Spraying disc swinging mechanism and PCB (Printed Circuit Board) cleaning equipment

Abstract

The utility model discloses a spraying disc swinging mechanism and PCB (printed circuit board) cleaning equipment. The spraying disc swinging mechanism comprises at least one eccentric wheel driven by a driving device; the guide rod is arranged on the eccentric wheel, and the guide rod and the eccentric wheel synchronously and eccentrically rotate; the support is arranged on the guide rod and can horizontally rotate relative to the guide rod, the support is used for being connected with a spraying disc body, and the support is connected with the guide rod through a bearing; the PCB cleaning device can solve the problems that in traditional PCB cleaning equipment, the spraying pipe and the position of flushing fluid sprayed out of the spraying pipe are relatively fixed, the flushing efficiency is low, and the flushing range is small.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board cleaning, in particular to a spray disc swing mechanism and a PCB board cleaning device. Background Art

[0002] PCB board etching is an important process in the PCB manufacturing process, which involves removing the unwanted copper layer from the circuit board to form the required circuit pattern. Before etching, the PCB board needs to be cleaned to remove impurities such as oil stains, oxides, and dust that may exist, so as to ensure the clarity of the etching pattern.

[0003] When cleaning the PCB board, a flushing liquid is required for flushing. The position of the traditional spray pipe for transporting the flushing liquid is relatively fixed, and the flushing liquid sprayed by the spray pipe can only spray and rinse the predetermined position of the PCB board, resulting in the defects of low flushing efficiency and small flushing range. Summary of the Utility Model

[0004] The utility model aims to solve the above technical problems, that is, in the traditional PCB board cleaning equipment, the positions of the spray pipe and the flushing liquid sprayed by the spray pipe are relatively fixed, resulting in the defects of low flushing efficiency and small flushing range.

[0005] In a first aspect, the utility model provides a spray disc swing mechanism, comprising:

[0006] At least one eccentric wheel;

[0007] A guide rod configured on the eccentric wheel, and the guide rod is configured to rotate eccentrically synchronously with the eccentric wheel;

[0008] A support configured on the guide rod and capable of rotating horizontally relative to the guide rod, and the support is used to connect the spray disc body.

[0009] In a preferred technical solution of the above spray disc swing mechanism, the eccentric wheel is driven by a driving device.

[0010] In a preferred technical solution of the above spray disc swing mechanism, the support is connected to the guide rod through a bearing.

[0011] In a preferred technical solution of the above spray disc swing mechanism, the support is connected to the spray disc body through a bolt.

[0012] In a preferred technical solution of the above spray disc swing mechanism, there are two sets of eccentric wheels, and the two sets of eccentric wheels are arranged in sequence in the vertical direction, and the guide rod is configured on the two sets of eccentric wheels.

[0013] In a second aspect, the utility model further provides a PCB board cleaning device, which includes the above spray disc swing mechanism, and further includes:

[0014] The outer housing, a cleaning space is formed inside the outer housing, and the spray disc body is slidably disposed in the cleaning space;

[0015] Wherein, two sets of supports are arranged on the guide rod, each set of supports is connected to a set of the spray disc body, and the two spray disc bodies are driven by the eccentrically rotating guide rod to perform synchronous reciprocating motion in the cleaning space of the outer housing.

[0016] In the preferred technical solution of the above PCB board cleaning device, the spray disc body at least includes a frame, a plurality of first spray pipes arranged along the length direction of the frame, and second spray pipes arranged along the width direction of the frame. Among them, the plurality of first spray pipes are all communicated with the second spray pipe, and nozzles are formed on the first spray pipes.

[0017] In the preferred technical solution of the above PCB board cleaning device, a sliding groove is formed on the side of the frame, a pulley is rotatably installed in the sliding groove, and the pulley is in rolling contact with the inner wall of the outer housing.

[0018] In the preferred technical solution of the above PCB board cleaning device, a spray cleaning circulation structure is arranged on the outer housing, and the spray cleaning circulation structure is used to pump the liquid rinsed on the PCB board in the cleaning space back into the spray disc body for recycling.

[0019] In the preferred technical solution of the above PCB board cleaning device, the spray cleaning circulation structure at least includes a circulation pump, a first pipeline connected to the outlet of the circulation pump, and a second pipeline connected to the inlet of the circulation pump. Among them, the first pipeline is communicated with the inside of the spray disc body, and the second pipeline accesses the liquid to be circulated in the cleaning space.

