ACF (anisotropic conductive film) cleaning equipment for PCB (printed circuit board) golden finger

Abstract

The invention provides ACF cleaning equipment for a PCB golden finger. The ACF cleaning equipment comprises a base, the upper surface of the base is connected with a machine shell, the interior of the machine shell is connected with a motor, an output shaft of the motor is connected with a rotating wheel, the outer surface of the rotating wheel is connected with bristles through a hook-and-loop fastener, and the rotating wheel is connected with the upper surface of the base. According to the invention, a green hand can quickly start to clean, and the learning cost is reduced.

Description

Technical Field

[0001] The invention mainly relates to the technical field of PCB board processing, and in particular to an ACF cleaning device for gold fingers of a PCB board. Background Art

[0002] In the display notebook computer process, the technology of connecting flexible circuit boards and PCB boards is widely used. When defects occur in the process, the PCB boards of the defective products need to be disassembled and recycled to reduce material loss. After the PCB and the flexible circuit board are disassembled, a large amount of ACF (anisotropic conductive film) glue remains on the gold fingers at the connection. The remaining ACF (anisotropic conductive film) glue needs to be cleaned to ensure the yield of the secondary PCB investment.

[0003] Currently, people often fix the bristles to the cleaning device by bolts, or by weaving the bristles on the cleaning equipment. In the above fixing method, the bristles are difficult to remove, and the fixation of the bristles to the cleaning equipment is not stable enough, which affects the replacement and cleaning efficiency of the bristles, and further affects the use effect of the cleaning equipment. Summary of the invention

[0004] The present invention mainly provides an ACF cleaning device for gold fingers of a PCB board to solve the technical problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] An ACF cleaning device for PCB gold fingers comprises a base, wherein the upper surface of the base is connected to a housing, the interior of the housing is connected to a motor, a rotating wheel is connected to the output shaft of the motor, the outer surface of the rotating wheel is connected to bristles via Velcro, and the rotating wheel is connected to the upper surface of the base.

[0007] Furthermore, the housing includes a motor housing connected to the upper surface of the base, the inner wall of the motor housing is connected to a supporting protrusion, one side surface of the supporting protrusion is connected to one end of the motor, and the bottom end of the supporting protrusion is connected to the upper surface of the base.

[0008] Furthermore, support assemblies are connected to both sides of the rotating wheel, and the rotating wheel is connected to the upper surface of the base through the support assemblies. The support assembly includes a bracket connected to the upper surface of the base, and the upper surface of the bracket is connected to a lower bearing fixing frame, and the top of the lower bearing fixing frame is connected to an upper bearing fixing frame. A bearing is connected between the lower bearing fixing frame and the upper bearing fixing frame, and the inside of the bearing is connected to a rotating shaft through a key, and the rotating shaft is connected to the rotating wheel, and the rotating shaft is connected to the motor through a coupling.

[0009] Furthermore, the outer cover of the rotating wheel is provided with a rotating wheel shell, and the rotating wheel shell is connected to the upper surface of the base.

[0010] Furthermore, a bracket shell is connected to both sides of the rotor shell, the bracket shell is sleeved on the outside of the bracket, and the bottom end of the bracket shell is connected to the upper surface of the base.

[0011] Furthermore, a blocking cover is provided between the rotating wheel and the rotating wheel shell, and shaft sleeves are connected to both sides of the blocking cover, and the shaft sleeves are sleeved on the outer surface of the rotating shaft.

[0012] Furthermore, an opening is provided on the cover body of the blocking cover, and one end of the opening of the blocking cover is connected to a guide groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This device uses a nylon brush, which is softer than a wooden stick and reduces the risk of scratching the gold fingers of the PCB board.

[0015] 2. Start the motor to drive the wheel to rotate. Since there are bristles on the wheel, the PCB board that has been smeared with alcohol on the gold finger can be cleaned by lightly pressing on the exposed bristles, so that novices can quickly get started and reduce learning costs.

[0016] 3. This equipment has good cleaning effect. By rotating the brush on the rotating wheel, the ACF glue can be repeatedly cleaned, which is convenient and efficient.

[0017] 4. This equipment has high efficiency. A novice uses this device to clean ACF glue, with an average efficiency of 180pcs / H, which significantly improves efficiency.

[0018] 5. The bristles and Velcro in this equipment are consumables, which are easy to replace and simple to install. Employees do not need to disassemble or assemble other parts when replacing them.

