Anti-pollution traction device for FPC process

Abstract

The utility model relates to a kind of anti-pollution traction device for FPC process, solve the problem of quality deficiency and low efficiency of traditional adhesive tape fixed mode in FPC processing, the device is replaced by clamping plate to realize no glue operation, eliminate the residual problem of dry film scrap on the surface of adhesive tape, prevent the phenomenon of water stain through the edge of adhesive tape reverse infiltration, on the side of clamping plate, it is equipped with clamping structure, this structure can evenly disperse clamping pressure, while ensuring the fixation of FPC, effectively avoid the material damage that traditional clamping mode can cause, boss and limit guide plate integrated design, improve line change efficiency, reduce the error rate of operation, the device can reduce process pollution source, improve product yield and save manpower cost, provide reliable technical support for the large-scale, high-quality production of FPC.

Description

Technical Field

[0001] This utility model relates to the field of FPC process technology, specifically a pollution prevention traction device for FPC process. Background Technology

[0002] In the manufacturing process of FPC, the clamping and fixing methods play a crucial role in the stability of product quality. Currently, the traditional fixing method mainly relies on adhesive tape. Although this method is simple to operate, it has many obvious problems, as follows: During etching and electroplating processes, the corrosive effect of chemical solutions can cause the tape to lose its adhesion or even detach. This not only causes the guide plate to shift and affect the processing accuracy, but the detached tape residue can also contaminate the copper surface, forming blocky foreign objects, and in severe cases, causing copper exposure defects. Dry film debris tends to accumulate on the edges of the tape. These contaminants may stick back to the FPC surface, causing short circuits or abnormal signal transmission. During the horizontal line processing, gaps caused by uneven tape adhesion can allow water stains to seep in and be difficult to dry completely. Residual moisture can lead to oxidation and discoloration of the copper surface, resulting in discoloration defects. The adhesive force of the tape will decrease over time, resulting in unstable clamping force and affecting process consistency. Frequent tape replacement increases labor costs and downtime. Existing mechanical clamping devices are mostly designed for rigid PCBs. When directly applied to FPCs, they are prone to material deformation or damage due to uneven clamping force distribution, which can easily lead to defects such as indentations and creases.

[0003] With the development of FPC technology, traditional tape fixing methods can no longer meet the requirements of high-precision processing. There is an urgent need to develop a guide plate fixing device that can avoid tape contamination, prevent water penetration, provide stable clamping force, and not damage flexible materials, so as to improve the reliability of FPC process and product yield. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-contamination traction device for FPC manufacturing processes, which aims to solve the problems of delamination, residual adhesive contamination, unstable clamping, clamping deformation, and water seepage that exist in the prior art when using tape to fix the guide plate.

[0005] To achieve the above objectives, this utility model provides the following device: a contamination-preventing traction device for FPC manufacturing processes, comprising a clamping plate and a boss: The clamping plate has a clamping structure on at least one side wall. The clamping structure has a clamping part one and a clamping part two with different lengths. As a clamping component that directly contacts the FPC, the clamping plate achieves stable clamping of the FPC by utilizing the included angle α formed by the relative displacement of the clamping part one and the clamping part two.

[0006] The boss has a slot that mates with the clamping plate, allowing the clamping part one and the clamping part two to move relative to each other through the slot.

[0007] During clamping, clamping part one extends at least partially into the slot, and clamping part two is located outside the slot. By bending the clamping plate, clamping part one and clamping part two are displaced relative to each other to form an angle α for clamping the FPC.

[0008] Clamping part one and clamping part two are evenly arranged on the edge of the clamping plate. When clamping, clamping part one is located below the FPC and clamping part two is located above the FPC to avoid damage caused by excessive local stress, while ensuring clamping stability.

