EP1439044A1 - Wood working machine with a work stop system - Google Patents

Abstract

The woodworking machine has at least one stop (5) to guide the workpiece (W) on the resting surface (A). The machine has at least two stops (5, 6), which are fitted together on the base body (4) of the stop system. The stops are retracted into or moved out from the resting surface by moving the base body.

Description

The invention relates to a woodworking machine, in particular Format saw with a stop system, the a machining tool to be machined on the Support surface of a support table rests with several stops to guide the workpiece, at least one Stop is movable away from the support surface.

Stop systems for processing machines are known. there the workpiece to be machined is placed on the support surface Support table laid on and guided at a stop. The The stop is made before machining the workpiece desired width and then the workpiece on this Stop for processing led.

Such a stop system is for example from the Document DE 36 37 713 C2 known. There will be one Positioning device for plate or rod-shaped Workpieces presented in processing machines at the the level of the contact surface for the panels to be processed or rod-shaped workpieces a variety of stops is arranged by simply pivoting about an axis in the level of the processing table or support table can be pivoted. All attacks are on arranged in a single shaft and by means of a Actuator differently adjustable and each can be used individually. The positioning stops are in Machining direction or conveying direction arranged one behind the other and have the same distance from each other. The configuration shown here is structurally very complex and therefore expensive. Furthermore, this proposal is also in the Operation very cumbersome because the individual stops to operate or to control. A short term and rapid change of the stops, for example due to a Format change is not possible with this proposal.

A sliding table saw is also known, for example. such Sliding table saws have a sliding table, which runs past a saw blade. At the edging table is in the Usually a cross table is attached. The workpiece lies on it the edging table and, if appropriate dimensions, also on the Cross table on. The stop or the stops are then at the cross table and usually reach up on the edging table. When machining workpieces different Processing width creates the problem that one use different stops for certain working widths got to. The stops for smaller widths then hinder placing the workpieces, if it is, for example very wide workpieces that are on one of the machining tool most distant from the processing machine Stop should then be created. About a disability of the workpieces through the stops on the whole Then to prevent working width, the need to go to the machining tool then closer stops can be dismantled. This is a time consuming process, especially the Work processes hindered when often different Cutting widths of workpieces on the processing machines must be realized.

Based on the prior art set out above, the Invention the task of developing a stop system which no longer has the disadvantages described above.

The object of the invention is achieved in that at least two stops together on a base body of the stop system are arranged and the stops by movement of the base body are movable in or out of the support surface. Through the joint movement of the stops through the movement operability of the base body is considerably facilitated. The position of the base body is used to activate or Deactivate the at different positions if necessary arranged stops. This solution is also constructive easy to implement, which results in good ergonomics and Ease of use to implement the proposal according to the invention connects.

According to the invention it is also provided that the Attacks not only by the body with respect to the Support surface can be moved back. Of course they are all other movements conceivable that cause the stop of to move the support surface away, i.e. to position it in such a way that the stop no longer interact with the workpiece can. For example, it is also possible to follow the basic body move up, causing the stop to move away from the support surface is moved or the base body in a suitable manner rotate.

This solution becomes a woodworking machine according to the invention with an accurate and flexible stop system provided on the support table side, which for universal execution of cuts, in particular exact parallelism of the edges to be cut against the edge adjacent to the stops promoted becomes. Characterized in that at least one stop under the support surface can be lowered with the frequently occurring, different Widths at least the one with the smallest distance to the processing tool then stop under the contact surface be lowered when machining a wider workpiece must become. Furthermore, the contact surface to Example when loading with workpieces, such as large ones Wood panels can be cleared very quickly by simply all stops below the contact surface are lowered without that the attacks or those carrying the attacks Parts have to be disassembled. The Invention that the stop system has a plurality of stops and, for example, only one stop, if this is namely is not needed, is lowered and another stop still in use, so a stop for that Workpiece forms.

For example, it is possible that each on a support beam lowerable stops are used, which, depending on requirements, can be moved upwards over the contact surface if this are needed.

In an advantageous further development of the invention provided that the stops of the base body with different Distance to the processing tool and in different Locations, especially elevations or angles on Base body are arranged. For example, that the base body can be moved at right angles to the contact surface and the stops of different lengths, so that heights own and by the position of the body of the respective Stop is turned on or off. The same is in principle also possible with a rotatable body, in which the Stops in different angular positions of the rotatable body optionally also with the same or different lengths are arranged. The attacks are arranged at different distances from the processing tool, to easily change the format in the otherwise identical construction woodworking machine according to the invention to realize.

