A rolling device, segmented special-shaped copper strip production equipment and method

Abstract

The present invention discloses a rolling device, equipment and method for producing segmented special-shaped copper strips, the device comprising at least one group of roller assemblies; the roller assembly comprising a pair of rollers with parallel central axes; the outer circumference of the roller is a circumferential surface, the circumferential surface comprising a first pressure section for applying pressure to the special-shaped copper strip and a first groove section for accommodating the special-shaped copper strip to avoid the special-shaped copper strip from being compressed and deformed, the first pressure section and the first groove section are equal in number and arranged at intervals, the circumferential surface further comprises a second groove section and / or a second pressure section, the second groove section is connected to any first groove section, and the second pressure section is connected to any first pressure section; the produced segmented special-shaped copper strip has a flat section longer than the first pressure section and / or a special-shaped section longer than the first groove section, and the subsequently manufactured welding strip can satisfy the connection between battery cells in the same string and also the connection between battery cells in different strings.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic modules, and in particular to a calendering device, equipment and method for producing segmented special-shaped copper strips. Background Art

[0002] The welding ribbon is an important material in the welding process of photovoltaic modules. It is used to weld the cells in series on the surface of the cells. The quality of the welding ribbon will directly affect the current collection efficiency of the photovoltaic modules. With the development of the photovoltaic industry, the welding ribbon has also been improved. The improved welding ribbon includes a special-shaped section and a flat section. The special-shaped section is welded to the front of the cell, and its cross-section is a triangle or trapezoid with oblique side shapes to reflect light to the surface of the cell, while the flat section is easy to weld to the back of the cell.

[0003] Currently, a calendering device is usually used to produce the above-mentioned improved welding strips, but the welding strips produced by the current calendering device only have flat sections of a single size. Since the connection spacing of battery cells in different strings is larger than the spacing of battery cells in the same string, the welding strips produced by the current calendering device can only meet the series connection between battery cells in the same battery string, and cannot meet the connection between battery cells in different strings. Summary of the invention

[0004] The purpose of the present invention is to provide a calendering device, a segmented special-shaped copper strip production equipment and a method.

[0005] The technical solution of the present invention is: in the first aspect, a rolling device is provided, the device comprises at least one group of roller assemblies; the roller assembly comprises a pair of rollers with parallel central axes; the outer circumference of the roller is a circumferential surface, the circumferential surface comprises a first pressure section for applying pressure to the special-shaped copper strip and a first groove section for accommodating the special-shaped copper strip to prevent the special-shaped copper strip from being compressed and deformed, the first pressure section is equal to the first groove section in number and is arranged at intervals, the circumferential surface also comprises a second groove section and / or a second pressure section, the second groove section is connected to any of the first groove sections, the second pressure section is connected to any of the first pressure sections to press out a flat section with a length greater than that used for battery cells in the same string of batteries, so as to connect battery cells in different strings of batteries with larger spacing,

[0006] The length of the second pressure section in the circumferential direction of the roller is smaller than the length of the first pressure section in the circumferential direction of the roller, and the length of the second groove section in the circumferential direction of the roller is smaller than the length of the first groove section in the circumferential direction of the roller;

[0007] The segmented special-shaped copper strip produced by the device has a special-shaped section whose length is greater than that of the first groove section. The welding strip produced subsequently can satisfy the connection between battery cells in the same string and also the connection between battery cells in different strings.

[0008] In a preferred embodiment, the length of the second pressure section in the circumferential direction of the roller is smaller than the length of the first pressure section in the circumferential direction of the roller; the length of the second groove section in the circumferential direction of the roller is smaller than the length of the first groove section in the circumferential direction of the roller, so as to meet the length requirements while saving material usage.

[0009] In a preferred embodiment, the central axes of the pair of rollers are located on the same vertical plane, saving space occupied by the device.

[0010] In a preferred embodiment, the rolling roller includes a pressure roller member and a rotating shaft passing through the pressure roller member for driving the pressure roller member to rotate, the rotating shaft is arranged to coincide with the center axis of the pressure roller member, and the pressure roller member includes the circumferential surface; this ensures that a pair of rolling rollers operate normally and stably to avoid jamming.

