ACF attaching and pressing device

Abstract

The present application relates to the technical field of laminating machines, including an ACF laminating and pressing device, comprising a frame and a laminating platform, a pressing head assembly mounted above the laminating platform, a material tape reeling and unreeling assembly and a cutting mechanism mounted on one side of the pressing head assembly; the pressing platform is used to place the panel to be pressed, an adsorption mechanism is mounted on the pressing platform, and the ACF is pressed onto the panel via the pressing head assembly; the pressing head assembly comprises a pressing head body and an elastic buffer layer, the top of the pressing head body is connected to a downward pressure cylinder, the bottom of the pressing head body has a mounting slot, and the mounting slot adopts an inlaid slot body; a unwinding device and a rewinding device are mounted on the pressing head assembly; a heating mechanism is mounted on the pressing head assembly, and the heating mechanism adopts a non-contact heating method, with heating ports located on both sides of the pressing head assembly; the material tape reeling and unreeling assembly comprises an unwinding section and a rewinding section, the unwinding section unwinds the ACF attached to the panel, and the rewinding section rewinds the carrier tape, and the cutting mechanism is mounted on one end of the material tape reeling and unreeling assembly. The present application greatly improves the laminating and laminating accuracy and efficiency of the ACF.

Description

Technical Field

[0001] The present application relates to the technical field of attaching machines, and in particular to an ACF attaching and pressing device. Background Art

[0002] With the advancement of communications and electronics technology, the application of ACF (anisotropic conductive film) is becoming increasingly widespread. The production of mobile phones, home appliances, and automotive equipment all rely on ACF bonding and lamination. In the LCD and OLED panel industry, bonding requires silicone rubber cushioning during the pressing process to reduce the risk of ACF damage and breakage caused by direct contact between the pressing blade and the cell. Traditional silicone rubber hook-type mounting methods, where the hooks for attaching the silicone rubber are placed on either side of the pressing blade, are prone to damage, wear, and cracking, requiring regular replacement. Alternatively, Teflon tape is applied to the ACF pressing blade surface, creating a hard-to-hard contact, which increases the frequency of ACF bonding failures.

[0003] Prior art often employs a silicone cushioning strip on the blade of an ACF press. Chinese Patent CN108227254A discloses an ACF laminating and bonding device and attachment mechanism. This device addresses the issue of poor bonding caused by the cushioning strip at the front of the blade moving relative to the blade during laminating. However, replacing the cushioning strip after extended use requires stopping the machine to disassemble the strip or replacing the entire press, a cumbersome operation that impacts the efficiency of ACF laminating and bonding. Summary of the Invention

[0004] In order to overcome the problems existing in the prior art, the present application provides an ACF attaching and pressing device.

[0005] The present application provides an ACF attachment and lamination device that adopts the following technical solution:

[0006] An ACF attaching and laminating device includes a frame and a laminating platform mounted on the frame, a pressing head assembly is mounted above the laminating platform, a material tape retracting and releasing assembly is mounted on one side of the pressing head assembly, and a cutting mechanism is also mounted on one side of the material tape retracting and releasing assembly;

[0007] The pressing platform is used to place the panel to be pressed. The pressing platform is equipped with a suction mechanism for sucking the panel, and the ACF is pressed on the panel through a pressing head assembly.

[0008] The pressure head assembly includes a pressure head body and an elastic buffer layer, wherein the elastic buffer layer is located between the pressure head body and the panel, the top of the pressure head body is connected to the downward pressure cylinder, and the pressure head end at the bottom of the pressure head body is provided with a mounting groove for mounting the elastic buffer layer, wherein the mounting groove adopts a mosaic groove body, and the pressure head assembly is equipped with an unwinding device and a winding device for winding and unwinding the elastic buffer layer;

[0009] The heating mechanism is installed on the pressure head assembly, wherein the heating mechanism adopts a non-contact heating method, and the heating ports of the heating mechanism are located on both sides of the pressure head assembly;

[0010] The material tape unwinding and rewinding assembly includes an unwinding portion and a rewinding portion respectively located on the sides of the pressure head assembly, wherein the unwinding portion unwinds the ACF attached to the panel, and the rewinding portion rewinds the carrier tape for placing the ACF, and the cutting mechanism is installed at one end of the pressure head assembly close to the material tape unwinding and rewinding assembly.