According to the invention it is provided that the base body is rotatable or longitudinally movable, in particular at right angles to Support surface can be raised or lowered. All of these different Variants serve the basic body with the on it arranged stops to move away from the support surface or vice versa, the stops analogously in the contact surface to position. According to the invention is also provided that, for example, the stops project upwards, but each have a different effective length.

According to an advantageous development of the invention Stop system is provided that the stop system is so low that each for processing suitable stop is positioned in the contact surface.

By means of one made available according to the invention System can be at least two, but in total also realize significantly more stops on the contact surface the support table are arranged, and then in are arranged at different heights, each of which The altitude is to be controlled, the stop width of the respective Stop is just needed. The base body allows a simple positioning of all stops to size. The various stops are at fixed intervals arranged from each other on the base body. A move of the base body thus positions the selected one Stop simple and easy to use. The same basic body serves with the same adjustment device for the dimensionally accurate Set all other stops if selected are.

The lowering or raising of the stops with respect to the contact surface takes place according to an advantageous embodiment parallel or perpendicular to the support surface of the support table. This ensures that always an exact Position the workpieces on the system edges can, which increases or ensures overall dimensional accuracy becomes. Solutions known from the prior art are either not lowered to another level at all or but only by swiveling one stop with several Stop surfaces, which is mounted on a shaft. This Solution, however, means that the attack is then no longer can be set exactly at right angles to the contact surface, so that the solution of the parallel or right-angled lowering of the stops with respect to the contact surface solves this problem elegantly.

According to the invention it is further provided that several stops are arranged on at least one base body, such that the stop, which is the closest distance to the machining tool owns, in the lowest altitude in relation to the working level and the stop with the greatest distance to the Machining tool in another, then highest arranged Altitude is arranged in relation to the working level. It So is, for example, a staircase-like formation of the provided individual stops on the base body, the individual stops are arranged at increasing heights, the further the stop is from the processing tool, the higher the altitude at which it is located.

Another aspect of the stop system according to the invention is indicated by the fact that several base bodies are provided, their distance from the processing tool adjustable or is adjustable. For one, is through this Embodiment ensures that the distance of the base body compared to the processing tool can be set to others is further guaranteed that, for example several base bodies with several stops arranged there, for example at the same distance from the processing tool can be arranged. Of course there is also one Arrangement of the desired stop in the desired Altitude allows.

According to an advantageous development of the invention it is provided that at least two base bodies by one common adjustment system in their distance from the machining tool are adjustable. By coupling the Basic body by means of a common adjustment system Setting the desired workpiece width is easier overall. So that the stop system according to the invention is still more comfortable.

According to the invention, it was also found that it is advantageous if a lowering device for lowering at least one Basic body is provided. By means of a lowering device can then via a corresponding actuator desired height of the base body and thus the desired stop can be set.

It is also advantageous if several base bodies via a common lowering device in different Elevations can be lowered or raised. This is particularly advantageous if the attacks or Base body are arranged parallel to each other, so that a longer workpiece at the corresponding stops of several basic bodies can be created at the same time.

Then of course it is very advantageous if this Have a common lowering device, the two basic bodies at the same time through an actuating action in the desired altitude.

An advantageous development of the stop system according to the invention is characterized in that at least three altitudes can be adjusted by means of the lowering device. For example, it is the one closest to the machining tool spaced side of the base body first stop. A second stop can then be spaced further apart graded on the base body at a higher altitude be arranged. Already with this simple embodiment by means of a base body with a raised stop on the farthest from the machining tool Side, can altogether three altitudes will be realized. It has also been found according to the invention that it is advantageous if the lowering device for the base body has a lowering mechanism that acts as a toggle lever mechanism with adjustable toggle levers and at least an additional rest position is executed. It is furthermore advantageous if the lowering mechanism is operated using a control element is operable. By executing the toggle mechanism with appropriate stop positions, is always accurate selected the altitude for the stop to be controlled. This is a simple but very effective one Embodiment for the stop system according to the invention.

According to an advantageous further development, it is provided that that the lowering device by a rack or a threaded spindle are specified. A control element is included of course also provided. It is still through this embodiment enables on the rack respectively the threaded spindle through the different heights Define locking devices or spacers precisely.

