DE102015216387A1 - Straightening machine with modular exchangeable cassette system - Google Patents

Abstract

In a straightening machine (1) with associated straightening roller drive (31), comprising an upper bearing frame (2) and a lower bearing frame (3), in which a plurality of straightening rollers (7) and support rollers (8) are mounted like a cassette and arranged interchangeable a solution is provided which provides an improved adaptability of a straightening machine to different judicial requirements and Richtbereiche. This is achieved in that the entirety of each of the upper and / or lower bearing frame (2, 3) arranged straightening rollers (7) and support rollers (8) on a plurality of modularly matched and each formed in the manner of an exchangeable removable cassette straightening roller segments (4th -6, 9-30), wherein each straightening roller segment (4-6, 9-30) comprises at least one layer of support rollers (8) and at least one associated straightening roller (7).

Description

The invention is directed to a straightening machine with associated straightening roller drive, comprising an upper bearing frame and a lower bearing frame, in which a plurality of straightening rollers and support rollers are mounted like a cassette and interchangeably arranged.

In the processing of flat material, such as flat steel or non-ferrous metal sheet, the required manufacturing steps usually include straightening to produce flat and low-stress (steel) strips or sheets. When straightening the material is bent several times with or without train in leveling machines using straightening rollers to produce the desired straightening effect. When straightening flat products, the product is usually passed between a group of upper and lower straightening rollers and plastically deformed by appropriate adjustment of the upper and lower straightening rollers. In order to achieve the respective desired plastic deformation, it requires a bending radius, which is different depending on the strip thickness or sheet thickness and yield strength of the product or material to be straightened or can be and which is realized in each case by means of suitable roll diameter, roller pitches and roller immersion depths. In this case, the smaller the roll diameter is formed, the greater the possible plastic deformation of the product or material. However, in a straightening machine not arbitrarily small roles can be used, as on the one hand, the bending forces may not be recorded and on the other hand, the required process moments for displaying the forming work may not be made available with the help of small straightening rollers due to excessive mechanical stress , This is the reason that for a given roll diameter, given roll pitch, which is the axial distance between two adjacent rolls, and given depth of immersion and the given or desired plastic deformation in each case only a defined product spectrum or material spectrum can be directed, which of the respective product thickness and its yield strength depends. In order to make straightening machines relatively flexible and adaptable to different products, it is known from the prior art to use straightening machines with exchangeable cassettes and different roll diameters.

Such a generic straightening machine is from the EP 1 584 384 B1 known. This document discloses a straightening machine comprising a motorized drive unit and a main gearbox connected therewith in drive, wherein exchangeable exchangeable cassettes can be connected to the main gearbox in their entirety, which exchangeable cassettes each have straightening rollers with different sized diameters and different straightening roller numbers. In addition, the exchangeable removable cassette with straightening rollers, which have a small straightening roller diameter, a single, integrated in the removable cassette intermediate gear, which is coupled to the main gear of the straightening machine. Replacement cassettes are used, each of which is equipped with a fixed set of straightening and support roller combinations, tool set. It is in each case the entirety of an upper bearing frame or a lower bearing frame existing straightening rollers and support rollers replaced. In this respect, it is known from the prior art to replace a complete set of straightening rollers and support rollers by means of a removable cassette.

An alternative to changing a complete set by means of a removable cassette is in the WO 2008/145355 A1 described. This document discloses the change of each individual straightening rollers of a leveler. If necessary, upper and lower pairs can be changed together.

Furthermore, today's sheet metal producers are confronted with the requirement that a large spectrum of metal sheets or strips of very different dimensions and strengths, in small as well as large batch sizes, have to be manufactured. As a result, the straightening machines required for this have to cover a large straightening range. In order to cover large straightening area, differently sized straightening roll diameters and / or different sized divisions must be used in the straightening machines in order to achieve optimum straightening results. This can be basically with the exchange cassette straightening machines, such as those in the EP 1 584 384 A1 are described, each with fixed predetermined tool sets, ie, with fixed predetermined combinations of straightening rollers and support rollers, equipped, reach, but without the flexibility appropriate for today's production conditions. In order to be able to judge a large range of dimensions and strengths with a straightening machine, however, a large number of different exchangeable cassette sets must be kept ready. If necessary, even more straightening machines must be provided in order to be able to optimally adapt the requirements to a respective product to be straightened, ie to thin, medium or thick sheets.

