Printed circuit board placing machine transmission structure

Abstract

The utility model relates to the technical field of printed circuit boards, and discloses a printed circuit board placing machine transmission structure which comprises a material storage shell, movable holes are formed in the inner walls, oppositely arranged, of the two sides of the material storage shell correspondingly, and a set of conveying rollers are rotationally installed on the inner walls, located in the two movable holes, of the material storage shell correspondingly. The outer wall of each set of conveying rollers is sleeved with a conveying chain plate in a tensioning mode, multiple sets of supporting strips are fixedly installed on the outer wall of each set of conveying chain plate, the two sets of conveying rollers are provided with oppositely-rotating driving mechanisms, an installation mechanism is arranged at the lower end of the storage shell, and the storage shell is installed on the outer wall of the conveying rack through the installation mechanism. According to the material storage device, the conveying chain plate is arranged in the material storage shell, then a worker places a circuit board into the material storage shell, the circuit board is located on the supporting strip on the conveying chain plate, then the supporting strip is driven to operate under cooperation of the driving mechanism, the circuit board in the material storage shell can be discharged and placed conveniently, cost is low, material storage and board placing are combined, the number of independent material storage positions is reduced, and operation steps are reduced.

Description

Technical Field

[0001] This application relates to the field of printed circuit board technology, specifically to a transmission structure for a printed circuit board unloading machine. Background Technology

[0002] Printed circuit board (PCB) unloading machines are a conveying and placement mechanism used in the electronics manufacturing industry. They typically use a conveyor belt for lateral transport or work in conjunction with a robotic arm as the transmission structure to facilitate the unloading of PCBs.

[0003] Currently, printed circuit boards are placed in a fixed position, and then a robotic arm is equipped with a suction cup and multiple sets of axial rotation mechanisms. This allows the suction cup to pick up the circuit board and rotate to adjust the angle, placing the printed circuit board in the processing position or on a conveyor belt for transport, thus playing the role of placing the board. However, the cost of the multiple axial power mechanisms of the robotic arm is relatively high, and the process of the robotic arm picking up or clamping the printed circuit board for placement is quite cumbersome. Utility Model Content

[0004] The purpose of this application is to provide a transmission structure for a printed circuit board (PCB) unloading machine, which solves the problem in the prior art where the PCB is placed in a fixed position, and then a robot arm is equipped with a suction cup and multiple sets of axial rotation mechanisms to facilitate the suction cup to pick up the PCB and rotate to adjust the angle, so as to place the PCB on the processing position or conveyor belt for transportation, thereby playing the role of unloading the board. However, the robot arm with multiple axial power mechanisms is costly, and the steps of picking up or clamping the PCB for unloading are relatively cumbersome.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This application provides a transmission structure for a printed circuit board unloading machine, including a storage shell. Movable holes are respectively opened on the inner walls of the storage shell on both sides. A set of conveying rollers is rotatably installed on the inner walls of the storage shell located inside the two movable holes. A conveying chain plate is tensioned and sleeved on the outer wall of each set of conveying rollers. Multiple sets of support bars are fixedly installed on the outer wall of each set of conveying chain plates. The two sets of conveying rollers are provided with opposing rotation drive mechanisms. An installation mechanism is provided at the lower end of the storage shell, and a guide plate mechanism is provided at the upper end of the storage shell.

[0007] By adopting the above technical solution, the storage shell is installed on the outer wall of the conveyor frame through the installation mechanism. Then, the operator places the circuit board inside the storage shell. The circuit board is located on the support bar on the conveyor chain plate. Then, with the cooperation of the drive mechanism, the support bar is driven to move, which facilitates the unloading and placement of the circuit board inside the storage shell. The cost is low, and the combination of storage and unloading reduces the number of separate storage positions and operation steps.

[0008] Optionally, the guide plate mechanism includes two side limiting plates welded to the upper end of the storage shell, each of the side limiting plates being located above the movable hole.

[0009] By adopting the above technical solution, the storage material can fix the side limiting plate, and the side limiting plate can limit the circuit board.

[0010] Optionally, the same inclined plate is welded to one side of each of the two side limiting plates, and the inclined plate is welded to the upper end of the storage shell.

[0011] By adopting the above technical solution, the side limiting plate and the storage shell can fix the inclined plate, while the inclined plate can guide the circuit board to slide down.

[0012] Optionally, the installation mechanism includes lugs fixedly installed on both sides of the storage shell, with a connecting bracket welded to the lower end of each set of lugs, and an installation hole provided on the outer wall of each connecting bracket.

[0013] By adopting the above technical solution, the storage shell can fix the lugs, which in turn can fix the connecting brackets. The mounting holes on the connecting brackets allow workers to easily fix the conveyor frame to the outer wall with bolts.

