A tin paste extruding device and a conductive cloth soldering machine comprising the same

Abstract

This utility model discloses a solder paste extrusion device and a conductive cloth welding machine incorporating the aforementioned device. The welding machine includes a base, a welding platform, a top cover, and a Y-axis motion system. The core feature is that a Y-axis mounting backplate integrates a heat-insulating paper feeding tray, a solder paste extrusion device, a welding head, and a solder joint visual inspection device. This backplate is driven by the Y-axis moving device for precise positioning. The welding platform is independently mounted on the Y-axis slide rail of the base, forming a dual Y-axis layout. The solder paste extrusion device is securely mounted via a U-shaped connecting plate and a syringe backplate, ensuring solder dispensing accuracy; its dispensing needles are detachable, and the top interface can be connected to a pneumatic or mechanical drive. This utility model, through modular integration and collaborative control, achieves full automation of the conductive cloth welding process, including precise soldering, automatic welding, and online quality inspection, effectively improving production efficiency and the consistency of solder joint quality.

Description

Technical Field

[0001] This utility model belongs to the field of electronic component assembly technology, and specifically relates to a fully automatic welding equipment for welding flexible electromagnetic shielding materials such as conductive cloth, specifically a conductive cloth welding machine that integrates a high-precision solder paste extrusion device and a solder joint visual inspection system. Background Technology

[0002] In the field of electronic component and precision circuit board assembly, the welding process of flexible electromagnetic shielding materials such as conductive cloth has extremely high requirements. It must simultaneously meet multiple demanding performance requirements, including precise welding position, accurate control of solder paste amount, minimization of heat-affected zone, and stable and reliable welding quality. Traditional manual welding or semi-automatic equipment faces a core contradiction—in pursuit of welding accuracy, a split-type, multi-station operation mode is adopted, but this will significantly reduce production efficiency and lead to poor consistency due to excessive human intervention; while purely integrated equipment can improve efficiency, it is often difficult to achieve micron-level precise alignment and process control due to insufficient coordination between various functional modules (such as soldering, welding, and inspection).

[0003] Current mainstream technical solutions have significant limitations: While combined production lines using independent solder paste printers and reflow ovens can achieve mass production, they require large floor space and involve complex line changes and adjustments, making them unsuitable for flexible production demands involving small batches and diverse product varieties. Simple benchtop soldering workstations, although integrating soldering and application functions, often lack online visual inspection and closed-loop feedback capabilities, making it impossible to assess solder joint quality in real time and adjust process parameters promptly, thus compromising yield. Furthermore, traditional solder paste extrusion devices often suffer from insufficient installation rigidity or poor integration with motion modules, leading to vibrations during high-speed reciprocating motion, affecting solder dispensing accuracy and stability.

[0004] Therefore, there is an urgent need to develop a fully automated conductive cloth welding equipment that integrates high-precision solder paste extrusion, instantaneous welding, online visual inspection and intelligent feedback control, so as to achieve precise coordination and spatial optimization of various functional modules under a unified coordinate system, in order to meet the challenges of high-complexity and high-reliability precision welding. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a fully automatic conductive cloth welding machine. This equipment integrates a high-precision solder paste extrusion device, a welding head, and a vision inspection device into a unified motion module, constructing a closed-loop control system. This significantly improves welding position accuracy and process consistency, effectively ensuring the yield rate and production efficiency of conductive cloth welding.

[0006] This utility model includes the following technical solutions: A solder paste extrusion device includes a solder paste syringe, a syringe back plate, a U-shaped connecting plate, a solder dispensing needle, a syringe top interface, and a syringe mounting plate. The solder paste syringe is cylindrical, and it passes through the holes at both ends of the U-shaped connecting plate and is fixed on the U-shaped connecting plate. The bottom edge of the U-shaped connecting plate is fixed on the back plate of the syringe. A syringe mounting plate is fixedly installed parallel to the other side of the syringe back plate; The top of the solder paste syringe is provided with a syringe top interface; The solder paste syringe is equipped with a solder dispensing needle at the bottom.

