Precise FPC (Flexible Printed Circuit) automatic tray filling and packaging device

Abstract

The invention discloses a precise FPC (flexible printed circuit) automatic tray packing device, which relates to the technical field of FPC tray packing, and comprises an upper die, a lower die, an automatic lifting die assembly mechanism and a die assembly effect improving mechanism, the automatic lifting mold closing mechanism comprises a lifting sliding block with a cavity inside, a first guide groove formed in the lifting sliding block in a lifting and sliding mode and a guide piece arranged on the cylinder wall of the lifting sliding block, and a threaded rod fixedly connected with the first guide groove is arranged in the guide piece in a sliding mode. Through cooperative arrangement of the lifting sliding block, the first guide groove, the guide piece and the threaded rod, the lifting sliding block with an inner cavity serves as a bearing base body, accurate guiding is provided for lifting of the first guide groove through sliding fit of the character-shaped guide piece and the threaded rod fixed to the first guide groove, and transverse deflection of the first guide groove is limited; and accurate alignment during mold closing and separating of the upper mold and the lower mold is ensured, the problem of mold closing deviation caused by gaps and abrasion of an existing positioning column is solved, and it is ensured that a pressure head is accurately aligned with a slotted hole.

Description

Technical Field

[0001] This invention relates to the field of FPC tray packaging technology, specifically to a precision FPC automatic tray packaging device. Background Technology

[0002] Flexible printed circuit boards (FPCs) are widely used in consumer electronics, communication equipment and other fields due to their thinness and flexibility. The packaging process of FPCs must ensure the positional accuracy, surface cleanliness and structural integrity of the FPCs in order to avoid problems such as circuit damage and poor connection during subsequent assembly.

[0003] Existing FPC pallet packaging equipment typically employs an upper and lower mold mating structure, such as... Figure 1 and Figure 2 As shown, the device includes an upper mold 1, a pressing head 2, a lower mold 3, slots 4, positioning posts, an adhesive layer 5, and an adhesive layer mounting cylinder 6. The lower surface of the upper mold 1 is arrayed with several pressing heads 2 that are adapted to the shape of the FPC. The upper surface of the lower mold 3 is provided with several slots 4 corresponding to the pressing heads 2. The slots 4 areas of the lower mold 3 are covered with adhesive layer mounting cylinders 6 for fixing the FPC. The upper and lower molds are positioned by the positioning posts and adhesive layer 5. When the mold is closed, the pressing heads 2 press the FPC into the slots 4 and attach it to the surface of the adhesive layer mounting cylinder 6, thus completing the tray packaging of the FPC.

[0004] However, this existing technology has significant drawbacks in practical applications: First, the positioning accuracy is insufficient. The upper and lower molds rely solely on the positioning post adhesive layer 5 for positioning, without clearly defining their fitting clearance and tolerance level. During mold closing, machining and assembly errors can easily cause the upper mold 1 and lower mold 3 to shift, and the pressure head 2 cannot accurately align with the FPC in the slot 4, resulting in FPC bonding position deviation and poor adhesion with the adhesive layer mounting cylinder 6. Second, the mold closing stability is poor. After long-term use, the positioning post adhesive layer 5 is prone to wear, and the positioning holes enlarge, increasing the positioning clearance. This not only leads to a gradual decrease in mold closing accuracy but also makes it easy for the positioning post adhesive layer 5 to jam or bend, increasing mold maintenance costs. Third, the operating efficiency and consistency are low. Existing devices rely on manual mold closing and splitting, and there is no unified standard for mold closing force and speed, which can easily cause FPC wrinkles, breakage, or poor adhesion. Furthermore, the manual cycle time is difficult to adapt to the needs of automated mass production. Summary of the Invention

[0005] To solve the above-mentioned technical problems, a precision FPC automatic tray packaging device is provided, which solves the problems existing in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a precision FPC automatic tray packaging device, including an upper mold with a pressure head, a lower mold with slots and mounting cylinders laid in the slot area, and an automatic lifting and closing mold mechanism and a mold closing effect improvement mechanism.

