Device and method for coiling strip-shaped rolling stock on a mandrel or a sleeve of a coiling device

Abstract

The present invention relates to a device (1) for winding strip-shaped rolled material (28) onto a mandrel or a sleeve of a reeling device, comprising: a base frame (4) with two adjustable guide arms (5, 6) forming a mouth-shaped opening; a plurality of guide rollers (15, 16) arranged on the base frame (4) and the guide arms (5, 6); a belt (19) stretched circumferentially around the plurality of guide rollers (15, 16); an adjustable tension roller (20) by means of which the tension of the belt (19) can be changed; wherein at least a second adjustable tension roller (21) by means of which the tension of the belt (19) can be additionally changed.

Description

[0001] The present invention relates to a device for winding strip-shaped rolled material onto a mandrel or a sleeve of a reeling device and to a method for winding strip-shaped rolled material onto a mandrel or a sleeve of a reeling device.

[0002] Such devices are known from the prior art under the name belt winders.

[0003] EP 0 707 904 A1 describes a belt winder for winding cold-rolled strip, in which an endless belt circulating around deflection pulleys partially encircles a mandrel and thus the windings resting on it. The belt has no drive and is driven by frictional contact with the mandrel. The belt and deflection pulleys are mounted on pivotable frame components, which can be swung into position for winding and swung away afterward. Rubber belts with a particularly abrasion-resistant surface are preferably used in cold-rolled strip winders.

[0004] From GB 794,783 A, a belt winder or belt winder for strip-shaped rolled material is known, which is guided from a rolling mill to a drum or mandrel and wound there. This belt winder has an endless rubber belt guided over several belt rollers, which can be pressed against the mandrel in a partial circumferential area and, during winding, engages the rolled material to be wound by friction. In this known device, the belt is guided over a total of six belt rollers. The device as a whole is movable, so that it can be moved from a rest position to a working position in which the mandrel rests against the belt at its outer circumference and exerts inward force on it, thereby tensioning the belt. Two of the belt rollers are pivotally mounted so that they rest against the circumference of the mandrel in the working position. Another belt roller is linearly movable via a guide in a rail.When the device is moved into the working position towards the mandrel, the mandrel presses against the belt and tensions it. This causes the two pivoting rollers on the outside to pivot against the mandrel, and the linearly movable belt roll is moved towards the mandrel by the tension of the belt against the force of a spring on the opposite side of the mandrel. The rolled material can then be wound onto the mandrel. The belt tension is thus achieved by pressing the belt against the mandrel. No additional tensioning of the belt in the working position is provided.

[0005] Winding strip-shaped rolled material can be done, for example, onto a mandrel or a spool of a reeling device, whereby the diameter of the mandrel or spool can vary over a wide range. A disadvantage of currently known belt winders is that they can only accommodate a limited mandrel diameter range. This means that the winding device can only be used for specific mandrel and / or spool types with defined diameter ranges. Therefore, if the specified diameter range is exceeded or not met, a different device must be used, or the device must undergo a costly rebuild. It is obvious that both of these alternatives involve considerable time and expense. Description of the invention

[0006] The object of the present invention is therefore to provide a device for winding strip-shaped rolled material onto a mandrel or a sleeve of a reeling device that is improved compared to the prior art, in particular to provide such a device in which strip-shaped rolled material can be wound onto and wound onto different mandrels or sleeves with different diameters in a larger diameter range by means of the same device.

[0007] The solution to this problem is provided by a device for winding strip-shaped rolled material onto a mandrel or a sleeve of a reeling device with the features of claim 1.

[0008] According to the invention, the device comprises a base frame with two adjustable guide arms forming a mouth-shaped opening; a plurality of guide rollers arranged on the base frame and the guide arms; a belt stretched circumferentially around the plurality of guide rollers; an adjustable tension roller by means of which the tension of the belt can be changed; and at least one second adjustable tension roller by means of which the tension of the belt can be additionally changed.

