A flexible circuit board adhesive vacuum pasting jig

By designing a flexible circuit board back glue vacuum adhesive fixture, using flip sticking components and vacuum adhesive technology, the problems of high production costs, low efficiency and high product defect rate of existing equipment are solved, and efficient and low-cost back glue bonding and dirt cleaning are achieved, which significantly reduces the product defect rate.

CN119095273BActive Publication Date: 2025-04-18SHENZHEN NAIDIANTE CIRCUIT BOARD CO LTD
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Patent Information

Application Number
CN202410908107.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-08
Publication Date
2025-04-18
Estimated Expiration
2044-07-08

AI Technical Summary

Technical Problem

The existing FPC flexible circuit board adhesive backing equipment has high production costs and low production efficiency. It fails to effectively clean the dirt on the circuit board surface, which affects the adhesive bonding effect and leads to an increase in product defect rate.

Method used

A flexible circuit board back glue vacuum adhesive fixture is designed, using flip sticking assembly and vacuum sticking technology, and the worm and rack transmission is driven by the motor to achieve 180-degree flip. It combines a vacuum generator and magnetic roller to clean up dirt, and performs secondary tightening after glue.

Benefits of technology

Improve production efficiency, reduce production costs, ensure the close integration of adhesive backing and flexible circuit boards, and significantly reduce product defect rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a flexible circuit board adhesive vacuum pasting jig, which relates to the technical field of flexible circuit board production, including a base and a flip pasting assembly, wherein vertical plates are symmetrically fixed on both sides of the top of the base, and the flip pasting assembly is arranged on the outside of the vertical plates on both sides, and the flip pasting assembly includes a mounting seat, a motor, a worm, a worm wheel, a screw, a slider, a slide seat, a rotating shaft, a half gear, an ear plate and a rack. During the use of the present invention, the excess part on the release paper is torn off and the adhesive part to be pasted is left, and then the release paper is placed as a whole in the notch in the middle of the mold base, and the connector on the side of the mold base is connected to the suction interface of the vacuum generator through a pipeline, and an adsorption force is generated on the adhesive body through the exhaust hole at the bottom of the notch, which plays a role of fixing and limiting. In the subsequent adhesive vacuum pasting process, the adhesive pasting position required for the flexible circuit board corresponds to the corresponding adhesive body, and the adhesive pasting process of all parts can be completed at one time.
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Description

Technical Field

[0001] The invention relates to the technical field of flexible circuit board production, in particular to a flexible circuit board adhesive backing vacuum pasting jig. Background Art

[0002] FPC flexible circuit boards are characterized by being light, thin, short and small, so they are also the best choice for most smart electronic products. Flexible circuit boards are also prone to being hit, folded, and scratched during use. They have low mechanical strength and are prone to cracking. Therefore, the purpose of bonding reinforcement materials is to enhance the mechanical strength of FPC flexible circuit boards and facilitate the installation of parts on the PCB surface. There are many types of reinforcement films used for flexible circuit boards, depending on the different requirements of the product, mainly PET, PI, adhesive backing, metal or resin reinforcement plates, etc.

[0003] At present, the mainstream FPC back glue sticking equipment on the market usually uses a truss robot with visual positioning to operate. It has high production costs and usually only has one workstation. The glue is applied in sequence at the required gluing positions, which affects the production efficiency. In addition, the circuit board surface is not cleaned before gluing, and the gluing parts are not pressed for a second time after gluing, so that the dirt remaining on the circuit board surface affects the bonding effect of the back glue, thereby increasing the product defective rate.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a flexible circuit board back adhesive vacuum bonding fixture is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a flexible circuit board adhesive vacuum bonding jig to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flexible circuit board adhesive vacuum pasting jig, comprising a base and a flip pasting assembly, wherein vertical plates are symmetrically fixed on both sides of the top of the base, and the flip pasting assembly is arranged on the outer sides of the vertical plates on both sides, and the flip pasting assembly comprises a mounting seat, a motor, a worm, a worm wheel, a lead screw, a slider, a slide seat, a rotating shaft, a half gear, an ear plate and a rack, a motor is fixed on the side of the mounting seat, and a worm is fixedly connected to the output end of the motor, a worm is engaged and driven with a worm wheel at the head end and the end side of the worm, and a lead screw is coaxially connected to the middle part of the worm wheel, the middle part of the lead screw is threadedly matched with the slider, and the slider is slidably installed inside the slide seat, a rotating shaft is rotatably installed on the inner side of the slide seat on both sides through a bearing, and a half gear is coaxially fixed on one side of the rotating shaft, an ear plate is fixed on the side of the slide seat adjacent to the half gear, and a rack is fixed at the end of the ear plate.