Therefore, there is still the need existing straightening machines with respect to the thus realizable straightening, ie the so processing product dimensions, and in particular to allow a cost-effective and rapid machine conversion.

The invention is therefore based on the object to provide a solution that provides an improved adaptability of a leveler to different judge requirements and Richtbereiche.

In a straightening machine of the type described in more detail, this object is achieved in that the entirety of each arranged in the upper and / or lower bearing frame straightening rollers and support rollers is divided into a plurality of modularly matched and each designed in the manner of an exchangeable removable cassette straightening roller segments, wherein each straightening roller segment comprises at least one layer of support rollers and at least one associated straightening roller.

Advantageous developments and expedient embodiments of the invention are the subject of the dependent claims.

The invention therefore proposes to provide a modular straightening tool (modular straightening roller segment) within a lower and / or upper cassette or an upper and / or lower bearing frame in order to ensure cost-effective and rapid machine conversion for expanding or adapting the straightening area of the straightening machine. In this case, the respective modular straightening tool or the respective tool module consists of a modular segment which is designed in the manner of an exchangeable exchangeable cassette, wherein each straightening roller segment has at least one layer of support rollers and at least one associated straightening roller. The respective straightening roller segments thus form modular segments which each form a tool module, the upper and / or lower bearing frame representing the tool carrier. Thus, it is possible to provide the upper and / or the lower bearing frame with a variable number of modular straightening roll segments or tool modules alternately and interchangeably, each consisting of straightening roller and back-up roller combinations with different diameters, pitches, roll materials and each for optimum adaptation to each to be performed Richt task, in particular the respectively to be addressed material selected. It is possible to replace only individual modular straightening roller segments or even all straightening roller segments of a bearing frame and thereby convert the straightening machine accordingly.

Due to the modular design, it is also possible to realize a large variety of different straightening roller segment combinations in a straightening machine and thereby to provide a significantly improved adaptability of the straightening machine to different Richter requirements and Richtbereiche. In this case, it is also possible to significantly expand the entire straightening range of the straightening machine by suitable selection of the respective straightening roller segments with regard to the associated selection of a gradation of straightening roller diameters and the division thus realized. It is also possible, by means of a skilful selection of straightening rollers actively involved in the straightening process, to equip a straightening machine adapted to the respectively desired technological requirements of the straightening process, thereby improving straightening quality. Also, in cases where only a straightening roller of straightening machine equipment is worn, only the straightening roller having this module can be replaced. It is then no longer necessary to replace the complete set straightening complete set of straightening machine.

The loading of a straightening machine can therefore depend on the sheet metal parameters and tool load history, i. the straightening roller load history, done. Individual straightening rolls of a straightening machine are subjected to varying degrees of stress during the straightening process, so that their service lives are different. Here then the particularly heavily loaded tool can be replaced. However, it is also possible within the scope of a changeover routine to carry out a cyclical exchange of different, similarly constructed modules to a specific position within the upper and / or lower bearing frame of the straightening machine.

Another advantage of the invention is that now only smaller in terms of weight units have to be replaced in a straightening machine. This makes it possible to work with crane capacities which have a lower load capacity than those which would be necessary if a complete set of straightening rollers comprising a straightening machine had to be replaced as a whole. Likewise, the space required for a single modular straightening roller segment is less than for a complete set of straightening rollers. The low weight and the smaller dimension of a modular straightening roller segment compared to a complete set of straightening rollers and / or support rollers now also makes it possible to set up tool centers or machining centers, if necessary.

• – Reduzierung der Transportgewichte und Abmessungen der Werkzeugmodule;
• – Optimale Konfiguration der Richtwerkzeuges an das zu richtende Produkt;
• – Erweiterbare und an Veränderungen des mit der Richtmaschine zu bearbeitenden Produktionsprogrammes anpassbare Richtwalzen/Stützwalzen-Kombinationen;
• – Verringerung der Investitionskosten gegenüber einer Kassettenlösungen mit einem Wechsel von Komplettsätzen;
• – Minimierung der Rüstzeiten durch den modularen Aufbau der Richt-/Stützrolleneinheiten;
• – Durch zyklischen Wechsel der Richt-/Stützrolleneinheiten innerhalb der Kassette kann die Lebensdauer/Standzeit der Werkzeuge vereinheitlicht werden.

