CN1732065B - Device and method for machining workpieces - Google Patents

Abstract

A device for machining a strip-shaped or plate-shaped metal workpiece, especially for removing the oxide layer of the cut surfaces and/or edges of the workpiece, comprising at least one rotating conveyor device provided with at least one brush. The conveyor device conveys the at least one brush past the region of the workpiece which is to be machined in an approximately linear manner.

Description

Device and method for machining a workpiece

technical field

The invention relates to a device and a method for machining a strip-shaped or plate-shaped metal workpiece, in particular for removing an oxide layer from cut surfaces and/or cut edges of the workpiece.

Background technique

A device and a method of this type are known from DE 197 39 895 C2.

During laser cutting of metal workpieces, an oxide layer or scale forms on the cut edge or cut surface. The disadvantage of the oxide layer is that the lacquer or galvanizing applied thereto falls off again relatively quickly. Metal workpieces are therefore ground before painting and galvanizing.

Grinding the cut surfaces or cutting edges, ie removing their oxide layer, a process also known as descaling, has the disadvantage that, since the cutting edges are sharpened in this way, there is a higher risk of injury. The cutting edges must therefore be blunted again under certain conditions after grinding.

This patent points out a kind of method and device for removing rust on metal cutting material. In order to remove the oxide layer on the cutting surface, the metal cutting material is passed between the rotating cutting tools arranged in pairs. Although the oxide layer on the outer cut surface is cleaned in this way, it is not possible to separate the oxide layer from the inner cut surface, for example from a groove or similar through-hole in the workpiece. In addition, if the surface or smooth surface of the workpiece is also to be cleaned or washed, then another machining device must be provided for the workpiece.

Disadvantages of the device described in this patent are also the transport, as well as the expensive construction and the large footprint. In addition to this, the wear of the machining tool is not consistent, because usually the reason is: the metal cutting material to be derusted is always pushed in at the same place, that is to say at the same position, so that a part of the machining tool is never in contact with the metal The cutting material is in contact, while another part of the machining tool is always subject to constant wear.

Devices for deburring and smoothing are also known from the prior art. Both rollers and disc-shaped, rotating brushing tools are used here. In known devices, the workpieces to be processed are placed on a horizontal working surface or on a conveyor belt and are carried out manually or automatically under rollers or rotating cleaning tools. Also in the devices described in the patents belonging to this category there is the disadvantage that generally the workpieces are always pushed in at the same position, so that the wear of the rollers or cleaning tools is inconsistent. The working width of such machines is for example from 1 to 2, but in practice most are equipped with smaller metal cutting parts. This has the result that a roller, for example 2 m long, only acts on the first 50 cm of the metal cutting part and thus wears out in this region. Once this part of the roller wears too much, the roller must be replaced, although 3/4 of the roller surface is still good and usable. The replacement is inevitable because the first 50 cm of the drum can no longer be ground when loading a large workpiece. Poor grinding results result from the uneven wear of the rollers and the resulting differential pressure on the workpiece. This also has a negative effect on the deburring or grinding quality: the brush or roller cannot continuously adjust its penetration depth. The conveyor belt on which the workpieces are placed prevents an in itself reasonably deep penetration of the bristles, since the workpieces should not be damaged.

A further disadvantage of these known deburring and grinding machines is that the workpiece has to be fed a second time in order to be able to machine both main surfaces of the workpiece. Another strong point of said machines is their high drive power, large footprint and high acquisition and maintenance costs. The dimensions of the base of the machine should be such that even the largest workpieces can be pushed flat and entered into the process. This leads to the fact that at least one such footprint is required for the base surface if the machine is intended for processing metal workpieces of 2×2 m in size. There must also be places for setting and aligning the metal workpiece before pushing it into the machine and for removing it.

A further disadvantage of the known grinding machines is that they are either suitable for cleaning or fine grinding the main surfaces of workpieces, or, as the devices of this class belong, for descaling the surrounding edges of workpieces. Apart from this, there has previously been no solution for derusting voids, holes, perforations and similar structures located inside, regardless of manual processing.

Expensive and labor-intensive wet grinding methods are also known from the prior art.

Contents of the invention

The task of the present invention is to overcome the above-mentioned shortcomings in the prior art, in particular to design a fast and simple machine for processing strip-shaped and plate-shaped metal workpieces, especially for removing the oxide layer on the cutting face and/or cutting edge. and economical devices and methods.

This object is solved according to the invention in that a traveling conveyor with at least one brush is provided, wherein the conveyor passes the at least one brush over the workpiece region to be processed at least approximately in a straight line.

In a device according to the invention for machining strip-shaped or plate-shaped metal workpieces having first and second main faces, as well as cutting faces and cutting edges, said device performs said cutting of said workpieces. At least one of deoxidization, grinding and descaling of cut surfaces or edges, wherein the device includes at least first, second, third, and fourth transport devices, and the first, second Each of the , third, and fourth transport means has at least one brush, and the workpiece is transverse to at least the at least one brush of each of the first, second, third, and fourth transport means The movement is carried out in the direction of circulation, two transport devices running in reverse circulation are positioned on one main face of the workpiece, while the other two transport devices running in reverse cycle are positioned on the other main face of the workpiece.

