US3844320A - Apparatus for end profiling and glue application in the end bonding of boards - Google Patents

Apparatus for end profiling and glue application in the end bonding of boards Download PDF

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Publication number
US3844320A
US3844320A US00013299A US1329970A US3844320A US 3844320 A US3844320 A US 3844320A US 00013299 A US00013299 A US 00013299A US 1329970 A US1329970 A US 1329970A US 3844320 A US3844320 A US 3844320A
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United States
Prior art keywords
pieces
edges
profiling
alignment
wood
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Expired - Lifetime
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US00013299A
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English (en)
Inventor
E Dimter
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Individual
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Individual
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Filing date
Publication date
Priority to DE1900228A priority Critical patent/DE1900228C3/de
Priority to GB6720/70A priority patent/GB1240988A/en
Priority claimed from GB6720/70A external-priority patent/GB1240988A/en
Application filed by Individual filed Critical Individual
Priority to US00013299A priority patent/US3844320A/en
Application granted granted Critical
Publication of US3844320A publication Critical patent/US3844320A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B27F1/02—Making tongues or grooves, of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • 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
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/002—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected at their ends

Definitions

  • This invention relates to an apparatus for the continuous end profiling and depositing of glue on the ends of pieces of wood to be joined to one another end to end.
  • the invention obviates these drawbacks. It is based on the problem of providing an apparatus for the continuous and profiling of and depositing of glue on pieces of wood of different lengths and approximately the same thickness can be worked on at both ends in a comparatively short time. Furthermore the delivery station of this new apparatus is to be designed such that the individual pieces can be pressed together continuously so that they form an endless band.
  • the individual pieces which may be boards, planks or like pieces of wood are therefore profiled in a pack or en mass their front ends on the work table whereupon the second ends are likewise aligned flush and profiled on the adjacent table by the profiling apparatus. The turning around of the pieces, and the working of each piece separately is thus necessary.
  • the joining of the individual pieces of wood form an endless band which is exceptionally firm when both ends of the pieces are coated with glue.
  • the first ends of the pieces of wood are smeared with glue by means of the said glue depositing apparatus after profiling.
  • the ends of the pieces according to a preferred embodiment of the subject-matter of the invention as well as any flaws in the wood are cut up or cut out approximately at right angles in a lap-saw before their transport to the work table.
  • the pieces after cutting by the lap-saw arrive one after the other via a conveyor belt to a stop actuated by the first ends of the pieces of wood, which stop actuates a working cylinder which pushes the pieces with their first ends flush parallel to one another onto a supply table.
  • the pieces of wood are advantageously under tension on the sup ply table via a counter cylinder acting opposite the working cylinder.
  • At least one other cutter is disposed in front of or behind the milling cutter.
  • This other cutter can saw as well have cutter discs.
  • the tension of the chamfer profile or prong can be adjusted as to how much air is present between the tips of the prong and the base of the prong of the next piece of wood to be glued.
  • the cutter disc cut the waste immediately.
  • two such cutters can be provided which are present in the working place of the ends of the pieces of wood which are then disposed on the work table, and are then clamped on the adjacent table.
  • These two cutters may also be disposed on a common frame whereby it is of advantage if the distance of the two cutters is variable so that they can be adapted to the conditions desired.
  • a step or clamp may be provided which seizes the pack after the working its first and second ends and pushes the pack onto the adjacent table by which transport procedure the second ends of the whole pack are automatically brought flush with one another.
  • the pack of pieces of wood can be conveyed advantageously over a further conveyor apparatus into a press known per se such that the ends of the pieces abut against one another.
  • the pieces of wood are then joined in this press into an endless band.
  • the conveyor apparatus can form from the adjacent table to the conveyor apparatus with the direction of movement of the milling cutter an angle of about 2.
  • a particularly suitable construction of the conveyor apparatus results when this has a conveyor belt with different takers.
  • These takers may thereby be angle profiles rotatable about their common edge which angle profiles at the upper side of the conveyor belt with their lower profile run out to a control bar which aligns the angle profiles.
  • On the underside of the conveyor belt these angle profiles hang freely downwhereby they can rotate freely around their common edge whilst on the upper side of the conveyor belt upon running onto the control rail they align with their upper profile whereby each profile can seize one piece of wood.
  • the pieces of wood actuate advantageously on the conveyor apparatus a contact which via a magnetic coupling sets in motion the conveyor belt conveying to the press. In this way it is ensured that the conveyor belt only runs when a piece of wood is on it.
  • FIG. 1 shows a view of the apparatus according to the invention
  • FIG. 2 shows a longitudinal section through the conveyor apparatus conveying to the press
  • FIG. 3 shows a section through the work table with pieces of wood and spring elements.