[0007] Furthermore, in the aforementioned solder paste extrusion device, the syringe back plate is provided with several through holes for connection with the U-shaped connecting plate and the syringe mounting plate.

[0008] Furthermore, in the aforementioned solder paste extrusion device, the through hole is a threaded hole, used to fix the U-shaped connecting plate and the syringe mounting plate by bolts.

[0009] Furthermore, in the aforementioned solder paste extrusion device, the syringe mounting plate is hollow and has several cable connectors on its side.

[0010] Furthermore, in the aforementioned solder paste extrusion device, the solder paste syringe is fixed to the U-shaped connecting plate by a threaded connection or a snap-fit ​​method.

[0011] Furthermore, in the aforementioned solder paste extrusion device, the solder dispensing needle is detachably mounted at the bottom of the solder paste syringe.

[0012] Furthermore, in the aforementioned solder paste extrusion device, the top interface of the syringe is used to connect to a pneumatic source or a mechanical actuation device.

[0013] A conductive cloth soldering machine comprising a solder paste extrusion device as described in any of the preceding claims.

[0014] Furthermore, the aforementioned conductive cloth welding machine includes a base, an X-axis slide rail, a welding platform, a top cover, a Y-axis slide rail, a Y-axis moving device, a Y-axis mounting back plate, a heat insulation paper feeding tray, an operation screen, an information display screen, a solder paste extrusion device, a welding head, and a solder joint visual inspection device. The heat insulation paper feeding tray, solder paste extrusion device, soldering head and solder joint visual inspection device are mounted on the Y-axis mounting back plate. The Y-axis mounting backplate is mounted on the Y-axis moving device, and the Y-axis moving device is mounted on the Y-axis slide rail of the top cover; Side plates are provided on the left and right sides of the top cover, and are installed on both sides of the base through the side plates; The operation screen and the information display screen are mounted on one of the side panels; An X-axis slide rail is mounted on the base, and a rectangular welding platform is mounted on the X-axis slide rail. The welding platform is located below the Y-axis slide rail of the top cover.

[0015] This utility model also discloses the working method of the above-mentioned conductive cloth welding machine, including the following steps: S1 fixes the workpiece to be welded on the welding platform; S2 moves the solder paste extrusion device to a predetermined position via the Y-axis motion system, and extrudes solder paste quantitatively by air pressure or mechanical pushing. The S3 welding head moves to the welding position to complete the welding operation of the conductive cloth; The S4 solder joint visual inspection device acquires real-time images of solder joints, and performs quality analysis manually (remotely) or automatically. S5 can be manually or automatically adjusted based on the test results; After welding is completed, the welding platform automatically moves out and the finished product is removed.

[0016] Compared with the prior art, this utility model has the following outstanding advantages: This invention integrates a high-precision solder paste extrusion device, a soldering head, and a vision inspection device onto a unified Y-axis motion module, constructing a highly integrated automated workstation. Its advantages are as follows: First, it achieves full-process automation from soldering and welding to quality inspection, significantly improving production efficiency and process consistency, and effectively reducing labor costs and operational errors. Second, the rigid connection and coordinated movement of each functional module eliminates the cumulative errors caused by multiple positioning steps. Combined with real-time feedback from the solder joint vision inspection device, it ensures the accuracy of the soldering position and the reliability of the solder joint quality, greatly improving the yield rate. Third, the solder paste extrusion device itself has a stable structure, the solder needles can be quickly replaced, and the universal design of the syringe interface facilitates maintenance and adapts to various process requirements, enhancing the applicability and maintainability of the equipment. Attached Figure Description

[0017] Figure 1 A schematic diagram of the solder paste extrusion device described in this utility model; Figure 2 A front view of the solder paste extrusion device described in this utility model; Figure 3 An overall schematic diagram of the conductive cloth welding machine described in this utility model; Figure 4 A front view of the conductive cloth welding machine described in this utility model.