[0011] In a preferred embodiment, a first gear is provided along the circumference of the rotating shaft surface, the first gear is meshed with a second gear, the circumference of the second gear is smaller than that of the first gear, and the second gear is connected to a driving component for driving it to rotate so as to drive the rotating shaft to rotate; by driving the second gear which is meshed with the first gear and has a circumference smaller than that of the first gear to drive the rotating shaft to rotate, it is more labor-saving.

[0012] In a preferred embodiment, the end of the rotating shaft is connected to a driving component that drives the rotating shaft to rotate around its central axis; the structure is simple, saving space and component costs.

[0013] In a preferred embodiment, the rotating shaft is connected to a limiting assembly, and the limiting assembly includes clamping wheels distributed on both sides of the rotating shaft, and the clamping wheels are connected to the end faces of the pressure roller member; the position of the pressure roller member is limited to prevent the pressure roller member from shaking due to excessive size and weight.

[0014] In a preferred embodiment, the device also includes a fixed frame and an adjusting mechanism installed on the fixed frame for adjusting the spacing between the pressure rollers; the adjusting mechanism includes a spring, a connecting member and an adjusting member; the adjusting member is passed through the fixed frame and is spirally connected to the fixed frame, and a spring arranged along the spacing adjustment direction is connected between the connecting member and the fixed frame, one end of the connecting member abuts against the end of the adjusting member, and the other end is connected to the rotating shaft, so as to facilitate the adjustment of the roller spacing to suit the production of special-shaped copper strips of different sizes.

[0015] In a second aspect, the present invention provides a segmented special-shaped copper strip production device, comprising a wire-paying device, a wire drawing device for drawing a copper substrate into a special-shaped copper strip or a pressing device for pressing a copper substrate into a special-shaped copper strip, and a rolling device as described in any one of the first aspects.

[0016] In a third aspect, the present invention provides a method for producing a segmented special-shaped copper strip, using the segmented special-shaped copper strip production equipment provided in the second aspect, the method comprising:

[0017] The pay-off device introduces the copper substrate into the wire drawing device or the pressing device to form a special-shaped copper strip.

[0018] The calendering device presses the special-shaped copper strip into a segmented special-shaped copper strip; the segmented special-shaped copper strip comprises special-shaped segments and flat segments which are arranged at intervals.

[0019] Compared with the prior art, the advantages of the present invention are as follows: providing a rolling device, a segmented special-shaped copper strip production equipment and a method, the device comprising at least one group of roller assemblies; the roller assembly comprising a pair of rollers with parallel central axes; the outer circumference of the roller is a circumferential surface, the circumferential surface comprising a first pressure section for applying pressure to the special-shaped copper strip and a first groove section for accommodating the special-shaped copper strip to prevent the special-shaped copper strip from being compressed and deformed, the first pressure section and the first groove section are equal in number and are arranged at intervals, the circumferential surface further comprises a second groove section and / or a second pressure section, the second groove section is connected to any first groove section, and the second pressure section is connected to any first pressure section; the roller assembly is used The special-shaped copper strip is pressed by a component, and a first pressure section and a first groove section are arranged at intervals, so that a segmented copper strip with alternating special-shaped sections and flat sections can be manufactured, and a second pressure section connected to any first pressure section and / or a second groove section connected to any first groove section is arranged. The produced segmented special-shaped copper strip has a flat section longer than the first pressure section or a special-shaped section longer than the first groove section, or has both a flat section longer than the first pressure section and a special-shaped section longer than the first groove section. The subsequently manufactured welding strip can satisfy the connection between the same string of battery cells and also the connection between different strings of battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the connection between the battery string and the welding ribbon;

[0022] Figure 2 A front view of a calendering device provided in Example 1 of the present invention;

[0023] Figure 3 A three-dimensional diagram of a pressing roller in a calendering device provided in Example 1 of the present invention;

[0024] Figure 4A three-dimensional diagram of a pressing roller in a calendering device provided in Example 2 of the present invention;

[0025] Figure 5 A three-dimensional diagram of a pressing roller in a calendering device provided in Example 3 of the present invention;

