An ACF material slitting device, cutting and winding system, and ACF unit slitting and winding method

Abstract

The application discloses an ACF material slitting device, an ACF material cutting and winding system comprising the ACF material slitting device and a 0.4mm ACF unit slitting and winding method. The device comprises a first roller, a second roller, a third roller and a fourth roller, which are sequentially arranged along the direction of ACF material movement. A cutter cuts the ACF material into a plurality of ACF units. The first roller is provided with a first guide groove with a spacing range of 0.8-1.2mm. The second roller is provided with a second guide groove with a spacing range of 4.5-5.5mm. The third roller is provided with a third guide groove with a spacing range of 14.5-15.5mm. The fourth roller is provided with a fourth guide groove with a spacing range of 27-28mm. The ACF units sequentially enter the first guide groove, the second guide groove, the third guide groove and the fourth guide groove respectively, so as to achieve the purpose of separation and then winding on a winding device. The ACF material slitting device can effectively perform the slitting operation on the 0.4mm level ACF material, and avoid the reverse peeling of the ACF material during the transportation process.

Description

Technical Field

[0001] The present invention specifically relates to an ACF material slitting device, an ACF material cutting and winding system including the ACF material slitting device, and a 0.4mm ACF unit slitting and winding method. Background Technology

[0002] ACF (Anisotropic Conductive Film) material is widely used in electronic products, and it often needs to be cut and rolled up during use.

[0003] After cutting the ACF material, it needs to be slitting. Since the ACF material consists of two layers, if the width after cutting is too small, such as 0.4mm, the ACF material is prone to reverse peeling (delamination), making it unusable.

[0004] In existing technologies, there are generally two-stage roller devices with a large angle between the two roller devices. This causes the ACF material to be subjected to a large force during transmission, which in turn leads to reverse peeling of the ACF material. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the above-mentioned shortcomings in the prior art by providing an ACF material slitting device, an ACF material cutting and winding system including the ACF material slitting device, and a 0.4mm ACF unit slitting and winding method. The ACF material slitting device can effectively slit 0.4mm-level ACF material, avoiding reverse peeling during ACF material transportation.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] An ACF material slitting device includes a roller assembly comprising a first roller, a second roller, a third roller, and a fourth roller. The first roller, second roller, third roller, and fourth roller are sequentially arranged along the direction of ACF material movement. A cutter cuts the ACF material into multiple ACF units. The first roller has multiple first guide grooves spaced apart, with a spacing of 0.8–1.2 mm between adjacent first guide grooves. The second roller has multiple second guide grooves spaced apart, with a spacing of 4.5–5.5 mm between adjacent second guide grooves. The third roller has multiple third guide grooves spaced apart, with a spacing of 14.5–15.5 mm between adjacent third guide grooves. The fourth roller has multiple fourth guide grooves spaced apart, with a spacing of 27–28 mm between adjacent fourth guide grooves. Multiple ACF units sequentially enter the first guide groove, second guide groove, third guide groove, and fourth guide groove, thereby achieving separation. The separated ACF units are then wound onto a winding device.

[0008] Preferably, the width of the ACF unit does not exceed 0.4 mm.

[0009] Preferably, the spacing between two adjacent first guide grooves is the same, which is 1 mm; the spacing between two adjacent second guide grooves is the same, which is 5 mm; the spacing between two adjacent third guide grooves is the same, which is 15 mm; and the spacing between two adjacent fourth guide grooves is the same, which is 27.5 mm.

[0010] Preferably, the number of the ACF unit, the first guide groove, the second guide groove, the third guide groove, and the fourth guide groove are all the same.

[0011] Preferably, the cross-section of the first guide groove includes a rectangular opening near the central axis of the first roller and a conical opening near the outer surface of the first roller; the cross-section of the second guide groove includes a rectangular opening near the central axis of the second roller and a conical opening near the outer surface of the second roller; the cross-section of the third guide groove includes a rectangular opening near the central axis of the third roller and a conical opening near the outer surface of the third roller; and the cross-section of the fourth guide groove includes a rectangular opening near the central axis of the fourth roller and a conical opening near the outer surface of the fourth roller. The angles of the conical openings of the second guide groove, the third guide groove, and the fourth guide groove are all greater than those of the first guide groove.

