ACF (anisotropic conductive film) cutting and slitting equipment

Abstract

The utility model discloses ACF film cutting and slitting equipment, including unreeling shaft, reeling shaft, cutting tool and roller subassembly, ACF film is wound on the unreeling shaft, the cutting tool is arranged between the unreeling shaft and the reeling shaft and is arranged along the vertical direction, it includes upper knife and lower knife, the upper knife is provided with a plurality of blades at intervals, the lower knife is provided with a plurality of blades, the upper knife is provided with a plurality of blades, the lower knife is provided with a plurality of blades, the upper knife is provided with a plurality of blades, and the lower knife is provided with a plurality of blades. A plurality of blades are arranged on the upper cutter at intervals, a plurality of blades are arranged on the lower cutter at intervals, the blades on the upper cutter and the blades on the lower cutter are staggered by 0.4 mm, the ACF film horizontally passes through the cutting tool, the upper cutter and the lower cutter to rotate, so that the ACF film is cut into a plurality of thin strips of 0.4 mm, and the cut thin strips of the ACF film are split through a roller assembly and are respectively wound on corresponding winding shafts. According to the ACF film cutting and slitting equipment, the probability of reverse stripping during ACF film cutting and slitting can be reduced.

Description

Technical Field

[0001] The utility model specifically relates to an ACF film cutting and slitting device. Background Art

[0002] ACF materials (Anisotropic Conductive Film) are widely used in electronic products. During use, they often need to be cut and rolled up.

[0003] In existing technology, after cutting the ACF film, a stripping operation is required to separate the multiple ACF films. Because the ACF film consists of two layers, if the width after cutting is too small, such as 0.4mm, the ACF film is prone to reverse peeling (delamination), making it unusable. Existing cutting tools are generally placed on the left and right sides. This placement of the tools increases the probability of reverse peeling when cutting the ACF film. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide an ACF film stripping device in view of the above-mentioned deficiencies in the prior art, wherein the ACF film stripping device can reduce the probability of reverse peeling when the ACF film is stripped.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] An ACF film cutting and slitting device includes a unwinding shaft, a rewinding shaft, a cutting tool, and a roller assembly. The ACF film is wound on the unwinding shaft. The cutting tool is arranged between the unwinding shaft and the rewinding shaft and is arranged along the vertical direction. It includes an upper knife and a lower knife. The upper knife is provided with multiple blades at intervals, and the lower knife is provided with multiple blades at intervals. The blades on the upper knife and the blades on the lower knife are offset by 0.4 mm. The ACF film passes horizontally through the cutting tool, and the upper knife and the lower knife rotate, thereby cutting the ACF film into multiple 0.4 mm thin strips. The cut ACF film strips pass through the roller assembly and are slit and each is reeled up on the corresponding rewinding shaft.

[0007] Preferably, the ACF film cutting and slitting equipment also includes a detection component, which includes a lens and an LED lamp. The lens and the LED lamp are arranged relative to each other, and the ACF film passes between the lens and the LED lamp. The LED lamp is used to provide lighting, and the lens performs appearance inspection on the ACF film.

[0008] Preferably, the detection components are provided in two groups, and the two groups of detection components are arranged along the direction of movement of the ACF film.

[0009] Preferably, the ACF film cutting and slitting equipment also includes a protective film assembly, which includes a protective film shaft and a protective film. The protective film is wound on the protective film shaft, and the ACF film extending from the unwinding shaft and the protective film extending from the protective film shaft are bonded together and then enter the cutting tool for cutting together.

[0010] Preferably, the roller assembly is provided with two groups, and after being cut by a cutting tool, the ACF film and the protective film that are stuck together are separated, and the two groups of roller assemblies are used to separate the ACF film and the protective film into strips respectively.

[0011] Preferably, the ACF film cutting and slitting equipment further comprises a scrap machine, which is used to wind the scraps after the ACF film is cut.

[0012] Preferably, the roller assembly includes a first roller, a second roller, a third roller, and a fourth roller, and the heights of the first roller, the second roller, the third roller, and the fourth roller decrease in sequence.

[0013] Preferably, a plurality of first guide grooves are provided on the first roller at intervals, and the spacing between two adjacent first guide grooves ranges from 0.8 to 1.2 mm; a plurality of second guide grooves are provided on the second roller at intervals, and the spacing between two adjacent second guide grooves ranges from 4.5 to 5.5 mm; a plurality of third guide grooves are provided on the third roller at intervals, and the spacing between two adjacent third guide grooves ranges from 14.5 to 15.5 mm; a plurality of fourth guide grooves are provided on the fourth roller at intervals, and the spacing between two adjacent fourth guide grooves ranges from 27 to 28 mm; a plurality of ACF film strips respectively enter the first guide groove, the second guide groove, the third guide groove, and the fourth guide groove in turn, thereby achieving the purpose of separation, and then the separated ACF film strips are wound onto the winding shaft.

