SI9110163A - Vertical band saw - Google Patents

Abstract

A vertical band saw with a frame is given of the machine, further with a saw blade cutout equipped with reception for sawed material as well as with bust vertically mounted wheel mounts over whose the wheels pass an endless saw blade and it runs out above and below the material area with the wheel carrier related instructions for rotation in the cutting plane, at bringing the saw blade and the plane-assisted material cutting horizontally oriented movements of the other agile towards the other to perform the work stroke sawing. It is intended to be a wheel carrier rotating about substantially vertical rotary axis and fixable in any rotary position.

Description

Applicant

KEURO MASCHINENBAU GmbH & CO.KG

Industriestrasse 14

7590 ACHERN-GAMSHURST, Germany

Inventions tel j

Dieter SPATH, Dr.Ing

Bachmatt 24

7595 Sasfoachwalaeri, Germany

Annin STOLZER, Ph.D. Ing.

Im Meyers 8uhl 3

7592 Renchen, Germany

Vertical band saw

FIELD OF THE INVENTION

The field of the invention is a vertical band saw with a machine frame, a receptacle having a cutout for a saw blade, for a sawed material, as well as a wheel carrier mounted substantially vertically, through which, above and below the area of the material, rotatably mounted Wheels whose pivot axis is substantially horizontal to the cutting plane by an angle equal to or less than 90 °, runs an endless saw blade, passing above and below the material region by guides connected to the wheel carrier for rotation in a plane cutting, whereby the saw blade and the material are movable essentially in a horizontally directed motion towards each other, in order to carry out the working stroke of the saw, thus bringing the saw blade with the material at the point of the notch into the saw blade.

State of the art and technical problem

In the case of such known vertical band saws, the rotary axes of the wheels have a tilt of 45 ° with respect to the cutting plane, but no limitation is given. In addition, material clamps are provided as a rule, which are mounted - to securely hold the material preferably on both sides of the cutting plane.

Known vertical band saws allow the cross-section of the saw material to be cut when positioning the cutting plane transversely to the feed direction. Oblique cuts where the cutting plane is rotated towards the feed direction but are not possible.

On the other hand, they allow known vertical band saws, in which the workbench of the machine frame is not equipped with clamping means, to a certain extent hands-free sawing, with the machined piece of material being supplied by hand below the corresponding angular position given by the cutting plane of the saw blade.

To make oblique cuts, we use cold circular saws, in which we can rotate the saw blade and thus the plane of cutting into the oblique angle.

Such cold circular saws have the disadvantage, however, that the sand of the material is limited by the size of the saw blade radius against the possibilities of the vertical band saw of this type and by the fact that the circular saw blade is not straight, but rather an arc-shaped incision, which makes it impossible to make a straight cuts, that is, not entirely through cut cuts with a straight cutting line.

Cold circular saws are not otherwise suitable for hands-free machining. cutting the workpiece material as described previously.

Description of the solution of the technical problem and examples with a list of pictures

It is therefore an object of the invention to construct a vertical band saw of the initially named type, in addition to making straight cuts, but also to making oblique cuts with positive and negative oblique angles depending on the direction of material feed. It must further enable the cutting process to be interrupted further, that is to say making partial cuts with a straight cutting course. The vertical band saw should have a compact, simple structure, particularly lightweight construction and final arrangement for very light handling of sawing parts, while keeping the current vertical band saw capabilities, especially with regard to the hands-free saw described above. .

According to the invention, this task can be solved fundamentally in such a way that the wheel carrier rotates about the substantially vertical rotary axis and that it can be fixed in any rotary position.

With this measure according to the invention, the wheel carrier and thus the plane of cutting can be adjusted to different oblique angles depending on the direction of delivery of the sawed material without any displacement of the center of gravity of the wheel carrier and the related static and guiding problems, because The wheel carrier remains static in its original vertical equilibrium position, regardless of the setting of the various oblique cutting angles, which is especially important for the design of the guides of the Dornik wheel carrier.

Adjusting the various settings of the slant angle of the invention according to the direction of feed of the material in the vertical direction of cutting otherwise causes the material to be inclined at such angles of slant to the line of the plate, which has in principle been avoided for fear of impure cuts. However, it has been shown that such an oblique incision is possible and leads to good results.

Due to the elimination of balance shift problems related to the alignment of the inclined wheel carrier bracket, there is now also the possibility of designing a lightweight wheel carrier as a compact unit containing all the necessary components for the saw blade drive resulting from the wheel carrier with a flange attached to the drive train. motor, guides for saw blade diverting, steering and adjusting cutting conditions including the necessary handling tools, etc. In this way, a vertical band saw can be formed essentially like a wheel carrier including a construction unit designed for the operation of the saw, and this unit can be fully rotatable with respect to the vertical rotary axis and against the frame of the machine or machine. the material is movable without causing any static problems in any form, depending on the respective angle of inclination. Otherwise, with the necessary parts of the invention, with all the necessary parts, a band saw machine included in the wheel carrier can be freely operated with respect to the frame of the machine, and thus the workpiece clamping as to the feed in the direction of the workpiece material as well as differently adjusted oblique cutting angles a.

With the help of the named conditions, the invention can also be used to make the wheel carrier according to its construction light and simple, which also includes guiding and mounting the wheel carrier against the machine frame.

Particularly light and small force requiring cz handling is included in this. movement of the wheel carrier that requires appropriately sized and adjustable means of adjustment and guidance.

As appropriate. showed the vertical positioning of the rotary axis. If the rotary axis passes through the cut location, it forms a practical penetration line, which originates from the cutting plane on one side and from the sides of the wheel carrier on the vertical contact plane of the material. This has the advantage that the cutting position of the saw blade does not change with respect to the workpiece material due to the different adjustment of the angle of inclination, so that no correction values are required in relation to the longitudinal adjustment of the workpiece material. '

In order to handle the vertical band saw according to the invention, the material can be moved in the direction of the cut against the saw blade, which can be realized, for example, by horizontally moving sleds for receiving workpiece material. Then the material moves in the direction of cutting manually or also. 2 otherwise in accordance with the guided movements toward the saw blade.

