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US3266538A - Apparatus for peeling and disintegrating of veneer - Google Patents

Apparatus for peeling and disintegrating of veneer Download PDF

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Publication number
US3266538A
US3266538A US318750A US31875063A US3266538A US 3266538 A US3266538 A US 3266538A US 318750 A US318750 A US 318750A US 31875063 A US31875063 A US 31875063A US 3266538 A US3266538 A US 3266538A
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US
United States
Prior art keywords
veneer
cutter
peeling
support
rollers
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.)
Expired - Lifetime
Application number
US318750A
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English (en)
Inventor
Sarv Nils Hugo
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.)
JOENKOEPING VULCAN AB
JONKOPING-VULCAN AB
Original Assignee
JOENKOEPING VULCAN AB
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 JOENKOEPING VULCAN AB filed Critical JOENKOEPING VULCAN AB
Application granted granted Critical
Publication of US3266538A publication Critical patent/US3266538A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor
    • B27L5/02—Cutting strips from a rotating trunk or piece; Veneer lathes
    • 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
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor
    • B27L5/08—Severing sheets or segments from veneer strips; Shearing devices therefor; Making veneer blanks, e.g. trimming to size
    • 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
    • B27L9/00—Manufacture of wooden sticks, e.g. toothpicks

Definitions

  • This invention relates to an apparatus for the peeling and disintegrating of veneer which is fed in a single layer to a cutter directly associated with the veneer peeling knife and by means of which the peeled veneer is cut, e.g. into match splints, .or blanks for inner or outer boxes.
  • This apparatus preferably comprises a rotatable cutter directly associated with the veneer peeling knife, and feeding means located between said peeling knife and said cutter and adapted to advance a single layer of freshly peeled veneer from the peeling knife to the cutter.
  • a primary object of the invention is to reduce the costs at the disintegration of veneer into match splints or blanks for inner or outer boxes by reducing wastage and manual labour.
  • Another object of the invention is to facilitate further automation of the manufacture of matches.
  • An apparatus is primarily characterized in that the feeding means comprise a hollow support for the veneer, said support having its interior connected to a source of compressed fluid and having a plurality of fine holes which extend from said hollow interior of the support to the upper face thereof in a direction which is in substantial concert with the feed direction of the veneer.
  • FIG. 1 is a cross sectional view showing the main features of the apparatus according to the invention, and a log from which veneer is being peeled;
  • FIG. 2 is a cross sectional view of the feeding means as seen in the direction of the arrows IIII in FIG. 3 and part of the cutter according to the invention;
  • FIG. 3 is a schematic partial section along the line III-III in FIG. 2; and I FIGS. 4 and 5 illustrate details of the feeding means as seen in the direction of the arrows IVIV and VV respectively in FIG. 3.
  • FIG. 1 a log 1 from which veneer 2 is being peeled by means of the knife 3 is rotated in the direction of the arrow 4 by means of driving means, not shown.
  • the log 1 may be rotated by a device according to the US. Patent application Number 306,728, filed September 5, 1963, and the veneer peeling knife may be of the kind disclosed in the US. Patent Number 3,224,477, dated December 21, 1965.
  • a feeding device which is generally designated 5 and is most clearly shown in FIG. 2 the veneer 2 is advanced to a cutter 7 which rotates on an axis 6 and is enclosed in a housing 8.
  • the cutter comprises knives 13 by means of which the veneer divided into strips is cut to splints 9.
  • a pair of levers 14 which jointly carry a pressure bar 15 coopcrating with the veneer peeling knife are rigidly connected to the pivots 12. Rigidly connected to one of the pivots 12 is further a second lever 16 which is coupled to a plunger of a pneumatic cylinder 17 by means of which the pressure bar may be swung away, so that the veneer peeling knife 3 will be accessible for cleaning and sharpening. That part of the apparatus which is located above line 19 and to the right of the knife 3 in FIG. 1 may be swung up in a clock-wise direction around the axis 20, so as to make the cutter 7 accessible for inspection or replacement.
  • FIG. 2 illustrates the feeding device 5 and a part of the cutter 7 on a larger scale, and FIGS. 3, 4 and 5.
  • the cutter 7 which is assumed to rotate in the direction of the arrow 22 and of which only part is shown in FIG. 2 cuts the veneer 2 into splints 9 by means of the knives 13.
  • These are removably se-' cured to the cutter body by means of knife holders 23 which in their turn are bolted to the cutter body by means of screw bolts 24.
  • the edges of the knives 13 project beyond the circumferential surface of the cutter body a distance which is in concert with the thickest splints to be manufactured.
  • the thickness of the splints (in the feed direction of the veneer) is suitably controlled by adjustment of the rotational speed of the cutter which may be continuously adjustable, e.g. between 700 r./m. and 3000 r./m. which corresponds to 9.2 m./sec. and 39.4 m./sec., respectively.
  • the feed velocity of the veneer may amount to O.5-l.0 m./sec. 0.7 m./sec. is a suitable value.
  • the feeding device comprises an upper feeding roller 26, which is rotatable in the direction of the arrow 27 on an 'axis 28 (FIG. 3) and has its circumferential surface formed of a plurality of small rollers 29.
