FPC reinforcing anti-reverse sticking detection mechanism

Abstract

The utility model relates to detection equipment technical field, concretely relates to a kind of FPC reinforcing anti-repeated pasting detection mechanism, comprising: tool plate and detection structure, the detection structure includes detection rod, detection gap for flexible circuit board and single-layer reinforcing steel sheet are set between the detection rod and tool plate and are equipped with;Gas path channel, it is located in the tool plate, the upper surface of the tool plate is equipped with multiple air holes being connected with the air outlet end of gas path channel, the air inlet end of the gas path channel is connected external air source, the air hole is located on the extension path of detection gap.This application passes into compressed air to the gas path channel in tool plate, makes airflow blow out from evenly arranged air hole, can instantaneously blow flexible circuit board whole from tool plate surface, to form a stable, enough operating space.This non-contact separation mode fundamentally solves the problem of difficult to pinch in background art due to FPC pasting tool plate.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to an FPC reinforcement anti-overlay testing mechanism. Background Technology

[0002] Flexible printed circuit boards (FPCs) often require the attachment of reinforcing steel sheets during manufacturing. However, there is a risk of over-attaching the steel sheets during production, which can lead to excessive product thickness, necessitating testing. Because the steel sheets are thin and difficult to detect with the naked eye, specialized testing equipment is required.

[0003] The existing technology (authorization announcement number: CN222560845U) screens thickness by checking the gap between the detection rod and the tooling plate. However, FPC tends to stick to the tooling plate, making it difficult for operators to pinch and pull it. To address this, the patent proposes an adsorption and lifting solution, which uses a suction cup to adsorb the FPC and then lifts it using a spring mechanism to create an operating space. While this solution recognizes the necessity of separation, its technical approach has inherent flaws, as follows: First, it suffers from poor reliability: the suction cup's adsorption effect depends on a perfect seal on the FPC surface, requiring stringent requirements for surface flatness and cleanliness. Adsorption failure is easily caused by oil, dust, or slight unevenness. Second, it lacks stability: the lifting process relies on a delicate balance between suction and the FPC's gravity; inaccurate control can lead to failure to lift or premature detachment. Finally, it is structurally complex and inefficient: the entire set of mechanical motion components (such as springs and sliders) is not only slow and cumbersome, but also prone to wear and tear and requires maintenance, hindering improvements in detection efficiency. Therefore, a more efficient, stable, and reliable separation technology is urgently needed. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose an FPC reinforcement anti-re-adhesion detection mechanism to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides an FPC reinforcement anti-re-adhesion detection mechanism, comprising: The tooling plate and the detection structure include a detection rod, and a detection gap is provided between the detection rod and the tooling plate for the flexible circuit board and the single-layer reinforcing steel sheet to pass through. The organization also includes: An air passage is provided in the tooling plate. The upper surface of the tooling plate is provided with a plurality of air holes that communicate with the air outlet of the air passage. The air inlet of the air passage is connected to an external air source. The air holes are located on the extension path of the detection gap and are distributed on one side of the detection rod, so that when compressed air is blown out from the air holes, it can blow the flexible circuit board on the tooling plate away from the surface of the tooling plate to form an operating space for hand insertion.

[0006] As a preferred technical solution of this utility model, the air passage includes an air pipe, one end of which is connected to an air collection box and the other end is connected to the external air source. The air collection box is disposed in a groove in the tooling plate, and the air hole is opened on the upper surface of the air collection box.

[0007] As a preferred embodiment of this utility model, the mechanism further includes a control valve for controlling the on / off state of the external air source, wherein the control valve is a foot switch or a manual button.

[0008] As a preferred technical solution of this utility model, the upper surface of the tooling plate is covered with an isolation film, and through holes are opened on the isolation film at the positions corresponding to the air holes.

[0009] As a preferred embodiment of the present invention, the mechanism further includes an auxiliary adsorption structure, which includes at least one auxiliary suction cup disposed on one side of the detection rod. The auxiliary suction cup is used to adsorb the front edge of the flexible circuit board when it is blown up.

[0010] As a preferred embodiment of this invention, the auxiliary suction cup is connected to a vacuum generator.