[0014] Optionally, the drive mechanism includes a stepper motor fixedly mounted on the outer wall of the storage shell, and the output shaft of the stepper motor is fixedly connected to one of the conveying rollers.

[0015] By adopting the above technical solution, the storage shell can fix the stepper motor, and the stepper motor can drive the conveyor roller to rotate.

[0016] Optionally, a drive gear is fixedly mounted on the side of one of the conveying rollers away from the stepper motor, and a driven gear is rotatably mounted on the outer wall of the storage shell, the driven gear meshing with the drive gear.

[0017] By adopting the above technical solution, the rotation of one of the conveying rollers can drive the drive gear to rotate, and the drive gear can drive the driven gear to rotate.

[0018] Optionally, the driven gear is welded to the outer wall of a driving pulley, and another set of conveying rollers is fixedly connected to a driven pulley. The driven pulley and the driving pulley are tensioned with belts on their outer walls.

[0019] By adopting the above technical solution, the driven gear can drive the active pulley to rotate, and the active pulley can drive the driven pulley to rotate with the belt. Then, with the cooperation of the active gear and the driven gear, the two conveying rollers can be easily rotated in opposite directions.

[0020] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0021] The technical solution of this application uses an installation mechanism to install the storage shell on the outer wall of the conveyor frame. Then, the operator places the circuit board inside the storage shell. The circuit board is located on the support bar on the conveyor chain plate. Then, with the cooperation of the drive mechanism, the support bar is driven to move, which facilitates the unloading and placement of the circuit board inside the storage shell. It has a low cost and combines storage and placement, reducing the need for separate storage positions and operation steps. Attached Figure Description

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is an axial view schematic diagram of the transmission structure of a printed circuit board unloading machine according to this application;

[0024] Figure 2 This is a right sectional view of the transmission structure of a printed circuit board unloading machine according to this application;

[0025] Figure 3 This is a right-side schematic diagram of the transmission structure of a printed circuit board unloading machine according to this application;

[0026] Figure 4 This application discloses a transmission structure for a printed circuit board (PCB) unloading machine. Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 This is a bottom view schematic diagram of the transmission structure of a printed circuit board unloading machine according to this application.

[0028] In the diagram: 1. Storage shell; 2. Movable hole; 3. Conveyor roller; 4. Conveyor chain plate; 5. Support bar; 6. Drive gear; 7. Driven gear; 8. Drive pulley; 9. Belt; 10. Side limiting plate; 11. Inclined plate; 12. Lug; 13. Connecting bracket; 14. Mounting hole; 15. Stepper motor; 16. Driven pulley. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5This application provides a technical solution: a transmission structure for a printed circuit board unloading machine, including a storage shell 1, with movable holes 2 respectively opened on the inner walls of the storage shell 1 on both sides, and a set of conveying rollers 3 rotatably installed on the inner walls of the storage shell 1 located inside the two movable holes 2, with a conveying chain plate 4 tensioned and sleeved on the outer wall of each set of conveying rollers 3, and multiple sets of support bars 5 fixedly installed on the outer wall of each set of conveying chain plates 4, with a driving mechanism for the two sets of conveying rollers 3 rotating in opposite directions, an installation mechanism at the lower end of the storage shell 1, and a guide plate mechanism at the upper end of the storage shell 1;

[0031] In the technical solution of this application, the storage shell 1 is installed on the outer wall of the conveyor frame by the installation mechanism. Then, the operator places the circuit board into the storage shell 1. The circuit board is located on the support bar 5 on the conveyor chain plate 4. Then, with the cooperation of the drive mechanism, the support bar 5 is driven to run, which facilitates the unloading and placement of the circuit board inside the storage shell 1. The cost is low, and the storage and placement are combined, reducing the number of separate storage positions and operation steps.

[0032] In the technical solution of this application, such as Figures 1-4 As shown, the drive mechanism includes a stepper motor 15 fixedly mounted on the outer wall of the storage shell 1. The output shaft of the stepper motor 15 is fixedly connected to one of the conveying rollers 3. The storage shell 1 can fix the stepper motor 15, and the stepper motor 15 can drive the conveying roller 3 to rotate. A drive gear 6 is fixedly mounted on the side of one of the conveying rollers 3 away from the stepper motor 15. A driven gear 7 is rotatably mounted on the outer wall of the storage shell 1. The driven gear 7 meshes with the drive gear 6. The rotation of one of the conveying rollers 3 can drive the drive gear 6 to rotate, and the drive gear 6 can drive the driven gear 7 to rotate. A drive pulley 8 is welded to the outer wall of the driven gear 7. Another set of conveying rollers 3 is fixedly connected to a driven pulley 16. A belt 9 is tensioned and fitted on the outer wall of the driven pulley 16 and the drive pulley 8. The rotation of the driven gear 7 can drive the drive pulley 8 to rotate, and the drive pulley 8 can drive the driven pulley 16 to rotate with the belt 9. Then, with the cooperation of the drive gear 6 and the driven gear 7, the two conveying rollers 3 can rotate in opposite directions.

