Electronic component manufacturing device

Abstract

The invention relates to the technical field of solder paste spraying equipment, in particular to an electronic component manufacturing device which comprises a substrate, and two walking grooves and two linear grooves are symmetrically formed in the surface of the substrate; the two synchronizers are respectively connected to the two linear grooves in a sliding manner; the two synchronizers are configured to drive the nozzles installed on the synchronizers to do reverse synchronous movement along the linear grooves so that the two nozzles can be switched between the first position and the second position. The synchronizing device is further configured to guide the two spray heads to generate deviating displacement in the transverse direction perpendicular to the central axes of the spray heads along with the walking groove direction when the two spray heads move between the first position and the second position, so that the two spray heads avoid each other in the moving path; according to the solder paste spraying device, on the premise that high precision and high stability are guaranteed, rapid and reliable switching of spray heads is achieved, and the online cleaning function is integrated.

Description

Technical Field

[0001] This invention relates to the field of solder paste spraying equipment technology, and more specifically to an electronic component manufacturing apparatus. Background Technology

[0002] In the current manufacturing process of electronic components, solder paste is applied to circuit boards to ensure reliable fixation and conductive connection of components. As electronic products develop towards higher density and miniaturization, increasingly stringent requirements are being placed on the precision, efficiency, and reliability of solder paste application equipment.

[0003] Automated solder paste spraying devices are widely used in the prior art. For example, patent application number 201810733643.5 discloses a "solder paste application device" with two outlets, which can adapt to the filling of PCB boards with two holes, thus improving production efficiency. The outlet can be replaced with a single outlet tube, three outlet tubes, etc., according to actual needs. The solenoid valve at the outlet can avoid solder paste waste, further improving production efficiency. However, the nozzles of such devices are usually single and fixed, or multiple switchable nozzles connected by a turntable. In actual production, solder paste residue is easily left on the nozzles during operation. If not cleaned in time, it can lead to inaccurate solder paste application, stringing, or even complete nozzle blockage, seriously affecting product yield.

[0004] To address the cleaning and switching issues of a single printhead, existing technologies employ a rotary table to drive multiple printheads. This approach integrates multiple printheads and their independent drive units onto a rotary table, using the table's rotation to switch printheads. While this method achieves the functionality of multiple printheads, it also introduces significant drawbacks: First, the overall structure is complex and bulky, requiring a separate drive system for each printhead, resulting in a heavy load and high inertia on the rotary table, demanding high-performance drive motors, and increasing equipment cost and energy consumption. Second, motion stability and positioning accuracy are poor; the vibration and impact generated during high-speed start-up, stopping, and positioning of the rotary table are significant, affecting the stability of the solder paste spray nozzle and the accuracy of the final solder paste application position. Finally, cleaning and maintenance are inconvenient, as it is difficult to efficiently integrate a cleaning mechanism into a compact rotary table structure. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an electronic component manufacturing apparatus that enables rapid and reliable nozzle switching and integrates online cleaning functions for solder paste application while ensuring high precision and stability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An electronic component manufacturing apparatus, comprising: A substrate, wherein two walking grooves and two straight grooves are symmetrically formed on the surface of the substrate; Two synchronization devices are slidably connected to the two straight grooves respectively, for mounting nozzles; The two synchronization devices are configured to drive their respective installed nozzles to move synchronously in opposite directions along the straight groove, so that the two nozzles switch between a first position and a second position; when one nozzle is in the first position, the other nozzle is in the second position, and the central axes of the two nozzles are collinear in the first position and the second position. The synchronization device is also configured to guide the two nozzles to produce opposite displacements in the lateral direction perpendicular to the central axis of the nozzles as they move between the first and second positions, so that the two nozzles avoid each other in the moving path.

[0007] Preferably, the synchronization device includes: Lateral slide rail; The horizontal slider is slidably mounted on the horizontal slide rail. The movable seat is fixedly connected to the horizontal slider and is used to fix and install the nozzle; Angle plate, fixedly connected to the side of the transverse slider; The roller is rotatably connected to the lower part of the corner plate and is housed in the walking groove, with its outer circumferential surface making rolling contact with the groove wall of the walking groove.