[0014] Preferably, the width of the first guide groove ranges from 0.45 to 0.5 mm, the width of the second guide groove ranges from 0.45 to 0.48 mm, the width of the third guide groove ranges from 0.45 to 0.48 mm, and the width of the fourth guide groove ranges from 0.45 to 0.48 mm.

[0015] The ACF film cutting and slitting equipment in the present invention changes the setting mode of the cutting tools, adapting the traditional left-right setting tools to upper-lower setting tools. This setting mode of the tools can reduce the probability of reverse peeling of the ACF film when cutting the ACF film, and effectively improve the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the ACF film cutting and slitting equipment in Example 1 of the present utility model;

[0017] Figure 2It is a structural schematic diagram of the cutting tool of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the first roller of the present invention;

[0019] Figure 4 This is a schematic structural diagram of the second roller of the present invention;

[0020] Figure 5 This is a schematic structural diagram of the third roller of the present utility model;

[0021] Figure 6 It is a structural schematic diagram of the fourth roller of the utility model.

[0022] In the figure: 100-unwinding shaft, 110-rewinding shaft, 120-protective film shaft, 200-ACF film, 210-protective film, 300-first roller, 310-second roller, 320-third roller, 330-fourth roller, 400-first roller, 410-second roller, 420-third roller, 430-fourth roller, 440-fifth roller, 500-edge material machine, 600-detection component, 700-cutting tool, 701-upper knife, 702-lower knife, 800-first guide groove, 810-second guide groove, 820-third guide groove, 830-fourth guide groove. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions of the utility model in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of the utility model.

[0024] In the description of the present invention, it should be noted that the term "upper" and the like to indicate an orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "connect," "dispose," "install," "fix," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] The utility model provides an ACF film cutting and slitting device, comprising a unwinding shaft, a rewinding shaft, a cutting tool, and a roller assembly. The ACF film is wound on the unwinding shaft, and the cutting tool is arranged between the unwinding shaft and the rewinding shaft and is arranged along the vertical direction. It comprises an upper knife and a lower knife. A plurality of blades are arranged at intervals on the upper knife, and a plurality of blades are arranged at intervals on the lower knife. The blades on the upper knife and the blades on the lower knife are staggered by 0.4 mm. The ACF film passes horizontally through the cutting tool, and the upper knife and the lower knife rotate, thereby cutting the ACF film into multiple 0.4 mm thin strips. The cut ACF film thin strips pass through the roller assembly and are slit, and each is reeled up on the corresponding rewinding shaft.

[0028] Example 1

[0029] like Figure 1 、 2 As shown, this embodiment discloses an ACF film cutting and slitting device, comprising an unwinding reel 100, a rewinding reel 110, a cutting blade 700, and a roller assembly. An ACF film 200 is wound around the unwinding reel 100. The cutting blade 700 is disposed vertically between the unwinding reel 100 and the rewinding reel 110. The cutting blade 700 comprises an upper blade 701 and a lower blade 702. The upper blade 701 is provided with a plurality of blades at intervals, while the lower blade 702 is provided with a plurality of blades at intervals. The blades on the upper blade 701 and the blades on the lower blade 702 are offset by 0.4 mm. The ACF film 200 passes horizontally through the cutting blade 700. The upper blade 701 and the lower blade 702 rotate, thereby cutting the ACF film 200 into multiple 0.4 mm thin strips. The cut ACF film strips are then passed through the roller assembly into strips and each strip is rewound onto a corresponding rewinding reel 110.

[0030] Specifically, the roller assembly is disposed between the cutting tool 700 and the reel 110 .

[0031] In this embodiment, the ACF film cutting and slitting equipment also includes a detection component 600, which includes a lens and an LED lamp. The lens and the LED lamp are arranged relative to each other, and the ACF film 200 passes between the lens and the LED lamp. The LED lamp is used to provide lighting, and the lens performs an appearance inspection on the ACF film 200 to detect whether there are dust, impurities and other pollutants on the product.

[0032] Specifically, there are two groups of detection components 600 , and the two groups of detection components 600 are arranged along the moving direction of the ACF film 200 .

[0033] The ACF film 200 cutting and slitting equipment also includes a protective film assembly, which includes a protective film shaft 120 and a protective film 210. The protective film 210 is wound on the protective film shaft 120. The ACF film 200 extending from the unwinding shaft 100 and the protective film 210 extending from the protective film shaft 120 are adhered together and then enter the cutting tool 700 for cutting together.

