Copper-clad circuit board etching equipment

Abstract

The utility model relates to the technical field of circuit board etching equipment, in particular to copper-clad circuit board etching equipment, which comprises a working table, an inner annular strip, an outer annular strip and a driving assembly, a telescopic pressing piece is mounted at the upper end of the inner annular strip, a deflection pressing piece is mounted at the upper end of the outer annular strip, and the driving assembly is mounted on the working table. The driving assembly comprises a first gear driving part, a second gear driving part and a main driving part, and the main driving part is telescopic so that the main driving part can be connected to the first gear driving part and / or the second gear driving part in a meshed mode. According to the utility model, through the arrangement of the inner annular strip and the outer annular strip which can rotate around the working area, the positions of the telescopic pressing pieces on the inner annular strip and the positions of the deflection pressing pieces on the outer annular strip can be adjusted according to the requirements of the circuit board, so that the adjustment can be conveniently carried out when the irregular or special-shaped circuit board is pressed; the abutting position can be adjusted by driving the inner annular strip and / or the outer annular strip to rotate, and flexibility is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board etching equipment, in particular to a copper-clad circuit board etching equipment. Background Art

[0002] Copper-clad circuit boards (CCLs) are a fundamental and crucial component of the electronics industry. They are made by hot-pressing a reinforcing material (such as fiberglass) impregnated with resin, coated on one or both sides with copper foil, and then heat-pressed. They are the fundamental material for PCBs and can be used to create single-layer, double-layer, or multi-layer PCBs. Etching equipment is a key component of CCL manufacturing, and the etching step is crucial in the process, removing the unwanted copper foil layer and leaving behind the designed circuit pattern.

[0003] When we actually etch a circuit board, we usually need to first fix the circuit board to be etched using the clamping structure or pressing structure on the etching equipment, and then spray the etching liquid to perform the etching operation. However, the existing clamping structure or pressing structure is mostly for clamping and fixing regular circuit boards. The clamping structure is mostly straight vertically or horizontally. For irregular or special-shaped circuit boards, the performance in actual application is not ideal and still needs further optimization and improvement. To this end, we propose a copper-clad circuit board etching equipment. Utility Model Content

[0004] To solve the above technical problems, the present application provides a copper-clad circuit board etching device, comprising a workbench having a working area on its upper end surface, a mounting frame provided above the workbench, an etching assembly facing the working area being mounted on the mounting frame, and further comprising:

[0005] An inner annular bar and an outer annular bar, both of which are rotatably disposed on the periphery of the working area, annular racks are mounted on the inner wall of the inner annular bar and the outer wall of the outer annular bar, and the outer annular bar is located on the periphery of the inner annular bar, a telescopic pressing member is mounted on the upper end of the inner annular bar, and a deflecting pressing member is mounted on the upper end of the outer annular bar, the telescopic pressing member and the deflecting pressing member cooperate to press against the circuit board and achieve deflection;

[0006] A drive assembly includes a first gear drive part, a second gear drive part and a main drive part. The first gear drive part is used to drive the inner ring bar to rotate, the second gear drive part is used to drive the outer ring bar to rotate, and the main drive part is retractable to achieve the main drive part being engaged and connected to the first gear drive part and / or the second gear drive part.

[0007] In some embodiments, the first gear drive portion comprises:

[0008] a first gear meshing with the inner annular bar;

[0009] a fifth gear disposed inside the workbench, wherein a first rod is connected between the fifth gear and the first gear, and the first rod passes through the workbench surface via a bearing;

[0010] The third gear is installed outside the first rod, and the third gear is located above the fifth gear.

[0011] In some embodiments, the second gear drive portion comprises:

[0012] a second gear meshing with the outer annular bar;

[0013] The fourth gear is arranged inside the workbench. The thickness of the fourth gear is not less than twice that of the third gear. A second rod is connected between the fourth gear and the second gear. The second rod passes through the workbench surface through a bearing.

[0014] In some embodiments, the main drive portion includes:

[0015] A telescopic member installed at the bottom of the workbench;

[0016] a second motor mounted on the top end of the telescopic member;

[0017] The driving gear is mounted on the top of the second motor through a rotating shaft.

