Secondary dust removal discharging mechanism

Abstract

The utility model belongs to the technical field of board splitting equipment, and particularly relates to a secondary dust removal discharging mechanism which comprises a discharging assembly and a dust removal assembly, the discharging assembly comprises a conveying guide rail, the conveying guide rail is in driving connection with a discharging support, a circuit board jig is installed on the discharging support, and the dust removal assembly is arranged on the circuit board jig. A circuit board clamping seat is arranged on the circuit board jig in a penetrating mode, the circuit board clamping seat can be movably connected with a circuit board product in a sleeved mode, the dust removal assembly is fixedly arranged on the conveying guide rail corresponding to the circuit board jig, and the dust removal assembly comprises an air blowing air knife and a dust collection funnel. By means of the design, fine dust remaining on PCBs after board splitting and cutting can be effectively removed, the influence of the dust on the product quality is avoided, automatic operation is achieved, and the working efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of plate separating equipment technology, and more specifically, to a secondary dust removal and material discharge mechanism. Background Technology

[0002] A PCB (Printed Circuit Board) is the carrier for the electrical connections of electronic components. In industry, to achieve mass production of PCBs, multiple PCBs are typically fabricated on a single board, and then a PCB splitting machine mills each PCB off. To prevent displacement or warping of the PCB during milling and to ensure PCB processing quality, a conveyor line transports the PCB to be milled to a positioning fixture. The fixture then positions the PCB before milling, and the milled PCB is output via a conveyor line. Common rigid PCB materials include phenolic paper laminates, epoxy paper laminates, polyester glass mat laminates, and epoxy glass cloth laminates. Due to the presence of relatively hard plastic substrates, these materials easily generate debris and dust during milling, thus requiring a dust extraction device.

[0003] Currently, a novel PCB depaneling milling dust extraction mechanism is available on the market, as shown in the patent document CN202322667225.X, entitled "Up-and-Down Follow-up Dust Extraction Mechanism for Depaneling Machines." This mechanism includes a depaneling tray, a horizontal slide rail above the tray, a lifting platform slidably mounted on the slide rail, a depaneling spindle vertically mounted on the lifting platform, an upper dust extraction port at the front end of the spindle, and a lower dust extraction port below the depaneling tray. The center of the lower dust extraction port is aligned with the center of the upper dust extraction port on the same vertical line. The lower dust extraction port is slidably mounted on the lower slide rail, and a synchronous drive module connects the upper and lower dust extraction ports. This synchronously operating up-and-down dust extraction structure effectively absorbs dust generated during depaneling, preventing dust from scattering and contaminating the equipment and the processed products.

[0004] However, even with a top-and-bottom moving dust extraction design, simultaneous dust extraction during board separation often fails to completely remove fine dust from the PCB board, affecting product quality. Therefore, it is still necessary to design equipment to perform a second dust removal process on the PCB board after board separation and cutting. Utility Model Content

[0005] To address the issue that current PCB depaneling machines often fail to completely remove fine dust from PCBs after depaneling and dust extraction, and that residual particulate matter can affect product conductivity and other quality parameters, a secondary dust removal and discharge mechanism is provided.

[0006] A secondary dust removal and discharge mechanism includes a discharge component and a dust removal component. The discharge component includes a conveying guide rail, a discharge bracket is driven and connected to the conveying guide rail, a circuit board fixture is mounted on the discharge bracket, a circuit board holder is provided through the circuit board fixture, and the circuit board holder can movably fit a circuit board product. The dust removal component is fixedly mounted on the conveying guide rail corresponding to the circuit board fixture. The dust removal component includes an air blowing knife and a dust suction funnel.

[0007] Furthermore, the discharge bracket is provided with a vent, which can be connected to the circuit board holder via an air passage, and the area of ​​the vent is smaller than that of the circuit board fixture.

[0008] Furthermore, the conveying guide rail includes a linear screw module and a linear slide rail, the linear screw module and the linear slide rail are parallel to each other, the linear screw module drives and connects to the discharge bracket, and the discharge bracket is slidably sleeved on the linear slide rail.

