Pressing device for printed circuit board processing

Abstract

The utility model relates to the technical field of circuit board pressing, and discloses a pressing device for printed circuit board processing, which comprises a base, a U-shaped frame is mounted on the outer side of the top end of the base, an electric telescopic rod is mounted at the top end of the U-shaped frame, and the bottom end of the electric telescopic rod penetrates through the top end of the U-shaped frame and is connected with an upper pressing plate. And a lower pressing plate is correspondingly mounted at the top end of the base below the upper pressing plate. According to the utility model, under the action of the turnover mechanism, the upper pressing plate can drive the connecting plate to turn over in a reciprocating manner in the process of ascending after pressing is finished, so that the knocking column repeatedly knocks the top end of the upper pressing plate, and the top end of the upper pressing plate is knocked by utilizing the downward knocking force transmission; the knocking force is applied to the upper pressing plate to promote the separation effect between the bottom end of the upper pressing plate and the top end of the pressed printed circuit board, and the knocking force indirectly acts on the printed circuit board, so that the surface of the circuit board is not easy to damage, and the anti-adhesion effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board pressing, in particular to a pressing device for printed circuit board processing. Background Technique

[0002] Printed circuit boards are important electronic components, the support body of electronic components, and the provider of circuit connections for electronic components. They are mainly made by using an insulating part composed of fiberglass, non-woven materials, and resin, and then pressing epoxy resin and copper foil into "bonding sheets" for use;

[0003] Chinese Patent Grant Publication No. CN219145772U discloses a pressing device for embedded printed circuit board processing, including a processing table with a fixed groove opened at the top. A support frame is fixedly connected to the top of the processing table, a cylinder is fixedly connected to the top of the support frame, the piston end of the cylinder is fixedly connected to an upper pressing module, and a lower pressing module is slidably connected to the inner side wall of the fixed groove. At the same time, a clamping and disassembling device can disassemble the printed circuit board pressed and adhered to the bottom of the lower pressing module. Compared with manual-assisted disassembly, this device automatically disassembles the pressed and adhered printed circuit board, which is more time-saving and labor-saving, and also safer. The above-mentioned existing technical solution has the following deficiencies: In this pressing device, mainly through the disassembly knife blocks that can be squeezed inward on both sides, when the upper pressing module rises, the cutting action of the disassembly blades is used to prevent the top of the printed circuit board from adhering to the upper pressing module. However, during this process, due to the elastic action of the second spring below the printed circuit board, it bounces upward. And the printed circuit board is composed of multiple layers, and its disassembly knife blocks are also prone to cutting the gaps of the imprinted layer of the printed circuit board during the pressing process, so it is easy to cause damage to the printed circuit board and affect its anti-adhesion effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pressing device for printed circuit board processing to solve the problem that the existing pressing device for printed circuit board processing has a general anti-adhesion effect on the top of the circuit board proposed in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A lamination device for printed circuit board processing, including a base. A U-shaped frame is installed on the outer side of the top end of the base, and an electric telescopic rod is installed at the top end of the U-shaped frame. The bottom end of the electric telescopic rod penetrates through the top end of the U-shaped frame and is connected to an upper lamination plate. Correspondingly, a lower lamination plate is installed at the top end of the base below the upper lamination plate. Side clamping blocks are installed at the four edges of the top end of the lower lamination plate. Both sides of the upper lamination plate are rotatably connected to rotating plates through support blocks and rotating shafts. At the bottom end of the rotating plate close to the electric telescopic rod, connecting plates are evenly installed. One end of multiple connecting plates is connected to a knocking column, and the bottom end of the knocking column abuts against the top end of the upper lamination plate. First magnets are embedded at the bottom ends of multiple connecting plates, and second magnets are correspondingly installed at the top end of the upper lamination plate below the first magnets. The first magnets and the second magnets attract each other. At the top ends of the left and right rotating plates far from the electric telescopic rod, a flipping mechanism is provided, so that the upper lamination plate drives the rotating plate to flip during the rising process, and the knocking column knocks on the upper lamination plate.

[0006] Preferably, the flipping mechanism includes vertical plates installed on the top end of the base close to the outer side of the upper lamination plate, and guide plates are evenly installed on the inner side of the vertical plates. Hinges are installed on both sides of the top end of the rotating plate, and a flipping plate is connected to the outer sides of the bottom ends of the two hinges.

