DE8528893U1 - Machine for machining workpieces made of wood, plastic and the like, in particular window wood and similar workpieces - Google Patents

Abstract

1. Machine for processing work-pieces (4) made of wood, synthetic material and the like, in particular timber for windows and similar work-pieces, with at least one upright (1), which for the work-piece (4) to be machined comprises two conveying paths (14) lying at an angle with respect to each other, associated with which is at least one longitudinal profiling tool (3) and at least one transverse profiling tool (13), preferably a tenoncutting tool, which are mounted on spindles (2, 18) driven in a rotary manner, whereof the spindle (18) for the vertically adjustable transverse profiling tool (13) is adjustable horizontally by means of a displacement device (24) and with conveying devices (5; 6, 6a, 6b) for the feed movements of the work-pieces (4) along the two conveying paths (14), characterised in that the spindle (18) of the transverse profiling tool (13) with the displacement device (24) is adjustable into a position serving for the longitudinal profiling of the work-piece (4), transversely to the feed direction (36) of the work-pieces (4), during longitudinal profiling.

Description

Weinig - 4 - 27.11.1989

Michael Weinig GmbH G 2013.3/pg Weinigstr. 2/4 27 November 1989

6972 Tauberbischofsheim

Machine for machining workpieces made of wood, plastic and the like, in particular window wood and similar workpieces

The invention relates to a machine for processing workpieces made of wood, plastic and the like, in particular window wood and similar workpieces, according to the preamble of claim 1.

This well-known machine (DE-OS 28 08 276) is used to process window wood. They are first guided on one conveyor track past cross-profiling tools that process the front sides of the window wood, in particular by cutting tenons. The window wood is then transported further on the other conveyor belt, which is at right angles to it, and is guided past length-profiling tools. These are used to process the long sides of the window wood. The cross-profiling tools and the length-profiling tools are each adjustable perpendicular to the associated conveyor track. This makes it possible to bring only the tool into engagement with the window wood that is required to produce the respective profile on the window wood. The other tools are in the disengaged state. Due to the large number

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of tools and the respective adjustment devices, the machine has a complex construction and is therefore expensive to purchase.

The invention is based on the object of designing the generic machine in such a way that it enables machining of the workpieces on the front and long sides with a structurally simple design and a small number of spindles.

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

In the machine according to the invention, the adjustable spindle can be used for both cross-profiling and longitudinal profiling of the workpiece. This means that a spindle and the associated drive can be saved, so that the machine has a simple structure and is inexpensive to purchase. If the spindle is in the position required for cross-profiling, in which the cross-profiling tool sitting on the spindle comes into engagement with the workpiece, the workpiece to be processed is first guided past the spindle for cross-profiling. The workpiece is then guided past the longitudinal profiling tool in its longitudinal direction and processed accordingly. It is particularly common for window timbers to be provided with further longitudinal profiling. To do this, the spindle carrying the cross-profiling tool is now adjusted to the position intended for longitudinal profiling. The window timbers can then be transported in the longitudinal direction by the tool sitting on this spindle.

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be worked on.

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

The invention is explained in more detail using an embodiment shown in the drawings.

Fig.1

Fig. 2 Fig. 3

a plan view of a machine according to the invention,

in plan view and enlarged representation a tenon cutting spindle of the machine according to Fig. 1 in a first position used for tenoning,

the tenoning spindle in a second position for longitudinal profiling of a workpiece.

The machine is used to process workpieces made of wood, plastic and the like. The machine shown in the drawings is used to process window wood and similar workpieces and has at least one stand unit 1 on which at least one longitudinal profiling spindle unit 2 is arranged on one long side. It has an upright spindle (not shown) that carries a longitudinal profiling tool 3 indicated by dot-dash lines. The workpiece 4 to be processed is held with its long side on the longitudinal profiling tool 3 by means of a roller 6.

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transport device 7 and profiled lengthwise.

The stand unit 1 also carries, on the long side opposite the longitudinal profiling spindle unit 2, near the narrow side, a circular saw 9/ which is rotatably driven by a motor 8 and is arranged under a cover hood 10. In the area of the narrow side 11 of the stand unit 1 there is also at least one tenon cutting spindle unit 12 with a tenon cutting tool 13 which can be rotated about a vertical axis and which forms the transverse profiling tool.