[0012] Preferably, the heights of the first roller, the second roller, the third roller, and the fourth roller decrease sequentially.

[0013] Preferably, the width of the first guide groove is in the range of 0.45 to 0.5 mm, the width of the second guide groove is in the range of 0.45 to 0.48 mm, the width of the third guide groove is in the range of 0.45 to 0.48 mm, and the width of the fourth guide groove is in the range of 0.45 to 0.48 mm.

[0014] The present invention also provides an ACF material cutting and winding system, including a cutting tool, multiple winding devices, and the aforementioned ACF material slitting device. The cutting tool is positioned in front of the first roller. The cutting tool cuts the ACF material into multiple ACF units. The multiple ACF units pass through the first guide groove, the second guide groove, the third guide groove, and the fourth guide groove in sequence, and are then wound up at the multiple winding devices.

[0015] Preferably, the number of the winding devices is the same as the number of the ACF unit, the first guide groove, the second guide groove, the third guide groove, and the fourth guide groove.

[0016] The present invention also provides a method for slitting and winding 0.4mm ACF unit slabs, using the above-mentioned ACF material slitting device, and the method is as follows:

[0017] Multiple 0.4mm ACF units cut by the cutter are respectively overlapped in the first guide grooves of the first roller;

[0018] Multiple 0.4mm ACF units that have passed through the first guide groove are respectively overlapped on the second roller in the corresponding second guide groove;

[0019] Multiple 0.4mm ACF units that have passed through the second guide groove are respectively overlapped in the corresponding third guide groove on the third roller;

[0020] Multiple 0.4mm ACF units that have passed through the third guide groove are respectively overlapped in the corresponding fourth guide groove on the fourth roller;

[0021] Finally, the ACF unit that has passed through the fourth guide groove is wound onto the winding device.

[0022] The ACF material slitting device of this invention arranges the first, second, third, and fourth rollers side by side to ensure that the ACF units maintain a basically straight line during transportation, thereby avoiding large-angle turns of the ACF units and thus preventing reverse peeling. Furthermore, the guide groove spacing of the four rollers increases sequentially, gradually separating the ACF units as they pass through the four rollers, facilitating subsequent winding operations. The multi-stage widening of the spacing also helps reduce large-angle turns of the ACF units, further preventing reverse peeling. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the ACF material slitting device in Embodiment 1 of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the first roller in Embodiment 1 of the present invention;

[0025] Figure 3 This is a cross-sectional view of the first roller in Embodiment 1 of the present invention;

[0026] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of the second roller in Embodiment 1 of the present invention;

[0028] Figure 6 This is a cross-sectional view of the second roller in Embodiment 1 of the present invention;

[0029] Figure 7 yes Figure 6 A magnified view of a portion of point B;

[0030] Figure 8 This is a schematic diagram of the structure of the third roller in Embodiment 1 of the present invention;

[0031] Figure 9 This is a cross-sectional view of the third roller in Embodiment 1 of the present invention;

[0032] Figure 10 yes Figure 9 A magnified view of a section at point C;

[0033] Figure 11 This is a schematic diagram of the structure of the fourth roller in Embodiment 1 of the present invention;

[0034] Figure 12 This is a cross-sectional view of the fourth roller in Embodiment 1 of the present invention;

[0035] Figure 13 yes Figure 12 A magnified view of a section at point D.

[0036] In the diagram: 100 - First roller, 110 - Second roller, 120 - Third roller, 130 - Fourth roller, 140 - First guide groove, 150 - Second guide groove, 160 - Third guide groove, 170 - Fourth guide groove, 200 - ACF unit, 300 - Rewinding device. Detailed Implementation

[0037] The technical solutions of the invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without creative effort are within the scope of the invention.