[0018] In the diagram: base 100, X-axis slide rail 110, welding platform 120, top cover 200, Y-axis slide rail 210, Y-axis moving device 220, Y-axis mounting back plate 230, heat insulation paper feeding tray 231, operation screen 240, information display screen 250, solder paste extrusion device 300, solder paste syringe 310, syringe back plate 320, through hole 321, U-shaped connecting plate 330, solder needle 340, syringe top interface 350, syringe mounting plate 360, cable connector 361, welding head 400, solder joint visual inspection device 500. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example 1 like Figure 1 and 2 As shown, a solder paste extrusion device 300 includes a solder paste syringe 310, a syringe back plate 320, a U-shaped connecting plate 330, a solder dispensing needle 340, a syringe top interface 350, and a syringe mounting plate 360. The solder paste syringe 310 is cylindrical. The solder paste syringe 310 passes through the two end holes of the U-shaped connecting plate 330 and is fixed on the U-shaped connecting plate 330. The bottom edge of the U-shaped connecting plate 330 is fixed on the syringe back plate 320. A syringe mounting plate 360 ​​is fixedly installed parallel to the other side of the syringe back plate 320. The solder paste syringe 310 is provided with a syringe top interface 350 at its top; The solder paste syringe 310 has a solder dispensing needle 340 at the bottom of its top.

[0021] Example 2 like Figure 1 and 2 As shown, a solder paste extrusion device 300 includes a solder paste syringe 310, a syringe back plate 320, a U-shaped connecting plate 330, a solder needle 340, a syringe top interface 350, and a syringe mounting plate 360. The solder paste syringe 310 is cylindrical. The solder paste syringe 310 passes through the two end holes of the U-shaped connecting plate 330 and is fixed on the U-shaped connecting plate 330. The bottom edge of the U-shaped connecting plate 330 is fixed on the syringe back plate 320. A syringe mounting plate 360 ​​is fixedly installed parallel to the other side of the syringe back plate 320. The solder paste syringe 310 is provided with a syringe top interface 350 at its top; The solder paste syringe 310 is provided with a solder dispensing needle 340 at the bottom of its top; The syringe back plate 320 is provided with a plurality of through holes 321 for connecting with the U-shaped connecting plate 330 and the syringe mounting plate 360. The syringe mounting plate 360 ​​is hollow, and several cable connectors 361 are provided on its side. The solder paste syringe 310 is fixed to the U-shaped connecting plate 330 by threaded connection or snap-fit ​​method; The solder dispensing needle 340 is detachably mounted on the bottom of the solder paste syringe 310; The syringe top interface 350 is used to connect to a pneumatic source or a mechanical actuation device.

[0022] Example 3 like Figure 3 and 4 As shown, a conductive cloth soldering machine includes a solder paste extrusion device 300 as described in Example 1 or 2; Includes a base 100, an X-axis slide rail 110, a welding platform 120, a top cover 200, a Y-axis slide rail 210, a Y-axis moving device 220, a Y-axis mounting back plate 230, a heat insulation paper feeding tray 231, an operation screen 240, an information display screen 250, a solder paste extrusion device 300, a welding head 400, and a solder joint visual inspection device 500; The heat insulation paper feeding tray 231, solder paste extrusion device 300, soldering head 400 and solder joint visual inspection device 500 are mounted on the Y-axis mounting back plate 230. The Y-axis mounting backplate 230 is mounted on the Y-axis moving device 220, and the Y-axis moving device 220 is mounted on the Y-axis slide rail 210 of the top cover 200; The top cover 200 is provided with side plates on the left and right sides, and is installed on both sides of the base 100 through the side plates; The operation screen 240 and the information display screen 250 are mounted on one of the side panels; An X-axis slide rail 110 is mounted on the base 100, and a rectangular welding platform 120 is mounted on the X-axis slide rail 110. The welding platform 120 is located below the Y-axis slide rail 210 of the top cover 200.

[0023] The working method of the above-mentioned conductive cloth welding machine includes the following steps: S1 fixes the workpiece to be welded on the welding platform; S2 moves the solder paste extrusion device to a predetermined position via the Y-axis motion system, and extrudes solder paste quantitatively by air pressure or mechanical pushing. The S3 welding head moves to the welding position to complete the welding operation of the conductive cloth; The S4 solder joint visual inspection device acquires real-time images of solder joints, and performs quality analysis manually (remotely) or automatically. S5 can be manually or automatically adjusted based on the test results; After welding is completed, the welding platform automatically moves out and the finished product is removed.