[0011] By adopting the above technical solution, the panel to be laminated with ACF is placed on the laminating platform installed on the frame, and the adsorption mechanism of the laminating platform adsorbs the panel and fixes the panel on the laminating platform. The ACF is heated by non-contact heating mechanisms on both sides of the press head assembly and the ACF is laminated on the panel through the press head body with an elastic buffer layer. The material tape unwinding assembly installed on one side of the press head assembly is used to unwind the ACF and rewind the carrier tape for carrying the ACF. After unwinding a section of the ACF to be attached and laminated, the ACF on the carrier tape can be cut by the cutting mechanism so that the next section of ACF can be attached and laminated on the panel. The press head assembly is installed on the frame and is driven to rise and fall on the frame by the downward pressure cylinder on its top, thereby driving the ACF released from the material tape unwinding assembly to be attached and laminated on the panel. An installation groove is provided at the end of the pressure head body in the pressure head assembly to accommodate the elastic buffer layer. The installation groove adopts an inlaid groove body, which can allow the elastic buffer layer to be stably embedded in the installation groove. A unwinding device and a winding device for unwinding and winding the elastic buffer layer are provided on the pressure head assembly. The elastic buffer layer can be automatically replaced after long-term use. The replacement process does not require disassembling the pressure head assembly to achieve replacement of the elastic buffer layer.

[0012] Preferably, arc-shaped transitions are provided on both sides of the mounting groove at the bottom of the pressure head body, and a locking rod for locking the elastic buffer layer is installed on the bottom surface of the mounting groove. The locking rod is driven by a locking cylinder in the pressure head body and locked with the locking hole on the back of the elastic buffer layer.

[0013] By adopting the above technical solution, the arc-shaped transitions opened on both sides of the bottom mounting groove of the pressure head body can facilitate the movement of the elastic buffer layer on the mounting groove, facilitate the elastic buffer layer unwound by the unwinding device to enter the mounting groove, and facilitate the elastic buffer layer that needs to be replaced after use to enter the winding device for winding, and after the elastic buffer layer moves to the corresponding position in the mounting groove, the locking cylinder in the pressure head body drives the locking rod to cooperate with the locking hole on the back of the elastic buffer layer to lock, thereby avoiding the movement of the elastic buffer layer during the ACF pressing and affecting the pressing effect.

[0014] Preferably, the non-contact heating method is far infrared heating, wherein the heating device includes heating covers arranged on both sides of the press head assembly, infrared ray emitters are provided in the heating covers, and the heating ports of the heating covers face the bottom of the press head assembly.

[0015] By adopting the above technical solution, far-infrared heating can be used to emit far-infrared rays from both sides of the pressing assembly through the far-infrared emitter, and then be introduced from the heating port through the heating cover to heat the ACF at the bottom of the pressing head assembly facing the heating port, thereby achieving heated pressing of the ACF.

[0016] Preferably, the adsorption mechanism includes a plurality of adsorption holes located on the surface of the pressing platform and a vacuum pump inside the pressing platform connected to the adsorption holes through pipelines.

[0017] By adopting the above technical solution, the adsorption mechanism acts on the adsorption holes on the surface of the pressing platform through the pipeline under the action of the vacuum pump, and adsorbs and fixes the panel placed on the pressing platform.

[0018] Preferably, a cleaning mechanism is also installed on the surface of the pressing platform, including adsorption grooves distributed in an annular manner around the pressing platform and a purge mechanism slidably installed on the pressing platform, wherein the opening of the adsorption groove faces the center of the pressing platform, and the bottom of the adsorption groove is connected to a dust collecting box with a negative pressure pump, and the purge mechanism includes a purge rod with the same length as the pressing platform, and the bottom of the purge rod is evenly distributed with air outlets, and the bottom of the purge rod is connected by a support rod and a lifting rod, wherein the lifting rod can drive the purge rod to rise from the receiving groove where the purge mechanism is placed on the pressing platform, and a slider for fixing the support rod and the lifting rod is slidably installed in the receiving groove.

[0019] By adopting the above technical solution, the purge mechanism in the cleaning mechanism pushes the purge rod out of the receiving groove through the lifting rod connected to the bottom of the purge rod, and supports it with the support rod connected to the bottom of the purge rod. The bottom of the lifting rod and the bottom of the support rod are both rotated on the slider, and the slider is driven to move by the driving mechanism located in the receiving groove, so that the purge rod can be used to blow away impurities left on the surface along the pressing platform, and adsorb them into the dust collection box under the action of the negative pressure pump through the adsorption grooves opened around the pressing platform. The driving mechanism can be driven by a screw or a cylinder, and the attachment of ACF to the panel is generally carried out in a clean room or a dust-free workshop. The cleaning mechanism performs further cleaning on this basis, which can effectively improve the yield rate of panel processing.

