DE19916814C2 - Device for introducing rolled sheet into a rolling stand - Google Patents

Description

The invention relates to a device for inserting rolled sheet into a rolling train ready, with a substructure, with two side plates arranged on the substructure, at least one of them transverse to the direction of insertion of the rolled sheet for adjustment Solution to the width of the sheet is adjustable, with an adjustment device Adjustment of the at least one adjustable insertion part, with a first one at the Un provided and connected to the adjustment device device, with which in turn the at least one adjustable insertion part is connected, and with a second guide device provided on the substructure for the we at least an adjustable insertion part.

A device for inserting rolled sheet of the type mentioned is already known from DE-PS 405 008. Devices of the known type are rolled upstream to the rolled sheet both laterally and in height when Run into the roll stand and stabilize it. To adapt to the The width of the rolling plate, the known device has two opposite directions adjustable insertion parts. To adjust the insertion parts, the known device provided two spars as guide devices which the insertion parts are slidably attached. For adjusting the insertion parts serves a motor-gear unit, with which a first adjusting spindle corresponds is coupled to the first guide rail. Ver. Are located on the adjusting spindle adjusting nuts on which the insertion parts are attached. Through this construction a linear adjustment of the insertion parts when the adjusting spindle rotates allows. A second adjusting spindle corresponds to the first adjusting spindle Area of the second guide rail. The first and the second adjusting spindle are connected to each other via an open chain system.

The known device has a number of disadvantages. The execution with the two adjusting spindles and the adjustable adjusting nuts on it, the Ver adjusting spindles are connected to each other via an open chain system, only one limited power transmission too. Furthermore, both the guide rails and the adjustment spindles and the chain system are also open and are therefore very susceptible against scale and dirt. Due to the aforementioned problems, it can be in the Known device easily come to malfunctions, with the result that the insertion parts are not adjustable to the desired inlet width, which leads to considerable operational  Faults can result if the rolled sheet against the insertion parts will drive. As a result of the aforementioned vulnerability of the known device, that these only have a very limited period of use, usually one to two years Has.

The object of the present invention is therefore a device for insertion of rolled sheet of the type mentioned to provide the simple is constructed, ensures a safe adjustment of the insertion parts and thereby has increased operational reliability and a longer service life.

The previously derived and mentioned task is essentially according to the invention solved in that the adjustment of the at least one adjustable insertion part via the adjustment device only via the first guide device, while the second guide device is not coupled to the adjusting device is.

According to the invention it has been found that with appropriate training of the first guide device is sufficient, only the first guide device to couple with the adjusting device while a power transmission to the second Guide device is not required. From the configuration according to the invention tion results in corresponding adjustment means in the area of the second guide direction, as is the case in the prior art by means of the second adjusting spindle, are not required. Also a power transmission system between the first and the second guide device is no longer required in the invention. Dar from it follows that ultimately the susceptibility to failure of the invention Device compared to the known device is significantly reduced, what how which entails an increased duration of use.

For easy assembly and disassembly of the device according to the invention To ensure that there is at least one adjustable insertion part on the second guide tion device only guided, but not with the second guide device firmly connected. The at least one adjustable insertion part is permanently connected Lich with the first guide device. This training is only possible because the adjustment takes place exclusively via the first guide device and the second management device only performs a management function.  

In order to achieve a high level of force in the first leadership To be able to guarantee direction, the first guide device has at least a guide block guided in a guide essentially free of play, with which is connected to the at least one insertion part to be adjusted, the length of the guide block is greater than the maximum adjustment path of the at least one adjustable insertion part. The result is a very long guide block extremely large power transmission range for the transmission of the occurring Forces provided by the insertion parts in the substructure.

In this context, it is particularly preferred that the leadership in is essentially designed as a hollow profile. By training the leadership as Hollow profile ultimately results in a very protected arrangement of the movable parts the guide device and the adjustment device as well as the guide surfaces itself, so that an impairment of function due to contamination he is significantly reduced.