[0009] Furthermore, the air knife includes an air knife head, a base plate, and a telescopic push rod. Multiple air knife heads are arranged and installed on one side of the base plate corresponding to the circuit board fixture, and the front end of the telescopic push rod is connected to the other side of the base plate.

[0010] Furthermore, a horizontal slide is installed on the base plate, and all the air blowing heads are installed on the horizontal slide. The horizontal slide is driven by a translation push rod. A dust suction hood is provided on the base plate corresponding to one side of the air blowing head, and the opening area of ​​the dust suction hood is larger than the cross-sectional area of ​​the circuit board fixture.

[0011] Furthermore, the telescopic push rod is fixedly installed on the support frame, and the front end of the telescopic push rod passes through the support frame and connects to the base plate. A buffer is provided between the support frame and the base plate, and linear bearings and guide columns that are nested together are respectively installed on the support frame and the base plate.

[0012] Furthermore, the front opening area of ​​the dust collection funnel is larger than the cross-sectional area of ​​the circuit board fixture, the end of the dust collection funnel is connected to the dust collector, and a telescopic cylinder is connected to the rear of the dust collection funnel.

[0013] Furthermore, telescopic cylinders are connected to both sides of the dust collection funnel, and the telescopic cylinders on both sides are symmetrical to each other.

[0014] Furthermore, a proximity sensor is provided on the side of the conveying guide rail corresponding to the circuit board fixture, and the proximity sensor is electrically connected to the conveying guide rail and the dust removal assembly.

[0015] Furthermore, the air-blowing knife is installed vertically downward above the conveying guide rail, and the dust-collecting funnel is installed vertically upward below the conveying guide rail.

[0016] The advantages of this utility model are:

[0017] 1. It can effectively remove the fine dust remaining on the PCB board after board cutting, avoiding the impact of dust on product quality.

[0018] 2. High degree of automation, fast processing speed, no manual operation required, can automatically transport PCB boards and remove dust.

[0019] 3. The design is simple, the equipment cost is low, the adaptability is strong, and it is easy to connect with existing PCB splitting machine systems. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the secondary dust removal and discharge mechanism;

[0022] Figure 2 This is a schematic diagram of the lower part of the secondary dust removal and discharge mechanism;

[0023] Figure 3 Exploded view of the conveyor rail, discharge bracket, and circuit board fixture;

[0024] Figure 4 This is a schematic diagram of the air knife structure;

[0025] Figure 5 This is a schematic diagram of the structure of the lower side of the air knife;

[0026] Figure 6 This is a schematic diagram of the structure of a dust collection funnel.

[0027] Attached Figure Labels

[0028] 1. Conveyor rail; 101. Linear screw module; 102. Linear slide rail; 2. Discharge bracket; 201. Vent; 3. Circuit board fixture; 301. Circuit board holder; 4. Air knife; 401. Air knife head; 402. Base plate; 403. Telescopic push rod; 404. Dust hood; 405. Support frame; 406. Buffer; 407. Linear bearing; 408. Guide column; 5. Dust collection funnel; 501. Telescopic cylinder; 6. Horizontal slide table; 601. Translation push rod; 7. Proximity sensor; 8. Circuit board products. Detailed Implementation

[0029] To address the issue that current PCB depaneling machines often fail to completely remove fine dust from PCBs after depaneling and dust extraction, and that residual particulate matter can affect product conductivity and other quality parameters, a secondary dust removal and discharge mechanism is provided.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] It should be noted that the terms such as "inner", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as part of the scope of implementation of this utility model, as stated above.

[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

[0033] like Figures 1 to 6As shown, this embodiment provides a secondary dust removal and discharge mechanism, including a discharge component and a dust removal component. The discharge component includes a conveying guide rail 1, a discharge bracket 2 drivenly connected to the conveying guide rail 1, a circuit board fixture 3 mounted on the discharge bracket 2, a circuit board holder 301 throughly disposed on the circuit board fixture 3, and a circuit board product 8 movably sleeved on the circuit board holder 301. The dust removal component is fixedly disposed on the conveying guide rail 1 corresponding to the circuit board fixture 3. The dust removal component includes an air blowing knife 4 and a dust suction funnel 5.