A further development of the stop system according to the invention is characterized in that a pneumatic or hydraulic cylinder forms the lowering device. Here too are certain Altitude provided by means of appropriate setting options.

Another aspect of the invention is indicated in that at least two base bodies are provided, which by at least one stop rail are connected to each other. The Stop rail is always an advantage when workpieces to be processed, which are to be cut in parallel, the however, are so short that they do not hit two stops can be applied at the same time. By means of this cross-connecting Stop rail, which is then parallel to the processing tool such very short workpieces can also be arranged cut very precisely and conveniently in parallel.

A further development of the stop system according to the invention suggests that two stop rails are provided, the at least two basic bodies corresponding to the lower one, front stop and at the top, rear stop with each other connect. This embodiment is particularly of Advantage if, for example, the workpiece is exactly the width of the Distance between the front, bottom and rear, has the upper stop. This embodiment can also do this can be used, for example, to slit workpieces or to be provided with a groove. The groove depth can here by means of the height adjustment of the base body with the stops arranged thereon are determined.

According to the invention, a guide system was also found, consisting of guides for each basic body. This ensures that the base body is always exact Can be positioned exactly parallel to the machining tool are.

It is particularly advantageous if a drive system is provided for each body. With that, the Base bodies in their spacing widths on the processing tool set even more comfortably. These drive systems are enables in different embodiments. For example are electric motor drives or actuators provided that the base body in each case in the desired position bring. Of course, an execution of the Drive system using hydraulic or pneumatic drives allows.

It has also been found to be beneficial if the drive systems for the base bodies are coupled in such a way that they always run in parallel and only one common actuator exhibit.

It is also advantageous if the drive system for the Basic body as a rack with pinion and the coupling as continuous axis connecting all pinions and the actuating element is designed as a handwheel. With that, everyone can Base body in its distance to the machining tool by the Adjust the actuation of the handwheel together.

In the event that a drive system is used for the base body which is not designed to be self-locking it was provided to arrange a clamping system for each body.

It is preferably also provided that all clamping systems to couple such that they are also a common Have control element and always clamped together or be solved.

An advantageous development of the invention accordingly provides before that the drive system for the base body or the stops are designed to be self-locking. So that Clamping systems described above are eliminated.

The invention also provides a woodworking machine, in particular a format saw with a stop system, as before described.

The invention is described below using exemplary embodiments and drawing further described.

Fig. 1

eine Seitenansicht des erfindungsgemäßen Anschlagsystems mit Grundkörper in abgesenkter Stellung;

Fig. 2

eine Seitenansicht mit Grundkörper in einer ersten angehobenen Stellung;

Fig. 3

eine Seitenansicht mit Grundkörper in einer zweiten angehobenen Stellung;

Fig. 4 a, b

weitere Darstellung der Erfindung mit Führungssystem;

Fig. 5 a, b

weitere Ausführungsform der Erfindung mit Anschlagschiene;

Fig. 6 a, b

vergrößerte Darstellung der Ausführungsform nach Fig. 4.

Show it:

Fig. 1

a side view of the stop system according to the invention with base body in the lowered position;

Fig. 2

a side view with body in a first raised position;

Fig. 3

a side view with body in a second raised position;

4 a, b

further representation of the invention with guidance system;

Fig. 5 a, b

further embodiment of the invention with stop rail;

6 a, b

4 enlarged representation of the embodiment according to FIG.

1 is a side view of the invention Shown stop system in which the base body 4 in in the lowered position. You can also use this position as denote the parked position, in which the complete Stop system is located under the surface of the pad. The Edition is in the embodiment with the surfaces of Cross table 3 and the trimming table 2 specified. The surface the cross table 3 is with the reference symbol A as the working plane designated. In this position, workpieces W be placed comfortably without using the stops 5, 6 or to have to lift the base body 4. It can at the same time also a further stop system, not shown here the cross table 3 are operated without doing with the stops 5, 6 to collide.

With the reference numeral 1 is the saw blade or Machining tool called. The edging table 2 is located 1 as shown in the illustration to the left of the Saw blade 1. This is followed by the cross table 3, which is suspended in the edging table 2. Above the edging table 2 and the cross table 3 extends a workpiece W. The Base body 4 is in a lowered position, in which both stops 4, 5 below the working level A, which by the surface of the trimming table 2 and the cross table 3 is specified. The base body 4 has a lower, front stop 5. This lower, front one Stop 5 is for machining or guiding narrow workpieces W suitable. The base body 4 also has one rear, upper stop 6, which for the guidance of wider Workpieces W is suitable.