[0038] In the description of this invention, it should be noted that the terms "above" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience and simplification of the description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "setting," "installation," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] This invention provides an ACF material slitting device, including a roller assembly comprising a first roller, a second roller, a third roller, and a fourth roller. The first roller, second roller, third roller, and fourth roller are sequentially arranged along the direction of movement of the ACF material. A cutter cuts the ACF material into multiple ACF units with relatively small widths. The first roller has multiple first guide grooves spaced apart, with the spacing between two adjacent first guide grooves ranging from 0.8 to 1.2 mm. The second roller has multiple second guide grooves spaced apart, with the spacing between two adjacent second guide grooves ranging from 4.5 to 5.5 mm. The third roller has multiple third guide grooves spaced apart, with the spacing between two adjacent third guide grooves ranging from 14.5 to 15.5 mm. The fourth roller has multiple fourth guide grooves spaced apart, with the spacing between two adjacent fourth guide grooves ranging from 27 to 28 mm. The multiple ACF units sequentially enter the first guide groove, second guide groove, third guide groove, and fourth guide groove, thereby achieving separation. The separated ACF units are then wound onto a winding device.

[0042] The present invention also provides an ACF material cutting and winding system, including a cutting tool, multiple winding devices, and the aforementioned ACF material slitting device. The cutting tool is positioned in front of the first roller. The cutting tool cuts the ACF material into multiple ACF units. The multiple ACF units pass through the first guide groove, the second guide groove, the third guide groove, and the fourth guide groove in sequence, and are then wound up at the multiple winding devices.

[0043] The present invention also provides a method for slitting and winding 0.4mm ACF unit slabs, using the above-mentioned ACF material slitting device, and the method is as follows:

[0044] Multiple 0.4mm ACF units cut by the cutter are respectively overlapped in the first guide grooves of the first roller;

[0045] Multiple 0.4mm ACF units that have passed through the first guide groove are respectively overlapped on the second roller in the corresponding second guide groove;

[0046] Multiple 0.4mm ACF units that have passed through the second guide groove are respectively overlapped in the corresponding third guide groove on the third roller;

[0047] Multiple 0.4mm ACF units that have passed through the third guide groove are respectively overlapped in the corresponding fourth guide groove on the fourth roller;

[0048] Finally, the ACF unit that has passed through the fourth guide groove is wound onto the winding device.

[0049] Example 1

[0050] like Figure 1 As shown, this embodiment discloses an ACF material slitting device, including a roller assembly. The roller assembly includes a first roller 100, a second roller 110, a third roller 120, and a fourth roller 130; the first roller 100, the second roller 110, the third roller 120, and the fourth roller 130 are arranged sequentially along the direction of ACF material movement (arranged side by side with intervals), and the cutter cuts the ACF material into multiple ACF units 200 with a relatively small width. In this embodiment, the width of the ACF unit 200 does not exceed 0.4 mm.

[0051] like Figure 2 , 3 As shown, specifically, a plurality of first guide grooves 140 are spaced apart on the outer surface of the first roller 100, and the spacing between two adjacent first guide grooves 140 ranges from 0.8 to 1.2 mm; Figure 5 , 6 As shown, a plurality of second guide grooves 150 are spaced apart on the outer surface of the second roller 110, and the spacing between two adjacent second guide grooves 150 ranges from 4.5 to 5.5 mm; Figure 8 , 9As shown, a plurality of third guide grooves 160 are spaced apart on the outer surface of the third roller 120, and the spacing between two adjacent third guide grooves 160 ranges from 14.5 to 15.5 mm; Figure 11 , 12 As shown, multiple fourth guide grooves 170 are spaced apart on the outer surface of the fourth roller 130, with the distance between two adjacent fourth guide grooves 170 ranging from 27 to 28 mm. Multiple ACF units 200 sequentially enter the first guide groove 140, the second guide groove 150, the third guide groove 160, and the fourth guide groove 170, respectively. The distance between adjacent ACF units 200 increases as they move forward, thereby separating the individual ACF units 200. The separated ACF units 200 are then wound onto the winding device 300.

[0052] Preferably, the spacing between two adjacent first guide grooves 140 is the same, with a spacing of 1 mm; the spacing between two adjacent second guide grooves 150 is the same, with a spacing of 5 mm; the spacing between two adjacent third guide grooves 160 is the same, with a spacing of 15 mm; and the spacing between two adjacent fourth guide grooves 170 is the same, with a spacing of 27.5 mm. This spacing arrangement can most effectively separate the multiple ACF units 200.