[0020] The beneficial effect of the present utility model is to drive the eccentric wheel to rotate, so that the guide rod and the support perform eccentric motion, and then drive the spray disc body to perform reciprocating motion, so as to expand the range of the liquid sprayed by the spray disc body, improve the use effect of the present application, and have practicability. Description of the Drawings

[0021] Figure 1 It is the front view of the spray disc swing mechanism;

[0022] Figure 2 It is the schematic diagram of the spray disc body;

[0023] Figure 3 It is the schematic diagram of the PCB board cleaning device;

[0024] In the figure: eccentric wheel 1, guide rod 2, support 3, spray disc body 4, frame 41, first spray pipe 42, second spray pipe 43, nozzle 44, sliding groove 45, driving device 5, outer housing 6, circulation pump 71, first pipeline 72, second pipeline 73. Detailed implementation manners

[0025] The preferred implementation manners of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0026] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the accompanying drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "arranged", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] As Figures 1 to 3 shown, the spray disc swing mechanism of the present utility model includes: at least one eccentric wheel 1; a guide rod 2 configured on the eccentric wheel 1, and the guide rod 2 is configured to eccentrically rotate synchronously with the eccentric wheel 1; a support 3 configured on the guide rod 2 and capable of horizontally rotating relative to the guide rod 2, and the support 3 is used to connect the spray disc body 4.

[0029] See Figure 1 , the guide rod 2 is not coaxial with the central axis of the eccentric wheel 1, so that the eccentric wheel 1 can drive the guide rod 2 to eccentrically rotate, and then the support 3 horizontally rotatably connected to the guide rod 2 can eccentrically rotate with the guide rod 2; when the spray disc body 4 connected to the support 3 is restricted to move only in the front-rear direction, the support 3 will eccentrically rotate with the guide rod 2, and the spray disc body 4 will not eccentrically rotate but only move back and forth in the front-rear direction.

[0030] In the first connection manner between the support 3 and the spray disc body 4, the spray disc body 4 and the support 3 can be connected by a ball valve, and then the spray disc body 4 can move back and forth in the front-rear direction and the support 3 can eccentrically move. In the second connection manner between the support 3 and the spray disc body 4, the spray disc body 4 and the support 3 can be connected by a bolt; that is, a bolt is installed on the support 3, and the other end of the bolt is rotatably connected to the spray disc body 4; in this way, the support 3 can eccentrically rotate with the guide rod 2 while the spray disc body 4 can be restricted to move back and forth only in the front-rear direction.

[0031] In this application, the eccentric wheel 1 is driven to rotate, so that the guide rod 2 and the support 3 perform eccentric motion, and then drive the spray disc body 4 to perform reciprocating motion, so as to expand the range of the liquid sprayed by the spray disc body 4 and improve the use effect of this application.

[0032] In one or more embodiments, the eccentric wheel 1 is driven by a driving device 5. The driving device 5 can be a servo motor or other possible driving sources.

[0033] In one or more embodiments, the support 3 and the guide rod 2 are connected by a bearing. Refer to Figure 1 , the inner side of the bearing is connected to the guide rod 2, and the outer side of the bearing is connected to the support 3. By this way, the friction between the support 3 and the guide rod 2 can be reduced, the smoothness of the horizontal rotation of the support 3 and the spray disc body 4 relative to the guide rod 2 can be improved, and at the same time, the abnormal noise generated when the support 3 rotates on the guide rod 2 can be reduced.

[0034] In one or more embodiments, there are two sets of eccentric wheels 1, and the two sets of eccentric wheels 1 are arranged in sequence in the vertical direction, and the guide rod 2 is arranged on the two sets of eccentric wheels 1. By arranging the eccentric wheels 1 in two sets, the stability of the rotation of the guide rod 2 can be effectively improved, the phenomenon of vibration when the guide rod 2 performs eccentric motion can be reduced, and the stability of the motion of the spray disc body 4 can be ensured.

[0035] In addition, the present utility model also provides a PCB board cleaning device. The PCB board cleaning device has the spray disc swing mechanism in any of the above embodiments, and further includes: a housing 6, a cleaning space is formed inside the housing 6, and the spray disc body 4 is slidably arranged in the cleaning space; wherein, there are two sets of supports 3 arranged on the guide rod 2, and each set of supports 3 is connected to a set of spray disc bodies 4, and the two sets of spray disc bodies 4 are driven by the eccentrically rotating guide rod 2 to perform synchronous reciprocating motion in the cleaning space of the housing 6; the spray disc body 4 at least includes a frame 41, a plurality of first spray pipes 42 arranged along the length direction of the frame 41, and second spray pipes 43 arranged along the width direction of the frame 41. Among them, the plurality of first spray pipes 42 are all communicated with the second spray pipes 43, and nozzles 44 are formed on the first spray pipes 42; a chute 45 is formed on the side of the frame 41, and a pulley is rotatably installed in the chute 45, and the pulley is in rolling contact with the inner wall of the housing 6.

[0036] Refer to Figure 3 , there are two sets of supports 3 arranged on the guide rod 2 in the vertical direction, and each set of supports 3 is connected to a set of spray disc bodies 4. A space for flushing the PCB board is formed between the two sets of spray disc bodies 4. That is, the nozzles 44 of the upper spray disc body 4 are arranged facing downwards, and the nozzles 44 of the lower spray disc body 4 are arranged facing upwards, so as to facilitate the simultaneous flushing of both sides of the PCB board and further improve the flushing efficiency of the PCB board.