[0026] Figure 6 A cross-sectional view of a calendering device provided in Example 4 of the present invention;

[0027] Figure 7 A flow chart of a method for producing a segmented special-shaped copper strip provided in Example 5 of the present invention;

[0028] Among them: 100, calendering device; 1, battery string; 2, welding strip; 21, special-shaped section; 22, flat section; 3, roller; 31, roller member; 311, first pressure section; 312, first groove section; 313, second pressure section; 314, second groove section; 32, rotating shaft; 321, first gear; 4, second gear; 5, clamping wheel; 6, fixing frame; 7, spring; 8, connecting piece; 9, adjusting piece, 10, rotating motor. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] As described in the background technology, at least two cells are connected to form a cell string through a welding ribbon, and a solar cell usually has multiple connected cell strings, and the cell strings are also connected through welding ribbons. The welding ribbons currently used include shaped segments and flat segments. The shaped segments are welded on the front of the cell, and the flat segments are welded on the back of the cell. The connecting welding ribbons between the cell strings need to be made flat to facilitate the subsequent welding of the busbars. In order to facilitate the subsequent welding of the busbars, the length of the connecting welding ribbons between the cell strings needs to be greater than the length of the welding ribbons between the cell pieces in the same cell string. In the current welding ribbons, the shaped segments have the same length and the flat segments have the same length. For example, refer to Figure 1As shown, a battery string contains four battery cells 1, and a welding strip cycle includes a shaped segment 21 and a flat segment 22. The shaped segment 21 is welded to the front of the battery cell, and the flat segment 22 is welded to the back of the battery cell. Of course, due to process reasons, there is a transition portion between the flat segment 22 and the shaped segment 21, and the transition portion is shared by the flat segment 22 and the shaped segment 21. Since the battery string spacing is greater than the battery cell spacing in the same battery string, one welding strip cycle cannot meet the connection between battery strings. The current method is to cut out two welding strip cycles when connecting the battery string, that is, cut out one more welding strip cycle and weld it to the end of the battery string, and then cut out a suitable length, but this method causes waste of welding strips and is costly. In the production of welding strips, firstly, a segmented shaped copper strip as the welding strip substrate is prepared, and then the segmented shaped copper strip is surface treated to prepare the welding strip.

[0031] Embodiment 1: This embodiment provides a calendering device, referring to Figure 2 and Figure 3 As shown, the device includes at least one group of roller assemblies; the roller assembly includes a pair of rollers 3 with parallel central axes; the outer circumference of the roller 3 is a circumferential surface, the circumferential surface includes a first pressure section 311 for applying pressure to the special-shaped copper strip and a groove section 312 for accommodating the special-shaped copper strip to prevent the special-shaped copper strip from being compressed and deformed, the first pressure sections 311 and the groove sections 312 are equal in number and arranged at intervals, so as to press out the flat sections and special-shaped sections arranged at intervals, and the circumferential surface also includes a second pressure section 313, the second pressure section 313 is connected to any first pressure section 311, and the second pressure section 313 is connected to the first pressure section 311 to press out a flat section with a length greater than that used for the battery cells in the same string of batteries, so as to connect the battery cells in different strings of batteries with larger spacing. Preferably, the surfaces of the first pressure section 311 and the second pressure section 313 are on the same circumferential surface.

[0032] As a preferred embodiment, the length of the second pressure section 313 in the circumferential direction of the roller 3 is smaller than the length of the first pressure section 311 in the circumferential direction of the roller 3, so as to meet the length requirement and save material consumption.

[0033] In a preferred embodiment, the central axes of a pair of rollers 3 are located on the same vertical plane, and the rollers 3 are arranged in the longitudinal direction to save space occupied by the device.

[0034] More preferably, the roller 3 includes a pressure roller member 31 and a rotating shaft 32 passing through the pressure roller member 31 for driving the pressure roller member 31 to rotate. The rotating shaft 32 is arranged to coincide with the center axis of the pressure roller member 31 to prevent the roller 3 from getting stuck during rotation. The pressure roller member 31 includes the above-mentioned circumferential surface.

