A mold for improving forming precision of a PCB with inner slot

Abstract

The application relates to the technical field of PCB (Printed Circuit Board) and discloses a die for improving forming precision of a PCB with an inner groove, which comprises a workbench, a pressing and cutting groove is formed in the upper side of the workbench, a lifting plate is slidably connected to the inner wall of the workbench in the pressing and cutting groove, a U-shaped frame is fixedly installed at the lower end of the workbench, two groups of hydraulic rods are fixedly installed at the upper end of the U-shaped frame, a top plate and a pressing and cutting die seat driven by a first electric push rod are arranged below the pressing and cutting groove of the workbench, the lifting plate and a spring buffering structure are matched, the lifting plate is lifted out of the pressing and cutting die seat and reset to the surface of the workbench under the cooperation of the hydraulic rods and the spring after pressing and cutting is completed, the PCBs reset to the holes in the long plate will be carried when the long plate continuously conveys, manual taking is avoided, the efficiency is lowered, the PCBs are prevented from directly falling from the pressing and cutting groove and the problems of material jamming and damage of the PCBs during discharging are avoided, part of impact force can be absorbed by the spring buffering, the damage risk is further lowered, the pressing and cutting efficiency and the finished product quality are effectively improved.

Description

Technical Field

[0001] This application relates to the field of PCB board technology, specifically a mold for improving the forming accuracy of PCB boards with internal grooves. Background Technology

[0002] Molds that improve the forming precision of PCBs with inner grooves are key equipment in the electronics manufacturing industry. They are specifically used for the separation processing of micro-electronic components such as mobile phone motherboards and memory cards. Their core function is to divide long, continuous boards (containing multiple repeating PCB units and pre-processed inner grooves) into independent units through high-precision mechanical cutting. At the same time, they refine the dimensions of the inner grooves to ensure that there are no burrs at the corners and that the dimensional deviation is ≤±0.05mm, meeting the PCB reliability requirements of high-end fields such as 5G equipment and automotive electronics.

[0003] Currently, when cutting long PCBs in a continuous strip, the cut PCBs need to be picked up and collected after cutting, or dropped directly from the cutting groove. However, picking up the PCBs reduces cutting efficiency and increases the workload of the workers. Dropping the PCBs from the cutting groove may cause the PCBs to get stuck in the cutting groove or be damaged during the unloading process. Utility Model Content

[0004] The purpose of this application is to provide a mold that improves the forming accuracy of PCB boards with inner grooves. This solves the problems mentioned in the background art, where after pressing and cutting long boards, the pressed and cut PCB boards need to be picked up and collected, or dropped directly from the pressing and cutting groove. Picking up the PCB boards reduces the pressing and cutting efficiency and increases the workload of the workers. Dropping the PCB boards from the pressing and cutting groove may cause the PCB boards to get stuck in the pressing and cutting groove, or damage the PCB boards during unloading.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This application provides a mold for improving the forming accuracy of PCB boards with internal grooves, including a worktable. A cutting groove is formed on the upper side of the worktable. A lifting plate is slidably connected to the inner wall of the worktable inside the cutting groove. A U-shaped frame is fixedly installed at the lower end of the worktable. Two sets of hydraulic rods are fixedly installed at the upper end of the U-shaped frame. The telescopic ends of the two sets of hydraulic rods are fixedly installed to the lifting plate. Springs are respectively sleeved on the outer walls of the two hydraulic rods. The two ends of the two springs are respectively fixedly installed to the U-shaped frame and the lifting plate. Two first electric push rods are fixedly installed at the lower end of the worktable on both sides of the U-shaped frame. The telescopic ends of the two first electric push rods slide through the worktable. The telescopic ends of the two first electric push rods are fixedly installed to the same top plate. A cutting mold base is fixedly installed at the lower end of the top plate. A guiding conveying mechanism is provided on one side of the worktable, and two sets of PCB board pressing and conveying mechanisms are provided at the upper end of the worktable.

[0006] By adopting the above technical solution, a top plate and a cutting die base driven by a first electric push rod are set below the cutting groove of the worktable. With the help of a lifting plate and a spring buffer structure, after the cutting is completed, the lifting plate pushes the cut PCB board out and resets it to the worktable surface under the cooperation of hydraulic rod and spring. When the long board continues to be conveyed, it will drive the PCB board reset to the hole of the long board, avoiding manual handling and reducing efficiency. At the same time, it prevents the PCB board from falling directly from the cutting groove, which may cause jamming or damage during unloading. In addition, the spring buffer can absorb part of the impact force, further reducing the risk of damage, and effectively improving the cutting efficiency and the quality of the finished product.

