EP0189095B1 - Vorrichtung zum Vorritzen von Werkstücken - Google Patents

Vorrichtung zum Vorritzen von Werkstücken Download PDF

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Publication number
EP0189095B1
EP0189095B1 EP86100423A EP86100423A EP0189095B1 EP 0189095 B1 EP0189095 B1 EP 0189095B1 EP 86100423 A EP86100423 A EP 86100423A EP 86100423 A EP86100423 A EP 86100423A EP 0189095 B1 EP0189095 B1 EP 0189095B1
Authority
EP
European Patent Office
Prior art keywords
scoring
workpiece
blade
head
blades
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
Application number
EP86100423A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0189095A1 (de
Inventor
Alfred Dettelbach
Werner Binder
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.)
Reich Spezialmaschinen GmbH
Original Assignee
Reich Spezialmaschinen GmbH
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 Reich Spezialmaschinen GmbH filed Critical Reich Spezialmaschinen GmbH
Priority to AT86100423T priority Critical patent/ATE38176T1/de
Publication of EP0189095A1 publication Critical patent/EP0189095A1/de
Application granted granted Critical
Publication of EP0189095B1 publication Critical patent/EP0189095B1/de
Expired 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
    • 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
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/10—Measures preventing splintering of sawn portions of wood
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0207—Other than completely through work thickness or through work presented
    • Y10T83/0215—Including use of rotary scoring blade
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0333—Scoring
    • Y10T83/0348—Active means to control depth of score
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0333—Scoring
    • Y10T83/0363—Plural independent scoring blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8776—Constantly urged tool or tool support [e.g., spring biased]

