Cleaning device of circuit board conveying equipment and circuit board assembly line

Abstract

The utility model provides a cleaning device of a circuit board conveying device and a circuit board assembly line, and relates to the technical field of electronic assembly, the cleaning device of the circuit board conveying device comprises a rolling type brush arranged below a conveying belt, the rolling type brush comprises a brush roller and bristles arranged along the circumferential direction and the axial direction of the brush roller, and the brush roller is provided with a plurality of grooves; the axis of the brush roller is parallel to the width direction of the conveying belt, bearing seats are arranged at the two ends of the brush roller and connected with the rack, the bristles make contact with the conveying belt, and when the conveying belt moves, the rolling type brush is driven to rotate. The passively-driven rolling type brush is arranged below the conveying belt, and the conveying belt is used for driving the brush to rotate to clean the lower surface of the belt. The tin slag on the conveying belt can be effectively removed, meanwhile, the problem of static electricity generated by long-time friction is avoided, and the reliability and the yield of circuit board assembly are improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic assembly technology, and in particular to a cleaning device for circuit board conveying equipment and a circuit board assembly line. Background Technology

[0002] In the process of electronic assembly and manufacturing, circuit board (PCB) production lines play a crucial role. As an important component of the production line, PCB conveyor equipment's main function is to transport PCBs from one workstation to another to complete various assembly steps. During PCB assembly, especially after wave soldering, the fixtures used to hold the PCBs are often coated with flux along with the PCBs, resulting in flux and solder residue on the heated fixtures. During transport, flux and solder drip onto the conveyor belt and solidify. Under the influence of the flux, solder dross adheres to the surface of the conveyor belt, and this residual solder dross may fall onto the PCBs, causing quality defects such as short circuits and poor solder joints, or even rendering the PCBs unusable, affecting product reliability and yield.

[0003] Existing technologies typically use fixed brushes or brushes with independent drive units mounted on conveyor equipment. However, due to the special nature of electronic assembly and electronic products, static electricity must be avoided during the manufacturing process. During prolonged operation, both fixed and independently driven brushes generate significant static electricity through continuous friction between the brush bristles and the conveyor belt, posing a threat to circuit boards and electronic components on the conveyor equipment and potentially causing damage.

[0004] Therefore, it is necessary to improve the cleaning technology of existing circuit board conveying equipment to overcome the shortcomings of the existing technology. Utility Model Content

[0005] To overcome the problems existing in related technologies, one of the objectives of this utility model is to provide a cleaning device for circuit board conveying equipment. This cleaning device cleans the lower surface of the conveyor belt by installing a passively driven rolling brush under the conveyor belt, using the conveyor belt to drive the brush to rotate. This effectively removes solder slag from the conveyor belt while avoiding static electricity problems caused by prolonged friction, thus improving the reliability and yield of circuit board assembly.

[0006] A cleaning device for a circuit board conveying equipment includes:

[0007] A rolling brush is disposed below the conveyor belt. The rolling brush includes a brush roller and bristles arranged circumferentially and axially along the brush roller. The axis of the brush roller is parallel to the width direction of the conveyor belt. Bearing seats are provided at both ends of the brush roller. The bearing seats are connected to the frame. The bristles are in contact with the conveyor belt. When the conveyor belt moves, it drives the rolling brush to rotate.

[0008] Furthermore, the rolling brushes can be positioned at one or more locations below the conveyor belt, such as at the beginning, middle, or end of a ramp section. One or more rolling brushes can be installed depending on the length of the conveyor belt and cleaning requirements. Theoretically, they can also be installed above the conveyor belt, but the cleaning effect and ease of installation are not as good as when installed below.

[0009] Furthermore, the brush roller can be made of materials such as metal (e.g., aluminum alloy, stainless steel), plastic, nylon, etc. The bristles can be made of materials such as nylon, PP, PET, metal wire (e.g., copper wire, stainless steel wire), natural fibers, etc. For anti-static requirements, anti-static bristles can be selected.

[0010] Furthermore, the bristles can be arranged on the brush roller in straight lines, spirals, V-shapes, or other patterns. The bristle density can be adjusted according to cleaning needs. Bristles of different hardness can be selected based on the cleaning requirements.