[0007] Optionally, the guiding and conveying mechanism includes a waste board guide frame fixedly installed on one side of the workbench.

[0008] By adopting the above technical solution, the workbench can fix the waste board guide frame, and the waste board guide frame can guide and feed the continuous long board frames after pressing and cutting.

[0009] Optionally, a PCB board guide plate is fixedly installed on the outer wall of the workbench located below the waste board guide frame, and the PCB board guide plate is inclined.

[0010] By adopting the above technical solution, the workbench can fix the PCB board guide plate, and the PCB board guide plate can guide and transport the PCB boards that have been rejected from the waste board guide frame.

[0011] Optionally, the pressing and conveying mechanism includes two movable slots opened on the side of the workbench, and the two movable slots are respectively located on both sides of the pressing and cutting slot. Conveying rollers are rotatably installed on the inner wall of the workbench located inside the two movable slots.

[0012] By adopting the above technical solution, the movable groove can be used to store the conveyor roller, while the worktable can provide rotational support for the conveyor roller.

[0013] Optionally, two pulleys are rotatably mounted on the outer wall of the worktable. The two pulleys are fixedly mounted to corresponding conveyor rollers. The outer walls of the two pulleys are tensioned with the same belt. A stepper motor is mounted on the outer wall of the worktable away from the pulleys. The output shaft of the stepper motor is fixedly mounted to one of the conveyor rollers.

[0014] By adopting the above technical solution, a stepper motor can drive one of the conveyor rollers to rotate, while the other conveyor roller is driven to rotate by the belt and pulley. This facilitates the linkage of the two conveyor rollers to transport the continuous long plates.

[0015] Optionally, U-shaped blocks are fixedly installed on the upper ends of the worktables located on both sides of the corresponding movable groove. A second electric push rod is fixedly installed on the upper end of each group of U-shaped blocks. The telescopic end of each second electric push rod slides through the U-shaped block. A lifting block is fixedly installed on the telescopic end of each second electric push rod. The same pressure roller is rotatably installed on the inner wall of each group of lifting blocks.

[0016] By adopting the above technical solution, the workbench can fix the U-shaped block, the U-shaped block can fix the second electric push rod, the second electric push rod can drive the lifting block to move vertically, and each lifting block can move the pressure roller vertically. The lifting block can support the rotation of the pressure roller, and when the pressure roller presses the continuous long plate, it can rotate under the action of friction.

[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows: The technical solution of this application sets a top plate and a cutting die base driven by a first electric push rod below the cutting groove of the worktable. With the help of a lifting plate and a spring buffer structure, after the cutting is completed, the lifting plate pushes the cut PCB board out and resets it to the surface of the worktable under the cooperation of hydraulic rod and spring. When the long board continues to be conveyed, it will drive the PCB board reset to the hole of the long board, avoiding manual handling and reducing efficiency. At the same time, it prevents the PCB board from falling directly from the cutting groove, which may cause jamming or damage during unloading. In addition, the spring buffer can absorb part of the impact force, further reducing the risk of damage, and effectively improving the cutting efficiency and the quality of the finished product. Attached Figure Description

[0018] 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: Figure 1This is an axial view schematic diagram of a mold for improving the forming accuracy of a PCB board with an inner groove according to this application; Figure 2 This application relates to a mold for improving the forming accuracy of PCB boards with internal grooves. Figure 1 Enlarged view of point A in the middle; Figure 3 This application relates to a mold for improving the forming accuracy of PCB boards with internal grooves. Figure 1 Enlarged view at point B in the middle; Figure 4 This is a left-side schematic diagram of a mold for improving the forming accuracy of a PCB board with an inner groove, according to this application.

