Anti-interference FPC edge pressing mechanism

Abstract

The utility model discloses an anti-interference FPC edge pressing mechanism, and relates to the technical field of edge pressing mechanisms. A vacuum chuck; the FPC body is placed on the surface of the top end of the vacuum chuck; the edge pressing assembly comprises an edge pressing seat, and the edge pressing seat is provided with a bevel edge; a pressing block is arranged on one side of the edge pressing base. One end of the pressing block is fixedly connected with the even pressing head. Edge pressing cylinders are arranged at the bottom ends of the pressing heads; the ash removal assembly is arranged on the side, away from the edge pressing base, of the pressing block. The FPC body is placed at the upper end of the vacuum suction cup, the vacuum suction cup is started, the FPC body is fixed to the vacuum suction cup through the vacuum suction cup, then the edge pressing air cylinder is started, the edge pressing air cylinder drives the pressing block to fall, and when the pressing head and the bevel edge are matched to press the FPC body, the top end of the pressing block is just flush with the surface of the edge pressing base and the surface of the vacuum suction cup. Therefore, the condition of inconvenience in operation on the upper surface is prevented; and by arranging the dust removal assembly, dust on the film is removed when the film is torn.

Description

Technical Field

[0001] The utility model relates to the technical field of edge pressing mechanisms, in particular to an anti-interference FPC edge pressing mechanism. Background Art

[0002] FPC, in Chinese, is called flexible printed circuit board or flexible circuit board, or soft board for short. It is a printed circuit made of flexible insulating substrate, the main substrate of which is polyimide or polyester film. FPC can be bent, wound, and folded freely, can be arranged arbitrarily according to the spatial layout requirements, and can be moved and stretched arbitrarily in three-dimensional space to achieve the integration of component assembly and wire connection; compared with rigid circuit board (PCB), FPC is smaller in size, lighter in weight, and thinner in thickness, which helps to reduce the size and weight of electronic products.

[0003] The manufacturing process of FPC (flexible printed circuit board) is a process that includes multiple steps. First, material preparation is carried out by cutting substrates such as polyester film and preparing conductive, insulating and other materials. Next, copper foil is pasted on the substrate and cured to form a conductive path. Subsequently, the circuit pattern is drawn using photolithography technology, and the excess is removed by etching. Next, an insulating layer is covered to protect the circuit, and pads are made to connect other electronic components. After that, molding and surface coating are carried out according to design requirements to enhance the mechanical strength and temperature resistance of the FPC. After heat treatment, electrical performance tests are carried out to ensure quality. Finally, packaging and delivery are carried out. The entire process strictly controls each step to ensure the high quality and high performance of the FPC.

[0004] When a large FPC needs to be fixed when tearing the film on it, the common method is to use a vacuum to suck the FPC. However, some FPC film tearing operations cannot be sucked by a vacuum because of the strong viscosity of the film. Therefore, one side of the FPC needs to be pressed. After the product is pressed by a common mechanism, the mechanism that presses the product will be higher than the product itself. Generally, the film is torn off by a machine, and the part where the mechanism that presses the product is higher than the product will cause inconvenience when working on it. Utility Model Content

[0005] The utility model aims to provide an anti-interference FPC edge pressing mechanism to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An anti-interference FPC edge pressing mechanism comprises: a base; a vacuum suction cup, which is fixedly connected to the upper end of the base; an FPC body, which is placed on the top surface of the vacuum suction cup; an edge pressing assembly, which is fixedly connected to one side of the vacuum suction cup, and the edge pressing assembly comprises an edge pressing seat, and a side of the edge pressing seat away from the vacuum suction cup is cut with a bevel for edge pressing the FPC; a pressing block is arranged on the side of the edge pressing seat away from the vacuum suction cup, and a pressing head for edge pressing the FPC is fixedly connected to one end of the pressing block, the upper end of the pressing head is horizontal, and the bottom surface is a bevel matching the bevel; an edge pressing cylinder is arranged at the bottom end of the pressing head, and the movable end of the edge pressing cylinder is fixedly connected to the bottom end of the pressing head; a dust cleaning assembly, which is arranged on the side of the pressing block away from the edge pressing seat, and the dust cleaning assembly is used to clean dust on the FPC.