[0009] According to the invention, the device comprises at least one second adjustable tensioning roller, via which the tension of the belt can be changed in addition to the tension set by the first tensioning roller. In other words, the device according to the invention comprises a first adjustable tensioning roller, via which the tension at a first point of application of the belt can be changed, and at least one second adjustable tensioning roller, via which the tension of the belt at a second point of application of the same belt can be changed, wherein the second point of application is spaced circumferentially apart from the first point of application. This ensures that the belt can be tensioned sufficiently continuously at all times, even with large diameter changes from mandrel to sleeve. A suitably designed device thus allows, for example, the coverage of a large diameter range of, e.g.,Mandrel 508 mm on sleeve 610 mm on sleeve 725 mm, thus enabling a single device to handle a wide variety of strip-shaped materials. Thanks to the design according to the invention, the device can be used for a wide range of machine types with different winding tasks, making the device design reusable. This advantageously minimizes the design effort and reduces the number of variants for different size ranges. Overall, the device according to the invention can therefore be used more universally.

[0010] The device according to the invention can also be designed such that it comprises two or more belts running parallel to each other, each of which is then tensioned circumferentially via separate guide rollers. The tension of each further belt is adjusted according to the same principle, so that the device then comprises a further first and a further second adjustable tension roller. It is important to note, however, that in such a design the working pressure of each first adjustable tension roller and each second adjustable tension roller must be the same.

[0011] According to an advantageous embodiment, it is generally possible for only one of the two guide arms to be adjustable, so that the device then comprises an adjustable and a fixed guide arm, which form the mouth-shaped opening.

[0012] Further advantageous embodiments of the invention are specified in the dependent claims. The features listed individually in the dependent claims can be combined in a technologically meaningful manner and can define further embodiments of the invention. Furthermore, the features specified in the claims are specified and explained in more detail in the description, which also presents further preferred embodiments of the invention.

[0013] The second adjustable tensioning roller can preferably be designed as a linearly displaceable tensioning roller or as a pivoting tensioning roller. A linearly displaceable tensioning roller has the advantage of being easier to design. Its linear design allows for significantly greater length compensation, thus enabling improved belt length adjustment. A pivoting tensioning roller, on the other hand, is particularly advantageous when space constraints prevent linear adjustment. Depending on the design, the second adjustable tensioning roller can be positioned either inside or outside the belt circumference on the base frame of the device.

[0014] In an alternative advantageous embodiment, the first and second adjustable tension rollers can be positioned within the belt circumference and adjusted via a hydraulically, pneumatically, or electrically driven actuator, preferably a hydraulic tension cylinder, arranged on the base frame. In such an embodiment, the actuators are thus implemented within the installation space of the base frame, thereby reducing the overall installation space of such a device. In this context, it can also be advantageous with regard to installation space if one of the guide rollers is arranged between the two adjustable tension rollers.

[0015] Furthermore, it can be advantageous if the first or second, or more preferably, if both tension rollers can assume not only two positions but also further intermediate positions. Preferably, in this context, the hydraulically, pneumatically, or electromechanically driven actuators of the tension rollers are configured to allow stepless adjustment. For this purpose, the actuators of the tension rollers can preferably be equipped with pressure sensors so that various positions / intermediate positions can be reached depending on the required pressure.

[0016] According to a further advantageous embodiment, the device has a horizontal axis (D) about which the base frame is pivotably arranged, particularly preferably within a range of ± 45° relative to the horizontal axis (D). By pivoting the base frame, the strip-shaped rolled material can be fed to the reel from different directions, thus enabling the device to operate more efficiently. This allows for a total of four different winding configurations, so that the strip-shaped rolled material can be fed and wound above a mandrel or sleeve axis, fed above a mandrel or sleeve axis and wound below this axis, fed and wound below a mandrel or sleeve axis, or fed below a mandrel or sleeve axis and wound above this axis.

