DE3307809A1 - Wood-working machine - Google Patents

Abstract

The wood-working machine is used to work the ends of wooden workpieces and has a working tool movable transversely to the conveying path of the wooden workpiece. During the end working, the wooden workpiece is clamped and the working tool is moved transversely to the wooden workpiece. The wooden workpiece is conveyed in its longitudinal direction through the machine. Since during the end working the wooden workpiece is not moved, very high working accuracies can be achieved. The wooden workpiece is positioned by means of stops adjustable in the conveying direction of the wooden workpiece.

Description

Patent Attorney 11 I.

Menzelstrasse 40, 7000 Stuttgart 1 - 5 -

Michael Weinig GmbH & Co. A 57 591 / fro

Limited partnership

Weinigstrasse 2/4 *. March 1983

6972 Tauberbischofsheim

Woodworking machine

The invention relates to a woodworking machine according to the preamble of claim 1.

Such woodworking machines are used to wood, like To edit boards, beams and the like on the front sides, for example to produce window frames. In the known woodworking machine, there is one on both sides of the transport path for the wood to be processed Processing tool arranged so that the wood processed at the same time as it passes through on both ends can be. During transport, the wood is held in place by means of the clamping device in order to prevent the Wood during processing and thus avoid processing inaccuracies. This machine needed because of the machining tools provided on both sides of the transport path take up a considerable amount of space and are out of this Basically expensive to buy. When the wood passes through the machine, the distance between each other opposite processing tools must be matched exactly to the length of the wood to be processed, so it can be processed at both ends at the same time. It is particularly common in window construction usual, only small series of window frames, frame by frame to manufacture. As a result, the distance between the tools has to be changed very often. This is also then

necessary if the frame parts are of different lengths. The adjustment of the processing tools requires considerable expenditure of time. In particular, the machine cannot be used during the changeover. These known woodworking machine has very long non-productive times, which are not infrequently at least half of the total operating time of the machine. It is therefore not possible to work economically.

The invention is based on the object of designing such a woodworking machine so that it only Little installation space required and within a very short time to different lengths of the wood to be processed can be adjusted.

This object is achieved according to the invention with the characterizing features of claim 1.

In the woodworking machine according to the invention, the wood is not on the transport path during its processing moved, but held by means of the clamping device. This prevents the wood slips during machining, so that a very high machining accuracy is achieved. Since the processing tool can be moved across the transport path of the wood, the wood can be transported in its longitudinal direction to the processing point. Then the processing tool is transverse to the transport path or to the longitudinal axis of the Moved wood and worked on one end. On the transverse to the direction of movement of the machining tool Transport track can then continue to transport the wood until the other, not yet processed The end of the work area of the tool. This can then in turn transversely to the transport path of the wood moved so that this end is also machined.

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As a result of this training, only a single machining tool or only one tool unit is required, with the two end faces of the wood are processed one after the other. This reduces the machine effort kept small, which has a beneficial effect on the manufacturing costs of the machine. Also needed the woodworking machine therefore only a relatively small installation space. The woodworking according to the invention ο machine is characterized above all by the fact that with it different within a very short time long pieces of wood can be worked on precisely. Since during the processing process no longer the wood, but the processing tool is moved, the positional positioning of the wood can be provided by a stop which can be adjusted very easily and, above all, within a very short time. The inventive The machine is ideal for processing wood that is of different lengths one after the other Machine are fed.

Further features of the invention emerge from the further claims, the description and the drawings.

The invention is explained in more detail with reference to two exemplary embodiments shown in the drawings. It shows

Fig. 1 is a side view of an inventive

Woodworking machine,

FIG. 2 is a plan view of the woodworking machine according to FIG. 1,

3 shows a plan view of a second embodiment of a woodworking machine according to the invention.