[0020] Preferably, the mounting groove opened at the bottom of the pressing head assembly consists of a first groove body and multiple groups of second groove bodies with different depths located on the bottom surface of the first groove body, wherein the second groove body is located at the center of the pressing head assembly and has a depth greater than the depths on both sides.

[0021] By adopting the above technical solution, the mounting groove at the bottom of the pressing head assembly accommodates the main body of the elastic buffer layer through the first groove body, the second groove body located at the bottom of the first groove body is cooperated and connected with the protrusion on the back of the elastic buffer layer, and the depth of the second groove body located at the center of the pressing head assembly is greater than the depth of the second groove bodies on both sides thereof, so that the elastic buffer layer can be stably embedded in the mounting groove, avoiding the displacement of the elastic buffer layer in the width direction of the mounting groove.

[0022] Preferably, a limiting groove adapted to the ACF is provided on the contact surface between the elastic buffer layer and the ACF, and the inner side of the limiting groove is coated with a low surface energy coating.

[0023] Preferably, the low surface energy coating is a polytetrafluoroethylene coating.

[0024] By adopting the above technical solution, the limiting groove opened on the contact surface between the elastic buffer layer and the ACF can limit the ACF in its width direction, avoid its deformation in the width direction after being subjected to the pressure of the pressure head assembly, ensure the attachment accuracy of the ACF, avoid setting a low surface energy coating of polytetrafluoroethylene coating on the inner side of the limiting groove, and form a smooth and durable protective layer in the limiting groove, effectively preventing the ACF from adhering to the pressure head assembly.

[0025] Preferably, the elastic buffer layer is embedded in the mounting groove, and both sides of the buffer layer wound by the unwinding device are respectively provided with forming strips that cooperate with the second groove body on one side of the elastic buffer layer and the limiting groove on the other side, and reels for winding the forming strips are provided on both sides of the unwinding device.

[0026] By adopting the above technical solution, the elastic buffer layer wound in the unwinding device has protrusions and limiting grooves on both sides, and the shaping strips are used to cooperate with it so that the elastic buffer layer is not easily deformed when it is wound. The reels provided on both sides of the unwinding device can rewind the shaping strips on both sides during the process of unwinding the elastic buffer layer.

[0027] Preferably, the unwinding section and the winding section in the material tape unwinding and rewinding assembly are both located on one side of the pressure head body, wherein the cutting mechanism is located between the unwinding section and the rewinding section, the unwinding section includes an unwinding roller and a guide roller, wherein the unwinding roller unwinds the ACF with a carrier tape, the guide roller is wound with a carrier tape, and the guide roller guides the carrier tape to the rewinding section, the guide roller is driven by a cylinder to move along the length direction of the pressure head body, and a displacement sensor is installed at one end of the cylinder facing the guide roller, wherein the displacement sensor is used to sense the distance moved by the cylinder-driven guide roller, the cutting mechanism is installed at one end of the pressure head body close to the material tape unwinding and rewinding assembly, and includes a cutting bracket and a pneumatic cutting knife installed on the cutting bracket, the pneumatic cutting knife includes a cylinder and a knife body at the output end of the cylinder, wherein the knife body is close to one side of the ACF.

[0028] By adopting the above technical solution, the unwinding part in the material strip unwinding and rewinding assembly unwinds the ACF through the unwinding roller, and the guide roller is driven by the telescopic rod at the output end of the cylinder to transport the ACF along the length direction of the installation groove at the bottom of the pressure head body to fill the limiting groove at the bottom of the entire elastic buffer layer. After the displacement sensor detects that the guide roller has reached the position, the cutting mechanism cuts off the ACF on the carrier tape and drives the guide roller to reset to the side close to the unwinding roller. A tensioning structure is set on the rewinding roller to stably collect the carrier tape on the basis of cooperating with the movement of the guide roller.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] The present application provides an unwinding device and a rewinding device for rewinding and unwinding the elastic buffer layer on the pressure head assembly, so that the elastic buffer layer can be automatically replaced after long-term use. The replacement process does not require disassembling the pressure head assembly to achieve the replacement of the elastic buffer layer, which greatly improves the ACF lamination efficiency.