[0011] As a preferred embodiment of this utility model, the mechanism further includes: A frame, which is used to support and fix the tooling plate; A pair of support plates are symmetrically arranged on the front and rear sides of the frame. A slider is slidably arranged in each support plate. The detection rod is a cylinder with one end forming an end shaft that is rotatably connected to the rotating groove on the surface of the slider. An adjusting screw is provided, with one end connected to the support plate and the other end passing through and engaging with a screw groove on the surface of the slider. By axially rotating the adjusting screw, the slider is driven to synchronously drive the detection rod, thereby adjusting the size of the detection gap between the detection rod and the tooling plate.

[0012] As a preferred embodiment of this utility model, a stop plate is fixedly provided on the inner side of the support plate, and at least two auxiliary suction cups are provided on one side of the stop plate.

[0013] The beneficial effects of this utility model are as follows: By introducing compressed air into the air passage within the tooling plate, the airflow is blown out from evenly arranged air holes, instantly blowing the entire flexible circuit board away from the surface of the tooling plate, thus forming a stable and sufficient operating space. This non-contact separation method fundamentally solves the problem of difficult grasping caused by the FPC being bonded to the tooling plate in the prior art, allowing operators to quickly grasp the board without effort, significantly reducing the time required for a single operation. Since the process is directly driven by the pneumatic system, the separation action is completed in one go. Compared with the original mechanical adsorption lifting structure, it eliminates multiple steps such as pressing down and waiting for rebound, resulting in faster response and a simpler process. Simultaneously, by eliminating complex mechanical moving parts such as springs and slides, it fundamentally avoids downtime and maintenance time caused by component wear and jamming, ensuring excellent equipment continuity. In summary, this application significantly improves the operational efficiency and production cycle of the testing process through the air-blowing separation technology. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the side structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0016] The components in the diagram are labeled as follows: 1. Frame; 2. Tooling plate; 3. First connecting piece; 4. Support plate; 5. Second connecting piece; 6. Fixing block; 7. Adjusting screw; 8. Sliding block; 9. Screw groove; 10. Detection rod; 11. Belt pulley; 12. Belt; 13. Air collection box; 14. Air hole; 15. Air pipe; 16. Mounting hole; 17. Stop plate; 18. Positioning plate; 19. Third connecting piece. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] like Figure 1 As shown, an FPC reinforcement anti-re-attachment detection mechanism includes: a tooling plate 2 and a detection structure. The detection structure includes a detection rod 10, and a detection gap is provided between the detection rod 10 and the tooling plate 2 for the flexible circuit board and the single-layer reinforcing steel sheet to pass through. An air passage is provided in the tooling plate 2. The upper surface of the tooling plate 2 is provided with a plurality of air holes 14 that are connected to the air outlet end of the air passage. The air inlet end of the air passage is connected to an external air source. The air holes 14 are located on the extension path of the detection gap and are distributed on one side of the detection rod 10, so that when compressed air is blown out from the air holes 14, it can blow the flexible circuit board on the tooling plate 2 away from the surface of the tooling plate 2 to form an operating space for hand insertion. The above technical solution solves the problem in the original device where flexible circuit boards are difficult to separate from the fixture plate 2 due to electrostatic or adsorption effects, making it difficult for operators to insert their fingers to grasp them. Specifically, its working principle is as follows: During operation, the operator first passes one end of the flexible circuit board to be tested through the detection gap between the detection rod 10 and the fixture plate 2. Then, the external air source is activated, and compressed air is blown out evenly through the air passage and air hole 14. The airflow acts on the lower surface of the flexible circuit board, generating upward pressure, thereby smoothly blowing the flexible circuit board, which was originally attached to the fixture plate 2, away from its surface, forming a clear operating space. Through non-contact air blowing, rapid and non-destructive separation of the flexible circuit board is achieved, significantly improving operational convenience and production efficiency, while avoiding scratches or contamination to the board surface that may be caused by mechanical contact.

[0020] like Figure 3 As shown, in this embodiment, the air passage includes an air pipe 15, one end of which is connected to the air collection box 13 and the other end is connected to an external air source. The air collection box 13 is located in the groove of the tooling plate 2, and the air holes 14 are densely opened on the upper surface of the air collection box 13. The above technical solution solves the problem of uneven airflow and ineffective lifting of flexible circuit boards in some areas that may result from a single air path. Specifically, its working principle is as follows: Compressed air supplied by an external air source is delivered to the air collection box 13 via the air pipe 15. The air collection box 13 acts as a pressure-stabilizing chamber, distributing the airflow to multiple air holes 14 on its surface and blowing it out. During operation, the airflow is buffered and homogenized within the air collection box 13, ensuring that the air pressure blown out from all air holes 14 is consistent. This ensures that the flexible circuit board can be lifted as a whole and stably, avoiding local warping or jamming, and making the formation of the operating space more reliable and consistent.