The woodworking machine is used to process the ends of wood, such as boards, beams and the like. With you can, for example, frame parts, be processed,

wings or the like.

which are put together to form window frames /. The frame parts must be provided with slots and tenons at their ends, with which adjacent frame parts are plugged into one another will. In addition, all other end machining can also be carried out. The woodworking machine has a machine frame 1, which has two frame parts 2 and 3 that are spaced apart and parallel to one another. On the frame part 3, two guides 4 and 5, lying parallel one above the other, for a working slide 6 are provided. The guides 4, 5 are preferably designed as round guides that are formed by tubes or rods could be. The working slide 6 has two holders 7, 8, with which it can be displaced on the guides 4, 5 is stored. The working slide 6 is arranged on the side of the frame part 3 facing the frame part 2 and thus lies between the two frame parts. He wears at least one standing, preferably vertical spindle 9 on which at least one machining tool 10 is seated. With this editing tool will be machined the end faces of the wood. The spindle 9 can be designed as a lifting spindle and several tools wear. As a result, by raising or lowering the spindle 9, different machining tools 10 can be brought to the machining point to be brought. To drive the spindle 9, a drive motor 11 is provided, which is also attached to the working slide 6. In the exemplary embodiment is Spindle 9 is connected to the drive motor via a belt drive 12 provided at the lower end of the motor. But it is any other suitable drive is also possible. The working slide 6 can in a manner not shown by means of a chain drive, pneumatic or hydraulic cylinder, rack and pinion drive or the like can be driven.

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A cross-cut saw unit 13 is also mounted on the work slide 6 (FIG. 2), which is driven by means of a motor 14 arranged on the work slide. With it, a circular saw blade 15 is rotatably driven, ^{which can be inclined about a} horizontal axis lying in the direction of movement 16 of the working steel center 6.

“With the circular saw blade 15, the

Ends of the wood 17 after processing by the tool 10 cut exactly to the desired length. So that the cross-cut saw unit 13 can be set exactly, it is perpendicular to the direction of movement 16 of the work carriage 6 adjustable. Preferably, the cross-cut saw unit 13 is attached to a cross slide 18, which in turn the working slide 6 is provided.

At the end facing away from the spindle 9, a transfer unit 19 is arranged on the working slide 6, with which transports the workpiece after machining one end in the area between the two frame parts 2 and 3 can be. This transfer unit 19 is expediently designed as a driven roller conveyor, which is preferably driven separately.

An infeed table 2 0 is provided on the frame part 3, the top of which is at the same level as a feed path 21 for the wood 17. The feed path 21 runs vertically to the direction of movement 16 of the work carriage 6 (Fig. 2). The feed track 21 can be carried by a conveyor belt Conveyor chains or similar transport devices are formed with which the wood to be processed 17 on the infeed table 20 is pushed. In the area above the infeed table 20 there is a feed unit 22 which is mounted on guides 23 adjustable in height. It has a drive motor 24 with which the feed rollers 25 rotate

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bar can be driven. They sit on shafts 26 (FIG. 2) which run in the direction of movement 16 of the work carriage 6. The feed rollers 25 are located above the infeed table 20 / so that the wood 17 is moved under them on the infeed table. the Feed rollers 25 determine a transport path 27 for the wood 17 in the woodworking machine.

A clamping device 28 and counter profiles 29 are located on both sides of the transport path 27 on the infeed! Machining against the counter profile 29 is clamped. As FIG. 2 shows, the counter profiles 29 of the clamping device 28 are opposite. The counter profiles 29 serve to prevent breaking out or tearing out during processing by means of the tools 10. For this purpose, the counter profile 29 rests against the areas of the wood 17 which tend to break out or tear out during processing. '^;

Longitudinal stops are provided so that the wood 17 can be neatly guided in the longitudinal direction during transport in the transport path 27 32, provided on the infeed table 20, which the transport path 27 laterally over part of its length limit.

An outlet table 34 is attached to the frame part 2 and is at the same height as the inlet table 20. in the Area above the discharge table 34 is a

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further feed unit 35, whose feed rollers 36 on at the same height as the feed rollers 25 of the other feed unit 22. The feed unit 35 is also Height-adjustable along guides 37, which are attached to the machine frame 1 in an upright position. Both feed units 22, 35 are preferably height-adjustable together using a handwheel 38. Of course, the height adjustment can can also be carried out electrically and / or electronically with appropriate control devices.

Counter profiles 39 are also on the discharge table 34 and a jig (not shown) arranged. The jig is on top of the jig 28 opposite side of the transport path 27 is provided and designed so that with the counter profiles 39 the wood 17 is tensioned against a stop 33.