[0008] When tearing the FPC film, put the FPC body into the upper end of the vacuum suction cup and start the vacuum suction cup. The vacuum suction cup fixes the FPC body on the vacuum suction cup, then point the pre-started end of the FPC toward the side of the edge pressing component and press the started FPC body into the inclined surface in advance, then start the edge pressing cylinder, the edge pressing cylinder drives the pressing block to fall, when the pressure head and the inclined edge cooperate to press the FPC body, the top of the pressing block is just flush with the edge pressing seat and the surface of the vacuum suction cup, thereby preventing inconvenience from occurring when working on it; the film on the surface of the FPC can protect the FPC, and dust generally remains on these films. When tearing the film, this dust easily falls onto the FPC board and has various harmful effects on the FPC board. By setting a cleaning component, the cleaning component removes the dust on the film when tearing the film to prevent the FPC from being harmfully affected by the dust.

[0009] A further improvement of the technical solution of the utility model is that: the dust cleaning component includes a bottom rod and a bottom plate, the bottom rod and the bottom plate are fixedly connected, and the bottom rod and the base are fixedly connected; a U-shaped piston cylinder is provided above the bottom plate, one end of the U-shaped piston cylinder is a compression end, and the other end is an air outlet end, a piston is slidably connected to the inner wall of the compression end, a piston rod is fixedly connected to the piston, and a first spring is sleeved on the piston rod; a pressure plate is fixedly connected to the upper end of the piston rod; a jet nozzle is provided at the top of the air outlet end.

[0010] The above-mentioned technical solution is adopted. In this solution, when the edge pressing cylinder drives the pressing block to descend, the pressing block will squeeze the pressing plate. The descent of the pressing plate drives the piston to squeeze the air in the air compression end, squeeze the air to the air outlet end, and make the air spray out from the air jet port, thereby blowing off the dust on the FPC film and preventing the dust from falling onto the FPC board after the film is torn off.

[0011] A further improvement of the technical solution of the utility model is that the top of the air outlet end is higher than the top of the pressure plate and the cross section of the air outlet end is smaller than the cross section of the air compression end.

[0012] The above technical solution is adopted, in which the top of the air outlet end is higher than the top of the pressure plate and the cross-section of the air outlet end is smaller than the cross-section of the air compression end. The cross-section of the air outlet end is small. When the gas from the air compression end enters the air outlet end, the speed will increase. The higher the flow rate of the air ejected from the jet port, the stronger the dust cleaning ability will be.

[0013] A further improvement of the technical solution of the utility model is that a limiting block is symmetrically fixedly connected to the edge pressing seat.

[0014] The above technical solution is adopted. In the process of assembling the FPC, it is necessary to ensure its accurate placement and stable fixation. These limit blocks can not only provide a clear placement boundary to help workers quickly and accurately position the FPC, but also play a fixing role after placement to prevent the FPC from displacement or offset in subsequent operations. It not only improves the assembly efficiency, but also ensures the stability and reliability of the product.

[0015] A further improvement of the technical solution of the utility model is that the length of the bevel and the bevel groove is 4 mm, and the angle between the bevel and the horizontal plane is 30 degrees.

[0016] The above technical solution is adopted. The edge width of the FPC in this solution usually depends on the specific design requirements and manufacturing process. Generally speaking, the edge width of the FPC shall not be less than 1.5 times the curled copper foil. This is to ensure that the copper foil layer of the FPC will not crack or break when bent or folded. The angle between the bevel and the horizontal plane is 30 degrees, the bending angle is not large, and the damage to the FPC is also small.

[0017] The further improvement of the technical solution of the utility model is that: a second spring is provided at the bottom end of the piston cylinder, and the second spring is fixedly connected to the bottom plate and the piston cylinder; and the outer side of the air inlet is slidably connected to the edge pressure seat.

[0018] The above-mentioned technical solution is adopted, in which a second spring is set, and the spring constant of the second spring is greater than the spring constant of the first spring. When the pressure block presses the pressure plate, the first spring is first completely contracted. When the pressure plate is pressed to the bottom end of the pneumatic cylinder, the first spring will continue to contract, so that the air jet port drops to be flush with the surface of the pressure block.