[0019] In the diagram: 1. Workbench; 2. Cutting groove; 3. Lifting plate; 4. U-shaped frame; 5. Hydraulic rod; 6. Spring; 7. First electric push rod; 8. Top plate; 9. Cutting die base; 10. Movable groove; 11. Conveyor roller; 12. Pulley; 13. Belt; 14. Stepper motor; 15. U-shaped block; 16. Second electric push rod; 17. Lifting block; 18. Pressure roller; 19. Waste board guide frame; 20. PCB board guide plate. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 This application provides a technical solution: a mold for improving the forming accuracy of PCB boards with inner grooves, including a worktable 1, a cutting groove 2 is provided on the upper side of the worktable 1, a lifting plate 3 is slidably connected to the inner wall of the worktable 1 located inside the cutting groove 2, a U-shaped frame 4 is fixedly installed at the lower end of the worktable 1, two sets of hydraulic rods 5 are fixedly installed at the upper end of the U-shaped frame 4, the telescopic ends of the two sets of hydraulic rods 5 are fixedly installed with the lifting plate 3, springs 6 are respectively sleeved on the outer wall of the two hydraulic rods 5, and the two ends of the two springs 6 are respectively fixedly installed with the U-shaped frame 4 and the lifting plate 3, two first electric push rods 7 are fixedly installed at the lower end of the worktable 1 located on both sides of the U-shaped frame 4, the telescopic ends of the two first electric push rods 7 slide through the worktable 1, the telescopic ends of the two first electric push rods 7 are fixedly installed with the same top plate 8, a cutting mold base 9 is fixedly installed at the lower end of the top plate 8, a guide conveying mechanism is provided on one side of the worktable 1, and two sets of PCB board pressing and conveying mechanisms are provided at the upper end of the worktable 1; In the technical solution of this application, a top plate 8 driven by a first electric push rod 7 and a cutting die base 9 are set below the cutting groove 2 of the workbench 1. With the help of the lifting plate 3 and the spring 6 buffer structure, after the cutting is completed, the lifting plate 3, with the help of the hydraulic rod 5 and the spring 6, pushes the cut PCB board out and resets it to the surface of the workbench 1. When the continuous long board continues to be conveyed, it will drive the PCB board reset to the hole of the continuous long board, avoiding manual handling and reducing efficiency. At the same time, it prevents the PCB board from falling directly from the cutting groove 2, causing jamming or damage during unloading. In addition, the spring 6 buffer can absorb part of the impact force, further reducing the risk of damage, and effectively improving the cutting efficiency and the quality of the finished product.

[0022] In the technical solution of this application, such as Figure 1 , Figure 2 and Figure 4 As shown, the pressing and conveying mechanism includes two movable slots 10 on the upper side of the workbench 1, and the two movable slots 10 are respectively located on both sides of the pressing and cutting slot 2. Conveying rollers 11 are rotatably installed on the inner wall of the workbench 1 inside the two movable slots 10. The movable slots 10 can store the conveying rollers 11, and the workbench 1 can provide rotational support for the conveying rollers 11. Two pulleys 12 are rotatably installed on the outer wall of the workbench 1, and the two pulleys 12 are fixedly installed with the corresponding conveying rollers 11. The outer wall of the two pulleys 12 is tensioned with the same belt 13. A stepper motor 14 is installed on the outer wall of the workbench 1 away from the pulleys 12. The output shaft of the stepper motor 14 is fixedly installed with one of the conveying rollers 11. The stepper motor 14 can drive one of the conveying rollers 11 to rotate, and the other conveying roller 11 is driven to rotate under the cooperation of the belt 13 and the pulley 12, so that the two conveying rollers 11 can rotate in conjunction to convey the continuous long plate. U-shaped blocks 15 are fixedly installed on the upper ends of the worktables 1 on both sides of the corresponding movable groove 10. A second electric push rod 16 is fixedly installed on the upper end of each set of U-shaped blocks 15. The telescopic end of each second electric push rod 16 slides through the U-shaped block 15. A lifting block 17 is fixedly installed on the telescopic end of each second electric push rod 16. The same pressure roller 18 is rotatably installed on the inner wall of each set of lifting blocks 17. The worktable 1 can fix the U-shaped blocks 15, and the U-shaped blocks 15 can fix the second electric push rods 16. The second electric push rods 16 can drive the lifting blocks 17 to move vertically, and each set of lifting blocks 17 can move the pressure roller 18 vertically. The lifting blocks 17 can provide rotational support for the pressure roller 18. When the pressure roller 18 presses the continuous long plate, it can rotate under the action of friction.

[0023] In the technical solution of this application, such as Figure 1As shown, the guiding and conveying mechanism includes a waste board guide frame 19 fixedly installed on one side of the workbench 1. The workbench 1 can fix the waste board guide frame 19, and the waste board guide frame 19 can guide and feed the long boards after pressing and cutting. A PCB board guide plate 20 is fixedly installed on the outer wall of the workbench 1 below the waste board guide frame 19, and the PCB board guide plate 20 is inclined. The workbench 1 can fix the PCB board guide plate 20, and the PCB board guide plate 20 can guide and convey the PCB boards that have been selected from the waste board guide frame 19.