[0035] More preferably, the surface of the rotating shaft 32 is provided with a first gear 321 along its circumference, the first gear 321 is meshed with a second gear 4, the circumference of the second gear 4 is smaller than the circumference of the first gear 321, and the second gear 4 is connected to a driving assembly (not shown) for driving it to rotate so as to drive the rotating shaft 32 to rotate. By driving the second gear 4 meshed with the first gear 321 and having a circumference smaller than the circumference of the first gear 321 to drive the rotating shaft 32 to rotate, it is more labor-saving.

[0036] More preferably, the rotating shaft 32 is connected to a limiting assembly, and the limiting assembly includes a clamping wheel 5 distributed on both sides of the rotating shaft 32, and the clamping wheel 5 is connected to the end face of the pressure roller member 31. Exemplarily, a clamping wheel 5 is respectively arranged on both sides of each rotating shaft 32, and the two clamping wheels 5 are respectively connected to the end faces of the pressure roller member 31, so as to limit the position of the pressure roller member 31 and prevent the pressure roller member 31 from shaking due to excessive size and weight.

[0037] More preferably, the calendering device 100 further comprises a fixed frame 6 and an adjusting mechanism mounted on the fixed frame 6 for adjusting the spacing of the pressing rollers 31; specifically, the adjusting mechanism is arranged on the side of the roller 3 away from another roller in the roller assembly, and the adjusting mechanism comprises a spring 7, a connecting member 8 and an adjusting member 9; the adjusting member 9 is passed through the fixed frame 6 and is spirally connected to the fixed frame 6, and the position of the adjusting member 9 can be moved by rotating the adjusting member 9, and a spring 7 arranged along the spacing adjustment direction is connected between the connecting member 8 and the fixed frame 6, one end of the connecting member 8 abuts against the end of the adjusting member 9, and the other end is connected to the rotating shaft 32. Specifically, a handle is arranged at one end of the adjusting member 9 extending out of the fixed frame 6, and the adjusting member 9 can be controlled to approach the rotating shaft 32 or move away from the rotating shaft 32 by rotating the handle. When the handle is rotated to control the adjusting member 9 to approach the rotating shaft, the adjusting member 9 presses the connecting member 8 and thereby presses the rotating shaft 32, pressing the rotating shaft 32 toward the other roller 3, thereby reducing the distance between the rollers 3. When the distance between the rollers 3 needs to be increased, the handle is rotated to control the adjusting member 9 to move away from the rotating shaft, and the connecting member 8 is reset under the elastic force of the spring 7, thereby driving the rotating shaft 32 away from the other roller 3.

[0038] The present embodiment provides a rolling device, which includes at least one group of roller assemblies; the roller assembly includes a pair of rollers with parallel central axes; the outer circumference of the roller is a circumferential surface, the circumferential surface includes a first pressure section for applying pressure to the special-shaped copper strip and a first groove section for accommodating the special-shaped copper strip to avoid the special-shaped copper strip from being compressed and deformed, the first pressure sections and the first groove sections are equal in number and are arranged at intervals, the circumferential surface also includes a second pressure section, and the second pressure section is connected to any first pressure section; the special-shaped copper strip is pressed by the roller assembly, and the first pressure section and the first groove section are arranged at intervals, so that a segmented copper strip with alternating special-shaped sections and flat sections can be manufactured, and a second pressure section connected to any first pressure section is arranged, the produced segmented special-shaped copper strip has a flat section longer than the first pressure section, and the welding strip manufactured subsequently can meet the connection between the same string of battery cells and also the connection between different strings of battery cells.

[0039] Embodiment 2: The difference between this embodiment and embodiment 1 is that in this embodiment, the circumferential surface also includes a second groove segment, and the second groove segment is connected to any first groove segment; the roller assembly is used to press the shaped copper strip, and the first pressure segment and the first groove segment are arranged at intervals, so that a segmented copper strip with alternating shaped segments and flat segments can be manufactured, and a second groove segment connected to any of the first groove segments is arranged, and the produced segmented shaped copper strip has a shaped segment longer than the first groove segment, and the subsequent welding strip can meet the connection between the same string of battery cells and the connection between different strings of battery cells. Preferably, the groove bottom surfaces of the first groove segment 312 and the second groove segment 314 are on the same circumferential surface.