In another device according to the invention for machining a strip-shaped or plate-shaped metal workpiece having a first and a second main face, as well as a cutting face and a cutting edge, said device performs cutting of the workpiece cutting face and cutting At least one of descaling, grinding and descaling of edges, the device comprising at least two transport devices between which the workpiece can be rotated obliquely or laterally relative to the transport devices The direction is guided such that each transport device processes the cut edge of the workpiece by means of an associated brush; wherein the transport devices are arranged slightly offset from each other, preferably by 10 to 100 mm, in the direction of passage of the workpiece.

Since the arrangement of the brushes on an endless transport device is not held rigidly in one position, but rather runs over the entire length of the feed workpiece to be processed, uniform wear of at least one brush is ensured. The workpiece can be processed or pulled across in a simple manner inclined, preferably transversely, perpendicular to the circulation direction of the brush, so that the workpiece is processed uniformly by the brush.

Since the brush runs in a straight line on the workpiece to be machined, as the inventor has surprisingly defined, it is ensured that the brush penetrates into all through-holes or holes of the workpiece and thus removes all cutting surfaces and Oxide layer on cut edge. The brush thus moves obliquely or transversely to the feed direction perpendicular to the workpiece and penetrates each recess like a brush drawn along on a metal workpiece.

The device according to the invention is advantageously used both to process the surface, that is to say the main surface, of a strip-shaped or plate-shaped metal workpiece, and to descale the cut surfaces and cut edges. However, it is impossible to simultaneously derust and clean the cut surface and the cut edge with previously known devices.

Advantageously, two transport devices are provided, between which the workpieces can pass obliquely or transversely to the direction of rotation of the cycle, so that each transport device with corresponding brushes is opposite to the two main faces of the workpiece. One of the faces is processed.

Both main surfaces of the workpiece are thus machined in a particularly advantageous manner in one working process. In addition, the cutting edge and the cutting surface are machined from both sides, so that rust removal is particularly thorough. The use of two transport devices enables fast and rational processing of workpieces.

Furthermore, according to the invention it is provided that the transport device has a plurality of brushes arranged at a distance from one another.

As the inventors have surprisingly provided, the machining of the main surface of the workpiece as well as of the cut surfaces and cut edges is particularly sophisticated and reliable if the transport device has a plurality of brushes arranged at a distance from one another. Due to the spacing between the brushes, it is avoided that the bristles of the brushes located in front in the direction of rotation fold down the bristles of the rear brushes before they reach the workpiece. This is exactly the case with brushes known in the prior art (eg for rotating "disk brushes"). If the rear bristles have been folded down due to the front bristles, then the rear bristles cannot penetrate far enough into cavities and the like, and the cleaning of these cavities is not sufficient.

The spacing between the brushes ensures that the brushes always touch the workpiece without bending or penetrate advantageously into recesses or holes.

In a refinement of the invention it can be provided that the bristles are designed to be undulating and/or curved.

Due to the wave-shaped design of the bristles of the brush, it is ensured that the bristles are not arranged evenly in rows, but irregularly, so that the bristles are on the one hand less affected by the bristles located in front in the direction of rotation and on the other hand , it has surprisingly been shown in experiments that particularly high-quality cleaning can be achieved.

Advantageous configurations and improvements of the present invention can be seen in the following exemplary embodiments schematically described in the rest of the application with reference to the drawings.

A particularly advantageous V-belt for use in the device according to the invention is known from the following description.

Description of drawings

The accompanying drawings show:

Figure 1: a perspective view of the device according to the invention with two transport devices;

Fig. 2: a front view of the device according to the invention with two transport devices shown in Fig. 1;

Fig. 3: a top view of the device according to the invention in the direction of arrow III in Fig. 2;

Fig. 4: according to a side view of the device of the present invention according to arrow direction IV among Fig. 2;

Figure 5: a perspective view of a device according to the invention with a housing;

FIG. 6 : a schematic diagram of a workpiece to be processed and a substantially vertically arranged transport device with a plurality of brushes each arranged on a support;

Figure 7: Perspective view of a length of V-belt with enclosed bristles of a stand;

Fig. 8: the view of a section of V-belt according to Fig. 7 arrow direction VIII;

Fig. 9: a top view of a section of V-belt according to Fig. 8 arrow direction IX;

Figures 10a to 10d: Various structural types of V-belts;

Figure 11: Perspective view of a section of V-belt having a support configuration consisting of floating parts;

Figure 12: Perspective view of the various parts of the support, where the parts can be inserted by means of a groove/mortise joint;

Figure 13: Side view of a portion of a holder with inclined bristles;

Figure 14: A side view of a part with inclined bristles and a stable support for the bristles;

Figure 15: A perspective view of a portion of a holder with a bundle of bristles and a stable overcoat;

Fig. 16: A perspective view of a section of a V-belt different from that shown in Fig. 7, wherein there is a floating part provided with inclined bristles;

Figure 17: Part of a transport device with a resistance element designed as a steel roller behind a diverted position in the direction of rotation of the transport device;

FIG. 18 : Side view of the device according to the invention with four substantially horizontally arranged transport devices.