In principle, an alternative is provided in that the movable wheel carrier for feeding the saw blade is in the direction of the material and thus in the direction of the cut with the means of delivery. This inherently customary procedure permits the stationary attachment of the material, and is then provided by means of the corresponding movements of the wheel carrier of the saw blade in the direction of cutting through the material.

For both of the above-mentioned cases, it can be assumed that the material receptacle is, in the direction of the cut, as required, a movable table of the machine with a substantially horizontal storage surface, forming the machine table the frame of the machine or machine. is formed on it.

In this case, the table of the machine with the wheel carrier may be a rotary rotary table and it can be assumed that the rotary axis of the rotary table coincides with the rotary axis of the wheel carrier.

In order to receive the saw material, it is appropriate that it is provided for the saw material on the side of the material facing the wheel carrier and at least on one side of the cutting plane of the saw blade a firmly fixed contact bridge with a substantially vertical clamping surface for the material. In this way, the material can be positioned in a certain way parallel to its longitudinal course, in order to be fed either by movement of the material in the direction of the saw blade and parallel to the incision towards the saw blade, or by allowing the wheel carrier to be cut and thereby the saw blade in such a form that the material is in a predetermined position provided by the bridge.

In the sense of the foregoing, it is appropriate here that the pivot axis of the wheel carrier is in the plane of the clamping surface of the contact bridge of the device. In this way, the clamping surface is a vertical contact plane to the workpiece material in which the pivot axis of the wheel carrier lies so that, regardless of the respective adjustment of the rotary position of the wheel carrier, the cutting position between the saw blade and the material is always the same and therefore no adjustment is required, depending on the set inclination angle.

In order to further form a firm engagement of the material during the cutting process, it is preferable that at least for the material horizontally opposite to the contact bridge, a clamping jaw is installed against the suspension bridge, which can be opened, closed, and essentially also has a vertical clamping surface. With this clamping jaw, the material can be compressed against the clamping surface of the suspension bridge.

In this context, however, the clamping surface may also be directed in the direction of the cutting of the saw blade, extending vertically away from the saw blade. Such an arrangement allows the wedge between the material and the clamping surface or the clamping surface to be allowed. its clamping surface due to the cutting force exerted by the saw blade, which serves as an additional fixed support for the material during the cutting process.

In order to allow sufficient freedom of movement for the saw blade transversely to the cutting plane for the saw blade below, it is appropriate for the clamping jaw to exhibit a lightweight incision of the saw blade on the facing side, if necessary, so that it does not feel the saw blade. complete puncture of the material even at the slight sloping position of the saw g

no barrier in the clamping jaw.

Alternatively to the foregoing, it may be provided that at least one clamping jaw is provided beside the cutting bridge in addition to the cutting plane, which clamps the material vertically against the table of the machine and can be opened and closed.

Such a vertical clamping jaw, which can be combined, for example, with respect to the structural members with a bearing bridge, gives an alternative especially with regard to the workpiece materials of complicated surfaces that may be difficult to grip with a horizontal clamping jaw.

It is understandable that both the horizontal clamping jaws and the vertical clamping jaws may be provided jointly with the vertical band saw according to the invention, to be used alternatively or jointly.

Furthermore, it is appropriate that the saw blade guide on the wheel carrier formed beneath the material area be fixed and the saw blade guide mounted above the material section on the wheel carrier in the direction of the saw blade adjustable and secured. Both saw blade guides can therefore, in the sense of the above, be an integral part of the wheel carrier and allow for the narrowest adjustment with regard to the respective cross-section of the workpiece or the workpiece. cross-section of the material so that the saw blade runs always directly next to the material and can be opened against the emerging cutting force. Neither horizontal nor vertical clamping jaws obstruct this.

To produce feed size in the cutting direction between the wheel carrier or the saw blade on one side and the material on the other, the wheel carrier can be moved in the 'cutting direction along the guide, rotatable and fixed around the vertical rotary axis, essentially horizontally running. This translates into a translational movement of the wheel carrier in the direction of cutting towards the material.

Alternatively, in principle, the wheel carrier can be rotated forward about a vertical rotary axis, rotatable and fixed, substantially transversely to the cutting direction, and horizontally mounted rotary axes in the cutting direction.

Thus, while in one case the wheel carrier is movable translationally towards the material, and to the extent that the saw blade is guided in maintaining its direction of flow through the material, in the other case it is provided for the wheel carrier to rotate about in front of the material of the bearing axis of the wheel carrier, around which the wheel carrier is guided, and thus the saw blade in the process of cutting through the arc-shaped material.

For both feed options, it may be assumed that a horizontal guide is installed. pivotable axle on machine parts that can be twisted. on the machine frame around the vertical rotary axis. Thus, a machine part for mounting and guiding the wheel carrier is provided on the frame of the machine, wherein the machine part itself is twisted around the vertical rotary axis according to the invention and thus co-existing via the guide or. the roller bearing of the wheel carrier itself the wheel carrier with respect to the rotary adjustment about the vertical axis.

There are different shapes for machine design. The following lists some options without limiting the scope of the invention.

What they have in common, however, is that such a machine part can be rotated in a known manner by rotating on the machine frame, so that high requirements are met with respect to precision and airlessness.

Thus, the machine part can be the aforementioned rotary table, thus simultaneously holding the saw blade as a rotating unit and thus, within wide limits, regardless of the angle of inclination, the unit is always available.

Otherwise, it is possible, in the normal case, that the material machine frame receptacle has an opening for a saw blade that leaves the entire area of feed of various angles of oblique cutting free. When designing a machine part that bears a horizontal guide or. The pivotable axis of the wheel carrier, as a rotary table, can be shown by years originating from the center or. vertical axis of rotation in the direction of the saw blade feed, a cutout for the saw blade passage, since such a cut is then pre-.....

This allows the saw blade to always move freely, which in turn reduces the workpiece material attachment only by the size of the cut, only allowing short pieces of material to be machined.

