Processing device for electronic products

Abstract

The application discloses a processing device for electronic products, which comprises a workbench provided with a conveying belt, connecting roller frames between the workbenches and a carrier plate for placing circuit boards, the carrier plate can be conveyed between the connecting roller frames and the conveying belt, a support is arranged above the workbench, a cylinder is arranged on the top of the support, a piston rod of the cylinder penetrates through the support, a lower end of the piston rod is connected with a silk screen frame which can move up and down above the conveying belt, a silk screen bottom plate is arranged on the bottom of the silk screen frame, a sliding groove is arranged on each of the two opposite inner walls of the silk screen frame and above the silk screen bottom plate, a sliding block which can reciprocate in the sliding groove is arranged in each of the sliding grooves, a material guide plate is arranged in the silk screen frame and above the scraper, and a concave area is formed on the material guide plate and outside the area with the material outlet through holes of the silk screen bottom plate.

Description

Technical Field

[0001] This invention relates to a processing apparatus for electronic products, belonging to the technical field of electronic product processing equipment. Background Technology

[0002] Screen printing refers to the process of using a screen as a printing plate and creating a screen printing plate with images and text through a photosensitive plate-making method. Screen printing consists of five main elements: screen printing plate, squeegee, ink, printing table, and substrate. It utilizes the basic principle that ink can pass through the mesh openings of the screen printing plate in the image areas, while ink cannot pass through the mesh openings in the non-image areas. During printing, ink is poured into one end of the screen printing plate, and a squeegee applies a certain pressure to the ink areas on the screen printing plate while moving at a constant speed towards the other end of the screen printing plate. As it moves, the ink is squeezed from the mesh openings of the image areas onto the substrate by the squeegee. Screen printing equipment for electronic products such as circuit boards uses solder powder instead of ink, aligning the mesh openings with the solder joints on the circuit board for printing.

[0003] Existing screen printing equipment for electronic products suffers from problems such as circuit board misalignment and inaccurate solder printing when printing on circuit boards, resulting in insufficient product processing precision and low efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a processing device for electronic products. This processing device realizes the automatic operation of feeding, conveying and solder powder coating, which can ensure the positional accuracy of the circuit board during the operation and the uniformity of solder powder distribution, thereby improving the processing accuracy and efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a processing device for electronic products, including a worktable with a conveyor belt, a connecting roller frame located at the front end of the worktable, and a material carrier for placing circuit boards. The material carrier can be conveyed between the connecting roller frame and the conveyor belt. A support is provided above the worktable, and a cylinder is installed on the top of the support. The piston rod of the cylinder passes through the support, and the lower end of the piston rod is connected to a screen printing frame that can move up and down above the conveyor belt. A screen printing base plate is installed at the bottom of the screen printing frame. At least two positioning posts are provided on the lower surface of the screen printing base plate. The material carrier is provided with positioning holes that cooperate with the positioning posts. On the two inner walls opposite to each other of the screen printing frame and above the screen printing base plate, there is a sliding groove. Each sliding groove is provided with a slider that can move back and forth in the sliding groove. The two sliders are connected by a mounting rod with a scraper. The lower end face of the inclined scraper contacts the upper surface of the screen printing base plate. At least one slider is connected to a driving mechanism. The screen printing frame has a feed port. The central area of ​​the screen printing base plate has several evenly distributed discharge holes. A guide plate is provided inside the screen printing frame and above the squeegee. A recessed area is formed on the guide plate outside the area with the discharge through hole on the screen printing base plate. Several discharge holes are opened on the recessed area at intervals. A discharge pipe is connected below each discharge hole. A valve is installed on the inlet.

[0006] The following are further improvements to the above technical solution: 1. In the above scheme, a motor is installed on the slider, one end of the mounting rod is connected to the output shaft of the motor, and the other end is rotatably connected to another slider through a bearing.

[0007] 2. In the above scheme, the guide plate includes a first inclined portion and a second inclined portion, wherein the ends of the first inclined portion and the second inclined portion that are far apart from each other are higher than the ends that are close to each other, thereby forming the recessed area at their connection.

[0008] 3. In the above scheme, one end of the screen printing base plate is hinged to the screen printing frame, and the other end is fixedly connected to the screen printing frame by bolts or keyways.