Detailed ways

FIG. 1 shows an apparatus for machining a strip-shaped or plate-shaped metal workpiece 1 (shown by way of example in FIGS. 3 and 6 ). The device according to the invention is particularly suitable for descaling the cut surface 1 b and/or the cut edge 1 a of the workpiece 1 . Both the surrounding cut surface 1b and the cutting edge 1a of the workpiece 1 can be descaled, and openings, holes or similar structures in the workpiece 1 can be descaled. Tests have shown that small holes generally do not need to be descaled, since these holes are usually used as screw holes and therefore do not necessarily have to be painted or galvanized.

The oxide layer on the two main faces 1c or the surface of the workpiece 1 can be cleaned advantageously by means of the device according to the invention, so that painting or galvanizing can be made reliable and durable, without having to worry about the thin layer being applied. will peel off.

As can be seen from FIGS. 1 and 2 , the device according to the invention has two transport devices 2 which are each provided with a brush 3 . The transport device 2 passes the brush 3 at least approximately in a straight line over the area of the workpiece 1 to be processed. The workpiece 1 to be processed is passed or pulled between the two transport devices 2 transversely perpendicular to the direction of rotation of the transport devices 2 . For this purpose the device according to the invention has a guide channel 4 which can be seen in FIG. 3 .

Depending on the thickness of the workpiece 1 to be processed, the guide channel 4 can be adapted by means of an adjustment device 5 . In order to allow the workpiece 1 to pass through smoothly, the device according to the invention has an insertion plate 6 via which the workpiece 1 can be inserted into the guide channel 4 . After the guide channel 4 has passed, or after the two transport devices 2 have passed, the workpiece 1 is delivered to a parking station 7 . A push plate or the next workpiece 1 can be provided for pushing the workpiece 1 past.

The parking table 7 has a vertically arranged stopper, which ensures that the workpiece can fall or turn over in a predetermined direction after being sent out from the guide channel 4 (see FIG. 4 ).

The guide channel 4 is also designed to guide the brush 3 so that it can be moved in a defined manner along the workpiece 1 without deviating.

In addition to the adjustment device 5, the device according to the invention also has a separate infeed device 8, by means of which the penetration depth of the brush 3 can be varied. This is advantageous in particular for correcting wear of the brushes 3 or for increasing the pressure. In the variant shown in this exemplary embodiment with two transport devices 2 , the transport devices are moved relative to each other or adjusted to correct the wear of the brushes 3 . In a particularly simple design of the solution according to the invention with only one transport device 2, the transport device is moved or adjusted to a fixed wall of the guide channel 4, which is used as a rear seat or as a second seat at this time. Alternatives for two transport units 2. It goes without saying that an adjustment device for the guide channel 4 is also provided in this embodiment in the direction of the transport device 2 .

In this exemplary embodiment it is provided that the adjusting device 5 as well as the infeed device 8 are designed with threaded spindles. Not shown in detail, the threaded spindles of the adjusting device 5 or the infeed device 8 can each be connected by a chain and provided with a worm gear.

As can be seen from FIGS. 1 and 3 , the transport devices 2 are slightly offset relative to each other in the direction of passage of the workpieces 1 . The offset in the direction of passage can be, for example, 10 to 100 mm, preferably 30 mm. Thus on the one hand it is ensured that the respective brushes 3 of the transport device 2 do not interfere with each other and on the other hand it is nevertheless ensured that the brushes 3 on the transport device 2 are subjected to a uniform and balanced pressure which balances each other so that the workpiece 1 is Will not tip over.

In an exemplary embodiment not shown, four transport devices 2 are provided here, and it has also proven to be advantageous to arrange these transport devices correspondingly offset.

In a variant of the solution according to the invention shown, the transport device 2 is arranged upright, so that the brushes 3 of the transport device 2 move past the workpiece parts essentially vertically.

Another optional solution according to the present invention can be provided with a flat transport device 2, which is not shown, so that the brush 3 is basically horizontally moved and arranged in the position of the workpiece 1. It is expedient here to reinforce the threaded spindle of the adjusting device 5 or of the infeed device 8 by means of a compression roller bearing, which threaded spindle must at least partially bear the weight of the device in the flat state.

In the embodiment according to FIGS. 1 to 5 there are two transport devices 2 arranged upright, the direction of rotation of which is selected in such a way that the brushes 3 of the two transport devices 2 can move in the same direction on the two main surfaces 1c of the workpiece. Move past. This is indicated in FIG. 2 by the four indicated arrows according to the direction of travel of the transport device 2 . This direction of rotation of the transport device 2 or the brush 3 ensures favorable removal of dirt.

As can be seen from FIG. 2 , the direction of rotation of the transport device 2 is selected such that the brush 3 moves past the workpiece 1 from above to below or in the direction of a base plate 9 shown in FIG. 4 . This direction of movement achieves a particularly favorable removal of dirt and a high stability of the device according to the invention and the workpiece 1 to be processed, since such workpieces are not moved uncontrollably by the brush 3 but are fixed and stable The ground is pressed against the base plate 9.

In a variant of the device according to the invention, the transport device 2 is now designed to lie flat; it is advantageous if the direction of rotation of the transport device 2 is chosen so that the brush 3 can move along the workpiece 1 in the direction of a limit plate If it passes through, the limiting plate guides the workpiece 1 on an end face. Similar to the design scheme in which the transport device 2 is upright, the workpiece 1 is pressed against the bottom plate 9 so that the workpiece 1 is stably pressed against the limiting plate.

