veneers
CH179174A (en) * 1934-08-24 1935-08-31 Gerber Voegeli Gottfried Machine for peeling veneers.
US2128521A (en) * 1937-04-26 1938-08-30 Axel E Beckman Shake-splitting machine
FR969320A (en) * 1948-07-12 1950-12-19 Nat Molinor S A Improvements to machines for peeling and slicing veneer wood
US2704093A (en) * 1954-01-20 1955-03-15 Pacific Shake & Shingle Compan Guillotines adapted for use in splitting shakes
US2839105A (en) * 1956-01-20 1958-06-17 Harvey A Gantenbine Shake riving machines
US2851072A (en) * 1956-07-16 1958-09-09 Harry H Gerjets Wood splitting machine
DE1151650B (en) * 1958-03-13 1963-07-18 Inst Holztechnologie Scraper machine
US3407855A (en) * 1965-12-15 1968-10-29 Lloyd I. Ritchie Blank-splitting device
GB1113669A (en) * 1965-12-31 1968-05-15 Exnii Metallorezh Stankov A tool for machines for contour machining of shaped surfaces
FR1538353A (en) * 1967-04-25 1968-09-06 I P I R Di Natale Zangheri Manufacturing process of veneer sheets imitating precious wood species and resulting products
FR2014062A1 (en) * 1968-07-31 1970-04-10 Bauwerk Bodenbelagsind Ag
US4289179A (en) * 1978-10-26 1981-09-15 Meinan Machinery Works, Inc. Veneer reinforcing unit and a veneer reinforcing device using the same
EP0080408A1 (en) * 1981-11-19 1983-06-01 Antony Claux Shingle making machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776376A (en) * 1985-12-23 1988-10-11 Jaeger Troels A Wood slicing machine
US6289953B1 (en) * 1998-06-01 2001-09-18 Meinan Machinery Works, Inc. Splitting apparatus

Also Published As

Publication number Publication date
EP0193559A1 (en) 1986-09-10
NO155917C (en) 1987-06-24
NO155917B (en) 1987-03-16
DK152264B (en) 1988-02-15
NO843442L (en) 1986-04-17
DK152264C (en) 1988-07-11
DK183686D0 (en) 1986-04-22
DK183686A (en) 1986-04-22

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