Automatic bending device for FPC (Flexible Printed Circuit) board

Abstract

The invention relates to the technical field of FPC bending devices, in particular to an automatic FPC board bending device, a board splicing platform comprises an objective table and a moving block, a sliding block of the board splicing platform is in sliding connection with a sliding rail on an FPC production line, an FPC board is placed on the objective table and limited through a positioning mechanism, the objective table is provided with a bending mechanism, and the moving block is arranged on the moving block. A first adsorption mechanism is mounted on one side, close to the bending mechanism, of the objective table; the bending mechanism comprises a bearing plate and a mounting frame, the bearing plate is used for placing the FPC board, a second adsorption mechanism is arranged on the side, close to the board splicing platform, of the bearing plate, a servo motor is mounted on the mounting frame, bending adjusting mechanisms are mounted on the two faces of the bearing plate correspondingly, and the bending adjusting mechanisms act on the FPC board located between the board splicing platform and the bearing plate. Comprising supporting rods and mounting bases. The bending requirements of different positions on different FPC boards can be met, the different positions on the FPC boards can be synchronously bent at the same time, the equipment compatibility is high, meanwhile, the manual operation cost is reduced through the automatic design, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of FPC bending devices, and in particular to an automatic bending device for an FPC board. Background Art

[0002] FPC is a flexible printed circuit board, which is highly reliable and has excellent flexibility. It has the characteristics of high wiring density, light weight, thin thickness and good bending properties. In the LCD and OLED panel industry, the FPC needs to be reverse bent and fixed during the assembly stage. The existing reverse bending methods are mostly manual jig operation methods or semi-automatic and manual methods. The above methods are complicated, have low product compatibility and high production costs.

[0003] Chinese patent CN117921988B discloses an FPC bending and forming device, including a fixing mechanism, a pressing mechanism and a bearing mechanism; the fixing mechanism is used to be placed on a supporting surface to support the pressing mechanism and the bearing mechanism; the bearing mechanism includes a locking member, a supporting member, a bearing plate and two bearing platforms, the two bearing platforms are mirror-set at the midpoint position of the bearing plate, the bearing platform is used to support the FPC board, and the bearing plate is detachably connected to the fixing mechanism; the supporting member includes a base and a forming block, the base is detachably set at the midpoint position, the surface of the base away from the bearing plate is slidably connected to the forming block through a groove, and a reset spring is arranged between one end of the forming block located in the groove and the bottom of the groove opened on the base. The FPC bending and forming device can reduce the formation of wrinkles, deformation or unevenness of the FPC board during bending and forming, and improve the quality of the product.

[0004] The FPC bending and forming device in the existing patent can reduce the problem of wrinkles, deformation or unevenness of the FPC board during bending and forming. However, when the FPC is folded from a flat surface, both sides of the FPC generally need to be provided with pressing and forming structures respectively, and a single pressing and forming can only be performed on a specified position on the FPC. When multiple bending and forming are required at different positions on the FPC, multiple processes are required, and the efficiency of FPC bending is low. Summary of the invention

[0005] In order to overcome the problems existing in the prior art, the present application provides an FPC board automatic bending device.

[0006] The present application provides an FPC board automatic bending device adopts the following technical solution:

[0007] An automatic bending device for an FPC board comprises a panelizing platform, wherein the panelizing platform comprises a loading platform at the top and a moving block at the bottom, a sliding block at the bottom of the panelizing platform is slidably connected to a slide rail on an FPC production line, an FPC board is placed on the loading platform and is limited by a positioning mechanism, a bending mechanism for automatically bending the FPC board is installed on one side of the loading platform, and a first adsorption mechanism for fixing the FPC board is installed on a side of the loading platform close to the bending mechanism; a bending mechanism, the bending mechanism comprises a bearing plate and mounting frames at both ends, the bearing plate is used to place the FPC board, a second adsorption mechanism is provided on a side of the bearing plate close to the panelizing platform, a servo motor for driving the bearing plate to rotate is installed on the mounting frame, wherein bending adjustment mechanisms are installed on both sides of the bearing plate, the bending adjustment mechanism acts on the FPC board located between the panelizing platform and the bearing plate, comprises support rods at both sides and a mounting seat installed on the support rods, the support rods comprise two sets of telescopic rods, and the two ends of the telescopic rods are respectively rotatably connected to the bearing plate and the mounting seat.