[0034] When the equipment is running, the circuit board product 8 that has been separated is placed into the circuit board holder 301 of the circuit board fixture 3 and conveyed forward along the conveying guide rail 1 to the dust removal component. The dust on the circuit board product 8 is removed by the combined action of the air blowing knife 4 and the dust suction funnel 5. Finally, the circuit board product 8 is conveyed to the end of the conveying guide rail 1 for discharge. After a new circuit board product 8 that has not been dusted is placed into the circuit board holder 301, the dust removal and discharge process is repeated.

[0035] The discharge bracket 2 has a vent 201, which is connected to the circuit board holder 301 via an air passage. The area of ​​the vent 201 is smaller than that of the circuit board fixture 3. The design of the vent 201 connecting to the circuit board holder 301 promotes airflow, allowing dust on the circuit board product 8 to be blown off by the air knife 4 and then sucked away by the suction funnel 5 on the other side along the airflow, ensuring the dust removal effect.

[0036] The conveying guide rail 1 includes a linear screw module 101 and a linear slide rail 102, which are parallel to each other. The linear screw module 101 drives and connects to the discharge bracket 2, which is slidably sleeved on the linear slide rail 102. The linear screw module 101, in conjunction with the linear slide rail 102, can drive the discharge bracket 2 to move accurately and quickly, so that the circuit board fixture 3 can be accurately conveyed to the corresponding position of the dust removal component.

[0037] The air-blowing knife 4 includes air-blowing heads 401, a base plate 402, and a telescopic push rod 403. Multiple air-blowing heads 401 are arranged and installed on one side of the base plate 402 corresponding to the circuit board fixture 3. The front end of the telescopic push rod 403 is connected to the other side of the base plate 402. The design of multiple air-blowing heads 401 ensures that the airflow fully covers the circuit board product 8, while the telescopic push rod 403 can push the air-blowing heads 401 forward when the circuit board product 8 arrives, improving the air-blowing dust removal effect.

[0038] A horizontal slide 6 is mounted on the base plate 402, and all the air-blowing heads 401 are mounted on the horizontal slide 6. The horizontal slide 6 is driven by a translation push rod 601. A dust suction hood 404 is provided on the base plate 402 corresponding to one side of the air-blowing head 401, and the opening area of ​​the dust suction hood 404 is larger than the cross-sectional area of ​​the circuit board fixture 3. The translation push rod 601 can drive the air-blowing head 401 to move back and forth, so as to fully blow away the dust remaining in the gaps and corners of the circuit board product 8 from multiple angles. The dust suction hood 404 can wrap around the circuit board product 8 when the telescopic push rod 403 extends forward, preventing dust from escaping into the surrounding environment and promoting the suction of dust into the dust suction funnel 5.

[0039] The telescopic push rod 403 is fixedly mounted on the support frame 405. The front end of the telescopic push rod 403 passes through the support frame 405 and connects to the base plate 402. A buffer 406 is provided between the support frame 405 and the base plate 402. Linear bearings 407 and guide posts 408 are respectively installed on the support frame 405 and the base plate 402, which are interlocked. The support frame 405 provides support for the telescopic push rod 403 and other mechanisms, preventing the air knife 4 from shaking or shifting during operation. The buffer 406 prevents the support frame 405 from colliding and wearing with the base plate 402 during telescopic operation. The linear bearings 407 and guide posts 408 ensure stable and accurate positioning of the air knife head 401 during operation.

[0040] The front opening area of ​​the suction funnel 5 is larger than the cross-sectional area of ​​the circuit board fixture 3. The end of the suction funnel 5 is connected to a dust collector (not shown in the figure), and a telescopic cylinder 501 is connected to the rear of the suction funnel 5. The telescopic cylinder 501 can push the suction funnel 5 forward during suction, so that the suction funnel 5 covers the air vent 201, forming an air passage that isolates it from the outside environment in conjunction with the dust hood 404. The suction funnel 5 is connected to the industrial dust collector to suck up and collect dust for processing.

[0041] The dust collection funnel 5 is connected to telescopic cylinders 501 on both sides, and the telescopic cylinders 501 on both sides are symmetrical. Since the dust collection funnel 5 has a large volume, a symmetrical drive mechanism is set to ensure the stable operation of the dust collection funnel 5.