Along the narrow side 11 of the stand unit 1 there is a transport track 14 for a work table 5, preferably designed as a roller table. It is provided with at least one clamping device (not shown) in order to be able to clamp the workpiece 4 resting on the roller table 5.

In Fig. 1, the roller table 5 is shown in its initial position, in which the workpiece 4, which in the example is a window piece, is still in front of the circular saw 9 at the beginning of the transport path 14. From this initial position, the roller table 5 with the clamped workpiece 4 is guided in the transport direction 15 past the circular saw 9 and the tenon cutting tool 13. The workpiece 4 is cut to the exact length by the circular saw 9 and, as it is fed further, is machined on its front side with the tenon cutting tool 13. The roller table 5 finally reaches the end position 16 on the transport path 14, indicated by dashed lines in Fig. 1. The last two drive rollers 6a, 6b located in the inlet area of the roller table 5 are raised when the roller table 5 enters, so that the workpiece clamped on it

» _a

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piece 4 can get under the drive rollers. Then, in the end position 16, the clamping of the workpiece 4 on the roller table 5 is released and the workpiece is transported in the feed direction 36 by a drive 17. To do this, the two drive rollers 6a, 6b are lowered until they come to rest on the workpiece 4. It is then guided past the longitudinal profiling spindle unit 2 by the drive rollers β, 6a, 6b and machined on its long side. In the meantime, the roller table moves back from the end position 16 to the starting position shown in solid lines, so that in the meantime another workpiece 4 can be clamped on the roller table.

The upright spindle 18 of the tenon cutting spindle unit 12 can be displaced in the transport direction 15 by the path 19 so far that a tool sitting on the spindle 18 can be used for longitudinal profiling of the workpiece 4.

In the illustration according to Fig. 2, the tenon cutting spindle unit 12 is in a position in which it machines the front side of the workpiece 4 as it is transported past. The unit 12 has a chip extraction hood 20 for the tenon cutting tool 13. It has a relatively large diameter, which can be in the order of magnitude between approximately 280 and 450 mm. The vertical spindle 18 is connected to a drive shaft 22 running parallel to it via a belt or chain drive 21. The spindle 18 and the drive shaft 22 are rotatably mounted on an upper slide 23 of a cross slide 24. The upper slide 23 has a cantilevered support 25 and 26 for the spindle 18 and the drive shaft 22. The lower slide 27 of the cross slide 24 is connected by means of

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a dovetail guide 28 in the vertical direction parallel to the spindle 18 and the drive shaft 22 along a stand 29. An adjusting part 30 is housed in it, with which the lower slide 27 and thus also the upper slide 23 can be moved in the vertical direction. The adjusting part 30 can be a threaded spindle or a lifting cylinder. This makes it possible to set the tenon cutting tool 13 exactly to the height required for machining the workpiece 4. In the position shown in Fig. 2, the tenon cutting tool 13 can be driven at the maximum speed permitted for the corresponding tool diameter.

TJm to secure the upper slide 23 against displacement, it is held in its respective position by a transverse adjustment part 31. This transverse adjustment part 31 can be a threaded spindle or a lifting cylinder. In order to set the exact position of the spindle 18, a fixed stop (not shown) can be provided for the position shown in Fig. 2, against which the upper slide 23 is brought to rest.

If the workpieces 4 are to be provided with a further longitudinal profile, the spindle 18 is moved horizontally in the direction of arrow 32A (Fig. 2) into the position shown in Fig. 3. To do this, the upper slide 23 of the cross slide 24 is moved by means of the adjusting part 31 until it comes to rest against a stop 32. It is horizontally adjustable so that different positions of the upper slide 23 and thus of the spindle 18 can be set. The stop 32 is preferably formed by a stop bolt which can be screwed in to different lengths. Before the horizontal adjustment of the upper slide 23, the drive of the spindle 18 is switched off. So that it can be moved horizontally far enough

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can be, a recess 33 is provided in the adjacent edge of the stand unit 1, which in the exemplary embodiment is approximately semicircular.

Before the horizontal adjustment, the chip extraction hood 20 and the tool 13 are removed and a smaller diameter tool 34 (Fig. 3) for longitudinal profiling of the workpiece 4 and a correspondingly smaller chip extraction hood 35 are mounted. The upper slide 23 can be adjusted easily and precisely using the adjusting part 31. In the adjusted position, the spindle 18 can be used for longitudinal profiling and folding of the workpiece 4. In order to ensure tear-free folding, the spindle 18 can be driven so that the direction of rotation of the tool 34 is the same as the transport direction 36 of the workpiece 4 during longitudinal profiling. In the exemplary embodiment, the workpiece 4 in Fig. 3 is transported from right to left, with the tool 34 rotating clockwise. This synchronization of workpiece 4 and tool 34 ensures that tearing at the end of the workpiece is safely avoided during rebating.

