A tooling for an FPC fast press

Abstract

This application relates to the field of flexible circuit board manufacturing technology and discloses a tooling for an FPC fast press. It includes two guide rails fixed to the inner wall of the bottom of the FPC fast press. Each guide rail has a groove on its adjacent side, and a slide block is slidably installed in each groove. A common support platform is fixedly installed on the adjacent side of the two slide blocks. A snap-frame is detachably fixed to the top of the support platform. This application has the following advantages and effects: it can apply uniform downward vertical pressure to the taut FPC, achieving hot pressing and ensuring that the pressure is evenly transmitted to the entire processing surface of the FPC, avoiding product defects caused by uneven local stress and heating, effectively improving the pressing quality and consistency of the FPC. Furthermore, it facilitates the synchronous adjustment of the support platform, snap-frame, and U-shaped pressure strip to the front of the pressure plate for material handling, preventing workplace accidents caused by misoperation when the pressure plate moves downward, thus enhancing operational safety.

Description

Technical Field

[0001] This application relates to the field of flexible circuit board manufacturing technology, and in particular to a tooling for an FPC fast press. Background Technology

[0002] Flexible printed circuit boards (FPCs) are highly reliable and extremely flexible printed circuit boards made with polyimide or polyester film as the substrate. They are characterized by high wiring density, light weight, thinness, and good bendability. An FPC press is a mechanical device used for pressing FPCs. By placing the FPC board with the cover film attached into the press, high temperature and pressure are applied to completely cure the adhesive of the cover film, making it an integral part of the FPC substrate. Through pressing, a multi-layered circuit structure can be integrated, ensuring the insulation and signal transmission performance between each layer.

[0003] In the existing technology, the traditional tooling used with FPC fast presses often uses a single bearing platform to directly place the FPC, lacking an effective straightening and positioning structure. During the hot pressing process, the FPC is prone to local wrinkles and displacement. It is also easy for the pressure of the fast press to be unevenly transmitted to the entire processing surface of the FPC. Coupled with the temperature field distribution deviation of the heating components, it is very easy to cause defects such as local cold solder joints, interlayer blistering, and circuit damage in the FPC, which significantly increases production costs and rework workload.

[0004] Therefore, we propose a tooling for an FPC fast press to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a tooling for an FPC fast press, which can apply uniform downward vertical pressure to the taut FPC to achieve hot pressing, ensuring that the pressure is evenly transmitted to the entire processing surface of the FPC, avoiding product defects caused by uneven local stress and heating, effectively improving the pressing quality and consistency of the FPC, and facilitating the synchronous adjustment of the support platform, the frame, and the U-shaped pressure strip to the front of the pressure plate for material loading and unloading, preventing work-related accidents caused by the pressure plate moving downward due to misoperation, and enhancing the safety performance during operation.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a tooling for an FPC fast press includes two guide rails fixedly mounted on the inner wall of the bottom of the FPC fast press. Each of the two guide rails has a groove on one side close to each other, and a slide block is slidably installed in each of the two grooves. The same support platform is fixedly mounted on one side close to each other of the two slide blocks. A snap frame is detachably mounted on the top of the support platform. A U-shaped pressure strip is detachably mounted on the snap frame. The bottom of the U-shaped pressure strip is slidably installed in the snap frame. A drive assembly is provided on the guide rail on the left side. The drive assembly is used to control the horizontal linear sliding of the slide block on the left side.

[0007] A further feature of this application is that connecting ears are fixedly installed on the outer walls of both the left and right sides of the frame, and both connecting ears are fixed to the top of the support platform by screws.

[0008] The further configuration of this application is as follows: two slots are opened at the top of the frame, and magnet blocks are fixedly installed on the bottom inner walls of the two slots. Fixing ears are fixedly installed on the left and right outer walls of the U-shaped pressure strip. Steel inserts are fixedly installed at the bottom of the two fixing ears. The bottom ends of the two steel inserts are slidably installed in the corresponding slots, and the bottom ends of the two steel inserts are magnetically attracted and fixed to the corresponding magnet blocks.