[0034] like Figure 1 As shown, specifically, the ACF film cutting and slitting device further includes a first roller 400, a second roller 410, a third roller 420, a fourth roller 430, and a fifth roller 440. The first roller 400 is disposed near the unwinding shaft 100 and is located below the unwinding shaft 100, and the second roller 410 is disposed near the protective film shaft 120 and is located above the protective film shaft 120. The ACF film starts from the unwinding shaft 100 and is overlapped on the first roller 400 and the second roller 410 in sequence. The protective film 210 starts from the protective film shaft 120 and is overlapped on the second roller 410. The ACF film 200 and the protective film 210 are adhered to each other at the second roller 410. The third roller 420 is arranged on the upper side of the second roller 410. The ACF film 200 and the protective film 210 change to a horizontal movement direction after passing through the third roller 420. The first group of detection components 600 is arranged in the horizontal section of the ACF film 200 and the protective film 210; the fourth roller 430 is arranged behind the first group of detection components 600, and the fourth roller 430 contacts the adhesive surface of the ACF film 200. In order to prevent the ACF film 200 from adhering to the fourth roller 430, the fourth roller 430 is coated with an electrostatic layer. After passing through the fourth roller 430, the ACF film 200 and protective film 210 change their direction of motion to a nearly vertical orientation. The second set of detection assemblies 600 is positioned at this section of the ACF film 200 and protective film 210. The fifth roller 440 is positioned after the second set of detection assemblies 600 and is used to change the direction of motion of the ACF film 200 and protective film 210 to a horizontal orientation, thereby facilitating cutting by the cutting blades 700 positioned above and below.

[0035] like Figure 1 As shown, in this embodiment, the ACF film cutting and slitting equipment further includes two edge material machines 500 , which are used to wind the edge material of the ACF film 200 and the protective film 210 after cutting.

[0036] like Figure 1As shown, there are two groups of roller assemblies. After being cut by the cutting tool 700, the ACF film 200 and the protective film 210 that are stuck together will be separated (after being cut into thin strips with smaller width, the adhesion will become smaller, and the ACF film 200 and the protective film 210 will automatically separate). The two groups of roller assemblies are used to separate the ACF film 200 and the protective film 210 into strips respectively. The two groups of roller assemblies are arranged up and down between the cutting tool 700 and the winding shaft 110.

[0037] like Figure 1 As shown, the roller assembly specifically includes a first roller 300, a second roller 310, a third roller 320, and a fourth roller 330. The heights of the first roller 300, the second roller 310, the third roller 320, and the fourth roller 330 decrease in sequence. The first roller 300, the second roller 310, the third roller 320, and the fourth roller 330 are sequentially spaced between the cutting blade 700 and the winding shaft 110, with the first roller 300 being closer to the cutting blade 700 and the fourth roller 330 being closer to the winding shaft 110. The design of the first roller 300, the second roller 310, the third roller 320, and the fourth roller 330 decreasing in sequence in height facilitates the transportation of the ACF film 200 and ensures smoothness during transportation, thereby preventing reverse peeling.

[0038] The height of the reel 110 is lower than that of the fourth roller 330, which facilitates reeling. Furthermore, the reel 110 is provided with a plurality of different areas, the number of which is equal to the number of ACF film strips cut from the ACF film 200, so that different ACF film strips can be reeled separately.

[0039] like Figure 3-6As shown, in this embodiment, the outer surface of the first roller 300 is provided with a plurality of first guide grooves 800 spaced apart, with the spacing between adjacent first guide grooves 800 set to 1 mm. The outer surface of the second roller 310 is provided with a plurality of second guide grooves 810 spaced apart, with the spacing between adjacent first guide grooves 800 set to 5 mm. The outer surface of the third roller 320 is provided with a plurality of third guide grooves 820 spaced apart, with the spacing between adjacent third guide grooves 820 set to 15 mm. The outer surface of the fourth roller 330 is provided with a plurality of fourth guide grooves 830 spaced apart, with the spacing between adjacent fourth guide grooves 830 set to 27.5 mm. This spacing arrangement effectively separates the multiple strips of ACF film 200 and protective film 210. As the strips of ACF film 200 and protective film 210 pass through the first roller 300, the second roller 310, the third roller 320, and the fourth roller 330 in sequence, the spacing between each strip of ACF film 200 and protective film 210 increases, thereby achieving a separating effect. The number of the first guide groove 800 , the second guide groove 810 , the third guide groove 820 , and the fourth guide groove 830 are all the same.

[0040] In this embodiment, the width of the first guide groove 800 is 0.45 mm, and the allowable tolerance is 0-0.05 mm; the width of the second guide groove 810 is 0.45 mm, and the allowable tolerance is 0-0.03 mm; the width of the third guide groove 820 is 0.45 mm, and the allowable tolerance is 0-0.03 mm; the width of the fourth guide groove 830 is 0.45 mm, and the allowable tolerance is 0-0.03 mm.

