Anti-misjudgment plate-passing induction system and auxiliary induction jig thereof

Abstract

The utility model discloses an anti-misjudgment plate-passing induction system and an auxiliary induction jig thereof, the anti-misjudgment plate-passing induction system comprises a plate-passing inductor and the auxiliary induction jig, the auxiliary induction jig comprises a fixing frame, an elastic reflector is installed on the fixing frame, and the elastic reflector protrudes out of the outer side of the fixing frame. The surface mounting jig is in contact with the elastic light reflecting sheet before passing through the plate passing sensor, the surface mounting jig can bend the elastic light reflecting sheet so that the elastic light reflecting sheet can block signals sent by the plate passing sensor, and due to the light reflecting characteristic of the elastic light reflecting sheet, the signals can be reflected to the receiving end of the plate passing sensor. Therefore, the problem of misjudgment caused by the fact that the signal penetrates through the hollow area on the patch jig or is absorbed by the black area is avoided, the patch jig can be detected by a machine, and the patch jig is prevented from being damaged by the machine. Therefore, by applying the misjudgment-preventing plate-passing induction system with the auxiliary induction jig, the smooth proceeding of the production process is ensured, the damage and the scrapping of the patch jig are avoided, and the reliability and the production efficiency of a production line are improved.

Description

Technical Field

[0001] This utility model belongs to the field of material incoming inspection technology, and in particular relates to a false judgment overpass sensing system and its auxiliary sensing fixture. Background Technology

[0002] When transferring pre-mounted circuit boards, especially flexible circuit boards, to the next processing machine, a surface mount fixture (SMT) is typically used as a carrier. To avoid obstructing components on the back of the circuit board, the SMT usually features a cutout design. However, when the SMT enters the machine, the signal from the machine's board-passing sensor passes directly through this cutout area, preventing the sensor from receiving a feedback signal. In this case, the machine (such as a printer or buffer press) may mistakenly assume no SMT is passing, leading to a misjudgment by the board-passing sensor. The machine will then operate according to the program set for when no SMT is passing, potentially damaging or even rendering the SMT unusable. Furthermore, some SMTs made of special materials or with black areas can absorb the signal from the board-passing sensor, also causing misjudgment. Utility Model Content

[0003] The purpose of this utility model is to provide a false judgment overboard sensing system and its auxiliary sensing fixture, which can prevent false judgment by the overboard sensor and avoid damage to the patch fixture by the machine.

[0004] This utility model is implemented as follows: an auxiliary sensing fixture for an anti-misjudgment overpass sensing system includes a fixed frame, on which an elastic reflector is installed, the elastic reflector protruding out of the outside of the fixed frame.

[0005] Furthermore, the mounting bracket is provided with a slot, and the elastic reflector is inserted into the slot.

[0006] Furthermore, the elastic reflective sheet is a smooth-surfaced strip.

[0007] Furthermore, the mounting bracket is provided with perforated or hollowed-out areas for weight reduction.

[0008] Furthermore, the auxiliary sensing fixture also includes a clamp plate, which is detachably fixed to the fixing frame, and a gap is reserved between the clamp plate and the fixing frame to form the slot.

[0009] Furthermore, the clamp is fastened to the fixing frame by adjusting screws, and the width of the slot can be adjusted by turning the adjusting screws.

[0010] Furthermore, the top of the clamping plate forms a step higher than the top surface of the fixing frame.

[0011] Furthermore, the mounting bracket is provided with mounting holes, and the mounting bracket is fixed to the machine by inserting screws into the mounting holes.

[0012] To achieve the above objectives, this utility model also provides a false-judgment overpass sensing system, including an overpass sensor and the aforementioned auxiliary sensing fixture. The elastic reflector, when bent, can block the signal emitted by the transmitting end of the overpass sensor, causing the signal to be reflected to the receiving end of the overpass sensor.

[0013] Furthermore, the plate sensor is a specular reflective photoelectric sensor.