Overall, the following advantages can be achieved with the invention:

• - Reduction of the transport weights and dimensions of the tool modules;
• - Optimum configuration of the straightening tool to the product to be straightened;
• - Expandable straightening rollers / back-up roller combinations adaptable to changes in the production program to be processed by the straightening machine;
• - Reduction of investment costs compared to cassette solutions with a change of complete sets;
• - Minimization of set-up times due to the modular design of straightening / support roller units;
• - By cyclically changing the straightening / supporting roller units within the cassette, the service life / tool life of the tools can be standardized.

In an embodiment, the invention provides that the modularly matched straightening roller segments are formed individually or in groups interchangeable and arranged in the upper and / or lower bearing frame. This ensures that a complete, at least comprehensive flexibility is ensured with regard to the positioning of individual straightening roller segments.

In order to equip the leveler particularly flexible interchangeable with straightening rollers at different positions, it is advantageous according to the invention, if both the totality of arranged in the upper bearing frame and the entirety of the arranged in the lower bearing frame straightening rollers and support rollers in several modular arranged and matched in the manner of an exchangeable removable cassette straightening roller segments is arranged.

In order to be able to provide a good adaptation to different Richter requirements and straightening ranges, it is furthermore expedient that the entirety of the straightening rollers and support rollers arranged in each case in the upper and / or the lower bearing frame be divided into identical or differently dimensioned types of modular straightening roller segments and / or exchangeable cassettes is what the invention also provides.

It is also useful to use different types of modular straightening roller segments, so that the invention further provides that the entirety of each arranged in the upper and / or lower bearing frame straightening rollers and support rollers with respect to the respective straightening and / or support roller diameter and / or respect the respective straightening roller and / or support roller number is divided differently with straightening rollers and / or support rollers equipped types of modular straightening roller segments and / or exchangeable cassettes.

It is particularly advantageous if the individual modular straightening roller segments each form an exchangeable cartridge and are each matched to one another in such a way that, in their entirety, they form an exchangeable cartridge system formed of mutually replaceable exchangeable cartridges. The invention is therefore further distinguished by the fact that the individual modular straightening roller segments individually or in groups form interchangeable exchangeable cassettes of an exchangeable cassette system.

Such an exchangeable cassette system can comprise differently dimensioned types of modular straightening roller segments and / or exchangeable cassettes, which the invention also provides.

In this case, the exchangeable cassette system can comprise different types of modular straightening roller segments and / or exchangeable cassettes with different straightening roller and / or support roller diameters and / or with respect to the respective straightening roller and / or support roller number with straightening rollers and / or support rollers, whereby the invention continues to be distinguished.

In order to be able to record operating data and wear conditions and to be able to determine and determine service lives and necessary change cycles of straightening rollers, the invention finally also provides that they have means for detecting and / or storing material parameters of the material to be straightened and / or means for detecting and / or storing process parameters acting on each modular straightening roll segment during a straightening process and / or state parameters that adjust themselves after a straightening process on each modular straightening roll segment.

The modularly matched straightening roller segments are each exchangeable, complex elements of the straightening machine, each of which forms a closed functional unit and thus a "module straightening roller segment".

The invention is explained in more detail below by way of example with reference to the drawing.

This shows in

1 in a schematic side view of the structure of a straightening machine according to the invention of modular straightening roller segments,

1a in a schematic side view of a modular straightening roller segment viewed in side view in the machining direction of the straightening machine,

2 Embodiments of possible tool conversions by replacement of modular straightening roller segments,

3 a schematic representation of different arrangements of different straightening roller segment combinations in the lower bearing frame,

4 a schematic representation of various combinations of modular straightening roller segments in the upper bearing frame,

5 a flowchart for the detection and use of determined process parameters and / or state parameters and

6 a schematic representation of the arrangement of a leveler according to the invention with associated tool processing station.

The 1 shows a total with 1 designated leveler, which is an upper bearing frame 2 and a lower bearing frame 3 includes. In the upper storage frame 2 are three modularly matched and trained in the manner of an exchangeable removable cassette straightening roller segments 4 . 5 and 6 arranged on which the entirety of the upper bearing frame 2 arranged straightening rollers 7 and support rollers 8th are divided. The three modular straightening roller segments 4 . 5 . 6 are uniform in this embodiment and each have both the same number of straightening rollers 7 and support rollers 8th as well as those with identical diameters. In the modular straightening roll segment 4 is the straightening roller 2 ' , in straightening roll segment 5 the straightening roller 4 ' and in the straightening roll segment 6 the straightening roller 6 ' arranged.