[0017] The horizontal axis (D) can advantageously form part of a movable support frame on which the base frame is arranged. The support frame, in turn, can preferably be moved on rails, and for full automation, a sliding unit can further be provided by means of which the support frame can be moved fully automatically along a horizontal longitudinal axis (A). According to such an embodiment, the device can thus, on the one hand, move linearly in a horizontal plane and, on the other hand, pivot about the horizontal axis (D) arranged perpendicular to it. Preferably, in this context, the support frame comprises a hydraulically, pneumatically, or electrically driven pivot cylinder, which is connected to the base frame and pivotable about it.

[0018] As previously explained, the device comprises two adjustable guide arms that form the mouth-shaped opening. Each guide arm can be controlled by a hydraulically, pneumatically, or electrically driven actuator, and each actuator is equipped with a position sensor that enables stepless adjustment of the two guide arms. The actuators, preferably hydraulic cylinders, equipped with position sensors allow the guide arms to be individually controlled and monitored, and their respective positions can optionally be transmitted to an automation system.

[0019] Furthermore, it can be advantageous if at least one of the guide arms, but preferably both guide arms, includes a pivotably designed deflector at its distal end, wherein this deflector can be actuated by a hydraulically, pneumatically, or electromechanically designed actuator, preferably a hydraulic actuating cylinder, arranged on the respective guide arm. The deflectors can further optimize the band guidance around the mandrel or sleeve.

[0020] In a further embodiment, it can be advantageous if the guide rollers arranged at the distal end of each guide arm are formed from a cylindrical base body, whereas the remaining guide rollers of the device are formed from a cylindrical base body and conically shaped ends. In such a device, all guide rollers, except for those furthest forward on the guide arms, have a conical design as defined in the present application, which allows for improved centering of the belt due to higher tension in the center.

[0021] According to a further aspect, the present invention also relates to a method for winding strip-shaped rolled material onto a mandrel or a sleeve of a reeling device with the device according to the invention, wherein in a step a) the device is first brought from a rest position in which the mouth-shaped opening is completely open to the mandrel or the sleeve, such that the belt wraps around at least a part of the circumference of the mandrel or the sleeve, then in a further step b) both adjustable guide arms are moved from their rest position into a working position, and subsequently in a step c) the strip-shaped rolled material is wound onto the mandrel.

[0022] The rest position is characterized by the fact that the guide arms of the belt winder are open and the base frame has retracted from the mandrel or sleeve via its movable support frame. The two adjustable tension rollers are partially immersed in the belt, for example, with a pressure of 20 to 30 bar.

[0023] In the subsequent step a), the device moves into a working position in which the two guide arms are open and the base frame is pivoted or moved towards the mandrel or sleeve. The two adjustable tension rollers are retracted as soon as the belt begins to wrap around the mandrel or sleeve. To move into the working position, the two adjustable guide arms are closed synchronously, and the two adjustable tension rollers are retracted even further. Once the guide arms are closed, the two adjustable tension rollers are switched to operating pressure, which is preferably 50 bar to 150 bar. In a more preferred embodiment, the operating pressure can be 70 bar to 140 bar, and even more preferably 80 bar to 110 bar.

[0024] According to an advantageous embodiment of the process, the strip-shaped rolled material can i) fed and wound above a mandrel or sleeve axis; ii) fed above a mandrel or sleeve axis and wound below this mandrel or sleeve axis; iii) fed and wound below a mandrel or sleeve axis; or iv) fed below a mandrel or sleeve axis and wound above this mandrel or sleeve axis.

[0025] In the case of this winding position according to i), the upper guide arm can remain open or close only slightly to better capture the strip-shaped rolled material. The lower guide arm would pivot into the "mandrel" or "sleeve" position. This can be monitored by position sensors in the actuators. Additionally, the base frame is pivoted into an optimal position for winding.