[0018] In some embodiments, the deflecting and pressing member includes:

[0019] a first support plate fixed to the upper end surface of the outer annular strip;

[0020] A first motor is mounted on a side of the first support plate facing away from the working area, and a connecting rod passing through the first support plate is mounted on an output end of the first motor;

[0021] The first pressing block is installed at an end of the connecting rod away from the first motor.

[0022] In some embodiments, the telescopic pressing member includes:

[0023] a second supporting plate fixed to the upper end surface of the inner annular strip;

[0024] An electric telescopic rod, which is installed through the second support plate;

[0025] The second pressing block is installed on one end of the electric telescopic rod facing the working area through a bearing.

[0026] In some embodiments, the etching assembly includes an etching liquid delivery pipe and a shower head. The etching liquid delivery pipe is provided on the mounting frame, and the shower head is installed at the liquid outlet end of the etching liquid delivery pipe.

[0027] In some embodiments, the bottom ends of the inner and outer annular bars are connected to annular slide bars, an annular groove is provided on the upper end surface of the workbench, and the annular slide bar is slidably fitted in the annular groove.

[0028] In some embodiments, a leakage hole is opened in the working area of the upper end surface of the workbench, a filter is provided in the leakage hole, and a collection box is provided inside the workbench and below the leakage hole.

[0029] The utility model has at least the following beneficial effects:

[0030] 1. By setting an inner ring bar and an outer ring bar that can rotate around the working area, the position of the telescopic pressing member on the inner ring bar and the deflection pressing member on the outer ring bar can be adjusted according to the needs of the circuit board, which is convenient for adjustment when tightening irregular or special-shaped circuit boards.

[0031] 2. By setting up a drive assembly consisting of a first gear drive part, a second gear drive part and a main drive part, the main drive part can be selected to be engaged with the first gear drive part and / or the second gear drive part as needed to drive the rotation of the inner ring bar and / or the outer ring bar to adjust the tightening position, which is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 For this utility model Figure 1 Another structural diagram;

[0034] Figure 3 For this utility model Figure 2 Another structural diagram;

[0035] Figure 4 This is a schematic diagram of the three-dimensional structure of the workbench of the utility model;

[0036] Figure 5 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0037] Figure 6 For this utility model Figure 5 Another structural diagram;

[0038] Figure 7 This is a structural diagram of the telescopic pressing member of the utility model;

[0039] Figure 8 This is a schematic diagram of the structure of the deflection and pressure member of the utility model.

[0040] In the figure: 1, workbench; 2, mounting frame; 3, etching liquid delivery pipe; 4, inner ring bar; 5, outer ring bar; 6, ring rack;

[0041] 7. Deflection pressing member; 71. First support plate; 72. First motor; 73. Connecting rod; 74. First pressing block;

[0042] 8. Telescopic pressing member; 81. Second supporting plate; 82. Second pressing block; 83. Electric telescopic rod;

[0043] 9. Sprinkler head;

[0044] 10. Drive assembly; 101. First gear drive unit; 1011. First gear; 1012. Third gear; 1013. Fifth gear; 102. Second gear drive unit; 1021. Second gear; 1022. Fourth gear; 103. Main drive unit; 1031. Telescopic member; 1032. Second motor; 1033. Driving gear;

[0045] 11. Collection box; 12. Leak hole; 13. Annular groove; 14. Annular slide. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] Example 1:

[0048] See also Figure 1-3The utility model provides a technical solution: a copper clad circuit board etching device, comprising a workbench 1 with a working area on the upper end surface, a controller installed on the outer wall of the workbench 1, and a mounting frame 2 installed above the workbench 1, an etching component facing the working area is installed on the mounting frame 2, and the etching component comprises an etching liquid delivery pipe 3 and a spray head 9, a valve can be installed on the etching liquid delivery pipe 3 to control the etching liquid delivery amount, and the etching liquid delivery pipe 3 is arranged on the mounting frame 2, the spray head 9 is installed at the liquid outlet end of the etching liquid delivery pipe 3, and a plurality of spray holes are provided on the lower end surface of the spray head 9, and the other end of the etching liquid delivery pipe 3 is used to connect a spray pump (not shown), and the spray pump is used to extract the etching liquid in the etching liquid tank (not shown) Liquid, its spray etching liquid structure is the existing technology and will not be described in detail here. It also includes an inner annular bar 4 and an outer annular bar 5. The inner annular bar 4 and the outer annular bar 5 can be rotatably arranged on the periphery of the working area. Annular racks 6 are installed on the inner wall of the inner annular bar 4 and the outer wall of the outer annular bar 5, and the outer annular bar 5 is located on the periphery of the inner annular bar 4. A telescopic pressure piece 8 is installed at the upper end of the inner annular bar 4, and a deflection pressure piece 7 is installed at the upper end of the outer annular bar 5. The telescopic pressure piece 8 and the deflection pressure piece 7 cooperate to press the circuit board tightly and realize deflection. The deflection pressure piece 7 can ensure the stability of the circuit board. After the etching is completed, the circuit board can be deflected so that the etching liquid remaining in the depression on the upper end surface of the circuit board can be poured down.

