Automatic mounting mechanism for printed circuit board

Abstract

The utility model provides an automatic mounting mechanism for a printed circuit board, which comprises a suction nozzle and a filter screen arranged in the suction nozzle, and a cleaning mechanism for removing impurities at the bottom of the filter screen is arranged in the suction nozzle. The cleaning mechanism comprises a rotating shaft rotationally connected to the filter screen, a cleaning brush arranged at the bottom end of the rotating shaft and a driving structure arranged in the suction nozzle and used for driving the rotating shaft to rotate, and an air blowing mechanism is arranged above the filter screen. Through the cooperation of the cleaning mechanism and the blowing mechanism, residual dust on the filter screen can be cleaned by utilizing the cleaning mechanism, and meanwhile, the blowing mechanism can blow air to the filter screen, so that cleaned impurities can be blown to be separated from the filter screen, pores of the filter screen can be deeply cleaned, and residual small particles in the pores can be blown out; and the cleaning effect on the filter screen is further improved, so that the cleaning work on the filter screen becomes efficient and rapid, and the working efficiency of automatic mounting of the printed circuit board is ensured.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board processing technology, and in particular to an automatic mounting mechanism for printed circuit boards. Background Technology

[0002] In the modern electronics industry, printed circuit boards (PCBs) are a key component of electronic devices. The precision and efficiency of their manufacturing process directly affect the performance and quality of electronic products. Automated placement, as an important step in the PCB manufacturing process, is responsible for accurately and quickly mounting various electronic components onto the PCB board.

[0003] Application No. 202321606839.0 discloses an automatic placement mechanism for printed circuit boards, including a suction nozzle and a filtering mechanism. The filtering mechanism is located below the suction nozzle. The filtering mechanism includes a connecting shell, a sealing plate, a filter screen, and a detachable connecting assembly. The sealing plate is located below the suction nozzle, the filter screen is embedded in the sealing plate, the connecting shell passes through the filter screen and is located below the sealing plate, and the detachable connecting assembly is located at the connection between the top wall of the connecting shell and the outer wall of the suction nozzle. This utility model belongs to the field of printed circuit board processing technology, specifically referring to an automatic placement mechanism for printed circuit boards that filters dust through the filtering mechanism to prevent dust from entering the placement machine through the suction nozzle and affecting the placement machine, while also facilitating the disassembly, replacement, or cleaning of the filter screen.

[0004] The above solution has shortcomings in use. When cleaning the filter, it is necessary to remove the filter from the suction nozzle to clean it. Disassembling and installing the filter consumes a lot of time, which seriously affects the overall working efficiency of the automatic placement mechanism for printed circuit boards. Therefore, we provide an automatic placement mechanism for printed circuit boards. Utility Model Content

[0005] This utility model provides an automatic mounting mechanism for printed circuit boards to solve the technical problems existing in the background art.

[0006] The purpose and effect of this utility model for an automatic placement mechanism for printed circuit boards are achieved by the following specific technical means: An automatic placement mechanism for printed circuit boards includes a suction nozzle and a filter screen disposed inside the suction nozzle. The suction nozzle is provided with a cleaning mechanism for removing impurities from the bottom of the filter screen. The cleaning mechanism includes a rotating shaft rotatably connected to the filter screen, a cleaning brush disposed at the bottom of the rotating shaft, and a driving structure disposed inside the suction nozzle for driving the rotating shaft to rotate. An air blowing mechanism is disposed above the filter screen, and a conical suction head is disposed at the bottom of the suction nozzle.

[0007] Preferably, the driving structure of the cleaning mechanism includes a worm gear rotatably connected to the suction nozzle, a worm wheel meshing with the outside of the worm gear, and the bottom surface of the worm wheel being connected to the top end of the rotating shaft.

[0008] Preferably, the drive structure of the cleaning mechanism further includes a connecting shaft rotatably connected to the outer surface of the suction nozzle, a large gear fixedly connected to the outer surface of the connecting shaft, and a small gear fixedly connected to the outer surface of the worm gear meshing with the outer surface of the large gear.

[0009] Preferably, a reinforcing plate is rotatably connected to the outer surface of the rotating shaft, and the other end of the reinforcing plate is connected to the inner wall of the suction nozzle.

[0010] Preferably, a throttle is fixedly connected to the other end of the connecting shaft, and the outside of the throttle is provided with anti-slip texture.

[0011] Preferably, a protective shell is rotatably connected to the outer surface of the connecting shaft, and one side of the protective shell is connected to the outer surface of the suction nozzle.

[0012] Preferably, the blowing mechanism includes an annular tube disposed outside the suction nozzle, the outer surface of the annular tube being connected to an annularly arranged jet nozzles, each jet nozzle extending into the interior of the suction nozzle and located above the filter screen, and the outer surface of the annular tube being connected to a telescopic tube.

[0013] Preferably, a reinforcing rod is fixedly connected to the outer surface of each jet head, and the top end of each reinforcing rod is connected to the inner wall of the nozzle.