[0011] Furthermore, the parallelism between the brush roller axis and the width direction of the conveyor belt should be controlled within a certain range to ensure cleaning effectiveness. Theoretically, the brush roller axis can also be at a certain angle to the width direction of the conveyor belt, but parallel arrangement provides the best cleaning effect and ease of installation.

[0012] Furthermore, the contact between the brush bristles and the conveyor belt can be either slight or with a certain amount of pressure. The contact area can be controlled by adjusting the length and density of the brush bristles.

[0013] Furthermore, sliding bearing housings or rolling bearing housings (such as ball bearings and roller bearings) can be used. Bearing housings can be made of materials such as metal (e.g., steel, aluminum alloy) or plastic. Bushings can be used instead of bearing housings, but bearing housings have lower friction and are more suitable for passive drives.

[0014] Furthermore, a distance adjustment mechanism is provided between the bearing housing and the frame, which is used to adjust the distance between the rolling brush and the conveyor belt.

[0015] A distance adjustment mechanism has been added, which allows for adjustment of the distance between the rolling brush and the conveyor belt. This enables the cleaning device to adapt to conveyor belts of different thicknesses or tensions, and can be adjusted according to the wear of the brush bristles, ensuring that the bristles maintain appropriate contact pressure with the conveyor belt, thereby guaranteeing good cleaning results and a long service life.

[0016] Furthermore, the bristles of the rolling brush are elastic.

[0017] The flexible bristles adapt better to the surface of the conveyor belt, maintaining good surface contact and improving cleaning effectiveness. At the same time, the flexible bristles act as a buffer during cleaning, reducing wear on the conveyor belt and extending its service life.

[0018] Furthermore, the bristles can be made of elastic materials such as nylon, PP, and PET. Different bristle materials with varying moduli of elasticity can be selected to meet different cleaning needs. Non-elastic bristles can be used, but their cleaning effect and protection of the conveyor belt are not as good as those made with elastic bristles.

[0019] Furthermore, it also includes a slag-collecting mechanism, which includes a collection container located below the rolling brush.

[0020] A slag-collecting mechanism has been added, with a collection container placed under the rolling brush to collect contaminants such as solder dross removed by the brush bristles. This design prevents contaminants such as solder dross from scattering into the equipment or surrounding environment, maintaining a clean production environment and facilitating the unified collection and treatment of solder dross.

[0021] Furthermore, the slag-collecting mechanism can be a simple container or a complex structure with components such as baffles and filters. The collection container can be made of materials such as metal or plastic. It can be square, round, or other shapes. The size of the collection container should be determined based on the amount of tin slag generated and the cleaning frequency. It can be designed as a pull-out or flip-up collection container for easy cleaning.

[0022] Furthermore, the slag-collecting mechanism also includes a support frame, which is fixedly connected to the frame, and the collection container is placed on the support frame.

[0023] The support frame is fixedly connected to the frame, providing a stable support for the collection container and ensuring that the collection container can be placed stably under the rolling brush to effectively collect the removed contaminants.

[0024] Furthermore, the support frame can be made of materials such as metal (e.g., steel, aluminum alloy) or plastic. The support frame can adopt a frame structure, a plate structure, etc. The support frame and the machine frame can be fixedly connected by bolts, welding, or snap-fit ​​connections. The collection container can be embedded in the support frame or placed on a platform of the support frame. The collection container can also be suspended from the support frame.

[0025] Furthermore, the support frame has openings on its top surface and one side, and baffles on the remaining surfaces.

[0026] The openings on the top and one side facilitate the placement and removal of the collection container and the entry of solder dross. The baffles on the remaining surfaces prevent solder dross and other contaminants from splashing into the surrounding environment during use, further ensuring the cleanliness of the production environment.

[0027] Furthermore, the opening can be square, round, rectangular, etc., and its size should facilitate the placement and removal of the collection container and the entry of solder dross. The baffle can be made of materials such as metal or plastic. The height of the baffle should be sufficient to prevent solder dross from splashing. The support frame and collection container form a pull-out structure.

[0028] Furthermore, the distance adjustment mechanism includes an adjusting bolt and a spring. The spring is disposed between the bearing seat and the frame, with one end of the spring abutting against the bearing seat and the other end abutting against the frame. One end of the adjusting bolt is connected to the frame, and the other end abuts against the bearing seat. The adjusting bolt is used to adjust the compression of the spring, thereby adjusting the distance between the rolling brush and the conveyor belt.

