Anisotropic conductive film reel

Abstract

The utility model relates to the field of reels, in particular to an anisotropic conductive adhesive film reel which comprises a reel base and a floating ring, the reel base comprises a winding shaft, the floating ring coaxially sleeves the periphery of the winding shaft, an anisotropic conductive adhesive film is wound on the outer ring of the floating ring, and a sliding block is connected to the inner ring of the floating ring; a sliding arc groove allowing the sliding block to slide is formed in the peripheral face of the winding shaft. Through the arrangement of the disc seat and the floating ring, the anisotropic conductive adhesive film can balance the tension, adjust the tightness and stably wind the periphery of the floating ring, so that the anisotropic conductive adhesive film keeps stable tension and flatness in the processing process, and the processing difficulty and the process complexity of the anisotropic conductive adhesive film are reduced.

Description

Technical Field

[0001] This application relates to the field of reels, and in particular to an anisotropic conductive film reel. Background Art

[0002] An anisotropic conductive film is a special coating material mainly used for conductive connection between substrates. Its characteristic is that current can only flow between substrates in the direction of the vertical axis, while remaining insulated in the horizontal direction.

[0003] When the anisotropic conductive film is directly wound around the outer periphery of the reel, the anisotropic conductive film has a certain tension, resulting in the situation of being tight inside and loose outside easily occurring during the continuous winding of the anisotropic conductive film around the outer periphery of the reel, making it difficult to maintain stable tension and flatness of the anisotropic conductive film during the processing, thus increasing the processing difficulty and process complexity of the anisotropic conductive film. Utility Model Content

[0004] In order to improve the situation of being tight inside and loose outside easily occurring when the anisotropic conductive film is continuously wound around the outer periphery of the reel, this application provides an anisotropic conductive film reel.

[0005] An anisotropic conductive film reel provided by this application adopts the following technical solutions:

[0006] An anisotropic conductive film reel includes a disk base and a floating ring. The disk base includes a winding shaft. The floating ring is coaxially sleeved on the outer periphery of the winding shaft. The outer ring of the floating ring is for winding the anisotropic conductive film. A slider is connected to the inner ring of the floating ring, and a sliding arc groove for the slider to slide is provided on the outer peripheral surface of the winding shaft.

[0007] By adopting the above technical solutions, the floating ring is coaxially sleeved on the outer periphery of the winding shaft, the slider is embedded in the sliding arc groove, the anisotropic conductive film is wound around the outer peripheral surface of the floating ring, the anisotropic conductive film has a certain tension, the floating ring rotates around the axis of the winding shaft under the tension of the anisotropic conductive film, driving the slider to slide along the inner wall of the sliding arc groove, realizing the release of the tension of the anisotropic conductive film. The floating ring has a certain activity range, resulting in the anisotropic conductive film being able to adjust the tension evenly, adjust the tightness, and be stably wound around the outer periphery of the floating ring, so that the anisotropic conductive film maintains stable tension and flatness during the processing, thereby reducing the processing difficulty and process complexity of the anisotropic conductive film.

[0008] Optionally, the disk base further includes two positioning disks and two positioning rings. The two positioning rings are coaxially connected to both sides in the axial direction of the winding shaft respectively. The positioning rings correspond to the positioning disks one by one. The inner ring of the positioning disk is sleeved on the outer ring wall of the positioning ring. The outer ring wall of the positioning ring is fixed on the inner ring wall of the positioning disk by ultrasonic welding. A positioning space for winding the anisotropic conductive film is left between the two positioning disks.

[0009] By adopting the above technical solution, two positioning rings are coaxially connected to both sides of the winding shaft axis in a one-to-one correspondence, and the positioning rings correspond to the positioning disks one by one. The inner ring of the positioning disk is coaxially sleeved on the outer ring of the positioning ring, and the outer ring wall of the positioning ring abuts against the inner ring wall of the positioning disk to form a limit. The inner ring wall of the positioning ring is fixed to the inner ring wall of the positioning disk by ultrasonic welding, realizing the fixation between the positioning ring and the positioning disk. At the same time, a positioning space for winding the anisotropic conductive film is left between the two positioning disks, so that when the anisotropic conductive film is wound around the outer ring wall of the floating ring, it is not easy to shift, thereby improving the stability of the anisotropic conductive film wound around the outer ring wall of the floating ring.

