Film erecting device for PCB manufacturing

Abstract

The utility model discloses a film erecting device for PCB (printed circuit board) manufacturing, which relates to the technical field of PCB manufacturing and comprises a lower glass table board and a film body placed on the lower glass table board, and tool holes are processed at four corners of the film body through a film perforating machine; the outer supporting frame is fixedly mounted on the periphery of the lower glass table top; the four pin holes are formed in the lower glass table top and correspond to the tool holes in position; the four pins are respectively inserted into the four pin holes; supporting frames are installed at the two ends of the bottom of the outer supporting frame, fixing frames are fixedly installed at the two ends of one side of each supporting frame, and height adjusting assemblies used for adjusting the heights of pins are arranged on the fixing frames. The problem of interlayer dislocation caused by alignment is effectively avoided, the film erecting speed in the alignment process is shortened, and the production cost is greatly saved.

Description

Technical Field

[0001] This utility model relates to the field of PCB manufacturing technology, and in particular to a film mounting device for PCB manufacturing. Background Technology

[0002] Inner layer pattern transfer is an essential step in the PCB manufacturing process. It is mainly used to transfer the design circuitry of a PCB product onto the PCB, that is, to set the film onto the PCB.

[0003] Currently, the inner layer pattern transfer process is performed inside the exposure machine. The conventional film mounting method is as follows: First, turn on the camera (four sets in total) of the exposure machine, place the first film on the lower glass stage of the exposure machine, observe the image captured by the camera on the control screen, align the alignment target points designed on the film with the camera position, and then open the vacuum of the lower glass stage to adhere and fix the film. Next, place the second film, observe the image captured by the camera on the control screen, manually align the alignment target points of the second film with the alignment target points of the first film, then lower the upper glass frame to close it with the lower glass stage, and open the vacuum to adhere and fix the second film. However, the existing operation method is cumbersome, requiring manual alignment of the film with the stage to complete the installation of two films. Installing a set of films at this time is extremely time-consuming and cannot meet the needs of rapid production. Therefore, there is an urgent need to design a film mounting device for PCB manufacturing to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a film mounting device for PCB manufacturing. Its advantages include facilitating rapid alignment of two film bodies, effectively avoiding interlayer misalignment caused by alignment, shortening the film mounting speed during the alignment process, and greatly saving production costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A film mounting device for PCB manufacturing includes:

[0007] The lower glass tabletop and the film body placed on it, wherein tool holes are machined at the four corners of the film body by a film punching machine;

[0008] The outer support frame is fixedly installed around the perimeter of the lower glass tabletop;

[0009] Four pin holes are provided on the lower glass table surface, corresponding to the positions of the tool holes;

[0010] Four pins are inserted into the four pin holes respectively;

[0011] Support frames are installed at both ends of the bottom of the outer support frame, and fixed frames are fixedly installed at both ends of one side of the support frame. The fixed frames are equipped with height adjustment components for adjusting the height of the pins, and the height adjustment components are equipped with drive mechanisms.

[0012] The above technical solutions facilitate rapid alignment of the two film bodies, effectively avoid interlayer misalignment caused by alignment, shorten the film setup time during the alignment process, and greatly save production costs.

[0013] The present invention is further configured such that the height adjustment component includes a circular hole opened at one end of the inner wall of the fixed frame, and a lifting rod is inserted into the inner wall of the circular hole. A pin is detachably installed on the top of the lifting rod. Mounting holes are opened on the fixed frame, and mounting shafts are rotatably connected to the inner walls of the mounting holes via bearings. Second gears inserted into the fixed frame are fixedly installed on both sides of the outer wall of the mounting shaft. Second tooth grooves are evenly distributed on one side of the lifting rod, and the second tooth grooves mesh with the second gears.

[0014] The present invention is further configured such that the driving mechanism includes an electric push rod fixedly installed at the bottom of one of the support frames, and a movable frame is fixedly installed at the piston end of the electric push rod. The bottom sides of the movable frame are provided with first tooth grooves distributed at equal intervals. A first gear is fixedly installed on one side of the outer wall of the two mounting shafts, and the first gear meshes with the first tooth groove.

[0015] The above technical solutions facilitate the adjustment of the pin height.