[0007] Furthermore, the motor transmits rotational transmission to two worm wheels located at the head end and the tail end through the worm, and the lead screw coaxially disposed in the middle of the worm wheel transmits threaded transmission to the slider.

[0008] Furthermore, the sliding block is slidably installed inside the hollow groove in the middle of the sliding seat, and the sheet metal at the root of the sliding seat is welded and fixed to the top middle ends of the vertical plates on both sides.

[0009] Furthermore, the rack is arranged parallel to the side surface of the half gear, and the rack is rotated toward the inner shaft of the slide seat on both sides through meshing with the circumferential gear teeth of the half gear.

[0010] Furthermore, through holes are correspondingly provided in the middle of the vertical plates on both sides, vacuum generators are provided at the bottoms of the opposite surfaces of the vertical plates on both sides, and connecting plates are fixed at the tops of the opposite surfaces of the vertical plates on both sides.

[0011] Furthermore, the top of the connecting plates on both sides are screwed to fix a glue mold assembly, and the glue mold assembly includes a mold base, a connecting head, a recess, exhaust holes and a glue-backing body. A connecting head is provided on the side of the mold base, and the connecting head is connected to the suction interface of the vacuum generator through a pipeline. An inwardly recessed recess is provided at the middle end of the top of the mold base, and exhaust holes are evenly arranged on the bottom plane of the recess. The glue-backing body is placed inside the recess, and the adhesive surface of the glue-backing body faces upward.

[0012] Furthermore, an FPC pasting jig is coaxially fixed to the middle of the rotating shaft, and the FPC pasting jig includes a base, a mounting hole, a panel and a suction hole. The base is coaxially fixed to the middle of the rotating shaft through a clamp, and mounting holes are symmetrically provided on both sides of the top of the base. A panel is fixed to the top of the base by screws, and an array of suction holes compatible with the product are provided on the surface of the panel.

[0013] Furthermore, the FPC pasting jig also includes a cavity, a sealing ring, a vacuum interface, a partition and a channel. A cavity recessed inwardly is opened at the middle end of the top of the base, and sealing rings are arranged around the cavity opening. A vacuum interface is opened at the bottom end of the cavity, and several partitions are arranged inside the cavity. A channel is opened in the middle of the partition, and adjacent cavities are connected through the channel.

[0014] Furthermore, the FPC pasting jig also includes a bracket, an exhaust pipe and a tension spring. The brackets are symmetrically fixed at the front and rear ends of the base, and the exhaust pipe is connected to one side of the bracket, and the tension spring is fixed to the other side of the bracket.

[0015] Furthermore, the FPC pasting jig also includes a magnet and a roller. The magnet is slidably installed inside the hole in the bracket, and the rollers are magnetically adsorbed on the opposite surfaces of the magnets on both sides, and the rollers roll with the flexible circuit board adsorbed on the panel surface.

[0016] The present invention provides a flexible circuit board adhesive vacuum pasting jig, which has the following beneficial effects:

[0017] 1. During the use of the present invention, in the initial state, the cavity opening of the FPC pasting fixture faces upward. The user selects a panel with suction holes that match the current shape of the flexible circuit board and fixes it to the base with screws. The sealing rings arranged around the cavity opening can effectively ensure the airtightness of the cavity. When in use, the vacuum pipeline extending from the vacuum generator is connected to the vacuum interface at the bottom of the cavity, and the adjacent cavities are connected through the channel in the middle of the partition, so that the array of suction holes on the panel generates equal suction to adsorb and fix the flexible circuit board. The present application can simultaneously adsorb and fix an array of flexible circuit boards and glue them by opening an array of suction holes that match the product on the surface of the panel. The multi-station design effectively improves production efficiency. Before the glue pasting process begins, the exhaust pipe on one side of the bracket generates suction, so that the corresponding bracket The magnet inside overcomes the elastic force of the tension spring to produce displacement, and the magnetically adsorbed rollers between the magnets on both sides roll with the flexible circuit board adsorbed on the surface of the panel to clean the dirt on the surface of the flexible circuit board to ensure the bonding effect of the subsequent adhesive backing body. After the gluing process is completed, the exhaust pipe on one side of the bracket is disconnected from the vacuum pipeline, and the magnet is reset in the bracket under the elastic force of the tension spring. The corresponding rollers are again located on the surface of the flexible circuit board and roll over, and the gluing position on the surface of the flexible circuit board is tightened for a second time to ensure the tightness of the combination of the adhesive backing body and the flexible circuit board. The present application ensures the bonding effect of the adhesive backing body and the flexible circuit board by cleaning the surface of the flexible circuit board before the start of the gluing process and tightening the adhesive backing position of the flexible circuit board for a second time after the gluing process is completed, thereby reducing the product defective rate.