[0008] By adopting the above technical solution, the panel platform is used to place the FPC board to be processed during the production process, wherein the loading platform is used to place the FPC board and fix the position of the FPC board through the positioning mechanism thereon, and the moving block at the bottom of the loading platform can move on the production line track, and can directly enter the bending device after the front process, and move to the back process after the bending is completed, which is convenient and efficient to operate. The first adsorption mechanism installed on the side of the loading platform close to the bending mechanism can adsorb and fix the FPC board, and at the same time, the second adsorption mechanism on the carrier plate in the bending mechanism adsorbs and fixes the FPC board. By starting the servo motor on the mounting frame, the FPC board fixed on the carrier plate can rotate on the mounting frames on both sides, thereby bending the FPC board, and the bending adjustment mechanisms arranged on both sides of the carrier plate adjust the position of the bending portion support head installed thereon, and the position of the mounting seat is adjusted by adjusting the telescopic length of the two sets of telescopic rods on the support rod, thereby adjusting the position of the bending portion support head fixed on the mounting seat, acting on the part of the FPC board that needs to be bent, thereby realizing synchronous bending of multiple positions of the FPC board by a single bending device, thereby greatly improving the bending efficiency of the FPC board.

[0009] Preferably, the positioning mechanism includes a fixed baffle and adjustment plates at both ends thereof, wherein the bottom of the fixed baffle is slidably connected to the worktable, the adjustment plate is slidably installed along the length direction of the fixed baffle, the adjustment plate slides on the back side of the fixed baffle through an adjustment rod distributed vertically therewith, and a first motor driving the adjustment rod is installed on the fixed baffle, and the first motor is transmitted through the gear at its output end meshing with the rack on the adjustment rod.

[0010] Preferably, a U-shaped adjustment bracket is installed on the side of the fixed baffle away from the first adsorption mechanism, wherein the end of the U-shaped adjustment bracket away from the fixed baffle is slidably installed in the groove body of the panel platform, and slides in the groove body through a slider at the end of the U-shaped adjustment bracket, and the slider is driven by a screw rod located at the output end of the second motor at the end of the panel platform, and a wire sleeve adapted to the screw rod is provided in the slider.

[0011] Preferably, a pressure rod for clamping the FPC board on the panelization platform is also installed on the fixed baffle plate, and the pressure rod is rotatably installed on the top of the fixed baffle plate, wherein the pressure rod has its rotating shaft driven by a reduction motor, and a buffer rubber layer is attached to the surface of the pressure rod in contact with the FPC board.

[0012] By adopting the above technical solution, the fixed baffle in the stage is used to press against the FPC board placed on the stage, the second motor drives the screw to rotate and cooperate with the screw sleeve on the slider, driving the slider at the bottom of the U-shaped adjustment bracket to slide, and the fixed baffle slides on the stage through the U-shaped adjustment bracket on the back to meet the positioning requirements of the ends of FPC boards of different sizes. The first motor on the fixed baffle drives the gear at its output end to rotate, and the gear meshes with the rack on the adjustment rod to drive the movement of the adjustment plates at both ends of the fixed baffle to meet the positioning requirements of both sides of FPC boards of different sizes. In addition, the pressure rod installed on the top of the fixed baffle is driven to rotate by the reduction motor, and a buffer rubber layer is set on the contact surface between the pressure rod and the FPC board to provide buffering when the pressure rod clamps the top surface of the FPC board to avoid damage to the FPC board when the top of the FPC board is fixed.

[0013] Preferably, the first adsorption mechanism and the second adsorption mechanism have the same structure and are slidably installed in the edge grooves of the panel platform and the load-bearing plate respectively, and include an adsorption bar and a sliding bar located inside the adsorption bar, wherein the surface of the adsorption bar is flush with the surface of the platform on which it is installed, and the outer side of the adsorption bar adopts an arc-shaped transition, the sliding bar is slidably installed in the edge groove, and a third motor for driving the sliding bar to move is installed at the end of the sliding bar, and the output shaft of the third motor is transmitted through a screw rod and a thread sleeve in the sliding bar.

[0014] By adopting the above technical solution, the first adsorption mechanism adsorbs and fixes the FPC board from the side of the support platform close to the bending mechanism, and the second adsorption mechanism adsorbs and fixes the FPC board from the side of the bending mechanism close to the support platform. When the bending mechanism bends the FPC board, the first adsorption mechanism and the second adsorption mechanism can fix its two ends to ensure the bending accuracy, and both of them are driven by the screw rod at the output end of the third motor and the thread sleeve in the sliding bar, thereby driving the sliding bar and the adsorption bar located outside the sliding bar to move in the edge slot to meet the bending requirements of different positions on different FPC boards. The surface of the adsorption bar is flush with the surface of the platform on which it is installed, so that the FPC board can be installed flatly, and the arc transition provided on its outer side can prevent the FPC board from breaking during the bending process, effectively reducing the defective rate.