[0014] Beneficial effects:

[0015] 1. Through the cooperation of the cleaning mechanism and the air blowing mechanism, the cleaning mechanism can brush away the dust remaining on the filter screen, while the air blowing mechanism can blow air onto the filter screen to blow away the cleaned impurities and remove them from the filter screen. It can also perform deep cleaning of the filter screen pores, blowing out the tiny particles remaining in the pores, further improving the cleaning effect of the filter screen and making the cleaning work of the filter screen more efficient and faster, thereby ensuring the work efficiency of automatic mounting of printed circuit boards.

[0016] 2. The cone-shaped suction head can effectively rectify the turbulent airflow inside the nozzle, guiding the airflow from the larger diameter to the smaller diameter, gradually forming a stable and concentrated airflow stream, which can ensure the stable adsorption of various micro electronic components. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural schematic diagram of the nozzle of this utility model, shown in a cross-sectional view.

[0019] Figure 3 This is a three-dimensional structural diagram of the cleaning mechanism of this utility model.

[0020] Figure 4 This is a three-dimensional structural schematic diagram of the protective shell of this utility model, shown in a cross-sectional view.

[0021] Figure 5 This is a three-dimensional structural diagram of the air blowing mechanism of this utility model.

[0022] Figure 1-5 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Suction nozzle; 2. Filter screen; 3. Cleaning mechanism; 301. Rotary shaft; 302. Cleaning brush; 303. Worm gear; 304. Worm wheel; 305. Connecting shaft; 306. Large gear; 307. Small gear; 308. Reinforcing plate; 309. Turn handle; 310. Protective shell; 4. Air blowing mechanism; 401. Ring tube; 402. Air jet head; 403. Telescopic tube; 404. Reinforcing rod; 5. Conical suction head. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 With appendix Figure 4As shown: An automatic placement mechanism for printed circuit boards includes a suction nozzle 1 and a filter screen 2 disposed inside the suction nozzle 1. The suction nozzle 1 has a cleaning mechanism 3 for removing impurities from the bottom of the filter screen 2. The cleaning mechanism 3 includes a rotating shaft 301 rotatably connected to the filter screen 2, a cleaning brush 302 disposed at the bottom of the rotating shaft 301, and a drive structure disposed inside the suction nozzle 1 for driving the rotating shaft 301 to rotate. The drive structure of the cleaning mechanism 3 includes a worm gear 303 rotatably connected to the suction nozzle 1. A worm wheel 304 meshes with the outside of the worm gear 303. The bottom surface of the worm wheel 304 is connected to the top surface of the rotating shaft 301. The mechanism utilizes the rotation of the worm gear 303 to... The rotating shaft 301 drives the worm gear 304 to rotate, which in turn drives the cleaning brush 302 to rotate around the bottom of the filter screen 2, thus cleaning the bottom of the filter screen 2. The driving structure of the cleaning mechanism 3 also includes a connecting shaft 305 rotatably connected to the outer surface of the suction nozzle 1. A large gear 306 is fixedly connected to the outer surface of the connecting shaft 305. A small gear 307 is fixedly connected to the outer surface of the worm gear 303 and meshes with the outside of the large gear 306. The rotation of the large gear 306 can drive the small gear 307 to rotate rapidly, thereby increasing the rotation speed of the worm gear 303 and further increasing the rotation speed of the cleaning brush 302 driven by the rotating shaft 301.

[0026] As attached Figure 3 With appendix Figure 4 As shown: A reinforcing plate 308 is rotatably connected to the outer surface of the rotating shaft 301. The other end of the reinforcing plate 308 is connected to the inner wall of the suction nozzle 1. The reinforcing plate 308 connects the rotating shaft 301 and the suction nozzle 1, enhancing the stability of the rotating shaft 301. A handle 309 is fixedly connected to the other end of the connecting shaft 305. The handle 309 has anti-slip texture on its outside. The handle 309 facilitates the rotation of the connecting shaft 305 by the operator, making operation more convenient. A protective shell 310 is rotatably connected to the outer surface of the connecting shaft 305. One side of the protective shell 310 is connected to the outer surface of the suction nozzle 1. The protective shell 310 protects the large gear 306 and the small gear 307, enabling them to achieve normal transmission.

[0027] As attached Figure 1 Appendix Figure 2 With appendix Figure 5As shown: An air blowing mechanism 4 is provided above the filter screen 2. The air blowing mechanism 4 includes an annular tube 401 disposed outside the suction nozzle 1. The outer surface of the annular tube 401 is connected to an annularly arranged jet nozzles 402. Each jet nozzle 402 extends into the interior of the suction nozzle 1 and is located above the filter screen 2. The outer surface of the annular tube 401 is connected to a telescopic tube 403. When air is blown into the telescopic tube 403 by an external air blowing device, the air will enter the jet nozzles 402 along the annular tube 401 and be blown towards the filter screen 2. It can not only blow away the impurities that have loosened but not yet fallen off during the cleaning process of the cleaning brush 302, but also deeply clean the pores of the filter screen 2, blowing out the tiny particles remaining in the pores, further improving the cleaning effect of the filter screen 2. Each jet head 402 has a reinforcing rod 404 fixedly connected to its outer surface. The top of each reinforcing rod 404 is connected to the inner wall of the nozzle 1. The reinforcing rod 404 can be used to reinforce and stabilize the jet head 402, so that the jet head 402 remains stable when blowing air.