[0007] The automated lifting and mold closing mechanism includes a lifting slider with an internal cavity, a guide groove 1 that is slidably disposed within the lifting slider, and a guide member that is opened on the wall of the lifting slider. A threaded rod that is fixedly connected to the guide groove 1 is slidably disposed within the guide member.

[0008] The mold closing effect enhancement mechanism includes two support frames symmetrically distributed on the top surface of the upper mold and a pressure roller horizontally arranged between the two support frames. A guide groove II is provided through the support frame. The guide groove II is composed of vertical grooves and oblique grooves that are interconnected. The pressure roller can slide along the trajectory of the guide groove II.

[0009] Preferably, the automated lifting and closing mechanism further includes a drive unit for driving the guide groove to lift.

[0010] The drive unit includes a drive motor vertically disposed within the lifting slider. The guide groove is threaded onto the shaft of the drive motor. A connecting ear plate is installed at the top of the lifting slider. The top of the drive motor rotates out of the lifting slider and is fixedly connected to the output end of the connecting ear plate.

[0011] Preferably, the vertical groove of the second guide groove is provided with a movable rod, and the vertical groove of the second guide groove is also provided with an elastic locking component for positioning the movable rod. The cylinder wall of the lifting slider is provided with a magnetic unlocking component that cooperates with the elastic locking component.

[0012] The elastic clip includes a limiting post that abuts against the lower end of the movable roller. One end of the limiting post extends out of the support frame and is fixed with a movable piece. The movable piece is elastically and movably connected to the pressure roller. The other end of the limiting post is provided with a downward-facing sloping surface.

[0013] Preferably, the magnetic unlocking component includes a connecting frame that is perpendicularly fixed to the wall of the lifting slider cylinder and a second magnet embedded in one side of the connecting frame, and a magnetic sheet corresponding to the second magnet is embedded in the side of the movable piece facing away from the limiting post.

[0014] Preferably, the guide member is in the shape of a character, and the character-shaped guide member includes a vertical segment and a horizontal segment that are interconnected. The vertical segment extends along the axial direction of the lifting slider, and the horizontal segment extends along the circumference of the lifting slider.

[0015] Preferably, the end of the threaded rod away from the guide groove and the bottom of the lifting slider cylinder wall are both provided with connecting lugs, and the two connecting lugs are respectively detachably connected to the upper mold and the lower mold.

[0016] Compared with the prior art, the advantages of the present invention are as follows: through the coordinated arrangement of the lifting slider, guide groove 1, guide member and threaded rod, the lifting slider with the internal cavity is used as the bearing base, and the sliding cooperation between the U-shaped guide member and the threaded rod fixed on the guide groove 1 provides precise guidance for the lifting of the guide groove 1, restricts its lateral deviation, and ensures accurate alignment when the upper mold and lower mold are joined and separated. This solves the problem of mold offset caused by gap and wear of the existing positioning column, and ensures that the pressure head is accurately aligned with the slot hole.

[0017] Furthermore, relying on the U-shaped structure of the guide component, when the mold is closed, the threaded rod drives the guide groove to slide horizontally along the horizontal section of the guide component first, so that the upper mold rotates to be directly above the lower mold, and then descends along the vertical section to complete the mold closing. When the mold is separated, it first rises along the vertical section, and then slides along the horizontal section to drive the upper mold to rotate to a side away from the lower mold. This facilitates the loading and unloading operations of FPC and avoids operational obstacles caused by the upper mold blocking the lower mold area. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one side of the existing tray packaging device of the present invention;

[0019] Figure 2 This is a schematic diagram of the other side of the existing tray packaging device of the present invention;

[0020] Figure 3 This is a schematic diagram of one side of the improved tray packaging device of the present invention;

[0021] Figure 4 This is a schematic diagram of the other side of the improved tray packaging device of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the support frame of the present invention;

[0023] Figure 6 This is a schematic diagram of the overall structure of the driving unit of the present invention;

[0024] Figure 7 This is a schematic diagram of the overall separate structure of the drive unit of the present invention;

[0025] Figure 8 For the present invention Figure 5 Schematic diagram of the structure at point A in the middle.