[0009] 4. In the above scheme, cabinet doors are rotatably connected to the sides of the workbench.

[0010] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The present invention provides a processing device for electronic products, wherein a cylinder is mounted on the top of a support, the piston rod of the cylinder passes through the support and the lower end of the piston rod is connected to a screen printing frame that can move up and down above a conveyor belt, a screen printing base plate is mounted on the bottom of the screen printing frame, at least two positioning posts are provided on the lower surface of the screen printing base plate, positioning holes that cooperate with the positioning posts are provided on the material carrier plate, and a sliding groove is installed on each of the two inner walls opposite to the screen printing frame and located above the screen printing base plate, and a slider that can reciprocate within each sliding groove is provided, thereby realizing the automatic operation of feeding, conveying and solder powder coating, and ensuring the positional accuracy of the circuit board during operation, thus improving the accuracy and efficiency of processing.

[0011] 2. The processing apparatus for electronic products of the present invention has a guide plate arranged inside the screen printing frame and above the scraper. A recessed area is formed on the guide plate outside the area with the discharge through hole on the screen printing base plate. Several discharge holes are opened on the recessed area at intervals. A discharge pipe is connected below each discharge hole. A valve is installed on the inlet. This can ensure the uniformity of solder powder distribution and avoid waste caused by disorderly falling solder powder and corrosion damage to components, thereby further improving the processing efficiency and accuracy. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the overall structure of the processing apparatus for electronic products according to the present invention; Appendix Figure 2 This is a front structural cross-sectional view of the processing apparatus for electronic products according to the present invention; Appendix Figure 3 This is a side structural cross-sectional view of the processing apparatus for electronic products according to the present invention; Appendix Figure 4 Appendix to this invention Figure 2 Enlarged view of point A; Appendix Figure 5 Appendix to this invention Figure 3 Enlarged view of point B.

[0013] In the attached diagrams: 1. Workbench; 2. Connecting roller frame; 3. Conveyor belt; 4. Carrier plate; 5. Support; 6. Cylinder; 7. Screen printing frame; 8. Screen printing base plate; 9. Guide plate; 10. Discharge pipe; 11. Valve; 12. Slide groove; 13. Slider; 14. Motor; 15. Scraper; 16. Cabinet door; 17. Positioning post; 18. Positioning hole; 19. Mounting rod; 20. Feed inlet. Detailed Implementation

[0014] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention 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 the invention. 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 "linked" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this patent based on the specific circumstances.

[0015] Example 1: A processing apparatus for electronic products includes a worktable 1 with a conveyor belt 3, a connecting roller frame 2 located at the front end of the worktable 1, and a material carrier plate 4 for placing circuit boards. The material carrier plate 4 can be conveyed between the connecting roller frame 2 and the conveyor belt 3. A support 5 is provided above the worktable 1. A cylinder 6 is installed on the top of the support 5. The piston rod of the cylinder 6 passes through the support 5 and the lower end of the piston rod is connected to a screen printing frame 7 that can move up and down above the conveyor belt 3. A screen printing base plate 8 is installed at the bottom of the screen printing frame 7. At least two positioning posts 17 are provided on the lower surface of the screen printing base plate 8. The material carrier plate 4 is provided with positioning holes 18 that cooperate with the positioning posts 17. On the two inner walls opposite to each other of the screen printing frame 7 and above the screen printing base plate 8, a sliding groove 12 is installed. Each sliding groove 12 is provided with a slider 13 that can reciprocate within the sliding groove 12. The two sliders 13 are connected by a mounting rod 19 with a scraper 15. The lower end face of the inclined scraper 15 contacts the upper surface of the screen printing base plate 8. At least one slider 13 is connected to a driving mechanism. The screen printing frame has a feed port. The central area of ​​the screen printing base plate 8 has several evenly distributed discharge holes. A guide plate 9 is provided inside the screen printing frame 7 and above the scraper 15. A recessed area is formed on the guide plate 9 outside the area with the discharge through hole on the screen printing base plate 8. Several discharge holes are opened in the recessed area at intervals. A discharge pipe 10 is connected below each discharge hole. A valve 11 is installed on the inlet 20.

