DE1528004A1 - Circular saw machine with hand-operated saw blade feed - Google Patents

Circular saw machine with hand-operated saw blade feed

Info

Publication number
DE1528004A1
DE1528004A1 DE19651528004 DE1528004A DE1528004A1 DE 1528004 A1 DE1528004 A1 DE 1528004A1 DE 19651528004 DE19651528004 DE 19651528004 DE 1528004 A DE1528004 A DE 1528004A DE 1528004 A1 DE1528004 A1 DE 1528004A1
Authority
DE
Germany
Prior art keywords
saw blade
saw
feed
hand
operated
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.)
Pending
Application number
DE19651528004
Other languages
German (de)
Inventor
Anton Scheck
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.)
RYKART AG GEB
Original Assignee
RYKART AG GEB
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 RYKART AG GEB filed Critical RYKART AG GEB
Publication of DE1528004A1 publication Critical patent/DE1528004A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D47/00Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
    • B23D47/08Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for bringing the circular saw blade to the workpiece or removing same therefrom
    • B23D47/10Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for bringing the circular saw blade to the workpiece or removing same therefrom actuated by fluid or gas pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/02Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock mounted on a carriage
    • B23D45/021Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock mounted on a carriage with the saw blade mounted on a carriage
    • B23D45/022Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock mounted on a carriage with the saw blade mounted on a carriage the carriage performing a vertical movement only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/04Arrangements preventing overload of tools, e.g. restricting load

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Description

Kreissägemaschine mit handbetätigtem Sägeblattvorschub. Um beim Betrieb von Kreissägemaschinen einen sauberen Schnitt zu erhalten' ist darauf Bedacht zu nehmen, dass der Sägeblattvorschub möglichst ruhig und gleichmässig erfolgt. Bei Kreissägemaschinen mit mechanisch, pneumatisch oder hydraulisch bewirktem Sägeblattvorschub wird dieses Erfordernis mindestens einigermassen erfüllt, dagegen hängt bei Handhebel-Kreissägemaschinen die Bewerkstelligung eines gleichmässigen Vorschubes gänzlich von der Geschicklichkeit der Bedienungsperson ab.Besbnders beim Trennen von Werkstücken mit unregelmässiger Querschnittsform kommt es in der Praxis sehr häufig vor, dass das Sägeblatt beim Uebergang zu einer abgesetzten Querschnittform des Werkstücks in diesem einhakt, was zur folge haben kann, dass das Sägeblatt bricht oder die Maschine blockiert wird. Die Erfindung betrifft eine Kreissägemaschine mit handbetätigtem Sägeblattvorsciw.b, bei der die obgenannten Nachteile und auch das Rattern bisher gebräuehliäbher Maschinen dieser ,Art dadurch behoben wird, dass der Sägekopf kraftschlüssig mit dem verschiebbaren Teil eines bfdraulischen Bremsgerätes verbunden ist, das in seinem durch den Sägeblattvorschub betätigten Flüssigkeitsumlauf eine verstellbare Drossel aufweist, durch die der Vorschub in regulierbarer Weise gebremst wird.Circular saw machine with hand-operated saw blade feed. In order to get a clean cut when operating circular sawing machines, care must be taken that the saw blade is fed as smoothly and evenly as possible. In circular sawing machines with a mechanically, pneumatically or hydraulically operated saw blade feed, this requirement is met at least to a certain extent, whereas in hand lever circular sawing machines the ability to achieve an even feed depends entirely on the skill of the operator often the case that the blade at the transition to a remote cross-sectional shape of the workpiece in this hooking, which may have the consequence that the blade breaks or the machine is blocked. The invention relates to a circular saw machine with a hand-operated saw blade attachment, in which the above-mentioned disadvantages and also the rattling of previously used machines of this type are eliminated by the fact that the saw head is positively connected to the movable part of a hydraulic braking device that is fed by the saw blade feed actuated fluid circulation has an adjustable throttle by which the feed is braked in an adjustable manner.