[0009] The first clamping part has an "I" shaped structure, and the second clamping part has an "L" shaped structure. The "I" shaped structure is simple and rigid, and can accurately fit the slot of the limiting guide plate. The horizontal part of the "L" shaped structure can cooperate with the limiting guide plate to form a ring-shaped clamping of the FPC. At the same time, the "L" shaped structure can increase the contact area with the edge of the FPC, improve the clamping firmness, and prevent the FPC from slipping during traction.

[0010] The edge of the clamping plate has at least one non-closed annular groove along the axis L, forming a clamping part two. The peninsula-shaped structure formed by the non-closed annular groove forms a clamping part one. The clamping part two can reduce local stress and prevent the FPC board from wrinkling or breaking. The structure of the clamping part one makes it easier to insert into the slot, and also provides a more complete and continuous clamping surface for clamping the FPC, improving clamping reliability and preventing the FPC from falling off during traction. In addition, the structure of the continuous clamping surface is not easily damaged in daily use.

[0011] Clamping structures are provided on both long sides of the clamping plate. The simultaneous provision of clamping structures on both sides allows the use of the other clamping structure if the clamping structure on one side is damaged, thereby improving the utilization rate of materials.

[0012] A limiting guide plate is installed on the side of the boss. A slot is provided between one end of the limiting guide plate and the top of the boss. The slot can limit the clamping part of the clamping plate and guide the clamping part one and clamping part two to separate, so that the clamping plate and the boss can cooperate with each other and improve the overall stability of the device.

[0013] The top of the boss is provided with a boss, and the side of the boss relative to the slot is inclined. The bottom end of the inclined surface coincides with the slot, so that when the clamping plate approaches and extends into the slot, it can be guided by the inclined surface to make the clamping part extend into the slot more smoothly. At the same time, the boss can also limit the clamping plate to prevent the clamping plate from being damaged due to excessive bending.

[0014] The limiting guide plate is inclined, allowing it to work with other limiting guide plates and clamping plates. This enables the clamping plate to be adjusted at a more reasonable angle on one side of the inclined surface. The inclined surface facilitates the insertion of the FPC into the clamping structure, ensuring a better fit between the clamping parts one and two, thus improving the clamping adaptability and stability. The bottom of the boss is equipped with a platform to provide a flat and stable bearing surface for the FPC, which facilitates the positioning and placement of the FPC before clamping. This ensures that the FPC is in a regular state before being clamped and pulled, reducing the risk of clamping deviation or contamination caused by unstable placement. At the same time, the platform provides initial reference support for the entire pulling process.

[0015] Compared with the prior art, the beneficial effects of this utility model are: Solving pollution problems and improving product quality: By replacing traditional tape with a clamp, problems such as tape delamination, residual adhesive, and dry film debris sticking to the copper surface are avoided. Defects such as blocky foreign objects in the adhesive area and poor copper plating are reduced. At the same time, the problems of water stains seeping in and incomplete drying caused by excessive tape accumulation and uneven bonding are eliminated.

[0016] Stable clamping and protection of FPC materials: The clamping structure of the clamping plate can disperse the clamping force, ensuring clamping stability while avoiding problems such as excessive pressure and stress concentration on flexible FPC materials caused by traditional mechanical clamping, thus reducing the risk of FPC deformation or damage.

[0017] Improved production efficiency: The integrated design of the boss and the limiting guide plate enables precise alignment, while improving loading and line changing efficiency, reducing operational error rate, and shortening the production cycle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the anti-pollution traction device of this utility model used in FPC manufacturing process; Figure 2 This is a schematic diagram of the clamping structure of this utility model; Figure 3 This is a schematic diagram of the structure of part A of the clamping platform of this utility model; Figure 4 This is a side view of the clamping platform of this utility model when the clamping plate is inserted; Figure 5 This is a schematic diagram of the clamping plate structure of one embodiment of the present utility model; Figure 6 This is a schematic diagram of the clamping plate structure of another embodiment of the present invention.