In order to allow the wheel carrier against the pivot table the necessary freedom of movement, it is only necessary that the pivot table, starting from its center of rotation in the direction of the wheel carrier, be essentially discharged in the form of a quarter circle for receiving the wheel carrier and the parts associated therewith in the plane of the rotary table, as well as to release the rotational motion of the wheel carrier between the two outer positions of the wheel. The discharge of the rotary table is therefore adjusted in the plane of the rotary table to the outer contour of the wheel carrier, including its associated parts, so that the wheel carrier is quasi-freely movable within the rotating table, which at the same time bears horizontal guides or. retractable wheel carrier guides with respect to maximum feed movement. Because this discharge of the rotary table is located in relation to the workpiece or the workpiece. in each case, the material is essentially behind a rigid bearing bridge, which cannot result in obstruction of the substrate or surface. workpiece supports on the rotary table.

As for the mounting of the machine part, which exhibits horizontal guidance or. reversible steering of the wheel carrier, respectively. rotary tables, it is appropriate that the machine part or. rotary table pivotably mounted on the machine frame along its circumference. For this purpose, it may be assumed that the machine part or. pivoting table extending a circular cylindrical attachment so that the attachment has a guide groove at its lower end inside and outside, and that there are guide rolls engaged with the guide groove which are rotatably mounted on the machine frame about a vertical axis.

Thus, a relatively large perimeter is provided for the rigid running of the machine part or. rotary tables, both horizontally and vertically, which can be shaped appropriately safe against rolling and stable, and on the other hand ensures that the saw blade does not get dirty or dirty. obstacle.

Another possibility is that the machine part is. the pivot table in the area of the legs of the machine body is pivotably mounted, and it can be assumed that the machine part or. the pivot table is connected to the horizontal footplate by means of vertical support means, and that the footplate on the machine body is pivotally mounted through the radial - axial bearing.

This rotating exercise is subject to the aforementioned advantages.

If the former is essentially horizontal running of the wheel carrier, it may be envisaged that there is a horizontal guide of the wheel carrier from the guide bar, which is enclosed by the corresponding guide section of the wheel carrier, as well as from the anti-roll or anti-roll bar. a rotating protective design which is supported by a support arm which arises from the guide portion of the wheel carrier and which is movable with its end.

This horizontal guidance design creates a particularly simple, custom-built construction, which, in turn, guarantees the highest degree of stability and protection of the wheel carrier against rejection from its vertical position.

In doing so, the guide bar may be substantially circular in cross-section, resulting in a particularly advantageous horizontal guidance.

In order to rotate the wheel carrier forward in the cutting direction about the pivot axis, it is advantageous that this pivot axis in the direction of the saw blade is guided essentially horizontally adjustable and movable. In this way, the saw blade can be occupied after cutting the workpiece material at the end of the cutting cutter in the vertical direction of the run, which proves to be particularly advantageous, for example, on the horizontal jaw. In this case, the displacement of the vibration axis can be effected with an adjusting spindle mounted on the inverted part of the machine rotating or axially stationary.

For both of the options described above for feeding the saw blade in the material direction, both for horizontal feeding and for tilting the twisting feed, it is appropriate that the feed means attached on one side to the machine part and on the other to the wheel carrier rotate, wherein the means of delivery may be, for example, a hydraulic, ci 1 i n-piston unit or a teaching spindle.

In order to set the fall size for the wheel carrier depending on the cross-section of the saw material, it is preferable in the case of horizontal .....

by guiding the wheel carrier so that it is mounted parallel to the horizontal guides on the machine part by at least one attachment to restrict movement and, if necessary, to return the wheel carrier. The nozzle may be adjustable by means of a rotating bearing spindle mounted on the machine part and the nozzle may be actuated by the nozzle, which is at least indirectly firmly connected to the wheel carrier.

Such adjusting means, in particular, allow us to limit the delivery of the saw blade so that the material is only partially cut, that is, the material does not cut completely, which is especially necessary for the production of cutouts from the material, whereby such cutouts can be made vertically a band saw according to the invention from different adjustments of the rotational position of the wheel carrier in combination with different feed positions of the workpiece material in its longitudinal direction, with the saw blade cutting the material at two different positions at different angles of oblique cut.

Sawn workpiece materials have very different cross sections. On the other hand, in the case of a vertical band saw, we draw from the corresponding vertically running cutting line. In pairs, the cutting line / cut section of the workpiece can be followed to hit the saw blade with a cut on a large surface of the workpiece, which simultaneously causes many saw blade teeth to adhere to the workpiece material, which in principle is problematic for a clean cut, regardless of which cutting angle hits the saw blade on the workpiece.

In the same way, the vertical arrangement of the cutting section for cutting different profiles results in an unfavorable ratio of the maximum to the minimum cutting length, which leads to a decrease in achievable productivity.

In order to solve this problem in the context of the invention for horizontally guided wheel carriers, it is envisaged according to the following feature that the wheel carrier rotates about its horizontal direction about substantially horizontal, transversely to the plane of cutting of the axial axis and, depending on the position of turning, is possible to be fixed. Preferably, the pivot axis of the wheel carrier is positioned in the middle region between the two vertical segments of the saw blade.

Thereby, the wheel carrier can be rotated according to the cross-sectional shape of the sawn material for an angle that moves normally between 0 'and 3', for which orders of magnitude from 5 to 10 ° may also be possible, in the direction of the workpiece by striking the saw blade with only a small length of grip for cutting into the workpiece, which initially contains only a small tooth of the saw blade with the workpiece material, which leads quickly to good guidance of the saw blade in the cutting area and thus to a clean cut. The associated change in the cutting length r elation results in productivity gains when cutting profi irt materials.

For the structural design of this rotation of the wheel carrier, it is preferable that the wheel carrier is connected to its guide part, which is involved in the longitudinal guidance, in a retractable manner. swivel and that it can be fixed according to the position of the roll or. twist. It can be assumed here that an adjusting device is provided for adjusting and stopping the rotation of the wheel carrier between the wheel carrier and the guide part, which may, for example, be shaped as a teaching spindle.

The previous problem with the possibly desired slanting of the material is essentially related to the horizontally guided wheel carrier. With a wheel carrier that can be rotated around under the workpiece material of the pivoting axle in the feeder or. in the direction of the cut, this problem is solved by tilting the saw blade against the material itself resulting from the rotary movement of the wheel carrier.