[0018] 2. During the use of the present invention, after the adsorption and fixation of the flexible circuit board and the initial rolling cleaning of the roller are completed, the motor is enabled to drive the worm to rotate and transmit to the two worm wheels located at the head end and the end, and the coaxial lead screw in the middle of the worm wheel is further threaded to the slider, so that the sliders on both sides are located at the corresponding lowered height in the slide seat, and the rack is rotated to the inner shaft of the slide seat on both sides through the engagement with the circumferential gear teeth of the half gear, so that the FPC pasting jig is flipped 180 degrees. At this time, the flexible circuit board faces down and is combined with the adhesive backing body in the mold seat to complete the glue pasting process. The present application sets a flip pasting component so that the cavity opening of the FPC pasting jig faces upward in the initial state, which is convenient for the staff to load the flexible circuit board. In the working state, the FPC pasting jig automatically flips and cooperates with the glue pasting mold component to complete the glue pasting process. Only one motor is needed as the power source throughout the process. The reasonable structural design reduces the production cost while greatly improving the convenience of production.

[0019] 3. During the use of the present invention, the excess part of the release paper is torn off and the adhesive part to be pasted is left. Then the release paper is placed as a whole in the recess in the middle of the mold base. The connector on the side of the mold base is connected to the suction interface of the vacuum generator through a pipeline. The suction hole at the bottom of the recess generates adsorption force on the adhesive body, which plays a role of fixing and limiting. In the subsequent adhesive vacuum pasting process, the required adhesive position of the flexible circuit board corresponds to the corresponding adhesive body, and the adhesive pasting process of all parts can be completed at one time, which greatly improves the adhesive pasting accuracy and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the initial state of the device of the present invention;

[0021] Figure 2 It is a schematic diagram of the working state structure of the device of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the flip and paste assembly of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the glue-applying mold assembly of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the FPC pasting jig of the present invention;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the bracket of the present invention.