[0009] A further configuration of this application is as follows: the drive assembly includes a threaded rod and a motor, the threaded rod is rotatably mounted in a slide groove located on the left side, a slide block located on the left side is threadedly sleeved on the threaded rod, the motor is fixedly mounted on the front outer wall of the guide rail located on the left side, and the output shaft end of the motor is fixedly connected to the front end of the threaded rod.

[0010] A further feature of this application is that a guide rod is fixedly installed in the groove on the right side, and the slide block on the right side is slidably sleeved on the guide rod.

[0011] A further configuration of this application is as follows: the rear side wall of the support platform abuts against the rear inner wall of the FPC fast press, a hydraulic cylinder is fixedly installed on the top inner wall of the FPC fast press, and a pressure plate is fixedly installed on the output shaft end of the hydraulic cylinder, with the pressure plate located directly above the U-shaped pressure strip.

[0012] A further feature of this application is that the pressure plate has a heating cavity with an opening on the left side, and an electric heating plate is fixedly installed inside the heating cavity.

[0013] A further provision of this application is that a reinforcing base located between two guide rails is fixedly installed on the bottom inner wall of the FPC fast press, and the top surface of the reinforcing base slides against the bottom surface of the support platform.

[0014] A further feature of this application is that the four outer walls of the U-shaped pressure strip are slidably attached to the four inner walls of the frame.

[0015] This application includes at least one of the following beneficial technical effects:

[0016] 1. This application utilizes steel inserts that slide into corresponding slots and are fixed by magnetic attraction between the steel inserts and magnets, enabling convenient assembly and disassembly of the U-shaped pressure strip. This not only facilitates the replacement and maintenance of the U-shaped pressure strip but also ensures that the FPC is stably and taut within the frame. During subsequent hot pressing of the FPC, this ensures that the FPC does not shift, enhancing the uniformity of the hot pressing pressure. Combined with the synergistic effect of the hydraulic cylinder, pressure plate, and electric heating plate, a uniform downward pressure can be applied to the taut FPC, achieving hot pressing processing. This ensures that the pressure is evenly transmitted to the entire processing surface of the FPC, avoiding product defects caused by uneven local stress and heating, and effectively improving the pressing quality and consistency of the FPC.

[0017] 2. This application utilizes a drive assembly to facilitate the synchronous adjustment of the support platform, the snap frame, and the U-shaped pressure strip to the front of the pressure plate for material loading and unloading. This prevents work-related accidents caused by misoperation or other reasons when the pressure plate moves downward, thus enhancing the safety performance during operation. Attached Figure Description

[0018] Figure 1 This is a front-view stereoscopic structural diagram of this embodiment.

[0019] Figure 2 This is a front view sectional three-dimensional structural schematic diagram of this embodiment.

[0020] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.

[0021] Figure 4 This is a top-view three-dimensional structural diagram of this embodiment.

[0022] Figure 5 This is a schematic diagram of the left-side stereoscopic structure of this embodiment.

[0023] Figure 6 This is a three-dimensional structural diagram of a U-shaped molding strip.

[0024] In the diagram, 1. FPC fast press; 2. Guide rail; 3. Slide rail; 4. Slide block; 5. Support platform; 6. Frame; 7. U-shaped pressure strip; 8. Connecting ear; 9. Screw; 10. Slot; 11. Magnet block; 12. Fixing ear; 13. Steel insert; 14. Threaded rod; 15. Motor; 16. Guide rod; 17. Hydraulic cylinder; 18. Pressure plate; 19. Electric heating plate; 20. Reinforcing base. Detailed Implementation