[0016] A motor 14 is mounted on the aforementioned slider 13. One end of the aforementioned mounting rod 19 is connected to the output shaft of the motor 14, and the other end is rotatably connected to another slider 13 via a bearing.

[0017] The aforementioned guide plate 9 includes a first inclined portion and a second inclined portion, wherein the ends of the first inclined portion and the second inclined portion that are far apart from each other are higher than the ends that are close to each other, thereby forming the aforementioned recessed area at their connection.

[0018] One end of the aforementioned screen printing base plate 8 is hinged to the screen printing frame 7, and the other end is fixedly connected to the screen printing frame 7 by bolts or keyways.

[0019] Example 2: A processing apparatus for electronic products includes a worktable 1 with a conveyor belt 3, a connecting roller frame 2 located at the front end of the worktable 1, and a material carrier plate 4 for placing circuit boards. The material carrier plate 4 can be conveyed between the connecting roller frame 2 and the conveyor belt 3. A support 5 is provided above the worktable 1. A cylinder 6 is installed on the top of the support 5. The piston rod of the cylinder 6 passes through the support 5 and the lower end of the piston rod is connected to a screen printing frame 7 that can move up and down above the conveyor belt 3. A screen printing base plate 8 is installed at the bottom of the screen printing frame 7. At least two positioning posts 17 are provided on the lower surface of the screen printing base plate 8. The material carrier plate 4 is provided with positioning holes 18 that cooperate with the positioning posts 17. On the two inner walls opposite to each other of the screen printing frame 7 and above the screen printing base plate 8, a sliding groove 12 is installed. Each sliding groove 12 is provided with a slider 13 that can reciprocate within the sliding groove 12. The two sliders 13 are connected by a mounting rod 19 with a scraper 15. The lower end face of the inclined scraper 15 contacts the upper surface of the screen printing base plate 8. At least one slider 13 is connected to a driving mechanism. The screen printing frame has a feed port. The central area of ​​the screen printing base plate 8 has several evenly distributed discharge holes. A guide plate 9 is provided inside the screen printing frame 7 and above the scraper 15. A recessed area is formed on the guide plate 9 outside the area with the discharge through hole on the screen printing base plate 8. Several discharge holes are opened in the recessed area at intervals. A discharge pipe 10 is connected below each discharge hole. A valve 11 is installed on the inlet 20.

[0020] A motor 14 is mounted on the slider 13. One end of the mounting rod 19 is connected to the output shaft of the motor 14, and the other end is rotatably connected to another slider 13 through a bearing. The motor 14 drives the scraper 15 to rotate, which can not only adjust the tilt angle of the scraper 15 to better adapt to various processing scenarios, but also allow the scraper 15 to be flipped so that it can act on the solder powder during the reciprocating motion with the slider 12, thereby improving processing efficiency.

[0021] The aforementioned guide plate 9 includes a first inclined portion and a second inclined portion, wherein the ends of the first inclined portion and the second inclined portion that are far apart from each other are higher than the ends that are close to each other, thereby forming the aforementioned recessed area at their connection.

[0022] Cabinet doors 16 are rotatably connected to the side of the workbench 1.