[0026] In the figure: 1, base; 2, vertical plate; 3, through hole; 4, vacuum generator; 5, connecting plate; 6, glue sticking mold assembly; 601, mold base; 602, connector; 603, notch; 604, exhaust hole; 605, adhesive body; 7, flip sticking assembly; 701, mounting base; 702, motor; 703, worm; 704, worm wheel; 705, screw; 706, slider; 707, slide seat; 708, screw rod; 709, screw rod; 710, screw rod; 711, screw rod; 712, screw rod; 713, screw rod; 714, screw rod; 715, screw rod; 716, screw rod; 717, screw rod; 718, screw rod; 719, screw rod; 720, screw rod; 721, screw rod; 722, screw rod; 723, screw rod; 724, screw rod; 725, screw rod; 726, screw rod; 727, screw rod; 728, screw rod; 729, screw rod; 730, screw rod; 731, screw rod; 732, screw rod; 733, screw rod; 734, screw rod; 735, screw rod; 736, screw rod; 737, screw rod; 738, screw rod; 739, screw rod; 740, screw rod; 741, screw rod; 742, screw rod; 743, screw rod; 744, screw rod; 745, screw rod; 746, screw rod; 747, screw rod; 748, screw rod; 749, screw rod; 750, screw rod; 751, screw rod; 752, screw rod; 753, screw rod; 08, rotating shaft; 709, half gear; 710, ear plate; 711, rack; 8, FPC pasting jig; 801, base; 802, mounting hole; 803, panel; 804, suction hole; 805, cavity; 806, sealing ring; 807, vacuum interface; 808, partition; 809, channel; 810, bracket; 811, exhaust pipe; 812, tension spring; 813, magnet; 814, roller. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0028] See also Figures 1 to 3The present invention provides a technical solution: a flexible circuit board adhesive vacuum pasting fixture, comprising a base 1 and a flip pasting component 7, wherein vertical plates 2 are symmetrically fixed on both sides of the top of the base 1, and the flip pasting component 7 is arranged on the outer sides of the vertical plates 2 on both sides, and the flip pasting component 7 comprises a mounting seat 701, a motor 702, a worm 703, a worm wheel 704, a screw 705, a slider 706, a slide seat 707, a rotating shaft 708, a half gear 709, an ear plate 710 and a rack 711, a motor 702 is fixed on the side of the mounting seat 701, and a worm 703 is fixedly connected to the output end of the motor 702, a worm 704 is engaged with the head end of the worm 703 and the end side, and a screw 705 is coaxially connected to the middle part of the worm wheel 704, and the middle part of the screw 705 is threadedly matched with the slider 706, and the slider 706 is slidably installed on the slide Inside the seat 707, a rotating shaft 708 is rotatably installed on the inner side of the slide seats 707 on both sides through bearings, and a half gear 709 is coaxially fixed on one side of the rotating shaft 708, an ear plate 710 is fixed on the side of the slide seat 707 adjacent to the half gear 709, and a rack 711 is fixed at the end of the ear plate 710, the motor 702 is driven to rotate to the two worm wheels 704 located at the head end and the end through the worm 703, and the coaxial lead screw 705 in the middle of the worm wheel 704 is threadedly driven to the slider 706, the slider 706 is slidably installed inside the hollow groove in the middle of the slide seat 707, and the sheet metal at the root of the slide seat 707 is welded and fixed to the top middle end of the vertical plates 2 on both sides, the rack 711 is arranged in parallel on the side of the half gear 709, and the rack 711 is driven to rotate to the rotating shaft 708 inside the slide seats 707 on both sides through meshing with the circumferential gear teeth of the half gear 709;

[0029] The specific operation is as follows: after the adsorption and fixation of the flexible circuit board and the initial rolling cleaning of the roller 814 are completed, the motor 702 is activated to drive the worm 703 to rotate and transmit to the two worm wheels 704 located at the head end and the tail end, and further the coaxial screw 705 in the middle of the worm wheel 704 is threadedly transmitted to the slider 706, so that the sliders 706 on both sides are located in the corresponding slide seat 707 and lowered in height, and the rack 711 is rotated and transmitted to the inner shaft 708 of the slide seat 707 on both sides through the meshing with the circumferential gear teeth of the half gear 709, so that the FPC pasting jig 8 is 180 degrees. Ten degrees flip, at this time, the flexible circuit board faces downward and is combined with the adhesive backing body 605 in the mold base 601 to complete the gluing process. The present application sets the flip-pasting component 7 so that the cavity 805 of the FPC pasting jig 8 opens upward in the initial state, which is convenient for the staff to load the flexible circuit board. In the working state, the FPC pasting jig 8 automatically flips and cooperates with the gluing mold component 6 to complete the gluing process. Only one motor 702 is needed as the power source throughout the process. The reasonable structural design reduces the production cost and greatly improves the convenience of production;

[0030] See also Figure 4, through holes 3 are correspondingly provided in the middle of the two side vertical plates 2, and vacuum generators 4 are provided at the bottom of the opposite surfaces of the two side vertical plates 2, and connecting plates 5 are fixed at the tops of the opposite surfaces of the two side vertical plates 2, and the tops of the two side connecting plates 5 are screwed with glue sticking mold assemblies 6, and the glue sticking mold assembly 6 includes a mold base 601, a connector 602, a recess 603, an exhaust hole 604 and a back glue body 605. A connector 602 is provided on the side of the mold base 601, and the connector 602 is connected to the suction interface of the vacuum generator 4 through a pipeline. An inwardly concave recess 603 is opened at the middle end of the top of the mold base 601, and exhaust holes 604 are evenly arranged on the plane of the bottom of the recess 603, and a back glue body 605 is placed inside the recess 603, and the adhesive surface of the back glue body 605 faces upward;

