Groove coating repairing device

Abstract

The utility model relates to the technical field of circuit board manufacturing, in particular to a groove coating repairing device which comprises a supporting mechanism, an elastic compression roller and a first driving mechanism, a first connecting assembly and a second connecting assembly are arranged on the supporting mechanism, and a circuit board is arranged on the first connecting assembly; the elastic compression roller is rotationally arranged on the second connecting assembly, and the elastic compression roller is in extrusion contact with the board surface of the circuit board; the first driving mechanism drives the first connecting assembly or the second connecting assembly to move and can drive the elastic pressing roller to roll over the groove, the part, opposite to the groove, of the elastic pressing roller is pressed into the groove and extrudes the coating on the groove wall of the groove towards the circumferential side of the groove, the elastic pressing roller can extrude the coating on the corner of the groove, the coating on the corner of the groove wall of the groove is compacted, and therefore the coating on the corner of the groove wall of the groove is formed. And holes at the corners of the grooves are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board manufacturing, in particular to a groove coating repair device. Background Art

[0002] For a circuit board with grooves, i.e., a CAVITY PCB, during the circuit board processing, it is necessary to coat solder resist on both the surface layer of the circuit board and the groove wall of the grooves. The grooves are mostly polygonal grooves. When coating the solder resist, the flow of the solder resist at the corners of the grooves is not smooth, and holes are likely to appear, which has an adverse effect on the subsequent processing of the circuit board. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is that currently, the flow of the solder resist at the corners of the grooves of the PCB board is not smooth, and holes are likely to appear.

[0004] In order to solve the above technical problem, the purpose of the utility model is to provide a groove coating repair device for repairing a circuit board with grooves, wherein a coating is coated in the grooves. The groove coating repair device includes:

[0005] A support mechanism, on which a first connection component and a second connection component are provided, and the circuit board is arranged on the first connection component;

[0006] An elastic pressing roller, which is rotatably arranged on the second connection component and is in pressing contact with the board surface of the circuit board;

[0007] A first driving mechanism, which is used to drive the first connection component or the second connection component to move, so as to drive the elastic pressing roller to roll over the groove, and the part of the elastic pressing roller opposite to the groove is pressed into the groove and extrudes the coating at the groove wall of the groove towards the periphery of the groove.

[0008] As a preferred scheme, there are two elastic pressing rollers, both of which are arranged on the second connection component and are respectively arranged on both sides of the circuit board, and the two elastic pressing rollers are arranged oppositely.

[0009] As a preferred scheme, the second connection component includes a lead screw, a first slider and a second slider. The lead screw is provided with a forward thread section and a reverse thread section. The first slider is threadedly assembled on the forward thread section, and the second slider is threadedly assembled on the reverse thread section. The two elastic pressing rollers are respectively rotatably connected to the first slider and the second slider.

[0010] As a preferred scheme, the groove coating repair device includes a motor, and the output end of the motor is connected to the lead screw.

[0011] As a preferred solution, the second connection component includes a guide rail, a third slider, and a fourth slider. The third slider and the fourth slider are both arranged on the guide rail. The second connection component further includes a second driving mechanism for driving the third slider and the fourth slider to approach or move away from each other.

[0012] As a preferred solution, the first connection component includes a connecting rod and a clamping member arranged on the connecting rod. The end of the circuit board is clamped in the clamping member, and the first driving mechanism is connected to the connecting rod.

[0013] As a preferred solution, the two elastic pressure rollers are arranged horizontally at intervals, the circuit board is arranged vertically, and the driving mechanism is used to drive the connecting rod to move up and down.

[0014] As a preferred solution, the elastic pressure roller includes a rigid mandrel and an elastic rubber sleeve fixedly sleeved outside the rigid mandrel.

[0015] As a preferred solution, the elastic rubber sleeve is made of polyethylene.