[0019] In the figure, 1 is a clamping plate; 11 is a clamping part two; 12 is a clamping part one; 2 is a clamping platform; 21 is a boss; 22 is an inclined surface; 23 is a boss; 24 is a limiting guide plate; 25 is a platform; and 26 is a slot. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: This embodiment provides a contamination prevention traction device for FPC manufacturing processes, mainly including the following components: like Figure 5 As shown, clamping plate 1: clamping plate 1 is a rectangular structure made of elastic and corrosion-resistant material. On one side of the long side of the rectangle, there are evenly distributed clamping structures. The clamping structures include an "I"-shaped clamping part 12 and an "L"-shaped clamping part 21. The rectangular structure makes it easier to grip. The elastic material can ensure that there is relative displacement between clamping part 12 and clamping part 21 and generate clamping force. The corrosion-resistant material can ensure that it can resist chemical erosion during etching, cleaning and other processes in the FPC manufacturing process and prevent contamination of the FPC.

[0022] The structure of the "I"-shaped clamping part 12 allows for smoother insertion into the corresponding slot 26. This improves operational efficiency during assembly, and the symmetrical structure ensures uniform force distribution after insertion, preventing damage to the clamping part itself due to localized stress concentration.

[0023] Compared to a single straight structure, the L-shaped clamping part 21 has a more extensive contact area with the edge of the FPC due to its bending structure. This structure not only distributes the clamping force over a wider area, reducing the risk of wrinkles or breakage of the FPC edge due to excessive local stress, but also enhances the constraint effect on the FPC through the limiting effect of the lateral part, reducing its displacement or loosening during use and improving the overall clamping firmness.

[0024] Furthermore, the clamping structure is not limited to combinations of "I" and "L" shapes. For example, the clamping part 2 11 can adopt a "T" shaped component, which can increase the contact area with the FPC through the horizontal part of the upper part, thereby enhancing the clamping effect on the FPC; the clamping part 2 11 can also be a "Y" shaped structure, whose bifurcated structure can realize the limiting function, further adapting to the clamping needs of FPCs of different thicknesses or materials.

[0025] The length of clamping part 12 is greater than that of clamping part 21, and the structure of clamping part 21 includes both the main body and the part that disperses the clamping force, which can achieve the clamping function.

[0026] like Figures 2-3As shown, clamping platform 2 includes platform 25, boss 21, boss 23 and limiting guide plate 24.

[0027] The bottom of the boss 21 is provided with a platform 25, on which an FPC board can be placed, thereby improving the overall stability of the device.

[0028] The side of the boss 21 is provided with a limiting guide plate 24. The limiting guide plate 24 is inclined. Between the top of the limiting guide plate 24 and the top of the boss 21, there is a slot 26 that matches the thickness of the clamping part 12. The inclined setting of the limiting guide plate 24 facilitates the FPC to extend into the clamping structure. The slot 26 provides a force fulcrum to cause relative displacement between the clamping part 12 and the clamping part 2 11.

[0029] The top of the boss 21 is provided with a boss 23, and the side of the boss 23 is an inclined surface 22. The edge of the slot 26 coincides with the bottom of the inclined surface 22. The inclined surface 22 has a limiting and guiding function for the clamping plate 1, so that the clamping plate 1 can be better inserted into the slot 26 through the inclined surface 22. The inclined surface 22 can also prevent the clamping plate 1 from being damaged due to excessive bending.

[0030] Insert the clamping part 12 of the clamping plate 1 into the slot 26 in the vertical direction. Utilize the thickness adaptation characteristics of the slot 26 and the clamping part 12 to achieve precise alignment and simultaneously complete the horizontal calibration.

[0031] like Figure 4 As shown, vertical pressure is applied to clamping plate 1, and clamping part 21 bends outward to form an angle α with limiting guide plate 24. The angle α increases with increasing pressure.