Experiments have shown that in a configuration of the device according to the invention with four transport devices 2, it is advantageous that each of the two main faces 1c of the workpiece 1 be transported by two counter-rotating transport devices. Device 1 to process. In order to allow a particularly stable and reliable passage of the workpieces 1 it is advantageous if the transport devices 2 are slightly offset relative to one another in the direction of passage of the workpieces 1 as described above. Furthermore, it is advantageous if the direction of rotation is selected such that the first transport device 2 in the direction of passage of the workpiece 1 and the brush 3 of the fourth transport device 2 can pass by the workpiece 1 in the direction of the base plate 9 of. The second and third transport device 2 in the direction of passage of the workpiece 1 are thus moved so that the brushes 3 arranged thereon are opposed to the first and fourth transport device at the position of the workpiece 1. sports. This arrangement ensures that the workpiece 1 is pressed downwards by the first transport device 2 , and the two lower transport devices 2 press the workpiece 1 upwards in the direction of the bottom plate 9 , wherein this is immediately passed again by the following The fourth transport device 2 is corrected, and the fourth transport device presses the workpiece 1 down again. The first and the third transport device and the second and the fourth transport device are each arranged on one side of the workpiece 1 or on a main surface 1c.

The favorable direction of rotation of the transport devices 2 is similarly selected for the horizontal arrangement of the four transport devices 2 , wherein the bottom plate 9 is replaced by a stop plate.

Tests have shown that a circulation speed of the brush 3 of 5 to 30 m/s, preferably 15 to 16 m/s is particularly advantageous. This speed, on the one hand, ensures fast machining of the workpiece 1, and on the other hand, has proven to be suitable with regard to the reliability of the machining and the loading of the participating components.

In the embodiment of the device according to the invention with two transport devices 2 shown in FIGS. 1 to 5 , it is necessary that the workpiece 1 must be rotated and pushed over again. This can be imagined when examining Figure 6, because the grinding of the side 1b or side 1b facing the direction of rotation by the brush 3 is of course more effective than the grinding of the side 1b or 1a pointing in the opposite direction (the so-called "shelter side") better.

In the variant of the solution according to the invention with four transport devices 2 shown in FIG. Pushed through. In the embodiment of the device according to the invention with four transport devices 2, the workpiece is machined with one push.

In a further variant of the device according to the invention, an automatic feed device for passing the workpiece 1 can be provided, which is likewise not shown.

Tests have shown that it is particularly expedient to provide a separate drive for each transport device 2 and can be implemented easily and economically. In the exemplary embodiment an electric motor 10 is used to drive the transport device 2 .

FIG. 5 shows the device according to the invention with a housing 11 . No matter be to push into plate 6 or park platform 7 all can be designed as height-adjustable. It can also be provided that the width of the push-in plate 6 and/or the parking platform 7 is adjustable.

The individual bristles 12 of the brush 3 can be seen from FIGS. 7 to 9 . These hairs 12 are depicted as moving straight in a simplified form. In an advantageous embodiment, however, provision can be made for the bristles 12 to move undulating or curved, so that the bristle tuft 120 of the bristles 2 resembles a loose brush or a bundle.

In the exemplary embodiment according to FIGS. 7 to 9 , the transport device 2 is provided with a V-belt 13 . Alternatives to the V-belt 13 can also be a toothed belt, a flat belt with a tongue, a chain, a steel belt or the like. In the exemplary embodiment shown, the V-belt 13 is designed as a "triple" V-belt 13 with two outer V-belts 13b, 13c and a central V-belt 13a. The middle V-belt 13a is used for installing the brush 3 .

The V-belt 13 can consist of rubber, plastic, synthetic rubber or preferably neoprene. Usually, the brush 3 or the hair 12 and the V-belt 13 are bonded, poured, screwed, stamped or welded. In the embodiment, a PU-covering layer (polyurethane layer) 14 is applied on the V-belt 13 . A support 15 for the brush 3 or the bristles 12, preferably made of rubber or plastic (eg, neoprene), can thus be easily welded to form an advantageous and reliable connection. The thickness of the PU layer 14 can be 1 to 5 mm, preferably 2 mm.

The V-belt 13 can be provided with a plurality of individual brushes ( FIG. 6 ) or with some brushes 3 ( FIG. 17 ) which completely cover the V-belt 13 .

The wool 12 can be injected into the support 15 in bundles 120 . A safe and reliable connection is ensured both between the support 15 and the V-belt 13 and between the support 15 and the injected bundle 120 . Due to the high rotational speeds and the forces that occur, a reliable connection is essential. From this, it can be seen that the speed at which the brush moves is high. The transport device 2 is designed to have a belt drive with a V-belt 13 running smoothly and reliably.

For an advantageous insertion of the bristles 12 or bundles 120 , the bristles 12 can be provided with barbs, not shown in detail. The V-belt 13 is designed in this embodiment as a so-called power belt. Tests have shown that the two outer V-belts 13 b , 13 c are sufficient for driving, so that the middle V-belt 13 a can be used to hold the bristles 12 without problems.