[0015] Preferably, a bending portion support head is detachably mounted on the mounting seat in the bending adjustment mechanism, wherein the bending portion support head includes a forming rod and arc-shaped adjustment rods on both sides of the forming rod, the front side of the arc-shaped adjustment rod is provided with an inwardly recessed arc-shaped transition surface, the back side of the arc-shaped adjustment rod is provided with a mounting groove, and the mounting block on the back side of the forming rod cooperates with the mounting groove.

[0016] Preferably, the arc-shaped adjustment rods are connected by a connecting frame, and the connecting frame and the arc-shaped adjustment rod are integrally formed, the bending portion support head is detachably connected to the mounting seat through the connecting frame, and the surfaces of the arc-shaped adjustment rod and the forming rod are provided with vacuum adsorption holes.

[0017] Preferably, a pressure sensor is installed at the outer end of the forming rod, and the vacuum adsorption holes on the forming rod and the arc-shaped adjustment rod are provided with electric control valves. A controller is installed on the back of the forming rod, and the controller is connected to the pressure sensor and the electric control valve.

[0018] By adopting the above technical solution, the bending portion support head detachably mounted on the mounting seat in the bending adjustment mechanism can be selected according to the required bending shape of the FPC board, wherein the arc-shaped adjustment rods on both sides are connected by a connecting frame, and the connecting frame is used to connect the bending portion support head with the mounting seat. The mounting groove provided on the arc-shaped adjustment rod is used to engage with the mounting block on the forming rod, and the installation method adopts the method of placing the forming rod with the mounting block and the arc-shaped adjustment rod in a staggered manner, first putting the mounting block into the inlet of the mounting groove, and then pushing the forming rod along the length direction of the forming rod, and engaging the mounting block on the forming rod into the limiting part of the mounting groove, thereby realizing the clamping and fixing of the forming rod and the arc-shaped adjustment rod. The pressure sensor installed at the outer end of the forming rod can transmit a signal to the controller when the forming rod acts on the FPC board, and the controller controls the electric control valves on the adsorption holes from the outer end of the forming rod to the end of the arc-shaped adjustment rod to open in sequence, and the opening sequence can conform to the order in which the bending portion support head contacts the FPC board, so that the stable bending of the FPC board can be achieved through the unilateral pressure of the bending portion support head and the adsorption of the adsorption hole. The forming rod in the bending support head can be replaced according to the required bending shape of the FPC board. The arc adjustment rods on both sides of the forming rod adopt an arc transition surface with an inward concave surface, which avoids the occurrence of fracture between the plane of the FPC board and the bending surface, and effectively reduces the defective rate during the bending process.

[0019] Preferably, the supporting plate includes a main frame and auxiliary frames on both sides, wherein the auxiliary frames are connected to the servo motor on the outside, and the main frame is slidably connected between the auxiliary frames through an adjusting buffer mechanism, and the adjusting buffer mechanism includes strip-shaped protrusions on both sides of the main frame, and a fourth motor is installed on the auxiliary frame to drive the strip-shaped protrusions to move in a slide groove on the auxiliary frame, wherein the screw rod on the output shaft of the fourth motor cooperates with the wire sleeve in the strip-shaped protrusion for transmission, and the strip-shaped protrusion includes a main shell slidably connected to the slide groove and a sliding block integrally formed with the main frame, wherein the length of the sliding block is less than the length of the inner cavity of the main shell, and wherein the end of the sliding block is connected to the end of the inner cavity of the main shell through an elastic element.

[0020] Preferably, one end of the carrier plate close to the servo motor is rotatably connected to the mounting frame, and the other end of the carrier plate is clamped in the bearing seat on the top of the mounting plate, wherein the bearing seat is slidably installed on the top of the mounting plate and is fixed to the mounting plate by fixing bolts around it, and the end of the carrier plate is provided with a connecting shaft that can be clamped with the bearing seat.

[0021] By adopting the above technical scheme, the main plate in the load-bearing plate is connected with the auxiliary frames on both sides through an adjustable buffer mechanism, wherein the private service motor drives the rotation of the main plate by driving the auxiliary frame to rotate. When the bending mechanism bends the FPC board, the fourth motor can cooperate with the wire sleeve in the strip-shaped protrusion through the screw rod at its output end, thereby driving the strip-shaped protrusion to move in the slide groove on the auxiliary frame to meet the bending requirements of the two ends of the FPC board that need to be bent, which are respectively fixed by the first adsorption mechanism and the second adsorption mechanism. After the adjustment is completed, when the bending mechanism is in the process of bending, the sliding blocks arranged on both sides of the main plate are connected with the inner cavity of the main shell in the strip-shaped protrusion through the elastic elements on both sides thereof, further providing a buffer movement process for the FPC board in the bending process, reducing the situation where the FPC board breaks and produces defective products during the bending process, and improving the bending quality.