[0024] In use, the continuous long plate is placed on the surface of the workbench 1. The stepper motor 14 starts and drives one of the conveyor rollers 11 to rotate. Through the linkage of the belt 13 and the pulley 12, the two conveyor rollers 11 rotate synchronously, conveying the continuous long plate to the top of the cutting groove 2. At this time, the second electric push rod 16 drives the lifting block 17 to drive the pressure roller 18 to press down, so that the continuous long plate is in close contact with the surface of the workbench 1 to ensure cutting stability. The hydraulic rod 5 drives the lifting plate 3 to rise, which works with the top plate 8 and the cutting die base 9 to complete the inner groove cutting. During the cutting process, the cutting... The mold base 9 cuts the continuous long plate. The cut PCB board will descend into the inner wall of the worktable 1 with the lifting plate 3. After the cutting is completed, the lifting plate 3 will push the PCB board out and reset it into the hole of the continuous long plate under the cooperation of the hydraulic rod 5 and the spring 6. The conveying roller 11 continues to rotate and drives the continuous long plate to move, so that the cut PCB board is synchronously conveyed to the next station with the continuous long plate. The waste material of the cut continuous long plate is discharged through the waste board guide frame 19, and the PCB board slides down to the collection device through the inclined PCB board guide plate 20.

[0025] 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.

[0026] 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 mold for improving the forming accuracy of PCB boards with inner grooves, characterized in that: The system includes a workbench (1), on the upper side of which a cutting groove (2) is provided. A lifting plate (3) is slidably connected to the inner wall of the workbench (1) inside the cutting groove (2). A U-shaped frame (4) is fixedly installed at the lower end of the workbench (1). Two sets of hydraulic rods (5) are fixedly installed at the upper end of the U-shaped frame (4). The telescopic ends of the two sets of hydraulic rods (5) are fixedly installed with the lifting plate (3). Springs (6) are respectively sleeved on the outer walls of the two hydraulic rods (5). The two ends of the two springs (6) are respectively connected to the U-shaped frame (4). The worktable (1) and lifting plate (3) are fixedly installed. Two first electric push rods (7) are fixedly installed at the lower end of the worktable (1) located on both sides of the U-shaped frame (4). The telescopic ends of the two first electric push rods (7) slide through the worktable (1). The telescopic ends of the two first electric push rods (7) are fixedly installed on the same top plate (8). The lower end of the top plate (8) is fixedly installed with a pressure cutting die seat (9). A guide conveying mechanism is provided on one side of the worktable (1). Two sets of PCB board pressing and conveying mechanisms are provided at the upper end of the worktable (1).

2. The mold for improving the forming accuracy of PCB boards with inner grooves according to claim 1, characterized in that, The guiding and conveying mechanism includes a waste board guide frame (19) fixedly installed on one side of the workbench (1).

3. A mold for improving the forming accuracy of PCB boards with inner grooves according to claim 2, characterized in that, A PCB board guide plate (20) is fixedly installed on the outer wall of the workbench (1) located below the waste board guide frame (19), and the PCB board guide plate (20) is inclined.

4. A mold for improving the forming accuracy of PCB boards with inner grooves according to claim 1, characterized in that, The pressing and conveying mechanism includes two movable slots (10) opened on the upper side of the workbench (1), and the two movable slots (10) are respectively located on both sides of the pressing and cutting slot (2). Conveying rollers (11) are rotatably installed on the inner wall of the workbench (1) located inside the two movable slots (10).

5. A mold for improving the forming accuracy of a PCB board with an inner groove according to claim 4, characterized in that, Two pulleys (12) are rotatably mounted on the outer wall of the workbench (1). The two pulleys (12) are fixedly mounted to the corresponding conveyor rollers (11). The outer walls of the two pulleys (12) are tensioned with the same belt (13). A stepper motor (14) is mounted on the outer wall of the workbench (1) away from the pulleys (12). The output shaft of the stepper motor (14) is fixedly mounted to one of the conveyor rollers (11).

6. A mold for improving the forming accuracy of a PCB board with an inner groove according to claim 5, characterized in that, U-shaped blocks (15) are fixedly installed on the upper ends of the worktables (1) located on both sides of the corresponding active groove (10). A second electric push rod (16) is fixedly installed on the upper end of each group of U-shaped blocks (15). The telescopic end of each second electric push rod (16) slides through the U-shaped block (15). A lifting block (17) is fixedly installed on the telescopic end of each second electric push rod (16). The same pressure roller (18) is rotatably installed on the inner wall of each group of lifting blocks (17).

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