[0019] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0020] 1. The utility model provides an anti-interference FPC edge pressing mechanism. The FPC body is placed on the upper end of the vacuum suction cup and the vacuum suction cup is started. The vacuum suction cup fixes the FPC body on the vacuum suction cup. Then, the pre-started end of the FPC is directed toward the side of the edge pressing component and the started FPC body is pre-pressed into the inclined surface. Then, the edge pressing cylinder is started. The edge pressing cylinder drives the pressing block to fall. When the pressure head cooperates with the inclined edge to press the FPC body, the top of the pressing block is just flush with the edge pressing seat and the surface of the vacuum suction cup, thereby preventing inconvenience from occurring when working on it. The film on the surface of the FPC can protect the FPC. Dust generally remains on these films. When the film is torn off, the dust easily falls onto the FPC board and has various harmful effects on the FPC board. By setting a dust cleaning component, the dust cleaning component removes the dust on the film when the film is torn off, thereby preventing the FPC from being harmfully affected by the dust.

[0021] 2. The utility model provides an anti-interference FPC edge pressing mechanism. By setting anti-skid rubber, the anti-skid rubber can increase the friction between the FPC and the bevel and the bevel of the pressure head, and can also reduce the damage of the FPC due to extrusion through the deformation of the rubber, thereby protecting the FPC.

[0022] 3. The utility model provides an anti-interference FPC edge pressing mechanism. By setting a second spring, the spring constant of the second spring is greater than the spring constant of the first spring. When the pressure block presses the pressure plate, the first spring is first completely contracted. When the pressure plate is pressed to the bottom end of the pneumatic cylinder, the first spring will continue to contract, so that the air jet port drops to be flush with the surface of the pressure block. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the structure of the utility model during edge pressing;

[0025] Figure 2 This is a schematic diagram of the structure before edge pressing of the utility model;

[0026] Figure 3 This is a first structural schematic diagram of the utility model;

[0027] Figure 4 It is a second structural schematic diagram of the utility model;

[0028] Figure 5 It is a rear view structural schematic diagram of the utility model;

[0029] Figure 6 It is a front structural schematic diagram of the utility model;

[0030] Figure 7 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0031] In the figure: 1. base; 2. vacuum suction cup; 3. FPC body; 4. edge pressing seat; 5. bevel; 6. pressing block; 7. pressing head; 8. edge pressing cylinder; 9. bottom plate; 10. piston cylinder; 11. air compression end; 12. air outlet end; 13. first spring; 14. pressing plate; 15. air jet; 16. second spring; 17. limit block. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the embodiments:

[0033] Example 1

[0034] like Figure 1-7 As shown, the utility model provides an anti-interference FPC edge pressing mechanism, comprising: a base 1; a vacuum suction cup 2, which is fixedly connected to the upper end of the base 1; an FPC body 3, which is placed on the top surface of the vacuum suction cup 2; an edge pressing assembly, which is fixedly connected to one side of the vacuum suction cup 2, and the edge pressing assembly includes an edge pressing seat 4, and a side of the edge pressing seat 4 away from the vacuum suction cup 2 is cut with a bevel 5 for FPC edge pressing; a pressing block 6 is arranged on the side of the edge pressing seat 4 away from the vacuum suction cup 2, and a pressing head 7 for FPC edge pressing is fixedly connected to one end of the pressing block 6, and the upper end of the pressing head 7 is horizontal, and the bottom surface is a bevel matching the bevel 5; an edge pressing cylinder 8 is arranged at the bottom end of the pressing head 7, and the movable end of the edge pressing cylinder 8 is fixedly connected to the bottom end of the pressing head 7; a dust cleaning assembly, which is arranged on the side of the pressing block 6 away from the edge pressing seat 4, and the dust cleaning assembly is used to clean the dust on the FPC.

[0035] In this embodiment, when tearing the FPC film, the FPC body 3 is placed on the upper end of the vacuum suction cup 2 and the vacuum suction cup 2 is started. The vacuum suction cup 2 fixes the FPC body 3 on the vacuum suction cup 2, and then the pre-started end of the FPC is directed toward the side of the edge pressing component and the started FPC body 3 is pre-pressed into the inclined surface, and then the edge pressing cylinder 8 is started. The edge pressing cylinder 8 drives the pressing block 6 to fall. When the pressure head 7 cooperates with the inclined edge 5 to press the FPC body 3, the top of the pressing block 6 is just flush with the edge pressing seat 4 and the surface of the vacuum suction cup 2, thereby preventing inconvenience from occurring when working on it; the film on the surface of the FPC can protect the FPC. Dust generally remains on these films. When tearing the film, this dust easily falls onto the FPC board and has various harmful effects on the FPC board. By setting a cleaning component, the cleaning component removes the dust on the film when tearing the film to prevent the FPC from being harmfully affected by the dust.