[0028] As attached Figure 1 With appendix Figure 2 As shown: A conical suction head 5 is provided at the bottom of the nozzle 1. The conical suction head 5 can effectively rectify the turbulent airflow inside the nozzle 1, guiding the airflow from the larger diameter to the smaller diameter. In this process, the originally chaotic airflow is constrained and guided by the conical inner wall, gradually forming a stable and concentrated airflow stream. This orderly airflow state can ensure the stable adsorption of various micro electronic components, thereby greatly improving the reliability and accuracy of the adsorption process in the electronic component mounting process.

[0029] Working principle: When the filter screen 2 needs to be cleaned, the connecting shaft 305 is rotated, and the large gear 306 drives the small gear 307 to rotate rapidly. At the same time, the worm gear 303 drives the worm wheel 304 to rotate, and the rotating shaft 301 drives the cleaning brush 302 to rotate around the bottom of the filter screen 2, thus completing the cleaning of the bottom of the filter screen 2. Simultaneously, the external air blowing device is controlled to inject air into the annular tube 401 through the telescopic tube 403. The air is then sprayed from the jet nozzle 402 onto the filter screen 2, which can blow air onto the filter screen 2 during cleaning. This not only blows away the impurities that have loosened but not yet fallen off during the cleaning process of the cleaning brush 302, but also deeply cleans the pores of the filter screen 2, blowing out the tiny particles remaining in the pores, further improving the cleaning effect of the filter screen 2, making the cleaning of the filter screen 2 efficient and fast, thereby ensuring the work efficiency of automatic mounting of printed circuit boards.

Claims

1. An automatic mounting mechanism for printed circuit boards, comprising a suction nozzle (1) and a filter (2) disposed inside the suction nozzle (1), characterized in that: The nozzle (1) is provided with a cleaning mechanism (3) for removing impurities from the bottom of the filter screen (2). The cleaning mechanism (3) includes a rotating shaft (301) rotatably connected to the filter screen (2), a cleaning brush (302) disposed at the bottom of the rotating shaft (301), and a driving structure disposed inside the nozzle (1) for driving the rotating shaft (301) to rotate. An air blowing mechanism (4) is disposed above the filter screen (2), and a conical suction head (5) is disposed at the bottom of the nozzle (1).

2. The automatic mounting mechanism for printed circuit boards according to claim 1, characterized in that: The driving structure of the cleaning mechanism (3) includes a worm gear (303) rotatably connected to the suction nozzle (1), and a worm wheel (304) meshes with the outside of the worm gear (303). The bottom surface of the worm wheel (304) is connected to the top of the rotating shaft (301).

3. The automatic mounting mechanism for printed circuit boards according to claim 1, characterized in that: The driving structure of the cleaning mechanism (3) further includes a connecting shaft (305) rotatably connected to the outer surface of the suction nozzle (1). A large gear (306) is fixedly connected to the outer surface of the connecting shaft (305), and a small gear (307) is fixedly connected to the outer surface of the worm (303) meshing with the outside of the large gear (306).

4. The automatic mounting mechanism for printed circuit boards according to claim 1, characterized in that: A reinforcing plate (308) is rotatably connected to the outer surface of the rotating shaft (301), and the other end of the reinforcing plate (308) is connected to the inner wall of the suction nozzle (1).

5. The automatic mounting mechanism for printed circuit boards according to claim 3, characterized in that: The other end of the connecting shaft (305) is fixedly connected to a throttle (309), and the outside of the throttle (309) is provided with anti-slip texture.

6. The automatic placement mechanism for printed circuit boards according to claim 3, characterized in that: The outer surface of the connecting shaft (305) is rotatably connected to a protective shell (310), and one side of the protective shell (310) is connected to the outer surface of the suction nozzle (1).

7. The automatic mounting mechanism for printed circuit boards according to claim 1, characterized in that: The blowing mechanism (4) includes an annular tube (401) disposed outside the suction nozzle (1), the outer surface of the annular tube (401) is connected to an annularly arranged jet nozzles (402), each jet nozzle (402) extends into the interior of the suction nozzle (1) and is located above the filter screen (2), and the outer surface of the annular tube (401) is connected to a telescopic tube (403).

8. The automatic mounting mechanism for printed circuit boards according to claim 7, characterized in that: Each of the jet heads (402) has a reinforcing rod (404) fixedly connected to its outer surface, and the top of each reinforcing rod (404) is connected to the inner wall of the nozzle (1).

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