[0031] The present application uses the first groove body at the bottom of the pressing head assembly and the second groove body at the bottom thereof to cooperate with the protrusion on the back of the elastic buffer layer to stably embed the elastic buffer layer into the installation groove, thereby preventing the elastic buffer layer from shifting in the width direction of the installation groove. After the elastic buffer layer moves to the corresponding position in the installation groove, the locking cylinder in the pressing head body drives the locking rod to cooperate with the locking hole on the back of the elastic buffer layer to lock, thereby preventing the elastic buffer layer from moving along the length of the installation groove when pressing the ACF and affecting the pressing effect.

[0032] The present application sets up a material tape unwinding and rewinding assembly for unwinding ACF and rewinding a carrier tape for carrying ACF, and after unwinding a section of ACF to be attached and pressed, the ACF on the carrier tape can be cut through a cutting mechanism, thereby realizing automatic loading and attaching of ACF, greatly improving the degree of automation of the attaching and pressing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of an ACF attaching and pressing device;

[0034] Figure 2 It is a front view of an ACF attaching and pressing device;

[0035] Figure 3 yes Figure 2 Middle AA section;

[0036] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0037] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0038] Figure 6 The figure is a schematic diagram of the structure of an ACF attaching and pressing device without the frame and the back of the pressing head body.

[0039] Explanation of reference numerals: 1. frame; 2. pressing platform; 21. panel; 22. ACF; 23. cleaning mechanism; 231. adsorption tank; 2311. dust collecting box; 2312. negative pressure pump; 232. purge mechanism; 2321. purge rod; 2322. support rod; 2323. lifting rod; 2324. slider; 2325. receiving tank; 3. pressure head assembly; 31. pressure head body; 311. mounting groove; 3111. first tank body; 3112. second tank body; 312. arc transition; 313. locking rod; 314. locking cylinder; 32. elastic buffer layer; 321. limiting groove; 322. low Surface energy coating; 323, locking hole; 33, downward pressure cylinder; 34, unwinding device; 341, shaping strip; 342, reel; 35, winding device; 36, heating mechanism; 361, heating cover; 362, infrared ray emitter; 37, heating port; 4, material strip unwinding and taking-up assembly; 41, unwinding section; 411, unwinding roller; 412, guide roller; 413, cylinder; 414, displacement sensor; 42, winding section; 43, carrier tape; 5, cutting mechanism; 51, cutting bracket; 52, pneumatic cutting knife; 521, cutting cylinder; 522, knife body; 6, adsorption mechanism; 61, adsorption hole; 62, vacuum pump. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-6This application is described in further detail.

[0041] The embodiment of the present application discloses an ACF attaching and pressing device.

[0042] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6, an ACF attaching and pressing device, comprising a frame 1 and a pressing platform 2 installed on the frame 1, a pressing head assembly 3 is installed above the pressing platform 2, a material tape retracting and unloading assembly 4 is installed on one side of the pressing head assembly 3, and a cutting mechanism 5 is also installed on one side of the material tape retracting and unloading assembly 4; the pressing platform 2, the pressing platform 2 is used to place the panel 21 to be pressed, wherein the pressing platform 2 is installed with an adsorption mechanism 6 for adsorbing the panel 21, and the ACF 22 is pressed on the panel 21 through the pressing head assembly 3; the pressing head assembly 3, the pressing head assembly 3 includes a pressing head body 31 and an elastic buffer layer 32, wherein the elastic buffer layer 32 is located between the pressing head body 31 and the panel 21, the top of the pressing head body 31 is connected to the pressing cylinder 33, and the pressing head end at the bottom of the pressing head body 31 is provided with a An installation groove 311 of the elastic buffer layer 32, wherein the installation groove 311 adopts an inlaid groove body, and a reeling device 34 and a reeling device 35 for reeling and unreeling the elastic buffer layer 32 are installed on the press head assembly 3; a heating mechanism 36, the heating mechanism 36 is installed on the press head assembly 3, wherein the heating mechanism 36 adopts a non-contact heating method, and the heating port 37 of the heating mechanism 36 is located on both sides of the press head assembly 3; a material tape reeling and unreeling assembly 4, the material tape reeling and unreeling assembly 4 includes an unreeling portion 41 and a reeling portion 42 respectively located on the sides of the press head assembly 3, wherein the unreeling portion 41 unreels the ACF22 attached to the panel 21, and the reeling portion 42 reels the carrier tape 43 for placing the ACF22, and the cutting mechanism 5 is installed on one end of the press head assembly 3 close to the material tape reeling and unreeling assembly 4. The panel 21 to be laminated with the ACF 22 is placed on the laminating platform 2 mounted on the frame 1. The laminating platform 2's suction mechanism 6 absorbs the panel 21, securing it to the laminating platform 2. Non-contact heating mechanisms 36 on both sides of the pressing head assembly 3 heat the ACF 22, and the pressing head body 31 with an elastic buffer layer 32 presses the ACF 22 onto the panel 21. The tape unwinding assembly 4 mounted on one side of the pressing head assembly 3 unwinds the ACF 22 and rewinds the carrier tape 43 carrying the ACF 22. After unwinding a section of the ACF 22 to be laminated, the cutting mechanism 5 cuts the ACF 22 from the carrier tape 43, allowing the next section of ACF 22 to be laminated onto the panel 21. The pressing head assembly 3 is mounted on the frame 1 and is driven up and down on the frame 1 by a downward pressure cylinder 33 at its top, thereby driving the ACF 22 released from the tape unwinding assembly 4 to be laminated onto the panel 21. An installation groove 311 is provided at the end of the pressure head body 31 in the pressure head assembly 3 to accommodate the elastic buffer layer 32. The mosaic groove body used in the installation groove 311 can allow the elastic buffer layer 32 matched therewith to be stably embedded in the installation groove 311, and a unwinding device 34 and a winding device 35 for unwinding and winding the elastic buffer layer 32 are provided on the pressure head assembly 3. The elastic buffer layer 32 can be automatically replaced after long-term use. The replacement process does not require disassembling the pressure head assembly 3 to realize the replacement of the elastic buffer layer 32.