For end machining, the wood 17 is fed in the direction 40 on the feed path 21 of the woodworking machine. It is transported in its longitudinal direction, as shown in FIG. 2. As soon as the wood 17 is in the When it arrives in the area of the feed unit 22, it is picked up by the feed rollers 25 and in the transport path 27 wextertransportiert. "The working slide 6 is provided with a stop 41, the one shown in FIG The starting position of the work carriage is in the transport path of the timber 17. This is done by the feed rollers 25 pushed against this stop 41. As soon as the wood 17 hits the stop 41, the drive motor 24 the feed unit 22 is switched off so that the wood 17 is no longer transported by wexters. At the stop 41 can a switch can be provided for this purpose, which is actuated when the wood 17 runs up, and thereby the drive motor 24 turns off. The stop 41 is preferably in trans-

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* in which the cross-cutting unit 13 is only a minimal part separates from the wood.

Port direction of the wood 17 adjustable on the work carriage 6 is provided so that the end face of the wood 17 to be machined is brought into the desired precise positioning can be ^ if the adjustment of the stop 41 can also be carried out electrically or electronically.

After the feed unit 22 has been switched off, the counter profile 29 corresponding to the machining tool 10 becomes brought laterally to the wood 17 to the plant. Then will the clamping device 28 actuated and the piston rod 30 extended, whereby.die pressure plate 31 on the Counter profile 29 opposite side against the wood 17 is driven. This will put the wood between the pressure plate 31 and the counter profile 29 clamped. In addition, the feed unit 22 is set so that the feed rollers 25 press firmly onto the wood 17. As a result, the wood is firmly clamped on all sides, so that during the Processing of the wooden face prevents it from moving or slipping. The clamping operations described can also be triggered electrically or electronically. ··

After the wood 17 is clamped in the manner described is, the working slide 6 is moved in the direction 16. If there are several tools 10 on top of one another on the spindle 9 are arranged, the height of the spindle is adjusted in such a way before the working slide is advanced, that the desired machining tool arrives at the machining point during the subsequent feed. At the feed the desired profile is now attached to the end face of the clamped wood 17. That firmly against the side the wood 17 pressed counter profile 29 reliably prevents the wood 17 from tearing out laterally. At the further advance of the working slide 6 arrives

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Finally, the circular saw blade 15 to the face of the wood 17 and lengthen the processed wood to the desired Turn off. The working carriage 6 is advanced until the transfer unit 19 is below the timber 17. Then the drive of the working slide 6 is switched off. In this other end position of the work slide is located the tool 10 at the in Fig. 2 with dash-dotted lines Lines indicated position. The transfer unit 19 forms now the connection between the transport tracks 27 on the infeed table 20 and the outfeed table 34.

In order to keep the time for the work cycle as short as possible, the feed speed of the work slide 6 is preferably matched to the various machining operations. Is not a tool with the wood 17 in Intervention, is moved with high feed rate. When profiling with the machining tool 10 and when cutting to length by means of the cross-cut saw unit 13, a relatively low feed speed of the work slide 6 is set.

When the working slide 6 is in its other end position, the clamping device 28 is released and the drive motor 24 of the feed unit 22 is switched on again. The wood 17 can now continue to the exit table 34 can be transported. The stop 41 is with the advance of the work carriage 6 from the front side of the wood 17 has been removed.

At the same time, the drive motor 42 of the feed unit 35 is switched on and the feed rollers 36 are driven. Since the transfer unit 19 preferably consists of driven rollers 43, the (not shown) Drive of the transfer unit switched on. That

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Wood 17 machined on one end face becomes reliable as a result transported from the infeed table 20 via the rollers 43 of the transfer unit 19 to the outfeed table 34. and there captured by the feed rollers 36. The usage Drivable rollers 43 has the advantage that wood in the area between the two feed units 22 and 35 can be transported whose length is shorter than the distance between the two feed units. To the impeccable To guide the wood, the transfer unit 19 is provided with a longitudinal stop 49, which is in the end position of the work slide 6 with the stops 32 and is in alignment.