Is. a definitive restriction on the movement of the wheel carrier, however, if this movement is carried out by horizontal movement or by rotation about the axis of rotation, a switch lever extending into the area of movement of one edge or the front may be provided on the machine body. of the wheel carrier surface which can be adjusted according to the size of the wheel carrier displacement, conditioned by the cross-section of the material. This is in contrast to the previously discussed stop adapter, the setting of which depends on the cross-section of the material being machined, and which ensures that the wheel carrier disengages after cutting the material and moves back when necessary.

In doing so, said switch lever may be positioned below the saw material receptacle, in the frame of the machine, cooperating with the leading edge or. the front face of the wheel carrier. Thus, in the case of the previously emphasized pivot table, it is adjustably positioned below the pivot table.

As mentioned above, the vertical band saw according to the invention in its basic structure is particularly suitable for the execution of so-called hands-free cuts, ie such cutting work moves, in which the material of the saw blade is fed by hand through the material receiving in a manually controlled manner . In particular, it is appropriate for the wheel carrier to be locked in its own, depending on the cutting direction at the far front of the feed position, since the workpiece can be moved completely unhindered from other components of the vertical band saw in a free way against the saw blade. In this respect, the vertical band saw according to the invention has the particular advantage of keeping all the essential parts out of the material receiving area so that the workpiece material can be moved freely against the saw blade.

In summary, the invention is a vertical band saw, which enables everything when sawing material, especially pole-shaped material, to perform work moves in a simple way, without creating a complicated and expensive, difficult-to-handle and demanding machine. after construction effort. By contrast, the measures according to the invention provide a very easily built and in its handling a suitably uncomplicated machine, which can be easily and inexpensively produced without having to compromise in any way with regard to its versatile usability. usability.

Further features and details of the invention follow from the following description of the embodiments shown in the drawings, the drawing drawings being limited by the omission of details to the presentation of the essential parts. The pictures show:

FIG. 1 is a perspective overall view of a vertical band saw according to the invention;

FIG. 2 is a side view of the machine of FIG. 1;

FIG. 3 is a front view of the machine of FIG. 1;

4 is a plan view of the machine of FIG. 1;

FIG. 5 is a vertical cross-sectional view of the machine along the line V-V of FIG. 4;

FIG. 6 is a cross-sectional view of the machine cross-sectional view of VI ~ VI in FIG. 4;

FIG. 7 shows a machine variant according to FIG. 5;

FIG. With a cross-sectional view of the machine along the line VIII-VIII in FIG. 4;

FIG. 9 completed respectively. otherwise designed machine view in the view of FIG. 4;

FIG. 10 to 15 different operating positions of the machine according to FIG. 1 to 9 in simplified view;

FIG. 16 is a sectional view of the vertical band saw in sectional view according to the method of FIG. 5;

FIG. 17 is a side elevational view of the machine of FIG. 16 in a cut-out representation according to the method of FIG. 8;

FIG. 18 shows a further embodiment of the machine in a cut-out representation according to the method of FIG. 5;

FIG. 19 and 20 are a side view of the machine according to FIG. 18 in two different working positions and cut in the manner of FIG. 8;

FIG. 21 is a further construction view of a vertical band saw in a cut out side view according to the method of FIG. 8 and FIG. 22 is a further embodiment of the machine according to the construction form of FIG. 21.

First, we will examine the different views of the vertical band saw according to the invention according to Figures 1 to 4.

This shows a frame l of a machine whose workbench, in the form of a rotary table 2, supplies a saw-like material 3 in the form of a rod over a guide line 4, for example a rolling line, and by which a cut material is discharged via a guide line 5, for example a rolling line.

A vertical carrier of 6 wheels is mounted on the machine frame 1. This shows the upper wheel 7 and the lower wheel 8, which runs around without .....

end saw blade 9. The rotating axes 10 of the wheels are inclined towards the cutting plane 11, visible or respectively. continued with FIG. 1 to 4 for an angle below 90 °, in this case 45 °.

The guides 12 (see also Fig. 5 or Fig. 7) and 13 are used to rotate the saw blade 9 into the cutting plane 11, with the guide 12 being mounted firmly against the work plane 3 on the wheel carrier 6 while the guide 13 corresponding to the direction of arrow 14 in FIG. 1 on wheel impeller vertically movable in guide 15 and firmly attached. firm attachment of the guide 13 of the saw blade inside the guide 15 is not shown in detail. This may be an example of a clamping screw or the like. ^r

To hold the saw material 3 on the rotary table 2, a roller bridge 16, firmly mounted on the work table of the machine frame 1, consists in this case of two sections allowing the passage of the saw blade 9 in the direction of the workpiece material 3 by means of the workpiece 6 notch 17. The parts of the drawbridge 16 are connected outside the pivot table 2 firmly to the machine frame 1 and allow, during these connections, the free movement of the pivot table 2With the outer ends of the parts of the drawbridge 16 extend horizontally transversely to the feed direction of the workpiece material 3, the extendable guide bars 17 ', 18 on which a movable clamping jaw 19 is clamped, which clamps the workpiece material 3 against a vertical clamping surface 20 of its own bridge, as well as a vertical clamping surface 21. The clamping jaw 19 may be secured to guide rods 17 'and 18 by means of a hand served clamping screws 22, 23.

The clamping jaw 19 may be provided as in FIG. 2 as indicated, also with the clamping surface 21 ',' inclined from the top to the bottom, in the direction of cutting the saw blade, extending away from the saw blade towards the vertical. Thus, the action of the saw blade wedge between the material and the clamped jaw can be utilized in order to better hold the workpiece material.

Alternatively or in addition to the clamping jaw 19, a vertical clamping jaw 55 may be provided which, as indicated in FIG. 2, vertically movable on the retainer 26 attached to the suspension bridge 16, with the adjusting spindle 57, the adjusting spindle 57 being manually operable with the receiving cross 58. In this case, the sliding drawbar 59 of the adjusting spindle is rotatable around the retainer 56 and can be varies in its horizontal position so that different distances between the holder 56 and the adjusting spindle 57 can be adjusted.

To perform the sawing workflow, it is, as a first step, based on FIG. 1 indicated by double arrows, the 6 wheel carrier movable along the arrow 24 horizontally in the direction of the saw material 3. In order to allow the wheel carrier to have the necessary movement freedom within the rotary table 2, the rotary table shows a substantially quarter-shaped discharge 25 corresponding to the horizontal outer the contours of the 6 wheel carrier and the work associated with it in the plane of the plane of the rotary table.