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

[0023] 1. This application meets the fixing requirements of products of different sizes by setting a positioning mechanism on the stage, and is equipped with a pressure rod to clamp and fix the FPC board, ensuring the bending accuracy, and the equipment is highly compatible with products;

[0024] 2. The first adsorption mechanism and the second adsorption mechanism in the present application cooperate with the wire sleeve in the sliding bar through the screw rod at the output end of the third motor to drive the sliding bar and the adsorption bar located outside the sliding bar to move in the edge slide groove to meet the bending requirements of different positions on different FPC boards;

[0025] 3. The forming rod in the bending portion support head in the present application can be replaced according to the required bending shape of the FPC board. The arc-shaped adjustment rods on both sides of the forming rod adopt an arc-shaped transition surface with an inwardly concave surface, which avoids the occurrence of fracture between the plane of the FPC board and the bending surface, effectively reduces the defective rate during the bending process, reduces labor costs, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an FPC board automatic bending device;

[0027] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 It is a structural schematic diagram of an adjustment buffer mechanism in an automatic bending device for an FPC board;

[0029] Figure 4 It is a schematic diagram of the overall structure of the positioning mechanism in the automatic bending device of the FPC board;

[0030] Figure 5The present invention is a structural schematic diagram of a bending portion support head in an automatic bending device for an FPC board.

[0031] Explanation of the reference numerals: 1. panel platform; 11. loading platform; 111. first adsorption mechanism; 12. moving block; 13. slide rail; 14. second motor; 3. bending mechanism; 31. load-bearing plate; 311. second adsorption mechanism; 312. main frame; 313. auxiliary frame; 314. connecting shaft; 32. mounting frame; 321. servo motor; 322. bearing seat; 4. bending adjustment mechanism; 41. support rod; 411. telescopic rod; 42. mounting seat; 5. positioning mechanism; 51. fixed baffle; 511. U-shaped adjustment bracket; 512. slider; 513. pressure rod; 5131. deceleration Motor; 5132, buffer rubber layer; 52, adjustment plate; 521, adjustment rod; 5211, rack; 522, first motor; 5221, gear; 6, adsorption strip; 7, sliding bar; 71, third motor; 8, bending portion support head; 81, forming rod; 811, mounting block; 812, pressure sensor; 82, arc-shaped adjustment rod; 821, mounting groove; 83, connecting frame; 84, vacuum adsorption hole; 85, controller; 9, adjustment buffer mechanism; 91, strip-shaped protrusion; 911, main body shell; 912, sliding block; 913, elastic element; 92, slide groove; 93, fourth motor. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses an automatic bending device for an FPC board.

[0034] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, an automatic bending device for an FPC board, comprising a paneling platform 1, the paneling platform 1 comprising a loading platform 11 at the top and a moving block 12 at the bottom, a slider 512 at the bottom of the paneling platform 1 being slidably connected to a slide rail 13 on an FPC production line, an FPC board being placed on the loading platform 11 and being limited by a positioning mechanism 5, a bending mechanism 3 for automatically bending the FPC board being installed on one side of the loading platform 11, and a first adsorption mechanism 111 for fixing the FPC board being installed on the side of the loading platform 11 close to the bending mechanism 3; a bending mechanism 3, the bending mechanism 3 comprising a bearing plate 31 and mounting means at both ends The mounting frame 32, the carrier plate 31 is used to place the FPC board, and a second adsorption mechanism 311 is provided on the side of the carrier plate 31 close to the panelization platform 1. A servo motor 321 for driving the carrier plate 31 to rotate is installed on the mounting frame 32, wherein the carrier plate 31 is installed with a bending adjustment mechanism 4 on both sides, and the bending adjustment mechanism 4 acts on the FPC board between the panelization platform 1 and the carrier plate 31, including support rods 41 on both sides and a mounting seat 42 installed on the support rod 41, and the support rod 41 includes two sets of telescopic rods 411, and the two ends of the telescopic rod 411 are rotatably connected to the carrier plate 31 and the mounting seat 42 respectively. The panelization platform 1 is used to place the FPC board to be processed during the production process, wherein the loading platform 11 is used to place the FPC board and fix the position of the FPC board through the positioning mechanism 5 thereon, and the moving block 12 at the bottom of the loading platform 11 can move on the production line track, and can directly enter the bending device after the previous process, and move to the subsequent process after the bending is completed, which is convenient and efficient to operate. The first adsorption mechanism 111 installed on the side of the stage 11 close to the bending mechanism 3 can adsorb and fix the FPC board, and at the same time, the second adsorption mechanism 311 on the support plate 31 in the bending mechanism 3 adsorbs and fixes the FPC board. The servo motor 321 on the mounting frame 32 is started, and the FPC board fixed on the support plate 31 can rotate on the mounting frames 32 on both sides, so as to bend the FPC board, and the bending adjustment mechanism 4 arranged on both sides of the support plate 31 adjusts the position of the bending portion support head 8 installed thereon, and adjusts the position of the mounting seat 42 by adjusting the telescopic length of the two sets of telescopic rods 411 on the support rod 41, thereby adjusting the position of the bending portion support head 8 fixed on the mounting seat 42, acting on the part of the FPC board that needs to be bent, and realizing the synchronous bending of multiple positions of the FPC board by a single bending device, which greatly improves the bending efficiency of the FPC board.