[0007] Preferably, during the up and down movement of the flipping plate, the outermost edge of the flipping plate can contact the upper and lower end faces of the guide plate. There are two vertical plates, and four guide plates are provided on each vertical plate. The guide plates are longitudinally distributed at equal intervals on the vertical plates.

[0008] Preferably, the flipping plate forms a flipping structure with the rotating plate through the cooperation of the hinges, and the inner side of the flipping plate abuts against the outer side of the rotating plate.

[0009] Preferably, the flipping plate, the rotating plate and the connecting plate form a structure with a Z-shaped cross-section, and the position of the flipping plate is higher than that of the connecting plate.

[0010] Preferably, air cylinders are installed at the top ends of the upper lamination plate on both sides of the electric telescopic rod, and a plug rod penetrates through the inside of each air cylinder. The top ends of the plug rods extend above the air cylinders and are connected to the top end inside the U-shaped frame. Air outlet holes are evenly communicated between the bottom ends of the air cylinders and the upper lamination plate. Check valves are arranged inside the air outlet holes, and one-way air inlet pipes are installed on both sides of the air cylinders.

[0011] Preferably, the air cylinders are arranged between the electric telescopic rod and the rotating plate. There are two air cylinders, and each air cylinder is provided with four air outlet holes, and the four air outlet holes are distributed in a cross shape.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) Through the action of the flip mechanism, the upper pressing plate can drive the connecting plate to flip back and forth during the process of rising after pressing, so that the knocking column repeatedly knocks the top of the upper pressing plate, and uses the transmission of the downward knocking force to promote the separation between the bottom end of the upper pressing plate and the top of the printed circuit board after pressing. Since the knocking force acts indirectly on the printed circuit board, it is not easy to damage the surface of the circuit board, thereby improving the anti-adhesion effect; at the same time, by using the cooperation of the hinge and the flip plate, the upper pressing plate moves downward. During the knocking process, the knocking column does not have a knocking effect, so as to reduce the impact damage to the top end of the upper pressing plate and improve its service life; through the downward movement of the upper pressing plate, the second magnet cooperates with the one-way air inlet pipe to inflate the interior of the air cylinder. When the upper pressing plate is reset, the plugging rod is used to compress the internal space of the air cylinder, so that the air is discharged outward along the air outlet. The downward pushing force of the air is used to promote the separation between the bottom end of the upper pressing plate and the printed circuit board, and because the air has a certain diffusivity, it avoids damage to the surface of the printed circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection plate distribution of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the vertical plate of the present utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the gas cylinder of the present utility model.