[0049] Among them, in the specific implementation of the present utility model, refer to Figure 8 As shown, the deflection and pressing member 7 includes:

[0050] A first support plate 71 , which is fixed to the upper end surface of the outer annular strip 5 ;

[0051] A first motor 72 is mounted on a side of the first support plate 71 facing away from the working area, and a connecting rod 73 passing through the first support plate 71 is mounted on an output end of the first motor 72;

[0052] The first pressing block 74 is mounted on an end of the connecting rod 73 facing away from the first motor 72 .

[0053] See Figure 7 As shown, two telescopic pressing members 8 can be provided on the inner annular strip 4, preferably at 90 degrees between them, one cooperates with the deflecting pressing member 7 to achieve pressing, and the other can cooperate with the pressing to increase stability. When deflection is required, if the cooperating pressing telescopic pressing member 8 produces an obstruction, the cooperating pressing must be released first, and the telescopic pressing member 8 includes: a second support plate 81, which is fixed to the upper end surface of the inner annular strip 4;

[0054] An electric telescopic rod 83 is installed through the second support plate 81;

[0055] The second pressing block 82 is mounted on one end of the electric telescopic rod 83 toward the working area through a bearing.

[0056] The first pressing block 74 and the second pressing block 82 are both provided with grooves for embedding the ends of the circuit board.

[0057] Through the above, in actual use, one end of the circuit board to be etched can be first embedded in the groove of the first pressing block 74, and then the controller can be used to start the second pressing block 82 on the second support plate 81, so that the second pressing block 82 moves toward the circuit board to be etched, so that the other end of the circuit board to be etched is embedded in the groove on the second pressing block 82 and pressed tightly, and then the spray pump can be started, and the etching liquid can be extracted by the spray pump and sent to the etching liquid delivery pipe 3, and then sprayed on the circuit board to be etched through the spray head 9 for etching.

[0058] See Figure 2 and Figure 3 As shown, the copper clad circuit board etching equipment also includes a driving component 10, which includes a first gear driving part 101, a second gear driving part 102 and a main driving part 103. The first gear driving part 101 is used to drive the inner ring bar 4 to rotate, and the second gear driving part 102 is used to drive the outer ring bar 5 to rotate. The main driving part 103 is retractable to achieve the main driving part 103 being engaged and connected to the first gear driving part 101 and / or the second gear driving part 102.

[0059] The inner ring bar 4 and the outer ring bar 5 are rotatable, and the positions of the telescopic pressing member 8 on the inner ring bar 4 and the deflection pressing member 7 on the outer ring bar 5 can be adjusted according to the needs of the circuit board, which is convenient for adjusting irregular or special-shaped circuit boards.

[0060] As mentioned above, when the main driving part 103 is engaged and connected to the first gear driving part 101, the rotation of the inner annular bar 4 is adjusted independently to adjust the position of the telescopic pressure member 8 on the inner annular bar 4; when the main driving part 103 is engaged and connected to the second gear driving part 102, the rotation of the outer annular bar 5 is adjusted independently to adjust the position of the deflection pressure member 7 on the outer annular bar 5; when the main driving part 103 is engaged with the first gear driving part 101 and the second gear driving part 102 at the same time, the inner annular bar 4 and the outer annular bar 5 can rotate simultaneously.

[0061] Among them, in the specific implementation of the present utility model, refer to Figure 5 and Figure 6 As shown, the first gear driving part 101 includes:

[0062] A first gear 1011, which is engaged with the inner annular bar 4;

[0063] A fifth gear 1013 is disposed inside the workbench 1. A first rod is connected between the fifth gear 1013 and the first gear 1011. The first rod passes through the surface of the workbench 1 via a bearing.

