Printed circuit board dust removal device

Abstract

The utility model discloses a dust removal device for a printed circuit board, and relates to the technical field of dust removal of the printed circuit board. The dust removal device for the printed circuit board comprises a conveying mechanism and a base used for carrying the printed circuit board, the base comprises a bottom plate and bosses arranged on the two sides of the bottom plate, and the inner sides of the bosses are connected with clamping rods through elastic telescopic structures; a dust removal mechanism B is arranged on the conveying mechanism; the dust removal mechanism B comprises a U-shaped frame B installed on the conveying mechanism, the inner top face of the U-shaped frame B is connected with a telescopic rod B, a dust suction box is installed at the end of the telescopic rod B, and an air inlet hole is formed in the bottom side face of the dust suction box. According to the utility model, when the printed circuit board passes through the dust removal mechanism A, the cleaning brush is arranged to clean dust enriched on the surface of the printed circuit board, so that the dust is separated from the surface of the printed circuit board; when penetrating through the dust removal mechanism B, the air inlet hole directly faces the upper surface of the printed circuit board, so that dust on the upper surface of the printed circuit board is sucked away to complete dust removal operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal of printed circuit boards, in particular to a dust removal device for printed circuit boards. Background Art

[0002] During the production of circuit boards, especially small circuit boards (such as LED circuit boards with an area of ​​1-2 cm2), a large amount of metal particles and powder will be contaminated during the stamping process, and must be removed through a dust removal process. For example, CN209849519U discloses a PCB board dust removal device, including a sealed warehouse, a conveyor line, a feeder, a positive pressure fan, a negative pressure fan, an air supply pipe, an exhaust pipe, a dust collection box and a drive motor. The device uses a negative pressure dust extraction method for dust removal. When this method is used, the printed circuit board is prone to shaking under the action of negative pressure or being adsorbed onto the exhaust pipe. Utility Model Content

[0003] The utility model aims to provide a printed circuit board dust removal device, which solves the problem in the prior art that the printed circuit board is prone to shake under negative pressure or be adsorbed onto the exhaust pipe by providing a base for clamping and fixing the printed circuit board.

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model discloses a dust removal device for a printed circuit board, comprising a conveying mechanism, wherein a dust removal mechanism A and a dust removal mechanism B are sequentially arranged on the conveying mechanism along a conveying direction; the dust removal mechanism A comprises a U-shaped frame A installed on the conveying mechanism, the inner top surface of the U-shaped frame A is connected to a telescopic rod A, and a cleaning brush is arranged at the end of the telescopic rod A; the dust removal mechanism B comprises a U-shaped frame B installed on the conveying mechanism, the inner top surface of the U-shaped frame B is connected to the telescopic rod B, a dust extraction box is installed at the end of the telescopic rod B, and an air inlet is arranged on the bottom side surface of the dust extraction box.

[0006] Furthermore, the telescopic rod A and the telescopic rod B have the same structure, both comprising an inner sleeve rod and an outer sleeve which are sleeved together, and a locking bolt is provided at the end of the outer sleeve.

[0007] Furthermore, it also includes a base for carrying a printed circuit board, the base includes a bottom plate, bosses arranged on both sides of the bottom plate, the inner side of the boss is connected to a clamping rod through an elastic telescopic structure; the top of the clamping rod is provided with an inclined surface.

[0008] Furthermore, a groove is arranged on the inner side of the boss, a convex ring is arranged on the inner side wall of the groove, a movable column is connected to the convex ring via a spring, and an end of the movable column is connected to one side of the clamping rod.

[0009] Furthermore, an electromagnet is arranged on the bottom side of the groove, a convex column penetrating the convex ring is arranged at one end of the movable column, and a magnetic block is arranged at the end of the convex column; a power supply for powering the electromagnet is arranged in the bottom plate, and a switch for controlling the on and off of the power supply to the electromagnet is arranged on the boss.

[0010] Furthermore, the upper surface of the bottom plate is provided with crisscross support strips, and the support strips are made of rubber or plastic.