[0016] The present invention is further configured such that guide grooves are provided on one side of the bottom of both support frames, and guide blocks inserted into the guide grooves are fixed on both sides of the top of the movable frame. The cross-sections of the guide grooves and guide blocks are designed in a T-shape.

[0017] The above technical solutions prevent the movable frame from shifting when it moves.

[0018] The present invention is further configured such that a screw hole is provided at the top of the lifting rod, and a screw rod screwed into the screw hole is fixed at the bottom of the pin.

[0019] The above technical solutions facilitate the replacement and maintenance of pins, make it easy to assemble pins of different sizes, and meet production needs.

[0020] The present invention is further provided that the surface of the pin is provided with anti-slip grooves that are evenly spaced and distributed in a ring.

[0021] The above technical solutions facilitate the rotation of the pin.

[0022] The present invention is further configured such that a sealing ring is fixedly installed on the inner wall of each pin hole, and a guide sleeve is installed on the inner wall of each sealing ring, and the outer wall of the lifting rod is in contact with the inner wall of the guide sleeve.

[0023] The above technical solutions can guide and support the lifting rod, ensuring smooth lifting of the pin.

[0024] The present invention is further configured such that a vacuum adsorption channel is provided inside the lower glass stage, and the vacuum adsorption channel is connected to an external vacuum pump; adsorption holes are evenly distributed on the top surface of the lower glass stage; and a sealing ring is used to seal the pin hole and the vacuum adsorption channel.

[0025] The above technical solutions aim to prevent air leakage from affecting the vacuum adsorption effect.

[0026] The beneficial effects of this utility model are as follows:

[0027] This utility model has a simple structure and is easy to use. By using pins with fixed positions and tool holes designed on the film with fixed positions, it achieves natural alignment between the film and the work surface, and between two films. It also has good versatility, facilitates film fixing and positioning, enables quick changeovers, improves work efficiency, saves manual alignment costs, effectively avoids misalignment between layers caused by alignment, shortens the film setting speed during the alignment process, and greatly saves production costs.

[0028] In this invention, the pin and the lifting rod are detachably connected by a screw rod and a screw hole, which facilitates the replacement and maintenance of the pin and makes it easy to assemble pins of different sizes to meet production needs.

[0029] In this invention, a sealing ring and a guide sleeve are provided on the inner wall of the pin hole. These not only seal the pin hole and the vacuum adsorption channel to prevent air leakage from affecting the vacuum adsorption effect, but also guide and support the lifting rod to ensure that the pin rises and falls smoothly. Attached Figure Description

[0030] Figure 1 This is a perspective view of a film mounting device for PCB manufacturing proposed in this utility model;

[0031] Figure 2 This is a front sectional view of a film mounting device for PCB manufacturing proposed in this utility model;

[0032] Figure 3 This is a schematic diagram of the pin hole and sealing ring structure of a film mounting device for PCB manufacturing proposed in this utility model;

[0033] Figure 4 This is a schematic diagram of the drive mechanism structure of a film mounting device for PCB manufacturing proposed in this utility model;

[0034] Figure 5 This is a schematic diagram of the guide block and guide groove structure of a film mounting device for PCB manufacturing proposed in this utility model;

[0035] Figure 6 This is a schematic diagram of the second toothed groove structure of a film mounting device for PCB manufacturing proposed in this utility model;

[0036] Figure 7 This is a schematic diagram of the screw hole and screw rod structure of a film mounting device for PCB manufacturing proposed in this utility model.

[0037] In the diagram: 1. Lower glass platform; 2. Outer support frame; 3. Film body; 4. Tool hole; 5. Support frame; 6. Drive mechanism; 601. Electric push rod; 602. Movable frame; 603. First tooth groove; 604. First gear; 605. Mounting shaft; 606. Second gear; 607. Lifting rod; 608. Guide block; 609. Guide groove; 610. Second tooth groove; 7. Fixed frame; 8. Sealing ring; 9. Pin hole; 10. Guide sleeve; 11. Pin; 12. Anti-slip groove; 13. Threaded hole; 14. Threaded rod. Detailed Implementation