[0008] Preferably, the synchronization device further includes: The upper end of the vertical part of the L-shaped curved plate is fixedly connected to the lower part of the horizontal slide rail; A longitudinal slider is fixedly connected to the lower part of the horizontal portion of the L-shaped bent plate; Two longitudinal slide rails are fixedly disposed on the surface of the substrate, and the longitudinal slider slides in cooperation with the longitudinal slide rails. The vertical portion of the L-shaped bent plate passes through the straight groove and is slidably connected to the straight groove.

[0009] Preferably, it further includes a driving component, the driving component comprising: The motor is fixedly mounted on the upper surface of one end of the substrate, and its output end extends through a pre-drilled hole on the surface of the substrate to the bottom of the substrate. The drive wheel is located below the base plate and is fixedly connected to the output shaft of the motor. Driven wheel, rotatably connected to the lower surface of the other end of the substrate; A belt is tensioned and fitted onto the driving pulley and the driven pulley; The lower ends of the L-shaped curved plates of the two synchronization devices are fixedly connected to both sides of the belt, so that they can be driven by the belt to move synchronously in opposite directions or in opposite directions.

[0010] Preferably, the travel groove is disposed on the outside of the straight groove, and is smoothly connected by a first travel segment, a first inclined segment, a second travel segment, a second inclined segment and a third travel segment in sequence; The length directions of the first stroke segment, the second stroke segment, and the third stroke segment are all parallel to the straight groove. The first stroke segment and the third stroke segment are collinear in length direction, and the second stroke segment is farther away from the straight groove than the first stroke segment.

[0011] Preferably, the first travel segment and the third travel segment are of equal length, and the first inclined segment and the second inclined segment are of equal length.

[0012] Preferably, a through groove is formed in the middle of the substrate; It also includes a cleaning mechanism disposed under the substrate, the cleaning mechanism comprising: A fixing plate is used to fix the base plate below the substrate; A cylinder is fixed to the fixed plate, with its piston rod pointing vertically upwards; A wiping head is connected to the end of the piston rod of the cylinder; When a nozzle moves to the second position, its end is directly above the through groove, and the cylinder can drive the wiping head to rise through the through groove to contact and clean the end of the nozzle.

[0013] Preferably, an air pipe is also fixedly disposed below the substrate, with the outlet end of the air pipe facing the through groove, for blowing air to clean the nozzle end located in the second position.

[0014] This invention provides an electronic component manufacturing apparatus. It has the following beneficial effects: This invention achieves rapid and seamless switching between two nozzles in a first and second position by using two nozzles driven by a synchronization device and cooperating with a drive assembly to make them move in opposite directions synchronously. This effectively improves the overall efficiency of solder paste spraying operations and avoids downtime caused by cleaning or malfunctioning of a single solder paste spraying nozzle. Through the cooperation of the travel trough and rollers, the nozzles are forced to move laterally along the travel trough during the longitudinal movement of the synchronization device, allowing the two nozzles to avoid each other in the middle of their movement path. Without sacrificing the collinearity accuracy of the nozzle central axes, this invention perfectly solves the problem of spatial interference between the two nozzles, ensuring a safe and reliable switching process.

[0015] By employing a single motor coupled with a belt-driven two synchronizing devices that move in opposite directions synchronously, centralized drive for switching between two nozzles is achieved. Only forward and reverse rotation of the motor is required; the transmission structure is simple and compact, the control logic is straightforward, manufacturing and maintenance costs are low, and operation is stable.

[0016] By installing a cleaning mechanism under the substrate and aligning it with the printhead in the second position, automatic online cleaning of the printhead in its non-working position is achieved. This effectively removes residual solder paste from the printhead tip, preventing problems such as clogging, stringing, and inaccurate solder paste application caused by solder paste hardening, thus ensuring stable and consistent solder paste application quality. Furthermore, the combination of an air tube and a wiping head provides a dual cleaning process of blowing and wiping the printhead tip in the second position, resulting in a more thorough cleaning and further reducing the risk of printhead clogging. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a frontal perspective view of the present invention; Figure 4 This is a schematic diagram of the substrate structure; Figure 5 This is a schematic diagram of the synchronization device. Figure 6 This is a bottom view of the present invention; Figure 7 This is a schematic diagram of the structure in the moving state of the present invention; In the diagram: 100, base plate; 101, travel groove; 1011, first stroke section; 1012, second stroke section; 1013, third stroke section; 1014, first inclined section; 1015, second inclined section; 102, straight groove; 103, through groove; 104, longitudinal slide rail; 200, synchronization device; 201, transverse slide rail; 202, movable seat; 203, corner plate; 204, roller; 205, L-shaped curved plate; 206, longitudinal slider; 207, transverse slider; 300, drive assembly; 301, motor; 302, drive wheel; 303, driven wheel; 304, belt; 400, cleaning mechanism; 401, fixed plate; 402, cylinder; 403, wiping head; 404, air pipe. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides an electronic component manufacturing apparatus, mainly used for precise solder paste spraying during the production of electronic components. The apparatus achieves continuous solder paste spraying through the synchronous movement of two nozzles, automatically avoiding collisions during movement, and also features an automatic cleaning function, thus improving the efficiency and quality of solder paste spraying.