[0029] By adjusting the bolt and spring, the distance between the rolling brush and the conveyor belt can be precisely adjusted. The spring provides a continuous and stable force to ensure the stability of the connection, while the adjusting bolt provides flexibility, allowing for easy adjustment of the distance between the brush bristles and the belt as needed.

[0030] Furthermore, it is necessary to select the appropriate spring stiffness and adjusting bolt specifications based on the actual adjustment force and stroke.

[0031] Furthermore, the distance adjustment mechanism also includes a stabilizing bracket, which is fixedly connected to the frame. The stabilizing bracket has a sliding groove, and the bearing seat is slidably disposed in the sliding groove. The end of the adjusting bolt abuts against the bearing seat.

[0032] A stabilizing bracket and a sliding groove were added. The stabilizing bracket provides a stable sliding track for the bearing housing, ensuring smooth movement during adjustment and preventing shaking or jamming. The sliding groove restricts the movement trajectory of the bearing housing, allowing it to move only in a predetermined direction, thus improving the accuracy and reliability of the adjustment.

[0033] Furthermore, the stabilizing bracket can be made of metal (such as steel or aluminum alloy). The stabilizing bracket can be plate-shaped, frame-shaped, or other similar shapes. Guide rails, guide columns, or other structures can be used instead of the stabilizing bracket and sliding groove. The stabilizing bracket and frame can be fixedly connected by bolts, welding, or other methods. The dimensions of the sliding groove should match the bearing housing, with a certain clearance to ensure smooth sliding of the bearing housing. The end of the adjusting bolt can directly abut against the bearing housing, or it can abut against the bearing housing through a shim. The end of the adjusting bolt can mate with the recess on the bearing housing.

[0034] Furthermore, it also includes an electrostatic discharge scraper, which is arranged parallel to the axis of the brush roller and has cleaning teeth that contact the brush bristles.

[0035] An electrostatic discharge scraper has been added. Its cleaning teeth contact the bristles, removing accumulated static electricity as the bristles rotate and combing them to remove debris while preventing tangling. This further reduces the risk of static electricity generation, improves the safety of circuit board production, and also helps keep the bristles clean and extend their lifespan.

[0036] Furthermore, the electrostatic discharge scraper can be made of conductive materials (such as metal or conductive plastic) or electrostatic dissipative materials. The parallelism between the electrostatic discharge scraper and the brush roller axis should be controlled within a certain range to ensure cleaning effectiveness. The cleaning teeth can be sharp, comb-like, serrated, or other shapes. The cleaning teeth and bristles can make slight contact or contact with a certain amount of pressure.

[0037] The second objective of this utility model is to provide a circuit board assembly line, including a circuit board conveying device and a cleaning device for the circuit board conveying device as described above.

[0038] Applying the aforementioned cleaning device to a circuit board assembly line enables the line to have efficient and reliable conveyor belt cleaning capabilities. This effectively removes contaminants such as solder dross from the conveyor belt, preventing solder dross from affecting circuit board quality, reducing the risk of static electricity generation, and improving the yield and production efficiency of the assembled circuit boards. Simultaneously, the cleaning device has a simple structure, low cost, and is easy to maintain, enhancing the economy and practicality of the entire assembly line.

[0039] Furthermore, the circuit board conveying equipment can be a belt conveyor, roller conveyor, chain conveyor, etc. Cleaning devices can be installed at specific locations on the conveying equipment, such as the beginning, middle, or end of a ramp section. One or more cleaning devices can be installed depending on the length of the conveying equipment and cleaning requirements.

[0040] The beneficial effects of this utility model are as follows:

[0041] This utility model provides a cleaning device for circuit board conveying equipment. This device utilizes a passively driven rolling brush installed below the conveyor belt. The movement of the conveyor belt drives the brush roller to rotate, and the brush bristles contact the lower surface of the belt for cleaning. This structure is simple, low-cost, and requires no additional power source. The cleaning function is achieved solely through the movement of the conveyor belt, effectively removing contaminants such as solder dross adhering to the lower surface of the conveyor belt, preventing solder dross from falling onto the circuit board and causing quality defects. Simultaneously, the passive drive method effectively reduces friction between the brush bristles and the belt, lowering the risk of static electricity generation and ensuring the safety of the circuit board and electronic components. Attached Figure Description

[0042] Figure 1 This is a side view of the cleaning device of the circuit board conveying equipment provided in Embodiment 1 of this application installed on the conveying equipment;

[0043] Figure 2 This is a perspective view of the cleaning device of the circuit board conveying equipment provided in Embodiment 1 of this application.