[0011] The utility model has the following beneficial effects:

[0012] In the utility model, when the printed circuit board passes through the dust removal mechanism A, the cleaning brush is used to clean the dust accumulated on the surface of the printed circuit board so that the dust is separated from the surface of the printed circuit board; when passing through the dust removal mechanism B, the air inlet is directly facing the upper surface of the printed circuit board, thereby completing the dust removal operation by sucking away the dust on the upper surface of the printed circuit board; at the same time, when in use, the clamping rod is used to clamp the two sides of the printed circuit board, thereby fixing the printed circuit board placed on the bottom plate, so as to avoid the printed circuit board being adsorbed at the air inlet by negative pressure at the air inlet when in use.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a top view of the printed circuit board dust removal device of the utility model;

[0016] Figure 2 for Figure 1 A cross-sectional view of

[0017] Figure 3 This is a schematic diagram of the structure of the printed circuit board dust removal device of the utility model;

[0018] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0019] Figure 5 This is a schematic diagram of the matching structure of the base and the printed circuit board of the utility model;

[0020] Figure 6 for Figure 5 A partial enlarged view of the middle part;

[0021] Figure 7 This is a schematic diagram of the installation structure of the elastic telescopic structure of the utility model;

[0022] Figure 8 This is a schematic diagram of the base structure of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] See also Figure 1-2 As shown in Figure 4, the utility model is a printed circuit board dust removal device, which includes a conveying mechanism 1 for conveying a printed circuit board 100, and a dust removal mechanism B3 for dust removal by dust suction is arranged on the conveying mechanism 1, and the dust removal mechanism B3 includes a U-shaped frame B31 installed on the conveying mechanism 1, and the inner top surface of the U-shaped frame B31 is connected to the telescopic rod B32, and the end of the telescopic rod B32 is installed with a dust box 33, and the bottom side surface of the dust box 33 is provided with an air inlet 34. When the printed circuit board 100 passes through the dust removal mechanism B3, the air inlet 34 is facing the upper surface of the printed circuit board 100, thereby completing the dust removal operation by removing the dust on the upper surface of the printed circuit board 100.

[0026] like Figure 3 In practice, some dust will accumulate on the surface of the printed circuit board 100 and cannot be drawn away by negative pressure through the air inlet 34. Therefore, a dust removal mechanism A4 is also provided in the present application, and the dust removal mechanism A4 and the dust removal mechanism B3 are arranged in sequence along the conveying direction of the conveying mechanism 1.

[0027] Specifically, Figure 4The dust removal mechanism A4 includes a U-shaped frame A41 installed on the conveying mechanism 1, the inner top surface of the U-shaped frame A41 is connected to the telescopic rod A42, and a cleaning brush 43 is set at the end of the telescopic rod A42. The cleaning brush 43 is used to clean the dust accumulated on the surface of the printed circuit board 100 so that the dust is separated from the surface of the printed circuit board 100.

[0028] On the basis of the above, the telescopic rod A42 and the telescopic rod B32 have the same structure, both including an inner sleeve rod and an outer sleeve that are socketed with each other, and a locking bolt is provided at the end of the outer sleeve. By utilizing the telescopic function of the telescopic rod A42 and the telescopic rod B32, it is convenient to adjust the distance between the cleaning brush 43 and the air inlet hole 34 and the printed circuit board 100, thereby adjusting the dust removal effect.

[0029] It is known that if Figure 5-6 In actual use, a base 2 for carrying the printed circuit board 100 is also required. The base 2 includes a bottom plate 20 and bosses 21 arranged on both sides of the bottom plate 20, and the inner side of the boss 21 is connected to a clamping rod 23 through an elastic telescopic structure. When in use, the clamping rod 23 is used to clamp the two sides of the printed circuit board 100, thereby fixing the printed circuit board 100 placed on the bottom plate 20 to avoid the printed circuit board 100 being adsorbed by negative pressure at the air inlet hole 34 during use.

[0030] Similarly, if Figure 7 A groove 211 is provided on the inner side of the boss 21, and a convex ring 213 is provided on the inner wall of the groove 211. The elastic telescopic structure includes a spring 214 provided on the convex ring 213, and a movable column 22 connected to the end of the spring 214 and sliding along the inner wall of the groove 211; the end of the movable column 22 is connected to one side of the clamping rod 23; thereby, the elastic action of the spring 214 is utilized to provide the clamping force, and the printed circuit board 100 is conveniently installed between the two clamping rods 23.