[0064] The third gear 1012 is installed outside the first rod. The third gear 1012 is located above the fifth gear 1013 .

[0065] See Figure 5 and Figure 6 As shown, the second gear driving portion 102 includes:

[0066] The second gear 1021 is engaged with the outer ring bar 5;

[0067] The fourth gear 1022 is arranged inside the workbench 1. The thickness of the fourth gear 1022 is not less than twice that of the third gear 1012. A second rod is connected between the fourth gear 1022 and the second gear 1021. The second rod passes through the surface of the workbench 1 through a bearing.

[0068] See Figure 5 and Figure 6 As shown, the main driving part 103 includes:

[0069] The telescopic member 1031 is installed at the bottom of the workbench 1. The telescopic member 1031 can be a pneumatic or electric telescopic rod, or a hydraulic cylinder.

[0070] The second motor 1032 is mounted on the top of the telescopic member 1031 and is a forward and reverse motor;

[0071] The driving gear 1033 is mounted on the top of the second motor 1032 via a rotating shaft.

[0072] In summary, the specific implementation methods can be described as follows:

[0073] 1. When independently adjusting the rotation of the inner annular bar 4, the controller is first used to control the telescopic member 1031 to retract, so that the driving gear 1033 is engaged and connected to the fifth gear 1013, and then the second motor 1032 is started, and the output end of the second motor 1032 is used to drive the driving gear 1033 to rotate, and then the fifth gear 1013 is driven to rotate, so that the first gear 1011 is used to drive the inner annular bar 4 equipped with the annular rack 6 to rotate.

[0074] 2. When independently adjusting the rotation of the outer ring bar 5, the telescopic member 1031 is similarly used to drive the second motor 1032 to extend and retract, causing the driving gear 1033 to engage with the lower section of the fourth gear 1022. The output end of the second motor 1032 is then used to rotate the driving gear 1033, which in turn rotates the fourth gear 1022, thereby driving the outer ring bar 5 mounted with the annular rack 6 via the second gear 1021. Embodiments 1 and 2 are more preferably adapted to be used after one end has been determined, at which point the other end can be adjusted.

[0075] 3. When adjusting the positions of the inner and outer ring strips 4 and 5 simultaneously, the telescopic member 1031 is similarly used to drive the second motor 1032 to extend and retract, causing the driving gear 1033 to simultaneously engage with the third gear 1012 and the upper section of the fourth gear 1022. The output end of the second motor 1032 is then similarly used to drive the driving gear 1033 to rotate, thereby achieving simultaneous rotation of the inner and outer ring strips 4 and 5 to adjust their positions. This method allows the deflecting pressure member 7 and the telescopic pressure member 8 to move closer to or farther away from each other in the circumferential direction more quickly.

[0076] Example 2:

[0077] See Figure 4-Figure 6 As shown, the difference between this embodiment and the first embodiment is that an annular slide 14 is connected to the bottom ends of the inner annular strip 4 and the outer annular strip 5, and an annular groove 13 is provided on the upper end surface of the workbench 1. The annular slide 14 slides in the annular groove 13. The annular slide 14 is composed of a connected annular strip portion and an annular rod portion, and the diameter of the annular rod portion is larger than the width of the annular strip portion. The annular groove 13 is also arranged accordingly. When the inner annular strip 4 and the outer annular strip 5 rotate, the sliding of the annular slide 14 in the annular groove 13 can ensure stability, and the annular rod portion is at the lower end, so that the inner annular strip 4 and the outer annular strip 5 will not move up during the rotation process.

[0078] Example 3:

[0079] See Figure 3-Figure 4 As shown, the difference between this embodiment and the first embodiment is that a leakage hole 12 is opened in the working area of the upper end surface of the workbench 1, a filter is provided in the leakage hole 12, and a collection box 11 is provided inside the workbench 1 and below the leakage hole 12, and the collection box 11 and the main driving part 103 are separated by a partition to prevent the falling etching liquid from contaminating the main driving part 103.

[0080] As described above, the sprayed etching liquid can fall into the collection box 11 through the leak hole 12 for collection, and the impurities contained in the flowing etching liquid can be filtered by the filter, which is conducive to the separation of the collected etching liquid and impurities, reducing the workload of subsequent screening.