[0025] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] See Figures 1-6 This application provides a tooling for an FPC fast press, including two guide rails 2 fixedly mounted on the inner wall of the bottom of the FPC fast press 1. Each guide rail 2 has a groove 3 on one side close to the other. Each groove 3 has a slide seat 4 slidably mounted in the groove. The same support platform 5 is fixedly mounted on one side close to the other of the slide seats 4. A snap frame 6 is detachably mounted on the top of the support platform 5. A U-shaped pressure strip 7 is detachably mounted on the snap frame 6. The bottom of the U-shaped pressure strip 7 is slidably mounted in the snap frame 6. The four outer walls of the U-shaped pressure strip 7 are slidably attached to the four inner walls of the snap frame 6. The U-shaped pressure strip 7 can stably hold the FPC taut in the snap frame 6, ensuring that the FPC does not shift during the subsequent hot pressing process and enhancing the uniform pressure of the FPC during hot pressing.

[0027] In this embodiment, connecting ears 8 are fixedly installed on the outer walls of both the left and right sides of the frame 6. Both connecting ears 8 are fixed to the top of the support platform 5 by screws 9. The design of connecting ears 8 and screws 9 facilitates the disassembly and assembly of the frame 6, so as to facilitate the replacement or maintenance of the frame 6.

[0028] In this embodiment, two slots 10 are provided at the top of the frame 6. Magnet blocks 11 are fixedly installed on the bottom inner walls of the two slots 10. Fixing ears 12 are fixedly installed on the left and right outer walls of the U-shaped pressure strip 7. Steel inserts 13 are fixedly installed at the bottom of the two fixing ears 12. The bottom ends of the two steel inserts 13 are slidably installed in the corresponding slots 10, and the bottom ends of the two steel inserts 13 are magnetically attracted and fixed to the corresponding magnet blocks 11. By sliding the steel inserts 13 into the corresponding slots 10 and cooperating with the magnetic attraction and fixation between the steel inserts 13 and the magnet blocks 11, the U-shaped pressure strip 7 can be easily disassembled and assembled, so as to facilitate the replacement and maintenance of the U-shaped pressure strip 7.

[0029] In this embodiment, a drive assembly is provided on the left-side guide rail 2. The drive assembly is used to control the horizontal linear sliding of the left-side slide block 4. The drive assembly includes a threaded rod 14 and a motor 15. The threaded rod 14 is rotatably installed in the left-side slide groove 3. The left-side slide block 4 is threaded onto the threaded rod 14. The motor 15 is fixedly installed on the front outer wall of the left-side guide rail 2. The output shaft end of the motor 15 is fixedly connected to the front end of the threaded rod 14. The motor 15 is a reversible motor. The motor 15 is used to drive the threaded rod 14 to rotate. With the threaded connection to the left slide 4, when the threaded rod 14 rotates, the left slide 4 can be controlled to slide along the left slide groove 3, thereby adjusting the horizontal position of the bearing platform 5, the snap frame 6 and the U-shaped pressure strip 7. During loading and unloading operations, the bearing platform 5, the snap frame 6 and the U-shaped pressure strip 7 can be adjusted forward to the front of the pressure plate 18, so as not to cause work-related accidents when the pressure plate 18 moves downward due to misoperation or other reasons. After the material is placed, the bearing platform 5, the snap frame 6 and the U-shaped pressure strip 7 can be adjusted backward to the direct under the pressure plate 18 for precise hot pressing operations.

[0030] In this embodiment, a guide rod 16 is fixedly installed in the slide groove 3 on the right side, and the slide block 4 on the right side is slidably sleeved on the guide rod 16. The design of the guide rod 16 can enhance the stability of the support platform 5, the frame 6 and the U-shaped pressure strip 7 when they move horizontally.