[0036] like Figure 1-5As shown, in the present embodiment, preferably, the dust cleaning assembly includes a bottom rod and a bottom plate 9, the bottom rod is fixedly connected to the bottom plate 9, and the bottom rod is fixedly connected to the base 1; a U-shaped piston cylinder 10 is provided above the bottom plate 9, one end of the U-shaped piston cylinder 10 is a gas compression end 11, and the other end is a gas outlet end 12, a piston is slidably connected to the inner wall of the gas compression end 11, a piston rod is fixedly connected to the piston, and a first spring 13 is sleeved on the piston rod; a pressure plate 14 is fixedly connected to the upper end of the piston rod; a jet nozzle 15 is provided at the top of the gas outlet end 12.

[0037] When the edge pressing cylinder 8 drives the pressing block 6 to descend, the pressing block 6 will squeeze the pressing plate 14. The descending of the pressing plate 14 drives the piston to squeeze the air in the air compression end 11, squeezes the air to the air outlet end 12, and makes the air spray out from the air jet 15, so as to blow off the dust on the FPC film and prevent the dust from falling on the FPC board after the film is torn.

[0038] The top of the gas outlet end 12 is higher than the top of the pressure plate 14 and the cross section of the gas outlet end 12 is smaller than the cross section of the gas compression end 11 .

[0039] The top of the air outlet end 12 is higher than the top of the pressure plate 14 and the cross-section of the air outlet end 12 is smaller than the cross-section of the air compression end 11. The cross-section of the air outlet end 12 is small. When the gas from the air compression end 11 enters the air outlet end 12, the speed will increase. The higher the flow rate of the air ejected from the jet port 15, the stronger the dust cleaning ability will be.

[0040] The edge pressing seat 4 is symmetrically fixedly connected with a limiting block 17 .

[0041] By providing the limit block 17, a limit is provided when the FPC body 3 is placed, so as to facilitate positioning and fixing.

[0042] The length of the oblique edge 5 and the oblique groove is 4 mm, and the angle between the oblique edge 5 and the horizontal plane is 30 degrees.

[0043] The edge width of the FPC usually depends on the specific design requirements and manufacturing process. Generally speaking, the edge width of the FPC should not be less than 1.5 times the curled copper foil. This is to ensure that the copper foil layer of the FPC will not crack or break when bent or folded. The angle between the bevel 5 and the horizontal plane is 30 degrees, the bending angle is not large, and the damage to the FPC is also small.

[0044] Anti-skid rubber is provided on the inclined surfaces of the oblique edge 5 and the pressing block 6 to increase the friction between the FPC body 3 and the oblique edge 5 and the pressing block 6 .

[0045] By providing the anti-skid rubber, the anti-skid rubber can improve the friction between the FPC and the inclined edge 5 and the inclined surface of the pressure head 7, and can also reduce the damage of the FPC due to squeezing through the deformation of the rubber, thereby protecting the FPC.

[0046] Example 2

[0047] like Figure 5-6 As shown, based on Example 1, the utility model provides a technical solution: preferably, a second spring 16 is provided at the bottom end of the piston cylinder 10, and the second spring 16 is fixedly connected to the bottom plate 9 and the piston cylinder 10; the outer side of the air inlet is slidably connected to the edge pressure seat 4.

[0048] In this embodiment, by setting the second spring 16, the spring constant of the second spring 16 is greater than the spring constant of the first spring 13. When the pressure block 6 presses the pressure plate 14, the first spring 13 is first completely contracted. When the pressure plate 14 is pressed to the bottom end of the pneumatic cylinder, the first spring 13 will continue to contract, so that the air injection port 15 drops to be flush with the surface of the pressure block 6.

[0049] The working principle of the anti-interference FPC edge pressing mechanism is described in detail below.