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With the feed rollers 36, the wood 17 is pushed against a further stop 44, which is in the transport direction of the wood 17 is adjustable. For this purpose, the stop 44 is provided on a carrier 45 which runs along a guide track 46 can be adjusted. The stop 44 is preferably positioned electronically. The guideway 46 is adapted to the maximum length of the wood to be processed, so that even very long wood can be handled properly Ends can be edited. After the wood 17 has come up against the stop 44, as is shown by the feed unit 22, the drive of the feed unit 35 is switched off and with the clamping device (not shown) the counter profile 39 assigned to the machining tool 10 is pushed laterally against the wood 17. That As a result, wood is clamped between the counter profile 39 and the counter stop 33. aside from that the feed unit 35 is set so that the feed rollers 36 press firmly on the wood 17, the is thus firmly clamped on all sides. Subsequently, the working slide 6 is in its starting position shown in FIG. 2 pulled back. The first step is to use the circular saw blade 15, which is in the desired position or by means of the cross slide 18 in the desired Position is traversed, the still unprocessed face is cut to length. As the feed continues, the loading

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processing tool 10 machined this end face. at several tools on the spindle 9, the corresponding tool is of course preselected beforehand.

When the working carriage 6 returns to its original position, becomes the jig on the outfeed table

34 released, the stop 44 out of the range of motion of the Wood 17 driven and the drive 42 of the feed unit

35 switched on. The wood that has now been finished on both ends can then be transported to a further processing unit.

Simultaneously with the further transport of the finished wood, the next wood is placed on the infeed table 20 pushed, which is then processed in the manner described in the woodworking machine on its two end faces will. The feed track 21 can preferably be lowered, so that the next wood is stopped at the edge of the infeed table 20 as long as the previous one is still in the machine Wood is processed. By raising the feed track 21 at the level of the infeed table 20, this can then next wood can be transported into the machine in the manner described.

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The machine can be operated both manually and fully electronically with a safety sequence control with programs for Tool preselection, automatic counter profile change, positioning of the cross-cut saw unit and positioning of the Length stop can be controlled. The woodworking machine can be used as a single machine or as a chain within a production line for the complete end processing of board-shaped, bar-shaped or otherwise shaped Wooden workpieces are used.

A particular advantage of the woodworking machine described is that the wood 17 to be processed is guided through the machine without angle transfers at the inlet and outlet. This enables very high machining accuracies be set, which in the known machines, in which the transport direction of the wood is changed, occur again and again. Since the wood 17 during processing

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tion is firmly clamped on all sides and rests, is with There is no certainty that the workpiece will slip unintentionally. Both ends of the wood 17 are with only one processed single tool or a single tool set on the spindle 9. Because the editing tools are expensive are, the use of only a single tool or tool set is a significant advantage of the woodworking machine Because the two front sides of the wood are not processed at the same time, but one after the other different profiles can be provided on the end faces of one and the same wood. The one for editing required tools 1 0.13 are advantageous completely covered by protective cladding, which ensures a high level of accident protection. They can also Protective coverings take on suction functions so that the amount of dirt accumulated during processing is kept to a minimum can. Due to the small footprint of the machine, which is achieved by using only a single tool or Tool set is achieved, and as a result of the straight workpiece passage is a very compact and therefore economical and effective complete encapsulation of the machine to reduce the risk of accidents and noise emission possible. The machine also enables continuous loading of wood of different lengths that are with different end profiles can be processed without additional loss of time in the work cycle. The attacks 41 and 44 can be set fully electronically and automatically to the respective log length, which can be done quickly and easily. As the wood 17 is firmly clamped and resting during processing, So no movement is performed relative to the machine frame 1, the profiling takes place in synchronism at both ends of the Wood 17, whereby a very long service life is achieved.

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In the embodiment shown in FIG. 3, the working slide 6a is provided with a further cross-cut saw unit 47, which can be designed in the same way as the cross-cut saw unit 13. The spindle 9 with the machining tool or tools 10 lies between the two cross-cut saw units 13 and 47. Otherwise, this is a woodworking machine the same design as the embodiment according to Figures 1 and 2. As a result of the two cross-cut saw units 13 and 47, the respective end face of the timber 17 is always cut to length first during the forward and reverse movement of the work carriage 6a and then profiled with the respective machining tool 10.

The machining tools 10 are profile tools that are used for Example tenon cutters are slotted tools. But not only slots and Pins are attached, but also any other desired profile, for which on the spindle 9 corresponding Profile tools are mounted.