[0020] like Figures 1 to 7 As shown, the present invention provides an electronic component manufacturing apparatus, including a substrate 100, two synchronization devices 200, a drive assembly 300, and a cleaning mechanism 400.

[0021] The substrate 100 serves as the support structure for the device, and its surface is symmetrically provided with two travel grooves 101 and two straight grooves 102. The travel grooves 101 are located outside the straight grooves 102, and each travel groove 101 is smoothly connected by a first travel segment 1011, a first inclined segment 1014, a second travel segment 1012, a second inclined segment 1015, and a third travel segment 1013. The length directions of the first travel segment 1011, the second travel segment 1012, and the third travel segment 1013 are all parallel to the straight grooves 102, wherein the first travel segment 1011 and the third travel segment 1013 are of equal length and collinear, and the second travel segment 1012 is further away from the straight grooves 102 than the first travel segment 1011. The first inclined segment 1014 and the second inclined segment 1015 are of equal length and are used to guide the nozzle to generate lateral displacement. A through groove 103 is also provided in the middle of the substrate 100 for the wiping head 403 of the cleaning mechanism 400 to rise. Two longitudinal slide rails 104 are fixedly installed below the substrate 100 to guide the longitudinal movement of the synchronization device 200.

[0022] Two synchronization devices 200 are slidably connected to two straight grooves 102, and each synchronization device 200 is used to install one nozzle. Each synchronization device 200 includes a transverse slide rail 201, a transverse slider 207, a movable seat 202, a corner plate 203, a roller 204, an L-shaped curved plate 205, and a longitudinal slider 206. The transverse slide rail 201 is fixedly connected to the upper end of the vertical portion of the L-shaped curved plate 205, and the transverse slider 207 is slidably disposed on the transverse slide rail 201. The movable seat 202 is fixedly connected to the transverse slider 207 and is used to fix and install the nozzle. The corner plate 203 is fixedly connected to the side of the transverse slider 207. The roller 204 is rotatably connected below the corner plate 203 and is housed within the traveling groove 101, with its outer circumferential surface in rolling contact with the groove wall of the traveling groove 101. The upper end of the vertical portion of the L-shaped curved plate 205 is fixedly connected to the lower part of the transverse slide rail 201, and its vertical portion passes through the straight groove 102 and is slidably connected to the straight groove 102. The longitudinal slider 206 is fixedly connected to the lower part of the horizontal portion of the L-shaped curved plate 205 and is slidably engaged with the longitudinal slide rail 104 below the base plate 100. The synchronization device 200 guides the nozzle to generate lateral displacement during longitudinal movement by the rolling of the roller 204 in the travel groove 101. Specifically, when the roller 204 moves along the travel groove 101, it pushes the transverse slider 207 to slide along the transverse slide rail 201 through the direction of the travel groove 101, thereby causing the nozzle to move laterally perpendicular to the nozzle's central axis.

[0023] The drive assembly 300 is used to drive two synchronizing devices 200 to move synchronously in opposite directions. The drive assembly 300 includes a motor 301, a drive pulley 302, a driven pulley 303, and a belt 304. The motor 301 is fixedly mounted on the upper surface of one end of the substrate 100, and its output end extends below the substrate 100 through a pre-drilled hole in the surface of the substrate 100. The drive pulley 302 is located below the substrate 100 and is fixedly connected to the output shaft of the motor 301. The driven pulley 303 is rotatably connected to the lower surface of the other end of the substrate 100. The belt 304 is tensioned and sleeved on the drive pulley 302 and the driven pulley 303. The lower ends of the L-shaped curved plates 205 of the two synchronizing devices 200 are respectively fixedly connected to both sides of the belt 304. When the motor 301 rotates forward or reverse, the belt 304 drives the two L-shaped curved plates 205 to move synchronously in opposite directions, thereby driving the two nozzles to move synchronously in opposite directions along the straight groove 102.

