A circuit board surface mount equipment
By introducing light-shielding and warning mechanisms into the PCB mounting equipment, the problem of eye damage caused by laser welding light has been solved, thereby improving the safety and protective performance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING GUOXUN ELECTRONICS CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing PCB surface mount equipment has insufficient light protection mechanisms during laser welding, resulting in the emitted light causing eye damage to workers, and there is a lack of safety warning measures.
The light-blocking mechanism includes a housing, slide bar, rack, connecting rod, PC board, and drive motor. The PC board blocks light through gear meshing and is equipped with LED warning lights to improve safety.
It effectively blocks the light during laser welding, protecting the eyes of workers and improving safety and equipment protection during operation.
Smart Images
Figure CN224521476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface mount technology (SMT) equipment, specifically a circuit board SMT equipment. Background Technology
[0002] A circuit board (PCB) is a substrate used to connect and support electronic components. It has conductive lines and mounting positions for electronic components printed on it. It is an indispensable part of electronic equipment, carrying the signal transmission and power supply between electronic components. Depending on the structure and application, PCBs can be divided into various types such as single-sided boards, double-sided boards, multilayer boards, and flexible boards. When processing PCBs, surface mount technology (SMT) equipment is used. SMT equipment is an important part of the PCB production process. It is used to accurately mount electronic components onto the PCB. The accuracy and stability of the SMT equipment have a significant impact on the reliability and performance of the PCB.
[0003] Patent document CN221728806U discloses a SMT (Surface Mount Technology) assembly equipment for circuit boards. It discloses that the equipment includes a base, with a conveyor frame and a mounting seat fixedly mounted on the upper surface of the base. A telescopic plate is slidably connected to the upper surface of the mounting seat, and a first spring is arrayed between the telescopic plate and the mounting seat. This invention uses the rotation of a cam shaft to allow a spring-loaded support plate to be adaptively positioned and supported below the circuit board, thus ensuring stable and reliable fixing of the circuit board, improving the assembly quality of the assembly equipment, and preventing the circuit board from easily collapsing and being damaged due to suspension. The conveyor frame can sequentially transport multiple assembly devices for assembly processing. Subsequently, two spring-loaded positioning seats adaptively clamp and fix the circuit board. Simultaneously, the retraction of a second electric push rod facilitates the delivery of the circuit board to the assembly device for bonding, improving the working efficiency of the bonding equipment.
[0004] However, the aforementioned publicly available literature on SMT (Surface Mount Technology) assembly equipment for circuit boards mainly focuses on improving the working efficiency of the bonding equipment, which makes it inconvenient to block the light emitted during laser welding.
[0005] Therefore, it is necessary to develop a light-blocking mechanism to block the light emitted during laser welding. Utility Model Content
[0006] The purpose of this utility model is to provide a circuit board surface mount device to solve the technical problem of improving the protective performance of circuit board surface mount devices mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a circuit board mounting equipment, comprising: a mounting function box and a conveyor belt, wherein the inner wall of the mounting function box is provided with a processing groove, and the outer surface of the mounting function box is provided with a light-blocking mechanism, the light-blocking mechanism being used to block the light emitted during laser welding;
[0008] The light-blocking mechanism includes a housing and a PC board. The housing is located on the outer wall of the patch functional box. A sliding rod is installed on the inner wall of the housing. A rack is installed around the outer wall of the sliding rod. A connecting rod is installed on the outer wall of the rack. The PC board is located at the bottom of the connecting rod. A mounting platform is installed on the inner wall of the housing. A drive motor is installed on the top of the mounting platform. A gear is installed at the output end of the drive motor, and the gear meshes with the rack. The outer wall of the PC board is provided with a light-blocking coating, and the light-blocking coating is made of GP-IR material. A rubber pad layer is installed on the bottom of the PC board.
[0009] Preferably, the conveyor belt is located inside the patching function box, the outer wall of the patching function box is equipped with a control panel, the inner wall of the processing slot is equipped with an XY electric slide rail assembly, and the output end of the XY electric slide rail assembly is equipped with a patching head.
[0010] Preferably, the outer wall of the PC board is provided with a warning mechanism, which is used to improve safety during operation.
[0011] Preferably, the warning mechanism includes a warning groove and an LED warning light, and the outer wall of the PC board is provided with a warning groove.
[0012] Preferably, the inner wall of the warning slot is equipped with a mounting plate, the outer wall of the mounting plate is provided with multiple sets of LED warning lights, and the inner wall of the warning slot is equipped with a circuit box.