Constructively, the hollow profile-like guide can be formed in a simple manner that a lower U-shaped guide part is provided, in which the guide block is slidably arranged. On the lower U-shaped guide part is a upper guide part, which can be plate-shaped or also U-shaped, placed. The two-part training also allows any repairs be able to perform in the area of leadership in a simple manner.

On the one hand, an easily accessible connection of the at least one adjustable to ensure ren insertion part to the guide block and on the other hand safe to deliver that the guide is largely protected against pollution, is on Guide block on opposite sides each at least one laterally wing provided while in the guide and especially at the transition of the two guide parts each have a longitudinal slot for the wings is. The insertion part is then connected via the guide block in such a way that the insertion part is placed on the wings using the appropriate feet and fixed with them connected is. The connection can easily be made using a screw connection respectively. It is particularly advantageous in this connection that between the Wings of the guide block and the feet of the insertion part one in the insertion direction  of the rolled sheet effective positive connection is provided. Due to the form conclusive connection ensures that on the one hand the screw connection is not is claimed for shear and that, on the other hand, after making the mold finally the insertion parts sit on the wings in the right place, what the Assembly simplified.

Because the guide and the guide block when adjusting a significant friction are on the guide block and / or in the guide on the side, underneath and / or protruding sliding parts attached. The sliding parts are preferably made of ent made of wear-resistant material. It is preferred in this context menhang in the rest that the sliding parts releasably on the guide block and / or the Füh tion are fastened so that they are easily worn after appropriate wear can be replaced while the guide block itself ver always can be applied.

While in the prior art both management devices essentially are identical, this is not the case with the invention. This takes over the second guide device - as already mentioned - only one Guide and support function for the at least one adjustable insertion part. According to the invention it is provided that the second guide means on Substructure trained guide in which the at least one adjustable one engages with a guide arm. The shape of the guide ensures that on the one hand, dirt falling from above does not fall directly into the guide Leadership on the other hand can be easily cleaned. It is preferred in this Context that the guide has an L-shaped lower part and an upper flat Has upper part for connection to the lower part. This configuration will not only the assembly of the device according to the invention is very simplified, it is also possible in a simple way to enable access to the guide for example sliding parts provided in the guide and / or on the guide arm can be to lubricate or renew.

As in the prior art, the adjustment device according to the invention also has a motor-gearbox unit. In contrast to the state of the art, it shows inventive adjustment device but an adjustable rack that over  a corresponding gear with the motor-gear unit and detachable at the end is connected to the guide block. over the rack can be done in a simple way a linear adjustment of the insertion part can be realized. Acting on the rack it is a simple mechanical component, the way it works due to the protected arrangement in the hollow profile of the guide in no way is impaired, so that no functional impairments due to dirt tongues are to be feared. Nevertheless, in the event of a malfunction, be it on the tooth rod or on the guide block, the respective component can be easily replaced without the entire unit consisting of the guide block and the rack should be exchanged.

Incidentally, it is understood that instead of using a toothed rack it is also possible to use another means for linear adjustment of the insertion part use. For example, it is possible to use at least one piston Cylinder arrangement in particular with a position measuring system.

Moreover, it is preferred that not only one of the insertion parts, but that both insertion parts are adjustable. In this case, the adjustment device then two counter-adjustable racks. So that the invention The device in this configuration has a compact design is the motor Ge Drive unit arranged on the side of the substructure next to one of the insertion parts. there the two racks are arranged one above the other, with the upper rack with which the first guide block close to the motor-gearbox unit is connected rend the lower rack with the second guide remote from the motor-gear unit block is connected.

In this context, it is particularly preferred that in the first guide block a recess on the underside for the passage of the second rack hen is. This ensures that the guide itself for the rack no groove or the like must be provided, so that only the guide block and a corresponding recess is provided without impairing its function must be seen.

In order to be able to move the two guide blocks as far as possible NEN, is the second rack on the motor gear unit facing away  End of the second guide block attached. This is in the second management block a recess on the underside for the passage of the second rack hen. The second rack is from above with the second guide block to connect, so that a release of the second guide rod from the second guide approximately block is possible in a simple manner if the upper guide part is removed men is.