[0024] A cleaning mechanism 400 is disposed below the substrate 100 and is used to clean the nozzle located at the second position S2. The cleaning mechanism 400 includes a fixing plate 401, a cylinder 402, a wiping head 403, and an air pipe 404. The fixing plate 401 is fixed below the substrate 100; the cylinder 402 is fixed on the fixing plate 401, with its piston rod pointing vertically upward. The wiping head 403 is connected to the end of the piston rod of the cylinder 402. When a nozzle moves to the second position S2, its end is located directly above the through groove 103. The cylinder 402 drives the wiping head 403 to rise and pass through the through groove 103 to contact and clean the end of the nozzle. The air pipe 404 is fixed below the substrate 100, with its outlet end facing the through groove 103, and is used to blow air to clean the end of the nozzle located at the second position S2, enhancing the cleaning effect. This invention can promptly remove residual solder paste from the nozzle tip, effectively preventing problems such as clogging, stringing, and inaccurate solder paste application caused by solder paste solidification, thus ensuring stable and consistent solder paste application quality. Through the cooperation of the air tube and wiping head, the nozzle tip, located in the second position, undergoes dual cleaning via air blowing and wiping. This results in a more thorough cleaning effect, further reducing the risk of nozzle clogging and extending the nozzle's lifespan.

[0025] In this invention, two nozzles are driven by a synchronizing device 200 to move synchronously in opposite directions along a straight groove 102. When one nozzle moves from a first position S1 to a second position S2, the other nozzle moves from the second position S2 to the first position S1. The first position S1 is the solder paste spraying station, and the second position S2 is the stationary station. A motor 301 drives two L-shaped curved plates 205 to move via a belt 304, thereby causing the synchronizing device 200 to slide along the longitudinal slide rail 104.

[0026] During movement, the rollers 204 roll within the travel groove 101. When the rollers 204 of one synchronizing device 200 pass through the first inclined section 1014, the rollers 204 of the other synchronizing device 200 simultaneously pass through the second inclined section 1015. The first inclined section 1014 guides the rollers 204 to move away from the straight groove 102, causing the nozzles to move laterally to avoid collision; similarly, the second inclined section 1015 guides the other nozzle to move away from the straight groove 102. In the second travel section 1012, the two nozzles meet, but due to lateral displacement, they move away from each other to avoid collision. Subsequently, the synchronizing device 200 moving towards the second position S2 moves back towards the straight groove 102 when passing through the second inclined section 1015, eventually reaching the second position S2; while the synchronizing device 200 moving towards the first position S1 moves back towards the straight groove 102 after passing through the first inclined section 1014, reaching the first position S1. Throughout the entire movement path, the two nozzles remained collinear on their central axes, but safe passage was ensured through lateral avoidance.

[0027] When one nozzle is in the second position S2, the cleaning mechanism 400 is activated: cylinder 402 drives the wiping head 403 to rise, cleaning the nozzle tip, while air pipe 404 blows air to assist in cleaning. At this time, the other nozzle is in the first position S1 to perform solder paste spraying. Through this design, solder paste spraying and cleaning are performed simultaneously, improving efficiency.

[0028] This invention, through the cooperation of the traveling groove 101 and the roller 204, forces the nozzles to undergo lateral displacement along the direction of the traveling groove during the longitudinal movement of the synchronization device 200, thereby achieving mutual avoidance between the two nozzles in the middle of the moving path. Without sacrificing the collinearity accuracy of the nozzle central axes, it perfectly solves the problem of spatial interference between the two nozzles, ensuring a safe and reliable switching process.