  • the roller 26 is divided into a number of sections separated by lancet knives 30.
  • Cooperating with the roller 26 is a lower feeding roller 31 which is rotatable in the direction of the arrow 32 on an axis 33 (FIG. 3) and has its circumferential surface formed by a plurality of small rollers 34.
  • the roller 31 is divided into a number of sections separated by discs 35.
  • the rollers 29, 34 advance the veneer 2 between themselves in the direction of the arrow 36 (FIG. 2) while the lancets 30 in cooperation with the discs 35 and the adjacent edges of the rollers 34 divide the veneer into narrower strips having a width corresponding to the desired splint length.
  • bell crank levers 38 which are interconnected by a bridge 39 and together therewith are rockable as one unit on the axis 28 (FIG. 3).
  • the bell cranks are biased in the clockwise direction by a tension spring 40 having one of its ends attached to the wall 10 and its other end secured to a bolt 41 which is screwed into the bridge 39. Its right hand limit position which is adjustable is determined by a bolt 42 screwed into the wall 10.
  • a shaft 43 is rotatably secured which is rotated in the direction of the arrow 44 by the roller 26 through a belt or chain or the like (not shown).
  • Rigidly secured to the shaft 43 are a plurality of rollers 45 which are pressed against the top side of the veneer strips 2 by the spring 40 to advance the strips towards the cutter 7.
  • a holding down plate 47 and a supporting plate 48 located below the holding down plate 47 are arranged behind the feeding rollers 26, 31 as seen in the direction of travel of the veneer 2.
  • the holding down plate 47 which is substantial ly comb-shaped as seen in plan view (FIG. 4) has teeth 49, 50 which are separated by tooth spaces 51 and 52 respectively.
  • the tooth spaces 51, 52 form recesses for the feed rollers 29 and 45 respectively which engage the top face of the veneer.
  • the supporting plate 48 (FIGS. 2 and is substantially comb-shaped as seen in plan view and has teeth 53 and tooth spaces 54 which latter constitute recesses for the feeding rollers 34 engaging the lower face of the veneer.
  • the supporting plate 48 is hollow and contains a channel system comprising a main duct 56 and branch ducts 57.
  • the main duct is connected to a compressor or another source of fluid pressure from which air or gas is supplied in the direction of the arrow 59, and the branch ducts 57 extend into the teeth 53.
  • a great number of fine holes or nozzles 58 extend from the branch ducts 57 and open into the top face of the supporting plate 48.
  • the nozzles 58 are inclined and directed forward towards the cutter 7 and lie in planes which are substantially perpendicular to the axes of rotation of the rollers 26, 31, 43, so that the air or gas jets issuing from the nozzles promote the feeding of the veneer and blow small veneer pieces having a length less than the spacing between the rollers 45 on the one hand and the common axial plane of the rollers 29, 34 or the trajectory of the edges of the knives 13 on the other hand and thus not being able to become advanced by the rollers 45, to the cutter.
  • the veneer On their very short way from the veneer peeling knife 3 to the rollers 29, 34, the veneer is guided by vanes or guiding plates (not shown), and the splints 9 produced by the cutter 7 are conducted directly from the outlet of the housing 8 to the succeeding station of treatment, eg a bath of phosphoric acid.
  • Apparatus for the peeling and desintegrating of veneer comprising a veneer peeling knife, a rotatable cutter and feeding means located between said peeling knife and said cutter for advancing a single layer of freshly peeled veneer from said peeling knife to said cutter, said feeding means comprising a hollow support for the veneer, said support having its interior connected to a source of compressed fluid and having a plurality of nozzles extending from said hollow interior of the support to the upper face thereof in a direction which is in substantial concert with the feed direction of the veneer, and a hold down plate parallel to the upper face of said hollow support and so spaced from said hollow support that the freshly peeled veneer is firmly supported by the hold down plate and the hollow support while said veneer is being advanced to the cutter.
  • Apparatus for the peeling of veneer and for cutting said veneer into equal-sized pieces comprising a veneer peeling device, a rotatable cutter carrying cutting knives, and feeding means located between said peeling device and said rotatable cutter for advancing a single layer of freshly peeled veneer to said rotatable cutter, said feeding means comprising a hollow support for supporting the surface of said veneer which'is opposite to the direction of movement of the knives of said rotatable cutter, said support having its hollow interior connected to a source of fluid and having a plurality of nozzles extending from said hollow interior of the support to the supporting face thereof in a direction which is in substantial concert with the feed direction of the veneer and towards the direction of the cutter, and hold down means for holding said veneer in a firmly supported position against the hollow support while it is being advanced by said feeder means and cut by said rotatable cutter.
  • said hold down means comprises a comb-shaped plate having spaced teeth extending in planar alignment with said plate and tooth spaces between said teeth, and a plurality of spaced circular knives extending into the tooth spaces between said plate and through said veneer so as to slice said veneer into predetermined widths prior to cutting said veneer with the rotatable cutter.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Manufacture Of Wood Veneers (AREA)
US318750A 1962-10-24 1963-10-24 Apparatus for peeling and disintegrating of veneer Expired - Lifetime US3266538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1139562A SE218457C1 (xx) 1962-10-24 1962-10-24