As can be seen from FIGS. 7 to 9 , the support 15 is provided with slots 16 transversely perpendicular to the direction of rotation of the transport device 2 or the V-belt 13 . Alternatively, the carrier 15 can also be formed from individual parts with similar dimensions, which are not shown. It can be provided that the section 15 a of the support 15 is formed by the slit 16 and has a length of 10 to 40 mm. In this embodiment both the length and the width of the segments 15a are 18 mm. Each segment 15a contains a bundle 120 of wool 12 . Every three segments 15 a together form a brush 3 . Of course, other combinations can also be considered here, for example, every two or every four blocks can form a complete brush 3 together. The number of hairs 12 per bundle 120 is not limited to the number shown, rather, many hairs are collected into one bundle 120 .

As can also be seen from FIGS. 7 to 9 , two lint-free segments 15 a are arranged between the brushes 3 of a V-belt 13 formed by bundles 120 . Another quantity can also be considered here. The distance formed between the brushes 3 due to the hairless segments 15 a ensures that a domino effect is avoided, that is to say before the hairs reach the workpiece 1, the hairs that are located ahead in the direction of rotation It turned over and pressed the hair 12 on the back, and the hair 12 on the back couldn't stand upright at all.

Since the support 15 is divided into segments 15a by the slits 16, a particularly small bending radius results, so that the entire arrangement can be produced with a small footprint and economically.

According to the present invention, the length of hair 12 can be made to be 30 to 90 mm, preferably 60 mm.

Support 15 can be made of the same material as V-belt 13. Various embodiments are conceivable here, which are suitable for the introduction of the wool 12 and which can be reliably welded to the PU covering layer 14 .

Various advantageous embodiments of the V-belt 13 can be seen from FIGS. 10 a to 10 d. The V-belt 13 shown in FIGS. 10 a to 10 d has elevations or projections 17 on its upper side provided with supports 75 which are intended to guide or support the supports 15 . FIG. 10a shows here a protrusion 17 of triangular cross-section, which is parallel to the central V-belt 13a. The support 15 to be connected to the V-belt 13 shown in FIG.

FIG. 10 b shows a particularly preferred embodiment of the V-belt 13 , which is also shown in FIG. 11 . The V-belt 13 shown in FIG. 10 b has two projections 17 which are intended to guide or support the carrier 15 from the side. The width of the support 15 or the distance between the projections 17 is preferably matched to one another.

Figure 10c shows another structure of protrusions 17 different from that shown in Figure 10a, which is also parallel to the middle V-belt 13a. A groove/mortise connection is formed between the support 15 and the V-belt 13 by means of the projection 17 .

FIG. 10d shows a simplified design of the V-belt 13 as compared to FIG. 10b, in which the support 15 is guided or stabilized by a protrusion 17 on only one side. As it has been proved by tests, a lateral projection is sufficient to improve the connection between the support 15 and the V-belt 13 .

The protrusion 17 shown in FIGS. 10 a to 10 d advantageously prevents a rotation or rotational movement of the support 15 .

The construction of the V-belt shown in FIGS. 10 a to 10 d can be produced simply and economically and is used for an additional positive connection of the support 15 to the V-belt 13 .

FIG. 11 shows a V-belt 13 on which a support 15 made of rubber or plastic is fastened, riveted, bonded, welded or clamped. The holder 15 for receiving the brush 3 or the bristles 12 consists of parts 15b, two of which are shown by way of example in FIG. 11 . The distance between the portions 15b is in this embodiment 3 to 20 mm, preferably 6 to 10 mm. Of course, the sections 15b can also have no spacing or have a larger spacing.

FIG. 12 shows an advantageous embodiment of the section 15b. The parts 15b each have a groove 18 at one end and a tenon 19 at the other end, by means of which the parts 15b can be connected to one another. This groove/mortise connection prevents twisting of the part 15b in a simple and advantageous manner.

For the sake of clarity, in both Figures 11 and 12 the portion 15b has no inserted hairs 12 .

FIG. 13 shows a portion 15b or a segment 15a of a support 15 into which hairs 12 are inserted. The bristles 12 of the brush 3 are inclined at a maximum of ≦45°, preferably about 15°, in the direction of rotation. This means that the tips of the bristles 12 are located in front of the corresponding facing away ends of the bristles connected to the support 15 in the direction of rotation. As proved by experiments, the hairs inclined at about 15° are particularly advantageous in entering the recesses of the workpiece 1, so that the oxide layer on the cut surface 1b and the cutting edge 1a of the workpiece 1 is particularly advantageously removed. Of course, the inclined position of the hairs can also exceed 45°, but under certain conditions this can cause the hairs 12 to be skewed and damaged when entering the recess of the workpiece 1 .

FIG. 14 shows a modification of the portion 15b shown in FIG. 13 with a support bristle 20 . As evidenced by tests, the support bristles 20 stabilize the obliquely arranged bristles 12 and thus improve the penetration of the bristles into the recesses of the workpiece 1 or ensure uniform descaling. In an advantageous embodiment, the support hairs 20 are shorter than the hairs 12 . An arrangement of the supporting hairs 20 perpendicularly or at right angles to the surface of the support 15 or to the surface of the portion 15 b has proven to be advantageous for stabilizing or supporting the hairs 12 . The connection of the support hairs 20 to the support 15 can be carried out analogously to the connection of the hairs 12 to the support 15 .

The bristles 12 of the brush 3 shown in FIGS. 13 and 14 can advantageously be designed as intertwined bristles and/or grinding bristles. This has been proven to be particularly suitable in experiments.