[0029] The solder paste spraying device of this invention achieves synchronized movement and automatic obstacle avoidance of two nozzles through the ingenious design of a synchronization device and a traveling groove, avoiding the risk of collision. Without sacrificing the collinearity accuracy of the nozzle central axes, it perfectly solves the spatial interference problem between the two nozzles, ensuring a safe and reliable switching process. Simultaneously, by setting a linear groove and a corresponding longitudinal slide rail, a unique and rigid longitudinal guide is provided for the movement of the entire synchronization device, decoupling the complex planar motion into independent longitudinal and lateral movements. This fundamentally guarantees extremely high repeatability of the nozzles at the starting and ending points, avoiding the over-constraint, jamming, and wear problems that may occur with pure traveling groove guidance, resulting in smoother and more reliable operation. The drive component uses a single motor drive, with a simple and reliable structure. The cleaning mechanism automatically cleans the nozzles when they are idle, ensuring the quality of solder paste spraying. The overall device improves the efficiency and reliability of solder paste spraying and is suitable for the high-precision solder paste spraying requirements in electronic component manufacturing.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic component manufacturing apparatus, characterized in that, include: A substrate, wherein two walking grooves and two straight grooves are symmetrically formed on the surface of the substrate; Two synchronization devices are slidably connected to the two straight grooves respectively, for mounting nozzles; The two synchronization devices are configured to drive their respective installed nozzles to move synchronously in opposite directions along the straight groove, so that the two nozzles switch between a first position and a second position; when one nozzle is in the first position, the other nozzle is in the second position, and the central axes of the two nozzles are collinear in the first position and the second position. The synchronization device is also configured to guide the two nozzles to produce opposite displacements in the lateral direction perpendicular to the central axis of the nozzles as they move between the first and second positions, so that the two nozzles avoid each other in the moving path.

2. The electronic component manufacturing apparatus as described in claim 1, characterized in that, The synchronization device includes: Lateral slide rail; The horizontal slider is slidably mounted on the horizontal slide rail. The movable seat is fixedly connected to the horizontal slider and is used to fix and install the nozzle; Angle plate, fixedly connected to the side of the transverse slider; The roller is rotatably connected to the lower part of the corner plate and is housed in the walking groove, with its outer circumferential surface making rolling contact with the groove wall of the walking groove.

3. The electronic component manufacturing apparatus as described in claim 2, characterized in that, The synchronization device further includes: The upper end of the vertical part of the L-shaped curved plate is fixedly connected to the lower part of the horizontal slide rail; A longitudinal slider is fixedly connected to the lower part of the horizontal portion of the L-shaped bent plate; Two longitudinal slide rails are fixedly disposed on the surface of the substrate, and the longitudinal slider slides in cooperation with the longitudinal slide rails. The vertical portion of the L-shaped bent plate passes through the straight groove and is slidably connected to the straight groove.

4. The electronic component manufacturing apparatus as described in claim 3, characterized in that, It also includes a driver component, which includes: The motor is fixedly mounted on the upper surface of one end of the substrate, and its output end extends through a pre-drilled hole on the surface of the substrate to the bottom of the substrate. The drive wheel is located below the base plate and is fixedly connected to the output shaft of the motor. Driven wheel, rotatably connected to the lower surface of the other end of the substrate; A belt is tensioned and fitted onto the driving pulley and the driven pulley; The lower ends of the L-shaped curved plates of the two synchronization devices are fixedly connected to both sides of the belt, so that they can be driven by the belt to move synchronously in opposite directions or in opposite directions.

5. The electronic component manufacturing apparatus as described in claim 1, characterized in that, The travel groove is located on the outside of the straight groove and is smoothly connected by a first travel segment, a first inclined segment, a second travel segment, a second inclined segment and a third travel segment in sequence; The length directions of the first stroke segment, the second stroke segment, and the third stroke segment are all parallel to the straight groove. The first stroke segment and the third stroke segment are collinear in length direction, and the second stroke segment is farther away from the straight groove than the first stroke segment.

6. The electronic component manufacturing apparatus as described in claim 5, characterized in that, The first travel segment and the third travel segment are of equal length, and the first inclined segment and the second inclined segment are of equal length.

7. The electronic component manufacturing apparatus as described in claim 1, characterized in that, A through groove is formed in the middle of the substrate; It also includes a cleaning mechanism disposed under the substrate, the cleaning mechanism comprising: A fixing plate is used to fix the base plate below the substrate; A cylinder is fixed to the fixed plate, with its piston rod pointing vertically upwards; A wiping head is connected to the end of the piston rod of the cylinder; When a nozzle moves to the second position, its end is directly above the through groove, and the cylinder can drive the wiping head to rise through the through groove to contact and clean the end of the nozzle.

8. The electronic component manufacturing apparatus as described in claim 7, characterized in that, An air pipe is also fixedly installed below the substrate, with the outlet end of the air pipe facing the through groove, for blowing air to clean the nozzle end located in the second position.

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