[0026] In winding position ii), the lower guide arm can remain open or close only slightly to better capture the strip-shaped rolled material. The upper guide arm would pivot into the "mandrel" or "sleeve" position. This can be monitored by position sensors in the actuators. Additionally, the base frame is pivoted into an optimal position for winding.

[0027] During winding position iii), the lower guide arm can remain open or close only slightly to better capture the strip-shaped rolled material. The upper guide arm would pivot into the "mandrel" or "sleeve" position. This can be monitored by position sensors in the actuators. Additionally, the base frame is pivoted into an optimal position for winding.

[0028] In the winding position according to iv), the upper guide arm can remain open or close only slightly to better capture the strip-shaped rolled material. The lower guide arm would pivot into the "mandrel" or "sleeve" position. This can be monitored by position sensors in the actuators. Additionally, the base frame is pivoted into an optimal position for winding.

[0029] The different winding positions demonstrate that the device can be used regardless of the rolling direction. This means that the belt can be removed from either the operator or drive side.

[0030] According to an advantageous embodiment, the base frame is therefore moved into a specific working position about its horizontal axis (D) before step c) depending on the winding situation i) to iv), wherein the movement of the two adjustable guide arms according to step b) is particularly preferably monitored by displacement sensors. Character designation

[0031] The invention and its technical context are explained in more detail below with reference to the figures. It should be noted that the invention is not intended to be limited by the exemplary embodiments shown. In particular, unless explicitly stated otherwise, it is also possible to extract partial aspects of the situations explained in the figures and combine them with other components and findings from the present description and / or figures. It should be noted in particular that the figures, and especially the depicted proportions, are only schematic. The same reference numerals denote the same objects, so that explanations from other figures can be consulted as needed. The figures show: Figure 1 shows a variant embodiment of the device according to the invention in a side view in the rest position; Figure 2 shows a partial perspective view of the device in Figure 1The device shown, Figure 3 a variant embodiment of a conical guide roller, Figure 4 a sectional view of the in Figure 1 The device shown in Figure 5 is a first winding situation using the device shown in Figure 5. Figure 1 The device shown in Figure 6 represents a second winding situation using the device shown in Figure 6. Figure 1 The device shown in Figure 7 represents a third winding situation using the device shown in Figure 7. Figure 1 the device shown, and Figure 8 a fourth winding situation using the in Figure 1 device shown.

[0032] First, attention will be drawn to the Figure 1Reference is made to a possible embodiment of the device 1 according to the invention for winding strip-shaped rolled material onto a mandrel 2 or a sleeve 3 of a reel (not shown). The device 1 initially comprises a base frame 4, which has a lower adjustable guide arm 5 and an upper adjustable guide arm 6. As shown in the drawing, both guide arms 5, 6 form a mouth-shaped opening and can be individually controlled via hydraulically controlled actuating cylinders 7, 8. As can be seen in particular from the Figure 2 As can be seen, the two actuating cylinders 7, 8 are installed in the base frame 4 and each has a position sensor 9, 10 at their end opposite the guide arms 5, 6, which enables stepless control.

[0033] Furthermore, in the embodiment shown here, the guide arms 5, 6 each have a pivotably designed deflector 11, 12 at their distal ends. These can also be individually controlled via hydraulically controlled actuators 13, 14 ( Figure 4 ), which are installed in the guide arms 5, 6.

[0034] Based on the Figure 1 It is further evident that the device 1 comprises a plurality of guide rollers 15, 16 arranged on the base frame 4 and the guide arms 5, 6. The guide rollers 16, which are arranged at the distal ends of each guide arm 5, 6, consist solely of a cylindrical base body 17, whereas the remaining guide rollers 15 are formed from a cylindrical base body 17 and conically shaped ends 18. A variant embodiment of a conical guide roller 15 is shown in Figure 3 depicted.