[0040] Embodiment 3: The calendering device provided in this embodiment is different from that in Embodiment 1 in that the circumferential surface also includes a second groove section and a second pressure section, the second groove section is connected to any first groove section, and the second pressure section is connected to any first pressure section; a roller assembly is used to press the shaped copper strip, and the first pressure section and the first groove section are arranged at intervals, so that a segmented copper strip with alternating shaped sections and flat sections can be manufactured, and a second pressure section connected to any first pressure section and a second groove section connected to any first groove section are arranged, and the produced segmented shaped copper strip has both a flat section longer than the first pressure section and a shaped section longer than the first groove section, and the subsequently manufactured welding strip can satisfy the connection between the same string of battery cells and also the connection between different strings of battery cells. Preferably, the surfaces of the first pressure section 311 and the second pressure section 313 are on the same circumferential surface, and the groove bottom surfaces of the first groove section 312 and the second groove section 314 are on the same circumferential surface.

[0041] Embodiment 4: This embodiment provides a calendering device, referring to Figure 3As shown, the difference from Example 1 is that the end of the rotating shaft 32 is connected to a driving assembly that drives the rotating shaft 32 to rotate around its central axis. Exemplarily, the driving assembly is a rotating motor 10, which directly drives the rotating shaft to rotate, has a simpler structure, and saves space.

[0042] Embodiment 5: This embodiment provides a segmented special-shaped copper strip production device, including a wire-paying device, a wire-drawing device for drawing a copper substrate into a special-shaped copper strip, and a rolling device as provided in any one of Embodiments 1 to 4.

[0043] Preferably, it also includes: at least one of an annealing device, a coating device, a tinning device, a cooling device, and a wire taking-up device.

[0044] The segmented special-shaped copper strip production equipment provided in this embodiment and the embodiment of a rolling device provided in any one of Embodiments 1 to 4 belong to the same concept, and its beneficial effects are detailed in the aforementioned embodiments and will not be repeated here.

[0045] Embodiment 6: This embodiment provides a segmented special-shaped copper strip production device, which is different from Embodiment 5 in that the copper substrate is made into a special-shaped copper strip by a pressing device that presses the substrate into a special-shaped copper strip. The segmented special-shaped copper strip production device provided in this embodiment and the embodiment of a rolling device provided in Embodiments 1 to 4 belong to the same concept, and the specific implementation process is detailed in the device embodiment, which will not be repeated here.

[0046] Embodiment 7: This embodiment provides a segmented special-shaped copper strip production method, which is implemented based on the segmented special-shaped copper strip production equipment provided in Embodiment 5 or Embodiment 6, referring to Figure 5 As shown, the method at least includes:

[0047] 51. The pay-off device introduces the copper substrate into the wire drawing device or the pressing device to form a shaped copper strip; preferably, the pay-off device introduces three copper substrates into the wire drawing device, and each of the three has a corresponding die to draw out a shaped copper strip with a corresponding cross section. Exemplarily, the cross section of the shaped copper strip is uniform and triangular. A groove with a corresponding cross section shape can also be opened on a pressing roller to press out a shaped copper strip with a corresponding cross section shape.

[0048] 52. The calendering device presses the shaped copper strip into a segmented shaped copper strip; the segmented shaped copper strip includes shaped segments and flat segments that are spaced apart.

[0049] In a preferred embodiment, after step 52, the method further includes:

[0050] 53. The segmented special-shaped copper strip is introduced into the annealing device for annealing.

[0051] 54. The coating device coats flux on the surface of the segmented special-shaped copper strip after annealing.

[0052] 55. The tinning device coats tin on the surface of the segmented special-shaped copper strip after being coated with flux.

[0053] 56. The cooling device cools the tin-coated segmented special-shaped copper strip to obtain the segmented special-shaped welding strip.

[0054] 57. The wire taking-up device winds up the segmented special-shaped welding strip.

[0055] In another preferred embodiment, before step 51, the method further includes:

[0056] The pay-off device first introduces the copper substrate into the annealing device, and the annealing device anneals the copper substrate to soften the copper substrate and improve the subsequent rolling effect.

