Shielding glue laminating tool for PCB (printed circuit board)

Abstract

The utility model relates to a jig for bonding shielding glue on a PCB (Printed Circuit Board), which comprises a working table, a movable seat is arranged on the working table in a sliding manner, a placing plate is fixedly arranged on the movable seat, a feeding conveying belt is fixedly arranged on one side of the working table, a fixed frame is fixedly arranged on the working table, and a three-axis movable platform is arranged at the bottom of the right side of the fixed frame. A vacuum suction cup is fixedly arranged at the bottom of the three-axis moving platform, an electric telescopic rod is fixedly installed in the middle of the fixing frame, a heating plate is arranged at the bottom of the electric telescopic rod, a hydraulic rod is fixedly arranged at the left end of the fixing frame, and a pressing plate is arranged at the bottom of the hydraulic rod. The PCB is accurately covered with the shielding adhesive film, then the PCB is heated through the heating plate, so that the PCB and all parts of the shielding adhesive film on the surface of the PCB are the same in hardness, finally, pressure is applied through the pressing plate, it is ensured that no bubble exists between the circuit board and the shielding adhesive film, and the attaching effect is improved.

Description

Technical Field

[0001] The utility model relates to a shielding glue laminating tool for a PCB board, belonging to the technical field of PCB board lamination. Background Art

[0002] The electromagnetic shielding film, abbreviated as electromagnetic film, is generally composed of multiple layers of materials pasted together. It is a shielding material for preventing electromagnetic interference and has a strong protective effect on the PCB. It has high flexibility, high drought tolerance, electromagnetic shielding property, etc. It can exert excellent characteristics under the condition of extremely strict requirements for the bending radius. In the traditional process, when attaching the electromagnetic film, first heat the electromagnetic film with a soldering iron and then fix it to the surface of the PCB board. The existing lamination device heats the electromagnetic film unevenly, and during the lamination process of the electromagnetic film, due to the uneven heating of the electromagnetic film, the softness and hardness of each part are different. When laminating with the electromagnetic film, air bubbles are likely to be generated at the lamination area of the hard part between the circuit board and the electromagnetic film, reducing the quality of the circuit board and affecting the subsequent use effect of the PCB board. Content of the Utility Model

[0003] Aiming at the problems in the related technology, the utility model provides a shielding glue laminating tool for a PCB board to overcome the above-mentioned technical problems existing in the existing related technology.

[0004] For this reason, the specific technical solution adopted by the utility model is as follows:

[0005] A shielding glue laminating tool for a PCB board includes a workbench. A moving seat is slidably arranged on the workbench. A placing plate is fixedly arranged on the moving seat. A feeding conveyor belt is fixedly arranged on one side of the workbench. A fixing frame is fixedly arranged on the workbench. A three-axis moving platform is arranged at the bottom right of the fixing frame. A vacuum chuck is fixedly arranged at the bottom of the three-axis moving platform. An electric telescopic rod is fixedly installed in the middle of the fixing frame. A heating plate is arranged at the bottom of the electric telescopic rod. A hydraulic rod is fixedly arranged at the left end of the fixing frame. A pressing plate is arranged at the bottom of the hydraulic rod.

[0006] Preferably, a lead screw is rotatably arranged in the inner cavity of the workbench, and one end of the lead screw is connected with a first servo motor. Guide rods are fixedly arranged on both sides of the lead screw. The bottom of the moving seat is slidably connected with the lead screw and the guide rods through moving blocks.

[0007] Preferably, roller shafts are evenly rotatably arranged in the inner cavity of the feeding conveyor belt. A second servo motor is fixedly arranged at one end of the roller shaft. Baffle plates are fixedly arranged on both sides of the feeding conveyor belt, and an infrared sensor is arranged at the left end of the baffle plate.

[0008] Preferably, a convex strip is fixedly arranged on the top edge of the moving seat. A threaded rod passes through the convex strip, and a clamping plate is arranged at the moving end of the threaded rod.

[0009] Preferably, a positioning hole is formed in the moving seat, a positioning rod is fixedly arranged at a position opposite to the positioning hole at the bottom of the placing plate, and the positioning rod is inserted into the positioning hole. A placing groove is formed in the placing plate.

[0010] Preferably, infrared transmitters are uniformly and fixedly arranged on the top of the fixing frame, and the infrared transmitters are respectively located on one side of the three-axis moving platform, the electric telescopic rod, and the hydraulic rod. An infrared receiver is fixedly arranged on one side of the moving seat, and the position of the infrared receiver corresponds to that of the infrared sensor.