[0035] Reference Figure 1 and Figure 4The positioning mechanism 5 includes a fixed baffle 51 and adjustment plates 52 at both ends thereof, wherein the bottom of the fixed baffle 51 is slidably connected to the stage 11, the adjustment plate 52 is slidably installed along the length direction of the fixed baffle 51, and the adjustment plate 52 slides on the back of the fixed baffle 51 through an adjustment rod 521 vertically distributed therewith, and a first motor 522 driving the adjustment rod 521 is installed on the fixed baffle 51, and the first motor 522 is meshed and driven with a rack 5211 on the adjustment rod 521 through a gear 5221 at its output end. A U-shaped adjustment bracket 511 is installed on the side of the fixed baffle 51 away from the first adsorption mechanism 111, wherein the end of the U-shaped adjustment bracket 511 away from the fixed baffle 51 is slidably installed in the groove body of the panel assembly platform 1, and slides in the groove body through a slider 512 at the end of the U-shaped adjustment bracket 511, and the slider 512 is driven by a screw rod at the output end of the second motor 14 at the end of the panel assembly platform 1, and a thread sleeve adapted to the screw rod is provided in the slider 512. A pressure rod 513 for clamping the FPC board on the panel platform 1 is also installed on the fixed baffle 51. The pressure rod 513 is rotatably installed on the top of the fixed baffle 51, wherein the pressure rod 513 drives its rotating shaft through a reduction motor 5131, and a buffer rubber layer 5132 is attached to the surface of the pressure rod 513 that contacts the FPC board. The fixed baffle 51 in the stage 11 is used to press against the FPC board placed on the stage 11, and the second motor 14 drives the screw rod to rotate and cooperate with the screw sleeve on the slider 512, driving the slider 512 at the bottom of the U-shaped adjustment bracket 511 to slide, and the fixed baffle 51 slides on the stage 11 through the U-shaped adjustment bracket 511 on the back to meet the positioning requirements of the ends of FPC boards of different sizes. The first motor 522 on the fixed baffle 51 drives the gear 5221 at its output end to rotate, and the gear 5221 meshes with the rack 5211 on the adjusting rod 521 to drive the adjustment plates 52 at both ends of the fixed baffle 51 to move, so as to meet the positioning requirements of the two sides of the FPC boards of different sizes. In addition, the pressure rod 513 installed on the top of the fixed baffle 51 is driven to rotate by the reduction motor 5131, and a buffer rubber layer 5132 is provided on the contact surface between the pressure rod 513 and the FPC board to provide buffering when the pressure rod 513 clamps the top surface of the FPC board, so as to avoid damage to the FPC board when the top of the FPC board is fixed.

[0036] Reference Figure 1 , Figure 2 and Figure 3The first adsorption mechanism 111 and the second adsorption mechanism 311 have the same structure and are slidably installed in the edge grooves 92 of the panel platform 1 and the load-bearing plate 31 respectively, including an adsorption bar 6 and a sliding bar 7 located inside the adsorption bar 6, wherein the surface of the adsorption bar 6 is flush with the surface of the platform on which it is installed, and the outer side of the adsorption bar 6 adopts an arc-shaped transition, the sliding bar 7 is slidably installed in the edge groove 92, and a third motor 71 is installed at the end of the sliding bar 7 to drive it to move, and the output shaft of the third motor 71 is transmitted through a screw rod and a thread sleeve in the sliding bar 7. The first adsorption mechanism 111 adsorbs and fixes the FPC board from the side of the support platform close to the bending mechanism 3, and the second adsorption mechanism 311 adsorbs and fixes the FPC board from the side of the bending mechanism 3 close to the support platform. When the bending mechanism 3 bends the FPC board, the first adsorption mechanism 111 and the second adsorption mechanism 311 can fix its two ends to ensure the bending accuracy, wherein both are driven by the screw rod at the output end of the third motor 71 and the thread sleeve in the sliding bar 7, thereby driving the sliding bar 7 and the adsorption bar 6 located outside the sliding bar 7 to move in the edge slide 92 to meet the bending requirements of different positions on different FPC boards. The surface of the adsorption bar 6 is flush with the surface of the platform on which it is installed, so that the FPC board can be installed flatly, and the arc transition provided on its outer side can prevent the FPC board from breaking during the bending process, effectively reducing the defective rate.

