US3870090A - Arrangement in planing machines with feeding mechanism comprising at least two rollers - Google Patents

Arrangement in planing machines with feeding mechanism comprising at least two rollers Download PDF

Info

Publication number
US3870090A
US3870090A US342987A US34298773A US3870090A US 3870090 A US3870090 A US 3870090A US 342987 A US342987 A US 342987A US 34298773 A US34298773 A US 34298773A US 3870090 A US3870090 A US 3870090A
Authority
US
United States
Prior art keywords
wood
feeding
bearing
feeding path
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
US342987A
Other languages
English (en)
Inventor
Morten Birger Hasfjord
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.)
SVENSKA IND TABLERINGS SVETAB
SVENSKA INDUSTRIETABLERINGS (SVETAB) SWEDISH INDUSTRIAL ESTABLISHING Corp AB
Original Assignee
SVENSKA IND TABLERINGS SVETAB
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 SVENSKA IND TABLERINGS SVETAB filed Critical SVENSKA IND TABLERINGS SVETAB
Application granted granted Critical
Publication of US3870090A publication Critical patent/US3870090A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/12—Arrangements for feeding work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/002—Means to press a workpiece against a guide

Definitions

  • This compression spring acts between a first bearing located on a first support and an element displaceable in the direction of action of the compression spring in a second bearing which is located on another support, the bearings respectively being pivotable in their pertaining supports while an adjustable counter action device is operable to hold the rollers against the action of the compression spring when no wood is on the feeding path.
  • the present invention relates to an arrangement in planing machines with a feeding mechanism for wood, comprising one pair of feeding rollers being disposed above a feeding path for the wood and being supported in means, which are pivotable around a common pivoting axis disposed in parallel with the rotational axis of the feeding rollers, wherein meansare disposed to permit adjustment of the pressure of the feeding rollers against wood being transported on the feeding path in order to adapt said pressure to the thickness of the wood through swinging movement of the supporting means downwards around the common pivoting axis.
  • the object of the present invention is to provide an arrangement comprising simple and dismountable components, which permit arapid change of worn rollers.
  • Another object is to provide a simple method in attaining the same downwards directed pressure on the two upper rollers.
  • a still further object is to provide an apparatus containing cheap and rugged components.
  • said setting means comprise a compression spring device, which on that side of the common pivoting axis which faces away from the feeding path acts between one first.
  • bearing means located at one support means and an element, which is displaceable in the direction of action of the compression spring device in a second bearing means, located at another supporting means, said bearing means being pivotable in corresponding supporting means around axes being disposed in parallel with the common pivoting axis and that an adjustable counter action device is arranged to hold the rollers against the action of the tension force when no wood is present on the feeding path.
  • FIG. 1 is a side view of one part of the planing machine comprising a feeding mechanism for wood
  • FIG. 2 is a detailed view, partly in section, showing one part of the feeding mechanism. 1
  • the planing machine partly shown in side view in FIG. 1, comprises a machine frame 2.
  • a feeding mechanism 4 being disposed at the supply end of the machine, comprises driven upper and lower feeding rollers 6 and 8, respectively.
  • the lower pair of feeding rollers is partly only indicated with dotted lines.
  • the feeding rollers are operated by means of an electrical motor 9 via a chain transmission or the like in a manner neither shown nor described. Part of this transmission has been indicated in the block 10.
  • the planing machine comprises conventional elements not disclosed such as undercutters, overcutters, sidecutters, a pressing mechanism and the like. 12 designates an undercutter.
  • wood is fed in a direction indicated by the arrow 14 between the pair of feeding rollers 6 and 8, which are transporting the wood to be subject to the different working operations.
  • Each of the upper rollers 6 is rotatably journalled in a housing 16, which in its turn is pivoted on a common pivoting axis 18 in a frame part 20 between the two rollers 6.
  • the driving shafts of the rollers 6 pass through vertically extended slots (not shown in the drawing) in a plate 22 being part of the machine frame 2.
  • the chain transmission is mounted on the back of this plate.
  • the vertically extended slots in the plate 22 permit some swinging movement of the housings 16' and thus the rollers 6 around the pivot axis 18.
  • On the upper side each of the housings 16 is provided with a fork like projection 24.
  • a pressure device 26 with controllable tension acts between these projections and operates in such a manner that it tends to press the two projections 24 apart from each other.
  • the action from the spring device 26 on the housing 16 is counteracted by a vertical support pin 28, which rests with its lower end on the support 30.
  • the support pins 28 are partly provided with threads 32.
  • the support pin 28 is thus screwed through a threaded bore in a portion rigidly connected with the corresponding housing on the inside of said housing, as indicated with reference numeral 34 for the left housing in FIG. 1.
  • the support pin 28 can be located in a certain position relative to the corresponding housing 16 by means of a faucet, not disclosed, which is screwed into engagement with the support pins through the housing.
  • the faucet is operated by means of a handle 36.