[0038] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0039] Reference Figures 1-7 This utility model provides a film mounting device for PCB manufacturing, including: a lower glass platform 1 and a film body 3 placed thereon, wherein tool holes 4 are machined at the four corners of the film body 3 by a film punching machine; an outer support frame 2, which is fixedly installed around the lower glass platform 1; four pin holes 9, which are opened on the lower glass platform 1 and correspond to the positions of the tool holes 4; four pins 11, which are respectively inserted into the four pin holes 9; support frames 5 are installed at both ends of the bottom of the outer support frame 2, and fixed frames 7 are fixedly installed at both ends of one side of the support frame 5. The fixed frames 7 are provided with height adjustment components for adjusting the height of the pins 11, and the height adjustment components are provided with a drive mechanism 6.

[0040] The height adjustment assembly includes a circular hole on one end of the inner wall of the fixed frame 7, and a lifting rod 607 is inserted into the inner wall of the circular hole. A pin 11 is detachably installed on the top of the lifting rod 607. The fixed frame 7 has mounting holes, and the inner wall of the mounting holes is rotatably connected to the mounting shaft 605 via bearings. A second gear 606 inserted into the fixed frame 7 is fixedly installed on both sides of the outer wall of the mounting shaft 605. A second tooth groove 610 is evenly distributed on one side of the lifting rod 607, and the second tooth groove 610 meshes with the second gear 606. The drive mechanism 6 includes an electric push rod 601 fixedly installed at the bottom of one of the support frames 5, and a movable frame 602 is fixedly installed on the piston end of the electric push rod 601. A first tooth groove 603 is evenly distributed on both sides of the bottom of the movable frame 602. A second gear 602 is fixedly installed on one side of the outer wall of both mounting shafts 605. Equipped with a first gear 604 that meshes with a first tooth groove 603, both support frames 5 have guide grooves 609 on one side of their bottom, and guide blocks 608, which are inserted into the guide grooves 609, are fixed on both sides of the top of the movable frame 602. The cross-sections of the guide grooves 609 and the guide blocks 608 are designed in a T-shape. The movable frame 602 is moved by an electric push rod 601 in the drive mechanism 6. Since the first tooth groove 603 meshes with the first gear 604 and the second tooth groove 610 meshes with the second gear 606, the mounting shaft 605 rotates, which also drives the lifting rod 607 to rise and fall in the circular hole of the fixed frame 7, thereby adjusting the height of the pin 11. This facilitates the rapid alignment of the two film bodies 3, effectively avoids the problem of interlayer misalignment caused by alignment, shortens the film setting speed during the alignment process, and greatly saves production costs.

[0041] For easier replacement of pin 11, refer to... Figure 4 and Figure 7 The top of the lifting rod 607 is provided with a screw hole 13, and the bottom of the pin 11 is fixed with a screw rod 14 screwed into the screw hole 13. The surface of the pin 11 is provided with anti-slip grooves 12 that are evenly distributed in a ring. The pin 11 and the lifting rod 607 are detachably connected through the screw rod 14 and the screw hole 13, which facilitates the replacement and maintenance of the pin 11 and makes it easy to assemble pins 11 of different sizes to meet production needs.

[0042] To avoid air leakage, refer to Figure 2 and Figure 3A sealing ring 8 is fixedly installed on the inner wall of each pin hole 9, and a guide sleeve 10 is installed on the inner wall of each sealing ring 8. The outer wall of the lifting rod 607 fits against the inner wall of the guide sleeve 10. A vacuum adsorption channel is provided inside the lower glass platform 1, and the vacuum adsorption channel is connected to an external vacuum pump. Adsorption holes are evenly distributed on the top surface of the lower glass platform 1. The sealing ring 8 is used to seal the pin hole 9 and the vacuum adsorption channel. Through the sealing ring 8 and the guide sleeve 10, the pin hole 9 and the vacuum adsorption channel can be sealed to prevent air leakage from affecting the vacuum adsorption effect. At the same time, the lifting rod 607 can be guided and supported to ensure that the pin 11 rises and falls smoothly.

