Mouthpiece adjustable patch device

Abstract

The application discloses a suction nozzle adjustable patch device, relates to the technical field of patch machines, and comprises a bearing plate, four mounting grooves are formed in the bottom surface of the bearing plate, four mounting holes are formed in the bottom surface of the bearing plate, each mounting hole is arranged in the inside of a mounting groove, a first electric push rod is mounted in the inside of each mounting hole, three second electric push rods are mounted in the inside of each mounting groove, a connecting rod is connected to the output end of each first electric push rod and the output end of each second electric push rod, and a vacuum suction cup is mounted on the bottom surface of each connecting rod. The first electric push rod is cooperated with the mounting hole, the corresponding vacuum suction cup can be controlled to extend when small electronic components are adsorbed, meanwhile, the remaining second electric push rods driven suction cups are retracted, the first electric push rod is retracted when large electronic components are adsorbed, and the first electric push rod is lower than the other vacuum suction cups, so that different size components can be adapted without manual dismounting, replacing and adjusting the suction nozzle.

Description

Technical Field

[0001] This application relates to the field of chip mounter technology, and in particular to a chip mounter with adjustable nozzle. Background Technology

[0002] Pick-and-place machines are used to attach various electronic components to designated positions on printed circuit boards (PCBs). They work by using a nozzle on the placement head to quickly and stably pick up electronic components using vacuum pressure, then move them to the designated positions on the PCB for placement. Because electronic components are diverse in type and size, ranging from tiny resistors a few millimeters in diameter to large devices like BGA chips and connectors, all can be mounted using nozzles. However, in practical use, the following problems exist: A single PCB needs to mount electronic components of different sizes, but the nozzle is fixed, requiring multiple steps to achieve the mounting. Furthermore, changing to different hard-brush PCBs requires adjusting different nozzle models, making the operation complex and resulting in low production efficiency. Utility Model Content

[0003] To address the problems mentioned in the background section, this application provides an adjustable nozzle placement device, which solves the problem of traditional pick-and-place machines having to change the suction cup to accommodate electrical components of different sizes.

[0004] The adjustable nozzle patch device provided in this application adopts the following technical solution:

[0005] An adjustable nozzle patching device includes a carrier plate. The bottom surface of the carrier plate has four mounting slots and four mounting holes. Each mounting hole is located inside a mounting slot. A first electric actuator is installed inside each mounting hole. Three second electric actuators are installed inside each mounting slot. The output ends of each first and second electric actuator are connected to a connecting rod. A vacuum suction cup is installed on the bottom surface of each connecting rod.

[0006] To optimize the above technical solution, the specific measures also include:

[0007] Furthermore, a support frame is provided below the support plate, and two support frames are connected to the support frame. Each support frame is equipped with a first electric slide rail, and a first sliding block is slidably connected to each first electric slide rail.

[0008] Furthermore, a connecting plate is connected to both of the first sliding blocks, and a second electric slide rail is installed on the bottom surface of the connecting plate. A second sliding block is slidably connected to the second electric slide rail, and the bottom surface of the second sliding block is connected to the upper surface of the support plate.

[0009] Furthermore, the upper surface of the support frame has two through slots, each through slot is provided with a support strip, and each support strip is connected to a fixing plate.

[0010] Furthermore, the front of the support frame is respectively connected to two mounting shells and two first motors. Each mounting shell has a threaded rod rotatably connected inside, and each threaded rod has a moving block threadedly connected to its outer wall. Each moving block is slidably connected inside the mounting shell.

[0011] Furthermore, each of the movable blocks is connected to a movable frame, the bottom surface of each movable frame is in contact with the upper surface of the bearing bar, and the ends of the two threaded rods that are far apart from each other are connected to the output end of the first motor.

[0012] Furthermore, the inner wall of the support frame is connected to two electric telescopic rods, the output end of each electric telescopic rod is connected to a mounting bracket, each mounting bracket is equipped with a second motor, and the output end of each second motor is connected to a fixing mechanism.

[0013] Furthermore, the inner top wall of the support frame is connected to a vertical plate, and the left and right side walls of the vertical plate are both connected to mounting rods. The ends of the two mounting rods that are far apart from each other are threaded with limit rings, and the side walls of the support frame are connected to a controller.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. This application utilizes the coordinated operation of the first electric push rod and the mounting hole to independently control the extension of the corresponding vacuum suction cup when adsorbing small electronic components, while simultaneously retracting the suction cups driven by the other second electric push rods. When adsorbing large electronic components, the first electric push rod retracts, lower than the other vacuum suction cups, allowing for the adaptation of components of different sizes without the need for manual disassembly and replacement of the nozzles. This design completely solves the pain points of cumbersome and time-consuming manual nozzle changing operations in traditional pick-and-place machines, avoids human error during nozzle changing, shortens equipment standby time, ensures nozzle concentricity and placement accuracy, and significantly improves the switching efficiency of multi-product production.