[0035] A belt 19 is stretched around the majority of the guide rollers 15, 16. This belt can be made, for example, of an endless woven polyester with a polyurethane coating. The belt 19 can also be made of another material, such as Kevlar.

[0036] According to the invention, the device 1 has a first adjustable tension roller 20, via which the tension at a first point of application of the belt 19 can be changed, and at least a second adjustable tension roller 21, via which the tension of the belt 19 at a second point of application of the belt 19 can be additionally changed, wherein the second point of application is spaced circumferentially from the first point of application.

[0037] In the present embodiment, the tension rollers 20, 21 are positioned within the belt circumference and are adjustable via hydraulic tension cylinders 22, 23, each arranged on the base frame 4. This can be seen from the Figure 2 , that a separate tensioning cylinder 22, 23 is provided for each of the two tensioning rollers 20 and for each of the two tensioning rollers 21. Furthermore, it can be seen from the Figure 1 as well as the Figure 2 It can be seen that one of the majority of the guide rollers 15 is arranged between the two adjustable tension rollers 20, 21.

[0038] As demonstrated by Figure 1As can be further seen, the base frame 4 is arranged on a movable support frame 24 of the device 1. This support frame has a truss structure 25 with a horizontal axis (D) about which the base frame 4 is pivotably arranged on the device 1, preferably within a range of ± 45° with respect to the horizontal axis (D). The support frame 24 is movable on rails 25 and includes a sliding unit 26, by means of which the support frame 24 can preferably be moved fully automatically along a horizontal longitudinal axis (A). Furthermore, the support frame 24 has a hydraulically operated swivel cylinder 27, which is connected to the base frame 4 and pivotable about it.

[0039] The following refers to the Figures 5 to 8 Reference is made to the different diapering positions of the in Figure 1 The device shown is 1.

[0040] In Figure 5A winding position is shown in which the strip-shaped rolled material 28 is fed above a mandrel or sleeve axis 29 and wound. The upper guide arm 6 can remain open to better capture the strip-shaped rolled material 28. The lower guide arm 5 is closed and is in the "mandrel" or "sleeve" position. The base frame 4 is pivoted into an optimal winding position.

[0041] Figure 6 Figure 1 shows a winding position in which the strip-shaped rolled material 28 is fed above the mandrel or sleeve axis 29 and wound below this mandrel or sleeve axis 29. The lower guide arm 5 remains essentially open or is only slightly closed to better capture the strip-shaped rolled material 28. The base frame 4 is also pivoted into an optimal position for winding.

[0042] In Figure 7A winding position is shown in which the strip-shaped rolled material 28 is fed below the mandrel or sleeve axis 29 and wound above it. In this position, the upper guide arm 6 is open. The lower guide arm 5 is closed and located in the "mandrel" or "sleeve" position. Here too, the base frame 4 is pivoted into an optimal winding position.

[0043] Finally, in Figure 8 A winding position is shown in which the strip-shaped rolled material 28 is fed below the mandrel or sleeve axis 29 and wound onto the coil. During this winding position, the lower guide arm 5 can remain open or only be slightly closed. The base frame 4 is pivoted into an optimal winding position. Reference symbol list

[0044] 1 Device 2 Mandrel 3 Sleeve 4 Base frame 5 Lower guide arm 6 Upper guide arm 7 Actuating cylinder 8 Actuating cylinder 9 Position sensor 10 Position sensor 11 Deflector 12 Deflector 13 Actuating cylinder 14 Actuating cylinder 15 Conical guide rollers 16 Cylindrical guide rollers 17 Base body 18 Conically formed ends 19 Belt 20 Tension roller 21 Tension roller 22 Tension cylinder 23 Tension cylinder 24 Support frame 25 Rails 26 Sliding unit 27 Swivel cylinder 28 Rolled material 29 Mandrel or sleeve axle

Claims

1. Device (1) for winding strip-shaped rolled material (28) onto a mandrel or sleeve of a reeling device, comprising: a base frame (4) with two adjustable guide arms (5, 6) forming a mouth-shaped opening; a plurality of guide rollers (15, 16) arranged on the base frame (4) and the guide arms (5, 6); a belt (19) stretched circumferentially around the plurality of guide rollers (15, 16); an adjustable tension roller (20) by means of which the tension of the belt (19) can be changed; characterized by at least one second adjustable tension roller (21) via which the tension of the belt (19) can be further changed.