[0032] like Figure 1 As shown, the FPC is laid flat on the platform 25 and guided by the limiting guide plate 24 to ensure that the edge of the FPC to be clamped is precisely aligned with the clamping structure of the clamping plate 1. At this time, the edge of the FPC to be clamped must completely correspond to the distribution range of the clamping part 12 and the clamping part 21. Then, the edge of the FPC to be clamped is moved between the clamping part 12 and the clamping part 21, and then the pressure on the clamping plate 1 is released. The clamping part 21 generates continuous pressure through elastic deformation to evenly wrap the edge of the FPC within the included angle α. The structure of the clamping part 12 and the clamping part 21 disperses the clamping force to multiple contact points, avoiding FPC wrinkles or breakage caused by local stress concentration, and improving the clamping effect.

[0033] The inclined surface 22 on the boss 23 forms a rigid limiting fit with the clamping plate 1. The inclined surface 22 provides a reverse support force to counteract the lateral torque during the clamping process and prevent the clamping part 12 from breaking due to excessive bending of the clamping plate 1.

[0034] This structure not only satisfies the requirements of high efficiency when clamping FPC, but also ensures positional accuracy during the clamping process through the limiting characteristics of the structure.

[0035] Example 2: As Figure 6 As shown, this embodiment modifies the clamping structure based on embodiment 1. By opening multiple non-closed annular grooves along the axis L on the clamping plate 1, the edge of the clamping plate 1 has a complete and continuous clamping surface. The peninsula-shaped structure formed by the non-closed annular grooves is the clamping part 12. The clamping structure is provided on both sides of the clamping plate 1. In use, by extending the clamping part 12 into the slot 26, the clamping part 11 is bent so that the clamping part 21 forms an angle α with the limiting guide plate 24.

[0036] In this embodiment, the clamping structure has higher overall strength and stronger resistance to deformation, which can extend the service life of the device. The complete and continuous clamping surface and the slot 26 make it easier to control the accuracy and reduce the assembly difficulty. The peninsula-shaped structure makes the clamping force distribution more uniform, which can reduce the uneven force on the FPC during traction and reduce the risk of FPC deformation caused by stress concentration. The clamping structure of this embodiment is more convenient to grip and can be set on both sides of the clamping plate 1 at the same time, which improves the utilization rate of materials.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An anti-pollution pulling device for FPC process, characterized in that, Includes plywood and boss: The clamping plate has a clamping structure on at least one side wall, and the clamping structure has a clamping part one and a clamping part two of different lengths; The boss has a slot that mates with the clamping plate; The clamping part one extends at least partially into the slot, and the clamping part two is located outside the slot. When clamping, the clamping part one and the clamping part two generate relative displacement to form an angle α for clamping the FPC.

2. The anti-pollution traction device for FPC process according to claim 1, characterized in that: The clamping part one and clamping part two are evenly arranged on the edge of the clamping plate. When clamping, clamping part one is located below the FPC and clamping part two is located above the FPC.

3. The anti-pollution traction device for FPC process according to claim 1, characterized in that: The first clamping part has an "I" shaped structure, and the second clamping part has an "L" shaped structure.

4. The anti-pollution pulling device for FPC process according to claim 1, characterized in that: The edge of the clamping plate is provided with at least one non-closed annular groove along the axis L, forming a clamping part two on the edge of the clamping plate, and the peninsula-shaped structure formed by the non-closed annular groove forms a clamping part one.

5. A pollution-prevention traction device for FPC processes according to claim 4, characterized in that: Clamping structures are provided on the long sides of both sides of the clamping plate.

6. The anti-pollution pulling device for FPC process according to claim 1, characterized in that: A limiting guide plate is installed on the side of the boss, and a slot is provided between the top of the limiting guide plate and the top of the boss.

7. A pollution-prevention traction device for FPC processes according to claim 1, characterized in that: The top of the boss is provided with a boss seat, and the side of the boss seat relative to the slot is inclined, with the bottom end of the inclined surface coinciding with the edge of the slot.

8. A pollution-prevention traction device for FPC processes according to claim 6, characterized in that: The limiting guide plate is set at an angle.

9. A contamination prevention traction device for FPC processes according to any one of claims 1-8, characterized in that: The bottom of the boss is provided with a platform.

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