DE721262C - Device for lifting and pressing the saw blade in hacksaw machines by means of a piston that is acted upon on both sides - Google Patents

Device for lifting and pressing the saw blade in hacksaw machines by means of a piston that is acted upon on both sides

Info

Publication number
DE721262C
DE721262C DEC52100D DEC0052100D DE721262C DE 721262 C DE721262 C DE 721262C DE C52100 D DEC52100 D DE C52100D DE C0052100 D DEC0052100 D DE C0052100D DE 721262 C DE721262 C DE 721262C
Authority
DE
Germany
Prior art keywords
piston
sides
lifting
pressing
saw blade
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
DEC52100D
Other languages
German (de)
Inventor
Julius Fahdt
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.)
COLUMBO METALLSAEGENFABRIK OEL
Original Assignee
COLUMBO METALLSAEGENFABRIK OEL
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 COLUMBO METALLSAEGENFABRIK OEL filed Critical COLUMBO METALLSAEGENFABRIK OEL
Priority to DEC52100D priority Critical patent/DE721262C/en
Application granted granted Critical
Publication of DE721262C publication Critical patent/DE721262C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/16—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
    • B23D51/20—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows with controlled feed of the tool, or with special arrangements for relieving or lifting the tool on the return stroke

Landscapes

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

Description

Vorrichtung zum Abheben und Andrücken des Sägeblattes bei Bügelsägemaschinen mittels eines zweiseitig beaufschlagten Kolbens bindung stehende Kolben 8 beim Niedergang des Ölpumpenkolbens 3 gehoben wird, entsteht in dem Raum 15 ein Überdruck, und das einstellbare Drosselventil i9 kann sich öffnen. Das unter Überdruck stehende öl wird damit hinausgedrückt. Der Gegendruck des einstellbaren Drosselventils i9 ist durch Verstellen der Regelvorrichtung 2 1 einstellbar, so daß die Belastung des Sägebügels beliebig geändert werden kann. Am Manometer 23 wird der Arbeitsdruck abgelesen. Das Steuerglied 24 gibt gewöhnlich den Weg zwischen der Belastungsseite 15 und dem Manometer 23 frei. Durch Verstellung des Steuergliedes kann aber dieser Verbindungsweg zeitweise unterbrochen werden und außerdem dadurch entlastet werden, daß entweder ein Weg ins Freie geöffnet wird oder die Verbindung zwischen Manometer und Belastungsseite 15 wiederhergestellt wird.Device for lifting and pressing the saw blade on hacksaw machines by means of a piston acted on from both sides When the piston 8 is tied when the oil pump piston 3 descends, an overpressure is created in the space 15 and the adjustable throttle valve i9 can open. The oil, which is under overpressure, is thus pushed out. The back pressure of the adjustable throttle valve i9 can be adjusted by adjusting the control device 2 1, so that the load on the saw bow can be changed as desired. The working pressure is read on the manometer 23. The control member 24 is usually the path between the load side 1 5 and the pressure gauge 23 free. By adjusting the control member, however, this connection path can be temporarily interrupted and also relieved in that either a path into the open air is opened or the connection between the pressure gauge and the load side 15 is restored.

Damit die überschüssige Flüssigkeitsmenge weggeführt wird, ist im Kolben 3 in.bekannter Weise ein Umlaufventil vorhanden. Außerdem arbeitet der Kolben 3 mit einer entsprechenden Steuerkante in seinem Arbeitszylinder 12 zusammen. Diese Einrichtungen sind an sich bekannt.So that the excess amount of liquid is carried away, is im Piston 3 has a circulation valve in a known manner. In addition, the piston works 3 together with a corresponding control edge in its working cylinder 12. These Facilities are known per se.

Claims (1)

PATENTANSPRUCH: Vorrichtung zum Abheben und Andrükken des Sägeblattes bei Bügelsägemaschinen mittels eines zweiseitig beaufschlagten Kolbens (Bügelkolben), dessen Kolbenseiten mit den Seiten einer zweiseitig wirkenden Kolbenpumpe in Verbindung stehen, bei der in der Zuführleitung zur Andruckseite, deren einstellbarer Druck an einem mit ihm in Verbindung stehenden Manometer ablesbar ist, ein Rückschlagventil angeordnet ist, dadurch gekennzeichnet, daß in der Abflußleitung (22) der Andrückseite ,ein auf einen beliebigen Druck einstellbares Rückschlagventil (19-21) vorgesehen ist.PATENT CLAIM: Device for lifting and pressing the saw blade with hacksaw machines by means of a piston pressurized on both sides (hanger piston), whose piston sides are in connection with the sides of a double-acting piston pump are, in the case of the adjustable pressure in the feed line to the pressure side can be read on a pressure gauge connected to it, a check valve is arranged, characterized in that in the discharge line (22) of the pressure side , a check valve (19-21) that can be adjusted to any pressure is provided is.
DEC52100D 1936-10-30 1936-10-30 Device for lifting and pressing the saw blade in hacksaw machines by means of a piston that is acted upon on both sides Expired DE721262C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC52100D DE721262C (en) 1936-10-30 1936-10-30 Device for lifting and pressing the saw blade in hacksaw machines by means of a piston that is acted upon on both sides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC52100D DE721262C (en) 1936-10-30 1936-10-30 Device for lifting and pressing the saw blade in hacksaw machines by means of a piston that is acted upon on both sides

Publications (1)

Publication Number Publication Date
DE721262C true DE721262C (en) 1942-06-04

Family

ID=7027535

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC52100D Expired DE721262C (en) 1936-10-30 1936-10-30 Device for lifting and pressing the saw blade in hacksaw machines by means of a piston that is acted upon on both sides

Country Status (1)

Country Link
DE (1) DE721262C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267949B (en) * 1961-06-24 1968-05-09 Volkswagenwerk Ag Filing device for smoothing even workpiece surfaces
FR2481973A1 (en) * 1980-05-09 1981-11-13 Keuro Maschinenbau Gmbh DEVICE FOR MECHANICAL SAW WITH BOWT, FOR ENSURING THE BLADE IN ITS DEEP APPROACH, AND PROVIDING THE CUTTING PRESSURE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267949B (en) * 1961-06-24 1968-05-09 Volkswagenwerk Ag Filing device for smoothing even workpiece surfaces
FR2481973A1 (en) * 1980-05-09 1981-11-13 Keuro Maschinenbau Gmbh DEVICE FOR MECHANICAL SAW WITH BOWT, FOR ENSURING THE BLADE IN ITS DEEP APPROACH, AND PROVIDING THE CUTTING PRESSURE

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