[0014] Compared with the prior art, the advantages of this utility model are as follows:

[0015] The auxiliary sensing fixture provided by this utility model includes a fixed frame with an elastic reflector mounted on it, the reflector protruding outward from the fixed frame. Before passing the board sensor, the mounting fixture contacts the elastic reflector. The mounting fixture can bend the elastic reflector, blocking the signal emitted by the board sensor. Due to the reflective properties of the elastic reflector, the signal is reflected back to the receiving end of the board sensor, thus avoiding the problem of the signal passing through the cutout area on the mounting fixture or being absorbed by the black area, which could lead to misjudgment by the board sensor. This allows the machine to detect the mounting fixture and prevents damage to it from vertical movement. Therefore, the application of this anti-misjudgment board sensing system with the auxiliary sensing fixture ensures the smooth operation of the production process, avoids damage and scrap of the mounting fixture, and improves the reliability and efficiency of the production line. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an auxiliary sensing fixture provided in this embodiment;

[0017] Figure 2 This is a schematic diagram of the auxiliary sensing fixture provided in this embodiment blocking the signal emitted by the overpass sensor and reflecting the signal to the overpass sensor receiver.

[0018] Figure 3 This is a schematic diagram of the mounting bracket provided in this embodiment being fixed to the machine by inserting screws into the mounting holes;

[0019] Figure 4 This is a schematic diagram of an L-shaped fixing frame and a plate sensor installed with it, provided in this embodiment.

[0020] Figure 5 This is a schematic diagram of a U-shaped fixing frame and a plate sensor installed with it, provided in this embodiment.

[0021] Figure 6This is a schematic diagram of a board-passing sensing system for preventing misjudgment provided in this embodiment.

[0022] Marked in the image:

[0023] 10-Auxiliary sensing fixture; 11-Fixed bracket; 12-Elastic reflector; 13-Slot; 14-Through hole; 15-Mounting hole; 16-Fixing screw; 17-Clamping plate; 18-Adjusting screw; 20-Pass-through sensor; 30-Patch fixture. Detailed Implementation

[0024] 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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] See Figure 1 This embodiment shows an auxiliary sensing fixture 10 for an anti-misjudgment overpass sensing system, including a fixing frame 11, on which an elastic reflector 12 is mounted, the elastic reflector 12 protruding out of the outside of the fixing frame 11.

[0027] Please refer to the following: Figure 2With this design, the mounting fixture 30 contacts the elastic reflector 12 before passing the board sensor 20. Due to the elastic properties of the elastic reflector 12, it can bend when subjected to external force. The bent elastic reflector can block the signal emitted by the board sensor. Due to the reflective properties of the elastic reflector 12, the signal can be reflected to the receiving end of the board sensor 20, avoiding the problem of the board sensor 20 misjudging the signal because the signal passes through the cutout area on the mounting fixture 20 or is absorbed by the black area. This allows the machine to detect the mounting fixture 30 and avoids damage to the mounting fixture 30 when the machine moves up and down.

[0028] Specifically, the elastic reflector 12 in this embodiment can be made of various materials, such as metal foil, plastic film, or other materials with smooth surfaces. These materials not only have good reflective properties but also possess a certain degree of elasticity, enabling them to return to their original shape when subjected to external force. Furthermore, the thickness and size of the elastic reflector 12 can be adjusted according to specific application requirements to adapt to different usage environments and conditions. As a preferred embodiment, the elastic reflector 12 is a smooth-surfaced strip, further enhancing the reflective effect. Moreover, the strip can be made from recycled materials, making it readily available and cost-effective.

[0029] Specifically, the mounting bracket 11 is provided with a slot 13, in which the elastic reflector 12 is inserted. The slot 13 ensures the stability of the elastic reflector 12, preventing it from falling off or shifting due to external forces. The slot 13 can be formed on the mounting bracket by machining or molding. The width and depth of the slot 13 need to be designed according to the size and material properties of the elastic reflector 12 to ensure that the elastic reflector 12 can be firmly inserted and remain stable. As a preferred embodiment, the inner wall of the slot 13 can be provided with a certain coefficient of friction to increase the fixing effect on the elastic reflector 12.

[0030] Furthermore, the mounting bracket 11 is provided with perforations 14 or hollowed-out areas for weight reduction, which can reduce the weight of the auxiliary sensing fixture, making it easier to install and operate, and saving material costs in the production of the mounting bracket 11. The mounting bracket 11 can use perforations 14 or hollowed-out areas of different shapes, such as circular, square, or other geometric shapes. The size and number of these perforations 14 or hollowed-out areas can be designed according to actual needs to ensure that the structural strength and stability of the mounting bracket 11 are not affected while reducing weight. As a preferred embodiment, the perforations 14 or hollowed-out areas on the mounting bracket 11 can be achieved by laser cutting, stamping, or other processing techniques, thereby ensuring processing accuracy and efficiency.