The invention is described in more detail below on the basis of exemplary embodiments ben.

It shows

Fig. 1 is a perspective view of an inventive device for introduction of sheet metal,

FIG. 2 shows a cross-sectional view of the device from FIG. 1, FIG.

Fig. 3 is a plan view of the device of Fig. 1 and

Fig. 4 is a rear perspective view of part of the device according to the invention.

In the individual figures, a device 1 for introducing rolled sheet into a roll stand, not shown, is shown. The device 1 has a base 2 and two insertion parts 3 , 4 arranged on the base 2 . In the exemplary embodiment shown, both insertion parts 3 , 4 can be adjusted in opposite directions to one another transversely to the direction of insertion E of the rolled sheet to adapt to the width of the rolled sheet. As can be seen in particular from FIG. 1, the two insertion parts 3 , 4 form an adjustable insertion gap 5 .

Furthermore, the device 1 has an adjusting device 6 for adjusting the two insertion parts 3 , 4 . Furthermore, the device 1 is provided with a first on the sub construction 2 and connected to the adjusting device 6 Guide device 7 , to which in turn the adjustable insertion parts 3 , 4 are connected, and with a second guide device 8 provided on the base 2 for the insertion parts 3 , 4th

It is now essential that the adjustment of the two insertion parts 3 , 4 takes place via the adjustment device 6 only via the first guide device 7 , while the second guide device 8 is not coupled to the adjustment device 6 . The two insertion parts 3 , 4 on the second guide device 8 are only ge leads, but not firmly connected to the second guide device 8 . This is shown in Fig. 4, which will be discussed in more detail below.

In the embodiment shown in the figures, the first guide device 7 has a first guide block 10 and a second guide block 11 , both of which are guided in a guide 9 . Each of the two insertion parts 3 , 4 is firmly connected to a guide block 10 , 11 . Otherwise, the maximum adjustment path V of the insertion parts 3 , 4 is smaller than the length L of a guide block 10 , 11 . In the present case, the length L of a guide block 10 , 11 is approximately twice as large as the maximum adjustment path V of a guide part 3 , 4 .

It is not shown in detail that the guide 9 is essentially designed as a hollow profile. For this purpose, the guide 9 has a lower U-shaped guide part 12 and an upper guide part 13 . The upper guide part 13 is in the present case even if U-shaped and placed on the lower guide part 12 and thus screwed tight. Screws 14 in this regard are shown, for example, in FIG. 3. In addition, a positive locking step is provided at the transition from the lower guide part 12 to the upper guide part 13 . The positive connection acts transversely to the direction of insertion E.

On each of the guide blocks 10 , 11 laterally from standing wing 1 p. 16 are provided on opposite sides. In the guide 9 and in particular at the transition of the two guide parts 12 , 13 , a longitudinal slot 17 , 18 is provided for each of the wings 15 , 16 laterally. Corresponding to the wings 15 , 16 are on the guide parts 3 , 4 feet 19 , 20 for placing on the wings 15 , 16 and for connecting to them. In addition, between the wings 1 , 16 and the feet 19 , 20 similar to the connection of the lower guide part 12 with the upper guide part 13 , an effective positive connection is provided in the insertion direction E of the rolled sheet Ver connection. For this purpose, corresponding projections 21 are provided on the underside of the feet 19 , 20 , which engage in corresponding grooves 22 on the wings 15 , 16 . Otherwise, the feet 19 , 20 are screwed to the wings 15 , 16 . Ent speaking openings 23 for the screw connections are for example shown in Fig. 3 is.