  • the individual pieces of wood arrive in the direction of the arrow 1 to a lap-saw 2. There their front or first ends are cut so that these are approximately at right an-' gles to their longitudinal extension. In this lap-saw flaws in the wood can also be cut out.
  • a counter cylinder 11 presses by means of a lever against the working cylinder 6 so that the pieces of wood conveyed in the direction of conveying 10 are always under a certain tension. Hereby their first ends which have been aligned by the stop remain flush.
  • the tension of the pack can also take place by means of the counter cylinder 11 by means of another corresponding arrangement which, for example, from the top and/or from the side, holds together the pack, for example, by means of a brake device.
  • the wood pack is pressed by means of a work cylinder 13 against a stop 12a on the work table 12.
  • a contact 14 is actuated.
  • This contact causes the wood pack to be moved in the direction of the arrow 15 by a certain distance if the work table is full and there is a sufficient pressing pressure.
  • the milling cutter 16 is then moved in the direction of the arrow 17 so that now the chamfers or prongs can be cut on the front or first ends.
  • this milling cutter 18, 19 can be disposed.
  • These cutters have saws and connecting disc which immediately cut the waste.
  • the prong length is capable of being corrected.
  • the prong tension can be adjusted which depends on how much space there is between the tips of the prongs and the base of the prongs of the nextpiece of wood.
  • a combination cutter 20 may also be provided which has discs on both sides. The distance of these two discs from one another is thus suitably adjustable.
  • the bracket thus transports the whole pack onto an adjacent table 38 whereby the rear or second ends 39 are flush with one another.
  • milling cutter 16 which is moved in the direction of the arrow 17 into its position 32.
  • a glue depositing apparatus 40 is then moved likewise in the direction-of the arrow 17. Milling cutters l6 and glue depositing apparatus 40 can also both be conveyed simultaneously.
  • the glue depositing apparatus 40 is moved therefore upon moistening both ends 31, 39 in the direction of the arrow 17 whereby upon depositing on the second end 39 it is only pivoted.
  • the glue depositing apparatus is in this case stationary.
  • the direction of movement of the pieces of wood in the direction of the arrow 42 is displaced by about 1 to 2 degrees in respect of the direction of conveying of the milling cutter 16 so that the pieces of wood do not come into contact with the tool again.
  • the pieces of wood new arrive on the 7 intermediate table 44 from where they are conveyed via a conveyor apparatus into the press 45.
  • the conveyor apparatus has a conveyor belt 46 which conveys in the direction of the arrow 47.
  • FIG. 2 There the case is shown where a piece of wood 48 is seized by a taker 49 of conveyor belt 46.
  • This taker is wider than the prong profile and therefore also conveys in the direction of the arrow 47.
  • the taker pivots around its rotating edge due to the action of gravity into the position 51. It therefore cannot damage the prongs. It then arrives via the driving roller 53 of the conveyor belt 46 to the control bar 54 on the run on plate 55 it runs on with its under edge whereby it is again aligned in its original position.
  • the conveyor apparatus has a contact which serves to release the conveyor belt when this contact is closed by a piece of wood connecting with the stop 57.
  • the magnetic coupling 63 therefore connects the conveyor belt 46 to its driving apparatus, now shown, so that this conveyor belt is always moved when the contact 60 is closed via a wood piece to be conveyed.
  • Apparatus for fabricating boards from pieces of random length comprising means for assembling a plurality of such pieces of random length side by side with the edges of corresponding ends in alignment, means for profiling said aligned edges, means for restraining said pieces against displacement while said aligned edges are being profiled, means, following the profiling of said aligned edges, for shifting said pieces longitudinally in order of their lengths to bring the opposite end edges of said pieces into alignment, and means for pro filing said opposite edges while in alignment.
  • Apparatus in accordance with claim 1 characterized by means for applying a bonding agent to said end edges following the profiling thereof.
  • Apparatus in accordance with claim 1 characterized by means for cutting through said pieces at right angles to the longitudinal axes thereof to remove unusable ends in preparation for aligning and profiling the edges of said pieces.
  • Apparatus in accordance with claim 1 characterizzed by said means for assembling a plurality of such pieces of random length side by side with the edges of corresponding ends in alignment as comprising means including a stop, for feeding successive pieces until the forward end of each strikes said stop, means for then laterally shifting each of said pieces in succession onto a table to form a pack with the forward edges of said pieces in alignment.
  • Apparatus in accordance with claim 1 characterized by means for applying a downward pressure on said pieces of random length, sufficient to overcome frictional drag of the longer pieces against adjacent shorter pieces as said longer pieces are shifted longitudinally to bring their opposite end edges into alignment with the corresponding end edges of adjacent pieces in preparation for profiling said opposite end edges.
  • Apparatus in accordance with claim 2 characterized by means for assembling said pieces in end to end relationship to bond adjacent ends thereof.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
US00013299A 1969-01-03 1970-02-24 Apparatus for end profiling and glue application in the end bonding of boards Expired - Lifetime US3844320A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1900228A DE1900228C3 (de) 1969-01-03 1969-01-03 Vorrichtung zum paketweisen Bearbeiten von Hölzern an deren Stirnseiten
GB6720/70A GB1240988A (en) 1970-02-12 1970-02-12 Improvements in the method and apparatus for profiling pieces of wood
US00013299A US3844320A (en) 1969-01-03 1970-02-24 Apparatus for end profiling and glue application in the end bonding of boards

