EP2674268B1 - Notching machine - Google Patents

Notching machine Download PDF

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Publication number
EP2674268B1
EP2674268B1 EP13170815.8A EP13170815A EP2674268B1 EP 2674268 B1 EP2674268 B1 EP 2674268B1 EP 13170815 A EP13170815 A EP 13170815A EP 2674268 B1 EP2674268 B1 EP 2674268B1
Authority
EP
European Patent Office
Prior art keywords
notching
frame
log
cutters
cutter
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.)
Not-in-force
Application number
EP13170815.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2674268A1 (en
Inventor
Esa Pudas
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2674268A1 publication Critical patent/EP2674268A1/en
Application granted granted Critical
Publication of EP2674268B1 publication Critical patent/EP2674268B1/en
Not-in-force 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
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C9/00—Multi-purpose machines; Universal machines; Equipment therefor
    • B27C9/04—Multi-purpose machines; Universal machines; Equipment therefor with a plurality of working spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/08—Making dovetails, tongues, or tenons, of definite limited length

Definitions

  • the invention relates to a notching machine as defined in the preamble of claim 1.
  • a notching machine is disclosed in WO 99/52692 A1 .
  • log notches are made using many different machines and methods.
  • the notch milling is usually carried out by milling cutters which, supported against the frame of the notching machine, move away from their idle position, do the notching and move back into their idle position. It is not rare that opposite notches are made simultaneously to save machining time. It also possible to machine more than one notch at different points on the log at the same time. This necessitates, of course, that the notching machine has more than one milling cutter positionally adjustable relative to each other in the longitudinal direction of the log.
  • machining devices known in the prior art often suffer from the disadvantage that, in solutions with a stationary frame, making a setting can be difficult, that is, when the thickness of the log to be notched changes and the distance between the cutters must be adjusted accordingly, the operator may have to thread his way, wearing a helmet, into the notching machine to adjust the distance between the cutters, which, of course, is very slow and difficult and even dangerous.
  • the objective of the invention is to eliminate the above-mentioned drawbacks.
  • the objective of the invention is to provide a novel notching machine which is as simple as possible and therefore inexpensive to manufacture but which is able to notch fast and efficiently, whose structural solution prevents the cutters from colliding with one another and which, in addition, is easily adjustable to meet different log dimensions.
  • the notching machine according to the invention is defined in what is set forth in claim 1.
  • the notching machine according to the invention is intended to notch logs at the top above, at the bottom and at both sides, i.e. to cut out corner notches in logs intended to intersect each other.
  • the notching machine includes an upper notching cutter, a lower notching cutter and two lateral notching cutters. Further, the notching machine has a body and a log bracket which is supported against the former and on which the log to be machined can be placed immovably. Further, the notching machine includes a rigid frame movable relative to the body in the transverse direction of the log being machined.
  • the notching machine includes an upper notching cutter and a lower nothing cutter supported by the frame to cut out an upper notch and a lower notch, respectively, in the log by moving the frame, as well as lateral notching cutters movably supported by the frame to cut out lateral notches in the log by moving the lateral notching cutters.
  • the notching cutters are preferably positioned on their respective cutter frames in such a way that supporting a cutter against the frame actually means supporting its cutter frame against the frame and in such a way that moving a cutter relative to the frame actually means moving its cutter frame relative to the frame.
  • guides or similar slide rails are mounted between the body and the frame of the notching machine for moving the frame back and forth along them.
  • the upper notching cutter and the lower notching cutter are immobile relative to the frame and at a certain distance from each other. Thus, their position relative to each other only is changed when the log size or the milling cutters are changed. Therefore, it preferably is adequate that only one of the notching cutters, i.e. the upper notching cutter or the lower notching cutter, is provided with adjustment in its frame to allow the distance between them to be adjusted.
  • the lateral notching cutters are also provided with adjustment to allow the distance between them to be adjusted. This makes it possible to process logs of different thicknesses and to adjust the lateral notching cutters accordingly.
  • the notching machine according to the invention has significant advantages in comparison to the prior art.
  • the notching machine according to the invention is extremely simple. Nevertheless, it is able to notch logs very fast because the construction of the notching allows fast machining operations and does not require the cutters to do any returning movements before machining the next notch groove in the same log or in a new log.
  • the notching machine according to the present invention allows the notching operations to be carried out in an opposite order, which results in that the notching speed can be up to twice as high as in conventional notching machines where the milling cutters, after they have done their notching work, must be returned to their positions before the next notching can be performed.
  • An additional significant advantage of the notching machine according to the present invention is that it may be able to completely prevent the pairs of cutters from colliding with one another because the paths of the pairs of cutter do not intersect in any notching step. Thus, it may be possible to avoid the high reparation costs and to shorten the downtime due to service.