In addition, the wheel carrier is reversible along the arrow 26 opposite the vertical, leaving the saw blade 9 within the cutting plane with its part lying between the guides 12, 13 in such a rolling motion.

Finally, the rotary table 2 along the arrow 27 is rotatable or rotatable. rotating, whereby the 6-wheel carrier makes this rotary motion together, so that the angles of inclination can be adjusted against the saw material 3. The rotary position of the rotary table 2 can be arrested at any desired angle. Known remedies can serve for such arrest. Here, for ease of reference, the manual operation of the 28 corresponding track preparation is shown.

Finally, it should be emphasized that the rotary axis 29 of the rotary table 2 and, consequently, the cutting plane of the saw blade 9 in the clamping surface 20 of the bearing bridge 16, therefore coincide with the line along which the workpiece material 3 is engaging. In this way, the workpiece 3's firing point is always in the same place, regardless of the rotary position of the rotary table 2 of the 6-wheel carrier. This prevents the different cut points on the workpiece material from being taken into account for different settings of the rotary table 2 and the 6 wheel carrier. This is important for adjusting the workpiece material settings, since there is no need to perform any length correction24 tours depending on the angle setting.

In order to allow the saw blade 9 to move without cutting collision at the cutting movement within the rotary table 2, the rotary table 2 has a cutout 30 for the saw blade, which corresponds to the foregoing with respect to the angle of the rotary table and the wheel carrier rotate together. This cutout is why. that the contact surface of the workpiece material 3 on the rotary table 2 is as large as possible.

Further details of this first, principally explained structure of a vertical band saw including its essential modes of operation will now be explained on the basis of the following figures.

First, let us turn our attention to Figs. 5 to 8 mounting the 6 wheel carrier with respect to the feed movement along the arrow 24 of FIG. 1.

As can be seen from FIG. 5, 7 and 8, is connected to the pivot table 2 by a guide bar 31 with a substantially circular cross-section through a workpiece downwardly extending a circular cylindrical attachment 32 or. vertical support means 32 '. On the guide bar 31, the wheel carrier 6 with its guide member 33, which completely encloses the guide rod 31, is moved parallel to the cutting plane. In order to prevent the wheel carrier 6 from rotating on the guide bar 31, a support arm 34 is provided from the guide rod 33, which grips with its free end to a rotation guard 35, which is arranged parallel to the guide rod 31 on the rotary table 2.

The actuation of the feed movement is accomplished by a cylinder-piston unit 36 which engages rotatably on one side on a circular-cylindrical extension 32 or. on the support means 32 ', while on the other hand it is attached to the guide bar 33 which is connected to the carrier of the bicycle wheels.

This makes it easy and inexpensive to operate the feed for the 6-wheel carrier.

FIG. 5 and 7 show, at the same time, different mounting of the rotary table 2, and thus via the substantially guiding rod 31 also the carrier 6 of the wheel.

Thus, according to FIG. 5, the rotary table 2 is provided on its circular cylindrical extension 32 with respect to its lower end with internally and externally running guide grooves 37, 38 into which the guide wheels 39, 40 'which are mounted on the frame 1 of the machine rotate about a vertical axis. As in FIG. 9 it can be seen that these guide wheels are multiply distributed over the circumference of the rotary table. In this way, a stable bearing for the rotary table 2 on the one hand and for the support of 6 wheels and the related machine part on the other hand are formed along a large scale and thus in a particularly rollover - safe manner.

f

Another embodiment illustrates FIG. 7. There, a rotary table 2 is provided with downwardly projecting support means 32 'which are connected to a foot plate 40, which is again pivotally mounted on the machine frame 1 via a radial-axial bearing 42. It is always a rotary axis, as was already the case with FIG. 1 is explained, from FIG. 7 again visible axis 29.

FIG. 5 ir, 7 show in addition to the horizontal guides of the 6-wheel carrier on the rotary table 2, adjusting means 42 are provided to restrict movement and, if necessary, to rotate the 6-wheel carrier in the feed direction along the guide bar 31. These adjusting means, movable on the guide 61, They can be adjusted by means of an adjusting spindle mounted on the rotary table 2. They are actuated by stopping noses 62. which are connected to the guide part 33 and thus indirectly to the wheel carrier. In this way, the feed movement of the 6 wheel carrier can be arbitrarily restricted so that any partial cuts can be made on the material, ie such cuts where the material is only partially cut. If, for example, after the material 3 is fed at another suitable setting of the cutting plane angle 11, a further such partial cut of the same depth, a wedge-shaped cut may be made on the workpiece material.

Based on FIG. 1 to 4, the possibility of rotating along the direction of the arrow 26 with respect to the wheel carrier 6 is further mentioned. 6 with respect to FIG. 8, the guide portion 33 is interrupted so that the carrier 6 wheels are pivotably mounted on the guide member. swivel and fixable with respect to the reversing or. rotary position. To this end, according to FIG. 6, the guide portion 33, by which the carrier 6 of the wheels is engaged with the guide rod 31, is interrupted by a known rotary joint 43, wherein

- 27 is installed as can be seen from FIG. 2, axis 44 of the pivot joint in the middle region between the two vertical segments of the saw blade 9.

To adjust the tilting position of the 6 wheel carrier against the horizontal guides, a section of the guide portion 33 is mounted between the parts on the wheel carrier side of the pivot joint 43, on which a cylinder piston unit 36 is then secured, and an adjustment device 45 consisting of a supports 6 wheels of fixed forks with, from the wheel carrier forward, projecting fork arms 46, and permits adjustment of the pivoting position of the 6 wheels with, for example, operation of the adjusting spindle 47, which receives the thread on part 33 and is rotatable in the fork limb, but axially immobile. By adjusting the adjusting device 45, however, the reversing position within the pivot joint 43 is also arrested.

Referring to the normal feed limit for saw blade 9, depending on the existing cross-section of material 3, let us return to the illustration in FIG. 4. There is shown by a dashed line the switch lever 49, which is pivotally mounted under the rotary table on the machine frame. This switch lever, which can be manually or positioned manually, for example. adjustable and secured by the clamping bolt 63, it can engage the portion of the 6 wheel carrier such that when the wheel is hit, the saw blade feed is broken and possibly reversed by the operation of known switching means.