[0011] Preferably, a heater is fixedly installed on one side of the top of the heating plate, a protective cover is fixedly arranged at the bottom of the heater, and the bottom edge of the protective cover contacts the convex strip.

[0012] Preferably, a moving plate is fixedly arranged at the bottom end of the hydraulic rod, the pressing plate is arranged below the moving plate, extrusion springs are uniformly arranged between the pressing plate and the moving plate, pressing blocks are uniformly and fixedly arranged at the bottom of the pressing plate, and an anti-sticking coating is arranged at the bottom of the pressing block.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. By setting the moving seat, during use, the PCB board can be placed on the placing plate on the moving seat, and the moving seat can be moved leftward on the workbench. At the same time, the shielding film will also be conveyed on the feeding conveyor belt, so as to complete the operation of attaching the shielding film. Moreover, it is convenient to replace the placing plate, so as to meet the use of different PCB boards and improve its practicability.

[0015] 2. By setting the vacuum suction cup, when the PCB board and the shielding film are both conveyed below the three-axis moving platform, the shielding film can be sucked up by the vacuum suction cup, and the shielding film can be automatically and accurately covered on the PCB board, which is convenient for subsequent attaching operations.

[0016] 3. By setting the heating plate and the pressing plate, after the shielding film covers the PCB board, it will continue to move below the heating plate, and the heating plate will heat the shielding film and the PCB board together to ensure that all parts of the PCB board and the shielding film on its surface have the same hardness and softness. Then it moves below the pressing plate, and presses the position covered by the shielding film to make the shielding film better adhere to the PCB board, ensuring that there are no bubbles between the circuit board and the shielding film and improving the adhering effect. Description of the Drawings

[0017] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used to explain the present utility model together with the specific embodiments of the present utility model, and do not constitute a limitation to the present utility model.

[0018] Figure 1 It is a schematic diagram of the overall structure of a shielding glue laminating jig for a PCB board in the present utility model;

[0019] Figure 2 It is a schematic diagram of the moving seat structure of a shielding glue laminating jig for a PCB board in the present utility model;

[0020] Figure 3 It is a schematic cross-sectional view of a heating plate of a shielding glue laminating jig for a PCB board in the present utility model;

[0021] Figure 4 It is a schematic cross-sectional view of a pressing plate of a shielding glue laminating jig for a PCB board in the present utility model;

[0022] Reference numerals in the figure: 1, workbench; 2, moving seat; 3, placing plate; 4, feeding conveyor belt; 5, fixing frame; 6, three-axis moving platform; 7, vacuum chuck; 8, electric telescopic rod; 9, heating plate; 10, hydraulic rod; 11, pressing plate; 12, lead screw; 13, guide rod; 14, rib; 15, threaded rod; 16, positioning hole; 17, positioning rod; 18, heater; 19, protective cover; 20, moving plate; 21, compression spring. Detailed implementation manners

[0023] To further illustrate the embodiments, the present utility model provides accompanying drawings, which are part of the disclosure of the present utility model. They are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present utility model, there is provided a shielding glue laminating jig for a PCB board.

[0025] Embodiment 1

[0026] As Figures 1-4As shown in the figure, a shielding glue laminating tool for a PCB board according to an embodiment of the present utility model includes a workbench 1. A moving seat 2 is slidably arranged on the workbench 1. A placement plate 3 is fixedly arranged on the moving seat 2. A feeding conveyor belt 4 is fixedly arranged on one side of the workbench 1. A fixed frame 5 is fixedly arranged on the workbench 1. A three-axis moving platform 6 is arranged at the bottom right of the fixed frame 5. A vacuum chuck 7 is fixedly arranged at the bottom of the three-axis moving platform 6. An electric telescopic rod 8 is fixedly installed in the middle of the fixed frame 5. A heating plate 9 is arranged at the bottom of the electric telescopic rod 8. A hydraulic rod 10 is fixedly arranged at the left end of the fixed frame 5. A pressing plate 11 is arranged at the bottom of the hydraulic rod 10. A lead screw 12 is rotatably arranged in the inner cavity of the workbench 1, and one end of the lead screw 12 is connected with a first servo motor. Guide rods 13 are fixedly arranged on both sides of the lead screw 12. The bottom of the moving seat 2 is slidably connected to the lead screw 12 and the guide rods 13 through moving blocks. By driving the lead screw 12 to rotate through the first servo motor, the purpose of moving the moving seat 2 left and right is achieved, and the guide rods 13 ensure the smoothness of its movement and also make the PCB board stop more accurately at each laminating station. Uniform rollers are rotatably arranged in the inner cavity of the feeding conveyor belt 4. A second servo motor is fixedly arranged at one end of the roller. Baffle plates are fixedly arranged on both sides of the feeding conveyor belt 4, and an infrared sensor is arranged at the left end of the baffle plate to convey the shielding glue film on the feeding conveyor belt 4. Infrared emitters are uniformly and fixedly arranged on the top of the fixed frame 5, and the infrared emitters are respectively located on one side of the three-axis moving platform 6, the electric telescopic rod 8, and the hydraulic rod 10. An infrared receiver is fixedly arranged on one side of the moving seat 2, and the position of the infrared receiver corresponds to that of the infrared sensor. Each time the moving seat 2 moves to a predetermined position, its position is detected through the infrared receiver to ensure the accuracy of the position of the shielding glue film during lamination.