[0031] The specific operation is as follows: tear off the excess part of the release paper and leave the adhesive part to be pasted, then place the release paper as a whole into the notch 603 in the middle of the mold base 601, and connect the connector 602 on the side of the mold base 601 to the suction interface of the vacuum generator 4 through a pipeline, and generate adsorption force on the adhesive body 605 through the exhaust hole 604 at the bottom of the notch 603, which plays a role of fixing and limiting. In the subsequent adhesive vacuum pasting process, the required adhesive pasting position of the flexible circuit board corresponds to the corresponding adhesive body 605, and the adhesive pasting process of all parts can be completed at one time, which greatly improves the adhesive pasting accuracy and production efficiency;

[0032] See also Figure 5 to Figure 6 , an FPC pasting jig 8 is coaxially fixed to the middle of the rotating shaft 708, and the FPC pasting jig 8 includes a base 801, a mounting hole 802, a panel 803 and a suction hole 804. The base 801 is coaxially fixed to the middle of the rotating shaft 708 through a clamp, and mounting holes 802 are symmetrically opened on both sides of the top of the base 801. A panel 803 is fixed to the top of the base 801 by screws, and an array of suction holes 804 adapted to the product are opened on the surface of the panel 803. The FPC pasting jig 8 also includes a cavity 805, a sealing ring 806, a vacuum interface 807, a partition 808 and a channel 809. An inwardly concave cavity 805 is opened at the middle end of the top of the base 801, and a sealing ring 806 is arranged around the opening of the cavity 805. The bottom end of the cavity 805 is opened A vacuum interface 807, and several partitions 808 are arranged inside the cavity 805, a channel 809 is opened in the middle of the partition 808, and adjacent cavities 805 are connected through the channel 809, the FPC pasting jig 8 also includes a bracket 810, an exhaust pipe 811 and a tension spring 812, the bracket 810 is symmetrically fixed at the front and rear ends of the base 801, and the exhaust pipe 811 is connected to one side of the bracket 810, and the tension spring 812 is fixed on the other side of the bracket 810, the FPC pasting jig 8 also includes a magnet 813 and a roller 814, a magnet 813 is slidably installed inside the hole of the bracket 810, and rollers 814 are magnetically adsorbed on the opposite surfaces of the magnets 813 on both sides, and the rollers 814 roll with the flexible circuit board adsorbed on the surface of the panel 803;

[0033] The specific operation is as follows. In the initial state, the cavity 805 of the FPC pasting fixture 8 is opened upward. The user selects the panel 803 that matches the suction hole 804 according to the shape of the current flexible circuit board, and fixes it to the base 801 with screws. The sealing ring 806 arranged around the opening of the cavity 805 can effectively ensure the airtightness of the cavity 805. When in use, the vacuum pipeline extending from the vacuum generator 4 is connected to the vacuum interface 807 at the bottom of the cavity 805, and the adjacent cavities 805 are connected through the channel 809 in the middle of the partition, so that the array of suction holes 804 on the panel 803 generates equal suction to adsorb and fix the flexible circuit board. The present application can simultaneously adsorb, fix and glue the array of flexible circuit boards by opening an array of suction holes 804 that are compatible with the product on the surface of the panel 803. The multi-station design effectively improves production efficiency. Before the glue pasting process begins, the exhaust pipe 811 on one side of the bracket 810 generates suction, so that the corresponding The magnet 813 in the bracket 810 overcomes the elastic force of the tension spring 812 to produce displacement, and the magnetically adsorbed roller 814 between the magnets 813 on both sides rolls with the flexible circuit board adsorbed on the surface of the panel 803 to clean the dirt on the surface of the flexible circuit board to ensure the bonding effect of the subsequent adhesive body 605. After the gluing process is completed, the exhaust pipe 811 on one side of the bracket 810 is disconnected from the vacuum pipeline, and the magnet 813 is reset in the bracket 810 under the elastic force of the tension spring 812. The corresponding roller 814 is also located on the surface of the flexible circuit board again and rolls over, and the gluing position on the surface of the flexible circuit board is tightened for a second time to ensure the tightness of the adhesive body 605 and the flexible circuit board. The present application ensures the bonding effect of the adhesive body 605 and the flexible circuit board by cleaning the surface of the flexible circuit board before the start of the gluing process and tightening the adhesive position of the flexible circuit board for a second time after the gluing process is completed, thereby reducing the product defective rate.