[0013] Preferably, a support rod is installed on the inner wall of the warning groove, and a first magnet is installed on the outer wall of the support rod.
[0014] Preferably, the outer wall of the support rod is provided with a transparent plastic plate, and a second magnet is installed on the outer wall of the transparent plastic plate.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model uses a light-blocking mechanism to shield the light emitted during laser welding. Existing equipment, when using laser welding on patches, emits light that can damage the eyes of workers. Therefore, this needs to be improved. First, during laser welding, the drive motor rotates the gear, which causes the rack to move on the slide rod, thus moving the connecting rod and the PC board. The PC board is moved above the conveyor belt, shielding the large gap between the conveyor belt and the processing tank. The rubber pad layer is attached to the top of the conveyor belt support, and the light-blocking coating is used to protect one side of the PC board. Thus, the PC board is used to shield the light emitted during welding, avoiding prolonged exposure to light that could damage the eyes of workers.
[0017] 2. This utility model improves safety during operation by installing a warning mechanism. When the equipment is in operation, the LED warning light switch button is located on the control panel. When the equipment is working, the LED warning light is activated to emit light, informing the staff that the equipment is working and improving safety. The mounting plate is installed in the warning slot by bolts, and the transparent plastic plate is installed by adsorption using the first and second magnets. The transparent plastic plate can be disassembled and replaced. The circuit box is electrically connected to the equipment, thereby improving safety during operation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the front structure of the patch functional box of this utility model;
[0020] Figure 3 This is a schematic diagram of the side structure of the PC board of this utility model;
[0021] Figure 4 This is a schematic diagram of the shell structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the warning groove part of this utility model.
[0023] In the diagram: 1. Conveyor belt; 2. Patch placement function box; 3. Control panel; 4. Processing slot; 5. XY electric slide rail assembly; 6. Patch placement head; 7. Housing; 8. Slide rod; 9. Rack; 10. Connecting rod; 11. PC board; 12. Mounting platform; 13. Drive motor; 14. Gear; 15. Anti-light coating; 16. Rubber pad layer; 17. Warning slot; 18. Mounting plate; 19. LED warning light; 20. Circuit box; 21. Support rod; 22. First magnet; 23. Transparent plastic plate; 24. Second magnet. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] Please see Figure 1 and Figure 2A circuit board (PCB) surface mount device includes: a surface mount function box 2 and a conveyor belt 1. The surface mount function box 2 has a processing groove 4 on its inner wall. The conveyor belt 1 is located inside the surface mount function box 2. A control panel 3 is installed on the outer wall of the surface mount function box 2. An XY electric slide rail assembly 5 is installed on the inner wall of the processing groove 4. A surface mount head 6 is installed at the output end of the XY electric slide rail assembly 5. When a PCB is placed on the conveyor belt 1 and then transported to below the surface mount head 6, the XY electric slide rail assembly 5 moves the surface mount head 6, allowing the surface mount head 6 to attach components to the PCB using a laser. The surface mount function box 2 includes visual recognition and positioning: scanning the PCB using a camera or visual recognition system to identify the placement position and orientation of each component and establish a positioning system. The transformation relationship between the pick-and-place machine system coordinate system and the PCB and component coordinate systems is calculated to obtain the precise motion coordinates of the pick-and-place machine. Machine vision can automatically determine the coordinates of the Mark center system to ensure the accuracy of component placement. The feeding system provides components: The feeding system is responsible for providing various types of electronic components to ensure timely and efficient component replacement during production. Different types of feeders (such as tape, reel, tube, and bulk feeders) identify the type, size, and pin orientation of components through internal sensors or cameras and transmit this information to the pick-and-place machine's control system. The placement head picks up components: The placement head is the core component of the pick-and-place machine, usually composed of multiple nozzles, and can handle components of various sizes and shapes simultaneously. The placement head picks up the nozzle at the appropriate position based on the package type, component number, and other parameters of the imported components. It then uses vacuum suction or mechanical clamping to pick up the required components from the feeder. Component placement: The placement head 6 moves the component above the designated position on the PCB, descends, and places it in the predetermined position on the PCB. During placement, the placement head must ensure that the component's pins are aligned with the pads on the PCB to guarantee soldering quality. Control system coordination: The computer control system (electronic control system) of the pick-and-place machine is the command center, controlling a series of complex, orderly, and accurate movements. It consists of a computer unit and I / O units, controlling PCB input and positioning, the placement head 6's picking, detection, placement, and feeder detection, achieving high-efficiency and automated placement. Real-time monitoring and feedback: During the placement process, the machine's internal control system monitors the entire operation in real time to ensure each step is completed smoothly. If a deviation is detected, the control system adjusts the parameters in real time to adapt to the needs of different production batches, thereby achieving a more efficient placement process.