FIG. 15 shows a part 15b of the carrier 15, which has a bundle 20 of hair 12, which is surrounded by a jacket 21 in a stable or supportive manner. The jacket 21 is used as an alternative to using support wool 20 . As shown in FIG. 15 , the lower end of the fur 12 of the coat 21 reaches approximately the middle part of the hair 12 . This has proven to be particularly advantageous for stabilization without the danger of the jacket coming into contact with the workpiece 1 .

FIG. 16 shows a V-belt with a section 15b arranged as shown in FIG. 11, wherein the section 15b has hairs 12 arranged at an inclination of about 15° as shown in FIG. Here is a particularly preferred embodiment.

FIG. 17 shows a part of a transport device 2 after a deflection point 22 in the direction of rotation, before the brushes 3 or bristles 12 come into contact with the strip-shaped or plate-shaped metal workpiece 1 again. A blocking element 23 is provided in this region. This steering position 22 has also been shown in Fig. 2 for the sake of clarity. The so-called steering position 22 is exactly the position where the V-belt 13 is turned, under the influence of the rollers driving the V-belt 13, the rollers or the like. The direction of movement of the V-belt 13 is opposite before or after the turning position 22 . The inventors have surprisingly found that the bristles 12 are bent in the direction of rotation after the deflected position 22 and only then erect again in a defined manner, preferably at an inclination of 15°. The bending of the bristles 12 takes place when the brush 3 or the bristles 12 leaves the circular path of the deflection point 22 and turns into a linear or rectilinear point of motion. The bending of the hair 12 is mainly caused by leaving the circular track of the turning point 22, but the hair 12 also produces a corresponding oscillation, which results in a forward longitudinal bending movement.

The inventors have also realized that this forward bending can be prevented by a blocking element 23 . The blocking element 23 can preferably be mechanical, such as a steel roller, which can enter the track of the brush 3 so that the tips of the bristles 12 hit it and thus reduce the oscillations which cause the bristles 12 to bend. The steel rollers 23 can be arranged, as shown in FIG. 17, on a plate 24 which is preferably pivotably arranged on a (not shown) fixed housing part.

In a flat embodiment of the device according to the invention, the hair 12 can protrude upwards in the workpiece 1 to be processed, and the steel roller 23 with the plate 24 can be placed on the tip of the hair 12 in a simple manner, wherein The gravity of steel roller 13 and plate 24 is enough to be used for compressing. In another arrangement or if the bristles 12 protrude downwards in the direction of the workpiece 1 to be processed, the necessary pressing force can also be generated in a simple manner, for example by means of a spring not shown.

Since bending of the brush 3 or the bristles 12 is prevented by the blocking element 23 , a uniform and precise machining of the workpiece 1 can be achieved. Instead of a steel roller 23 , it is also possible to insert a different blocking element of any kind into the orbit of the rotating bristles 12 , so that the bristles 12 collide accordingly and reduce the vibration. In a further embodiment not shown, the blocking element 23 can also be designed as a magnet, which is arranged in the region of the deflection point 22, so that the hairs 12' are prevented from bending due to the magnetic force of the magnet. It is advantageous to arrange the magnets in the region where the hairs 12 bend after leaving the circular path. It is also possible if the magnet is arranged immediately before this position, that is to say after it in the direction of rotation, so that the magnetic force acts on the hairs 12 at an earlier moment and pulls them back and thus overcomes the bend. is advantageous.

FIG. 18 shows a particularly preferred embodiment of the device according to the invention with four transport devices 2 . The preferred setting of the direction of rotation of the transport device 2 has already been discussed above. Also with regard to FIG. 18 , the preferred embodiment, which has also been discussed in particular in FIGS. 10 to 17 , will not be discussed in detail again. Fig. 18 has only schematic representation by device of the present invention, and wherein figure is reduced to important parts and components to the present invention. FIG. 18 shows the device according to the invention in the horizontal position, that is to say the workpiece 1 is inserted flat and pushed over.

As already mentioned above, a push-in plate 6 is used to place the workpiece 1 on. There is a parking table 7 for sending the workpiece 1 out. Between the second and the third transport device 2 there is a bottom plate 9 which serves for the stable passage of the workpieces 1 through the device. Push-in plate 6, parking platform 7 and base plate 9 are all designed as platform member in the embodiment shown in Fig. Roller. Since the table-like members 6 , 7 , 9 are provided with a roller system, it is particularly convenient to push the workpiece 1 through the device transversely perpendicular to the transport device 2 . The difference with the rubber conveyor belt is that the roller system is much stronger and less susceptible to damage caused by skewing of the workpiece 1 .

The device according to the invention shown in FIG. 18 also has three feed rollers 26 for passing workpieces 1 . The feed roller 26 consists in this embodiment of a metallic base body which is coated with rubber. In a preferred embodiment not shown in detail, the glued layer has a contour or an indentation, for example a cross pattern. Other patterns can also be used here, as they are known, for example, from the tire profile. The outer covering of the base body of the feed roller 26 can be made of rubber or plastic. A uniform and reliable transport of the workpieces 1 transversely perpendicular to the direction of rotation of the transport device 2 is ensured by the feed rollers 26 .