[0016] 2. With four sets of adsorption mechanisms, it supports the simultaneous pick-up and placement of multiple components, breaking the efficiency bottleneck of traditional single nozzle or a small number of nozzles working one by one. Compared with traditional pick-and-place machines, it effectively reduces the nozzle travel path and waiting time, and can complete more placement tasks in the same production cycle. It is especially suitable for high-density, high-volume production scenarios, and significantly improves the overall capacity and space utilization of the production line. Attached Figure Description

[0017] Figure 1 This is a front view of the nozzle-adjustable patch assembly;

[0018] Figure 2 This is a schematic diagram of the mounting slot in an adjustable nozzle patch device;

[0019] Figure 3 This is a schematic diagram of the mounting holes in an adjustable nozzle patch device;

[0020] Figure 4 This is a rear view of the nozzle-adjustable patch assembly.

[0021] Figure 5 This is a schematic diagram of the adjustment mechanism in an adjustable nozzle patch device.

[0022] Reference numerals: 1. Bearing plate; 2. Mounting groove; 3. Mounting hole; 4. First electric push rod; 5. Second electric push rod; 6. Connecting rod; 7. Vacuum suction cup; 8. Bearing frame; 9. Support frame; 10. First electric slide rail; 11. First sliding block; 12. Connecting plate; 13. Second electric slide rail; 14. Second sliding block; 15. Through groove; 16. Bearing strip; 17. Fixing plate; 18. Mounting shell; 19. Threaded rod; 20. Moving block; 21. Moving frame; 22. First motor; 23. Electric telescopic rod; 24. Mounting frame; 25. Fixing mechanism; 26. Second motor; 27. Mounting rod; 28. Limiting ring; 29. ​​Controller; 30. Vertical plate. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] Please see Figure 1-5 This application provides a technical solution for an adjustable nozzle placement device, comprising a roll-up structure, an electric actuator structure, and a planar movement structure. The roll-up structure stores electronic components of various sizes; the electric actuator structure drives different actuators to pick up electronic components of different sizes and place them at corresponding positions on the printed circuit board; the planar movement structure drives the electric actuator structure to move within a plane, moving the electronic components from the roll-up structure onto the printed circuit board.

[0026] The electric actuator structure includes a first electric actuator 4 and a second electric actuator 5. To support the two electric actuators, a support plate 1 is also provided. Four mounting slots 2 and four mounting holes 3 are formed on the bottom surface of the support plate 1, providing a mounting carrier for the first electric actuator 4. The structural constraints of the mounting holes 3 ensure that the first electric actuator 4 is vertically fixed to the bottom surface of the support plate 1. Each mounting hole 3 is located inside a mounting slot 2, and each mounting hole 3 houses a first electric actuator 4. Three second electric actuators 5 are installed inside each mounting slot 2, circumferentially surrounding the outside of the first electric actuator 4. A connecting rod 6 is connected to the output end of each first electric actuator 4 and the output end of each second electric actuator 5. A vacuum suction cup 7 is mounted on the bottom surface of each connecting rod 6. The first electric actuator 4 and the second electric actuator 5 can descend linearly, causing the vacuum suction cup 7 at the bottom of the connecting rod 6 to approach the surface of the target electronic component, ensuring a suitable contact distance between the suction cup and the component surface, and ensuring that the vacuum negative pressure can stably act on the component. The four mounting holes provide more retraction space for the first electric actuator 4, allowing the first electric actuator 4 and the second electric actuator 5 to be vertically staggered, ensuring that the first electric actuator 4 and the second electric actuator 5 can complement each other when working independently. At the same time, the vacuum suction cups 7 of the first electric actuator 4 and the second electric actuator 5 are in the same horizontal plane, thus realizing the coordinated work of the first electric actuator 4 and the second electric actuator 5.

[0027] To better facilitate the movement of the electric actuator structure within space, enabling the adsorption of electronic components for mounting onto a printed circuit board, a support frame 8 is positioned below the support plate 1. Two support frames 9 are connected to the support frame 8, and a planar moving structure is established between the two support frames 9. This planar moving structure includes a first electric slide rail 10 and a second electric slide rail 13. A first electric slide rail 10 is mounted on each support frame 9, and a first sliding block 11 is slidably connected to each first electric slide rail 10. The first electric slide rail 10 is fixed to the support frame 9, and its slidably connected first sliding block 11 is rigidly connected to a connecting plate 12. That is, the two first sliding blocks 11 are connected to the connecting plate 12. The first electric slide rail 10 drives the first sliding block 11 to reciprocate along the length of the slide rail. A second electric slide rail 13 is mounted on the bottom surface of the connecting plate 12, and a second sliding block 14 is slidably connected to the second electric slide rail 13. The bottom surface of the second sliding block 14 is connected to the upper surface of the support plate 1.