[0037] Reference Figure 1 , Figure 2 and Figure 5The bending portion support head 8 is detachably mounted on the mounting seat 42 in the bending adjustment mechanism 4, wherein the bending portion support head 8 comprises a forming rod 81 and arc-shaped adjustment rods 82 on both sides of the forming rod 81, the front of the arc-shaped adjustment rod 82 is provided with an arc-shaped transition surface that is recessed inward, and the back thereof is provided with a mounting groove 821, and the mounting block 811 provided on the back of the forming rod 81 cooperates with the mounting groove 821. The arc-shaped adjustment rods 82 are connected by a connecting frame 83, and the connecting frame 83 and the arc-shaped adjustment rod 82 are integrally formed, and the bending portion support head 8 is detachably connected to the mounting seat 42 through the connecting frame 83, and the surfaces of the arc-shaped adjustment rod 82 and the forming rod 81 are provided with vacuum adsorption holes 84. A pressure sensor 812 is installed at the outer end of the forming rod 81, and the vacuum adsorption holes 84 on the forming rod 81 and the arc-shaped adjustment rod 82 are provided with electric control valves, and a controller 85 is installed on the back of the forming rod 81, and the controller 85 is connected to the pressure sensor 812 and the electric control valve. The bending portion support head 8 detachably mounted on the mounting seat 42 in the bending adjustment mechanism 4 can be selected according to the required bending shape of the FPC board, wherein the arc-shaped adjustment rods 82 on both sides are connected by a connecting frame 83, and the connecting frame 83 is used to connect the bending portion support head 8 with the mounting seat 42. The mounting groove 821 provided on the arc-shaped adjustment rod 82 is used to be clamped with the mounting block 811 on the forming rod 81. The installation method adopts the method of placing the forming rod 81 with the mounting block 811 and the arc-shaped adjustment rod 82 in a staggered manner, firstly putting the mounting block 811 into the introduction port of the mounting groove 821, and then pushing the forming rod 81 along the length direction of the forming rod 81, and clamping the mounting block 811 on the forming rod 81 into the limiting part of the mounting groove 821, so as to realize the clamping and fixing of the forming rod 81 and the arc-shaped adjustment rod 82. The pressure sensor 812 installed at the outer end of the forming rod 81 can transmit a signal to the controller 85 when the forming rod 81 acts on the FPC board. The controller 85 controls the electric control valves on the adsorption holes from the outer end of the forming rod 81 to the end of the arc adjustment rod 82 to open in sequence. The opening sequence can match the sequence of contact between the bending portion support head 8 and the FPC board, so that the stable bending of the FPC board can be achieved through the unilateral pressure of the bending portion support head 8 and the adsorption of the adsorption holes. The forming rod 81 in the bending portion support head 8 can be replaced according to the shape of the FPC board required to be bent. The arc adjustment rods 82 on both sides of the forming rod 81 adopt an arc transition surface with an inwardly concave surface, which avoids the situation where the plane of the FPC board and the bending surface are broken, and effectively reduces the defective rate during the bending process.