[0037] See Figure 2 、 Figure 3 The nozzle body is in rolling contact with the inner wall of the outer casing 6 through pulleys, and the nozzle body is restricted by the pulleys and the outer casing 6 to reciprocate only in the front-back direction.

[0038] See Figures 1 to 3 When cleaning the PCB board, first, the driving device 5 is used to control the eccentric wheel 1 to perform eccentric motion. The eccentric wheel 1 drives the guide rod 2 to perform eccentric motion. Two supports 3 arranged on the guide rod 2 and capable of horizontally rotating relative to the guide rod 2 synchronously drive the upper nozzle body 4 and the lower nozzle body 4 to reciprocate back and forth in the cleaning space of the outer casing 6, thereby increasing the range of the nozzle body 4 for spraying and rinsing the PCB board, improving the applicable range of the present application, and having practicability.

[0039] In one or more embodiments, a spray cleaning circulation structure is configured on the outer casing 6. The spray cleaning circulation structure is used to pump the liquid rinsed from the PCB board in the cleaning space back into the nozzle body 4 for recycling. The spray cleaning circulation structure at least includes a circulation pump 71, a first pipeline 72 connected to the outlet of the circulation pump 71, and a second pipeline 73 connected to the inlet of the circulation pump 71. Among them, the first pipeline 72 communicates with the inside of the nozzle body 4, and the second pipeline 73 accesses the liquid to be recycled in the cleaning space.

[0040] See Figure 3 When cleaning the PCB board, the circulating liquid flowing into the cleaning space of the outer casing 6 will be connected to the second pipeline 73, and the rinsed circulating liquid will be pumped back into the two groups of nozzle bodies 4 through the second pipeline 73 and the first pipeline 72 by the circulation pump 71, so as to achieve the purpose of liquid recycling.

[0041] In other possible embodiments, a filtering device is configured on the second pipeline 73. The filtering device can filter the circulating liquid transported by the second pipeline 73 to the nozzle body 4, thereby reducing the pollution during the rinsing of the PCB board and improving the use effect of the present application.

[0042] The above embodiments are only for explaining the technical concept and characteristics of the present invention. The purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A spray plate swing mechanism, characterized in that: include: at least one eccentric wheel; A guide rod, disposed on the eccentric wheel, the guide rod being configured to rotate eccentrically synchronously with the eccentric wheel; The support is arranged on the guide rod and can rotate horizontally relative to the guide rod. The support is used to connect the spray disc body.

2. The spray plate swing mechanism according to claim 1, characterized in that: The eccentric wheel is driven by a driving device.

3. The spray plate swing mechanism according to claim 1, characterized in that: The support and the guide rod are connected via a bearing.

4. The spray plate swing mechanism according to claim 1 or 3, characterized in that: The support is connected to the spray disc body through a pin.

5. The spray plate swing mechanism according to claim 1, characterized in that: The eccentric wheels have two groups, the two groups of eccentric wheels are arranged in sequence in the vertical direction, and the guide rods are arranged on the two groups of eccentric wheels.

6. A PCB board cleaning device, characterized in that: The spray plate swing mechanism comprises the spray plate swing mechanism according to any one of claims 1 to 5, further comprising: An outer shell, wherein a cleaning space is formed in the outer shell, and the spray disc body is slidably arranged in the cleaning space; There are two groups of supports on the guide rod, each group of supports is connected to a group of spray disc bodies, and the two groups of spray disc bodies are driven by the eccentrically rotating guide rod to perform synchronous reciprocating motion in the cleaning space of the outer shell.

7. The PCB cleaning device according to claim 6, characterized in that: The spray plate body at least includes a frame, a plurality of first spray pipes arranged along the length direction of the frame, and a second spray pipe arranged along the width direction of the frame, wherein the plurality of first spray pipes are connected to the second spray pipe, and a spray head is formed on the first spray pipe.

8. The PCB cleaning device according to claim 7, characterized in that: A slide groove is formed on the side of the frame, a pulley is rotatably installed in the slide groove, and the pulley is in rolling contact with the inner wall of the shell.

9. The PCB cleaning device according to claim 6, characterized in that: The outer shell is provided with a spray-washing circulation structure, and the spray-washing circulation structure is used to pump the liquid used for flushing the PCB board in the cleaning space back into the spray plate body for recycling.

10. The PCB cleaning device according to claim 9, characterized in that: The spray-washing circulation structure includes at least a circulation pump and a first pipeline connected to the circulation pump outlet and a second pipeline connected to the circulation pump inlet, wherein the first pipeline is connected to the spray plate body, and the second pipeline is connected to the liquid to be circulated in the cleaning space.

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