[0034] In summary, when using the flexible circuit board adhesive vacuum pasting jig, tear off the excess part of the release paper and leave the adhesive part to be pasted, then place the release paper as a whole into the recess 603 in the middle of the mold base 601, and the connector 602 on the side of the mold base 601 is connected to the suction interface of the vacuum generator 4 through a pipeline, and an adsorption force is generated on the adhesive body 605 through the exhaust hole 604 at the bottom of the recess 603, which plays a role in fixing and limiting. In the subsequent adhesive vacuum pasting process, the required adhesive position of the flexible circuit board corresponds to the corresponding adhesive body 605, and the adhesive pasting process of all parts can be completed at one time, which greatly improves the adhesive pasting accuracy and production efficiency. In the initial state, the cavity 805 of the FPC pasting jig 8 is open upward, and the user adjusts the cavity 805 according to the current The appearance of the flexible circuit board selects a panel 803 that is compatible with the suction hole 804 and is fixed to the base 801 by screws. The sealing ring 806 arranged around the opening of the cavity 805 can effectively ensure the airtightness of the cavity 805. When in use, the vacuum pipeline extending from the vacuum generator 4 is connected to the vacuum interface 807 at the bottom of the cavity 805, and the adjacent cavities 805 are connected through the channel 809 in the middle of the partition, so that the array of suction holes 804 on the panel 803 generates equal suction to adsorb and fix the flexible circuit board. The present application opens an array of suction holes 804 that are compatible with the product on the surface of the panel 803, and can simultaneously adsorb, fix and glue the array of flexible circuit boards. The multi-station design effectively improves production efficiency and is convenient to open in the glue sticking process. Before the start, the exhaust pipe 811 on one side of the bracket 810 generates suction, so that the magnet 813 in the corresponding bracket 810 overcomes the elastic force of the tension spring 812 to generate displacement, and the magnetically adsorbed roller 814 between the magnets 813 on both sides rolls with the flexible circuit board adsorbed on the surface of the panel 803 to clean the dirt on the surface of the flexible circuit board to ensure the subsequent bonding effect of the adhesive backing body 605. After the gluing process is completed, the exhaust pipe 811 on one side of the bracket 810 is disconnected from the vacuum pipeline, and the magnet 813 is reset in the bracket 810 under the elastic force of the tension spring 812, and the corresponding roller 814 is again located on the surface of the flexible circuit board and rolls over, and the gluing position on the surface of the flexible circuit board is tightened for a second time to ensure that the adhesive backing body 605 and the flexible circuit board are bonded. The application ensures the bonding effect between the adhesive backing body 605 and the flexible circuit board and reduces the product defect rate by cleaning the surface of the flexible circuit board before the gluing process and performing secondary tightening of the gluing position of the flexible circuit board after the gluing process. After the adsorption and fixation of the flexible circuit board and the initial rolling cleaning of the roller 814 are completed, the motor 702 is activated to drive the worm 703 to rotate and transmit to the two worm wheels 704 located at the head end and the end. The screw rod 705 coaxial in the middle of the worm wheel 704 is further threaded to the slider 706, so that the sliders 706 on both sides are located in the corresponding slide seat 707 and lowered. The rack 711 is rotated and transmitted to the inner shaft 708 of the slide seat 707 on both sides through the meshing with the circumferential gear teeth of the half gear 709.The FPC pasting jig 8 is turned over 180 degrees. At this time, the flexible circuit board faces downward and is combined with the adhesive backing body 605 in the mold base 601 to complete the pasting process. The present application sets the flip pasting component 7 so that the cavity 805 of the FPC pasting jig 8 faces upward in the initial state, which is convenient for the staff to load the flexible circuit board. In the working state, the FPC pasting jig 8 automatically turns over and cooperates with the pasting mold component 6 to complete the pasting process. Only one motor 702 is needed as the power source throughout the process. The reasonable structural design reduces the production cost and greatly improves the convenience of production.