[0016] As a preferred solution, the driving mechanism is an electric telescopic rod.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The groove coating refurbishing device of the present utility model is used to refurbish a circuit board with grooves coated with a coating. The groove coating refurbishing device includes a support mechanism, an elastic pressure roller, and a first driving mechanism. A first connection component and a second connection component are provided on the support mechanism, and the circuit board is arranged on the first connection component; the elastic pressure roller is rotatably arranged on the second connection component, and the elastic pressure roller is in extrusion contact with the plate surface of the circuit board; the first driving mechanism drives the first connection component or the second connection component to move, which can drive the elastic pressure roller to roll over the groove. The part of the elastic pressure roller opposite to the groove is pressed into the groove and extrudes the coating at the groove wall on the circumferential side of the groove. The elastic pressure roller can extrude the coating at the corner of the groove, compact the coating at the corner of the groove wall, and avoid the appearance of holes at the corner of the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Is an axonometric view of the groove coating refurbishing device of the present utility model;

[0020] Figure 2 Is the front view of the groove coating refurbishing device of the present utility model;

[0021] Figure 3 Is the side view of the groove coating refurbishing device of the present utility model;

[0022] Figure 4 Is the structural schematic diagram of the elastic pressure roller;

[0023] In the figure, 100 is a circuit board, 101 is a groove, 1 is a first connection component, 11 is a connecting rod, 12 is a clamping member, 2 is a second connection component, 21 is a lead screw, 22 is a first slider, 23 is a second slider, 24 is a support rod, 25 is a guide rod, 3 is an elastic pressing roller, 31 is a rigid mandrel, 32 is an elastic rubber sleeve, and 4 is a first driving mechanism. Specific embodiments

[0024] The following will further describe in detail the specific embodiments of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0025] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. It should be understood that the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0026] The groove coating refurbishing device of the present invention is used to refurbish a circuit board 100 having a groove 101, and a coating is applied in the groove 101. In this embodiment, the coating is a solder resist, such as Figures 1 to 4 As shown, a preferred embodiment of the groove coating refurbishing device of the present invention includes:

[0027] A support mechanism, on which a first connection component 1 and a second connection component 2 are provided, and the circuit board 100 is arranged on the first connection component 1;

[0028] An elastic pressing roller 3, which is rotatably arranged on the second connection component 2 and is in pressing contact with the board surface of the circuit board 100. Among them, the elastic pressing roller 3 can be made of a plastic material with good elasticity as a whole, or a composite structure can be adopted, that is, the elastic pressing roller 3 includes a rigid mandrel 31 and an elastic rubber sleeve 32 fixedly sleeved outside the rigid mandrel 31. The elastic rubber cylinder is made of polyethylene, and the rigid mandrel 31 is rotatably connected to the second connection component 2. The rigid mandrel 31 ensures the overall structural strength of the elastic pressing roller 3, and the elastic rubber cylinder ensures the elasticity of the elastic pressing roller 3, so that the depth of the elastic pressing roller 3 pressed into the groove 101 is large enough;

[0029] The first driving mechanism 4 is used to drive the first connection component 1 or the second connection component 2 to move. When the first driving mechanism 4 drives the first connection component 1 to move, it can drive the circuit board 100 to move. Since the elastic pressing roller 3 is in extrusion contact with the circuit board 100, when the circuit board 100 moves, the frictional force between the outer peripheral side of the elastic pressing roller 3 and the circuit board 100 is relatively large, and the circuit board 100 can drive the elastic pressing roller 3 to rotate. When the elastic pressing roller 3 rotates to face the groove 101, under the action line of the extrusion force, the part of the elastic pressing roller 3 facing the groove 101 protrudes into the groove 101, and the elastic pressing roller 3 protruding into the groove 101 presses the solder resist located at the groove wall of the groove 101 towards the circumferential side of the groove 101, thereby compacting the coating at the corner of the groove 101. When the first driving mechanism 4 drives the second connection component 2 to move, the elastic pressing roller 3 rolls on the board surface of the circuit board 100, and the elastic pressing roller 3 will roll from one side of the groove 101 to the other side of the groove 101. When the elastic pressing roller 3 rolls over the groove 101, under the extrusion force, the part of the elastic pressing roller 3 facing the groove 101 is pressed into the groove 101 and presses the coating at the groove wall of the groove 101 towards the circumferential side of the groove 101, thereby compacting the coating at the corner of the groove 101. Therefore, the groove coating renovation device of the present utility model can compact the coating at the corner of the groove 101. In this embodiment, the coating is solder resist, that is, the groove coating renovation device can compact the holes at the corner of the groove 101 to avoid the existence of holes in the solder resist at the corner of the groove 101.