In both embodiments, further spindles with machining tools can be arranged on the working slide 6, 6a be. It is also possible to extend the frame 1 and to include at least one further working slide appropriate spindles and tools to be provided. Finally, on both frame parts 2 and 3 at least one work slide with spindles and tools can be arranged.

So that bevel cuts can be made on the wood 17, the jigs 28 on the inlet and Outlet table 20 and 34 can be adjusted so that the wood is at an angle other than 90 ° to the direction of movement 16 of the work carriage 6 is located.

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Claims (16)

Patent attorney '.'. '. '..''- DipL-lng. W. Jackisch: ": ._ / .- -: 3307809 Menzelstrasse 40, 7000 Stuttgart 1
Michael Weinig GmbH & Co. _ _? 591 / f _ro Limited Partnership - 4th Man 1983 Weinigstrasse 2/4 Tauberbischofsheim Expectations Π.] Woodworking machine for processing the ends of Wooden work pieces, such as boards, beams and the like, preferably from window frames, with at least one Machining tool which is arranged in the area of the transport path of the workpiece to be machined, that can be transported with at least one feed unit on a transport path and for that at least a clamping device is provided, characterized in that that the processing tool (10, 15) transversely to the transport path the wooden workpiece (17) is movable so that the clamping device (28) is fixed to the machine, and that the transport path (27) transversely to the direction of movement (16) of the machining tool (10, 15) the machine runs. 2. Machine according to claim 1, characterized in that the machining tool (10, 15) on at least one Slide (6) is mounted, which can be moved transversely to the transport path (27). 3. Machine according to claim 1 or 2, characterized in that the machining tool (15) on the slide (6) can be adjusted parallel to the transport path (27), preferably by means of a transverse slide (18). _ ο - 4. Machine according to one of! Claims 1 to 3, the having at least one cross-cut saw unit and at least one profile tool for end machining, thereby characterized in that the cross-cut saw unit (13, 47) and the profile tool (10) are mounted on the slide (6, 6a) are. 5. Machine according to one of claims 1 to 4, characterized in that that the carriage (6) has at least one stop (41) for the wooden workpiece (17) to be machined which is preferably adjustable in the transport direction (40) of the wooden workpiece. 6. Machine according to one of claims 1 to 5, characterized in that that it has two clamping devices (28) which are fixed to the frame and on both sides of the path of movement of the slide (6). 7. Machine according to one of claims 1 to 6, characterized in that that the clamping devices (28) arranged on an inlet and an outlet table (2.0 and 34) are, between which the carriage (6) can be moved. 8. Machine according to one of claims 1 to 7, characterized in that that for clamping the wooden workpiece <.17) at least one counter profile part (29, 39) and an opposite stop {31, 33) is provided. 9. Machine according to one of claims 1 to 8, characterized in that that it has two feed units (22, 35) for the wooden workpiece (17) on both sides the path of movement of the transport carriage (6) in Transport direction (40) of the wooden workpiece (17) are arranged one behind the other. 10. Machine according to claim 9, characterized in that the wood workpiece with the feed units (22, 35) (17) can be clamped transversely to the clamping device (28). 11. Machine according to claim 9 or 10, characterized in that that at least one, preferably both, feed units (22, 35) are adjustable in height. 12. Machine according to one of claims 9 to 11, characterized in that that the feed units (22, 35) with feed rollers located in the clamping area of the machine (25, 36) are provided. 13. Machine according to one of claims 1 to 12, characterized in that that the transport path (27) for the wooden workpiece (17) in the area between the two feed units (22, 35) is interrupted, and that in this area for transporting the wooden workpiece at least a transfer unit (19) which connects the conveyor track sections to one another is movable. 14. Machine according to claim 13, characterized in that the transfer unit (19) is provided on the slide (6), 15. Machine according to claim 13 or 14, characterized in that that the transfer unit (19) has a drivable conveyor, preferably several conveyor rollers (43) having. 16. Machine according to one of claims 1 to 15, characterized in that that they have a second, preferably movable, into the transport path of the wooden workpiece (17) has adjustable stop (44) in the transport direction (40) of the wooden workpiece.