[0010] Optionally, a first positioning post is connected to the surface of the positioning disk facing the winding shaft. A first positioning hole for the first positioning post to be embedded is formed on the surface of the winding shaft. The axis of the first positioning hole coincides with the axis of the winding shaft, and the first positioning hole penetrates through the outer wall of the winding shaft along its own axis.

[0011] By adopting the above technical solution, when the inner ring of the positioning disk is sleeved on the outer peripheral surface of the positioning ring in a one-to-one correspondence, the first positioning post is embedded in the first positioning hole, and the outer circumferential wall of the first positioning post abuts against the inner wall of the first positioning hole to form a fixation. The first positioning post is ultrasonically welded and fixed to the inner wall of the first positioning hole to form a fixation, realizing the fixation between the positioning disk and the winding shaft, making the positioning disk not easy to break away from the positioning ring, thereby improving the structural strength of the anisotropic conductive film reel.

[0012] Optionally, a second positioning post is connected to the surface of the positioning disk facing the winding shaft. The second positioning post and the first positioning post are located on both sides of the axis of the positioning disk, and the diameter of the second positioning post is smaller than the diameter of the first positioning post. A second positioning hole for the second positioning post to be embedded is formed on the surface of the winding shaft. The axis of the second positioning hole is parallel to the axis of the first positioning hole, and the second positioning hole penetrates through the outer wall of the winding shaft along its own axis.

[0013] By adopting the above technical solution, when the inner ring of the positioning disk is coaxially sleeved on the outer peripheral surface of the positioning ring in a one-to-one correspondence, the second positioning post is embedded in the second positioning hole, and the outer circumferential wall of the second positioning post abuts against the inner wall of the second positioning hole to form a limit. The first positioning post and the second positioning post are located on both sides of the axis direction of the positioning disk, making the positioning disk not easy to shift on the surface of the winding shaft, realizing the preliminary limit of the positioning disk on the winding shaft. The inner wall of the second positioning post is fixed to the inner wall of the second positioning hole by ultrasonic welding to form a fixation, further improving the limit stability of the positioning disk on the positioning ring.

[0014] Optionally, a plurality of abutting rods are connected to the disk surface of the positioning disk facing the positioning space at intervals. The plurality of abutting rods are evenly distributed at intervals around the axis of the positioning disk, and the rod surface of the abutting rod can abut against the end face of the anisotropic conductive film to form a limit.

[0015] By adopting the above technical solution, multiple abutting rods are evenly distributed at intervals around the axis of the positioning disk. The rod surface of the abutting rod protruding from the disk surface of the positioning disk can abut against the surface of the anisotropic conductive film to form a limit, so that the anisotropic conductive film is not easily separated from the outer peripheral surface of the floating ring, ensuring the limit stability of the anisotropic conductive film on the outer peripheral surface of the floating ring; at the same time, the anisotropic conductive film is not easily bonded to the disk surface of the positioning disk, realizing the isolation between the anisotropic conductive film and the positioning disk, thereby improving the stability of the anisotropic conductive film wound around the outer peripheral surface of the floating ring.

[0016] Optionally, a plurality of calibration grooves are spaced apart on the surface of the positioning disk facing away from the positioning space. The plurality of calibration grooves are evenly distributed at intervals around the axis of the positioning disk. When the first positioning rod is inserted into the first positioning hole and the second positioning rod is inserted into the second positioning hole, the calibration grooves on the two positioning disks correspond to each other one by one.

[0017] By adopting the above technical solution, when the first positioning rod is inserted into the first positioning hole and the second positioning rod is inserted into the second positioning hole, the calibration grooves on the two positioning disks correspond to each other one by one, so that the staff does not need to repeatedly adjust and align, thereby improving the installation efficiency of the anisotropic conductive film reel.