Like the chip extraction hood 10 for the larger diameter tool 13, the smaller chip extraction hood 35 for the smaller diameter tool 34 also has a contact which ensures that when the chip extraction hood is put on, the spindle 18 with the tool 34 can only be driven at the maximum permitted speed. This contact can be formed in both chip extraction hoods 10, 35 by a cam which, when put on, interacts with a corresponding counter-contact so that the respective permitted speed for the work is automatically set.

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e · ■ · · etc·

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The workpieces 4 machined on the front sides by the circular saw 9 and the cross-profiling tool 13 are guided in their longitudinal direction by means of the drive rollers 6, 6a, 6b past the tool 34 and, if necessary, the longitudinal profiling tool 3, whereby it is profiled on its corresponding longitudinal side. The spindle 18 with the tool 34 can be controlled in such a way that the tool 34 is in engagement with the workpiece 4 over the entire length of it. However, the control can also be selected in such a way that the tool 34 only comes into engagement with the workpiece 4 at the end of the run.

Even in the position according to Fig. 3, the height position of the spindle 18 can be adjusted using the adjusting part 30. In order to avoid damage to the tool 34 during this height adjustment, the spindle 18 is first moved with the upper slide 23 in the direction of the arrow 37 against a stop (not shown) before the height adjustment in order to ensure that the tool 34 disengages from the stop area 38. Only then is the lower slide 27 and thus the spindle 18 adjusted in height using the adjusting part 30. The tool 34 is then moved against the stop 32 again using the upper slide 23 in the opposite direction of displacement 37. The workpiece 4 can now be guided past the tools 34 and 3.

Claims (1)

Protection claims 1. Machine for machining workpieces made of wood, plastic and the like, in particular window wood and similar workpieces, with at least one stand which has two transport tracks for the workpiece to be machined which are at an angle to one another and to which at least one length profiling tool and at least one cross profiling tool, preferably a tenon cutting tool, are assigned, which are mounted on rotatably driven spindles, of which the spindle for the cross profiling tool is adjustable, and with transport devices for transporting the workpieces along the length of the two transport tracks, characterized in that the spindle (18) of the transverse profiling tool (13) can be adjusted into a position serving for longitudinal profiling of the workpiece (4) transversely to the feed direction (36) of the workpieces (4) during longitudinal profiling. 2. Machine according to claim 1, characterized in that the spindle (18) of the transverse profiling tool (13) is adjustable by means of a displacement device (24). 3« Machine according to claim 2, characterized in that the displacement device (24) is a cross slide, the two slides · t ·
· ft · β · 9 &igr; ■ ■ ■ ff · · · Weinig - 2 - 27.11.1989 (23, 27) are horizontally and vertically movable. 4. Machine according to claim 3, characterized in that the spindle (18) of the cross-profiling tool (13) is mounted on the horizontally displaceable slide (23) of the cross slide (24) is. 5. Machine according to claim 3 or 4, \ characterized in that on the horizontally displaceable A rotary drive (21, 22) for the spindle (18) of the cross-profiling tool (13) is mounted on the movable carriage (23). 6. Machine according to one of claims 1 to 5, characterized in that a stop (32) is located in the adjustment path (19) of the spindle (18), which determines the end position of the spindle in the adjusted position. 7. Machine according to claim 6, characterized in that the stop (32) is adjustable in the adjustment direction of the spindle (18). 8. Machine according to one of claims 1 to 7, characterized in that the transverse profiling tool (13) sitting on the spindle (18) can be exchanged for a length profiling tool (34). 9. Machine according to one of claims 1 to 8, characterized in that the stand (1) is provided with a recess (33) in the area of the adjusted spindle (18). •&igr; · t • I III Weinig - 3 - 27.11.IS89 10. Machine according to one of claims 1 to 9/ characterized in that the spindle (18) of the cross-profiling tool (13) is height-adjustable. 11. Machine according to one of claims 1 to 10, characterized in that the transport path (14) in the area of the cross-profiling tool (13) is provided for a work table (5) designed as a roller table.