[0043] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 5 The mounting groove 311 at the bottom of the ram body 31 is provided with arcuate transitions 312 on both sides, and a locking rod 313 for locking the elastic buffer layer 32 is installed on the bottom surface of the mounting groove 311. The locking rod 313 is driven by a locking cylinder 314 in the ram body 31 to lock with a locking hole 323 on the back of the elastic buffer layer 32. The arcuate transitions 312 on both sides of the mounting groove 311 at the bottom of the ram body 31 facilitate the movement of the elastic buffer layer 32 on the mounting groove 311, making it easier for the elastic buffer layer 32 unwound by the unwinding device 34 to enter the mounting groove 311 and for the elastic buffer layer 32 to be replaced after use to enter the rewinding device 35 for rewinding. After the elastic buffer layer 32 moves to the corresponding position in the mounting groove 311, the locking cylinder 314 in the ram body 31 drives the locking rod 313 to cooperate with the locking hole 323 on the back of the elastic buffer layer 32 to lock, thereby preventing the elastic buffer layer 32 from moving during the pressing of the ACF22 and affecting the pressing effect.

[0044] Reference Figure 1 、 Figure 2 and Figure 3 The non-contact heating method is far-infrared heating, in which the heating device includes heating covers 361 arranged on both sides of the pressing head assembly 3. Infrared ray emitters 362 are installed in the heating covers 361, and the heating ports 37 of the heating covers 361 face the bottom of the pressing head assembly 3. The far-infrared heating method can emit far-infrared rays from both sides of the pressing assembly through the far-infrared emitters, pass through the heating covers 361, and be introduced through the heating ports 37 to heat the ACF22 at the bottom of the pressing head assembly 3, which is directly opposite the heating ports 37, thereby achieving heated pressing of the ACF22.

[0045] Reference Figure 1 and Figure 4 The adsorption mechanism 6 includes a plurality of adsorption holes 61 on the surface of the laminating platform 2 and a vacuum pump 62 connected to the adsorption holes 61 via pipes inside the laminating platform 2. Under the action of the vacuum pump 62, the adsorption mechanism 6 acts on the adsorption holes 61 on the surface of the laminating platform 2 through the pipes, adsorbing and fixing the panel 21 placed on the laminating platform 2.