As can be seen in particular from FIGS. 2 and 6, on the guide blocks 10 , 11 laterally, on the underside and also on the top protruding, not shown sliding parts are provided. The sliding parts are comparatively short pieces which are releasably attached to the guide blocks 10 , 11 , namely screwed to them, and can therefore be easily replaced. Corresponding to the short sliding parts, slides or rails, not shown, are also provided in corresponding positions in the guide 9 , on which the guide blocks rest with or with their sliding parts. However, the sliders extend over the entire adjustment path of the respective guide blocks 10 , 11 . Otherwise, the sliding parts, like the sliding parts, are also releasably attached to the guide 9 .

The second guide device 8 has a guide 26 provided on the substructure 2 . Each of the insertion parts 3 , 4 has a guide arm 27 which engages in the guide 26 , as can be seen in particular from FIG. 4. Not shown is also gene that protruding sliding parts are also releasably attached in the guide 26 and on the guide arm 27 . In addition, the arm 27 extends from the foot 20 in Rich direction on the guide 26th The guide 26 also has a substructure 2 belonging L-shaped lower part 28 and a flat upper part 29 placed on the lower part 28 and in particular special, which is screwed to the lower part 28 . By taking off the upper part 28 , the insertion parts 3 , 4 can be removed from the base 2 after loosening the feet 19 , 20 .

As is apparent especially from FIG. 3, the adjustment device is a motor-gear unit 31 with two adjustable racks 32, 33 to 6, wherein each of the racks 32, 33 is detachably connected to a guide block 10, 11. In the present case, the toothed racks 32 , 33 are screwed to the respective guide blocks 10 , 11 , which results in particular from FIG. 3. The racks 32 , 33 are each coupled to a gear 34 of the motor-gear unit 31 , in such a way that the racks 32 , 33 are linearly adjustable in opposite directions. The motor-gear unit 31 is arranged on the side of the substructure 2 next to the insertion part 3 and flanged on the substructure 2 . The two racks 32 , 33 are arranged one above the other, the upper rack 32 being connected to the first guide block 10 and the lower rack 33 being connected to the second guide block 11 . The toothed rack 32 , like the toothed rack 33 , has a toothing region with which the toothed wheel 34 meshes. On its first guide block 10 facing the end of the rack is angled, wherein the respective end of the first guide block 10 and is bolted placed therein from above. The second rack 33 is formed in two parts, the two rack parts being screwed together. The two-part design of the rack 33 also results in a type of angling or gradation as in the first rack 32 .

The second rack 33 is arranged inside the guide 9 under the guide blocks 10 , 11 . For this purpose, a recess 35 , 36 for the second rack 33 is provided on the underside of both the first guide block 10 and the second guide block 11 . The second rack 33 is screwed to the second guide block 11 from above, as can be seen in particular in FIG. 2.

For the protected arrangement of the racks 32 , 33 is in the end at the end of the motor-gear unit 31 hen a cover 35 , 36 in which the ends of the racks 32 , 33 can move back and forth. A closed arrangement of the entire structural unit is thus also ensured at the end of the toothed racks 32 , 33 .

Claims (19)