[0028] Please see Figure 1 , Figure 3 and Figure 4The surface of the mounting box 2 is equipped with a light-shielding mechanism to block the light emitted during laser welding. The light-shielding mechanism includes a housing 7 and a PC board 11. The housing 7 is located on the outer wall of the mounting box 2. A slide rod 8 is installed on the inner wall of the housing 7. A rack 9 is mounted around the outer wall of the slide rod 8. A connecting rod 10 is installed on the outer wall of the rack 9. The PC board 11 is located at the bottom of the connecting rod 10. A mounting platform 12 is installed on the inner wall of the housing 7. A drive motor 13 is installed on the top of the mounting platform 12. A gear 14 is installed at the output end of the drive motor 13, and the gear 14 meshes with the rack 9. The outer wall of the PC board 11 is covered with a light-shielding coating 15, which is made of G-P28-IR material. A light-shielding coating is installed at the bottom of the PC board 11. The existing equipment uses laser welding to weld patches, but the emitted light can damage the eyes of workers. Therefore, this needs to be improved. First, during laser welding, the drive motor 13 drives the gear 14 to rotate. The rotation of the gear 14 causes the rack 9 to move on the slide rod 8, which in turn moves the connecting rod 10 and the PC board 11. The PC board 11 is moved above the conveyor belt 1 to block the large gap between the conveyor belt 1 and the processing groove 4. The rubber pad layer 16 is attached to the top of the support of the conveyor belt 1. The anti-light coating 15 is used to protect one side of the PC board 11. The PC board 11 is used to block the light emitted during welding, avoiding long-term light damage to the eyes of workers.
[0029] Please see Figure 4 and Figure 5 The outer wall of the PC board 11 is equipped with a warning mechanism to improve safety during operation. The warning mechanism includes a warning groove 17 and LED warning lights 19. The outer wall of the PC board 11 is equipped with a warning groove 17, and an installation plate 18 is installed on the inner wall of the warning groove 17. Multiple sets of LED warning lights 19 are installed on the outer wall of the installation plate 18. A circuit box 20 is installed on the inner wall of the warning groove 17, and a support rod 21 is installed on the inner wall of the warning groove 17. A first magnet 22 is installed on the outer wall of the support rod 21, and a transparent plastic plate 23 is installed on the outer wall of the support rod 21. A second magnet 24 is installed on the outer wall of the transparent plastic plate 23. When the equipment is working, the switch button of the LED warning light 19 is located on the control panel 3. When the equipment is working, the LED warning light 19 is activated to emit light, informing the staff that the equipment is working and improving safety. The installation plate 18 is installed in the warning groove 17 by bolts. The transparent plastic plate 23 is installed by adsorption using the first magnet 22 and the second magnet 24. The transparent plastic plate 23 can be disassembled and replaced. The circuit box 20 is electrically connected to the equipment, thereby improving safety during operation.