[0046] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6A cleaning mechanism 23 is also installed on the surface of the pressing platform 2, including adsorption grooves 231 distributed in an annular manner around the pressing platform 2 and a purge mechanism 232 slidably installed on the pressing platform 2, wherein the opening of the adsorption groove 231 faces the center of the pressing platform 2, and the bottom of the adsorption groove 231 is connected to a dust collecting box 2311 with a negative pressure pump 2312, and the purge mechanism 232 includes a purge rod 2321 with the same length as the pressing platform 2, and air outlets are evenly distributed on the bottom of the purge rod 2321, and the bottom of the purge rod 2321 is connected to the support rod 2322 and the lifting rod 2323 through the support rod 2322, wherein the lifting rod 2323 can drive the purge rod 2321 to rise from the accommodating groove 2325 on the pressing platform 2 where the purge mechanism 232 is placed, and a slider 2324 for fixing the support rod 2322 and the lifting rod 2323 is slidably installed in the accommodating groove 2325. The purge mechanism 232 in the cleaning mechanism 23 pushes the purge rod 2321 out of the receiving groove 2325 via a lifting rod 2323 rotatably connected to the bottom of the purge rod 2321. The purge rod 2321 is supported by another supporting rod 2322 rotatably connected to the bottom of the purge rod 2321. The bottoms of the lifting rod 2323 and the supporting rod 2322 both rotate on a slider 2324. The slider 2324 is driven by a driving mechanism located in the receiving groove 2325 to move the purge rod 2321 along the pressing platform 2 to sweep away impurities left on the surface. These impurities are then adsorbed into the dust collection box 2311 by the suction grooves 231 formed around the pressing platform 2 under the action of the negative pressure pump 2312. The driving mechanism can be driven by a screw or a cylinder 413. The attachment of the ACF 22 to the panel 21 is generally performed in a clean room or dust-free workshop. The cleaning mechanism 23 further cleans the panel 21 based on this process, effectively improving the yield rate of the panel 21.

[0047] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The mounting groove 311 at the bottom of the pressing head assembly 3 consists of a first groove body 3111 and a plurality of second groove bodies 3112 with different depths located at the bottom surface of the first groove body 3111, wherein the second groove body 3112 is located at the center of the pressing head assembly 3 and has a depth greater than the depths on both sides. The mounting groove 311 at the bottom of the pressing head assembly 3 accommodates the main body of the elastic buffer layer 32 through the first groove body 3111, and the second groove body 3112 located at the bottom of the first groove body 3111 is matingly connected with the protrusion on the back of the elastic buffer layer 32. The depth of the second groove body 3112 at the center of the pressing head assembly 3 is greater than the depth of the second groove bodies 3112 on both sides thereof, which can stably embed the elastic buffer layer 32 into the mounting groove 311 and prevent the elastic buffer layer 32 from shifting in the width direction of the mounting groove 311.

[0048] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 A limiting groove 321 adapted to the ACF22 is provided on the contact surface between the elastic buffer layer 32 and the ACF22, and the inner side of the limiting groove 321 is coated with a low surface energy coating 322. The low surface energy coating 322 is made of polytetrafluoroethylene coating. The limiting groove 321 provided on the contact surface between the elastic buffer layer 32 and the ACF22 can limit the ACF22 in its width direction, avoid its deformation in the width direction after being subjected to the pressure of the pressure head assembly 3, ensure the attachment accuracy of the ACF22, and avoid setting the low surface energy coating 322 with polytetrafluoroethylene coating on the inner side of the limiting groove 321. It can form a smooth and durable protective layer in the limiting groove 321, effectively preventing the ACF22 from adhering to the pressure head assembly 3.

[0049] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The elastic buffer layer 32 is embedded in the mounting groove 311, and the buffer layer wound by the unwinding device 34 is provided with shaping strips 341 on both sides thereof, which cooperate with the second groove body 3112 on one side of the elastic buffer layer 32 and the limiting groove 321 on the other side. Furthermore, reels 342 for reeling up the shaping strips 341 are provided on both sides of the unwinding device 34. The elastic buffer layer 32 wound in the unwinding device 34 has protrusions and limiting grooves 321 on both sides thereof, respectively. The shaping strips 341 cooperate with the shaping strips 341, so that the elastic buffer layer 32 is not easily deformed when wound. The reels 342 provided on both sides of the unwinding device 34 are capable of reeling up the shaping strips 341 on both sides thereof during the unwinding process of the elastic buffer layer 32.