[0019] Explanation of the reference numerals in the figure: 1. Base; 2. U-shaped frame; 3. Electric telescopic rod; 4. Upper pressing plate; 5. Lower pressing plate; 6. Side clamp; 7. Rotating plate; 8. Connecting plate; 9. Knocking column; 10. Flipping mechanism; 1001. Flipping plate; 1002. Hinge; 1003. Guide plate; 1004. Vertical plate; 11. First magnet; 12. Second magnet; 13. Air outlet; 14. One-way valve; 15. One-way air inlet pipe; 16. Air cylinder; 17. Stopper rod. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 4 , an embodiment provided by the present utility model: a lamination device for printed circuit board processing, including a base 1, a U-shaped frame 2 is installed on the outer side of the top end of the base 1, and an electric telescopic rod 3 is installed at the top end of the U-shaped frame 2; air cylinders 16 are installed at the top ends of the upper lamination plates 4 on both sides of the electric telescopic rod 3, and a plug rod 17 penetrates through the inside of each air cylinder 16, and the top ends of the plug rods 17 extend above the air cylinders 16 and are connected to the top end inside the U-shaped frame 2. The bottom ends of the air cylinders 16 are uniformly communicated with air outlet holes 13 between the upper lamination plates 4. Check valves 14 are arranged inside the air outlet holes 13, and one-way intake pipes 15 are installed on both sides of the air cylinders 16; the air cylinders 16 are arranged between the electric telescopic rod 3 and the rotating plate 7, there are two air cylinders 16, and each air cylinder 16 is provided with four air outlet holes 13, and the four air outlet holes 13 are distributed in a cross shape; specifically, as Figure 1 、 Figure 4As shown in the figure, when in use, during the pressing and moving process of the upper pressing plate 4, the inflation and deflation effects inside the air cylinder 16 are utilized to achieve the jet separation effect on the printed circuit board at the bottom end of the upper pressing plate 4. And due to the fluidity of the gas, when there is a gap between the upper pressing plate 4 and the printed circuit board, the gas can expand the gap to promote the separation of the two, and the damage to the printed circuit board caused by this separation prevention is extremely small. The bottom end of the electric telescopic rod 3 penetrates through the top end of the U-shaped frame 2 and is connected to an upper pressing plate 4. And a lower pressing plate 5 is correspondingly installed at the top end of the base 1 below the upper pressing plate 4. Side clamping blocks 6 are installed at the four edges of the top end of the lower pressing plate 5. Both sides of the upper pressing plate 4 are rotatably connected to a rotating plate 7 through a support block and a rotating shaft. The support block is fixedly connected to the upper pressing plate. The support block and the rotating plate 7 are rotatably connected through a rotating shaft. And a connecting plate 8 is uniformly installed at the bottom end of the rotating plate 7 close to the electric telescopic rod 3. One end of a plurality of connecting plates 8 is connected to a knocking column 9, and the bottom end of the knocking column 9 abuts against the top end of the upper pressing plate 4. The bottom ends of a plurality of connecting plates 8 are embedded with a first magnet 11, and a second magnet 12 is correspondingly installed at the top end of the upper pressing plate 4 below the first magnet 11. The first magnet 11 and the second magnet 12 attract each other. Flip mechanisms 10 are arranged at the top ends of the left and right rotating plates 7 far from the electric telescopic rod 3, so that the upper pressing plate 4 drives the rotating plate 7 to flip during the rising process, and the knocking column 9 knocks on the upper pressing plate 4. The flip mechanism 10 includes a vertical plate 1004 installed at the top end of the base 1 close to the outside of the upper pressing plate 4, and guide plates 1003 are uniformly installed on the inner side of the vertical plate 1004. Hinges 1002 are installed at both sides of the top end of the rotating plate 7, and a flip plate 1001 is connected to the outside of the bottom ends of the two hinges 1002. During the up and down movement of the flip plate 1001, the outermost edge of the flip plate 1001 can contact the upper and lower end faces of the guide plate 1003. There are two vertical plates 1004, and four guide plates 1003 are arranged on each vertical plate 1004. The guide plates 1003 are longitudinally distributed at equal intervals on the vertical plate 1004. Specifically, as Figure 1 , Figure 2 , Figure 3 shown, when in use, by utilizing the blocking effect of the guide plate 1003, when the flip plate 1001 moves upward, it is convenient to generate a guiding effect, so that the flip plate 1001 drives the rotating plate 7 to flip, and thus the knocking column 9 generates a knocking effect on the lower upper pressing plate 4. The flip plate 1001 forms a flip structure with the rotating plate 7 through the cooperation of the hinge 1002, and the inner side of the flip plate 1001 abuts against the outer side of the rotating plate 7. A structure with a Z-shaped cross-section is formed among the flip plate 1001, the rotating plate 7 and the connecting plate 8, and the position of the flip plate 1001 is higher than that of the connecting plate 8. Specifically, as Figure 1 , Figure 2 , Figure 3As shown, during use, due to the function of the hinge 1002, it is possible to prevent the turning plate 7 from flipping when the flipping plate 1001 moves downward, thereby increasing the service life of the upper pressing plate 4.