1. Device ( 1 ) for inserting rolled sheet into a rolling stand, with a substructure ( 2 ), with two on the substructure ( 2 ) arranged insertion parts ( 3 , 4 ), at least one of which is transverse to the direction of insertion (E) of the rolled sheet is adjustable to adapt to the width of the rolled sheet, with an adjusting device ( 6 ) for adjusting the at least one adjustable insertion part ( 3 , 4 ), with a first guide device provided on the substructure ( 2 ) and connected to the adjusting device ( 6 ), with which again the at least one adjustable insertion part ( 3 , 4 ) is connected, and with a second guide device ( 8 ) provided on the substructure ( 2 ) for the at least one adjustable insertion part ( 3 , 4 ), characterized in that the adjustment of the at least one adjustable Insertion part ( 3 , 4 ) via the adjustment device ( 6 ) only via the first guide device ( 7 ), while the second guide device Attention ( 8 ) is not coupled to the adjusting device ( 6 ). 2. Device according to claim 1, characterized in that the at least one adjustable insertion part ( 3 , 4 ) on the second guide device ( 8 ) leads only GE, but is not firmly connected to the second guide device ( 8 ). 3. Apparatus according to claim 1 or 2, characterized in that the first guide device has at least one in a guide ( 9 ) guided guide block ( 10 , 11 ) with which the at least one adjustable insertion part ( 3 , 4 ) is the verbun and that the length (L) of the guide block ( 10 , 11 ) is preferably greater than the maximum adjustment path (V) of the at least one adjustable insertion part ( 3 , 4 ). 4. The device according to claim 3, characterized in that the guide ( 9 ) is essentially designed as a hollow profile. 5. The device according to claim 4, characterized in that the guide ( 9 ) has a lower U-shaped guide part ( 12 ) and one on the lower guide part ( 13 ) attachable and thus securely connectable upper guide part ( 13 ). 6. Device according to one of claims 3 to 5, characterized in that on the guide block ( 10 , 11 ) on opposite sides in each case at least one laterally projecting wing ( 15 , 16 ) is provided that in the guide ( 9 ), in particular at the transition of the two guide parts ( 12 , 13 ), laterally in each case a longitudinal slot ( 17 , 18 ) for the wings ( 15 , 16 ) is provided and that the at least one adjustable A guide part ( 3 , 4 ) feet ( 19 , 20 ) for mounting the wings ( 15 , 16 ) and for connecting to them. 7. The device according to claim 6, characterized in that between the wings and the feet ( 19 , 20 ) an effective in the direction of insertion (E) of the rolled sheet positive connection is provided. 8. Device according to one of claims 3 to 7, characterized in that on the guide block ( 10 , 11 ) and / or in the guide ( 9 ) laterally, underside and / or oversize projecting sliding parts are attached and that the sliding parts releasably on Guide block ( 10 , 11 ) and / or in the guide ( 9 ) are attached. 9. Device according to one of claims 1 to 8, characterized in that the second guide device ( 8 ) has a on the substructure ( 2 ) provided guide ( 26 ) into which the at least one adjustable insertion part ( 3 , 4 ) with a guide arm ( 27 ) engages. 10. The device according to claim 9, characterized in that the guide ( 26 ) has an L-shaped lower part ( 28 ) and an attached and in particular flat upper part ( 29 ) for connection to the lower part. 11. The device according to claim 9 or 10, characterized in that in the Füh tion ( 26 ) and / or on the guide arm ( 27 ) projecting sliding parts are attached and that the sliding parts releasably on the guide arm ( 27 ) and / or in the guide ( 26 ) are attached. 12. Device according to one of claims 1 to 11, characterized in that the adjusting device ( 6 ) has a motor-gear unit ( 31 ) with an adjustable rack ( 32 , 33 ) and that the rack ( 32 , 33 ) releasably with the guide block ( 10 , 11 ) is connected. 13. Device according to one of claims 1 to 12, characterized in that both insertion parts ( 3 , 4 ) are adjustable. 14. The apparatus according to claim 13, characterized in that the Verstelleinrich device ( 6 ) has two counter-adjustable racks ( 32 , 33 ). 15. The apparatus of claim 13 or 14, characterized in that the motor-gear unit ( 31 ) on the side of the base ( 2 ) next to one of the insertion parts ( 3 ) is arranged that the racks ( 32 , 33 ) are arranged one above the other that the upper rack ( 32 ) with the first guide block ( 10 ) close to the motor-gear unit ( 31 ) and the lower rack ( 33 ) with a second guide block ( 11 ) remote from the motor-gear unit ( 31 ) connected is. 16. The apparatus according to claim 15, characterized in that in the first guide block ( 10 ) on the underside, a recess ( 35 ) is provided for passing the second rack ( 33 ). 17. The apparatus of claim 15 or 16, characterized in that in the second guide block ( 11 ) on the underside a recess ( 36 ) is provided for passing the second rack ( 33 ). 18. Device according to one of claims 15 to 17, characterized in that the first and the second guide block ( 10 , 11 ) are constructed identically. 19. The device according to one of claims 1 to 13, characterized in that the Adjustment device for actuating at least one piston-cylinder arrangement having.