[0018] Optionally, the disk base further includes a fixing ring. The outer ring of the fixing ring is coaxially embedded in the inner ring of the winding shaft. The outer ring wall of the fixing ring is connected with a tightening arc rod. The inner ring wall of the winding shaft is provided with a tightening arc groove for the tightening arc rod to be embedded. The outer wall of the tightening arc rod abuts against the inner wall of the tightening arc groove to form a limit, and the inner ring wall of the fixing ring is for the output shaft to pass through.

[0019] By adopting the above technical solution, the fixing ring is coaxially embedded in the inner ring of the winding shaft. The outer ring wall of the fixing ring abuts against the inner ring wall of the winding shaft to form a limit. At the same time, the tightening arc rod is embedded in the tightening arc groove, and the outer wall of the tightening arc rod abuts against the inner wall of the tightening arc groove to form a limit, so that the fixing ring is not easily separated from the winding shaft, thereby improving the connection stability between the fixing ring and the winding shaft; at the same time, the inner ring wall of the fixing ring is for the output shaft to pass through, and the inner ring wall of the fixing ring abuts against the outer wall of the output shaft to form a limit, thereby improving the connection stability between the anisotropic conductive film reel and the output shaft.

[0020] Optionally, the outer ring wall of the fixing ring is connected with a guiding block. The inner ring wall of the winding shaft is provided with a guiding groove for the guiding block to be embedded. When the guiding block is embedded in the guiding groove, it guides the tightening arc rod to be embedded in the tightening arc groove.

[0021] By adopting the above technical solution, when the fixing ring is coaxially embedded in the inner ring of the winding shaft, the guiding block is embedded in the guiding groove and guides the tightening arc rod to be embedded in the tightening arc groove, without the need to adjust the position of the fixing ring in the inner ring of the winding shaft, thereby improving the installation efficiency of the anisotropic conductive film reel.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The setting of the disk base and the floating ring enables the anisotropic conductive film to balance the tension, adjust the tightness, and stably wind around the outer periphery of the floating ring, so that the anisotropic conductive film maintains stable tension and flatness during the processing, thereby reducing the processing difficulty and process complexity of the anisotropic conductive film.

[0024] 2. The setting of the positioning disk and the positioning ring makes it difficult for the anisotropic conductive film to shift when winding around the outer wall of the floating ring, thereby improving the stability of the anisotropic conductive film winding around the outer wall of the floating ring.

[0025] 3. The setting of the first positioning post and the first positioning hole realizes the fixation between the positioning disk and the winding shaft, making it difficult for the positioning disk to disengage from the positioning ring, thereby improving the structural strength of the anisotropic conductive film reel. Description of the Drawings

[0026] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application.

[0027] Figure 2 is an exploded view in the embodiment of the present application.

[0028] Description of the reference numerals: 1, disk base; 11, winding shaft; 111, sliding arc groove; 112, first positioning hole; 113, second positioning hole; 114, abutting arc groove; 115, guiding groove; 12, fixing ring; 13, positioning disk; 131, calibration groove; 132, positioning space; 14, positioning ring; 2, floating ring; 3, slider; 31, buffer surface; 4, first positioning post; 5, second positioning post; 6, abutting rod; 7, abutting arc rod; 8, guiding block; 81, positioning surface. Detailed Description of the Embodiment

[0029] The following is a further detailed description of the present application in conjunction with the attached Figure 1-2 drawings.

[0030] The embodiment of the present application discloses an anisotropic conductive film reel. Referring to Figure 1 and Figure 2 , the anisotropic conductive film reel includes a disk base 1 and a floating ring 2. In the embodiment of the present application, the materials of the disk base 1 and the floating ring 2 are both polystyrene. The disk base 1 includes a winding shaft 11, a fixing ring 12, two positioning disks 13, and two positioning rings 14. The inner circle of the floating ring 2 is coaxially sleeved on the outer circle of the winding shaft 11. The outer circle of the floating ring 2 is for winding the anisotropic conductive film. A slider 3 is integrally formed and fixed on the inner wall of the inner circle of the floating ring 2. A sliding arc groove 111 for the slider 3 to slide is provided on the outer peripheral surface of the winding shaft 11. The end surface of the slider 3 protruding from the floating ring 2 is provided with a buffer surface 31. The buffer surface 31 is arc-shaped. The buffer surface 31 abuts against the inner wall of the sliding arc groove 111, reducing the wear between the slider 3 and the inner wall of the sliding arc groove 111, thereby prolonging the service life of the anisotropic conductive film reel.