[0043] Working principle: Tool holes 4 are pre-drilled at the four corners of the two film bodies 3 using a film punching machine. One of the film bodies 3 is placed on the lower glass platform 1, so that the tool hole 4 mates with the corresponding pin hole 9 on the lower glass platform 1. The pin 11 is inserted into the pin hole 9 to achieve the initial positioning of the film body 3. Then, the electric push rod 601 in the drive mechanism 6 is activated to drive the movable frame 602 to move. The first tooth groove 603 on both sides of the bottom of the movable frame 602 meshes with the first gear 604 on one side of the outer wall of the mounting shaft 605, causing the mounting shaft 605 to rotate. The second gear 606 on both sides of the outer wall of the mounting shaft 605 meshes with the second tooth groove 610 on one side of the lifting rod 607, thereby driving the lifting rod 607 to rise and fall within the circular hole of the fixed frame 7 to adjust the height of the pin 11. After the pin 11 is adjusted, the other film body 3 is hung on the pin 11, so that the pin 11 passes through its tool hole 4 to adapt to films of different thicknesses.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A film mounting device for PCB manufacturing, characterized in that, include: The lower glass tabletop (1) and the film body (3) placed thereon, the four corners of the film body (3) are machined with tool holes (4) by a film punching machine. An outer support frame (2) is fixedly installed around the lower glass tabletop (1); Four pin holes (9) are provided on the lower glass table (1) and correspond to the positions of the tool holes (4); Four pins (11) are respectively inserted into the four pin holes (9); Support frames (5) are installed at both ends of the bottom of the outer support frame (2), and fixed frames (7) are fixedly installed at both ends of one side of the support frame (5). A height adjustment component for adjusting the height of the pin (11) is provided on the fixed frame (7), and a drive mechanism (6) is provided on the height adjustment component.

2. The film mounting device for PCB manufacturing according to claim 1, characterized in that, The height adjustment component includes a circular hole at one end of the inner wall of the fixed frame (7), and a lifting rod (607) is inserted into the inner wall of the circular hole. A pin (11) is detachably installed on the top of the lifting rod (607). The fixed frame (7) is provided with mounting holes, and the inner wall of the mounting holes is rotatably connected to a mounting shaft (605) via a bearing. The outer walls of the mounting shaft (605) are fixedly installed with second gears (606) inserted into the fixed frame (7) on both sides. The lifting rod (607) is provided with equidistant second tooth grooves (610) on one side, and the second tooth grooves (610) mesh with the second gears (606).

3. The film mounting device for PCB manufacturing according to claim 2, characterized in that, The drive mechanism (6) includes an electric push rod (601) fixedly installed at the bottom of one of the support frames (5), and a movable frame (602) is fixedly installed at the piston end of the electric push rod (601). The bottom sides of the movable frame (602) are provided with first tooth grooves (603) distributed at equal intervals. A first gear (604) is fixedly installed on one side of the outer wall of the two mounting shafts (605), and the first gear (604) meshes with the first tooth groove (603).

4. The film mounting device for PCB manufacturing according to claim 3, characterized in that, The bottom side of each of the two support frames (5) is provided with a guide groove (609), and the top sides of the movable frame (602) are fixed with guide blocks (608) inserted into the guide groove (609). The cross-section of the guide groove (609) and the guide block (608) is designed as T-shaped.

5. The film mounting device for PCB manufacturing according to claim 4, characterized in that, The top of the lifting rod (607) is provided with a screw hole (13), and the bottom of the pin (11) is fixed with a screw rod (14) screwed into the screw hole (13).

6. The film mounting device for PCB manufacturing according to claim 5, characterized in that, The surface of the pin (11) is provided with anti-slip grooves (12) that are evenly spaced and distributed in a ring.

7. The film mounting device for PCB manufacturing according to claim 6, characterized in that, The inner wall of each pin hole (9) is fixedly fitted with a sealing ring (8), and the inner wall of each sealing ring (8) is fitted with a guide sleeve (10). The outer wall of the lifting rod (607) is in contact with the inner wall of the guide sleeve (10).

8. The film mounting device for PCB manufacturing according to claim 7, characterized in that, The lower glass platform (1) is provided with a vacuum adsorption channel inside, and the vacuum adsorption channel is connected to an external vacuum pump. The top surface of the lower glass platform (1) is evenly distributed with adsorption holes. The sealing ring (8) is used to seal the pin hole (9) and the vacuum adsorption channel.

Images