[0021] Furthermore, in this embodiment, the mechanism also includes a control valve for controlling the on / off state of the external air source, which is a foot switch or a manual button; The above technical solution eliminates the inconvenience of needing to use both hands to operate the air valve during operation. Specifically, its working principle is as follows: while holding the flexible circuit board with both hands for insertion, the operator controls the airflow by stepping on a foot switch or manually triggering a button. When the flexible circuit board needs to be separated, the switch is triggered, opening the airflow and initiating air blowing; when the circuit board is pinched, releasing the switch disconnects the airflow. This greatly frees up the operator's hands, making the entire testing process smoother and more seamless, further improving work efficiency and ergonomics.

[0022] Furthermore, in this embodiment, an isolation film is laid on the upper surface of the tooling plate 2, and through holes are opened on the isolation film at the positions corresponding to the air holes 14. The above technical solution solves the problem of scratches and wear caused by direct contact and friction between the flexible circuit board and the rigid tooling plate 2. Specifically, its working principle is as follows: an isolation film is covered on the surface of the tooling plate 2, serving as an isolation layer between the flexible circuit board and the tooling plate 2. Through holes on the film ensure that the air blowing function of the air vents 14 is not affected. During operation, the isolation film directly bears the sliding friction of the flexible circuit board. This effectively protects the surface quality of the expensive flexible circuit board product, extends the service life of the tooling plate 2, and, as a consumable part, the isolation film is inexpensive, easy to replace, and reduces equipment maintenance costs.

[0023] Furthermore, in this embodiment, the mechanism also includes an auxiliary adsorption structure, which includes at least one auxiliary suction cup disposed on one side of the detection rod 10. The auxiliary suction cup is used to adsorb the front edge of the flexible circuit board when it is blown up. The auxiliary suction cup is connected to a vacuum generator, which generates a vacuum negative pressure by compressed air to provide a stable and adjustable adsorption force for the auxiliary suction cup. Through the same air source or independent control, the blowing and vacuum adsorption can be started synchronously or sequentially. The above technical solution solves the problem that when relying solely on air blowing, the front end of the flexible circuit board is not fixed in position, may drift with the wind, or sag due to the softness of the board, requiring the operator to still search for and grasp it. Specifically, its working principle is as follows: when air is blown through the air hole 14 to lift the entire flexible circuit board, the auxiliary suction cup located above its front edge simultaneously generates suction, accurately adhering to the front end of the blown-up flexible circuit board. During operation, blowing and adsorption occur simultaneously, and the adsorption force creates an upward lifting and positioning effect on the front end of the flexible circuit board. This stably "hands" the front end of the flexible circuit board to the operator's hand, achieving a synergistic effect of "air blowing lifting and adsorption positioning," making the grasping action more precise and faster.

[0024] like Figure 4 As shown, in this embodiment, the mechanism further includes: a frame 1, which is used to support and fix the tooling plate 2; a pair of support plates 4, symmetrically arranged on the front and rear sides of the frame 1, each support plate 4 having a slider 8 slidably disposed therein; a detection rod 10 is a cylinder, one end of which forms an end shaft rotatably connected to the rotating groove on the surface of the slider 8; an adjusting screw 7, one end of which is rotatably connected to the support plate 4, and the other end passes through and cooperates with the screw groove 9 opened on the surface of the slider 8. By axially rotating the adjusting screw 7, the slider 8 synchronously drives the detection rod 10, thereby adjusting the size of the detection gap between the detection rod 10 and the tooling plate 2. The above technical solution solves the problem of poor applicability of fixed gap detection devices and their inability to adapt to changes in product thickness. Specifically, its working principle is as follows: When it is necessary to detect flexible circuit boards of different thicknesses combined with reinforcing steel sheets, the operator uses a tool to rotate the adjusting screw 7. The rotation of the screw is converted into linear motion of the slider 8 within the support plate 4, thereby driving the detection rod 10 to move closer to or further away from the tooling plate 2, precisely adjusting the height of the detection gap. The end shaft of the detection rod 10 can rotate within the rotating groove, ensuring rolling friction when it contacts the flexible circuit board. This achieves precise, stepless adjustment of the detection gap, enabling one device to be compatible with multiple products, greatly improving the versatility and utilization of the equipment. At the same time, the rolling friction structure reduces wear on the flexible circuit board.