[0031] Reference Figure 2 The anisotropic conductive film is wound on the outer circumference of the floating ring 2. The anisotropic conductive film has a certain tension. The floating ring 2 rotates around the axis of the winding shaft 11 under the tension of the anisotropic conductive film, driving the slider 3 to slide along the inner wall of the sliding arc groove 111 to release the tension of the anisotropic conductive film. The floating ring 2 has a certain activity range, which causes the anisotropic conductive film to balance the tension and adjust the tightness and stably wind around the outer circumference of the floating ring 2, so that the anisotropic conductive film maintains a stable tension and flatness during the processing, thereby reducing the processing difficulty and process complexity of the anisotropic conductive film.

[0032] Reference Figure 2 The two positioning rings 14 are coaxially integrally formed and fixed on both sides of the axial direction of the winding shaft 11 in a one-to-one manner. The positioning rings 14 correspond to the positioning disk 13 in a one-to-one manner. The outer ring of the positioning ring 14 is coaxially sleeved on the inner ring of the positioning disk 13. The outer ring wall of the positioning ring 14 is fixed to the inner ring wall of the positioning disk 13 by ultrasonic welding, so that the positioning disk 13 is not easy to separate from the outer ring of the positioning ring 14, thereby improving the connection stability between the positioning disk 13 and the positioning ring 14.

[0033] Reference Figure 2 The surface of the positioning plate 13 facing the winding shaft 11 is integrally formed with a positioning column 4, the axis of the positioning column 4 and the axis of the winding shaft 11 are parallel to each other, and the surface of the winding shaft 11 is provided with a positioning hole 112 for the positioning column 4 to be embedded, the axis of the positioning hole 112 coincides with the axis of the positioning column 4, and the positioning hole 112 passes through the outer wall of the winding shaft 11 along its own axis. The number of the positioning holes 112 can be one, two or more. In the embodiment of the present application, the number of the positioning holes 112 is two, and the two positioning holes 112 are located on both sides of the axis of the winding shaft 11. The surface of the positioning plate 13 facing the winding shaft 11 is integrally formed with a positioning column 4. The positioning column 25, the axis of the positioning column 25 and the axis of the positioning column 14 are parallel to each other, the positioning column 25 and the positioning column 14 are located on both sides of the axis of the winding shaft 11, and the diameter of the positioning column 25 is smaller than the diameter of the positioning column 14, and a positioning hole 213 for the positioning column 25 to be embedded is provided on the surface of the winding shaft 11, and the axis of the positioning hole 213 and the axis of the positioning hole 112 are parallel to each other, and the positioning hole 213 passes through the outer wall of the winding shaft 11 along its own axis. The number of the positioning holes 213 can be one, two or more. In the embodiment of the present application, the number of the positioning holes 213 is two, and the two positioning holes 213 are located on both sides of the axis of the winding shaft 11.

[0034] Reference Figure 2When the inner ring of the positioning disk 13 is coaxially sleeved on the outer ring of the positioning ring 14, the positioning column 14 is embedded in one of the positioning holes 112, and the positioning column 25 is embedded in one of the positioning holes 113. The circumferential outer wall of the positioning column 14 is pressed against the inner wall of the positioning hole 112, and the circumferential outer wall of the positioning column 25 is pressed against the inner wall of the positioning hole 2 113, thereby realizing the preliminary fixation between the positioning disk 13 and the winding shaft 11. At the same time, the positioning column 14 and the positioning column 25 are fixed in the positioning hole 112 and the positioning hole 2 113 by ultrasonic welding, so that the positioning disk 13 is not easy to separate from the winding shaft 11, thereby improving the connection stability between the positioning disk 13 and the winding shaft 11.