Das an sich bekannte, meist mit 0e1 versehene Bremsgerät ist mit seinem Bremszylinder am Maschinengestell befestigt, während der mit dem Sägekopf kraftschlüssig verbundene Bremskolben durch " den handbetätigten Sägeblattvorschub gegen den Oelwiderstand verschoben wird, der von der manuellen Vorschubkraft auf das Sägeblatt und dem eingestellten Oeldurchlass der Drossel abhängig ist. Ergibt sich beim Durchsägen eines Werkstücks an einer Stelle plötzlich verkleinerten Querschnitts oder veränderter Querschnittsform ein Ueberschuss an Vorschubkraft, so wird dieser durch den 0e1-widerstand im Bremszylinder aufgefangen, wodurch das Einhaken des Sägeblattes am Werkstück und infolge der möglichen Begrenzung der maximalen Vorschubsgeschwindigkeit durch Einstellung des Drosseldurchlasses auch das Rattern des Sägeblattes verhindert werden.The braking device, which is known per se and is usually provided with 0e1, is equipped with his Brake cylinder attached to the machine frame, while the one with the saw head is frictional connected brake pistons by "the hand-operated saw blade feed against the oil resistance shifted by the manual feed force on the saw blade and the set Oil passage of the throttle is dependent. Occurs when sawing through a workpiece suddenly reduced cross-section or changed cross-sectional shape at one point if there is an excess of feed force, this is caused by the 0e1 resistance in the brake cylinder caught, whereby the hooking of the saw blade on the workpiece and as a result of the possible Limitation of the maximum feed speed by adjusting the throttle passage the rattling of the saw blade can also be prevented.

Ein Ausführungsbeispiel der erfindungsgemässen rreissägemaschine ist auf der. beiliegenden Zeichnung teils im Aufriss und teils im Vertikalschnitt dargestellt.An exemplary embodiment of the circular saw machine according to the invention is on the. The accompanying drawing is shown partly in elevation and partly in vertical section.

Es bezeichnet 1 den Maschinenständer, an welchem in einer vertikalen Führung 2 der das Sägeblatt 4 tragende Sägekopf 3 verschiebbar angeordnet ist. Das Kreissägeblatt 4 steht an einem winkelförmigen Werkstück 5, z.8. Winkeleisen, in Eingriff, welches durch eine nichtgezeigte Spannvorrichtung festgehalten wird. Zum manuellen Bewirken des vertikalen Sägeblattvorschubes ist auf einer horizontalen Dreiachse 7 ein Handhebel 6 mit einem Zahnsegment S angeordnet, das in eine am Sägekopf 3 befestigte Zahnstange 9 eingreift. Eine überdies am Sägekopf 3 angebrachte Mitnehmergabel 10 umgreift die Kolbenstange 11 eines hydraulischen Bremsgerätes, dessen am Maschinenständer l befestigter vertikaler Zylinder 12 den mit der Kolbenstange 11 verbundenen Kolben 21 enthält,der den Zylinderhohlraum in zwei Kammern 22 und 23 trennt, die über eine Umlaufleitung 24 miteinander verbunden sind.It denotes 1 the machine stand, on which the saw head 3 carrying the saw blade 4 is arranged displaceably in a vertical guide 2. The circular saw blade 4 is on an angular workpiece 5, for example 8. Angle iron, in engagement, which is held by a clamping device, not shown. To manually effect the vertical saw blade feed, a hand lever 6 with a toothed segment S is arranged on a horizontal three-axis 7, which engages in a toothed rack 9 attached to the saw head 3. A driving fork 10, which is also attached to the saw head 3, engages around the piston rod 11 of a hydraulic braking device, the vertical cylinder 12 of which is attached to the machine frame 1 and contains the piston 21 connected to the piston rod 11, which separates the cylinder cavity into two chambers 22 and 23, which are connected via a circulating line 24 are connected to each other.