[0023] When using the above-mentioned processing device for electronic products, the carrier board containing the circuit board is placed on the carrier roller frame, and the carrier board is moved to the connecting roller frame. The rotating roller on the connecting roller moves, causing the carrier board to move to the worktable. The cylinder pushes the screen printing frame and screen printing base plate to move until the screen printing frame descends to the positioning post inserting into the positioning hole. The guide rod can make the movement of the screen printing frame more stable. The solder powder falls onto the screen printing base plate through the inclined surface of the guide plate. The motor drives one side of the scraper to contact the top surface of the screen printing base plate. The lead screw adjusts the slider and motor to move along the slide groove, causing the scraper to carry the solder powder to move and fall onto the circuit board through the hole in the screen printing base plate. When the scraper moves to the other end of the screen printing base plate, the motor rotates, causing the second side of the scraper to contact the top surface of the screen printing base plate. The lead screw drives the scraper to scrape the solder powder in the opposite direction, so that there is enough solder powder on each solder joint on the circuit board. Finally, the cylinder 6 retracts and resets. A support is installed above the workbench, and a cylinder is mounted on the top of the support. The piston rod of the cylinder passes through the support, and the lower end of the piston rod is connected to a screen printing frame that can move up and down above a conveyor belt. A screen printing base plate is installed at the bottom of the screen printing frame. At least two positioning posts are provided on the lower surface of the screen printing base plate. Positioning holes that cooperate with the positioning posts are provided on the material carrier plate. A sliding groove is installed on each of the two inner walls opposite to the screen printing frame and above the screen printing base plate. A slider that can reciprocate within the sliding groove is provided in each sliding groove. The two sliders are connected by a mounting rod with a scraper. The lower end face of the inclined scraper contacts the upper surface of the screen printing base plate. At least one slider is connected to a drive mechanism. A feed port is opened on the screen printing frame, and several evenly distributed discharge through holes are opened in the central area of ​​the screen printing base plate. In the process of screen printing circuit boards, the feeding, conveying, and solder powder coating operations are realized automatically. It can also ensure the positional accuracy of the circuit board during the operation, avoid the offset, and improve the processing accuracy and efficiency. Furthermore, a guide plate is provided inside the screen printing frame and above the squeegee. A recessed area is formed on the guide plate outside the area with the discharge through hole on the screen printing base plate. Several discharge holes are opened in the recessed area at intervals. A discharge pipe is connected below each discharge hole. A valve is installed on the inlet. The solder powder from the inlet falls into the screen printing base plate through the discharge pipe on the guide plate. This can ensure the uniformity of solder powder distribution and avoid waste caused by disorderly falling solder powder and corrosion damage to the parts, thereby further improving the processing efficiency and accuracy.

[0024] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A processing apparatus for electronic products, comprising a worktable (1) on which a conveyor belt (3) is mounted, a connecting roller frame (2) located at the front end of the worktable (1), and a carrier plate (4) for placing circuit boards, the carrier plate (4) being transferable between the connecting roller frame (2) and the conveyor belt (3), characterized in that: A support (5) is provided above the workbench (1). A cylinder (6) is installed on the top of the support (5). The piston rod of the cylinder (6) passes through the support (5) and the lower end of the piston rod is connected to a screen printing frame (7) that can move up and down above the conveyor belt (3). A screen printing base plate (8) is installed at the bottom of the screen printing frame (7). At least two positioning posts (17) are provided on the lower surface of the screen printing base plate (8). The material carrier plate (4) is provided with positioning holes (18) that cooperate with the positioning posts (17). On the two inner walls opposite to each other of the screen printing frame (7) and above the screen printing base plate (8), there is a slide groove (12). Each slide groove (12) is provided with a slider (13) that can move back and forth in the slide groove (12). The two sliders (13) are connected by a mounting rod (19) with a scraper (15). The lower end face of the inclined scraper (15) is in contact with the upper surface of the screen printing base plate (8). At least one slider (13) is connected to the driving mechanism. The screen printing frame (7) has a feed port (20). The central area of ​​the screen printing base plate (8) has several evenly distributed discharge holes. A guide plate (9) is provided inside the screen printing frame (7) and above the scraper (15). A recessed area is formed on the guide plate (9) and outside the area with the discharge through hole on the screen printing base plate (8). Several discharge holes are opened on the recessed area at intervals. A discharge pipe (10) is connected below each discharge hole. A valve (11) is installed on the inlet (20).

2. The processing apparatus for electronic products according to claim 1, characterized in that: A motor (14) is mounted on the slider (13). One end of the mounting rod (19) is connected to the output shaft of the motor (14), and the other end is rotatably connected to another slider (13) through a bearing.

3. The processing apparatus for electronic products according to claim 1 or 2, characterized in that: The guide plate (9) includes a first inclined portion and a second inclined portion, wherein the ends of the first inclined portion and the second inclined portion that are far apart from each other are higher than the ends that are close to each other, thereby forming the recessed area at their connection.

4. A processing apparatus for electronic products according to claim 1 or 2, characterized in that: One end of the screen printing base plate (8) is hinged to the screen printing frame (7), and the other end is fixedly connected to the screen printing frame (7) by bolts or keyways.

5. A processing apparatus for electronic products according to claim 1 or 2, characterized in that: The workbench (1) is rotatably connected to cabinet doors (16) on all sides.

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