[0030] The working principle is as follows: the circuit board is placed on conveyor belt 1, and then the circuit board is transported to the area below the placement head 6. The XY electric guide rail assembly 5 then moves the placement head 6, allowing it to attach components to the circuit board using a laser. The placement function box 2 includes visual recognition and positioning: it scans the PCB using a camera or visual recognition system to identify the placement position and orientation of each component, establishes the transformation relationship between the placement machine system coordinate system and the PCB and component coordinate systems, calculates the precise motion coordinates of the placement machine, and the machine vision can automatically calculate the Mark... The central system coordinates ensure the accuracy of component placement; the feeding system provides components: the feeding system is responsible for providing various types of electronic components, ensuring timely and efficient component replacement during production. Different types of feeders (such as tape, reel, tube, and bulk feeders) identify the type, size, and pin orientation of components through internal sensors or cameras, and transmit this information to the pick-and-place machine's control system; the placement head picks up components: the placement head is the core component of the pick-and-place machine, usually composed of multiple nozzles, and can handle components of various sizes and shapes simultaneously. The placement head picks up the nozzle at the corresponding position based on the package type, component number, and other parameters of the imported components. It then uses vacuum suction or mechanical clamping to pick up the required components from the feeder. Component placement: The placement head 6 moves the component above the designated position on the PCB, descends, and places it in the predetermined position on the PCB. During placement, the placement head must ensure that the component's pins are aligned with the pads on the PCB to guarantee soldering quality. Control system coordination: The computer control system (electronic control system) of the pick-and-place machine is the command center, controlling a series of complex, orderly, and accurate movements. It consists of a computer unit and I / O units, controlling PCB input and positioning, the placement head 6's picking, detection, placement, and feeder detection, achieving high-efficiency and automated placement. Real-time monitoring and feedback: During the placement process, the machine's internal control system monitors the entire operation in real time to ensure that each step is completed smoothly.If a deviation is detected, the control system will adjust the parameters in real time to adapt to the needs of different production batches, thereby achieving a more efficient mounting process. In existing equipment, when laser welding is used for patch mounting, the emitted light can damage the eyes of workers. Therefore, improvements are needed. Firstly, during laser welding, the drive motor 13 drives the gear 14 to rotate. The rotation of gear 14 causes the rack 9 to move on the slide rod 8, which in turn moves the connecting rod 10 and the PC board 11, moving the PC board 11 above the conveyor belt 1 to block the large gap between the conveyor belt 1 and the processing groove 4. The rubber padding layer 16 adheres to the top of the support of the conveyor belt 1, and the anti-light coating 15... To protect one side of the PC board 11, the PC board 11 is used to block the light emitted during welding, preventing prolonged light damage to the workers' eyes. When the equipment is working, the switch button of the LED warning light 19 is located on the control panel 3. When the equipment is working, the LED warning light 19 is activated to emit light, informing the workers that the equipment is working and improving safety. The mounting plate 18 is installed in the warning slot 17 by bolts. The transparent plastic plate 23 is installed by adsorption using the first magnet 22 and the second magnet 24. The transparent plastic plate 23 can be disassembled and replaced. The circuit box 20 is electrically connected to the equipment, thereby improving safety during operation.
[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A circuit board surface mount equipment, characterized in that, Includes: a patch function box (2) and a conveyor belt (1). The inner wall of the patch function box (2) is provided with a processing groove (4). The outer surface of the patch function box (2) is provided with a light-blocking mechanism, which is used to block the light emitted during laser welding. The light-blocking mechanism includes a housing (7) and a PC board (11). The housing (7) is located on the outer wall of the patch function box (2). A slide rod (8) is installed on the inner wall of the housing (7). A rack (9) is installed around the outer wall of the slide rod (8). A connecting rod (10) is installed on the outer wall of the rack (9). The PC board (11) is located at the bottom of the connecting rod (10). A mounting platform (12) is installed on the inner wall of the housing (7). A drive motor (13) is installed on the top of the mounting platform (12). A gear (14) is installed at the output end of the drive motor (13), and the gear (14) meshes with the rack (9). The outer wall of the PC board (11) is provided with a light-blocking coating (15), and the light-blocking coating (15) is made of G-P28-IR material. A rubber pad layer (16) is installed on the bottom of the PC board (11).
2. The circuit board surface mount equipment according to claim 1, characterized in that: The conveyor belt (1) is located inside the patching function box (2). The outer wall of the patching function box (2) is equipped with a control panel (3). The inner wall of the processing groove (4) is equipped with an XY electric slide rail assembly (5). The output end of the XY electric slide rail assembly (5) is equipped with a patching head (6).
3. The circuit board surface mount equipment according to claim 1, characterized in that: The outer wall of the PC board (11) is provided with a warning mechanism, which is used to improve safety during operation.
4. A circuit board surface mount equipment according to claim 3, characterized in that: The warning mechanism includes a warning groove (17) and an LED warning light (19), and the outer wall of the PC board (11) is provided with a warning groove (17).
5. A circuit board surface mount equipment according to claim 4, characterized in that: The inner wall of the warning slot (17) is equipped with an installation plate (18), the outer wall of the installation plate (18) is provided with multiple sets of LED warning lights (19), and the inner wall of the warning slot (17) is equipped with a circuit box (20).
6. A circuit board surface mount equipment according to claim 4, characterized in that: The inner wall of the warning groove (17) is fitted with a support rod (21), and the outer wall of the support rod (21) is fitted with a first magnet (22).
7. A circuit board surface mount equipment according to claim 6, characterized in that: The outer wall of the support rod (21) is provided with a transparent plastic plate (23), and a second magnet (24) is installed on the outer wall of the transparent plastic plate (23).