In diese Umlaufleitung 24 ist eine Drossel 13 eingebaut und mündet ein angeschlossener Ausgleichszylinder 14. Der Drosseldurchlass ist in bekannter Weise z.B. mittels einer Schraube einstellbar und bestimmt die Bremswirkung auf den Sägeblattvorsohub. An der Kolbenstange 11 ist ein Stellring 15 befestigt, der zur Rückführung des Kolbens 21 in die obere Endstellung dient. Eine lösbar an der Kolbenstange 11 befestigte Klemmbride 16 ist als verstellbare Abstützung für die Mitnehmergabel 10 vorgesehen, welche beim Arbeitsvorschub des Sägekopfes 3 kraftschlüssig auf der Klemmbride 16 aufliegt und den Kolben 21 gegen den hydraulischen Bremswiderstand abwärts verschiebt. Zum Einstellen der Klemmbride 16 wird der Kolben 21 gäntlich angehoben und der Sägekopf 3 soweit verschoben', dass sich das Sägeblatt 4 mit den untersten Zähnen etwa 2-5 mm über dem Werkstück 5 befindet. Dann wird die gelöste Klemmbride 16, von unten an die Mitnehmergabel 10 geschoben, dass die letztere ohne Spiel aufliegt, und wieder festgeklemmt. Zwischen dem Stellring 15 und der Klemmbride 16 verbleibt somit ein Leerlaufweg, auf welchem ein rasches Anstellen des Sägeblattes auf dem Werkstück unabhängig vom Bremsgerät möglich ist.A throttle 13 is built into this circulation line 24 and a connected compensating cylinder 14 opens. The throttle passage can be adjusted in a known manner, for example by means of a screw, and determines the braking effect on the saw blade advance. An adjusting ring 15, which is used to return the piston 21 to the upper end position, is attached to the piston rod 11. A clamp 16 releasably attached to the piston rod 11 is provided as an adjustable support for the driver fork 10, which rests positively on the clamp 16 when the saw head 3 advances and moves the piston 21 downwards against the hydraulic braking resistor. To adjust the clamp 16, the piston 21 is raised completely and the saw head 3 is moved so far that the saw blade 4 with the lowest teeth is about 2-5 mm above the workpiece 5. Then the released clamp 16 is pushed from below onto the driver fork 10 so that the latter rests without play, and is clamped again. An idle path thus remains between the adjusting ring 15 and the clamp 16, on which a quick adjustment of the saw blade on the workpiece is possible independently of the braking device.

Claims (2)

P a t e n t a n s p r ü c h e
dadurch gekennzeichnet, dass der Sägekopf (3) in der Vorschubrichtung des Sägeblattes (4) kraftschlüssig mit dem verschiebbaren Teil (11) eines hydraulischen Bremsgerätes (11-14, 21-24) verbunden ist, das in seinem durch den Sägeblattvorschub betätigten Flüssigkeitsumlauf eine verstellbare Drossel (13) aufweist, durch die der Vorschub in regulierbarer Weise gebremst wird.
Patent claims
characterized in that the saw head (3) is non-positively connected in the feed direction of the saw blade (4) to the displaceable part (11) of a hydraulic braking device (11-14, 21-24) which, in its fluid circulation actuated by the saw blade feed, has an adjustable Has throttle (13), through which the feed is braked in an adjustable manner.
2. Kreissägemaschine nach Anspruch 1, dadurch gekennzeichnet, dass am verschiebbaren Teil (11) des Bremsgerätes (11-14, 21-24) ein Mitnehmerorgan (16) für die kraftschlüssige Einwirkung des Sägekopfes (3) auf das Bremsgerät (11-14, 21-24) in der Verschieberichtung des Teils (11) verstellbar angebracht ist.2. Circular saw machine according to claim 1, characterized in that on the displaceable part (11) of the braking device (11-14, 21-24) a driver element ( 16) for the frictional action of the saw head (3) on the braking device (11-14, 21-24) is mounted adjustable in the direction of displacement of the part (11).
DE19651528004 1964-08-14 1965-08-12 Circular saw machine with hand-operated saw blade feed Pending DE1528004A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1068564A CH428385A (en) 1964-08-14 1964-08-14 Device to prevent rattling and hooking on circular sawing machines

Publications (1)

Publication Number Publication Date
DE1528004A1 true DE1528004A1 (en) 1970-01-15

Family

ID=4365748

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19651528004 Pending DE1528004A1 (en) 1964-08-14 1965-08-12 Circular saw machine with hand-operated saw blade feed
DE19656603478 Expired DE6603478U (en) 1964-08-14 1965-08-12 CIRCULAR SAW MACHINE WITH SAW BLADE FEED

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19656603478 Expired DE6603478U (en) 1964-08-14 1965-08-12 CIRCULAR SAW MACHINE WITH SAW BLADE FEED

Country Status (2)

Country Link
CH (1) CH428385A (en)
DE (2) DE1528004A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109176653A (en) * 2018-08-29 2019-01-11 嘉兴学院 A kind of high-efficient automatic cutting machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928956C2 (en) * 1979-07-18 1984-09-20 Paul Dipl.-Volksw. 7590 Achern Stolzer Continuously working cutting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109176653A (en) * 2018-08-29 2019-01-11 嘉兴学院 A kind of high-efficient automatic cutting machine

Also Published As

Publication number Publication date
DE6603478U (en) 1969-10-23
CH428385A (en) 1967-01-15

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