[0019] 6. This equipment has a waste recycling design, and the cover can prevent waste water from splashing. And under the joint action of the shell and the cover, the parts on the wheel are isolated from other parts, which increases the service life of the device.

[0020] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 An exploded view of the present invention;

[0023] Figure 3 is a schematic diagram of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the blocking cover of the present invention in a closed state.

[0025] In the figure: 1. casing; 2. base; 3. motor; 4. coupling; 5. upper bearing fixing bracket; 6. bearing; 7. lower bearing fixing bracket; 8. shaft; 9. key; 10. rotating wheel; 11. Velcro; 12. bristles; 13. bushing; 14. cover; 15. bracket; 16. rotating wheel casing; 17. bracket casing; 18. guide groove; 19. motor casing; 20. supporting convex plate. DETAILED DESCRIPTION

[0026] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] For examples, please refer to the attached Figure 1-4 , an ACF cleaning device for PCB gold fingers, comprising a base 2, the upper surface of the base 2 is connected to a housing 1, the interior of the housing 1 is connected to a motor 3, the output shaft of the motor 3 is connected to a rotating wheel 10, the outer surface of the rotating wheel 10 is connected to bristles 12 through a Velcro 11, and the rotating wheel 10 is connected to the upper surface of the base 2;

[0030] It should be noted that, in this embodiment, the device changes manual ACF cleaning to semi-automatic, and the width of the brush 12 is 20 mm, which is compatible with ACF cleaning work of PCB boards of almost all sizes;

[0031] The design of the Velcro 11 facilitates the replacement of consumables. The bristles 12 are connected through the Velcro 11, and the bristles 12 can be replaced without disassembling the machine;

[0032] The Velcro 11 is fixed to the side of the rotating wheel 10 by screws. If it is fixed to a moving cylindrical surface, the PCB board may be damaged during operation.

[0033] For details, please refer to the attached Figure 1 and 2 The housing 1 includes a motor housing 19 connected to the upper surface of the base 2, and the inner wall of the motor housing 19 is connected to a supporting convex plate 20, one side surface of the supporting convex plate 20 is connected to one end of the motor 3, and the bottom end of the supporting convex plate 20 is connected to the upper surface of the base 2;

[0034] Support components are connected to both sides of the rotating wheel 10, and the rotating wheel 10 is connected to the upper surface of the base 2 through the support components. The support components include a bracket 15 connected to the upper surface of the base 2, and the upper surface of the bracket 15 is connected to a lower bearing fixing frame 7, and the top of the lower bearing fixing frame 7 is connected to an upper bearing fixing frame 5, and a bearing 6 is connected between the lower bearing fixing frame 7 and the upper bearing fixing frame 5, and the inside of the bearing 6 is connected to a rotating shaft 8 through a key 9, and the rotating shaft 8 is connected to the rotating wheel 10, and the rotating shaft 8 is connected to the motor 3 through a coupling 4;

[0035] It should be noted that, in this embodiment, the motor housing 19 provides support for the support convex plate 20 and provides protection for the motor 3, and the support convex plate 20 provides support for the motor 3;

[0036] Furthermore, the bracket 15 provides support for the lower bearing fixing frame 7 , and the bearing 6 is provided to provide support for the rotation of the rotating shaft 8 . The rotating shaft 8 is provided so that the rotating wheel 10 can rotate between the two brackets 15 .

[0037] For details, please refer to the attached Figure 1 and 2 The outer cover of the rotating wheel 10 is provided with a rotating wheel shell 16, and the rotating wheel shell 16 is connected to the upper surface of the base 2;

[0038] The two sides of the wheel shell 16 are connected with a bracket shell 17, the bracket shell 17 is sleeved on the outside of the bracket 15, and the bottom end of the bracket shell 17 is connected to the upper surface of the base 2;

[0039] It should be noted that, in this embodiment, the rotor 10 is protected by the rotor housing 16;

[0040] Furthermore, the bracket 15 is protected by the bracket shell 17 .