[0035] Reference Figure 1 and Figure 2 A plurality of calibration grooves 131 are spaced apart on surfaces of the positioning disk 13 that are away from each other. The plurality of calibration grooves 131 are evenly spaced around the axis of the positioning disk 13. When the first positioning rod is embedded in the first positioning hole 112 and the second positioning rod is embedded in the second positioning hole 113, the calibration grooves 131 on the two positioning disks 13 correspond to each other one by one, so that the user does not need to repeatedly adjust the position of the positioning disk 13 on the positioning ring 14, thereby improving the installation efficiency of the anisotropic conductive film reel.

[0036] Reference Figure 1 and Figure 2 A positioning space 132 for winding the anisotropic conductive film is reserved between the two positioning plates 13. The inner wall of the positioning space 132 limits the anisotropic conductive film so that the anisotropic conductive film can be stably wound on the outer wall of the floating ring 2, thereby increasing the winding speed of the anisotropic conductive film on the outer wall of the floating ring 2.

[0037] Reference Figure 1 and Figure 2 A plurality of abutment rods 6 are integrally formed and fixed on the surface of the positioning disk 13 facing the positioning space 132. The plurality of abutment rods 6 are evenly spaced around the axis of the positioning disk 13. One end of the abutment rod 6 in the length direction faces the axis of the positioning disk 13, and the other end of the abutment rod 6 in the length direction extends in a direction away from the axis of the positioning disk 13. The rod surface of the abutment rod 6 protruding from the positioning disk 13 can abut the anisotropic conductive film, making it difficult for the anisotropic conductive film to adhere to the surface of the positioning disk 13, thereby improving the stability of the anisotropic conductive film wound on the outer peripheral surface of the floating ring 2.

[0038] Reference Figure 2 The outer ring wall of the fixing ring 12 is coaxially embedded in the inner ring wall of the winding shaft 11, and the outer ring wall of the fixing ring 12 is pressed against the inner ring wall of the winding shaft 11 to form a fixation, and the inner ring wall of the fixing ring 12 is for the output shaft to pass through; the outer ring wall of the fixing ring 12 is integrally formed with a pressing arc rod 7, and the inner ring wall of the winding shaft 11 is provided with a pressing arc groove 114 for the pressing arc rod 7 to be inserted, and the outer wall of the pressing arc rod 7 can press against the inner wall of the pressing arc groove 114 to form a fixation, thereby further improving the pressing force between the fixing ring 12 and the winding shaft 11.

[0039] Referring to Figure 2 , the number of the pressing arc rods 7 can be one, two or more. In the embodiment of the present application, the number of the pressing arc rods 7 is two, and the two pressing arc rods 7 are evenly distributed at intervals around the axis of the fixing ring 12; a guiding block 8 is integrally formed and fixed on the outer peripheral wall of the positioning ring 14, and a guiding groove 115 for the guiding block 8 to be embedded is formed in the inner peripheral wall of the winding shaft 11. The guiding groove 115 penetrates through the outer wall of the winding shaft 11 in the depth direction. A positioning surface 81 is provided on the end surface of the guiding block 8 protruding from the outer peripheral wall of the positioning ring 14. The positioning surface 81 is arc-shaped. The positioning surface 81 guides the guiding block 8 to be embedded in the guiding groove 115, reducing the wear between the guiding block 8 and the inner wall of the guiding groove 115, thereby improving the installation efficiency between the fixing ring 12 and the winding shaft 11.

[0040] The implementation principle of an anisotropic conductive film reel in the embodiment of the present application is as follows: the anisotropic conductive film is wound around the outer peripheral surface of the floating ring 2. The anisotropic conductive film has a certain tension. The floating ring 2 rotates around the axis of the winding shaft 11 under the tension of the anisotropic conductive film, driving the slider 3 to slide along the inner wall of the sliding arc groove 111, realizing the release of the tension of the anisotropic conductive film. The floating ring 2 has a certain activity range, resulting in that the anisotropic conductive film can balance the tension, adjust the tightness and stably wind around the outer peripheral surface of the floating ring 2, so that the anisotropic conductive film maintains stable tension and flatness during the processing, thereby reducing the processing difficulty and process complexity of the anisotropic conductive film; at the same time, the rod surface of the abutting rod 6 protruding from the positioning disk 13 can abut against the anisotropic conductive film, making it difficult for the anisotropic conductive film to adhere to the disk surface of the positioning disk 13, thereby improving the stability of the anisotropic conductive film wound around the outer peripheral surface of the floating ring 2.