[0050] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 5The unwinding part 41 and the rewinding part 42 in the material strip unwinding and rewinding assembly 4 are both located on one side of the pressure head body 31, wherein the cutting mechanism 5 is located between the unwinding part 41 and the rewinding part 42, the unwinding part 41 includes an unwinding roller 411 and a guide roller 412, wherein the unwinding roller 411 unwinds the ACF22 with the carrier tape 43, the guide roller 412 is wound with the carrier tape 43, and the guide roller 412 guides the carrier tape 43 to the rewinding part 42, and the guide roller 412 is driven by the cylinder 413 to move along the length direction of the pressure head body 31 , and a displacement sensor is installed at one end of the cylinder 413 facing the guide roller 412, wherein the displacement sensor 414 is used to sense the distance that the cylinder 413 drives the guide roller 412 to move, and the cutting mechanism 5 is installed at one end of the pressure head body 31 close to the material strip retracting and unwinding component 4, including a cutting bracket 51 and a pneumatic cutting knife 52 installed on the cutting bracket 51, the pneumatic cutting knife 52 includes a cutting cylinder 521 and a knife body 522 at the output end of the cylinder 413, wherein the knife body 522 is close to the side of the ACF22. The unwinding part 41 in the material tape unwinding and rewinding assembly 4 unwinds the ACF22 through the unwinding roller 411. The guide roller 412 is driven by the telescopic rod at the output end of the cylinder 413 to transport the ACF22 along the length direction of the mounting groove 311 at the bottom of the pressure head body 31 to fill the entire limiting groove 321 at the bottom of the elastic buffer layer 32. After the displacement sensor detects that the guide roller 412 has reached the position, the cutting mechanism 5 cuts off the ACF22 on the carrier tape 43 and drives the guide roller 412 to reset to the side close to the unwinding roller 411. A tensioning structure is set on the winding roller to stably collect the carrier tape 43 on the basis of cooperating with the movement of the guide roller 412.

[0051] Working Principle: A panel 21 to be laminated with an ACF 22 is placed on the laminating platform 2 mounted on the frame 1. The laminating platform 2's suction mechanism 6 absorbs the panel 21, securing it to the laminating platform 2. Non-contact heating mechanisms 36 on either side of the pressing head assembly 3 heat the ACF 22 and press the ACF 22 onto the panel 21 via the pressing head body 31 with its elastic buffer layer 32. A tape unwinding assembly 4 mounted on one side of the pressing head assembly 3 unwinds the ACF 22 and rewinds the carrier tape 43 carrying the ACF 22. After unwinding a section of the ACF 22 to be laminated, the cutting mechanism 5 cuts the ACF 22 from the carrier tape 43, facilitating the lamination of the next section of ACF 22 onto the panel 21. The pressing head assembly 3 is mounted on the frame 1 and is driven up and down on the frame 1 by a downward pressure cylinder 33 at its top, thereby driving the ACF 22 released from the tape unwinding assembly 4 to be laminated onto the panel 21. An installation groove 311 is provided at the end of the pressure head body 31 in the pressure head assembly 3 to accommodate the elastic buffer layer 32. The mosaic groove body used in the installation groove 311 can allow the elastic buffer layer 32 to be stably embedded in the installation groove 311, and an unwinding device 34 and a winding device 35 for winding and unwinding the elastic buffer layer 32 are provided on the pressure head assembly 3. The elastic buffer layer 32 can be automatically replaced after long-term use.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An ACF laminating and pressing device, characterized in that: It comprises a frame (1) and a pressing platform (2) mounted on the frame (1), a pressing head assembly (3) is mounted above the pressing platform (2), a material strip retracting and unreeling assembly (4) is mounted on one side of the pressing head assembly (3), and a cutting mechanism (5) is also mounted on one side of the material strip retracting and unreeling assembly (4); A pressing platform (2), the pressing platform (2) is used to place a panel (21) to be pressed, wherein an adsorption mechanism (6) for adsorbing the panel (21) is installed on the pressing platform (2), and an ACF (22) is pressed on the panel (21) via a pressing head assembly (3); A pressure head assembly (3), the pressure head assembly (3) comprising a pressure head body (31) and an elastic buffer layer (32), wherein the elastic buffer layer (32) is located between the pressure head body (31) and the panel (21), the top of the pressure head body (31) is connected to a downward pressure cylinder (33), and a pressure head end portion at the bottom of the pressure head body (31) is provided with a mounting groove (311) for mounting the elastic buffer layer (32), wherein the mounting groove (311) adopts an inlaid groove body, and an unwinding device (34) and a winding device (35) for winding and unwinding the elastic buffer layer (32) are installed on the pressure head assembly (3); A heating mechanism (36), wherein the heating mechanism (36) is mounted on the pressure head assembly (3), wherein the heating mechanism (36) adopts a non-contact heating method, and the heating ports (37) of the heating mechanism (36) are located on both sides of the pressure head assembly (3); The material tape unwinding and rewinding assembly (4) comprises an unwinding portion (41) and a rewinding portion (42) respectively located on the side of the pressure head assembly (3), wherein the unwinding portion (41) unwinds the ACF (22) attached to the panel (21), and the rewinding portion (42) rewinds the carrier tape (43) for placing the ACF (22); the cutting mechanism (5) is installed at one end of the pressure head assembly (3) close to the material tape unwinding and rewinding assembly (4); arc-shaped transition portions are provided on both sides of the mounting groove (311) at the bottom of the pressure head body (31). (312), and a locking rod (313) for locking the elastic buffer layer (32) is installed on the bottom surface of the installation groove (311), and the locking rod (313) is driven by a locking cylinder (314) in the pressure head body (31) to lock with the locking hole (323) on the back side of the elastic buffer layer (32); a limiting groove (321) adapted to the ACF (22) is provided on the contact surface between the elastic buffer layer (32) and the ACF (22), and the inner side surface of the limiting groove (321) is coated with a low surface energy coating (322).