Definitions

  • the invention relates to a device for scoring workpieces, in particular coated plates, according to the preamble of patent claim 1.
  • the bracket which is slidably and lockably fastened to the machine frame, together with the knife carrier, each carrying a scoring knife and individually adjustable transversely to the working direction of the circular saw, ensures quick and easy replacement and adjustment of the scoring knife.
  • FIG. 1 shows a conventional circular saw 2 with a machine frame 3, which is essentially vertically displaceable in a sliding guide 1, and a driven circular saw blade 4 which is rotatably mounted therein.
  • a workpiece supported on a support 5 is cut in the form of a coated plate 6.
  • the layer arranged on the surface of the plate 6, e.g. can consist of plastic, is designated by 7 in Fig. 1. The saw cut takes place from top to bottom in FIG. 1.
  • a bracket 8 is attached to the machine frame 3, which carries a scoring head 9.
  • a scoring head 9 a track consisting of two sharp cuts is pre-scored in a manner to be described, which track prevents the workpiece surface from breaking out laterally in the area of the saw slot produced when the subsequent saw blade 4 is cut.
  • the holder 8 has a dovetail groove 11 on its upper side, in which a dovetail profile 12 firmly connected to the machine frame 3 of the circular saw 2 engages.
  • the bracket 8 is mounted on the underside of the machine frame 3 substantially horizontally. This horizontal displaceability is used to adjust to a certain workpiece thickness, for example the thickness of the plate 6.
  • the holder 8-cf. Fig. 1 - carries a scale 13, which cooperates with a pointer 14 attached to the machine frame 3, so that the set workpiece thickness can be read.
  • an eccentric shaft 15 is mounted, which cooperates with pressure pieces 16, via which the holder 8 can be clamped to the dovetail profile 12 and thus to the machine frame 3 in the desired position.
  • the eccentric shaft 15 can be rotated by means of a handle 10.
  • the scoring head 9 is slidably connected to the holder.
  • a guide rod 17 protruding from the scoring head 9 slidably engages in a corresponding bore in the holder 8.
  • Two helical compression springs 19, 21 are in corresponding longitudinal bores in the holder 8 arranged and with their protruding ends give the scoring head 9 a prestress with respect to the holder 8, so that the scoring head is pressed against the workpiece (plate 6) with a predetermined force.
  • the scoring head 9 comprises two parts, namely a base part 23, from which the rod 17 and the bolt 18 protrude, and a knife carrier part 24, which is connected to the base part 23 in a laterally adjustable manner by a dovetail guide.
  • the structure of the scoring head 9 is shown in FIGS. 5 and 6.
  • the knife carrier part 24 held on the base part 23 by the dovetail guide 25 consists - see FIG. 6 - from two knife carriers 26, 27, each having a dovetail-shaped extension 28 or 29, with which they are slidably held in a corresponding dovetail groove 31 on the base part 23.
  • Each knife carrier 26, 27 can be fixed on the base part 23 with an adjusting screw 33 or 32 assigned to it. In this way, the knife carriers 26, 27 can be fixed at a certain mutual distance on the base part 23.
  • Each knife carrier 26, 27 carries a scoring knife 34 and 35 in the form of known, square indexable inserts.
  • the scoring blades 34, 35 are, as shown, bevelled on one side and inserted into the scoring head 9 in such a way that their inclined surfaces face each other. This arrangement is important because this is the only way to prevent the workpiece surface from being thrown and broken off at the non-beveled edge of the scoring knives 34, 35. When the inclined surfaces penetrate the workpiece surface, they push the workpiece material inwards. The distortions that occur here are not disturbing, since the saw cut is subsequently carried out in this area.
  • the scoring knives 34, 35 designed as indexable inserts can be connected to the knife carriers 26, 27 in four different positions. These are commercially available, very inexpensive parts that can easily be thrown away after they have been blunted.
  • connection of the scoring knives 34, 35 to the knife carriers 26, 27 are provided by clamping pieces 36, 37 with obliquely projecting clamping edges which engage in corresponding recesses in the scoring knives 34, 35.
  • clamping screws 38, 39 which penetrate corresponding slots in the knife carrier 26 or 27, the clamping pieces 36, 37 and thus the scoring knives 34, 35 can be pulled against the respective knife carriers and clamped there.
  • Axial stubs 41 and 42 protrude from the knife carriers 26, 27, on which feeler rollers 43 and 44 are supported by means of ball bearings.
  • the rollers 43, 44 have an elastic covering 45 on their peripheral surfaces. Recesses 46, 47 in the rollers 43 and 44 enable the screws 38 and 39 to be loosened and tightened.
  • an adjusting screw 48 is provided which penetrates the dovetail profile 25 of the two knife carriers.
  • the adjusting screw 48 has two threaded sections 49 and 51 with different pitches (and diameters) which engage in corresponding threaded bores of the two knife carriers 26 and 27.
  • the threaded section 51 there is a recess 52 for inserting a tool, with the aid of which the adjusting screw 48 can be turned.
  • both clamping screws 32, 33 are tightened so that the two knife carriers 26, 27 are fixed to the scoring head while maintaining a certain distance between the scoring blades 34, 35.
  • the clamping screw 33 assigned to it is loosened.
  • the adjusting screw 48 By turning the adjusting screw 48 in a certain direction, the two threaded sections 49, 51 having the same thread turn in the same direction. Since these threaded sections have different pitches, the knife carrier 26 is displaced relative to the knife carrier 27 held in place by the clamping screw 32.
  • the holder 8 When working with the device, the holder 8 is first set to the thickness of the workpiece to be cut using the scale 13 and the pointer 14. Then the saw 2 is brought into the working position, the saw blade 4 penetrating the workpiece and the feeler rollers 43, 44 rest with their elastic coating 45 on the workpiece surface. The springs 19, 21 between the holder 8 and the scoring head 9 press the scoring knives 34, 35 beyond the circumferential surfaces of the feeler rollers with the desired depth and force into the surface of the workpiece. When the circular saw 2 and the scoring device connected to it are moved, the tips of the scoring knives 34, 35 penetrating into the workpiece surface cut two scoring marks into the surface. The subsequent saw cut through the saw blade 4 takes place between these scratch marks, which ver break out of the workpiece surface on the outer sides of the tracks prevent so that a smooth, even saw cut is guaranteed.
  • the scribing device described is suitable not only for coated panels, as shown in FIG. 1, but also for other workpieces, for example made of plastic, the surface of which could be damaged by cutouts or the like in the area of the saw cut.
  • the feeler rollers 43, 44 which, moreover, do not necessarily have to carry an elastic circumferential covering 45, continue to serve to hold down the workpiece surface on the outside of the scratch track consisting of two cuts and to prevent warping, breakouts or the like. For this purpose, it is desirable to bring the peripheral surfaces of the feeler rollers 43, 44 as close as possible to the penetration point of the scoring knife 34, 35.
  • the arrangement according to FIG. 7 enables the peripheral surfaces of the feeler rollers to be brought directly to the scoring knife in the region of their penetration point into the workpiece.
  • the two sensing rollers 53, 54 are frustoconical there and their axes of rotation 55, 56 run obliquely to the scoring knives 34, 35 6, so there is sufficient space in the upper part of the arrangement according to FIG. 7 to insert the knife carriers (not shown) between the feeler rollers 55, 56 into the base part 53 of the scoring device .
  • the peripheral surfaces of the feeler rollers 55, 56 can be brought as close as desired to the outside of the scoring knife 34, 35, so that they press directly on the workpiece surface next to the scoring track generated.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Sawing (AREA)
  • Soil Working Implements (AREA)
  • Harvester Elements (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP86100423A 1985-01-19 1986-01-14 Vorrichtung zum Vorritzen von Werkstücken Expired EP0189095B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100423T ATE38176T1 (de) 1985-01-19 1986-01-14 Vorrichtung zum vorritzen von werkstuecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853501657 DE3501657A1 (de) 1985-01-19 1985-01-19 Vorrichtung zum vorritzen von werkstuecken
DE3501657 1985-01-19