Behind the bristles 12 in the advancing direction of the workpiece 1, as can be seen from FIG. 18, a brush guide 27 is provided, which should prevent the brushes 3, depending on the advancing movement of the workpiece 1, from snapping off or moving backwards. . Another sliding plastic that is particularly suitable for the brush guide 27, in particular a wear-resistant plastic, such as a special plastic known as S-Green (S-Grün), for example.

The brush 3 or the bristles 12 are thus simply prevented from sliding backwards, that is to say in the pushing-through direction of the workpiece 1 .

Tests have shown that a particularly favorable guidance of the V-belt 13 can be achieved by arranging the support rollers 28 at a distance of preferably 100 mm. The supporting rollers 28 prevent the V-belt 13 from being pressed away from the workpiece 1 to be processed. A distance of 100 mm between the support rollers 28 has proven to be sufficient here.

For simplicity, neither the belt nor the motor is shown in FIG. 18 . But the table shows a bracket 29 for the motor and the belt. The variant according to the invention with four transport devices 2 shown in FIG. 18 enables complete machining of workpieces in one pass. The workpiece 1 does not need to be pushed in again. The speed at which the brush 3 or the bristles 12 are moved along the workpiece 1 is preferably 15 to 16 m/s.

Technical details not shown in detail in FIG. 18 can be found in the vertical embodiment of the device according to the invention described in FIGS. 1 to 5 .

The device according to the invention can be produced with different processing lengths or different widths for inserting workpieces 1 .

Claims (38)

1. device that is used to process band shape or plate-shape metal workpiece, this metal works has first and second interareas and cut surface and cutting edge, described device carries out at least a processing in removal oxide layer, grinding and the rust cleaning of the described cut surface of described workpiece or cutting edge

Wherein, this device comprises at least the first, second, the 3rd, with the 4th conveying arrangement (2,2,2,2), and this first, second, the 3rd, with the 4th conveying arrangement (2,2,2,2) each in all has at least one brush (3), described workpiece (1) transverse at least this first, second, the 3rd, with the 4th conveying arrangement (2,2,2, the loop direction of described at least one brush (3) of each 2) moves, and the conveying arrangement (2,2) of two recycled back operations is positioned on the interarea of workpiece (1), and the conveying arrangement (2,2) of two other recycled back operation is positioned on other interarea of workpiece (1).

2. by the described device of claim 1, it is characterized in that, conveying arrangement (2) is upright to be arranged, make described at least one brush (3) at workpiece (1) position substantially for being arranged vertically or flatwise layout, making this at least one brush (3) is level run at workpiece (1) position substantially.

3. by the described device of claim 2, it is characterized in that, select the circulation direction of rotation of the upright conveying arrangement of arranging (2), described at least one brush (3) can pointed on base plate (9) or the direction from the top down through workpiece (1).

4. by the described device of claim 2, it is characterized in that, select the direction of rotation of the conveying arrangement (2) of flatwise layout, make described at least one brush (3) can be along workpiece (1) process on the direction of pointing to a limiting plate, this limiting plate leads workpiece (1) on an end face.

5. by claim 3 or 4 described devices, it is characterized in that, when being furnished with four conveying arrangements (2), workpiece (1) pass through first conveying arrangement (2) on the direction and the circulation direction of rotation of the 4th conveying arrangement (2) is selected like this, make the brush (3) can be through workpiece (1) on the direction of pointing to base plate (9) or limiting plate.

6. by the described device of claim 1, it is characterized in that each conveying arrangement of the described at least first, second, third and the 4th conveying arrangement (2,2,2,2) all has the brush (3) that a plurality of spaces are arranged.

7. by the described device of claim 1, it is characterized in that, the guide channel (4) that also comprises the thickness that is set to workpiece (1) makes workpiece (1) laterally guide to move through this guide channel with respect to the direction of rotation of at least one conveying arrangement in the first, second, third and the 4th conveying arrangement (2).

8. by the described device of claim 1, it is characterized in that, also comprise adjusting device, be used for mutually adjusting described first and second conveying arrangements (2), be used for revising the wearing and tearing of described at least one brush (3).

9. by the described device of claim 1, it is characterized in that the hair that the hair (12) of at least one brush (3) of each in the described first, second, third and the 4th conveying arrangement (2,2,2,2) is used for the hair and/or the grinding of mutual coiling.

10. by the described device of claim 1, it is characterized in that, the described first, second, third and the 4th conveying arrangement (2,2,2, the hair (12) of at least one brush (3) of each 2) all tilts≤45 ° abreast, and on direction of rotation the top front of hair end opposite separately that is positioned at of each mao.

11., it is characterized in that each harness (120) hair (12) surrounds with an overcoat (21) that plays stable or supporting role respectively by the described device of claim 9.

12., it is characterized in that the hair (12) of brush (3) or brush (3) and conveying arrangement (2) separately are bonding, cast, screw are fixed, punching press or welding by the described device of claim 1.

13., it is characterized in that the rotary speed of described at least one brush (3) reaches 5 to 30 meter per seconds by the described device of claim 1.

14., it is characterized in that each conveying arrangement in the described first, second, third and the 4th conveying arrangement (2,2,2,2) all has an independently drive unit by the described device of claim 1.

15., it is characterized in that each conveying arrangement in the described first, second, third and the 4th conveying arrangement (2,2,2,2) is a kind of in V belt (13), odontoid belt, the flat belt with joint tongue and the chain by the described device of claim 1.