[0038] Reference Figure 1 , Figure 2 and Figure 3The supporting plate 31 includes a main frame 312 and auxiliary frames 313 on both sides, wherein the auxiliary frames 313 are connected to the servo motor 321 on the outside, and the main frame 312 is slidably connected between the auxiliary frames 313 through an adjusting buffer mechanism 9, and the adjusting buffer mechanism 9 includes strip protrusions 91 on both sides of the main frame 312, and a fourth motor 93 is installed on the auxiliary frame 313 to drive the strip protrusions 91 to move in the slide groove 92 on the auxiliary frame 313, wherein the screw rod on the output shaft of the fourth motor 93 cooperates with the wire sleeve in the strip protrusion 91 for transmission, and the strip protrusion 91 includes a main shell 911 slidably connected to the slide groove 92 and a sliding block 912 integrally formed with the main frame 312, the length of the sliding block 912 is less than the length of the inner cavity of the main shell 911, wherein the end of the sliding block 912 is connected to the end of the inner cavity of the main shell 911 through an elastic element 913. One end of the supporting plate 31 close to the servo motor 321 is rotatably connected to the mounting frame 32, and the other end of the supporting plate 31 is clamped in the bearing seat 322 at the top of the mounting plate, wherein the bearing seat 322 is slidably installed on the top of the mounting plate and is fixed to the mounting plate by fixing bolts around it, and the end of the supporting plate 31 is provided with a connecting shaft 314 that can be clamped with the bearing seat 322. The main plate in the carrying plate 31 is connected to the auxiliary frames 313 on both sides through an adjustable buffer mechanism 9, wherein the private service motor drives the rotation of the main plate by driving the auxiliary frame 313 to rotate. When the bending mechanism 3 bends the FPC board, the fourth motor 93 can cooperate with the wire sleeve in the strip protrusion 91 through the screw rod at its output end, thereby driving the strip protrusion 91 to move in the slide groove 92 on the auxiliary frame 313 to meet the bending requirements of the two ends of the FPC board that need to be bent, which are respectively fixed by the first adsorption mechanism 111 and the second adsorption mechanism 311. After the adjustment is completed, when the bending mechanism 3 is in the process of bending, the sliding blocks 912 arranged on both sides of the main plate are connected to the inner cavity of the main shell 911 in the strip protrusion 91 through the elastic elements 913 on both sides thereof, further providing a buffer movement process for the FPC board in the bending process, reducing the situation of the FPC board breaking and producing defective products during the bending process, and improving the bending quality.

[0039] Working principle: When working, the FPC board with a bend is first fixed on the stage 11 as a whole through the positioning mechanism 5, and by adjusting the positions of the first adsorption mechanism 111 and the second adsorption mechanism 311, the two ends of the bent part of the FPC board are fixed through the adsorption effect of the two, and then the servo motor 321 in the bending mechanism 3 is driven to drive the carrier plate 31 to rotate to bend the FPC board. The bending adjustment mechanism 4 arranged on the carrier plate 31 is adjusted according to the required bending position on the FPC board, and then the bending part support head 8 located thereon is driven to apply a bending force to the FPC board, so that when the bending mechanism 3 bends the FPC board, the bending part support head 8 can also perform bending operations on the FPC board at the same time.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic bending device for an FPC board, characterized in that: include A panel assembly platform (1), the panel assembly platform (1) comprising a loading platform (11) at the top and a moving block (12) at the bottom, a slider (512) at the bottom of the panel assembly platform (1) being slidably connected to a slide rail (13) on an FPC production line, an FPC board being placed on the loading platform (11) and being limited by a positioning mechanism (5), a bending mechanism (3) for automatically bending the FPC board being installed on one side of the loading platform (11), and a first adsorption mechanism (111) for fixing the FPC board being installed on a side of the loading platform (11) close to the bending mechanism (3); A bending mechanism (3), wherein the bending mechanism (3) comprises a bearing plate (31) and mounting frames (32) at both ends, wherein the bearing plate (31) is used to place an FPC board, a second adsorption mechanism (311) is provided on a side of the bearing plate (31) close to the panel assembly platform (1), and a servo motor (321) is installed on the mounting frame (32) for driving the bearing plate (31) to rotate, wherein bending adjustment mechanisms (4) are installed on both sides of the bearing plate (31), wherein the bending adjustment mechanism (4) acts on the FPC board located between the panel assembly platform (1) and the bearing plate (31), and comprises support rods (41) at both sides and a mounting seat (42) installed on the support rods (41), wherein the support rods (41) comprise two sets of telescopic rods (411), and the two ends of the telescopic rods (411) are respectively rotatably connected to the bearing plate (31) and the mounting seat (42).

2. The FPC board automatic bending device according to claim 1, characterized in that: The positioning mechanism (5) comprises a fixed baffle (51) and adjustment plates (52) at both ends thereof, wherein the bottom of the fixed baffle (51) is slidably connected to the loading platform (11), and the adjustment plate (52) is slidably installed along the length direction of the fixed baffle (51), and the adjustment plate (52) slides on the back side of the fixed baffle (51) through an adjustment rod (521) vertically distributed therewith, and a first motor (522) for driving the adjustment rod (521) is installed on the fixed baffle (51), and the first motor (522) is meshed with a rack (5211) on the adjustment rod (521) for transmission through a gear (5221) at its output end.