[0041] In this embodiment, the ACF film cutting and slitting equipment replaces the traditional left-right arrangement of cutting blades with a top-and-bottom arrangement. This arrangement reduces the likelihood of reverse peeling of the ACF film 200 during cutting, effectively improving the yield rate. Furthermore, the design of the first roller 300, the second roller 310, the third roller 320, and the fourth roller 330, with their decreasing heights, facilitates the transport of the ACF film 200 and ensures smooth transport of the film 200, thereby preventing reverse peeling. The equipment is capable of cutting the ACF film 200 into 0.4 mm thin strips and slitting multiple ACF film strips.

[0042] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. An ACF film cutting and slitting device, characterized in that: It includes an unwinding shaft (100), a rewinding shaft (110), a cutting tool (700), and a roller assembly. The ACF film (200) is wound on the unwinding shaft (100). The cutting tool (700) is arranged between the unwinding shaft (100) and the rewinding shaft (110) and is arranged in a vertical direction. It includes an upper knife (701) and a lower knife (702). A plurality of blades are arranged at intervals on the upper knife (701), and a plurality of blades are arranged at intervals on the lower knife (702). The blades on the upper knife (701) and the blades on the lower knife (702) are offset by 0.4 mm. The ACF film (200) passes through the cutting tool (700) horizontally, and the upper knife (701) and the lower knife (702) rotate, thereby cutting the ACF film (200) into a plurality of 0.4 mm thin strips. The cut ACF film strips are separated into strips by a roller assembly and are each wound up on a corresponding winding shaft (110).

2. The ACF film cutting and slitting equipment according to claim 1, characterized in that: The invention also includes a detection component (600), wherein the detection component (600) includes a lens and an LED light, wherein the lens and the LED light are arranged relative to each other, and the ACF film (200) passes between the lens and the LED light, wherein the LED light is used to provide lighting, and the lens performs appearance detection on the ACF film (200).

3. The ACF film cutting and slitting equipment according to claim 2, characterized in that: The detection components (600) are provided in two groups, and the two groups of detection components (600) are arranged along the direction of movement of the ACF film (200).

4. The ACF film cutting and slitting equipment according to claim 3, characterized in that: The invention also includes a protective film assembly, wherein the protective film assembly includes a protective film shaft (120) and a protective film (210), wherein the protective film (210) is wound on the protective film shaft (120), and the ACF film (200) extending from the unwinding shaft (100) and the protective film (210) extending from the protective film shaft (120) are bonded together and then enter the cutting tool (700) for cutting.

5. The ACF film cutting and slitting equipment according to claim 4, characterized in that: The roller assembly is provided with two groups. After being cut by the cutting tool (700), the ACF film (200) and the protective film (210) that are stuck together are separated. The two groups of roller assemblies are used to separate the ACF film (200) and the protective film (210) respectively.

6. The ACF film cutting and slitting equipment according to claim 1, characterized in that: It also includes a scrap machine (500), which is used to wind the scraps after the ACF film is cut.

7. The ACF film cutting and slitting equipment according to claim 5, characterized in that: The roller assembly comprises a first roller (300), a second roller (310), a third roller (320), and a fourth roller (330). The heights of the first roller (300), the second roller (310), the third roller (320), and the fourth roller (330) decrease in sequence.

8. The ACF film cutting and slitting equipment according to claim 7, characterized in that: The first roller (300) is provided with a plurality of first guide grooves (800) at intervals, and the spacing between two adjacent first guide grooves (800) ranges from 0.8 to 1.2 mm; the second roller (310) is provided with a plurality of second guide grooves (810) at intervals, and the spacing between two adjacent second guide grooves (810) ranges from 4.5 to 5.5 mm; the third roller (320) is provided with a plurality of third guide grooves (820) at intervals, and the spacing between two adjacent third guide grooves (820) ranges from 14.5 to 15.5 mm; the fourth roller (330) is provided with a plurality of fourth guide grooves (830) at intervals, and the spacing between two adjacent fourth guide grooves (830) ranges from 27 to 28 mm; The reel (110) is disposed at the end of the fourth guide groove (830) and is used to reel in the ACF film strip guided by the guide groove.

9. The ACF film cutting and slitting equipment according to claim 8, characterized in that: The width of the first guide groove (800) ranges from 0.45 to 0.5 mm, the width of the second guide groove (810) ranges from 0.45 to 0.48 mm, the width of the third guide groove (820) ranges from 0.45 to 0.48 mm, and the width of the fourth guide groove (830) ranges from 0.45 to 0.48 mm.

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