  • making a setting i.e. adjusting the distance between the cutters of a pair of cutters
  • makes a setting can be easy because the frame, being movable, can be driven out of the notching machine almost entirely to allow easy access to the cutter settings. This may reduce the time used for adjusting, make the actual adjusting work easier and improve safety.
  • a pair of cutters refers to a unit consisting of two cutters, which cutters are used for making notches in the opposite sides of a log.
  • FIGS 1 to 3 are schematic views of a notching machine according to the invention.
  • the notching machine has a body 5 and a substantially rectangular rigid frame 8 supported thereon.
  • the frame 8 is supported on the body 5 by means of guides 9 to allow the frame to be moved back and forth along the guides, from right to left and back in the figures, relative to the body.
  • a log bracket 6 allowing the log 7 to be machined to be locked in place relative to the body, is supported against the body 5.
  • the log bracket 6 consists, for example, of two angular brackets situated on different sides of the frame 8 in the body 5 so that the log 7 supported on them moves through the opening defined by the frame 8 and lies perpendicular to the frame and its path.
  • the log bracket 6 may include hydraulic, pneumatic or electrical locking devices or clamps to securely hold the log 7 in place while notches are machined in it.
  • a first cutter frame 10 having an upper notching cutter 1 supported thereon is fixed to the upper edge of the frame 8.
  • a second cutter frame 11 having a lower notching cutter 2 supported thereon is mounted on the lower edge of the frame, in an aligned position.
  • the first and the second cutter frames 10 and 11 are both provided with adjustment.
  • the position of the cutters 1 and 2 i.e. the distance between them, can always be adjusted as desired.
  • a third cutter frame 12 and a fourth cutter frame 13 fix the lateral notching cutters 3 and 4 to the upper part of the frame 5, respectively. At least one of the cutter frames 12 and 13 is provided with adjustment to allow the distance between them to be adjusted.
  • the third and the fourth cutter frames 12 and 13 have transfer means and, in the figure, vertical paths to enable them to be moved down and up simultaneously.
  • the lateral notching cutters 3 and 4 can also be fixed to lower part of the frame 5. It is understood by a person skilled in the art that these two embodiments can be combined by fixing one lateral notching cutter to the upper part of frame and the other lateral notching cutter to the lower part of the frame.
  • the notching machine shown in the schematic views 1 to 3 is operated as follows.
  • a log 7 is fixed in place on the log bracket 6 and the point to be notched is aligned with the frame, i.e. the cutters 1, 2, 3 and 4 provided thereon.
  • the upper notching cutter 1 and the lower notching cutter 2 are adjusted to lie at a required distance from each other and at an appropriate height relative to the log 5 supported on the log bracket 6.
  • the lateral notching cutters 3 and 4 are adjusted, in their upper position shown in the figure, to lie at the right distance from each other relative to the log to be processed.
  • the frame 8 is moved to the left in figure 1 in order to move the upper notching cutter 1 and the lower notching cutter 2 across the upper face and the lower face of the log.
  • the cutters 1 and 2 now mill an upper notch and a lower notch, respectively, at a desired point on the log.
  • the log 7 notched at its upper face and its lower face comes out from between the cutters 1 and 2, and as the frame 8 continues to move in the same direction, the log 7 finally reaches the lateral notching cutters 3 and 4 where the frame 8 is stopped. Then, as shown in figure 3 , while the frame is kept in place, the lateral notching cutters 3 and 4 are pressed down the log to give the log its both lateral notches while they pass by the log.
  • the log After the log has been notched at each side, it can be removed from the log bracket 6 and repositioned thereon for the next notch, or replaced with a new log to be notched.
  • the frame 8 and the lateral notching cutters 3 and 4 do not need to be returned to their initial position, i.e. to the position shown in figure 1 .
  • the next notch grooves can be cut out in an opposite order.
  • the lateral notching cutters 3 and 4 are pulled up into their upper position, and, second, the frame 8 is driven to the right. That is, the upper and lower and lateral notches are made in the log in an opposite order. This makes the log machining considerably faster and easier because no machining cutter returning movements are needed.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Manufacture Of Wood Veneers (AREA)
EP13170815.8A 2012-06-15 2013-06-06 Notching machine Not-in-force EP2674268B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20125664A FI125534B (fi) 2012-06-15 2012-06-15 Salvoskone

Publications (2)

Publication Number Publication Date
EP2674268A1 EP2674268A1 (en) 2013-12-18
EP2674268B1 true EP2674268B1 (en) 2016-05-25

Family

ID=48576304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13170815.8A Not-in-force EP2674268B1 (en) 2012-06-15 2013-06-06 Notching machine

Country Status (2)

Country Link
EP (1) EP2674268B1 (fi)
FI (1) FI125534B (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110421653A (zh) * 2019-09-04 2019-11-08 永清霍尔茨门业有限公司 一种锁舌盒孔开槽机
CN112659269B (zh) * 2020-12-11 2022-09-30 宣城宏宇竹业有限公司 一种生物质交通护栏用竹纤维板材的燕尾槽开槽装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1844057A (en) * 1930-10-09 1932-02-09 Leitelt Iron Works Tenoning machine
US3010495A (en) * 1960-02-04 1961-11-28 Harold N Ipsen Log notching machine
FI101273B1 (fi) * 1996-10-16 1998-05-29 Suunnittelupuu Oy Laitteisto uran työstämiseksi puuainekappaleeseen

Also Published As

Publication number Publication date
FI20125664A (fi) 2013-12-16
EP2674268A1 (en) 2013-12-18
FI125534B (fi) 2015-11-13

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