[0031] In this embodiment, the rear side wall of the support platform 5 abuts against the rear inner wall of the FPC fast press 1. When the rear side wall of the support platform 5 abuts against the rear inner wall of the FPC fast press 1, the pressure plate 18 is located directly above the U-shaped pressure strip 7. A hydraulic cylinder 17 is fixedly installed on the top inner wall of the FPC fast press 1, and the pressure plate 18 is fixedly installed on the output shaft end of the hydraulic cylinder 17. The pressure plate 18 is located directly above the U-shaped pressure strip 7. A heating chamber with an open left side is opened inside the pressure plate 18. The heating chamber is fixed inside. An electric heating plate 19 is installed, and a hydraulic cylinder 17 is used to control the vertical lifting and lowering of the pressure plate 18. The electric heating plate 19 is used to heat the pressure plate 18. The electric heating plate 19 is a temperature-adjustable constant temperature electric heating plate, and its heating temperature is set according to the material of the FPC. By moving the pressure plate 18 vertically downward into the U-shaped pressure strip 7, vertical downward pressure can be applied to the FPC, which can uniformly and stably heat press the FPC, so that the product is subjected to uniform pressure, which helps to improve the quality and consistency of FPC pressing.

[0032] In this embodiment, a reinforcing base 20 located between two guide rails 2 is fixedly installed on the bottom inner wall of the FPC fast press machine 1. The top surface of the reinforcing base 20 slides and fits against the bottom surface of the support platform 5. The design of the reinforcing base 20 can support and reinforce the support platform 5, enhance the pressure resistance of the support platform 5, and prevent the support platform 5 from deforming under stress, thereby further ensuring the stability of the overall tooling structure and improving the reliability of FPC fast pressing.

[0033] In this embodiment, the motor 15, hydraulic cylinder 17 and electric heating plate 19 can all be purchased on the market. Their wiring connection method and control method are mature technologies in this field and have been fully disclosed. Therefore, they will not be described again in this article.

[0034] With the above structure, when the tooling for the FPC fast press provided in this application is in use, firstly, the control motor 15 is rotated forward, and the output shaft of the motor 15 drives the threaded rod 14 to rotate. Since the left slide 4 is threadedly connected to the threaded rod 14, the rotational motion of the threaded rod 14 is converted into the linear sliding of the slide 4 along the slide groove 3, which drives the bearing platform 5 and the top frame 6 and the U-shaped pressure strip 7 to move forward as a whole until they move out of the area below the pressure plate 18. Then, the motor 15 stops running, and then an upward force is applied to pull the U-shaped pressure strip 7 out of the frame 6. At this time, the two steel inserts 13 are respectively disengaged from the corresponding magnets. 11. Remove the corresponding slot 10 to complete the disassembly and removal of the U-shaped pressure strip 7. Then, flatten the FPC to be processed and place it on the support platform 5 and inside the frame 6. After placing it, put the U-shaped pressure strip 7 back into the frame 6 so that the two steel pins 13 at the bottom of the U-shaped pressure strip 7 are inserted into the corresponding slots 10 until the bottom ends of the two steel pins 13 abut against the corresponding magnets 11 and are attracted. This completes the fixing of the U-shaped pressure strip 7. The U-shaped pressure strip 7 can be used to stably hold the FPC straight in the frame 6 to ensure that it will not shift during subsequent hot pressing of the FPC.

[0035] After the FPC is taut and positioned, the control motor 15 is reversed. The output shaft of the motor 15 drives the threaded rod 14 to rotate in the opposite direction. The slide 4 drives the support platform 5, the top frame 6, and the U-shaped pressure strip 7 to move backward as a whole until the rear side wall of the support platform 5 touches the rear inner wall of the FPC fast press 1. At this time, the motor 15 stops running. At this time, the U-shaped pressure strip 7 is located directly below the pressure plate 18. Then, the electric heating plate 19 is turned on to generate heat, which is transferred to the pressure plate 18. Then, the hydraulic cylinder 17 is extended to control the pressure plate 18 to move vertically downward and gradually enter the U-shaped pressure strip 7. This applies a uniform downward pressure to the taut FPC below, achieving hot pressing. This ensures that the pressure is evenly transmitted to the entire processing surface of the FPC, avoiding product defects caused by uneven local stress and heat.