[0026] The numbers on the map are:

[0027] 1. Upper mold; 2. Pressure head; 3. Lower mold; 4. Slot; 6. Adhesive layer; 7. Mounting cylinder; 8. Lifting slider; 9. Guide groove one; 10. Guide component; 11. Threaded rod; 12. Drive motor; 13. Connecting ear plate; 14. Support frame; 15. Pressure roller; 16. Guide groove two; 17. Movable roller; 18. Limiting post; 19. Movable piece; 20. Magnet one; 21. Connecting frame; 22. Magnet two; 23. T-shaped rod; 24. Spring. Detailed Implementation

[0028] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0029] Example 1

[0030] Reference Figure 3-8 As shown, a precision FPC automatic tray packaging device includes an upper mold 1 with a pressure head 2, a lower mold 3 with slots 4 and mounting cylinders 6 laid in the slot area, and an automatic lifting and closing mechanism.

[0031] The automated lifting and mold closing mechanism includes a lifting slider 7 with an internal cavity, a guide groove 8 that is slidably disposed within the lifting slider 7, and a guide member 9 that is opened on the cylindrical wall of the lifting slider 7. A threaded rod 10 that is fixedly connected to the guide groove 8 is slidably disposed within the guide member 9.

[0032] The guide 9 is shaped like the number 7. The 7-shaped guide 9 includes a vertical section and a horizontal section that are connected to each other. The vertical section extends along the axial direction of the lifting slider 7, and the horizontal section extends along the circumference of the lifting slider 7.

[0033] The threaded rod 10 is provided with connecting ear plates 13 at the end away from the guide groove 8 and at the bottom of the cylinder wall of the lifting slider 7. The two connecting ear plates 13 are respectively detachably connected to the upper mold 1 and the lower mold 3.

[0034] By coordinating the lifting slider 7, guide groove 8, guide component 9, and threaded rod 10, the lifting slider 7 with its internal cavity serves as the supporting base. The sliding cooperation between the 7-shaped guide component 9 and the threaded rod 10 fixed on the guide groove 8 provides precise guidance for the lifting of the guide groove 8, limiting its lateral deviation and ensuring accurate alignment when the upper mold 1 and lower mold 3 are joined and separated. This solves the problem of mold offset caused by gaps and wear of existing positioning pins and ensures that the pressure head 2 is accurately aligned with the slot hole 4.

[0035] Furthermore, relying on the 7-shaped structure of the guide component 9, when the mold is closed, the threaded rod 10 drives the guide groove 8 to slide horizontally along the horizontal section of the guide component 9, so that the upper mold 1 rotates to be directly above the lower mold 3, and then descends along the vertical section to complete the mold closing. When the mold is separated, it first rises along the vertical section, and then slides along the horizontal section to drive the upper mold to rotate to the side away from the lower mold. This facilitates the loading and unloading operations of the FPC and avoids operational obstacles caused by the upper mold blocking the lower mold area.

[0036] Furthermore, refer to Figure 7 As shown, it is worth noting that the automated lifting and mold closing mechanism also includes a drive unit for driving the guide groove 8 to lift.

[0037] The drive unit includes a drive motor 11 vertically arranged in the lifting slider 7, a guide groove 8 threadedly connected to the rod of the drive motor 11, a connecting ear plate 12 installed at the top of the lifting slider 7, and the top of the drive motor 11 rotating through the lifting slider 7 and fixedly connected to the output end of the connecting ear plate 12.

[0038] Through the configuration of the drive unit, the connecting ear plate 12 drives the drive motor 11 to rotate. With the help of its threaded engagement with the guide groove 8, the rotational motion is converted into the linear lifting motion of the guide groove 8. The high precision of the threaded transmission can achieve micron-level control of the lifting distance of the guide groove 8, thereby accurately controlling the mold closing distance and bonding pressure between the upper mold 1 and the lower mold 3, avoiding FPC damage caused by uneven manual mold closing force, and ensuring packaging yield. At the same time, the electric drive completely replaces the manual mold closing and opening operation. With the 7-shaped guide structure of the guide component 9, the entire set of mold closing and opening actions can be completed automatically, greatly improving the production cycle and adapting to the continuous operation requirements of automated production lines. In addition, the speed and torque of the connecting ear plate 12 can be adjusted by the program to adapt to the packaging requirements of FPCs with different thicknesses and flexibility, effectively enhancing the versatility and adaptability of the equipment.