[0030] In this embodiment, two elastic pressing rollers 3 are provided. The two elastic pressing rollers 3 are both arranged on the second connection component 2 and are respectively arranged on both sides of the circuit board 100, and the two elastic pressing rollers 3 are arranged oppositely. Specifically, the two elastic pressing rollers 3 are arranged horizontally at intervals, the circuit board 100 is arranged vertically, the first connection component 1 includes a connecting rod 11 and a clamping member 12 arranged on the connecting rod 11, and the end of the circuit board 100 is clamped in the clamping member 12. The first driving mechanism 4 is used to drive the connecting rod 11 to move up and down, and the up and down movement of the connecting rod 11 drives the circuit board 100 to move up and down. Driven by the circuit board 100, the two elastic pressing rollers 3 roll over the groove 101 at the same time, increasing the extrusion force of the elastic pressing rollers 3 on the groove wall of the groove 101 and increasing the compaction effect. In other embodiments of the present utility model, only one elastic pressing roller 3 can be provided. A platform is arranged on the first connection component 1, one board surface of the circuit board 100 is laid flat and fixed on the platform, and the other board surface of the circuit board 100 is in extrusion contact with the elastic pressing roller 3, and the single elastic pressing roller 3 is used to compact the coating on the side wall of the groove 101. To ensure the stability of the two elastic pressing rollers 3, in this embodiment, the second connection component 2 includes two groups of support structures. The two groups of support structures are respectively arranged at both ends of the elastic pressing roller 3. One end of the elastic pressing roller 3 is rotatably connected to one of the groups of support structures, and the other end of the elastic pressing roller 3 is rotatably connected to the other group of support structures.

[0031] In this embodiment, the second connecting component 2 includes a lead screw 21, a first slider 22 and a second slider 23. The lead screw 21 is provided with a forward thread section and a reverse thread section. The first slider 22 is threadedly assembled on the forward thread section, and the second slider 23 is threadedly assembled on the reverse thread section. Two elastic rollers 3 are respectively rotatably connected to the first slider 22 and the second slider 23. Specifically, before the circuit board 100 is lowered by the first driving mechanism 4, the lead screw 21 is rotated to make the first slider 22 and the second slider 23 move away from each other, increasing the distance between the two elastic rollers 3. Then, the first driving mechanism 4 is used to drive the circuit board 100 downward until the groove 101 part of the circuit board 100 is all below the axes of the two elastic rollers 3. Then, the lead screw 21 is reversed to make the first slider 22 and the second slider 23 move closer to each other, and the two elastic rollers 3 respectively press on both sides of the circuit board 100. After that, the first driving mechanism 4 is used to lift the circuit board 100 upward, and the two elastic rollers 3 roll over each groove 101 to realize the compaction of the coating at the corners of each groove 101. In this embodiment, each group of support structures includes two support rods 24 and a guide rod 25. The two support rods 24 are arranged vertically. Sliders and the lead screw 21 are provided at both ends of the elastic roller 3. The two ends of each lead screw 21 are respectively rotatably connected to the upper ends of the two support rods 24 in the same group. The guide rod 25 is arranged parallel and spaced apart from the lead screw 21. The two ends of the guide rod 25 are respectively fixedly connected to the two support rods 24. The first slider 22 and the second slider 23 are slidably sleeved outside the guide rod 25. The first driving mechanism 4 is an electric telescopic rod. In other embodiments of the present invention, the first driving mechanism 4 can be a hydraulic cylinder or a pneumatic cylinder.

[0032] In this embodiment, the groove coating refurbishing device includes a motor, and the output end of the motor is connected to the lead screw 21. In other embodiments of the present invention, the motor may not be provided, and a handwheel is provided at the end of the lead screw 21, and the position of the first slider 22 and the second slider 23 is adjusted by manually rotating the handwheel.

[0033] In other embodiments of the present invention, the second connecting component 2 includes a guide rail, a third slider and a fourth slider. The third slider and the fourth slider are both arranged on the guide rail. The second connecting component 2 further includes a second driving mechanism for driving the third slider and the fourth slider to move closer to or away from each other. Specifically, the second driving mechanism can be two electric telescopic rods, and the two electric telescopic rods are respectively connected to the third slider and the fourth slider.