Publications (1)

Publication Number Publication Date
US3266538A true US3266538A (en) 1966-08-16

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ID=20293885

Family Applications (1)

Application Number Title Priority Date Filing Date
US318750A Expired - Lifetime US3266538A (en) 1962-10-24 1963-10-24 Apparatus for peeling and disintegrating of veneer

Country Status (9)

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US (1) US3266538A (xx)
BE (1) BE638984A (xx)
CH (1) CH419575A (xx)
DE (1) DE1291101B (xx)
DK (1) DK102935C (xx)
FR (1) FR1372324A (xx)
GB (1) GB982230A (xx)
NL (1) NL299698A (xx)
SE (1) SE218457C1 (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650480A (en) * 1969-04-29 1972-03-21 Thermoform Ag Method and an apparatus for producing wood wool
CN107097318A (zh) * 2017-07-06 2017-08-29 山东百圣源集团有限公司 数控无卡轴旋切机
CN107097317A (zh) * 2017-07-06 2017-08-29 山东百圣源集团有限公司 数控无卡轴旋切机板压尺装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US244154A (en) * 1881-07-12 Veneer-cutting machine
US1473545A (en) * 1921-10-24 1923-11-06 William H Collier Splint machine
US1651096A (en) * 1926-01-22 1927-11-29 Molins Walter Everett Mechanism for severing moving webs into lengths
US2639487A (en) * 1951-08-30 1953-05-26 Owens Corning Fiberglass Corp Air blower for linearly feeding a continuous strand
DE1125259B (de) * 1956-11-06 1962-03-08 Otto Junker Fa Saumfuehrung an Besaeumscheren

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1135097A (fr) * 1955-11-02 1957-04-24 Commergnat Guilliet & Cie Soc Machine à déchiqueter des lamelles de bois ou matières similaires

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US244154A (en) * 1881-07-12 Veneer-cutting machine
US1473545A (en) * 1921-10-24 1923-11-06 William H Collier Splint machine
US1651096A (en) * 1926-01-22 1927-11-29 Molins Walter Everett Mechanism for severing moving webs into lengths
US2639487A (en) * 1951-08-30 1953-05-26 Owens Corning Fiberglass Corp Air blower for linearly feeding a continuous strand
DE1125259B (de) * 1956-11-06 1962-03-08 Otto Junker Fa Saumfuehrung an Besaeumscheren

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650480A (en) * 1969-04-29 1972-03-21 Thermoform Ag Method and an apparatus for producing wood wool
JPS518240B1 (xx) * 1969-04-29 1976-03-15
CN107097318A (zh) * 2017-07-06 2017-08-29 山东百圣源集团有限公司 数控无卡轴旋切机
CN107097317A (zh) * 2017-07-06 2017-08-29 山东百圣源集团有限公司 数控无卡轴旋切机板压尺装置
CN107097317B (zh) * 2017-07-06 2022-07-22 山东百圣源集团有限公司 数控无卡轴旋切机板压尺装置

Also Published As

Publication number Publication date
NL299698A (xx) 1965-08-25
SE218457C1 (xx) 1968-01-23
DK102935C (da) 1965-10-25
DE1291101B (de) 1969-03-20
GB982230A (en) 1965-02-03
FR1372324A (fr) 1964-09-11
BE638984A (xx) 1964-12-17
CH419575A (de) 1966-08-31

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