[0042] A proximity sensor 7 is provided on the side of the conveyor rail 1 corresponding to the circuit board fixture 3. The proximity sensor 7 is electrically connected to the conveyor rail 1 and the dust removal assembly. The proximity sensor 7 is fixedly installed relative to the conveyor rail 1 and is generally located at the front end of the dust removal assembly. When the proximity sensor 7 detects the circuit board fixture 3, it can be used in conjunction with an industrial control computer or other equipment to control the conveyor rail 1 to stop, and the dust removal assembly to start cleaning the circuit board product 8 in the circuit board fixture 3. After the dust removal is completed, the conveyor rail 1 starts to send the circuit board product 8 forward.

[0043] The air-blowing knife 4 is vertically mounted above the conveyor rail 1, and the dust-collecting funnel 5 is vertically positioned below the conveyor rail 1. Since dust has a certain weight, arranging the air-blowing knife 4 and the dust-collecting funnel 5 vertically can further improve the dust removal effect.

[0044] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be assumed that the specific implementation of the present utility model is limited to these descriptions. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present utility model.

Claims

1. A secondary dust removal and discharge mechanism, characterized in that, The device includes a discharge assembly and a dust removal assembly. The discharge assembly includes a conveying guide rail, on which a discharge bracket is driven and connected. A circuit board fixture is mounted on the discharge bracket, and a circuit board holder is provided through the circuit board fixture. The circuit board holder can movably fit a circuit board product. The dust removal assembly is fixedly mounted on the conveying guide rail corresponding to the circuit board fixture. The dust removal assembly includes an air knife and a dust suction funnel.

2. The secondary dust removal and discharge mechanism according to claim 1, characterized in that, The discharge bracket is provided with an air vent, which can be connected to the circuit board holder via an air path. The area of ​​the air vent is smaller than that of the circuit board fixture.

3. The secondary dust removal and discharge mechanism according to claim 1, characterized in that, The conveying guide rail includes a linear screw module and a linear slide rail, which are parallel to each other. The linear screw module drives and connects to the discharge bracket, which is slidably sleeved on the linear slide rail.

4. The secondary dust removal and discharge mechanism according to claim 1, characterized in that, The air knife includes an air knife head, a base plate, and a telescopic push rod. Multiple air knife heads are arranged and installed on one side of the base plate corresponding to the circuit board fixture, and the front end of the telescopic push rod is connected to the other side of the base plate.

5. The secondary dust removal and discharge mechanism according to claim 4, characterized in that, A horizontal slide is mounted on the base plate, and all the air blowing heads are mounted on the horizontal slide. The horizontal slide is driven by a translation push rod. A dust suction hood is provided on the base plate on the side corresponding to the air blowing head. The opening area of ​​the dust suction hood is larger than the cross-sectional area of ​​the circuit board fixture.

6. The secondary dust removal and discharge mechanism according to claim 4, characterized in that, The telescopic push rod is fixedly installed on the support frame. The front end of the telescopic push rod passes through the support frame and connects to the base plate. A buffer is provided between the support frame and the base plate. Linear bearings and guide columns that are nested together are respectively installed on the support frame and the base plate.

7. The secondary dust removal and discharge mechanism according to claim 1, characterized in that, The front opening area of ​​the dust collection funnel is larger than the cross-sectional area of ​​the circuit board fixture. The end of the dust collection funnel is connected to the dust collector, and a telescopic cylinder is connected to the rear of the dust collection funnel.

8. The secondary dust removal and discharge mechanism according to claim 7, characterized in that, The dust collection funnel is connected to telescopic cylinders on both sides, and the telescopic cylinders on both sides are symmetrical to each other.

9. The secondary dust removal and discharge mechanism according to claim 1, characterized in that, A proximity sensor is provided on the side of the conveying guide rail corresponding to the circuit board fixture. The proximity sensor is electrically connected to the conveying guide rail and the dust removal assembly.

10. The secondary dust removal and discharge mechanism according to any one of claims 1-9, characterized in that, The air-blowing knife is installed vertically downwards above the conveyor rail, and the dust-collecting funnel is installed vertically upwards below the conveyor rail.

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