[0036] After the hot pressing process is completed, control the hydraulic cylinder 17 to retract and reset, which will control the pressure plate 18 to rise back to its original position. Then control the motor 15 to rotate forward again, so that the support platform 5, the top frame 6, and the U-shaped pressure strip 7 move forward as a whole until they are moved out of the area below the pressure plate 18. Then apply upward force to pull out the U-shaped pressure strip 7, and the hot-pressed FPC can be removed. Following the above operation steps, the next FPC can be processed.

Claims

1. A tooling for an FPC fast press, characterized in that, The system includes two guide rails (2) fixedly mounted on the inner wall of the bottom of the FPC fast press (1). Each of the two guide rails (2) has a groove (3) on one side close to each other. Each of the two grooves (3) has a slide seat (4) slidably mounted in it. The same support platform (5) is fixedly mounted on one side close to each other. A frame (6) is detachably mounted on the top of the support platform (5). A U-shaped pressure strip (7) is detachably mounted on the frame (6). The bottom of the U-shaped pressure strip (7) is slidably mounted in the frame (6). A drive assembly is provided on the guide rail (2) on the left side. The drive assembly is used to control the horizontal linear sliding of the slide seat (4) on the left side.

2. The tooling for the FPC fast press according to claim 1, characterized in that: Connecting ears (8) are fixedly installed on the outer walls of both sides of the frame (6), and both connecting ears (8) are fixed to the top of the support platform (5) by screws (9).

3. The tooling for the FPC fast press according to claim 1, characterized in that: The top of the frame (6) has two slots (10), and magnets (11) are fixedly installed on the bottom inner walls of the two slots (10). Fixing ears (12) are fixedly installed on the left and right outer walls of the U-shaped pressure strip (7). Steel pins (13) are fixedly installed at the bottom of the two fixing ears (12). The bottom ends of the two steel pins (13) are slidably installed in the corresponding slots (10), and the bottom ends of the two steel pins (13) are magnetically attracted and fixed on the corresponding magnets (11).

4. The tooling for the FPC fast press according to claim 1, characterized in that: The drive assembly includes a threaded rod (14) and a motor (15). The threaded rod (14) is rotatably mounted in a slide groove (3) on the left side. A slide block (4) on the left side is threaded onto the threaded rod (14). The motor (15) is fixedly mounted on the front outer wall of the guide rail (2) on the left side. The output shaft end of the motor (15) is fixedly connected to the front end of the threaded rod (14).

5. The tooling for the FPC fast press according to claim 4, characterized in that: A guide rod (16) is fixedly installed in the groove (3) on the right side, and the slide block (4) on the right side is slidably sleeved on the guide rod (16).

6. The tooling for the FPC fast press according to claim 1, characterized in that: The rear side wall of the support platform (5) abuts against the rear inner wall of the FPC fast press (1). A hydraulic cylinder (17) is fixedly installed on the top inner wall of the FPC fast press (1). A pressure plate (18) is fixedly installed on the output shaft end of the hydraulic cylinder (17). The pressure plate (18) is located directly above the U-shaped pressure strip (7).

7. The tooling for the FPC fast press according to claim 6, characterized in that: The pressure plate (18) has a heating cavity with an opening on the left side, and an electric heating plate (19) is fixedly installed in the heating cavity.

8. The tooling for the FPC fast press according to claim 1, characterized in that: A reinforcing base (20) located between two guide rails (2) is fixedly installed on the bottom inner wall of the FPC fast press (1). The top surface of the reinforcing base (20) slides against the bottom surface of the support platform (5).

9. The tooling for the FPC fast press according to claim 1, characterized in that: The four outer walls of the U-shaped pressure strip (7) are respectively slidably attached to the four inner walls of the frame (6).

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