[0031] Further, see Figure 3The mounting bracket 11 is also provided with mounting holes 15, and the mounting bracket 11 is fixed to the machine by inserting fixing screws 16 into the mounting holes 15. Designed to accommodate different brands, dimensions, and installation locations of the overpass sensors for various machines, in practical applications, the mounting bracket 11 can be flat (e.g., ...). Figure 1 As shown), L-shaped (as shown) Figure 4 (as shown) and U-shaped (as shown) Figure 5 As shown in the figure, the shape of the auxiliary sensing fixture is adapted to different installation requirements through the multi-type structural design of the fixing frame 11, thereby improving the applicability of the auxiliary sensing fixture and enhancing its stability and reliability in different working environments.

[0032] For further information, please refer to [link / reference]. Figure 4 The auxiliary sensing fixture in this embodiment also includes a clamping plate 17, which is detachably fixed to the mounting frame 11. A gap is provided between the clamping plate 17 and the mounting frame 11 to form the aforementioned slot 13. The clamping plate 17 is fastened to the mounting frame 11 by adjusting screws 18. By turning the adjusting screws 18, the width of the slot 13 can be adjusted to accommodate elastic reflectors 12 of different thicknesses, and to ensure that the elastic reflectors 12 can be more securely inserted into the slot 13, preventing loosening or falling off during use. Furthermore, as... Figure 5 As shown, the top of the clamping plate 17 is higher than the top surface of the fixing frame 11 to form a step. As a result, after the elastic reflector 12 is bent to a certain extent, it will abut against the top edge of the clamping plate 17. When the patch fixture 30 leaves the elastic reflector 12, the top of the clamping plate 17 will generate a reaction force on the elastic reflector 12 to help the elastic reflector 12 quickly return to its original shape.

[0033] Please see Figure 6 This embodiment also provides a false alarm board-passing sensing system, including a board-passing sensor 20 and an auxiliary sensing fixture 10. The elastic reflector 12 can block the signal emitted by the transmitting end of the board-passing sensor 20 after being bent, so that the signal is reflected to the receiving end of the board-passing sensor 20.

[0034] In this embodiment, the over-plate sensor 20 employs a mirror-reflective photoelectric sensor. Specifically, the mirror-reflective photoelectric sensor emits a beam of light, which is reflected back to the receiver when it encounters the elastic reflector 12, thereby achieving the detection function. This design effectively avoids the problem of light penetrating the cutout area or being absorbed by the black area, ensuring that the machine can accurately detect the presence of the mounting fixture 30 and preventing misjudgments.

[0035] It is evident that the application of the anti-misjudgment board sensing system with the auxiliary sensing fixture 10 ensures the smooth operation of the production process, avoids damage and scrap of the patch fixture 30, and improves the reliability and production efficiency of the production line.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary sensing jig of a false board detection induction system, characterized in that, The fixing frame is provided with a slot, and the elastic reflective sheet is inserted into the slot. The fixing frame is provided with a slot, and the elastic reflective sheet is inserted into the slot. The clamping plate is detachably fixed on the fixing frame, and a gap is reserved between the clamping plate and the fixing frame to form the slot. The elastic reflective sheet is a smooth surface material belt.

2. The assistive inductive fixture of claim 1, wherein, The fixing frame is provided with a perforated or hollow area for weight reduction.

3. The assistive inductive fixture of claim 1, wherein, The clamping plate is fastened on the fixing frame through an adjusting screw, and the width of the slot can be adjusted by screwing the adjusting screw.

4. The assistive inductive fixture of claim 1, wherein, The top of the clamping plate is higher than the top surface of the fixing frame to form a step.

5. The assistive inductive fixture of claim 4, wherein, The fixing frame is provided with a mounting hole, and the fixing frame is fixed on a machine by screwing a screw into the mounting hole.

6. The assistive inductive fixture of claim 1, wherein, The auxiliary sensing jig is also provided with the elastic reflective sheet, which is capable of blocking the signal emitted by the emitting end of the plate passing sensor after being bent, so that the signal is reflected to the receiving end of the plate passing sensor.

7. A misjudgment-proof board passing sensing system comprising a board passing sensor, characterized in that, The plate passing sensor is a mirror surface reflection type photoelectric sensor.

8. The misjudgment-proof board passing sensing system according to claim 7, characterized by ​

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