[0041] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. Anisotropic conductive film reel, characterized in that: It includes a disk base (1) and a floating ring (2). The disk base (1) includes a winding shaft (11). The floating ring (2) is coaxially sleeved on the outer periphery of the winding shaft (11). The outer ring of the floating ring (2) is for winding an anisotropic conductive film. A slider (3) is connected to the inner ring of the floating ring (2). A sliding arc groove (111) for the slider (3) to slide is provided on the outer peripheral surface of the winding shaft (11).

2. The anisotropic conductive film reel according to claim 1, wherein: The disk base (1) further includes two positioning disks (13) and two positioning rings (14). The two positioning rings (14) are coaxially connected to both sides in the axial direction of the winding shaft (11) in a one-to-one correspondence. The positioning rings (14) and the positioning disks (13) are in a one-to-one correspondence. The inner ring of the positioning disk (13) is sleeved on the outer ring wall of the positioning ring (14). The outer ring wall of the positioning ring (14) is fixed to the inner ring wall of the positioning disk (13) by ultrasonic welding. A positioning space (132) for winding an anisotropic conductive film is left between the two positioning disks (13).

3. The anisotropic conductive film reel according to claim 2, wherein: A first positioning post (4) is connected to the surface of the positioning disk (13) facing the winding shaft (11). A first positioning hole (112) for the first positioning post (4) to be embedded is provided on the surface of the winding shaft (11). The axis of the first positioning hole (112) coincides with the axis of the winding shaft (11). The first positioning hole (112) penetrates the outer wall of the winding shaft (11) along its own axis.

4. The anisotropic conductive film reel according to claim 3, wherein: A second positioning post (5) is connected to the surface of the positioning disk (13) facing the winding shaft (11). The second positioning post (5) and the first positioning post (4) are located on both sides of the axis of the positioning disk (13), and the diameter of the second positioning post (5) is smaller than that of the first positioning post (4). A second positioning hole (113) for the second positioning post (5) to be embedded is provided on the surface of the winding shaft (11). The axis of the second positioning hole (113) is parallel to the axis of the first positioning hole (112). The second positioning hole (113) penetrates the outer wall of the winding shaft (11) along its own axis.

5. The anisotropic conductive film reel according to claim 2, characterized in that: A plurality of abutting rods (6) are connected to the disk surface of the positioning disk (13) facing the positioning space (132) at intervals. The plurality of abutting rods (6) are evenly distributed around the axis of the positioning disk (13) at intervals. The rod surface of the abutting rod (6) can abut against the end face of the anisotropic conductive film to form a limit.

6. The anisotropic conductive film reel according to claim 4, characterized in that: A plurality of calibration grooves (131) are provided on the surface of the positioning disk (13) facing away from the positioning space (132) at intervals. The plurality of calibration grooves (131) are evenly distributed around the axis of the positioning disk (13) at intervals. When the first positioning post (4) is embedded in the first positioning hole (112) and the second positioning post (5) is embedded in the second positioning hole (113), the calibration grooves (131) on the two positioning disks (13) correspond to each other one by one.

7. The anisotropic conductive film reel according to claim 1, wherein: The disk base (1) further includes a fixing ring (12). The outer ring of the fixing ring (12) is coaxially embedded in the inner ring of the winding shaft (11). A tightening arc rod (7) is connected to the outer ring wall of the fixing ring (12). A tightening arc groove (114) for the tightening arc rod (7) to be embedded is provided on the inner ring wall of the winding shaft (11). The outer wall of the tightening arc rod (7) abuts against the inner wall of the tightening arc groove (114) to form a limit, and the inner ring wall of the fixing ring (12) is for the output shaft to pass through.

8. The anisotropic conductive film reel according to claim 7, wherein: A guide block (8) is connected to the outer peripheral wall of the fixed ring (12), and a guide groove (115) for the guide block (8) to be embedded is formed in the inner peripheral wall of the winding shaft (11). When the guide block (8) is embedded in the guide groove (115), the abutting arc rod (7) is guided to be embedded in the abutting arc groove (114).

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