[0024] It is worth noting that the above description of the embodiments focuses on interpreting the technical solution of this utility model, rather than precisely defining its protection scope. Those skilled in the art should understand that appropriate adjustments and optimizations can be made based on the technical details disclosed in the embodiments of this utility model, or equivalent substitutions can be implemented for individual or even all technical elements. Such adjustments and substitutions will not deviate from the core essence of the technical solution of this utility model and should be included within the technical protection scope of the embodiments of this utility model. In short, the protection of this utility model should not be limited to the concrete presentation of the above embodiments, but broadly covers all equivalent changes and improvements that do not contradict its basic concept. In summary, the protection definition of this utility model should be based on the statement of the claims, and the above embodiments are only used as a reference guide for understanding this utility model.

Claims

1. A solder paste extrusion device (300), characterized in that, Includes solder paste syringe (310), syringe back plate (320), U-shaped connecting plate (330), solder dispensing needle (340), syringe top interface (350), and syringe mounting plate (360); The solder paste syringe (310) is cylindrical. The solder paste syringe (310) passes through the two end holes of the U-shaped connecting plate (330) and is fixed on the U-shaped connecting plate (330). The bottom edge of the U-shaped connecting plate (330) is fixed on the syringe back plate (320). A syringe mounting plate (360) is fixedly installed parallel to the other side of the syringe back plate (320). The top of the solder paste syringe (310) is provided with a syringe top interface (350). The solder paste syringe (310) has a solder dispensing needle (340) at the bottom of its top.

2. The solder paste extrusion device (300) according to claim 1, characterized in that, The syringe back plate (320) is provided with several through holes (321) for connecting with the U-shaped connecting plate (330) and the syringe mounting plate (360).

3. The solder paste extrusion device (300) according to claim 2, characterized in that, The through hole (321) is a threaded hole used to fix the U-shaped connecting plate (330) and the syringe mounting plate (360) by bolts.

4. The solder paste extrusion device (300) according to claim 1, characterized in that, The syringe mounting plate (360) is hollow and has several cable connectors (361) on its side.

5. The solder paste extrusion device (300) according to claim 1, characterized in that, The solder paste syringe (310) is fixed to the U-shaped connecting plate (330) by threaded connection or snap-fit.

6. The solder paste extrusion apparatus (300) according to claim 1, characterized in that, The solder dispensing needle (340) is detachably mounted on the bottom of the solder paste syringe (310).

7. The solder paste extrusion apparatus (300) according to claim 1, characterized in that, The syringe top interface (350) is used to connect to a pneumatic source or a mechanical actuation device.

8. A conductive cloth welding machine, characterized in that, It includes a solder paste extrusion device (300) as described in any one of claims 1-7.

9. The conductive cloth welding machine according to claim 8, characterized in that, Includes a base (100), an X-axis slide rail (110), a welding platform (120), a top cover (200), a Y-axis slide rail (210), a Y-axis moving device (220), a Y-axis mounting back plate (230), a heat insulation paper feeding tray (231), an operation screen (240), an information display screen (250), a solder paste extrusion device (300), a welding head (400), and a solder joint visual inspection device (500); The heat insulation paper feeding tray (231), solder paste extrusion device (300), soldering head (400) and solder joint visual inspection device (500) are mounted on the Y-axis mounting back plate (230). The Y-axis mounting backplate (230) is mounted on the Y-axis moving device (220), and the Y-axis moving device (220) is mounted on the Y-axis slide rail (210) of the top cover (200); The top cover (200) is provided with side plates on the left and right sides, and is installed on both sides of the base (100) through the side plates; The operation screen (240) and the information display screen (250) are mounted on one of the side panels; An X-axis slide rail (110) is mounted on the base (100), and a rectangular welding platform (120) is mounted on the X-axis slide rail (110). The welding platform (120) is located below the Y-axis slide rail (210) of the top cover (200).

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