[0053] In this embodiment, the number of ACF unit 200, first guide groove 140, second guide groove 150, third guide groove 160 and fourth guide groove 170 are all the same.

[0054] like Figure 3 , 6 As shown in Figures 9 and 12, specifically, in this embodiment, there are fifteen first guide grooves 140, second guide grooves 150, third guide grooves 160, and fourth guide grooves 170. Correspondingly, there are also fifteen ACF units 200 after being cut by the tool. The fifteen ACF units 200 respectively enter the corresponding guide grooves in the first guide groove 140, second guide groove 150, third guide groove 160, and fourth guide groove 170.

[0055] like Figure 4 As shown, in this embodiment, the cross-section of the first guide groove 140 includes a rectangular opening near the central axis of the first roller 100 and a tapered opening near the outer surface of the first roller 100. The tapered opening communicates with the rectangular opening, and the angle between the extension line of the tapered opening and the rectangular opening is 15°. The width of the rectangular opening (width of the first guide groove 140) is 0.45 mm, with an allowable tolerance range of 0-0.05 mm, and the outer width of the tapered opening is 0.8 mm.

[0056] like Figure 7As shown, the cross-section of the second guide groove 150 includes a rectangular opening near the central axis of the second roller 110 and a tapered opening near the outer surface of the second roller 110. The tapered opening communicates with the rectangular opening, and the angle between the extension line of the tapered opening and the rectangular opening is 20°. The width of the rectangular opening (width of the second guide groove 150) is 0.45 mm, with an allowable tolerance range of 0-0.03 mm, and the outer width of the tapered opening is 1.45 mm.

[0057] like Figure 10 As shown, the cross-section of the third guide groove 160 includes a rectangular opening near the central axis of the third roller 120 and a tapered opening near the outer surface of the third roller 120. The tapered opening communicates with the rectangular opening, and the angle between the extension line of the tapered opening and the rectangular opening is 20°. The width of the rectangular opening (width of the third guide groove 150) is 0.45 mm, with an allowable tolerance range of 0-0.03 mm, and the outer width of the tapered opening is 1.45 mm.

[0058] like Figure 13 As shown, the cross-section of the fourth guide groove 170 includes a rectangular opening near the central axis of the fourth roller 130 and a tapered opening near the outer surface of the fourth roller 130. The tapered opening communicates with the rectangular opening, and the angle between the extension line of the tapered opening and the rectangular opening is 20°. The width of the rectangular opening (the width of the third guide groove 150) is 0.45 mm, with an allowable tolerance range of 0-0.03 mm, and the outer width of the tapered opening is 1.45 mm.

[0059] It is evident that the conical opening angles of the second guide groove 150, the third guide groove 160, and the fourth guide groove 170 are all greater than those of the first guide groove 140. Furthermore, due to tolerance constraints, the width of the first guide groove 140 is greater than the widths of the second guide groove 150, the third guide groove 160, and the fourth guide groove 170, so that the ACF unit 200 can more easily enter the second guide groove 150, the third guide groove 160, and the fourth guide groove 170 during movement.

[0060] like Figure 1 As shown, optionally, the heights of the first roller 100, the second roller 110, the third roller 120, and the fourth roller 130 are all different. Specifically, the heights of the first roller 100, the second roller 110, the third roller 120, and the fourth roller 130 decrease sequentially. This structural design facilitates the transport of the ACF unit 200 and also helps ensure the smoothness of the ACF unit 200 during transport, thereby avoiding reverse peeling. The height of the winding device 300 is lower than the height of the fourth roller 130, which facilitates the winding of the ACF unit 200 by the winding device 300.

[0061] In this embodiment, the ACF material slitting device arranges the first roller 100, the second roller 110, the third roller 120, and the fourth roller 130 side by side to ensure that the ACF unit 200 maintains a basically straight transport path during transportation, thereby avoiding large-angle turns of the ACF unit 200 and thus preventing reverse peeling. Furthermore, the guide groove spacing of the four rollers increases sequentially, and the ACF unit 200 is gradually separated after passing through the four rollers, facilitating subsequent winding operations. The multi-stage widening of the spacing also helps reduce large-angle turns of the ACF unit 200, further preventing reverse peeling.