[0025] like Figure 4 As shown, in this embodiment, a stop plate 17 is fixedly provided on the inner side of the support plate 4, and at least two auxiliary suction cups are provided on one side of the stop plate 17. The above technical solution solves the problems of unstable suspended installation of auxiliary suction cups and the potential failure of single-point adsorption due to circuit board warping. Specifically, its working principle is as follows: A stop plate 17 is fixedly installed on the support plate 4, providing a stable mounting base for the auxiliary suction cups. Two or more auxiliary suction cups 91 are arranged side-by-side on the side of the stop plate 17 facing the operator, ensuring reliable adsorption of the front ends of flexible circuit boards of different widths. During operation, when the flexible circuit board is blown up and moves forward, its front end contacts the auxiliary suction cup 91 in front of the stop plate 17 and is adsorbed. The stop plate 17 enhances structural rigidity and provides a more balanced and reliable gripping force through multi-point adsorption, further optimizing the "adsorption positioning" effect and ensuring consistency in each operation.

[0026] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0027] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An FPC reinforcement anti-re-lamination testing mechanism, comprising: The tooling plate (2) and the detection structure include a detection rod (10), and a detection gap is provided between the detection rod (10) and the tooling plate (2) for the flexible circuit board and the single-layer reinforcing steel sheet to pass through. The mechanism is characterized in that it further includes: An air passage is provided in the tooling plate (2). The upper surface of the tooling plate (2) is provided with a plurality of air holes (14) that are connected to the air outlet end of the air passage. The air inlet end of the air passage is connected to an external air source. The air holes (14) are located on the extension path of the detection gap and are distributed on one side of the detection rod (10). When compressed air is blown out from the air holes (14), it can blow the flexible circuit board on the tooling plate (2) away from the surface of the tooling plate (2) to form an operating space for hand insertion.

2. The FPC reinforcement anti-overlay detection mechanism according to claim 1, characterized in that: The air passage includes an air pipe (15), one end of which is connected to an air collection box (13) and the other end is connected to the external air source. The air collection box (13) is located in the groove of the tooling plate (2), and the air hole (14) is opened on the upper surface of the air collection box (13).

3. The FPC reinforcement anti-overlay detection mechanism according to claim 1, characterized in that: The mechanism also includes a control valve for controlling the on / off of an external air source, which is a foot switch or a manual button.

4. The FPC reinforcement anti-overlay detection mechanism according to claim 1, characterized in that: The upper surface of the tooling plate (2) is covered with an isolation film, and through holes are opened on the isolation film at the positions corresponding to the air holes (14).

5. The FPC reinforcement anti-overlay detection mechanism according to claim 2, characterized in that: The mechanism also includes an auxiliary adsorption structure, which includes at least one auxiliary suction cup disposed on one side of the detection rod (10), the auxiliary suction cup being used to adsorb the front edge of the flexible circuit board when it is blown up.

6. The FPC reinforcement anti-overlay detection mechanism according to claim 5, characterized in that: The auxiliary suction cup is connected to a vacuum generator.

7. The FPC reinforcement anti-overlay detection mechanism according to claim 5, characterized in that: The organization also includes: A frame (1) is used to support and fix the tooling plate (2); A pair of support plates (4) are symmetrically arranged on the front and rear sides of the frame (1). A slider (8) is slidably arranged in each support plate (4). The detection rod (10) is a cylinder, and one end of it forms an end shaft that is rotatably connected to the rotating groove on the surface of the slider (8). The adjusting screw (7) is connected to the support plate (4) at one end and passes through the screw groove (9) on the surface of the slider (8) and cooperates with it. By axially rotating the adjusting screw (7), the slider (8) is driven to synchronously drive the detection rod (10), thereby adjusting the size of the detection gap between the detection rod (10) and the tooling plate (2).

8. The FPC reinforcement anti-overlay detection mechanism according to claim 7, characterized in that: A stop plate (17) is fixedly provided on the inner side of the support plate (4), and the auxiliary suction cups are at least two and are provided on one side of the stop plate (17).

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