[0044] Figure label:

[0045] 100. Rolling brush; 200. Bearing housing; 300. Slag collection mechanism; 310. Collection container; 320. Support frame; 330. Baffle. Detailed Implementation

[0046] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0047] Example 1

[0048] like Figures 1-2 As shown, this embodiment provides a cleaning device for a circuit board conveying equipment and a circuit board assembly line including the cleaning device.

[0049] The cleaning device of the circuit board conveying equipment in this embodiment is installed on the circuit board conveying equipment of the circuit board assembly line. The circuit board conveying equipment includes a frame and a conveyor belt for conveying circuit boards.

[0050] The cleaning device for the circuit board conveying equipment includes a rolling brush 100 and a slag-collecting mechanism 300.

[0051] A rolling brush 100 is positioned below the conveyor belt. The rolling brush 100 includes a brush roller and bristles arranged circumferentially and axially along the brush roller. In this embodiment, the brush roller is made of aluminum alloy, and the bristles are made of nylon. The nylon bristles are elastic, allowing them to better adapt to the unevenness of the conveyor belt surface, maintain good surface contact with the conveyor belt, and improve cleaning effectiveness. Simultaneously, the elastic bristles act as a buffer during the cleaning process, reducing wear on the conveyor belt. The bristles are evenly and densely arranged circumferentially and axially along the brush roller to provide sufficient cleaning coverage.

[0052] The axis of the brush roller is parallel to the width direction of the conveyor belt, allowing the bristles to contact the entire width of the conveyor belt and ensuring thorough cleaning. Bearing seats 200 are provided at both ends of the brush roller, and rolling bearings are installed within the bearing seats 200 to reduce friction during brush roller rotation. The bearing seats 200 are connected to the frame, fixing the rolling brush 100 beneath the conveyor belt.

[0053] In this embodiment, when the conveyor belt moves, the brush bristles come into contact with the lower surface of the conveyor belt. Due to the friction between the brush bristles and the conveyor belt, the rolling brush 100 is driven to rotate passively, thereby cleaning the lower surface of the conveyor belt.

[0054] The slag-collecting mechanism 300 includes a support frame 320 and a collection container 310. The support frame 320 is fixedly connected to the frame; in this embodiment, the support frame 320 is fixed to the frame by bolts. The collection container 310 is located below the rolling brush 100 and is used to collect contaminants such as tin dross removed from the conveyor belt by the brush bristles. The collection container 310 is placed on the support frame 320.

[0055] The support frame 320 has openings on its top surface and one side, and baffles 330 on the remaining surfaces. The opening on the top surface facilitates the placement and removal of the collection container 310, and the opening on the side facing the conveyor belt allows contaminants such as solder dross to enter the collection container 310. The baffles 330 on the remaining surfaces prevent solder dross from splashing into the surrounding environment during use, keeping the production workshop clean. In this embodiment, the collection container 310 has a drawer-type structure, which can be easily pulled out from the support frame 320 for easy cleaning of the collected solder dross.

[0056] The cleaning device in this embodiment is installed below the inclined conveyor belt of the circuit board assembly line. It can effectively remove solder dross adhering to the inclined conveyor belt, preventing solder dross from falling onto the circuit board and causing quality defects such as short circuits and poor soldering. At the same time, the use of a passively driven rolling brush 100 avoids the problem of static electricity generated by long-term friction, ensuring the safety of the circuit board and electronic components.

[0057] The circuit board assembly line of this embodiment includes a circuit board conveying device and the aforementioned cleaning device. The cleaning device is installed below the conveyor belt of the circuit board conveying device, effectively removing contaminants such as solder dross from the conveyor belt. This prevents solder dross from affecting the quality of the circuit boards, reduces the risk of static electricity generation, and improves the yield rate and production efficiency of the assembled circuit boards. At the same time, the cleaning device has a simple structure, low cost, and is easy to maintain, enhancing the economy and practicality of the entire assembly line.

[0058] Example 2

[0059] This embodiment provides a cleaning device for a circuit board conveying equipment, which can adjust the distance between the cleaning brush and the conveyor belt according to actual needs.