2. Device (1) according to claim 1, characterized by the fact that the second adjustable tension roller (21) is designed as a linearly displaceable tension roller (21) or as a pivotable tension roller (21).

3. Device (1) according to claim 1, characterized by the fact thatthe first and the second adjustable tension roller (21) are positioned within the circumference of the belt and are adjustable via a hydraulically, pneumatically or electromechanically designed actuator (22, 23) arranged on the base frame (4), preferably a hydraulic tension cylinder (22, 23).

4. Device (1) according to claim 3, characterized by the fact that Between the two adjustable tension rollers (20, 21) one of the majority of the guide rollers (15) is arranged.

5. Device (1) according to any one of the preceding claims, characterized by the fact that this has a horizontal axis (D) about which the base frame (4) is pivotably arranged on the device (1), preferably in a range of ± 45° with respect to the horizontal axis (D).

6. Device (1) according to claim 5, characterized by the fact that the horizontal axis (D) forms part of a movable support frame (24) on which the base frame (4) is arranged.

7. Device (1) according to claim 6, characterized by the fact that the support frame (24) comprises a hydraulically, pneumatically or electromechanically designed actuator, preferably a swivel cylinder (27), which is connected to the base frame (4) and can be pivoted over it.

8. Device (1) according to any one of the preceding claims, characterized by the fact that the two adjustable guide arms (5, 6) can be controlled via a hydraulically, pneumatically or electromechanically designed actuator (7, 8), the actuator (7, 8) being equipped with a position sensor (9, 10) which enables stepless adjustment.

9. Device (1) according to any one of the preceding claims, characterized by the fact thatat least one of the adjustable guide arms (5, 6) comprises a pivotable deflector (11, 12) at its distal end, which can be controlled via a hydraulically, pneumatically or electromechanically designed actuator (13, 14) arranged on the guide arm (5, 6).

10. Device (1) according to any one of the preceding claims, characterized by the fact that Those guide rollers (16) which are arranged at the distal end of each guide arm (5, 6) are formed from a cylindrical base body (17), whereas the other guide rollers (15) of the device (1) are formed from a cylindrical base body (17) and conically formed ends (18).

11. Method for winding strip-shaped rolled material (28) onto a mandrel or a sleeve of a reeling device with a device (1) according to one of the preceding claims, wherein in a step a) the device is first brought from a rest position in which the mouth-shaped opening is fully open to the mandrel or the sleeve, such that the belt (19) wraps around at least a part of the circumference of the mandrel or the sleeve, then in a step b) the two adjustable guide arms (5, 6) are moved from their rest position into a working position, and subsequently in a step c) the strip-shaped rolled material (28) is wound onto the device.

12. Method according to claim 11, characterized by the fact thatthe strip-shaped rolled material (28) i) is fed and wound above a mandrel or sleeve axis (29); ii) is fed above a mandrel or sleeve axis (29) and wound below this mandrel or sleeve axis (29); iii) is fed and wound below a mandrel or sleeve axis (29); or iv) is fed below a mandrel or sleeve axis (29) and wound above this mandrel or sleeve axis (29).

13. Method according to claim 12, characterized by the fact that The base frame (4) is moved into a specific working position around its horizontal axis (D) before step c) depending on the winding situation according to i) to iv).

14. Method according to any one of the preceding claims 11 to 13, characterized by the fact that The movement of the two adjustable guide arms (5, 6) according to step b) is monitored via position sensors (9, 10).

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