[0057] In yet another preferred embodiment, before step 51, the method further comprises: a wire-paying device introduces the copper substrate into a wire-drawing device, and the wire-drawing device pre-draws the copper substrate to improve the subsequent rolling effect.

[0058] It should be noted that the segmented special-shaped copper strip production method provided in the above embodiment and the segmented special-shaped copper strip production equipment provided in Example 5 or Example 6 belong to the same concept, that is, the method is based on the equipment, and its beneficial effects are not repeated here.

[0059] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0060] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

Claims

1. A calendering device, characterized in that: The device comprises at least one group of roller assemblies; the roller assembly comprises a pair of rollers with parallel central axes, and the central axes of the pair of rollers are located on the same vertical plane; the outer periphery of the roller is a circumferential surface, and the circumferential surface comprises a first pressure section for applying pressure to the special-shaped copper strip and a first groove section for accommodating the special-shaped copper strip to prevent the special-shaped copper strip from being compressed and deformed, the first pressure sections are equal in number to the first groove sections and are arranged at intervals, the circumferential surface also comprises a second groove section and / or a second pressure section, the second groove section is connected to any of the first groove sections, and the second pressure section is connected to any of the first pressure sections to press out a flat section with a length greater than that used for the battery cells in the same string of batteries, so as to connect the battery cells in different strings of batteries with larger spacing, The length of the second pressure section in the circumferential direction of the roller is smaller than the length of the first pressure section in the circumferential direction of the roller, and the length of the second groove section in the circumferential direction of the roller is smaller than the length of the first groove section in the circumferential direction of the roller; The segmented special-shaped copper strip produced by the device has a special-shaped section whose length is greater than that of the first groove section. The welding strip produced subsequently can satisfy the connection between battery cells in the same string and also the connection between battery cells in different strings.

2. A calendering device according to claim 1, characterized in that: The rolling roller comprises a pressure roller member and a rotating shaft penetrating the pressure roller member for driving the pressure roller member to rotate. The rotating shaft is arranged to coincide with the center axis of the pressure roller member. The pressure roller member comprises the circumferential surface.

3. A calendering device according to claim 2, characterized in that: A first gear is arranged on the surface of the rotating shaft along its circumference, the first gear is meshed with a second gear, the circumference of the second gear is smaller than that of the first gear, and the second gear is connected to a driving component for driving it to rotate so as to drive the rotating shaft to rotate.

4. A calendering device according to claim 2, characterized in that: The end of the rotating shaft is connected to a driving assembly which drives the rotating shaft to rotate around its central axis.

5. A calendering device according to claim 2, characterized in that: The rotating shaft is connected to a limiting assembly, and the limiting assembly includes clamping wheels distributed on both sides of the rotating shaft, and the clamping wheels are connected to the end surface of the pressure roller member.

6. A calendering device according to claim 2, characterized in that: The device also includes a fixed frame and an adjusting mechanism installed on the fixed frame for adjusting the spacing between the pressure rollers; the adjusting mechanism includes a spring, a connecting member and an adjusting member; the adjusting member is passed through the fixed frame and is spirally connected to the fixed frame, a spring arranged along the spacing adjustment direction is connected between the connecting member and the fixed frame, one end of the connecting member abuts against the end of the adjusting member, and the other end is connected to the rotating shaft.

7. A segmented special-shaped copper strip production equipment, characterized in that: It comprises a wire-paying device, a wire-drawing device for drawing a copper substrate into a special-shaped copper strip or a pressing device for pressing a copper substrate into a special-shaped copper strip, and a rolling device as described in any one of claims 1 to 6.

8. A method for producing segmented special-shaped copper strips, characterized in that: Using the segmented special-shaped copper strip production equipment as claimed in claim 7, the method comprises: The pay-off device introduces the copper substrate into the wire drawing device or the pressing device to form a special-shaped copper strip. The calendering device presses the special-shaped copper strip into a segmented special-shaped copper strip; the segmented special-shaped copper strip comprises special-shaped segments and flat segments which are arranged at intervals.

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