DE2919037C2

DE2919037C2 - Bandsaw that can be driven at several speeds

Info

Publication number: DE2919037C2
Application number: DE19792919037
Authority: DE
Inventors: Wolfgang Dipl.-Ing. 7153 Weissach Nicke
Original assignee: Licentia Patent Verwaltungs GmbH
Current assignee: Licentia Patent Verwaltungs GmbH
Priority date: 1979-05-11
Filing date: 1979-05-11
Publication date: 1986-01-09
Also published as: DE2919037A1

Description

bandes legen sich die Ausleger 27,28 fest an die Laschen 29,30 an.band, the extension arms 27, 28 are firmly attached to the tabs 29.30 at.

Durch eine von der Rückseite des Maschinengehäuses her zu bedienende Spindel 31, deren Stirnseite beim Spannen des Sägebandes an einem unteren Ansatz 32 der Radaufnahme 19 zur Anlage kommt (Fig.4), läßt sich die Neigung des Sägebandes regulieren. Dies geschieht in der Regel so lange, bis das Sägeband auf Rad-Mitte läuftBy a spindle 31 to be operated from the rear of the machine housing, the end face of which at Tensioning of the saw band comes to rest against a lower extension 32 of the wheel mount 19 (FIG. 4) regulate the incline of the saw band. This usually happens until the saw blade is on Wheel center runs

Wie aus F i g. 2 hervorgeht ist das Sägeband 33 im Schneidbereich nach beiden Seiten und auf Sägedruck durch je eine gleiche Führungseinheit 34, 35 geführt. Dabei ist die eine Führungseinheit 34, unmittelbar unter dem Tisch 36 angeordnet und die andere, 35, höhenverstell- und arretierbar oberhalb des Tisches 36 angebracht. As shown in FIG. 2 shows the saw band 33 in the cutting area on both sides and at saw pressure guided by an identical guide unit 34, 35 each. One guide unit 34 is arranged directly under the table 36 and the other, 35, is height-adjustable. and lockably mounted above the table 36.

Wie aus F i g. 4 ersichtlich ist stützt sich der Halter 37 für die seitlich führenden, runden Gleitsteine 38 gegen Verdrehen an der Achse 39 des Lagers 40 ab, das den Sägedruck aufnimmtAs shown in FIG. 4, the holder 37 for the laterally leading, round sliding blocks 38 is supported against Turning on the axis 39 of the bearing 40, which absorbs the saw pressure

Alle diese Teile können leicht von vom oder von der rechten Seite her eingestellt werden. Das die oh:re Führungseinheit 35 tragende Führungsrohr 41 wird durch Einhandbedienung einer Sternschraube 42 an der Gehäuserückseite gelöst an dieser Schraube 42 auf die gewünschte Schnitthöhe eingestellt und wieder arretiert Die Schraube 42 bewegt sich dabei in einem Schlitz 43 im Maschinengehäuse 4. Das gefährliche Hochschieben mit der anderen Hand, die dabei in den Schnittbereich gelangt entfällt somit (siehe auch F ig. 2).All of these parts can easily be adjusted from the front or from the right side. That the oh: re management unit 35 supporting guide tube 41 is by one-handed operation of a star screw 42 on the rear of the housing loosened at this screw 42 adjusted to the desired cutting height and locked again The screw 42 moves in a slot 43 in the machine housing 4. The dangerous Push up with the other hand, which is in the The cutting area is therefore omitted (see also Fig. 2).

In ähnlicher einfacher Weise kann der Tisch 36 in jede gewünschte Position zwischen 0° und 45° geschwenkt und festgestellt werden. Die O°-Lage ist mittels einer justage 44 einstellbar. Die Genauigkeit beim Verschwenken ist durch zwei Führungsbolzen 45, 46 im Maschinengehäuse 4 gewährleistet Der Schlitz 47 im Tisch 36 zum Einlegen des Sägebandes 33 ist sehr genau und fest durch eine einfache Schraube 48 mit Mutter 48' verschließbar (F i g. 2).In a similarly simple manner, the table 36 can be pivoted to any desired position between 0 ° and 45 ° and be determined. The O ° position can be adjusted by means of an adjustment 44. The accuracy when pivoting is ensured by two guide pins 45, 46 in the machine housing 4 The slot 47 in the Table 36 for inserting the saw band 33 is very precise and fixed by a simple screw 48 with nut 48 ' lockable (Fig. 2).

Die quadratische Kunststoff-Tischeinlage 49 kann gegebenenfalls auch durch ein selbstgefertiges Holzteil ersetzt werden.The square plastic table insert 49 can optionally also be replaced by a self-made wooden part will.

Der Gehäusedeckel 50 ist an drei Punkten 51,52,53 befestigt und läßt sich einfach durch Drehen der zügehörigen Griffe um 90° anbringen bzv. abnehmen. Die Griffe 54 (F i g. 4) weisen federnde Teile 55 auf und rasten daher stets sicher und vibrationsfrei im Gehäusedeckei 50 ein. Sie bleiben immer am Maschinengehäuse 4 und müssen deshalb nicht mühsam ganz herausge- so dreht werden. Außerdem sind sie unverlierbar. Im Gehäusedeckel 50 ist sowohl aer Spänekanal 56 als auch der Staubsaugeranschluß 57 untergebracht (F i g. 1 und 2). Die Grundplatte der Bandsäge ist mit 58 bezeichnet.The housing cover 50 is at three points 51,52,53 attached and can be easily attached by turning the associated handles by 90 ° or. decrease. the Handles 54 (FIG. 4) have resilient parts 55 and therefore always lock securely and vibration-free in the housing cover 50 a. They always remain on the machine housing 4 and therefore do not have to be laboriously removed completely be rotated. In addition, they cannot be lost. In the housing cover 50 is both the chip duct 56 and the vacuum cleaner connector 57 housed (F i g. 1 and 2). The base plate of the band saw is labeled 58.