The introduction of the description mentioned the possibility of hands-free sawing. For this purpose, it is possible to release the movable clamping jaw 19 from her, from FIG. 1 of the visible guide pads 50 by means of clamping screws 22, 23, so that the material can be fed 3 manually at the corresponding release of the clamping joint of the rotary table 2 by means of the lever 28 in the workpiece lying on the rotary table 2, whereby the operator can manually by rotating the rotary table 2 and also by the guide 6, the saw blade cuts the workpiece of the corresponding pie contour. Therefore, after the removal of the clamping jaw 19, the described machine does not offer any obstacles for this hands-free saw. In addition, for carrying out such hands-free sawing, the carrier of the 6 wheels is driven into its forward position and secured there so that the saw blade is suitably freely accessible to all sides.

FIG. 9 shows again a view of a vertical band saw according to the invention with as complete a representation as possible of machine parts below the working plane. It follows from this that the drive motor 51 as a building unit is particularly associated with the wheel carrier. Further existing, not shown building units include, among other things, a switch panel for setting operating and feed sizes. In this way, FIG. 9 In particular, it is clear how the wheel carrier is designed in conjunction with all for the operation of the saw blade .....

necessary units and units as a quasi stand-alone, on a rotary table and thus on a machine frame a movable saw unit, which is not subject to any restrictions in its freedom of movement with respect to the workpiece, to be made on the workpiece of any oblique cut, partial cut, hands-free contour etc. The vertical band saw according to the invention thus proves to be a machine that can be adapted to all the usual requirements of maintaining the optimum working conditions of the workpiece material during operation.

Based on FIG. 10 to 15 are shown once again in a simplified view of the various options of oblique cuts, each with a removable clamping jaw 19 omitted in order to. indicated appropriate hands-free sawing options.

According to FIG. 10 and 11 show a vertical band saw at the beginning of the cutting on one side and at the end of the cutting with respect to the maximum cross-section of the workpiece. Thus, the carrier of the 6 wheels is shown once in the starting position and in addition in the maximum possible feed position, with the maximum possible feed position in FIG. 11 also shows how? fits the outer contour of the wheel carrier together with its associated parts in the area of the rotary table 2 into a quarter-notch 25 of the rotary table. FIG. 10 and 11 show the plane of the cut perpendicular to the clamping surface 2 of the bearing bridge 16, ie transversely to the feed direction of the workpiece material.

Against the subject they say fig. 12 and 13 rotate the tool in which the cutting plane occupies about 45 ° to the specified feed direction of the workpiece material, measuring this angle in the reverse direction to the feed direction.

On the other hand, they say FIG. 14 and 15 a second rotary position of the wheel carrier 6, in which the cutting plane of the saw blade is measured by a slant angle of about 20 ° to the feed direction of the workpiece in a perpendicular direction, this time forward to the feed direction.

In particular, FIG. 12 and 13 clearly illustrate the following: if a saw blade is to be replaced, there must be as much accessibility and freedom of movement as possible regarding the removal of the replaced saw blade and the installation of a new saw blade. To this end, it is precisely when setting the machine according to FIG. 12 and 13, in the most advantageous way, by a vertical band saw, it reaches the wheel carrier without being particularly obstructed by the suspension bridge 16, the clamping jaws 19, etc. in the way. This is especially true if the machine is positioned in the manner not shown here with the back, ie with respect to FIG. 12 and 13 left outside along some wall so we can't get to the machine from behind. »

The following are further embodiments of the subject matter of the invention that are shown simplified in FIGS. 16 to 22, and also apply to these embodiments based on FIG. 1 to 15 the explanations and method of operation given.

While at FIG. 1 through 15 to the construction described, the 6-wheel carrier, which is movable in each case essentially horizontally on the machine part in the form of a rotary table 2 towards the material 3, is possible to add other principled possibilities for this movement. One of these options is illustrated in FIG. 16 and 17.

Here, the wheel carrier 6, with its lower end by means of a shaft 65, is rotatably pivoted about an axis 66, extending the axis 66 horizontally transversely to the cutting plane provided by the saw blade 9, the shaft 65 sits to its side in support means 67 in the form of a both sides of the carrier 6 wheels mounted, vertical faces, which are fixed on its side in a not fully shown manner on the rotary table 2 on its underside.

A support 6 wheels may be rotated about the axis 66, as shown in FIG. 17, through the cross-sectional area of the saw material 3, in which it rotates cylindrical-piston unit 67, which is pivotally mounted on one side on the rotary table 2 and on the other side on the carrier 6 of the wheels.

As can be seen, in this case the carrier of the 6 wheels is also rotatable around the previously exhaustively described axis 29 together with the rotatability of the rotary table 2 in the same manner as previously described.

In this embodiment, there is also the advantage that the workpiece material 3 is incinerated at the rotated position of the saw blade 9 so that only a few teeth of the saw blade 9 engage with the material 3 during the firing process.

In any case, the construction design according to FIG. 16 and 17 to the fact that at the end of the sawing, the saw blade 9 also has a retracted position against the material 3, so that

basically s) 1 to 4 already said jaw clamp. 19 from can saws and and veg. a material. so that the saw blade can 9 burns into this one mater ia 1.. which must be p o o o 1 <i č e (i e r, i č a u i: m e n j a t i ..

In order to prevent these things, the measures envisaged are in accordance with the reconfigured building form of FIG. 18 to 20.

Here again bracket 6 bicycles with its lower koncc ^j m of the shaft 70 about an axis 71 rotatably pivoted, wherein the shaft 70 is movable horizontally over leading blocks 72, 73 in the bracket means 74, which are further not shown manner is attached to the underside of the rotation tables 2.

The axis 71 lies again transversely to the cutting plane determined each time by the saw blade 9. The displacement of the hammers 72, 73 is made by adjusting spindles 75, 76 which are rotatably mounted and rotatably driven in the machine frame.

As in FIG. 19 and 20, can be adjusted by means of adjusting spindles 75, 76 such a possible point of the wheel carrier 6 that the saw blade 9 stands vertically at the end of the cutting work stroke.