[0062] Example 2

[0063] This embodiment discloses an ACF material cutting and winding system, including a cutting tool, multiple winding devices 300, and the ACF material slitting device in Embodiment 1. The cutting tool is located in front of the first roller 100. The cutting tool cuts the ACF material into multiple ACF units 200. The multiple ACF units 200 pass through the first guide groove 140, the second guide groove 150, the third guide groove 160, and the fourth guide groove 170 in sequence, and are wound up at the multiple winding devices 300 respectively.

[0064] In this embodiment, the cutter is positioned in front of the first roller 100 to divide the ACF material into fifteen ACF units 200 with a width of 0.4 mm. The fifteen ACF units 200 enter the fifteen first guide grooves 140 on the first roller 100, and then pass through the second guide groove 150 of the second roller 110, the third guide groove 160 of the third roller 120, and the fourth guide groove 170 of the fourth roller 130, and are then wound up at the winding device 300.

[0065] Specifically, there are fifteen winding devices 300. The fifteen winding devices 300 are arranged sequentially behind each of the fourth guide grooves 170 of the fourth roller 130. The ACF unit 200 that comes out of the fourth guide groove 170 is wound onto each winding device 300.

[0066] The ACF material cutting and winding system in this embodiment adopts the ACF material slitting device in Embodiment 1, which can effectively avoid reverse peeling of ACF material during cutting, transportation and winding.

[0067] Example 3

[0068] This embodiment discloses a slitting and winding method for 0.4mm ACF unit 200, using the ACF material slitting device in Embodiment 1, and the method is as follows:

[0069] Multiple 0.4mm ACF units 200 cut by the tool are respectively overlapped in the first guide grooves 140 of the first roller 100;

[0070] Multiple 0.4mm ACF units 200 that have passed through the first guide groove 140 are respectively overlapped in the corresponding second guide groove 150 on the second roller 110;

[0071] Multiple 0.4mm ACF units 200 that have passed through the second guide groove 150 are respectively overlapped in the corresponding third guide groove 160 on the third roller 120;

[0072] Multiple 0.4mm ACF units 200 that have passed through the third guide groove 160 are respectively overlapped in the corresponding fourth guide groove 170 on the fourth roller 130;

[0073] Finally, the ACF unit 200, which has passed through the fourth guide groove 170, is wound onto the winding device 300.

[0074] Specifically, the cutter cuts the ACF material into fifteen ACF units 200 with a width of 0.4mm. The first ACF unit 200 is located in the first guide groove 140 of the first roller 100, the second ACF unit 200 is located in the second guide groove 140 of the first roller 100, and so on, with the fifteenth ACF unit 200 located in the fifteenth guide groove 140 of the first roller 100. Similarly, multiple ACF units 200 pass sequentially through the corresponding second guide groove 150, third guide groove 160, and fourth guide groove 170, and finally, are wound up on the winding device 300 behind the fourth roller 130.

[0075] In this embodiment, the slitting and winding method for the 0.4mm ACF unit 200 arranges the first roller 100, second roller 110, third roller 120, and fourth roller 130 side by side. This ensures that the ACF unit 200 maintains a relatively straight line during transport, thereby avoiding large-angle bends and thus preventing reverse peeling. Furthermore, the guide groove spacing of the four rollers increases sequentially, gradually separating the ACF unit 200 as it passes through them. This facilitates subsequent winding operations, and the multi-stage widening spacing helps reduce large-angle bends in the ACF unit 200, further preventing reverse peeling. This method is suitable for ACF products with smaller widths.