In the lower bearing frame 3 are four modularly matched and trained in the manner of an exchangeable removable cassette straightening roller segments 9 . 10 . 11 and 12 arranged. In turn, this distributes the entirety of the in the lower bearing frame 3 arranged straightening rollers 7 and back-up rolls 8th , Also in this case, the straightening rollers 7 the respective modular straightening roller segments 9 - 12 the same diameter and are equal in number in a respective modular straightening roll segment 9 - 12 educated. In the same way, the modular straightening roller segments 9 - 12 with support rollers 8th Equipped with the same diameters and the same number. Should now a change in single or multiple straightening rollers 7 and support rollers 8th done, so can the individual modules 4 - 6 and 9 - 12 be replaced and replaced independently. This allows the straightener 1 to adapt to different judicial requirements.

The 1a shows a schematic side view of a modular lower straightening roller segment 9 in side view in the machining direction 40 considered. It can be seen as a straightening roller 7 of several support rollers 8th is supported.

The 2 shows a lower bearing frame 3 in which the modular straightening roller segments 10 and 11 according to the embodiment according to 1 through four half-width straightening roll segments 13 - 16 have been replaced. Also the modular straightening roller segments 13 - 16 are identical to each other, have in relation to the straightening roller segments 9 and 12 but much smaller roll and roll diameter.

In the left part of 2 is now shown in phantom that individual modules, here examples of the modules 12 and 15 , can be replaced as part of a tool conversion. But it can also be replaced several straightening roller segments in groups, as shown in the middle picture of the 2 is shown in dash-dotted representation. The removed straightening roller segments 13 - 16 are to be installed by straightening roller segments 17 - 19 replaced. The right part of the image 2 shows a cyclic exchange of individual modular straightening roller segments 13 - 16 , Here is the straightening roll segment 13 taken, the straightening roller segments 14 - 16 then slip in the lower bearing frame 3 to close the through the removed straightening roller segment 13 resulting gap up to the straightening roll segment 9 approach. Thereafter, in the on the side of the straightening roll segment 12 then resulting gap the straightening roll segment 13 used again. In this way, the individual straightening roller segments can be 13 - 16 bring to positions that are exposed to different strains mechanical strains when directing a guided through the straightener sheet metal material. This allows a uniform wear of the straightening rollers of the straightening roller segments 13 - 16 achieve.

The 3 shows by way of example several possible combinations of different modular straightening roller segments 9 - 21 in their arrangement in the lower bearing frame 3 , In an analogous way, the 4 a schematic representation of different arrangements and combinations of modular straightening roller segments 4 - 6 such as 22 - 30 in the upper bearing frame 2 ,

From the 3 and 4 It can be seen that not only different sized rollers and / or rollers can be combined as desired, but also the pitches (center distances) are variable depending on the pairing.

In a manner not shown, the individual straightening roll segments can also be moved vertically upwards or downwards with respect to the sheet metal material passing through the straightening machine so that they are not in continuous mechanical contact with the sheet material to be processed, as is fundamentally known from sheet metal working by straightening machines , In this respect, the active number of straightening rollers can be used 7 vary without having to replace individual modular straightening roll segments.

In the 5 is shown schematically how the processing of the detected state parameter "straightening rollers actual diameter" and the detected process parameters "sheet metal data acquisition: temperature, strength, thickness" can be used to help with the help of stored data and a computer unit and a storage unit automated assistance and display whether on the one hand the correct tool combination, ie the required in the current case for the achievement of the desired Richtergebnisses combination of modular straightening rolls, set and is present and whether they also have the necessary condition parameters, ie, for example, sufficient straightening roll diameter. Before the metal-straightening process then starts, this is checked and in the event that the existing combination of modular straightening roll segments should be found to be insufficient or accurate, a tool change or exchange of individual modular straightening roll segments is made. Only then does the sheet metal straightening process begin.

The 6 shows a schematic representation of the arrangement of a leveler according to the invention 1 with associated straightening roller drive 31 , which is a main engine 32 and a master gearbox 33 as well as drive trains 34 includes. On the straightening roller drive 31 opposite side is a tool processing station 35 arranged a grinder 36 , a reserve of modular straightening roller segments with straightening roller sets 37 as well as a tool shop with crane runway 38 includes.