3. The FPC board automatic bending device according to claim 2, characterized in that: A U-shaped adjustment bracket (511) is installed on the side of the fixed baffle (51) away from the first adsorption mechanism (111), wherein one end of the U-shaped adjustment bracket (511) away from the fixed baffle (51) is slidably installed in the groove body of the panel assembly platform (1), and slides in the groove body through a slider (512) at the end of the U-shaped adjustment bracket (511), and the slider (512) is driven by a screw rod at the output end of a second motor (14) located at the end of the panel assembly platform (1), and a thread sleeve adapted to the screw rod is provided in the slider (512).

4. The FPC board automatic bending device according to claim 2, characterized in that: The fixed baffle (51) is also provided with a pressure rod (513) for clamping the FPC board on the panelization platform (1), and the pressure rod (513) is rotatably installed on the top of the fixed baffle (51), wherein the pressure rod (513) drives its rotating shaft through a reduction motor (5131), and a buffer rubber layer (5132) is attached to the surface of the pressure rod (513) in contact with the FPC board.

5. The FPC board automatic bending device according to claim 1, characterized in that: The first adsorption mechanism (111) and the second adsorption mechanism (311) have the same structure and are respectively slidably installed in the edge grooves (92) of the panel platform (1) and the load-bearing plate (31), and include an adsorption bar (6) and a sliding bar (7) located inside the adsorption bar (6), wherein the surface of the adsorption bar (6) is flush with the surface of the platform on which it is installed, and the outer side of the adsorption bar (6) adopts an arc transition, the sliding bar (7) is slidably installed in the edge groove (92), and a third motor (71) is installed at the end of the sliding bar (7) to drive it to move, and the output shaft of the third motor (71) cooperates with the threaded sleeve in the sliding bar (7) through a screw rod for transmission.

6. The FPC board automatic bending device according to claim 1, characterized in that: A bending portion support head (8) is detachably mounted on the mounting seat (42) in the bending adjustment mechanism (4), wherein the bending portion support head (8) comprises a forming rod (81) and arc-shaped adjustment rods (82) on both sides of the forming rod (81), the front side of the arc-shaped adjustment rod (82) is provided with an inwardly concave arc-shaped transition surface, the back side of the arc-shaped adjustment rod (82) is provided with a mounting groove (821), and the mounting block (811) provided on the back side of the forming rod (81) cooperates with the mounting groove (821).

7. The FPC board automatic bending device according to claim 6, characterized in that: The arc-shaped adjustment rods (82) are connected by a connecting frame (83), and the connecting frame (83) and the arc-shaped adjustment rods (82) are integrally formed. The bending portion support head (8) is detachably connected to the mounting seat (42) via the connecting frame (83), and the surfaces of the arc-shaped adjustment rods (82) and the forming rods (81) are both provided with vacuum adsorption holes (84).

8. The FPC board automatic bending device according to claim 7, characterized in that: A pressure sensor (812) is installed at the outer end of the forming rod (81), and the vacuum adsorption holes (84) on the forming rod (81) and the arc-shaped adjustment rod (82) are both provided with electric control valves. A controller (85) is installed on the back of the forming rod (81), and the controller (85) is connected to the pressure sensor (812) and the electric control valve.

9. The FPC board automatic bending device according to claim 1, characterized in that: The carrier plate (31) comprises a main frame (312) and auxiliary frames (313) on both sides, wherein the auxiliary frames (313) are connected to an outer servo motor (321), and the main frame (312) is slidably connected between the auxiliary frames (313) through an adjustment buffer mechanism (9), wherein the adjustment buffer mechanism (9) comprises strip-shaped protrusions (91) on both sides of the main frame (312), and a fourth electric motor (91) is installed on the auxiliary frame (313) to drive the strip-shaped protrusions (91) to move in a slide groove (92) on the auxiliary frame (313). The invention relates to a machine (93), wherein the lead screw on the output shaft of the fourth motor (93) cooperates with the thread sleeve in the strip-shaped protrusion (91) for transmission, and the strip-shaped protrusion (91) includes a main body shell (911) slidably connected to the slide groove (92) and a sliding block (912) integrally formed with the main frame (312), the length of the sliding block (912) is less than the length of the inner cavity of the main body shell (911), and the end of the sliding block (912) is connected to the end of the inner cavity of the main body shell (911) through an elastic element (913).

10. The FPC board automatic bending device according to claim 9, characterized in that: One end of the carrier plate (31) close to the servo motor (321) is rotatably connected to the mounting frame (32), and the other end of the carrier plate (31) is clamped in the bearing seat (322) at the top of the mounting plate, wherein the bearing seat (322) is slidably mounted on the top of the mounting plate and fixed to the mounting plate by fixing bolts around it, and the end of the carrier plate (31) is provided with a connecting shaft (314) that can be clamped with the bearing seat (322).

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