[0022] Working principle: When the present utility model is in use, first place the printed circuit board on the lower pressing plate 5, and use a plurality of side clamping blocks 6 to clamp the four sides of the printed circuit board to prevent it from moving. Start the electric telescopic rod 3 to extend, so that it drives the upper pressing plate 4 to descend and squeeze the printed circuit board to achieve the pressing effect. During the descent of the upper pressing plate 4, the flipping plate 1001 is synchronously driven to descend, so that the outer end of the flipping plate 1001 contacts the guide plate 1003, and the flipping plate 1001 flips upward under the action of the hinge 1002 to prevent it from driving the turning plate 7 to rotate. At the same time, as the upper pressing plate 4 descends, the plugging rod 17 moves upward relative to the air cylinder 16, so that air flows into the interior of the air cylinder 16 along the one-way intake pipe 15. Secondly, when the upper pressing plate 4 finishes pressing and returns upward, the outer top end of the flipping plate 1001 contacts the bottom end of the guide plate 1003, and as the upper pressing plate 4 continues to rise, the flipping plate 1001 drives the turning plate 7 to produce a downward flip, so that the connecting plate 8 is lifted. When the turning plate 7 is briefly separated from the guide plate 1003, under the action of gravity and the attraction between the first magnet 11 and the second magnet 12, the knocking column 9 quickly returns downward and knocks on the top end of the upper pressing plate 4, using the knocking force to prevent the adhesion between the bottom end of the upper pressing plate 4 and the top end of the printed circuit board. Finally, during the upward movement of the upper pressing plate 4, the air cylinder 16 is driven to rise synchronously, so that the plugging rod 17 compresses the air inside the air cylinder 16, and the air is transmitted downward along the air outlet hole 13 to further promote the separation between the upper pressing plate 4 and the printed circuit board.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative work.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lamination device for printed circuit board processing, including a base (1), characterized in that: A U-shaped frame (2) is installed on the outer side of the top end of the base (1), and an electric telescopic rod (3) is installed at the top end of the U-shaped frame (2). The bottom end of the electric telescopic rod (3) penetrates through the top end of the U-shaped frame (2) and is connected to an upper pressing plate (4). A lower pressing plate (5) is correspondingly installed at the top end of the base (1) below the upper pressing plate (4). Side clamping blocks (6) are installed at the four edges of the top end of the lower pressing plate (5). Both sides of the upper pressing plate (4) are rotationally connected to rotating plates (7) through support blocks and rotating shafts. A plurality of connecting plates (8) are evenly installed at the bottom end of the rotating plate (7) on the side close to the electric telescopic rod (3). One end of the plurality of connecting plates (8) is connected to a knocking column (9), and the bottom end of the knocking column (9) abuts against the top end of the upper pressing plate (4). First magnets (11) are embedded at the bottom ends of the plurality of connecting plates (8), and second magnets (12) are correspondingly installed at the top end of the upper pressing plate (4) below the first magnets (11). The first magnets (11) and the second magnets (12) attract each other. Flipping mechanisms (10) are arranged at the top ends of the left and right rotating plates (7) on the side far from the electric telescopic rod (3), so that the upper pressing plate (4) drives the rotating plate (7) to flip during the rising process, and the knocking column (9) knocks on the upper pressing plate (4).

2. The lamination device for printed circuit board processing according to claim 1, wherein: The flipping mechanism (10) includes vertical plates (1004) installed on the top end of the base (1) close to the outer side of the upper pressing plate (4), and a plurality of guide plates (1003) are evenly installed on the inner side of the vertical plates (1004). Hinges (1002) are installed on both sides of the top end of the rotating plate (7), and a flipping plate (1001) is connected to the outer sides of the bottom ends of the two hinges (1002).

3. A pressing device for printed circuit board processing according to claim 2, characterized in that: During the up and down movement of the flipping plate (1001), the outermost edge of the flipping plate (1001) can contact the upper and lower end faces of the guide plate (1003). There are two vertical plates (1004), and four guide plates (1003) are arranged on each vertical plate (1004). The guide plates (1003) are longitudinally distributed at equal intervals on the vertical plates (1004).

4. A pressing device for printed circuit board processing according to claim 2, characterized in that: The flipping plate (1001) forms a flipping structure with the rotating plate (7) through the cooperation of the hinge (1002), and the inner side of the flipping plate (1001) abuts against the outer side of the rotating plate (7).

5. The pressing device for printed circuit board processing according to claim 2, characterized in that: A structure with a Z-shaped cross-section is formed among the flipping plate (1001), the rotating plate (7), and the connecting plate (8), and the position of the flipping plate (1001) is higher than the position of the connecting plate (8).

6. A lamination device for printed circuit board processing according to claim 1, characterized in that: Air cylinders (16) are installed at the top ends of the upper pressing plate (4) on both sides of the electric telescopic rod (3), and plugging rods (17) penetrate through the interiors of the air cylinders (16). The top ends of the plugging rods (17) extend above the air cylinders (16) and are connected to the top end inside the U-shaped frame (2). Air outlet holes (13) are evenly communicated between the bottom ends of the air cylinders (16) and the upper pressing plate (4). Check valves (14) are arranged inside the air outlet holes (13). One-way air inlet pipes (15) are installed on both sides of the air cylinders (16).

7. A lamination device for printed circuit board processing according to claim 6, characterized in that: The air cylinder (16) is arranged between the electric telescopic rod (3) and the rotating plate (7). There are two air cylinders (16), and each air cylinder (16) is provided with four air outlet holes (13), and the four air outlet holes (13) are distributed in a cross shape.

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