The modular straightening roller segments 4 - 6 such as 9 - 30 are related to in the machining direction 40 a measured width of a sheet to be machined 41 of the lower bearing frame 3 or the frame width 42 of the upper bearing frame 2 depending on their location in the upper bearing frame 2 or in the lower bearing frame 3 in terms of their respective width 43 . 44 so modularly matched to each other, that at one by the respective width 43 . 44 or a multiple of a respective width 43 . 44 defined position can be placed in each case a modular straightening roller segment or more modular straightening roller segments. It is of course for the cases in which a certain position should be released, of course, there to use appropriate blocks, not with straightening rollers 7 are equipped.

LIST OF REFERENCE NUMBERS

1

 straightener

2

 bearing frame

3

 bearing frame

4-6

 Straightening roller segment

7

 straightening roll

8th

 supporting role

9-30

 Straightening roll segment

31

 Straightening roll drive

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1584384 B1 [0003]
• WO 2008/145355 A1 [0004]
• EP 1584384 A1 [0005]

Claims (9)

Straightening machine ( 1 ) with associated straightening roller drive ( 31 ), comprising an upper bearing frame ( 2 ) and a lower bearing frame ( 3 ), in which a plurality of straightening rollers ( 7 ) and support rollers ( 8th ) are arranged like a cassette and interchangeably arranged, characterized in that the entirety of each in the upper and / or the lower bearing frame ( 2 . 3 ) arranged straightening rollers ( 7 ) and support rollers ( 8th ) on a plurality of modularly matched and each formed in the manner of an exchangeable removable cassette straightening roller segments ( 4 to 6 . 9 to 30 ), wherein each straightening roller segment ( 4 - 6 . 9 - 30 ) at least one layer of support rollers ( 8th ) and at least one associated straightening roller ( 7 ). Straightening machine ( 1 ) according to claim 1, characterized in that the modularly matched straightening roller segments ( 4 - 6 . 9 - 30 ) formed individually or in groups interchangeable and in the upper and / or the lower bearing frame ( 2 . 3 ) are arranged. Straightening machine ( 1 ) according to claim 1 or 2, characterized in that both the entirety of the in the upper bearing frame ( 2 ) as well as the entirety of the in the lower storage frame ( 3 ) arranged straightening rollers ( 7 ) and support rollers ( 8th ) in several in each case modularly matched and designed in the manner of an exchangeable removable cassette straightening roller segments ( 4 - 6 . 9 - 30 ) is arranged. Straightening machine ( 1 ) according to one of the preceding claims, characterized in that the entirety of each in the upper and / or the lower bearing frame ( 2 . 3 ) arranged straightening rollers ( 7 ) and support rollers ( 8th ) to identical or different sized types of modular straightening roller segments ( 4 - 6 . 9 - 30 ) and / or removable cassettes is divided. Straightening machine ( 1 ) according to one of the preceding claims, characterized in that the entirety of each in the upper and / or the lower bearing frame ( 2 . 3 ) arranged straightening rollers ( 7 ) and support rollers ( 8th ) with respect to the respective straightening roller and / or support roller diameter and / or with respect to the respective straightening roller and / or support roller number different with straightening rollers ( 7 ) and / or support rollers ( 8th ) equipped types of modular straightening roller segments ( 4 - 6 . 9 - 30 ) and / or removable cassettes is divided. Straightening machine ( 1 ) according to one of the preceding claims, characterized in that the individual modular straightening roller segments ( 4 - 6 . 9 - 30 ) individually or in groups form interchangeable exchangeable cassettes of a removable cassette system. Straightening machine ( 1 ) according to claim 6, characterized in that the exchangeable cassette system has differently dimensioned types of modular straightening roller segments ( 4 - 6 . 9 - 30 ) and / or exchangeable cassettes. Straightening machine ( 1 ) according to claim 6 or 7, characterized in that the interchangeable cassette system different with respect to the respective straightening roller and / or support roller diameter and / or with respect to the respective straightening roller and / or support roller number with straightening rollers ( 7 ) and / or support rollers ( 8th ) equipped types of modular straightening roller segments ( 4 - 6 . 9 - 30 ) and / or exchangeable cassettes. Straightening machine ( 1 ) according to one of the preceding claims, characterized in that it comprises means for detecting and / or storing material parameters of the material to be straightened and / or means for detecting and / or storing during a straightening process on each modular straightening roll segment ( 4 - 6 . 9 - 30 ) and / or after a straightening process on each modular straightening roll segment (FIG. 4 - 6 . 9 - 30 ) has adjusting state parameters.

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