[0034] In summary, the groove coating renovation device of the present utility model is used to renovate a circuit board 100 with a groove 101 coated with a coating. The groove coating renovation device includes a support mechanism, an elastic pressing roller 3, and a first driving mechanism 4. The support mechanism is provided with a first connection component 1 and a second connection component 2. The circuit board 100 is arranged on the first connection component 1. The elastic pressing roller 3 is rotatably arranged on the second connection component 2, and the elastic pressing roller 3 is in extrusion contact with the board surface of the circuit board 100. The first driving mechanism 4 drives the first connection component 1 or the second connection component 2 to move, which can drive the elastic pressing roller 3 to roll over the groove 101. The part of the elastic pressing roller 3 opposite to the groove 101 is pressed into the groove 101 and extrudes the coating at the groove wall of the groove 101 towards the circumferential side of the groove 101. The elastic pressing roller 3 can extrude the coating at the corner of the groove 101, compact the coating at the corner of the groove wall of the groove 101, and avoid the appearance of holes at the corner of the groove 101.

[0035] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.

Claims

1. A groove coating refurbishment device for refurbishing a circuit board (100) having a groove (101), wherein a coating is applied in the groove (101), characterized in that, Comprising: A support mechanism, on which a first connection component (1) and a second connection component (2) are provided, and the circuit board (100) is arranged on the first connection component (1); An elastic pressure roller (3), which is rotatably arranged on the second connection component (2), and the elastic pressure roller (3) is in pressing contact with the board surface of the circuit board (100); A first driving mechanism (4), which is used to drive the first connection component (1) or the second connection component (2) to move, so as to drive the elastic pressure roller (3) to roll over the groove (101), and the part of the elastic pressure roller (3) opposite to the groove (101) is pressed into the groove (101) and extrudes the coating at the groove wall of the groove (101) towards the periphery of the groove (101).

2. The groove coating refurbishing device according to claim 1, wherein, There are two elastic pressure rollers (3), both of which are arranged on the second connection component (2) and are respectively arranged on both sides of the circuit board (100), and the two elastic pressure rollers (3) are arranged oppositely.

3. The groove coating refurbishment device according to claim 2, wherein The second connection component (2) includes a lead screw (21), a first slider (22) and a second slider (23). The lead screw (21) is provided with a forward thread section and a reverse thread section. The first slider (22) is threadedly assembled on the forward thread section, and the second slider (23) is threadedly assembled on the reverse thread section. The two elastic pressure rollers (3) are respectively rotatably connected to the first slider (22) and the second slider (23).

4. The recess coating refurbishing device according to claim 3, wherein, The groove coating refurbishing device includes a motor, and the output end of the motor is connected to the lead screw (21).

5. The groove coating refurbishment device according to claim 2, characterized in that, The second connection component (2) includes a guide rail, a third slider and a fourth slider. The third slider and the fourth slider are both arranged on the guide rail, and the second connection component (2) further includes a second driving mechanism for driving the third slider and the fourth slider to approach or separate from each other.

6. The recess coating refurbishment device according to claim 2, characterized in that, The first connection component (1) includes a connecting rod (11) and a clamping member (12) arranged on the connecting rod (11). The end of the circuit board (100) is clamped in the clamping member (12), and the first driving mechanism (4) is connected to the connecting rod (11).

7. The recess coating refurbishment device according to claim 6, characterized in that, The two elastic pressure rollers (3) are arranged horizontally at intervals, the circuit board (100) is arranged vertically, and the driving mechanism is used to drive the connecting rod (11) to move up and down.

8. The recess coating refurbishment device according to claim 1, characterized in that, The elastic pressure roller (3) includes a rigid core shaft (31) and an elastic rubber sleeve (32) fixedly sleeved outside the rigid core shaft (31).

9. The groove coating refurbishing device according to claim 8, characterized in that, The elastic rubber sleeve (32) is made of polyethylene.

10. The groove coating refurbishment device according to claim 1, characterized in that, The driving mechanism is an electric telescopic rod.

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