[0076] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A slitting device for ACF material, characterized in that, Including roller assemblies, The roller assembly includes a first roller (100), a second roller (110), a third roller (120), and a fourth roller (130). The first roller (100), the second roller (110), the third roller (120), and the fourth roller (130) are arranged sequentially along the direction of movement of the ACF material. The cutter cuts the ACF material into multiple ACF units (200). The first roller (100) is provided with a plurality of first guide grooves (140) spaced apart, and the distance between two adjacent first guide grooves (140) is 0.8~1.2mm; the second roller (110) is provided with a plurality of second guide grooves (150) spaced apart, and the distance between two adjacent second guide grooves (150) is 4.5~5.5mm; the third roller (120) is provided with a plurality of third guide grooves (160) spaced apart, and the distance between two adjacent third guide grooves (160) is 14.5~15.5mm; the fourth roller (130) is provided with a plurality of fourth guide grooves (170) spaced apart, and the distance between two adjacent fourth guide grooves (170) is 27~28mm; Multiple ACF units (200) enter the first guide groove (140), the second guide groove (150), the third guide groove (160), and the fourth guide groove (170) in sequence to achieve separation. The separated ACF units (200) are then wound onto the winding device (300). The width of the ACF unit (200) does not exceed 0.4 mm; The heights of the first roller (100), the second roller (110), the third roller (120), and the fourth roller (130) decrease sequentially. The width of the first guide groove (140) is 0.45~0.5mm, the width of the second guide groove (150) is 0.45~0.48mm, the width of the third guide groove (160) is 0.45~0.48mm, and the width of the fourth guide groove (170) is 0.45~0.48mm.

2. The ACF material slitting device according to claim 1, characterized in that, The spacing between two adjacent first guide grooves (140) is the same, and the spacing is 1mm; The spacing between two adjacent second guide grooves (150) is the same, and the spacing is 5mm; The spacing between two adjacent third guide grooves (160) is the same, and the spacing is 15mm; The two adjacent fourth guide grooves (170) are spaced at the same distance, which is 27.5 mm.

3. The ACF material slitting device according to claim 2, characterized in that, The number of ACF units (200), the first guide groove (140), the second guide groove (150), the third guide groove (160), and the fourth guide groove (170) are all the same.

4. The ACF material slitting device according to claim 2, characterized in that, The cross-section of the first guide groove (140) includes a rectangular opening near the central axis of the first roller (100) and a tapered opening near the outer surface of the first roller (100). The cross-section of the second guide groove (150) includes a rectangular opening near the central axis of the second roller (110) and a tapered opening near the outer surface of the second roller (110). The cross-section of the third guide groove (160) includes a rectangular opening near the central axis of the third roller (120) and a tapered opening near the outer surface of the third roller (120). The cross-section of the fourth guide groove (170) includes a rectangular opening near the central axis of the fourth roller (130) and a tapered opening near the outer surface of the fourth roller (130). The angles of the conical openings of the second guide groove (150), the third guide groove (160), and the fourth guide groove (170) are all greater than those of the first guide groove (140).

5. An ACF material cutting and winding system, comprising a cutting tool and multiple winding devices (300), characterized in that, It also includes the ACF material slitting apparatus according to any one of claims 1-4. The cutter is positioned in front of the first roller (100). The cutter cuts the ACF material into multiple ACF units (200). The multiple ACF units (200) pass through the first guide groove (140), the second guide groove (150), the third guide groove (160), and the fourth guide groove (170) in sequence, and are then wound up at multiple winding devices (300).

6. The ACF material cutting and winding system according to claim 5, characterized in that, The number of the winding device (300) is the same as the number of the ACF unit (200), the first guide groove (140), the second guide groove (150), the third guide groove (160), and the fourth guide groove (170).

7. A method for slitting and winding 0.4mm ACF unit strips, characterized in that, The method using the ACF material slitting apparatus according to any one of claims 1-4 is as follows: Multiple 0.4mm ACF units (200) cut by the cutter are respectively overlapped in the first guide grooves (140) of the first roller (100); Multiple 0.4mm ACF units (200) passing through the first guide groove (140) are respectively overlapped in the corresponding second guide groove (150) on the second roller (110); Multiple 0.4mm ACF units (200) passing through the second guide groove (150) are respectively overlapped in the corresponding third guide groove (160) on the third roller (120); Multiple 0.4mm ACF units (200) passing through the third guide groove (160) are respectively overlapped in the corresponding fourth guide groove (170) on the fourth roller (130); Finally, the ACF unit (200) that has passed through the fourth guide groove (170) is wound onto the winding device (300).

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