Here is a fig. .19 case of partial cut, that is, such a cutting process in which workpiece 3 is cut only partially. This is illustrated by FIG. 20 is a case where the saw blade cuts the workpiece 3 in its vertical position.

Also for the construction of FIG. 18 to 20 are otherwise subject to structural boundary conditions, which have already been explained in FIGS. 1 to 4, which are indicated here again using the numbering there.

The delivery of the 6 wheel carrier is also carried out in the embodiment of FIG. 18 to 20 again with a cylindrical-piston unit 77, which is pivotally mounted on the machine part in the form of a rotary table 2 and on the other hand on a carrier of 6 wheels.

While in the present embodiments, the rotation of the 6 wheel carrier around the vertical axis 29 has always been shown via the machine part rotatably mounted on the machine frame 1 in the form of a rotary table 2, there are also various possibilities for this. One of these possibilities is illustrated in FIG. 21. There is a machine part formed, in essence, a C-shaped frame 80, the lower arm 81 of which with its free end is still pivotably supported by the pivot bearing 82 on the machine frame 1 relative to the axis 29.

On its upper, horizontal arm 83, the carrier 6 of the wheels is movably arranged with the help of the mounting bush 84 fixed on the carrier 6 of the wheels, this movable device being 'substantially shaped in the same way as in FIG. 5 to 8 are exhaustively explained, including the additional reversibility of the 6 wheel carrier about the axis 44 by dividing the guide portion 33 with the help of it, about the axis 44 of the pivotally mounted part 43, whereby a twisted movement can be performed with the teaching device 45 by means of the adjusting spindle 47.

In the case of FIG. 21, the wheel carrier is fed by means of a cylindrical piston unit 84, which is pivotally coupled on one side to the free end of the upper arm 83 of the C frame 80 and on the other to the 6 wheel carrier.

The embodiment of FIG. 21 forms a striking example at. to which the non-shown workpiece material is substantially supported only by a guide line 4, 5 as shown in FIG. 1, so that it is in the field of the machine frame; prost.

FIG. 2? shows, once again, in a greatly simplified, object-like variant of FIG. 21, characterized in that it exhibits the upper kcal · 83 'of the C-shaped frame 80 in the direction of delivery of the 6-wheel carrier, respectively. saw blade 9 has a downward tilt, which supports the work of feeding in the direction of the workpiece by means of a specific gravity component. Otherwise, they are considered to be the embodiment of FIG. 22 explanations to the other figures, and in particular to FIG.

.

To all in Figs. 1 to 22, the vertical band saws shown should be noted that in the area of the bearing bridge 16, ie essentially in the area in front of the wheel carrier, at its backward displaced position of the area for the material being machined, there are no machine parts here, is of particular importance for the many times discussed hands-free sawing. As for the frame 1 of the machine, it is the lens, which can be seen in particular from FIG. 2, conveniently designed for the operator, so that the operator can step very close to the 12 frame of the machine without difficulty and can access the processed material unobstructed.

Based on the embodiment in FIG. 21 and 22 were particularly noted. to work here without a rotary table or other construction work that would form a machine table. This can be very suitable for special cases, because the saw cuts and other dirt and waste cuts can easily fall down into the frame 1 of the machine, as special cases of use should be noted for cutting long material sections, such as profiles in connection with by running the material on rolling lines.

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61000 L.ru

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Claims (38)