  • Each of the support pins 28 is screwed by means of a hand wheel 38.
  • the spring device designated with reference numeral 26 is shown more in detail in FIG. 2.
  • the fork-like projections 24 of the housings 16 are provided with halfcylindrical recesses 40 in the two legs on the two surfaces facing each other.
  • the recess 40 in the fork-like projection ofthe right housing 16 serves as hearing seat for a cylindrical bearing element 42, which is in contact with the two legs.
  • the projection 40 on the left side serves as a seat for a bearing element 44 formed substantially in the same way.
  • the bearing element 42 includes the threaded bore while the bearing element 44 is provided with a smoothed bore.
  • the two bearing elements 42 and 44 are supporting a rod 46, which with a threaded part 48 is screwed through the bearing element 42 and with a smoothed part 50 is slidably passed through the bearing element 44 and thereby simultaneously passes between the fork-like projections.
  • the rod 46 is provided with one stop 52.
  • Another stop 54 is connected to the bearing element 44.
  • the two stops 52 and 54 serve as seats for the ends of a compression spring 56.
  • a hand operated crank 58 is mounted in the threaded end of the rod 46.
  • the contact pressure of the feeding rollers towards a deal fed between the rollers in the direction of the arrow 14 is determined by means of the spring device 26 (elements 48-58) and the value of the pressure can be accuratly set by means of ascale (not shown) showing the rotational position of the rod 46.
  • the support pins 28 support the rollers 6 and their housings 16 through the contact against the support 30 when no wood is located between the feeding rollers 6 and 8 and when wood is introduced the support pins 32 are somewhat lifted up from their supports 30.
  • the support pins 32 also serve to keep the feeding rollers 6 and 8 at such a distance from each other that the introduction of wood between the rollers will be easily effected.
  • the complete spring arrangement 26, comprising the elements 40-58, can be easily dismounted from the position shown, by turning the rod 46 counterclockwise by means of the crank until the bearing elements 42, 44 loose contact with their bearing sets and permit the whole arrangement to be lifted up. This operation takes only a few minutes and the rollers 6 are then easy to dismount.
  • the pressure device disclosed comprises a coil spring but it is of course possible to replace it with some other element providing the same or equivalent effect, for instance a hydraulic oil cylinder.
  • An arrangement in a planing machine with a feeding mechanism for wood comprising a pair of feeding rollers disposed on one side of a feeding path for the wood each roller being supported by a supporting means, both said supporting means being pivotable around a common pivot axis disposed in parallel direction with the rotational axes of the feeding rollers, said feeding rollers having pressure adjustment means associated therewith for setting the pressure of the feeding rollers against wood fed on the feeding path in order to adapt said pressure to the thickness of the wood through swinging movement of said supporting means downwards around the common pivot axis, characterized in that said pressure adjustment means comprises a compression spring device located on the side of the common pivot axis facing away from the feeding path and acting between a first bearing means located at one of said supporting means and a pressure controlling element displaceable in the direction of action of the compression spring device in a second bearing means located at the other supporting means, both of said bearing means being pivotable in the corresponding supporting means around a corresponding axis extending in parallel direction with said common pivot axis, an adjustable counter
  • the compression spring device comprises a helical compression spring acting between said first bearing means and a stop located on a threaded bar forming said pressure controlling element, said bar extending through and in threaded engagement with said second bearing means in alignment with the spring.
  • each lever means pivotally supported in said frame structure around a common pivot axis extending transversely to said feeding path in a plane parallel thereto, each lever means rotatably supporting a corresponding wood feeding roller around a rotational axis extending in parallel to said common pivot axis, a pair of arm means rigidly connected to one of said lever means each and extending away from said feeding path, each arm means having a bearing element rotatably supported around a rotational axis parallel to said pivot axis, a bar extending in parallel to said feeding path through said bearing elements, said bar being threadedly engaged with one of said bearing elements and freely movable in its longitudinal direction through the other bearing element, a helical compression spring extending around said bar between a first stop on said bar at said other bearing element and a second stop on said bar between said bearing elements, means for rotating said bar; means for supporting said lever means against the action of said helical
  • each lever means carries a roller cover rotatably supporting a rotational shaft for the corresponding wood feeding roller and carrying a corresponding one of said arms means, said means for supporting said lever means against the action of said helical spring compris- 6 the rotational axes of the two bearing elements and said common pivot axis are located in the end points of the base line and in the top point of an isosceles triangle, respectively.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
US342987A 1972-03-20 1973-03-20 Arrangement in planing machines with feeding mechanism comprising at least two rollers Expired - Lifetime US3870090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE03565/72A SE357153B (xx) 1972-03-20 1972-03-20

