EP4091782B1 - Cutting and splitting machine - Google Patents

Cutting and splitting machine Download PDF

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Publication number
EP4091782B1
EP4091782B1 EP22162373.9A EP22162373A EP4091782B1 EP 4091782 B1 EP4091782 B1 EP 4091782B1 EP 22162373 A EP22162373 A EP 22162373A EP 4091782 B1 EP4091782 B1 EP 4091782B1
Authority
EP
European Patent Office
Prior art keywords
splitting
cutting
guides
guard
rectangular frame
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.)
Active
Application number
EP22162373.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4091782A1 (en
Inventor
Tilen Skok
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.)
Uniforest doo
Original Assignee
Uniforest doo
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 Uniforest doo filed Critical Uniforest doo
Priority to SI202230021T priority Critical patent/SI4091782T1/sl
Publication of EP4091782A1 publication Critical patent/EP4091782A1/en
Application granted granted Critical
Publication of EP4091782B1 publication Critical patent/EP4091782B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • B27L7/06—Arrangements for splitting wood using wedges, knives or spreaders

Definitions

  • the invention relates to a cutting and splitting machine according to the preamble of claim 1.
  • a cutting and splitting machine is known from the document EP3205467A2 .
  • the cutting and splitting machine has a section for cutting sawlog into individual pieces and a section for splitting sawlog pieces into chopped wood.
  • the splitting unit is usually configured as a rectangular frame with different arrangements of the splitting knives. By moving the frame vertically and/or horizontally in the machine housing, the choice of knife is adapted to a respective sawlog thickness.
  • a splitting trough is usually V-shaped, so that the centre of the sawlog is vertically aligned in cross-section with the tapered bottom of the trough.
  • the horizontal movement selects the appropriate knife and the vertical movement centres the knife based on the thickness of the sawlog.
  • This variant allows a low machine height and a low distance of the splitting trough from the ground, but has a disadvantage in that the machine width is larger and the guidance of the rectangular frame with the splitting knives is complicated, as it has to be moved in both vertical and horizontal directions.
  • the frame In the vertical arrangement of the rectangular frame with the splitting knives, the frame thus needs to be adjusted to the thickness of the sawlog only in height, i.e. by vertically moving the rectangular frame.
  • Such a variant allows for a small machine width and also a relatively low machine operating position, but has a disadvantage lying in that a piece of chopped wood can get wedged between the knife and the chopped wood discharge conveyor, blocking the movement of the rectangular frame with the splitting knives.
  • Prior art discloses a cutting and splitting machine having a vertically movable rectangular frame with splitting knives, under which a guard is arranged to prevent a piece of chopped wood from entering the area between the rectangular frame with the splitting knives and the chopped wood discharge conveyor. This prevents unwanted blocking of the movement of the rectangular frame and has a disadvantage in that the height of the machine is increased and so is the height of the machine operating position.
  • the cutting and splitting machine can be configured as a stationary machine as part of a line for processing sawlog into chopped wood or as a mobile machine that can be moved by tractor to a work site, e.g. to a temporary sawlog storage area. Tractor-drawn traction of the cutting and splitting machine is usually associated with narrow and uneven paths, requiring small machine dimensions and a low machine centre of gravity for safe driving. In any case, it is also desirable to keep the operating position of the machine as low as possible. A short distance of the platform, from which the operator controls and operates the machine, from the ground makes it easier for the operator to climb the platform, no steps are needed.
  • the technical problem is how to configure a smooth-running cutting and splitting machine with a vertically movable rectangular frame with splitting knives, which will have a relatively low height and low centre of gravity, and consequently a low operating point and a low sawlog infeed.
  • a lower cutting and splitting machine can be configured, i.e. having a lower centre of gravity, a lower operating point and a lower sawlog infeed.
  • a cutting and splitting machine 1 comprising:
  • the fixed 9 and movable 10 guards are preferably made of bent sheet metal.
  • the fixed guard has a pair of fixed guard guides 11, on which the movable guard 10 is vertically movable by means of a pair of movable guard guides 14.
  • Each of the pair of fixed guard guides has a lower stop 12 at the lower end, which is capable of engaging a first attachment piece 13 formed at the upper end of each of the pair of the movable guard guides.
  • the lower stop 12 limits the maximum extraction of the movable guard 10 from the fixed guard 9.
  • Each of the pair of guides 14 of the movable guard has a vertical guide-limiting groove 15 which can engage a second attachment piece 16 mounted on the machine frame.
  • the guide-limiting groove 15 defines the extreme positions of movement of the movable guard relative to the fixed guard.
  • the movable guard 10 When the rectangular frame 5 with the splitting knives is in its upper position, the movable guard 10 is extracted from the fixed guard 9, the two first attachment pieces 13 of the movable guard resting on the lower stops 12 of the fixed guard. As the rectangular frame 5 with the cutting knives is lowered, two second attachment pieces 16 slide in the guide-limiting grooves 15 of the movable guard until they reach the upper edge 15a of the guide-limiting grooves. When the rectangular frame with the splitting knives is lowered further, the movable guard 10 starts to move relative to the fixed guard 9 until the final retracted position is reached. When lifting the rectangular frame with the splitting knives, the process is reversed, with the force of gravity forcing the movable guard into the lower position.
  • the cutting and splitting machine may further comprise a deflector 17 mounted on the guides 5 of the rectangular frame with the splitting knives, which serves to guide and facilitate the discharge of chopped wood, for example onto a conveyor belt. If the cutting and splitting machine is used with a chopped wood discharge conveyor, it is recommended that it is placed as close to the machine as possible so that chopped wood is discharged from the splitting area as quickly as possible.
  • Said at least one hydraulic cylinder 8 is detachably connected to the rectangular frame 6 with the splitting knives, and the two second attachment pieces 16 are also separable from the movable guard by means of a lever arm 18 with a lever mechanism, thereby releasing the rectangular frame with the splitting knives and allowing it to be replaced if necessary.
  • the cutting and splitting machine according to the invention may be further equipped with a discharge conveyor 19 hingedly connected to the machine frame.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
EP22162373.9A 2021-04-08 2022-03-16 Cutting and splitting machine Active EP4091782B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI202230021T SI4091782T1 (sl) 2021-04-08 2022-03-16 Rezalno cepilni stroj

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI202100074A SI26188A2 (sl) 2021-04-08 2021-04-08 Rezalno cepilni stroj

Publications (2)

Publication Number Publication Date
EP4091782A1 EP4091782A1 (en) 2022-11-23
EP4091782B1 true EP4091782B1 (en) 2023-11-15

Family

ID=80785003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22162373.9A Active EP4091782B1 (en) 2021-04-08 2022-03-16 Cutting and splitting machine

Country Status (3)

Country Link
EP (1) EP4091782B1 (sl)
FI (1) FI4091782T3 (sl)
SI (2) SI26188A2 (sl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT526500B1 (de) * 2023-04-19 2024-04-15 Posch Gmbh Vorrichtung zum Sägen und Spalten von Holz

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2856949B1 (fr) * 2003-07-02 2006-08-25 Aficor Sa Machine a fendre des troncons allonges de bois
FI127592B (en) * 2016-02-10 2018-09-28 Ylistaron Teraestakomo Oy Rear-facing fire engine

Also Published As

Publication number Publication date
SI26188A2 (sl) 2022-10-28
SI4091782T1 (sl) 2024-03-29
FI4091782T3 (fi) 2024-01-26
EP4091782A1 (en) 2022-11-23

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