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1900228A DE1900228C3 (de) 1969-01-03 1969-01-03 Vorrichtung zum paketweisen Bearbeiten von Hölzern an deren Stirnseiten
GB6720/70A GB1240988A (en) 1970-02-12 1970-02-12 Improvements in the method and apparatus for profiling pieces of wood
US00013299A US3844320A (en) 1969-01-03 1970-02-24 Apparatus for end profiling and glue application in the end bonding of boards

Publications (1)

Publication Number Publication Date
US3844320A true US3844320A (en) 1974-10-29

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US00013299A Expired - Lifetime US3844320A (en) 1969-01-03 1970-02-24 Apparatus for end profiling and glue application in the end bonding of boards

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DE (1) DE1900228C3 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3927705A (en) * 1973-08-16 1975-12-23 Industrial Woodworking Mach Methods and means for continuous vertical finger jointing lumber
US4041998A (en) * 1975-03-22 1977-08-16 Wadkin Limited Of Green Lane Works End-jointing of timber
FR2407056A1 (fr) * 1977-10-27 1979-05-25 Ermeca Procede pour rainer les deux extremites de planches de bois et machine le mettant en oeuvre
US4248280A (en) * 1978-12-07 1981-02-03 Taylor Keith A Method and machine structure for finger jointing of lumber
US4856569A (en) * 1986-04-11 1989-08-15 Wadkin Plc Machines for cutting end joints
US5679191A (en) * 1995-07-20 1997-10-21 Robinson; T. Lee Method of fabricating trailer length platform truck flooring
US6701984B2 (en) 1999-12-15 2004-03-09 9069-0470 Quebec Inc. Wood board made of a plurality of wood pieces, method of manufacture and apparatus
US6725891B2 (en) * 2002-02-19 2004-04-27 Pavel Ledinek Machine for profile working of front surfaces on oblong wood workpieces
US11858166B2 (en) * 2022-04-05 2024-01-02 Nanjing Forestry University Unit narrow board glue application device and method suitable for high-frequency hot pressing of solid wood edge glued panel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650558C2 (de) * 1996-12-06 1998-09-17 Klaus Jurisch Verfahren und Vorrichtung zur Herstellung von Verleimprofilen an Hölzern
DE102013109206A1 (de) * 2013-08-26 2015-02-26 Ladenburger Gmbh Verfahren zur Herstellung eines aus mehreren Schnitthölzern bestehenden Konstruktionsschichtholzes sowie Konstruktionsschichtholz

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI22763A (fi) * 1947-05-05 1948-03-12 Svenska Cellulosa Ab Maskin för bearbetning av ändarna på nräder eller liknande
US2868249A (en) * 1956-01-23 1959-01-13 Richard G Taylor Woodworking apparatus
US3179135A (en) * 1962-12-06 1965-04-20 R L Windsor & Son Pty Ltd Machine for finger-jointing boards
US3527274A (en) * 1965-10-22 1970-09-08 Kurt Kramer Continuous dovetailing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI22763A (fi) * 1947-05-05 1948-03-12 Svenska Cellulosa Ab Maskin för bearbetning av ändarna på nräder eller liknande
US2868249A (en) * 1956-01-23 1959-01-13 Richard G Taylor Woodworking apparatus
US3179135A (en) * 1962-12-06 1965-04-20 R L Windsor & Son Pty Ltd Machine for finger-jointing boards
US3527274A (en) * 1965-10-22 1970-09-08 Kurt Kramer Continuous dovetailing machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3927705A (en) * 1973-08-16 1975-12-23 Industrial Woodworking Mach Methods and means for continuous vertical finger jointing lumber
US4041998A (en) * 1975-03-22 1977-08-16 Wadkin Limited Of Green Lane Works End-jointing of timber
FR2407056A1 (fr) * 1977-10-27 1979-05-25 Ermeca Procede pour rainer les deux extremites de planches de bois et machine le mettant en oeuvre
US4248280A (en) * 1978-12-07 1981-02-03 Taylor Keith A Method and machine structure for finger jointing of lumber
US4856569A (en) * 1986-04-11 1989-08-15 Wadkin Plc Machines for cutting end joints
US5679191A (en) * 1995-07-20 1997-10-21 Robinson; T. Lee Method of fabricating trailer length platform truck flooring
US6701984B2 (en) 1999-12-15 2004-03-09 9069-0470 Quebec Inc. Wood board made of a plurality of wood pieces, method of manufacture and apparatus
US6725891B2 (en) * 2002-02-19 2004-04-27 Pavel Ledinek Machine for profile working of front surfaces on oblong wood workpieces
US11858166B2 (en) * 2022-04-05 2024-01-02 Nanjing Forestry University Unit narrow board glue application device and method suitable for high-frequency hot pressing of solid wood edge glued panel

Also Published As

Publication number Publication date
DE1900228C3 (de) 1974-06-27
DE1900228B2 (de) 1973-11-22
DE1900228A1 (de) 1970-09-17

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