[0027] Embodiment 2

[0028] As Figures 1-4As shown in the figure, a jig for bonding shielding glue on a PCB board according to an embodiment of the present invention includes a workbench 1. A moving seat 2 is slidably arranged on the workbench 1. A placing plate 3 is fixedly arranged on the moving seat 2. A feeding conveyor belt 4 is fixedly arranged on one side of the workbench 1. A fixing frame 5 is fixedly arranged on the workbench 1. A three-axis moving platform 6 is arranged at the bottom right of the fixing frame 5. A vacuum chuck 7 is fixedly arranged at the bottom of the three-axis moving platform 6. An electric telescopic rod 8 is fixedly installed in the middle of the fixing frame 5. A heating plate 9 is arranged at the bottom of the electric telescopic rod 8. A hydraulic rod 10 is fixedly arranged at the left end of the fixing frame 5. A pressing plate 11 is arranged at the bottom of the hydraulic rod 10. A convex strip 14 is fixedly arranged at the top edge of the moving seat 2. A threaded rod 15 passes through the convex strip 14, and a clamping plate is arranged at the moving end of the threaded rod 15. A positioning hole 16 is formed in the moving seat 2. A positioning rod 17 is fixedly arranged at the bottom of the placing plate 3 at a position corresponding to the positioning hole, and the positioning rod 17 is inserted into the positioning hole 16. A placing groove is formed in the placing plate 3. When it is necessary to replace different placing plates 3, the threaded rod 15 can be rotated to move the clamping plate relatively, and then the placing plate 3 can be taken off from the moving seat, and the replacement operation is convenient.

[0029] Embodiment III

[0030] As Figures 1-4 As shown in the figure, a jig for bonding shielding glue on a PCB board according to an embodiment of the present invention includes a workbench 1. A moving seat 2 is slidably arranged on the workbench 1. A placing plate 3 is fixedly arranged on the moving seat 2. A feeding conveyor belt 4 is fixedly arranged on one side of the workbench 1. A fixing frame 5 is fixedly arranged on the workbench 1. A three-axis moving platform 6 is arranged at the bottom right of the fixing frame 5. A vacuum chuck 7 is fixedly arranged at the bottom of the three-axis moving platform 6. An electric telescopic rod 8 is fixedly installed in the middle of the fixing frame 5. A heating plate 9 is arranged at the bottom of the electric telescopic rod 8. A hydraulic rod 10 is fixedly arranged at the left end of the fixing frame 5. A pressing plate 11 is arranged at the bottom of the hydraulic rod 10. A heater 18 is fixedly installed on one side at the top of the heating plate 9. A protective cover 19 is fixedly arranged at the bottom of the heater 18, and the bottom edge of the protective cover 19 is in contact with the convex strip 14. The electric telescopic rod 8 is used to move the heater 18 downward, so that the protective cover 19 covers the moving seat 2, which is more convenient for heating the PCB board and the shielding glue film in a certain space. A moving plate 20 is fixedly arranged at the bottom end of the hydraulic rod 10. The pressing plate 11 is arranged below the moving plate 20. A plurality of compression springs 21 are evenly arranged between the pressing plate 11 and the moving plate 20. A plurality of pressing blocks are fixedly arranged at the bottom of the pressing plate 11, and an anti-sticking coating is arranged at the bottom of the pressing block. The hydraulic rod 10 is used to move the moving plate 20 downward, so that the bottom of the pressing plate 11 is in contact with the shielding glue film. As the compression springs 21 contract, the pressure during bonding can be gradually increased, avoiding damage to the shielding glue film and the PCB board.