2. The ACF attaching and laminating device according to claim 1, characterized in that: The non-contact heating method is far-infrared heating, wherein the heating device comprises heating covers (361) arranged on both sides of the pressing head assembly (3), an infrared ray emitter (362) is provided in the heating cover (361), and the heating port (37) of the heating cover (361) faces the bottom of the pressing head assembly (3).

3. The ACF attaching and laminating device according to claim 1, wherein: The adsorption mechanism (6) comprises a plurality of adsorption holes (61) located on the surface of the pressing platform (2) and a vacuum pump (62) inside the pressing platform (2) connected to the adsorption holes (61) via a pipeline.

4. The ACF attaching and laminating device according to claim 3, wherein: The surface of the pressing platform (2) is also provided with a cleaning mechanism (23), comprising adsorption grooves (231) distributed annularly around the pressing platform (2) and a purge mechanism (232) slidably mounted on the pressing platform (2), wherein the opening of the adsorption grooves (231) faces the center of the pressing platform (2), and a dust collecting box (2311) with a negative pressure pump (2312) is connected to the bottom of the adsorption grooves (231), and the purge mechanism (232) comprises a purge rod (231) having the same length as the pressing platform (2). 321), air outlets are evenly distributed on the bottom of the purge rod (2321), and the bottom of the purge rod (2321) is connected by a support rod (2322) and a lifting rod (2323), wherein the lifting rod (2323) can drive the purge rod (2321) to rise from the receiving groove (2325) on the pressing platform (2) in which the purge mechanism (232) is placed, and a slider (2324) for fixing the support rod (2322) and the lifting rod (2323) is slidably installed in the receiving groove (2325).

5. The ACF attaching and laminating device according to claim 4, characterized in that: The mounting groove (311) provided at the bottom of the pressure head assembly (3) comprises a first groove body (3111) and a plurality of second groove bodies (3112) with different depths located on the bottom surface of the first groove body (3111), wherein the second groove body (3112) is located at the center of the pressure head assembly (3) and has a depth greater than that of the two sides.

6. The ACF attaching and laminating device according to claim 1, characterized in that: The low surface energy coating (322) is a polytetrafluoroethylene coating.

7. The ACF attaching and laminating device according to claim 1, characterized in that: The elastic buffer layer (32) is embedded in the mounting groove (311), and the buffer layer wound by the unwinding device (34) is provided with a shaping strip (341) on both sides thereof, which cooperates with a second groove body (3112) on one side of the elastic buffer layer (32) and a limiting groove (321) on the other side thereof, and a reel (342) for winding the shaping strip (341) is provided on both sides of the unwinding device (34).

8. The ACF attaching and laminating device according to claim 1, characterized in that: The unwinding section (41) and the rewinding section (42) in the material tape unwinding assembly (4) are both located on one side of the pressure head body (31), wherein the cutting mechanism (5) is located between the unwinding section (41) and the rewinding section (42), wherein the unwinding section (41) comprises an unwinding roller (411) and a guide roller (412), wherein the unwinding roller (411) unwinds the ACF (22) with the carrier tape (43), the guide roller (412) is wound with the carrier tape (43), and the guide roller (412) guides the carrier tape (43) to the rewinding section (42), and the guide roller (412) is driven by the cylinder (413) to move along the length of the pressure head body (31). The pneumatic cylinder (413) moves in a certain direction, and a displacement sensor is installed at one end of the cylinder (413) facing the guide roller (412), wherein the displacement sensor (414) is used to sense the distance that the cylinder (413) drives the guide roller (412) to move. The cutting mechanism (5) is installed at one end of the pressure head body (31) close to the material strip retracting and unreeling assembly (4), and includes a cutting bracket (51) and a pneumatic cutting knife (52) installed on the cutting bracket (51). The pneumatic cutting knife (52) includes a cutting cylinder (521) and a knife body (522) at the output end of the cylinder (413), wherein the knife body (522) is close to one side of the ACF (22).

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