Publications (1)

Publication Number Publication Date
US3870090A true US3870090A (en) 1975-03-11

Family

ID=20262388

Family Applications (1)

Application Number Title Priority Date Filing Date
US342987A Expired - Lifetime US3870090A (en) 1972-03-20 1973-03-20 Arrangement in planing machines with feeding mechanism comprising at least two rollers

Country Status (6)

Country Link
US (1) US3870090A (xx)
DE (1) DE2313054A1 (xx)
FR (1) FR2176929B3 (xx)
IT (1) IT983550B (xx)
NL (1) NL7303752A (xx)
SE (1) SE357153B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009741A (en) * 1976-03-23 1977-03-01 E.Z. Mfg. Co. Woodworking machine
AT404689B (de) * 1997-02-25 1999-01-25 Profi Heimwerkermaschinen Ges Vorrichtung zur spanabhebenden bearbeitung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7802165U1 (de) * 1978-01-25 1978-05-03 C. Rob. Hammerstein Gmbh, 5650 Solingen Rastvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US717593A (en) * 1898-01-03 1903-01-06 Charles J L Meyer Sectional feed and presser roll.
US1108569A (en) * 1911-11-16 1914-08-25 United Printing Machinery Company Paper-feeding machine.
US1295875A (en) * 1918-08-26 1919-03-04 Robert D Eaglesfield Feeding mechanism for molding-machines.
US2564904A (en) * 1948-04-16 1951-08-21 Cascades Plywood Corp Work hold-down roll mechanism for work feed apparatus
US2687153A (en) * 1951-06-25 1954-08-24 George A Merriam Power feed for wood planers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US717593A (en) * 1898-01-03 1903-01-06 Charles J L Meyer Sectional feed and presser roll.
US1108569A (en) * 1911-11-16 1914-08-25 United Printing Machinery Company Paper-feeding machine.
US1295875A (en) * 1918-08-26 1919-03-04 Robert D Eaglesfield Feeding mechanism for molding-machines.
US2564904A (en) * 1948-04-16 1951-08-21 Cascades Plywood Corp Work hold-down roll mechanism for work feed apparatus
US2687153A (en) * 1951-06-25 1954-08-24 George A Merriam Power feed for wood planers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009741A (en) * 1976-03-23 1977-03-01 E.Z. Mfg. Co. Woodworking machine
AT404689B (de) * 1997-02-25 1999-01-25 Profi Heimwerkermaschinen Ges Vorrichtung zur spanabhebenden bearbeitung

Also Published As

Publication number Publication date
NL7303752A (xx) 1973-09-24
SE357153B (xx) 1973-06-18
IT983550B (it) 1974-11-11
FR2176929B3 (xx) 1976-03-19
DE2313054A1 (de) 1973-10-04
FR2176929A1 (xx) 1973-11-02

Similar Documents

Publication Publication Date Title
US3870090A (en) Arrangement in planing machines with feeding mechanism comprising at least two rollers
US3166874A (en) Thickness grinding machine
US3985488A (en) Material guide jaw for two co-operating rolls of a rolling mill or calender
JP3405985B2 (ja) 予備圧縮装置を備えた圧延・ロール鋳造装置のロール間隙調節装置
JP3626564B2 (ja) ラインサーマルプリンタ
US3580794A (en) Stamping press with linearly applied force
US2726083A (en) Roll feed mechanism
US2132924A (en) Cylindrical grinding machine
US4073173A (en) Roller guides
US3156288A (en) Roller leveller straightening machines for metal plates, sheet or strip
US3118239A (en) suits
SU843714A3 (ru) Устройство дл подачи пиломатериалов вСТАНОК дл ОбжАТи KPOMOK
US2804015A (en) Printing gap adjusting device for printing machines
US2364985A (en) Cutting machine
US2982206A (en) Impression cylinder pressure setting mechanism
US3058640A (en) Feeding attachment for woodworking machines
US2664124A (en) Microconrol for top out-feed planer roll
US665007A (en) Rotary-cutter machine.
US2239705A (en) Planer pressure shoe adjustment
GB2029263A (en) Improvements in or relating to rollermills
GB1049946A (en) Improvements in cutting machines for cutting fabric or the like into bands
DE877500C (de) Messgeraet mit Zweipunkt-Auflage, insbesondere an Schleifmaschinen oder anderen Werkzeugmaschinen
US2799338A (en) Paper cutter back gauge mounting
US1450695A (en) Milling-machine adjustment and quick release
US3734371A (en) Device for regulating the tension of a moving web