[0039] Example 2

[0040] Furthermore, referring to Figure 3 , Figure 4 and Figure 8 As shown, it is worth noting that it also includes a mold closing effect enhancement mechanism;

[0041] The mold closing effect enhancement mechanism includes two support frames 14 symmetrically distributed on the top surface of the upper mold 1 and a pressure roller 15 horizontally arranged between the two support frames 14. A guide groove 2 16 is provided through the support frame 14. The guide groove 2 16 is composed of vertical grooves and oblique grooves that are interconnected. The pressure roller 15 can slide along the trajectory of the guide groove 2 16.

[0042] The guide groove 16 has a movable rod 17 in its vertical groove, and the guide groove 16 also has an elastic clip for positioning the movable rod 17. The lifting slider 7 has a magnetic unlocking component on its cylinder wall that cooperates with the elastic clip.

[0043] The elastic clip includes a limiting post 18 that abuts against the lower end of the movable roller 17. One end of the limiting post 18 extends out of the support frame 14 and is fixed with a movable piece 19. The movable piece 19 is elastically connected to the pressure roller 15. The other end of the limiting post 18 is provided with a downward-facing slope.

[0044] The magnetic unlocking component includes a connecting frame 21 that is fixed perpendicularly to the wall of the lifting slider 7 and a magnet 22 embedded in one side of the connecting frame 21. The movable piece 19 has a magnetic piece 20 embedded on the side facing away from the limiting post 18, which corresponds to the magnet 22. When the automatic lifting and closing mechanism drives the upper mold 1 to descend to contact the lower mold 3, the magnetic piece 20 moves synchronously with the upper mold 1 to the position corresponding to the magnet 22.

[0045] By improving the mold-closing effect mechanism, the symmetrically distributed support frame 14 and the horizontal pressure roller 15 form a frame support, avoiding unilateral tilting of the upper mold 1 during mold closing and ensuring uniform pressure transmission of the pressure head 2. In the initial state, the limiting post 18 of the elastic clip abuts against the movable roller 17, limiting it in the vertical groove of the guide groove 2 16, achieving precise limiting of the pressing stroke. When the automated lifting and mold-closing mechanism drives the upper mold 1 to descend to contact the lower mold 3, the magnetic piece 20 on the movable piece 19 and the magnet 22 on the connecting frame 21 on the cylinder wall of the lifting slider 7 are precisely aligned and generate a magnetic attraction force, driving the limiting post 18 to move and unlock the movable roller 17. Subsequently, the movable roller 17 slides along the inclined groove of the guide groove 2 16, and the pressure roller 15 performs secondary auxiliary pressing on the FPC, making up for the problem of insufficient local force of a single pressure head. No manual intervention is required throughout the process, and it is seamlessly connected with the automated mold-closing action. This not only solves the defects of uneven pressing and easy wrinkling of FPC in traditional mold-closing, but also improves production efficiency and mold-closing accuracy.

[0046] By utilizing the sloping surface of one end of the limiting post 18, when the pressure roller 15 completes the pressing and resetting sliding, the movable roller 17 slides into the vertical groove of the guide groove 16. At this time, through the sloping surface of one end of the limiting post 18, the movable roller 17 can smoothly enter the vertical groove along the sloping surface and be repositioned by the limiting post 18.

[0047] Furthermore, referring to Figure 8 As shown, it is worth noting that both ends of the movable plate 19 are slidably connected to T-shaped rods 23 that are perpendicularly fixed to the pressure roller 15. Springs 24 are sleeved on the body of the T-shaped rods 23, and the two ends of the springs 24 are respectively fixed to the vertical section of the T-shaped rods 23 and the surface of the movable plate 19.

[0048] The T-shaped rod 23 and the spring 24 form an elastic movable connection structure between the movable plate 19 and the pressure roller 15: the T-shaped rod 23 slides through both ends of the movable plate 19, providing precise guidance for its lateral movement and ensuring that the limiting post 18 moves smoothly to unlock the movable roller 17; under the magnetic attraction force, the spring 24 is compressed and stores potential energy. After the magnetic attraction disappears, its elastic rebound force drives the movable plate 19 and the limiting post 18 to automatically reset, re-limiting the movable roller 17 in the vertical groove of the guide groove 2 16.