[0050] like Figure 1-7 As shown, when tearing the FPC film, the FPC body 3 is placed on the upper end of the vacuum suction cup 2 and the vacuum suction cup 2 is started. The vacuum suction cup 2 fixes the FPC body 3 on the vacuum suction cup 2, and then the pre-started end of the FPC is directed toward the side of the edge pressing component and the started FPC body 3 is pre-pressed into the inclined surface, and then the edge pressing cylinder 8 is started. The edge pressing cylinder 8 drives the pressing block 6 to fall. When the pressure head 7 cooperates with the bevel 5 to press the FPC body 3, the top of the pressing block 6 is just flush with the edge pressing seat 4 and the surface of the vacuum suction cup 2, thereby preventing inconvenience from occurring when working on it; the film on the surface of the FPC can protect the FPC. Generally, dust will remain on these films, and these dusts are easy to fall onto the FPC when tearing the film. The PC board has a variety of harmful effects on the FPC board. When the edge pressing cylinder 8 drives the pressing block 6 to descend, the pressing block 6 will squeeze the pressing plate 14. The descending of the pressing plate 14 drives the piston to squeeze the air in the air compression end 11, squeezes the air to the air outlet 12, and makes the air ejected from the air jet 15, so as to blow off the dust on the FPC film and prevent the dust from falling on the FPC board after the film is torn off. In addition, by setting the second spring 16, the spring constant of the second spring 16 is greater than the spring constant of the first spring 13. When the pressing block 6 presses the pressing plate 14, the first spring 13 will first be completely contracted. When the pressing plate 14 is pressed to the bottom end of the pneumatic cylinder, the first spring 13 will continue to contract, so that the air jet 15 will drop to be flush with the surface of the pressing block 6.

[0051] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An anti-interference FPC edge pressing mechanism, characterized in that: include: Base (1); A vacuum suction cup (2), wherein the vacuum suction cup (2) is fixedly connected to the upper end of the base (1); An FPC body (3), wherein the FPC body (3) is placed on the top surface of the vacuum suction cup (2); A pressing assembly, wherein the pressing assembly is fixedly connected to one side of the vacuum suction cup (2), and the pressing assembly comprises a pressing seat (4), and a bevel (5) for pressing the FPC is cut on the side of the pressing seat (4) away from the vacuum suction cup (2); a pressing block (6) is arranged on the side of the pressing seat (4) away from the vacuum suction cup (2), and one end of the pressing block (6) is fixedly connected to a pressing head (7) for pressing the FPC, and the upper end of the pressing head (7) is horizontal, and the bottom surface is a bevel that matches the bevel (5); a pressing cylinder (8) is arranged at the bottom end of the pressing head (7), and the movable end of the pressing cylinder (8) is fixedly connected to the bottom end of the pressing head (7); A dust cleaning component is arranged on a side of the pressing block (6) away from the edge pressing seat (4), and is used to clean dust on the FPC.

2. The anti-interference FPC edge pressing mechanism according to claim 1, characterized in that: The dust cleaning assembly comprises a bottom rod and a bottom plate (9), wherein the bottom rod is fixedly connected to the bottom plate (9), and the bottom rod is fixedly connected to the base (1); a U-shaped piston cylinder (10) is arranged above the bottom plate (9), one end of the U-shaped piston cylinder (10) is a gas compression end (11), and the other end is a gas outlet end (12); a piston is slidably connected to the inner wall of the gas compression end (11), a piston rod is fixedly connected to the piston, and a first spring (13) is sleeved on the piston rod; a pressure plate (14) is fixedly connected to the upper end of the piston rod; and a jet nozzle (15) is arranged at the top of the gas outlet end (12).

3. The anti-interference FPC edge pressing mechanism according to claim 2, characterized in that: The top end of the air outlet end (12) is higher than the top end of the pressure plate (14), and the cross section of the air outlet end (12) is smaller than the cross section of the air compression end (11).

4. The anti-interference FPC edge pressing mechanism according to claim 3, characterized in that: A second spring (16) is provided at the bottom end of the piston cylinder (10), and the second spring (16) is fixedly connected to the bottom plate (9) and the piston cylinder (10); the outer side of the air inlet is slidably connected to the edge pressure seat (4).

5. The anti-interference FPC edge pressing mechanism according to claim 4, characterized in that: The length of the oblique edge (5) and the oblique groove is 4 mm, and the angle between the oblique edge (5) and the horizontal plane is 30 degrees.

6. The anti-interference FPC edge pressing mechanism according to claim 5, characterized in that: The edge pressing seat (4) is symmetrically fixedly connected with a limiting block (17).

7. The anti-interference FPC edge pressing mechanism according to claim 6, characterized in that: Anti-skid rubber is provided on the inclined surfaces of the inclined edge (5) and the pressing block (6) for increasing the friction between the FPC body (3), the inclined edge (5) and the pressing block (6).

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