[0031] Based on the above, in order to facilitate the placement of the printed circuit board 100 between the two clamping rods 23 for clamping and the removal of the printed circuit board 100, the present invention arranges an electromagnet 212 on the bottom side of the groove 211, and one end of the movable column 22 is provided with a convex column 221 that penetrates the convex ring 213, and a magnetic block 222 is provided at the end of the convex column 221; a power supply for supplying power to the electromagnet 212 is provided in the base plate 20, and a switch for controlling the on and off of the power supply to the electromagnet 212 is provided on the boss 21; when the control electromagnet 212 is energized, the electromagnet 212 and the magnetic block 222 attract each other, and the two clamping rods 23 move in opposite directions, that is, the printed circuit board 100 can be taken out or put in at this time; after the control electromagnet 212 is powered off, the elastic action of the spring 214 provides a clamping force, and then the clamping rod 23 is used to clamp the printed circuit board 100.

[0032] The top of the clamping rod 23 is provided with an inclined surface 231; Figure 8 In order to facilitate the control of de-energizing the electromagnet 212 after the printed circuit board 100 is placed, and the printed circuit board 100 is clamped by the clamping rod 23, the present application provides criss-cross support strips 24 on the upper surface of the bottom plate 20, and the support strips 24 are made of rubber or plastic.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A printed circuit board dust removal device, characterized in that: The invention comprises a conveying mechanism (1) and a base (2) for carrying a printed circuit board (100), wherein the base (2) comprises a bottom plate (20) and bosses (21) arranged on both sides of the bottom plate (20), wherein the inner side of the bosses (21) is connected to a clamping rod (23) via an elastic telescopic structure; The conveying mechanism (1) is provided with a dust removal mechanism B (3); The dust removal mechanism B (3) comprises a U-shaped frame B (31) mounted on the conveying mechanism (1); the inner top surface of the U-shaped frame B (31) is connected to a telescopic rod B (32); a dust extraction box (33) is mounted at the end of the telescopic rod B (32); and an air inlet hole (34) is provided on the bottom side surface of the dust extraction box (33).

2. A printed circuit board dust removal device according to claim 1, characterized in that: The conveying mechanism (1) is also provided with a dust removal mechanism A (4), and the dust removal mechanism A (4) and the dust removal mechanism B (3) are arranged in sequence along the conveying direction of the conveying mechanism (1); The dust removal mechanism A (4) comprises a U-shaped frame A (41) mounted on the conveying mechanism (1), the inner top surface of the U-shaped frame A (41) is connected to a telescopic rod A (42), and a cleaning brush (43) is arranged at the end of the telescopic rod A (42).

3. A printed circuit board dust removal device according to claim 2, characterized in that: The telescopic rod A (42) and the telescopic rod B (32) have the same structure, both comprising an inner sleeve rod and an outer sleeve which are sleeved together, and a locking bolt is arranged at the end of the outer sleeve.

4. A printed circuit board dust removal device according to any one of claims 1 to 3, characterized in that: A slope (231) is provided on the top of the clamping rod (23).

5. A printed circuit board dust removal device according to any one of claims 1 to 3, characterized in that: A groove (211) is arranged on the inner side of the boss (21), a convex ring (213) is arranged on the inner side wall of the groove (211), a movable column (22) is connected to the convex ring (213) via a spring (214), and an end of the movable column (22) is connected to one side of the clamping rod (23).

6. A printed circuit board dust removal device according to claim 5, characterized in that: An electromagnet (212) is disposed on the bottom side of the groove (211); one end of the movable column (22) is provided with a convex column (221) penetrating the convex ring (213); and a magnetic block (222) is disposed at the end of the convex column (221); A power source for supplying power to the electromagnet (212) is arranged in the bottom plate (20), and a switch for controlling the on and off of the power supply to the electromagnet (212) is arranged on the boss (21).

7. A printed circuit board dust removal device according to any one of claims 1 to 3, characterized in that: The upper surface of the bottom plate (20) is provided with crisscrossed support strips (24), and the support strips (24) are made of rubber or plastic.

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