[0060] like Figures 1-2 As shown, the cleaning device of the circuit board conveying equipment in this embodiment is installed on the circuit board conveying equipment. The circuit board conveying equipment includes a frame and a conveyor belt for conveying circuit boards.

[0061] The cleaning device in this embodiment includes a rolling brush 100, a slag-collecting mechanism 300, and a distance adjustment mechanism.

[0062] A rolling brush 100 is disposed below the conveyor belt. The rolling brush 100 includes a brush roller and brush bristles. The bristles are arranged circumferentially and axially along the brush roller. In this embodiment, the brush roller is made of stainless steel. The brush bristles are made of PP material. The bristles are arranged in a spiral.

[0063] The axis of the brush roller is parallel to the width direction of the conveyor belt. Bearing seats 200 are provided at both ends of the brush roller, and rolling bearings are installed inside the bearing seats 200.

[0064] In this embodiment, when the conveyor belt moves, the brush bristles come into contact with the lower surface of the conveyor belt. Due to the friction between the brush bristles and the conveyor belt, the rolling brush 100 is driven to rotate passively, thereby cleaning the lower surface of the conveyor belt.

[0065] The slag-collecting mechanism 300 includes a support frame 320 and a collection container 310. The support frame 320 is fixedly connected to the frame. In this embodiment, the support frame 320 is fixed to the frame by welding. The collection container 310 is located below the rolling brush 100 and is used to collect contaminants such as tin dross removed from the conveyor belt by the brush bristles.

[0066] The support frame 320 has openings on its top surface and one side, and baffles 330 on the remaining surfaces. In this embodiment, the collection container 310 has a drawer-type structure, which can be easily pulled out from the support frame 320.

[0067] The distance adjustment mechanism is used to adjust the distance between the rolling brush 100 and the conveyor belt. In this embodiment, the distance adjustment mechanism includes an adjusting bolt, a spring, and a stabilizing bracket.

[0068] The stabilizing bracket is fixedly connected to the frame. In this embodiment, the stabilizing bracket is fixed to the frame by bolts. The stabilizing bracket is made of sheet metal. A sliding groove is provided on the stabilizing bracket, and the extension direction of the sliding groove is perpendicular to the lower surface of the conveyor belt. In this embodiment, the sliding groove is a long, narrow through groove.

[0069] A spring is disposed between the bearing housing 200 and the frame. In this embodiment, the spring is a compression spring, with one end abutting against the bearing housing 200 and the other end abutting against the opposite side of the frame opposite the stabilizing bracket.

[0070] The adjusting bolt is threaded to the frame, and its axis is parallel to the extension direction of the sliding groove. The end of the adjusting bolt abuts against the bearing housing 200. In this embodiment, the end of the adjusting bolt is provided with a hemispherical protrusion that mates with a corresponding recess on the bearing housing 200.

[0071] By rotating the adjusting bolt, the length of the adjusting bolt extending out of the frame can be changed, thereby pushing the bearing housing 200 up and down within the sliding groove. Due to the elastic force of the spring, the bearing housing 200 will always maintain an upward tendency (towards the conveyor belt), so that the bristles maintain a certain contact pressure with the conveyor belt.

[0072] When it is necessary to adjust the distance between the brush bristles and the conveyor belt, this can be achieved by rotating the adjusting bolt.

[0073] In this embodiment, scale markings can also be set on the stabilizing bracket to facilitate precise control of the distance between the brush bristles and the conveyor belt.

[0074] Example 3

[0075] like Figures 1-2 As shown, this embodiment provides a cleaning device for a circuit board conveying equipment. This device can effectively clean the conveyor belt, especially remove solder dross adhering to the lower surface of the conveyor belt, and has good electrostatic control capabilities.

[0076] The cleaning device of the circuit board conveying equipment in this embodiment includes a rolling brush 100, a slag-collecting mechanism 300, a distance adjustment mechanism, and an electrostatic discharge scraper.

[0077] A rolling brush 100 is positioned below the conveyor belt. The rolling brush 100 includes a brush roller and bristles arranged circumferentially and axially along the roller. The axis of the brush roller is parallel to the width direction of the conveyor belt. The brush roller is made of nylon. The bristles are anti-static and possess a certain degree of elasticity. The bristles are arranged in a V-shape. Bearing seats 200 are located at both ends of the brush roller, and rolling bearings are installed within the bearing seats 200.