Publications (2)

Publication Number Publication Date
EP0189095A1 EP0189095A1 (de) 1986-07-30
EP0189095B1 true EP0189095B1 (de) 1988-10-26

Family

ID=6260205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100423A Expired EP0189095B1 (de) 1985-01-19 1986-01-14 Vorrichtung zum Vorritzen von Werkstücken

Country Status (6)

Country Link
US (1) US4711147A (enrdf_load_stackoverflow)
EP (1) EP0189095B1 (enrdf_load_stackoverflow)
JP (1) JPS61169201A (enrdf_load_stackoverflow)
AT (1) ATE38176T1 (enrdf_load_stackoverflow)
CA (1) CA1259559A (enrdf_load_stackoverflow)
DE (1) DE3501657A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9420807U1 (de) * 1994-12-23 1996-04-25 Wilhelm Altendorf GmbH & Co KG, 32429 Minden Vorrichtung zum Feineinstellen
DE10214454B4 (de) * 2002-03-30 2013-04-18 Robert Bosch Gmbh Handstichsägemaschine

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1223793A (en) * 1986-06-23 1987-07-07 Jacques Ducharme Scoring saw
DE3800935A1 (de) * 1988-01-15 1989-07-27 Reich Maschf Gmbh Karl Ritzvorrichtung
NL9000191A (nl) * 1990-01-25 1991-08-16 Elcon Maschf Bv Voorsnij-inrichting voor een zaaginrichting.
US5159870A (en) * 1991-08-15 1992-11-03 Fiala Paul E Portable electric cutting and scoring saw
AT400826B (de) * 1994-07-14 1996-03-25 Schelling & Co Verfahren zum einstellen eines vorritzers gegenüber einem trennsägeblatt und vorrichtung zur durchführung des verfahrens
CH691970A5 (de) * 1996-03-04 2001-12-14 Ciba Sc Holding Ag Alkylphenylbisacylphosphinoxide und Photoinitiatormischungen.
US5979525A (en) * 1998-08-18 1999-11-09 Durney; Max W. Method and apparatus for scoring a workpiece in advance of sawing
AT407504B (de) * 1999-02-10 2001-04-25 Ant Panhans Werkzeug Masch Bearbeitungseinrichtung für plattenförmige werkstücke
AT406651B (de) * 1999-02-11 2000-07-25 Schelling Anlagenbau Gmbh Einrichtung an unterflursägemaschinen
US8468921B2 (en) * 2004-05-26 2013-06-25 Bhs Corrugated Maschinen-Und Anlagenbau Gmbh Brush cylinder
DE102010041375B4 (de) * 2010-09-24 2012-12-27 Holzma Plattenaufteiltechnik Gmbh Plattenaufteilanlage zum Aufteilen von plattenförmigen Werkstücken
DE102011005017A1 (de) * 2011-03-03 2012-09-06 Robert Bosch Gmbh Tragbare Werkzeugmaschine
DE102013006262A1 (de) * 2013-04-11 2014-10-16 Ima Klessmann Gmbh Holzbearbeitungssysteme Vorrichtung und Verfahren zur Bearbeitung plattenförmiger Werkstücke
CN109049145B (zh) * 2018-08-08 2023-06-09 福建兴恒机械科技有限公司 一种无损坏高品质的板材加工生产线
DE102019134412B4 (de) * 2019-12-13 2023-12-14 Festool Gmbh Mobile Hand-Sägemaschine mit Vorritzaggregat und Werkzeugwechsel
DE102019134417A1 (de) * 2019-12-13 2021-06-17 Festool Gmbh Mobile Hand-Sägemaschine mit Vorritzaggregat und Handgriff
DE102019134416A1 (de) * 2019-12-13 2021-06-17 Festool Gmbh Mobile Hand-Sägemaschine mit Vorritzwerkzeug an Längsseite
DE102019134415B4 (de) * 2019-12-13 2023-12-14 Festool Gmbh Mobile Hand-Sägemaschine mit Vorritzaggregat und Staubabfuhr
DE102019134413A1 (de) * 2019-12-13 2021-06-17 Festool Gmbh Vorritzwerkzeug für eine Sägemaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058150A (en) * 1976-03-09 1977-11-15 Pennington Charles A Wood cutting apparatus