The lowering device is located below the base body 4 7. With this lowering device 7 you can stop or the base body 4 in at least three height positions or positions. This is for example in the representations shown in FIGS. 1 to 3. The lowering device 7 consists in the embodiment of a Lowering mechanism, which is designed as a toggle lever 12. The Toggle levers 12 can be pivoted via joints 13, thereby creating a Raising or lowering is effected. The actuation of the lowering device 7 takes place via an operating element 11, which for example is designed as a handwheel, and which the toggle lever 12 controls for swiveling in or out. The Lowering device 7 can of course also by a version with a rack or a threaded spindle, a pneumatic or hydraulic cylinder or other suitable technical solutions must be specified.

2 the stop system according to the invention is in one first raised position of the base body 4 shown. The Workpiece W is placed on the rear, upper stop 6 and is guided by it during the cutting process. The lower, front stop 5 is still in a lowered position, also the entire body 4. This is also still below the working level A.

On the lowering device 7 it can be seen that an adjustment the toggle lever 12 was carried out. The is advantageous Execution of the lowering device 7 with toggle lever 12 and joint 13 provided with corresponding locking positions around the base body 4 in the respective desired height setting Keep reaching this setting.

The further reference numerals have already been presented in FIG. 1 have not been explained again.

Fig. 3 shows the stop system according to the invention in one second raised position. Here is the whole Base 4 above the working level A. The workpiece W is in this illustration applied to the lower, front stop 5. It can be seen that one can use this embodiment can insert narrower workpieces for machining, than in the embodiment according to FIG. 2. The setting the corresponding height of the base body 4 takes place again via the lowering device 7, which is also in this upper position can be fixed by a locking position. The basic body 4 is arranged above the working level A. In this position can workpieces, for example, only on the edging table 2 rest on the front stop 5, which is now in this position extends over the edging table 2, exactly run parallel to the cutting.

Figures 4a and 4b show a further representation of the Invention in a side view and in a plan view. additionally to the features already described are in this Representation, in particular in FIG. 4b, guide systems 8 schematically shown, in which the base body (s) 4 are guided with the stops 4, 5 and possibly by own drive systems, not shown, can be created. The adjustability of the base body 4 is due to the Double file symbolically indicated to the right of Figure 4b. The base body 4 is for example sledge-like guided. It is particularly advantageous if the guidance system 8 is powered by a system in which all Drive systems are coupled such that the base body 4th Always drive in parallel and only one common one, not shown Have actuator 11, by means of which all Base body 4 are adjustable.

Of course, it is particularly advantageous if that Drive system is designed to be self-locking. In case that a non-self-locking drive system is provided a clamping system is provided for each stop 4, wherein all clamping systems are in turn coupled such that these also have a common actuator and can always be clamped or released together. That too Clamping system, like the drive system, is in the figures not shown since it is not for understanding the invention is absolutely necessary.

The embodiment of Figures 4a and 4b shows a special one Execution of the base body 4, or the base body 4, such that for the rear upper stop 6 and the lower front stop 5 interchangeable stop elements are provided are. These elements are then on the common body 4 positionable so that you have at least two stop surfaces receives, as already mentioned, in different levels or altitudes are arranged so that they in the respective height position adjustable by means of the lowering device 7 are. The stop elements are when there are signs of wear easily exchangeable. It doesn't have to be the whole Base body 4 to be replaced when a stop is damaged is.

FIGS. 5a and 5b show a further embodiment of the Invention with additional stop rails 10. The stop rail 10 connects at least two base bodies 4, either the front stops 5 or the rear upper stops 6. The stop rail 10 serves to support the parallel cutting of short parts or workpieces, which cannot be applied to two stops at the same time are.

FIGS. 6a and 6b show an enlarged illustration of the Embodiment according to Figure 4 can be seen. About the management system 8, the base body 4 are positioned as far as on the saw blade 1, that the lower front stop 5 on the saw blade 1 is applied. This position can be used, for example, to now workpieces in width between the saw blade 1 and the rear upper stop 6 for example for cutting too to lead. This setting can also be used to for example, slots in thicker workpieces W with a certain depth.