[0049] Example 3

[0050] Furthermore, referring to Figure 4 As shown, it is worth noting that T-slots are provided on the inner sides of both connecting ear plates 13, and T-shaped inserts that are compatible with the T-slots are fixed on the corresponding sides of the upper mold 1 and the lower mold 3, respectively.

[0051] By using T-slots and T-slots, a precisely fitting pluggable and detachable connection structure is constructed, which enables rapid assembly and disassembly of the connecting ear plate 13 with the upper mold 1 and the connecting ear plate 13 with the lower mold 3. No additional complex fasteners are required, which greatly shortens the mold change time required for FPC packaging of different specifications and improves the equipment's adaptability to multiple product models.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A precision FPC automatic tray packaging device, comprising an upper mold (1) with a pressure head (2) and a lower mold (3) having slots (4) and mounting cylinders (6) laid in the area of ​​the slots (4), characterized in that, It also includes an automated lifting and mold closing mechanism and a mold closing effect enhancement mechanism; The automated lifting and mold closing mechanism includes a lifting slider (7) with an internal cavity, a guide groove (8) that is slidably disposed in the lifting slider (7), and a guide member (9) opened on the cylinder wall of the lifting slider (7). A threaded rod (10) that is fixedly connected to the guide groove (8) is slidably disposed in the guide member (9). The mold closing effect enhancement mechanism includes two support frames (14) symmetrically distributed on the top surface of the upper mold (1) and a pressure roller (15) horizontally arranged between the two support frames (14). A guide groove (16) is provided through the support frame (14). The guide groove (16) is composed of vertical grooves and oblique grooves that are interconnected. The pressure roller (15) can slide along the guide groove (16) as a trajectory.

2. The precision FPC automatic tray packaging device according to claim 1, characterized in that, The automated lifting and closing mechanism also includes a drive unit for driving the guide groove (8) to lift; The drive unit includes a drive motor (11) vertically disposed in the lifting slider (7), the guide groove (8) is threaded onto the rod of the drive motor (11), the top of the lifting slider (7) is fitted with a connecting ear plate (12), the top of the drive motor (11) rotates out of the lifting slider (7) and is fixedly connected to the output end of the connecting ear plate (12).

3. The precision FPC automatic tray packaging device according to claim 2, characterized in that, The guide groove 2 (16) is provided with a movable rod (17) in the vertical groove, and the guide groove 2 (16) is also provided with an elastic clip for positioning the movable rod (17). The lifting slider (7) is provided with a magnetic unlocking component that cooperates with the elastic clip on the cylinder wall. The elastic clip includes a limiting post (18) that abuts against the lower end of the movable roller (17). One end of the limiting post (18) extends out of the support frame (14) and is fixed with a movable piece (19). The movable piece (19) is elastically connected to the pressure roller (15). The other end of the limiting post (18) is provided with a downward-facing sloping surface.

4. The precision FPC automatic tray packaging device according to claim 3, characterized in that, The magnetic unlocking component includes a connecting frame (21) that is fixed perpendicularly to the cylinder wall of the lifting slider (7) and a second magnet (22) embedded in one side of the connecting frame (21). The movable piece (19) has a magnetic piece (20) embedded on the side facing away from the limiting post (18) that corresponds to the second magnet (22).

5. The precision FPC automatic tray packaging device according to claim 1, characterized in that, The guide (9) is shaped like the number 7. The 7-shaped guide (9) includes a vertical section and a horizontal section that are connected to each other. The vertical section extends along the axial direction of the lifting slider (7), and the horizontal section extends along the circumference of the lifting slider (7).

6. The precision FPC automatic tray packaging device according to claim 1, characterized in that, The threaded rod (10) is provided with a connecting ear plate (13) at the end away from the guide groove (8) and at the bottom of the cylinder wall of the lifting slider (7). The two connecting ear plates (13) are respectively detachably connected to the upper mold (1) and the lower mold (3).

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