[0028] By driving the first sliding block 11, the connecting plate 12, the second electric slide rail 13 and the supporting plate 1 below can be moved longitudinally in sync, providing the vacuum suction cup 7 with longitudinal movement freedom. By driving the second sliding block 14 to reciprocate along the length of the slide rail, the supporting plate 1 and the vacuum suction cup 7 below can be moved laterally in sync, supplementing the adsorption mechanism with lateral movement freedom, ensuring that the vacuum suction cup 7 can accurately align with the feeding position of the electronic component roll and the mounting area of ​​the printed circuit board.

[0029] The roll winding structure includes an electronic component roll and a winding assembly. The electronic component roll encapsulates several electronic components of different types, including resistors, capacitors, integrated circuits, connectors, etc. The electronic component roll in this application adopts a conventional structure, and its structure will not be specifically described in this embodiment.

[0030] When the vacuum suction cup 7 adsorbs electronic components from the electronic component roll, it is necessary to maintain the alignment between the electronic components and the vacuum suction cup 7. Therefore, it is necessary to keep the contact points between the electronic component roll and the vacuum suction cup 7 level and to rewind the blank portion after the electronic component roll has been sucked up. Therefore, two through slots 15 are provided on the upper surface of the carrier frame 8. Each through slot 15 has a carrier strip 16 inside, and a fixing plate 17 is connected to each carrier strip 16. The carrier strip 16 provides a flat and stable adsorption reference surface for the electronic components in the material strip. The width of the carrier strip 16 can be set according to actual needs. In this embodiment, no specific limitation is made to ensure that when the vacuum suction cup 7 adsorbs the electronic components, the electronic components are at a fixed height and in a fixed posture, avoiding adsorption displacement caused by the sagging or shaking of the material strip.

[0031] Meanwhile, considering the different widths of various electronic component rolls and to prevent the material strip from sagging or swaying, two mounting shells 18 and two first motors 22 are respectively connected to the front of the support frame 8. Each mounting shell 18 has a threaded rod 19 rotatably connected inside, and each threaded rod 19 has a moving block 20 threadedly connected to its outer wall. Each moving block 20 is slidably connected inside the mounting shell 18, and each moving block 20 is connected to a moving frame 21. The moving frame 21 cooperates with the fixing plate 17 on the support strip 16. The first motor 22 drives the threaded rod 19, causing the moving block 20 to slide, which can flexibly adjust the distance between the moving frame 21 and the fixing plate 17. This can adapt to electronic component rolls of different widths, forming a customized limiting space. The bottom surface of each moving frame 21 is in contact with the upper surface of the support strip 16, and the ends of the two threaded rods 19 that are far apart from each other are connected to the output end of the first motor 22.

[0032] Two electric telescopic rods 23 are connected to the inner wall of the support frame 8. The electric telescopic rods 23 can adjust the lateral position of the mounting frame 24 and the fixing mechanism 25 through telescopic movement. The spacing between the two sets of fixing mechanisms 25 can be adjusted according to the width of the electronic component roll currently used. This allows the fixing mechanism 25 to maintain precise alignment with the component roll, adapting to the installation and winding requirements of component rolls of different specifications. The output end of each electric telescopic rod 23 is connected to the mounting frame 24. Each mounting frame 24 is equipped with a second motor 26. The output end of each second motor 26 is connected to the fixing mechanism 25. The inner top wall of the support frame 8 is connected to a vertical plate 30. The left and right side walls of the vertical plate 30 are connected to mounting rods 27. The ends of the two mounting rods 27 that are far apart from each other are threaded with limit rings 28. The side wall of the support frame 8 is connected to a controller 29.