[0033] In the technical solution of this application, such as Figure 1 As shown, the installation mechanism includes lugs 12 fixedly installed on both sides of the storage shell 1. Each lug 12 has a connecting bracket 13 welded to its lower end. Each connecting bracket 13 has an installation hole 14 on its outer wall. The storage shell 1 can fix the lugs 12, and the lugs 12 can fix the connecting brackets 13. The installation holes 14 on the connecting brackets 13 can be used by workers to fix the conveyor frame to the outer wall with bolts.

[0034] In the technical solution of this application, such as Figure 2As shown, the guide plate mechanism includes two side limiting plates 10 welded to the upper end of the storage shell 1. Each side limiting plate 10 is located above the movable hole 2. The storage can fix the side limiting plate 10, and the side limiting plate 10 can limit the circuit board. The same inclined plate 11 is welded to one side of the two side limiting plates 10. The inclined plate 11 is welded to the upper end of the storage shell 1. The side limiting plates 10 and the storage shell 1 can fix the inclined plate 11, and the inclined plate 11 can guide the circuit board to slide down.

[0035] In use, the circuit board can be easily fixed to the external equipment conveying mechanism by bolts through the mounting holes 14 on the connecting bracket 13. Then, the circuit board can be manually loaded into the storage shell 1 by the operator, or it can be transported into the storage shell 1 with the help of the external conveyor belt 9. The external equipment conveyor belt 9 can be set above the side away from the inclined plate 11. The side limit plate 10 can limit the circuit board, and the inclined plate 11 can guide the incoming circuit board to slide down. The incoming circuit board can fall above each set of support bars 5. The support bars 5 can overlap the circuit board. The conveyor rollers 3 inside the two sets of conveyor chain plates 4 can run in opposite directions with the cooperation of the driving gear 6, driven gear 7, driving pulley 8, driven pulley 16 and belt 9. The stepper motor 15 drives the conveyor rollers 3 to rotate, which facilitates the movement of the support bars 5 to move the circuit board down for placement. Its cost is lower than that of a robot, and it reduces the number of individual storage positions and operation steps.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A transmission structure for a printed circuit board (PCB) unloading machine, characterized in that: The storage shell (1) includes a storage shell (1), and the inner walls of the storage shell (1) on both sides are respectively provided with movable holes (2). The inner walls of the storage shell (1) located inside the two movable holes (2) are respectively rotatably installed with a set of conveying rollers (3). The outer walls of each set of conveying rollers (3) are respectively tensioned and sleeved with conveying chain plates (4). The outer walls of each set of conveying chain plates (4) are respectively fixedly installed with multiple sets of support bars (5). The two sets of conveying rollers (3) are provided with a driving mechanism for opposing rotation. The lower end of the storage shell (1) is provided with an installation mechanism, and the upper end of the storage shell (1) is provided with a guide plate mechanism.

2. The transmission structure of a printed circuit board unloading machine according to claim 1, characterized in that, The guide plate mechanism includes two side limiting plates (10) welded to the upper end of the storage shell (1), each of the side limiting plates (10) being located above the movable hole (2).

3. The transmission structure of a printed circuit board unloading machine according to claim 2, characterized in that, The same inclined plate (11) is welded to one side of the two side limiting plates (10), and the inclined plate (11) is welded to the upper end of the storage shell (1).

4. The transmission structure of a printed circuit board unloading machine according to claim 1, characterized in that, The installation mechanism includes lugs (12) fixedly installed on both sides of the storage shell (1). Each lug (12) has a connecting bracket (13) welded to its lower end. Each connecting bracket (13) has an installation hole (14) on its outer wall.

5. The transmission structure of a printed circuit board unloading machine according to claim 1, characterized in that, The drive mechanism includes a stepper motor (15) fixedly installed on the outer wall of the storage shell (1), and the output shaft of the stepper motor (15) is fixedly connected to one of the conveying rollers (3).

6. The transmission structure of a printed circuit board unloading machine according to claim 5, characterized in that, One of the conveying rollers (3) is fixedly mounted with a drive gear (6) on the side away from the stepper motor (15), and a driven gear (7) is rotatably mounted on the outer wall of the storage shell (1), and the driven gear (7) meshes with the drive gear (6).

7. The transmission structure of a printed circuit board unloading machine according to claim 6, characterized in that, The driven gear (7) is welded to the outer wall of the driving pulley (8), and another set of the conveying rollers (3) is fixedly connected to the driven pulley (16). The driven pulley (16) and the outer wall of the driving pulley (8) are tensioned with a belt (9).

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