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Hierzu 4 Blatt ZeichnungenFor this purpose 4 sheets of drawings

Claims

1 21 2

ren step pulley and the lower band wheel,

Claim: F i g. 4 is a partial sectional side view of the band saw

As in particular from FIG. 1 shows, the stu-

With several speeds drivable window-side bearing plate of the drive motor 1 as Band saw, in which the flange bearing shield 2 is formed on the machine housing 5, which is supported by an axle Drive motor designed as a flange motor bolt 3 pivotably mounted on the machine housing 4 det is and the flange has a hole for receiving and with the help of a T-screw 5 in each an axle bolt, around which the set position can be locked Flanged motor is pivotable, and in which has a threaded extension 6 and is by means of a A step washer io nut 6 'secured to the motor shaft led out in the wall of the machine is, a circular opening 7 is attached via a belt with a case 4, defenscheibe Larger diameter in the drive ver- ren diameter is chosen so that the stump 8 of the binding stands, characterized in that the motor drive shaft mix of the steps attached to it the wall of the machine housing (4) has a disk 9, which is a two-part V-belt pulley-through opening (7) for which is formed on the motor shaft 15, through this opening and into the interior Has stepped disk (9) and only one right of the machine housing can be inserted designed as a tommy screw retaining screw (5) on the one hand ensures that the drive motor for the drive motor (1), the flange (2) 1 with the flange end shield 2 and the two-part and the stepped disk (9) existing unit in front of stepped disk 9 existing unit quickly and safely can be seen 20 can be mounted and removed again just as quickly

can be taken. In addition, this results in

se conception a space-saving construction.

The stepped disk 9 stands with the larger diameter, likewise two-part stepped disk

The invention relates to one with several 25 11 in drive connection via a V-belt 12. the Speeds drivable band saw, in which drive shaft 13 of the stepped pulley 11, as in particular Drive motor mounted on the machine housing as the one shown in FIG. 3, in the deep groove ball bearings 14, 15 Flange motor is designed and the flange is rotatably supported by a drilling. The bearing housing is from machining has to accommodate an axle bolt, for technical reasons mounted separately on the which the flange motor is pivotable, and which drive shaft 13 also has the lower band hole A step wheel 16 is arranged on the motor shaft that is led out. The band wheel 16 can be of the disk is arranged, dfc, · via a belt with a stepped pulley 11 via cast drivers 17 or Stepped pulley of larger diameter in drive assembly, an intermediate piece made of suitable material is taken along. there is a bond.

In a known, in the prior art of the Gbm 35 the tommy screw 5 is with the Ge-77 removed 11 036 specified circular saw of this type are accessible in the housing cover 50 and easy to use. The Lö flange area of the drive motor, a few retaining screws of the tommy screw 5 enable it to be pivoted provided, one of which to form a rotation of the drive motor 1 around the in a bearing eye axis into a coordinated flange hole 3 located and thus a folding of the engages The remaining retaining screws are attached to the other pulley of the V-belt 12 in elongated holes 40, to pivot the flange motor to the stepped pulleys 9 and 11 and then the enable. Tensioning the V-belt for operation with the new one

For shifting the belt from a pair of pulleys. This means that the band saws can be converted quickly the other pair of disks are initially moved from one speed to the other. to loosen all retaining screws and vice versa guaranteed after the UmIe 45.

to tighten the process again. The required for this as shown in FIGS. 2 and 4 is the upper one

The expenditure of time is considerable. In addition, the belt wheel 18 is rotatably mounted on a wheel mount 19, talking tools required. The wheel mount is in the machine housing between

The invention is based on the object of one of these two ribs 20, 21 guided and hanging forward like engine suspension, in particular, inclinable to 50 on a thread improver that can be operated from above, that the holder, assembly and handle spindle 22, which are located on the Maschibung via a spring 23 the drive motor is supported at the highest mechanical inner housing 4 This arrangement ensures Precision and stability are comparatively easier, and the display device is as independent as possible. for the tension of the saw band of the saw band

This object is achieved in that, according to the invention, longitudinal fluctuations.

the wall of the machine housing measured a diameter. The display device consists of an in

opening for the millimeter saw band width calibrated scale 24 on the motor shaft and a dial has and only one as a toggle screw ger 25, which is simply mounted and formed with the spring 23 gekopausbildten Retaining screw for which is out of the drive pelt. By actuating the with a rotary knob 26 motor, the flange and the stepped pulley existing ω provided threaded spindle 22 can be the upper Unit is provided. Adjust the height of the band wheel 18. The right band

One embodiment of the invention is in post-tensioning as a function of the spring deflection It is indicated by the pointer 25 on the display scale 24.

F i g. 1 is a partial view of an inventively designed The wheel mount 19 has brackets 27, 28, which are

shaped band saw from the side, partly in section, 65 exactly parallel to the lower band wheel 16 on two tabs

F i g. 2 shows a front view of the band saw at removed 29, 30 are guided in the machine housing. This is

taken housing cover, a sideways twisting and falling out of the wheel mounts

F i g. 3 a partial section through the storage of the size 19 is reliably prevented. When clamping the saw