[0033] The working principle of this application is as follows: First, unscrew the limiting ring 28 at the end of the mounting rod 27, and place the electronic component roll onto the mounting rods 27 on both sides of the vertical plate 30. Then, tighten the limiting ring 28 to fix the component roll. Subsequently, pull out the material strip of the electronic component roll, let it pass through the bearing strip 16 in the through groove 15 of the bearing frame 8, pull it down and fix it on the fixing mechanism 25. With two sets of mounting rods 27 and two sets of fixing mechanisms 25, electronic component rolls of different specifications can be pre-loaded, eliminating the need for frequent machine stops for replacement and improving continuous production efficiency. The first motor 22 is started through the controller 29, and the output end of the first motor 22 drives the mounting shell 18. The internal threaded rod 19 rotates. When the threaded rod 19 rotates, the movable block 20 connected to the outer wall thread slides along the inside of the mounting shell 18, thereby driving the movable frame 21 on the movable block 20 to move synchronously. According to the width of the electronic component roll currently used, the distance between the movable frame 21 and the fixed plate 17 on the carrier strip 16 is adjusted to form a precise limit, avoiding deviation during the conveying of the material belt. The circuit board to be processed is placed on the carrier frame 8, the first electric slide rail 10 runs, driving the first sliding block 11 to move along the slide rail direction, thereby driving the lower carrier plate 1 to achieve longitudinal position adjustment through the connecting plate 12. At the same time, the connecting plate The second electric slide rail 13 on the bottom surface of the 12 drives the second sliding block 14 to move, thereby adjusting the lateral position of the support plate 1. This allows the support plate 1 to move precisely above the feeding position of the component roll. When adsorbing small electronic components, the first electric push rod 4 extends, causing the vacuum suction cup 7 at the bottom of the connecting rod 6 to protrude from the other suction cups. At the same time, the second electric push rod 5 in the mounting groove 2 retracts, causing the remaining vacuum suction cups 7 to retract. The protruding vacuum suction cup 7 adsorbs the target component through the principle of vacuum negative pressure. When adsorbing large electronic components, the first electric push rod 4 retracts, and the second electric push rod 5 extends. After adsorbing the component, the first electric slide rail 10 and the second electric push rod 5 retract. The sliding rail 13 moves again to move the carrier plate 1 to the designated mounting position of the printed circuit board. The printed circuit board is placed on the upper end of the carrier frame 8. The printed circuit board can be fixed to the carrier frame 8 by opening a corresponding groove on the carrier frame 8 or by magnetic attraction. In this embodiment, there is no specific limitation on the fixing method of the printed circuit board. The first electric push rod 4 or the second electric push rod 5 adjusts the height according to the mounting requirements to complete the component mounting. Then, the controller 29 starts the second motor 26. The second motor 26 drives the fixing mechanism 25 to rotate and uniformly wind up the empty material tape that has been adsorbed with the components.

[0034] The above descriptions are merely embodiments of this application. Commonly known structures and characteristics of the solutions are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the filing date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this application. These should also be considered within the scope of protection of this application, and will not affect the effectiveness of the implementation of this application or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An adjustable nozzle patch applicator, characterized in that, The device includes a support plate, the bottom surface of which has four mounting slots and four mounting holes. Each mounting hole is located inside a mounting slot, and a first electric actuator is installed inside each mounting hole. Three second electric actuators are installed inside each mounting slot. The output ends of each first and second electric actuator are connected to a connecting rod, and a vacuum suction cup is installed on the bottom surface of each connecting rod.

2. The adjustable nozzle patching device according to claim 1, characterized in that, A support frame is provided below the support plate, and two support frames are connected to the support frame. Each support frame is equipped with a first electric slide rail, and a first sliding block is slidably connected to each first electric slide rail.

3. The adjustable nozzle patch device according to claim 2, characterized in that, A connecting plate is connected to both of the first sliding blocks. A second electric slide rail is installed on the bottom surface of the connecting plate. A second sliding block is slidably connected to the second electric slide rail. The bottom surface of the second sliding block is connected to the upper surface of the support plate.

4. The adjustable nozzle patch applicator according to claim 3, characterized in that, The upper surface of the support frame has two through slots, each through slot is provided with a support strip, and each support strip is connected to a fixing plate.

5. The adjustable nozzle patch device according to claim 4, characterized in that, The front of the support frame is connected to two mounting shells and two first motors respectively. Each mounting shell has a threaded rod rotatably connected inside, and each threaded rod has a moving block threadedly connected to its outer wall. Each moving block is slidably connected inside the mounting shell.

6. The adjustable nozzle patching device according to claim 5, characterized in that, Each of the movable blocks is connected to a movable frame, the bottom surface of each movable frame is in contact with the upper surface of the bearing bar, and the ends of the two threaded rods that are far apart from each other are connected to the output end of the first motor.

7. The adjustable nozzle patch device according to claim 6, characterized in that, The inner wall of the support frame is connected to two electric telescopic rods. The output end of each electric telescopic rod is connected to a mounting bracket. A second motor is installed on each mounting bracket. The output end of each second motor is connected to a fixing mechanism.

8. The adjustable nozzle patching device according to claim 7, characterized in that, The inner top wall of the support frame is connected to a vertical plate, and the left and right side walls of the vertical plate are connected to mounting rods. The ends of the two mounting rods that are far apart from each other are threaded with limit rings. The side wall of the support frame is connected to a controller.

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