[0078] The slag-collecting mechanism 300 is used to collect contaminants such as solder dross removed by the rolling brush 100. In this embodiment, the slag-collecting mechanism 300 includes a collection container 310. The collection container 310 is disposed below the rolling brush 100. To facilitate the cleaning of solder dross, the collection container 310 is connected to the frame via a slide rail. A pulley is provided below the collection container 310, which rolls on the slide rail, allowing the collection container 310 to be easily pulled out and pushed in. The opening of the collection container 310 faces upwards to receive solder dross removed from the conveyor belt.

[0079] An electrostatic discharge scraper is positioned near the rolling brush 100 to remove static charge accumulated on the bristles. The length of the electrostatic discharge scraper is parallel to the axis of the brush roller. The scraper is made of a conductive metal material with good conductivity. It features comb-like cleaning teeth that are evenly arranged along its length. These teeth contact the bristles effectively, ensuring better contact and removal of static electricity.

[0080] Working principle:

[0081] As the conveyor belt moves, the friction generated by the contact between the brush bristles and the lower surface of the conveyor belt causes the rolling brush 100 to rotate passively. The rotating bristles brush the lower surface of the conveyor belt, removing contaminants such as solder dross adhering to the belt. The removed solder dross falls into the collection container 310 below. The cleaning teeth on the electrostatic discharge scraper contact the brush bristles, conducting away the static charge accumulated on the bristles and releasing it onto the frame, thereby reducing the risk of static electricity generation.

[0082] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this application. Any specific values ​​in all examples shown and discussed herein should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0083] Furthermore, it should be noted that the use of terms such as "first" and "second" is merely for ease of distinction, and unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0084] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any 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. A cleaning device for a circuit board conveying equipment, the circuit board conveying equipment comprising a frame and a conveyor belt, characterized in that, include: A rolling brush (100) is provided below the conveyor belt. The rolling brush (100) includes a brush roller and brush bristles arranged circumferentially and axially along the brush roller. The axis of the brush roller is parallel to the width direction of the conveyor belt. Bearing seats (200) are provided at both ends of the brush roller. The bearing seats (200) are connected to the frame. The brush bristles are in contact with the conveyor belt. When the conveyor belt moves, it drives the rolling brush (100) to rotate. It also includes an electrostatic discharge scraper, which is arranged parallel to the axis of the brush roller and has cleaning teeth that contact the brush bristles.

2. The cleaning device for the circuit board conveying equipment according to claim 1, characterized in that: A distance adjustment mechanism is also provided between the bearing housing (200) and the frame, the distance adjustment mechanism being used to adjust the distance between the rolling brush (100) and the conveyor belt.

3. The cleaning device for the circuit board conveying equipment according to claim 1, characterized in that: The bristles of the rolling brush (100) are elastic.

4. The cleaning device for the circuit board conveying equipment according to claim 1, characterized in that: It also includes a slag-collecting mechanism (300), which includes a collection container (310) located below the rolling brush (100).

5. The cleaning device for the circuit board conveying equipment according to claim 4, characterized in that: The slag-collecting mechanism (300) also includes a support frame (320), which is fixedly connected to the frame, and the collection container (310) is placed on the support frame (320).

6. The cleaning device for the circuit board conveying equipment according to claim 5, characterized in that: The support frame (320) has an opening on its top surface and one side, and baffles (330) on the remaining surfaces.

7. The cleaning device for the circuit board conveying equipment according to claim 2, characterized in that: The distance adjustment mechanism includes an adjusting bolt and a spring. The spring is disposed between the bearing seat (200) and the frame. One end of the spring abuts against the bearing seat (200) and the other end abuts against the frame. One end of the adjusting bolt is connected to the frame and the other end abuts against the bearing seat (200). The adjusting bolt is used to adjust the compression of the spring, thereby adjusting the distance between the rolling brush (100) and the conveyor belt.

8. The cleaning device for the circuit board conveying equipment according to claim 7, characterized in that: The distance adjustment mechanism also includes a stabilizing bracket, which is fixedly connected to the frame. The stabilizing bracket has a sliding groove, and the bearing seat (200) is slidably disposed in the sliding groove. The end of the adjusting bolt abuts against the bearing seat (200).

9. A circuit board assembly line, characterized in that, Includes circuit board conveying equipment and a cleaning device for the circuit board conveying equipment as described in any one of claims 1-8.

Images