[0031] In summary, by means of the above technical solution of the present utility model, when this device is in use, the PCB board and the shielding film are respectively placed on the placement plate 3 and the feeding conveyor belt 4. The moving seat 2 moves leftward on the workbench 1, and at the same time, the shielding film is also conveyed on the feeding conveyor belt 4. When both the PCB board and the shielding film are conveyed below the three-axis moving platform 6, the shielding film can be sucked up by the vacuum suction cup 7, and the shielding film is automatically and accurately covered on the PCB board. Then it will continue to move below the heating plate 9, and the heating plate 9 is used to heat the shielding film and the PCB board together to ensure that all parts of the PCB board and the shielding film on its surface have the same hardness and softness. Finally, it moves below the pressing plate 11 to apply pressure to the position covered by the shielding film, so that the shielding film can be better attached to the PCB board, ensuring that there are no bubbles between the circuit board and the shielding film and improving the attachment effect.

[0032] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A shielding glue laminating jig for a PCB board, comprising a workbench (1), characterized in that: A moving seat (2) is slidably arranged on the workbench (1), a placing plate (3) is fixedly arranged on the moving seat (2), a feeding conveyor belt (4) is fixedly arranged on one side of the workbench (1), a fixing frame (5) is fixedly arranged on the workbench (1), a three-axis moving platform (6) is arranged at the bottom right of the fixing frame (5), a vacuum suction cup (7) is fixedly arranged at the bottom of the three-axis moving platform (6), an electric telescopic rod (8) is fixedly installed in the middle of the fixing frame (5), a heating plate (9) is arranged at the bottom of the electric telescopic rod (8), a hydraulic rod (10) is fixedly arranged at the left end of the fixing frame (5), and a pressing plate (11) is arranged at the bottom of the hydraulic rod (10).

2. A shielding glue laminating jig for a PCB board according to claim 1, characterized in that: A lead screw (12) is rotatably arranged in the inner cavity of the workbench (1), and one end of the lead screw (12) is connected with a first servo motor. Guide rods (13) are fixedly arranged on both sides of the lead screw (12). The bottom of the moving seat (2) is slidably connected with the lead screw (12) and the guide rods (13) through moving blocks respectively.

3. The shielding glue bonding tool for PCB board according to claim 2, characterized in that: Rollers are evenly rotatably arranged in the inner cavity of the feeding conveyor belt (4), and a second servo motor is fixedly arranged at one end of each roller. Material retaining plates are fixedly arranged on both sides of the feeding conveyor belt (4), and an infrared sensor is arranged at the left end of the material retaining plate.

4. A shielding adhesive bonding jig for a PCB board according to claim 3, characterized in that: A convex strip (14) is fixedly arranged at the top edge of the moving seat (2), a threaded rod (15) penetrates through the convex strip (14), and a clamping plate is arranged at the moving end of the threaded rod (15).

5. A shielding glue laminating jig for a PCB board according to claim 4, characterized in that: A positioning hole (16) is formed in the moving seat (2), a positioning rod (17) is fixedly arranged at the bottom of the placing plate (3) at a position corresponding to the positioning hole, and the positioning rod (17) is inserted into the positioning hole (16). A placing groove is formed in the placing plate (3).

6. A shielding glue laminating jig for a PCB board according to claim 5, characterized in that: Infrared emitters are evenly and fixedly arranged at the top of the fixing frame (5), and the infrared emitters are respectively located on one side of the three-axis moving platform (6), the electric telescopic rod (8), and the hydraulic rod (10). An infrared receiver is fixedly arranged on one side of the moving seat (2), and the position of the infrared receiver corresponds to that of the infrared sensor.

7. A shielding glue laminating jig for a PCB board according to claim 6, characterized in that: A heater (18) is fixedly installed on one side at the top of the heating plate (9), a protective cover (19) is fixedly arranged at the bottom of the heater (18), and the bottom edge of the protective cover (19) is in contact with the convex strip (14).

8. A shielding adhesive bonding tool for a PCB board according to claim 7, characterized in that: A moving plate (20) is fixedly arranged at the bottom end of the hydraulic rod (10), the pressing plate (11) is arranged below the moving plate (20), extrusion springs (21) are evenly arranged between the pressing plate (11) and the moving plate (20), pressing blocks are evenly and fixedly arranged at the bottom of the pressing plate (11), and an anti-sticking coating is arranged at the bottom of the pressing block.

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