[0041] For details, please refer to the attached Figure 3 and 4A stop cover 14 is provided between the impeller 10 and the impeller housing 16, and shaft sleeves 13 are connected to both sides of the stop cover 14, and the shaft sleeves 13 are sleeved on the outer surface of the rotating shaft 8;

[0042] The cover body of the blocking cover 14 is provided with an opening, and one end of the opening of the blocking cover 14 is connected to a guide groove 18;

[0043] It should be noted that, in this embodiment, the waste water is collected by the guide groove 18, and the rotor 10 and the bristles 12 are protected by the baffle 14;

[0044] The baffle 14 rotates around the rotating shaft 8 through the shaft sleeve 13. In the working state, the bristles 12 are inserted into the opening edge, and the waste water on the bristles 12 is scraped off as the bristles 12 move and discharged along the guide groove 18. The remaining waste water will be deposited in the baffle 14 and will be discharged from the guide groove 18 on the base after closing.

[0045] The baffle 14 extends inward along the edge to the bristles 12, and the waste materials remaining on the bristles 12 can be scraped off. After the bristles 12 are cleaned, the bristles 12 that have been cleaned by the ACF glue can be scrapped off immediately due to the rotation of the bristles 12, thus avoiding the problem that the bristles 12 are gradually covered with waste materials during use, resulting in the scrapping of the bristles 12. This also improves the cleaning efficiency;

[0046] Since the ACF glue dissolved by alcohol is in liquid form, the blocking cover 14 can effectively prevent waste from splashing and entering the eyes or polluting the surrounding environment, thereby improving the safety of the device.

[0047] The specific operation mode of the present invention is as follows:

[0048] When using the ACF cleaning device for the gold finger of the PCB board, first open the cover 14, then start the motor 3 to drive the rotating wheel 10 to rotate. Since the rotating wheel 10 is connected with the bristles 12, the PCB board coated with alcohol at the gold finger can be cleaned by lightly pressing the exposed bristles 12. When replacing the bristles 12, tear off the bristles 12 from the Velcro 11 and replace them with new ones.

[0049] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An ACF cleaning device for a PCB gold finger, comprising a base (2), characterized in that: The upper surface of the base (2) is connected to a housing (1), the interior of the housing (1) is connected to a motor (3), the output shaft of the motor (3) is connected to a rotating wheel (10), the outer surface of the rotating wheel (10) is connected to bristles (12) via a Velcro (11), and the rotating wheel (10) is connected to the upper surface of the base (2).

2. The ACF cleaning device for PCB board gold fingers according to claim 1, characterized in that: The housing (1) comprises a motor housing (19) connected to the upper surface of the base (2); the inner wall of the motor housing (19) is connected to a supporting convex plate (20); a side surface of the supporting convex plate (20) is connected to one end of the motor (3); and the bottom end of the supporting convex plate (20) is connected to the upper surface of the base (2).

3. The ACF cleaning device for PCB board gold fingers according to claim 1, characterized in that: Support assemblies are connected to both sides of the rotating wheel (10), and the rotating wheel (10) is connected to the upper surface of the base (2) through the support assemblies. The support assembly comprises a bracket (15) connected to the upper surface of the base (2), and the upper surface of the bracket (15) is connected to a lower bearing fixing frame (7), and the top end of the lower bearing fixing frame (7) is connected to an upper bearing fixing frame (5), and a bearing (6) is connected between the lower bearing fixing frame (7) and the upper bearing fixing frame (5), and the inside of the bearing (6) is connected to a rotating shaft (8) through a key (9), and the rotating shaft (8) is connected to the rotating wheel (10).

4. The ACF cleaning device for PCB gold fingers according to claim 1, characterized in that: The outer portion of the rotating wheel (10) is provided with a rotating wheel shell (16), and the rotating wheel shell (16) is connected to the upper surface of the base (2).

5. The ACF cleaning device for PCB gold fingers according to claim 4 is characterized in that: The two sides of the wheel shell (16) are connected to a bracket shell (17), the bracket shell (17) is sleeved on the outside of the bracket (15), and the bottom end of the bracket shell (17) is connected to the upper surface of the base (2).

6. The ACF cleaning device for PCB gold fingers according to claim 1, characterized in that: A blocking cover (14) is provided between the rotating wheel (10) and the rotating wheel shell (16), and shaft sleeves (13) are connected to both sides of the blocking cover (14), and the shaft sleeves (13) are sleeved on the outer surface of the rotating shaft (8).

7. The ACF cleaning device for PCB gold fingers according to claim 6, characterized in that: An opening is provided on the cover body of the blocking cover (14), and one end of the opening of the blocking cover (14) is connected to a guide groove (18).

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