The claims now filed with the application and later are attempts to formulate without prejudice to achieve further protection.

Should there be a closer examination, especially of the relevant prior art, show that one or other feature for the purpose of the invention, although favorable, not but it is of crucial importance, it will of course be now striving for a wording that is such a characteristic, especially in the main claim, no longer has.

The backward relations mentioned in the dependent claims point to the further training of the subject of the main claim by the features of the respective subclaim out. However, these are not considered a waiver of achievement an independent, objective protection for the characteristics to understand the related subclaims.

Features previously only disclosed in the description can in the course of the process as of essential to the invention Significance, for example to differentiate it from the prior art be claimed.

Features that were only disclosed in the description, or also individual features from claims that have a plurality of features can at any time to differentiate from the status of Technology in the first claim to be adopted, and indeed then when such characteristics are related to other characteristics were mentioned or in connection with others Characteristics achieve particularly favorable results.

Claims (11)

Woodworking machine, in particular format saw with a stop system, the workpiece to be processed by a machining tool resting on the support surface (A) of a support table, with a plurality of stops for guiding the workpiece (W), at least one stop (5) coming from the support surface (A) Can be moved away, characterized in that at least two stops (5, 6) are arranged together on a base body (4) of the stop system and the stops (5, 6) by moving the base body (4) into or out of the support surface (A) are movable. Woodworking machine according to claim 1, characterized in that the stops (5, 6) of the base body (4) are arranged on the base body (4) at different distances from the processing tool (1) and in different positions, in particular height or angle positions. Woodworking machine according to one or both of the preceding claims, characterized in that the base body (4) can be rotated or moved longitudinally, in particular can be raised or lowered at right angles to the support surface (A). Woodworking machine according to one or more of the preceding claims, characterized in that a plurality of stops (5, 6) are arranged on at least one base body (4) in such a way that the stop (5) which has the smallest distance from the processing tool is in the lowest Altitude in relation to the working plane (A) and the stop (6) is arranged at a greater distance from the processing tool in a further, higher altitude. Woodworking machine according to one or more of the preceding claims, characterized in that a plurality of base bodies (4) are provided, the spacing of which is adjustable or adjustable with respect to the processing tool and / or at least two base bodies (4) are adjustable in their spacing with respect to the processing tool by means of a common adjustment system are. Woodworking machine according to one or more of the preceding claims, characterized in that a lowering device (7) is provided for lowering at least one base body (4) and / or a plurality of base bodies (4) can be lowered or raised to different heights via a common lowering device (7) and / or at least three altitudes can be set by means of the lowering device (7). Woodworking machine according to one or more of the preceding claims, characterized in that a lowering device allows the base body (4) to be rotated about an axis of rotation, preferably oriented parallel to the support surface (A), and thereby moves the stops of the base body into or out of the support surface (A) , Woodworking machine according to one or more of the preceding claims, characterized in that the lowering device (7) for the base body (4) has a lowering mechanism which is designed as a toggle lever mechanism with toggle levers (12) adjustable via joints (13) with an additional latching position, and which can be operated via an operating element (11) and / or the lowering device (7) is indicated by a toothed rack or a threaded spindle, each with an operating element and / or a pneumatic or hydraulic cylinder forms the lowering device (7). Woodworking machine according to one or more of the preceding claims, characterized in that at least two base bodies (4) are provided which are connected to one another by at least one stop rail (10) and / or two stop rails (10) are provided which have at least two base bodies (4 ) correspond to each other at the lower, front stop (5) and at the upper, rear stop (6). Woodworking machine according to one or more of the preceding claims, characterized by in each case a guide system consisting of guides (8) for each base body (4) and / or a drive system for each base body (4) and / or that the base body (4) in one Guide system (8) is guided and mounted in particular movable like a slide. Woodworking machine according to one or more of the preceding claims, characterized in that the drive systems for the base body (4) are coupled such that they always run in parallel and have only one common actuating element and / or the drive system for the base body (4) as a rack Pinion and the coupling as a continuous axis connecting all pinions and the actuating element is designed as a handwheel and / or a clamping system is provided for each base body (4), preferably all clamping systems being coupled such that they have a common actuating element and always together be clamped or released and / or the drive system for the base body (4) or the stops (5, 6) is designed to be self-locking.

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