16., it is characterized in that the described first, second, third and the 4th conveying arrangement (2 by the described device of claim 1,2,2,2) each conveying arrangement in is a triple V belt (13a, 13b, 13c), wherein Zhong Jian V belt (13a) is used to lay brush (3).

17., it is characterized in that V belt (13) is by at least a the making in rubber, the plastics by the described device of claim 15.

18. by the described device of claim 15, it is characterized in that, V belt (13) have polyurethane cover layer (14) and by rubber or plastics make be used for brush (3) or brush (3) the hair (12) bearing (15), this bearing is connected by welding to polyurethane cover layer (14).

19. by the described device of claim 15, it is characterized in that bearing (15) a kind of mode of fixing, rivet, bond, welding or clamping by screw of the hair of being made by rubber or plastics (12) that is used for brush (3) or brush (3) is connected to V belt (13).

20. by the described device of claim 19, it is characterized in that the top and bearing (15) of V belt (13) is connected, have protuberance or projection (17) above the V belt (13) and be used for guiding or bearing support.

21., it is characterized in that bristle (12) becomes harness to inject in the bearing by the described device of claim 18 (120).

22. by the described device of claim 18, it is characterized in that, bearing (15) is made of a plurality of single parts (15b) or has the joint-cutting (16) transversely arranged with respect to the direction of rotation of conveying arrangement (2), and wherein a plurality of parts (15b) or the piecemeal (15a) that is separated by joint-cutting (16) have 10 to 40 millimeters length.

23. by the described device of claim 22, it is characterized in that, each several part (15b) all end in front end or tail end has a groove (18) and the other end in front end or tail end has a tenon (19), by means of described groove and tenon these parts (15b) is connected with each other.

24. by the described device of claim 22, it is characterized in that, between two that separate by joint-cutting (16) to four adjacent parts (15b) or adjacent piecemeal (15a), hair (12) and a formation brush (3) be housed.

25. by the described device of claim 24, it is characterized in that, between the brush (3) of a V belt (13), be furnished with one to three adjacent part without bristles (15b) or piecemeal (15a).

26., it is characterized in that each adjacent piecemeal (15a) or part (15b) are separated 3 to 20 millimeters by the described device of claim 24.

27. by the described device of claim 1, it is characterized in that, see that on direction of rotation again with before metal works (1) contacts, a barrier element (23) is positioned at a steering position (22) downstream of described conveying arrangement (2) at brush (3) or bristle (12).

28. by the described device of claim 27, it is characterized in that, barrier element (23) is arranged in so a kind of position: brush in this position (3) or brush bristles (12) are left the circuit orbit that is decided by conveying arrangement (2) steering position (22), and are transformed into linear or rectilinear motion.

29., it is characterized in that barrier element (23) mechanically stops hair (12) that bending takes place by the described device of claim 27 on direction of rotation.

30. by the described device of claim 29, it is characterized in that barrier element (23) is introduced in the track of brush (3) or bristle (12), thereby make the most advanced and sophisticated described barrier element of conflicting of bristle (12).

31. by the described device of claim 1, it is characterized in that, the described first, second, third and the 4th conveying arrangement (2,2,2,2) each conveying arrangement in is a V belt, this V belt have by directly or via a bearing bond, screw is fixed or weld in a kind of mode be combined in mao (12) on the top side of V belt, and this hair (12) tilt in the rotation direction of V belt≤45 °.

32. by the described device of claim 10, it is characterized in that, the described first, second, third and the 4th conveying arrangement (2,2,2,2) equal about 15 ° of the parallel oblique of the hair (12) of at least one brush (3) of each conveying arrangement in, and each mao top is positioned on the direction of rotation in the front of the end opposite of hair separately.

33., it is characterized in that described rubber is synthetic rubber by the described device of claim 17.

34., it is characterized in that described rubber is neoprene by the described device of claim 17.

35. device that is used to process band shape or plate-shape metal workpiece, this metal works has first and second interareas and cut surface and cutting edge, described device carries out at least a processing in removal oxide layer, grinding and the rust cleaning of work piece cut face and cutting edge

This device comprises at least two conveying arrangements (2), described workpiece can be obliquely or is laterally guided with respect to the direction of rotation of conveying arrangement (2) between these two conveying arrangements, makes each conveying arrangement (2) process the described cutting edge of described workpiece (1) by related brush (3);

Wherein, conveying arrangement (2) is arranged to setover a little mutually on the direction that workpiece (1) passes.

36. by the described device of claim 35, it is characterized in that, the equal parallel oblique≤45 ° of the hair (12) of at least one brush (3) of each conveying arrangement in described first and second conveying arrangements (2,2), and the tip of each mao is positioned at along the direction of rotation front of the end opposite of hair separately.

37. by the described device of claim 36, it is characterized in that, equal about 15 ° of the parallel oblique of the hair (12) of at least one brush (3) of each conveying arrangement in first and second conveying arrangements (2,2), and the tip of each mao is positioned at along the direction of rotation front of the end opposite of hair separately.

38., it is characterized in that conveying arrangement (2) is arranged to 10 to 100 millimeters of biasings mutually by the described device of claim 35 on the direction that workpiece (1) passes.

Images