[0081] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0082] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper-clad circuit board etching device, comprising a workbench (1) with a working area on its upper end surface, a mounting frame (2) provided above the workbench (1), an etching component facing the working area being mounted on the mounting frame (2), characterized in that: Also included are: An inner ring bar (4) and an outer ring bar (5), both of which are rotatably arranged on the periphery of a working area, an annular rack (6) is installed on the inner wall of the inner ring bar (4) and the outer wall of the outer ring bar (5), and the outer ring bar (5) is located on the periphery of the inner ring bar (4), a telescopic pressing member (8) is installed on the upper end of the inner ring bar (4), and a deflection pressing member (7) is installed on the upper end of the outer ring bar (5), and the telescopic pressing member (8) and the deflection pressing member (7) cooperate to press against the circuit board and realize deflection; A drive assembly (10) includes a first gear drive portion (101), a second gear drive portion (102), and a main drive portion (103), wherein the first gear drive portion (101) is used to drive the inner ring bar (4) to rotate, and the second gear drive portion (102) is used to drive the outer ring bar (5) to rotate, and the main drive portion (103) is retractable to achieve meshing connection between the main drive portion (103) and the first gear drive portion (101) and / or the second gear drive portion (102).

2. The copper clad circuit board etching equipment according to claim 1, characterized in that: The first gear driving part (101) comprises: a first gear (1011) meshed with the inner annular bar (4); a fifth gear (1013) disposed inside the workbench (1), wherein a first rod is connected between the fifth gear (1013) and the first gear (1011), and the first rod passes through the surface of the workbench (1) via a bearing; The third gear (1012) is installed outside the first rod, and the third gear (1012) is located above the fifth gear (1013).

3. The copper clad circuit board etching equipment according to claim 2, characterized in that: The second gear driving portion (102) comprises: a second gear (1021) meshed with the outer annular bar (5); A fourth gear (1022) is arranged inside the workbench (1); the thickness of the fourth gear (1022) is not less than twice that of the third gear (1012); a second rod is connected between the fourth gear (1022) and the second gear (1021); the second rod passes through the surface of the workbench (1) through a bearing.

4. The copper clad circuit board etching equipment according to claim 3, characterized in that: The main driving part (103) comprises: A telescopic member (1031) is mounted on the inner bottom of the workbench (1); a second motor (1032) mounted on the top of the telescopic member (1031); The driving gear (1033) is mounted on the top of the second motor (1032) via a rotating shaft.

5. The copper clad circuit board etching equipment according to claim 1, characterized in that: The deflecting and pressing member (7) comprises: a first support plate (71) fixed to the upper end surface of the outer annular strip (5); A first motor (72) is mounted on a side of the first support plate (71) facing away from the working area, and a connecting rod (73) passing through the first support plate (71) is mounted on the output end of the first motor (72); The first pressing block (74) is mounted on an end of the connecting rod (73) facing away from the first motor (72).

6. The copper clad circuit board etching equipment according to claim 5, characterized in that: The telescopic pressing member (8) comprises: a second support plate (81) fixed to the upper end surface of the inner annular strip (4); An electric telescopic rod (83) is installed through the second support plate (81); A second pressing block (82) is mounted on one end of the electric telescopic rod (83) toward the working area through a bearing.

7. The copper clad circuit board etching equipment according to claim 1, characterized in that: The etching assembly comprises an etching liquid delivery pipe (3) and a shower head (9); the etching liquid delivery pipe (3) is provided through the mounting frame (2); and the shower head (9) is installed at the liquid outlet end of the etching liquid delivery pipe (3).

8. The copper clad circuit board etching equipment according to claim 1, characterized in that: The bottom ends of the inner annular strip (4) and the outer annular strip (5) are both connected to an annular slide bar (14), the upper end surface of the workbench (1) is provided with an annular groove (13), and the annular slide bar (14) is slidably fitted in the annular groove (13).

9. The copper clad circuit board etching equipment according to claim 1, characterized in that: A leakage hole (12) is provided in the working area of the upper end surface of the workbench (1), a filter is provided in the leakage hole (12), and a collection box (11) is provided inside the workbench (1) and below the leakage hole (12).

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