PATENT APPLICATIONS 1. A vertical band saw, with a frame of a receiving machine having a cut-out for a saw blade, for a saw material, as well as with a wheel carrier mounted substantially vertically, through which wheels rotatably mounted above and below the material axis, the pivot axis of which is mounted in substantially horizontal to the cutting plane by an angle equal to or less than 90 °, an endless saw blade runs, extending above ... n below the material area along the guides associated with the wheel carrier to rotate into the cutting plane, the saw blade and the material are movable essentially in a horizontally directed motion towards each other, in order to carry out the working stroke of the saw, so that the saw blade with the material at the notch point is engaged in sawing, characterized in that the carrier (6) of the wheels is rotatable about essentially a vertical rotation axis (29) and in each rotary position of the fasteners iv. Vertical band saw according to claim 1, characterized in that the rotary axis (29) is arranged vertically. • Vertical band saw according to claim 1 or 2, characterized in that the rotary axis (29) passes through the notch point. Vertical band saw according to claim 1, characterized in that the material (3) is movable in the cutting direction (24) through the saw blade '5 _' iv - ' 61000 Lvt Vertical band saw according to claim 1, characterized in that the carrier (6) of the wheel for feeding the saw blade (9) can be moved in the direction of the material (3) and thus in the direction of cutting (24) by means of the feeding means. Vertical band saw according to claim 1, characterized in that the receiving material (3) is optionally in the direction of cutting a movable machine table with a substantially horizontal contact surface. Vertical band saw according to claim 6, characterized in that the machine table with the wheel carrier (6) is a rotatable rotary table (2) and that the rotary axis of the rotary table coincides with the rotary axis (29) of the wheel carrier. Vertical band saw according to claim 1, characterized in that it receives the saw material (3) on the material side facing the wheel carrier (6) and at least one side of the cutting plane (11) of the saw blade (9). . (16) having a substantially vertical clamping surface (20) for the material. Vertical band saw according to claim 9, characterized in that the pivot axis (29) of the wheel carrier (6) is located in the plane of the clamping surface (20). 11. Vertical band saw according to claim 9, characterized in that, opposite to the contact arm (16), there is at least one clamping jaw (19) that compresses the material (3) horizontally threatening the clamping surface, which can be opened and closed and has a right thus essentially a vertical clamping surface (21). Belt saw blade according to claim 11, characterized in that the clamping surface (21 ') is inclined in the direction of the running of the saw blade (9) running r: · o- · from the saw blade to the vertical. Vertical band saw according to claim 12, characterized in that the clamping jaw (19) on the side facing the saw blade (9) exhibits possibly interchangeable material for the light notch of the saw blade. Vertical band saw according to claim 6 or 9, characterized in that at least one clamping jaw (55) is provided adjacent to the contact bridge (16) in addition to the cutting plane (11), which compresses the material (3) vertically against the machine table ( 2) and can be opened and closed. Vertical band saw according to claim 1, characterized in that a saw blade guide (12) is mounted beneath the material area on the wheel carrier (6), and a saw blade guide (13) mounted on the wheel carrier in the direction of the material running saw blade (9) that can be adjusted and secured. 16. Vertical band saw according to claim 5, characterized in that itfl ia ,, in 61000, the wheel carrier (6) in the cutting direction (24) is movable along the guide (31, 33-35, 83,83 '), which it runs essentially horizontally, which is rotatable about a vertically rotating axis (29) and can be fixed. Vertical band saw according to claim 5, characterized in that the wheel carrier (6) is rotatable forward in the cutting direction around a rotating vein of the axis (66, 71) substantially positioned transversely to the cutting direction (24) and horizontally and rotatable and fixed around the vertical rotary axis (29). 18. Vertical band saw according to claim 16 or 17, characterized in that the horizontal guide or. a pivoting axle mounted on a machine part (2,80) which is rotatable about a vertical rotary axis (29) and mounted on a machine frame. 19. Vertical band saw according to claim 1, characterized in that the machine part is provided as a rotary table (2). 20. Vertical band saw according to claim 19, characterized in that the rotary table (2) shows from the center or the from the vertical rotary table (29) in the feed direction (24) of the saw blade (9), the cutout (30) for the passage of the saw blade. 21. Vertical band saw according to claim 19, characterized in that it exhibits a rotary table (2) emanating from its center in the direction of the wheel carrier (6), a discharge (25) of substantially four-circle shape for receiving the wheel carrier and in the plane of rotation tables related to it ATTORNEY HitOSAVtetAOIhCViU 61000 Ljubl.Vna. Cf / rvr 177 parts as well as freeing up the g i bet space of the wheel carrier r r i ¢ 3 o n j e g c. ·· i m i s kr a j n i -1 i z uri a: t j i tn i after d aj n i m i at 1 o w a j. 22. The vertical band saw according to claim 18 or. 19, characterized in that the machine part or. rotary table (2) pivotally mounted on the machine frame (1) along its circumference. 23. Vertical band saw according to claim 22, characterized in that it shows the machine part or. pivot table (2) downwardly extending, circular-cylindrical nozzle (32) so that the nozzle has a guide groove (37, 38) externally and internally in its horizontal end and that the guide grooves (39, 40 ') are provided with the guide groove ). located on the machine frame (1) around the vertical o e i rotating in 1 e z a j e n i 24. Ve rti 1 na t al i ra a saw according to claim 18 or. 19, characterized in that Yes is machine part or. rotary table (2) in area legs of the frame (1) machine garden 1 j 'v o v 1 eager. 25. V e r t j, k a 1 n a t rača saw according to claim 24, marked by being machine de! oz. rotary table (2) connected via vertical supports 5r «dit? v (32 '') with a horizontal footplate (40) and that it is> 'narrow grain n: machine frame (1) via radial ...... axial bearings (41) swivel. 26. Vertical band saw according to claim 16, characterized in that there is a horizontal guide of the wheel carrier (6) from the guide bar (31), which is enclosed by the corresponding guide section (33) of the wheel carrier, torque t. come in. from the parallels no, in addition to the installed bead of the t-vein or. guides '35) for securing a rotation, into which the support arm (34) emanates from the guide portion of the wheel carrier with its end · n. 27. Vertical band saw according to claim 26, characterized in that the guide bar (31) shows a substantially circular cross-section. 28. Vertical band saw according to claim 17, characterized in that the guided turning axis (71) is substantially horizontally adjustable and movable in the cutting direction of the saw blade (9). 29. Vertical band saw according to claim 28, characterized in that it is feasible to move the rotary axis (71) with at least one adjusting spindle (75, 76) which is rotatably axially fixed on the machine part (2). Vertical band saw according to claim 16 or 17, characterized in that the feed means are pivotally connected on one side to the machine part (2,80) and on the other side to the wheel carrier (6). 31. Vertical band saw according to claim 16, characterized in that at least one nozzle (42) is mounted on the horizontal guide on the machine part (2) to limit movement and possibly turn the wheel carrier (c). m i i. eui · 32. Vertical band saw according to claim 16, characterized in that it is mounted. parallel to the horizontal guide on the machine part (2) at least one nozzle (42) for limiting movement and possibly rotation of the support (ό) of the I-o wood. Vertical band saw according to claim 32, characterized in that the nozzle (42) is adjustable by an adjusting spindle (60) which is rotatably drawn on the machine part (2), and that the nozzles (62) interact with the nozzle. ) which are at least indirectly firmly connected to the wheel carrier (6) (guide portion 33). * 34. Vertical band saw according to claim 16, characterized in that the carrier (s) holes are substantially rotatable about their horizontal horizon, transversely to the cutting plane (11) of the laid axle (44), and fastens with respect to the turning position. iv. 35. Vertical band saw according to claim 34, characterized in that the grooved axial axis (44) of the wheel carrier (6) is in the middle region between the two segments of the saw blade (9). 36. Vertical band saw according to claim 34, characterized in that it is a carrier. (<'·.) Wheels on its own, with a longitudinal guide participating guide deJcm (33) / steerable or. is pivotally connected and that in relation to the reversing or. rotary position fastening. 37. Vertical band saw according to claim 36, characterized in that the adjusting device (45) inserted between the wheel carrier and the guide part (33) is provided for adjusting and securing the rotation of the wheel carrier (6). 38. Vertical band saw according to claim 37, a teaching device spindle (47). characterized in that 39. Vertical band saw according to claim 1, characterized in that it is positioned in the area of movement of an edge or an edge. of the wheel carrier (6) of the wheel extending switching lever (49) to limit the feed movement of the wheel carrier and that the switching lever is adjustable depending on the cross-section of the material. 40. Vertical band saw according to claim 39, characterized in that a switch is mounted on the lever (49) below the receiving (2) for the saw material (3) in the frame (l) of the machine, cooperating with the front edge or. the wheel carrier surface (6). 41. Vertical band saw according to claim 5, characterized in that the wheel carrier can be locked in its most advanced feed position with respect to the cutting direction (24).