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US3924496A (en) * 1972-12-13 1975-12-09 Grace W R & Co Method for producing grooves in formed thermoplastic insulation boards
DE7439738U (de) * 1974-11-29 1975-04-17 Meyer F & Schwabedissen Säge, insbesondere Plattenaufteilsäge mit Vorritz- und Hauptsäge
IT1052803B (it) * 1974-12-16 1981-07-20 Hoechst Ag Nastro precorritore per supporti di informazioni a nastro
DE2622329A1 (de) * 1976-05-19 1977-12-08 Stehle Werkzeug & Maschf Ritzeinrichtung fuer die oberflaechen von platten, insbesondere von mit relativ harten flaechenschichten versehenen platten
US4098155A (en) * 1976-09-17 1978-07-04 The Fletcher-Terry Company Self-compensating scoring head
DE2740673A1 (de) * 1976-09-20 1978-03-23 Giben Impianti Spa Kreissaegemaschine fuer platten, plattenpakete o.dgl.
IT1081442B (it) * 1977-06-07 1985-05-21 Putsch Meniconi Srl Testa operatrice per macchina sezionatrice di pannelli specialmente in legno a superficie vista in laminato plastico
US4176572A (en) * 1978-01-23 1979-12-04 Pennington Charles A Device for scoring wood panels prior to sawing
US4245390A (en) * 1979-03-30 1981-01-20 Bond David L Scoring attachment for power saws
US4228711A (en) * 1979-05-17 1980-10-21 The Fletcher-Terry Company Self-castering glass cutter and compensating bi-directional head
BR7903150A (pt) * 1979-05-21 1980-11-25 Rockwell Brasil Ind Com Serra de mesa
IT1145521B (it) * 1981-10-20 1986-11-05 Giben Impianti Spa Dispositivo incisore, particolarmente adatto per le macchine e per gli impianti adibiti alla sezionatura di pannelli di legno e/od in altro materiale

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058150A (en) * 1976-03-09 1977-11-15 Pennington Charles A Wood cutting apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9420807U1 (de) * 1994-12-23 1996-04-25 Wilhelm Altendorf GmbH & Co KG, 32429 Minden Vorrichtung zum Feineinstellen
DE10214454B4 (de) * 2002-03-30 2013-04-18 Robert Bosch Gmbh Handstichsägemaschine

Also Published As

Publication number Publication date
JPS61169201A (ja) 1986-07-30
EP0189095A1 (de) 1986-07-30
ATE38176T1 (de) 1988-11-15
US4711147A (en) 1987-12-08
CA1259559A (en) 1989-09-19
DE3501657A1 (de) 1986-07-24
DE3501657C2 (enrdf_load_stackoverflow) 1987-07-23

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