[0035] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. A flexible circuit board adhesive vacuum bonding jig, characterized in that: The invention comprises a base (1) and a flip-paste assembly (7), wherein vertical plates (2) are symmetrically fixed on both sides of the top of the base (1), and the flip-paste assembly (7) is arranged on the outer sides of the vertical plates (2) on both sides. The flip-paste assembly (7) comprises a mounting seat (701), a motor (702), a worm (703), a worm wheel (704), a screw (705), a slider (706), a slide seat (707), a rotating shaft (708), a half gear (709), an ear plate (710) and a rack (711), wherein a motor (702) is fixed on the side of the mounting seat (701), and a worm (703) is fixedly connected to the output end of the motor (702), and a worm wheel (704) is engaged and driven between the head end and the end side of the worm (703), A screw rod (705) is coaxially connected to the middle of the worm wheel (704), the middle of the screw rod (705) is threadedly matched with the slider (706), and the slider (706) is slidably installed inside the slide seat (707), and a rotating shaft (708) is rotatably installed on the inner side of the slide seat (707) on both sides through bearings, and a half gear (709) is coaxially fixed to one side of the rotating shaft (708), an ear plate (710) is fixed to the side of the slide seat (707) adjacent to the half gear (709), and a rack (711) is fixed to the end of the ear plate (710), and an FPC pasting jig (8) is coaxially fixed to the middle of the rotating shaft (708), and the FPC pasting jig (8) includes a base (801), a mounting hole (802), a panel (803) and a suction cup (804). The base (801) is coaxially fixed to the middle of the rotating shaft (708) through a clamp, and mounting holes (802) are symmetrically opened on both sides of the top of the base (801). A panel (803) is fixed to the top of the base (801) by screws, and a plurality of suction holes (804) adapted to the product are opened on the surface of the panel (803). The FPC pasting jig (8) also includes a cavity (805), a sealing ring (806), a vacuum interface (807), a partition (808) and a channel (809). A cavity (805) recessed inwardly is opened at the middle end of the top of the base (801), and sealing rings (806) are arranged around the opening of the cavity (805). A vacuum interface (807) is opened at the bottom of the cavity (805). The cavity (805) has a plurality of partitions (808) disposed therein, a channel (809) being provided in the middle of the partition (808), and adjacent cavities (805) are connected to each other through the channel (809). The FPC pasting jig (8) further comprises a bracket (810), an exhaust pipe (811) and a tension spring (812). The brackets (810) are symmetrically fixed at the front and rear ends of the base (801), and one side of the bracket (810) is connected to the exhaust pipe (811), and the other side of the bracket (810) is fixed with a tension spring (812). The FPC pasting jig (8) further comprises a magnet (813) and a roller (814). The magnet (813) is slidably installed in the middle hole of the bracket (810).The opposite surfaces of the magnets (813) on both sides are magnetically adsorbed with rollers (814), and the rollers (814) roll in cooperation with the flexible circuit board adsorbed on the surface of the panel (803).

2. A flexible circuit board adhesive vacuum pasting jig according to claim 1, characterized in that: The motor (702) is driven to rotate two worm wheels (704) located at the head end and the tail end through the worm (703), and the screw rod (705) coaxial in the middle of the worm wheel (704) is threadedly driven to the slider (706).

3. A flexible circuit board adhesive vacuum pasting jig according to claim 1, characterized in that: The sliding block (706) is slidably mounted inside the hollow groove in the middle of the sliding seat (707), and the root of the sliding seat (707) is fixed to the top middle end of the vertical plates (2) on both sides by sheet metal welding.

4. The flexible circuit board adhesive vacuum pasting jig according to claim 1, characterized in that: The rack (711) is arranged parallel to the side of the half gear (709), and the rack (711) is rotated and transmitted toward the inner rotating shaft (708) of the sliding seat (707) on both sides through meshing with the circumferential gear teeth of the half gear (709).

5. The flexible circuit board adhesive vacuum bonding jig according to claim 1, characterized in that: Through holes (3) are correspondingly provided in the middle of the vertical plates (2) on both sides, vacuum generators (4) are provided at the bottoms of the opposite surfaces of the vertical plates (2) on both sides, and connecting plates (5) are fixed at the tops of the opposite surfaces of the vertical plates (2) on both sides.

6. A flexible circuit board adhesive vacuum pasting jig according to claim 5, characterized in that: The top of the connecting plates (5) on both sides are fixed with a glue sticking mold assembly (6) by screws. The glue sticking mold assembly (6) includes a mold base (601), a connecting head (602), a recess (603), an exhaust hole (604) and a glue backing body (605). A connecting head (602) is arranged on the side of the mold base (601), and the connecting head (602) is connected to the suction interface of the vacuum generator (4) through a pipeline. An inwardly recessed recess (603) is opened at the middle end of the top of the mold base (601), and the exhaust holes (604) are evenly arranged on the bottom plane of the recess (603). The glue backing body (605) is placed inside the recess (603), and the adhesive surface of the glue backing body (605) faces upward.

Citation Information

Patent Citations

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