PCB (Printed Circuit Board) coating machine

Abstract

The utility model belongs to the technical field of automatic processing, and particularly relates to a PCB (Printed Circuit Board) coating machine which comprises a coating head, a machine base, a conveying mechanism and a cleaning mechanism, the conveying mechanism comprises a conveying assembly installed on the machine base and a conveying driving part connected with the conveying assembly, and the conveying driving part is used for driving the conveying assembly to transfer the PCB; the coating head is installed on the machine base and used for coating the PCB on the conveying assembly. The cleaning mechanism comprises a liquid storage container, a power pump and a spray head opposite to the conveying assembly, the liquid storage container communicates with the spray head through the power pump, and the power pump is used for spraying cleaning liquid in the liquid storage container to the conveying assembly through the spray head. According to the PCB coating machine disclosed by the utility model, cleaning liquid sprayed by the spray head can be used for cleaning the conveying assembly, so that an accident that a PCB is polluted due to the fact that too much paint is attached to the conveying assembly is avoided, and the coating quality of the PCB coating machine on the PCB is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of automated processing, in particular to a PCB board coating machine. Background Art

[0002] The PCB surface coating process is to coat a layer of material on the PCB (Printed Circuit Board) to enhance the performance and reliability of the PCB. The coating needs to cover the key parts and sensitive components of the PCB, thereby isolating the sensitive components on the PCB from the harsh environment, protecting the PCB from moisture, salt spray, mildew and other factors, and avoiding damage caused by friction or physical shock.

[0003] In the prior art, when a PCB board coating machine is coating a PCB board, the paint sprayed from the coating head will inevitably adhere to the conveying mechanism for conveying the PCB board. During the long-term use of the conveying mechanism, more and more paint will adhere to it. The conveying mechanism with a large amount of paint attached will contaminate the PCB board, thereby affecting the coating quality of the PCB board. Utility Model Content

[0004] The utility model solves the technical problem that a conveying mechanism of a coating machine in the prior art pollutes a PCB board, and provides a PCB board coating machine.

[0005] In view of the above problems, the embodiment of the utility model provides a PCB board coating machine, including a coating head, a machine base, a conveying mechanism and a cleaning mechanism;

[0006] The conveying mechanism comprises a conveying assembly mounted on the machine base and a conveying driving member connected to the conveying assembly, wherein the conveying driving member is used to drive the conveying assembly to transfer the PCB board;

[0007] The coating head is mounted on the machine base and is used to coat the PCB board on the conveying assembly;

[0008] The cleaning mechanism includes a liquid storage container, a power pump and a nozzle arranged opposite to the conveying component. The liquid storage container is connected to the nozzle through the power pump, and the power pump is used to spray the cleaning liquid in the liquid storage container onto the conveying component through the nozzle.

[0009] Optionally, the machine base includes a base and a support frame mounted on the base, the conveying assembly includes a chain, a driving gear and at least one driven wheel, the driving gear and the driven wheel are both rotatably mounted on the support frame, and the chain is sleeved on the driving gear and all the driven wheels;

[0010] The conveying driving member is installed on the supporting frame, connected to the driving gear, and used to drive the driving gear to rotate;

[0011] The spray head is arranged opposite to the chain and the driving gear.

[0012] Optionally, the base further comprises a box cover detachably mounted on the support frame, a liquid storage tank is provided between the box cover and the support frame, and the driving gear is rotatably mounted in the liquid storage tank;

[0013] The outlet of the liquid storage container is connected to the nozzle through the power pump, and the liquid storage tank is connected to the inlet of the liquid storage container.

[0014] Optionally, the chain is provided with a plurality of support shafts distributed at intervals, and the support shafts are used to support the PCB board.

[0015] Optionally, the PCB board coating machine also includes a lifting drive installed on the support frame and a limit frame installed at the output end of the lifting drive; the lifting drive is used to drive the limit frame to move toward or away from the support shaft, so that the limit frame limits the PCB board on the support shaft.

[0016] Optionally, the PCB board coating machine includes two conveying mechanisms, the machine base includes two supporting frames, and the two conveying mechanisms are mounted on the two supporting frames in a one-to-one correspondence;

[0017] The base also includes a slider and a guide rail installed on the base, and at least one of the support frames is installed on the guide rail through the slider.

[0018] Optionally, the PCB board coating machine further comprises an adjusting driving mechanism for adjusting the distance between the two conveying mechanisms;

[0019] The adjusting drive mechanism includes a rotating drive member, a screw rod and a nut sleeved on the screw rod and threadedly connected to the screw rod, the rotating drive member is installed on the base and connected to the screw rod, and the nut is installed on one of the support frames; the rotating drive member is used to drive the screw rod to rotate, so as to drive the support frame to move along the guide rail through the nut.

[0020] Optionally, the conveying mechanism further comprises a detection component mounted on the support frame, and the detection component is used to detect the position of the PCB board conveyed by the conveying component.

[0021] Optionally, a first space and a second space are provided on the base, which are spaced apart from each other vertically; the conveying mechanism and the coating head are both arranged in the first space; and the liquid storage container and the power pump are both arranged in the second space.

[0022] In the utility model, the cleaning mechanism comprises a liquid storage container, a power pump and a nozzle arranged opposite to the conveying component, the liquid storage container is connected to the nozzle through the power pump; in the process of the coating head coating the PCB board on the conveying component, the paint sprayed by the coating head will inevitably adhere to the conveying component, and the nozzle absorbs the cleaning liquid in the liquid storage container through the power pump and then sprays it onto the conveying component, so that the cleaning liquid sprayed by the nozzle can clean the conveying component, avoiding the accident of contaminating the PCB board due to too much paint adhering to the conveying component, and ensuring the coating quality of the PCB board by the PCB board coating machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 A schematic diagram of the structure of a PCB board coating machine provided in one embodiment of the utility model;

[0025] Figure 2 A partial structural schematic diagram of a PCB board coating machine provided in one embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the structure of a conveying mechanism of a PCB board coating machine provided in one embodiment of the utility model;

[0027] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0028] The reference numerals in the specification are as follows:

[0029] 1. Machine base; 11. Base; 111. First space; 112. Second space; 12. Support frame; 13. Box cover; 14. Slider; 15. Guide rail; 2. Conveying mechanism; 21. Conveying assembly; 211. Chain; 2111. Support shaft; 212. Driving gear; 213. Driven wheel; 22. Conveying drive member; 23. Detection assembly; 3. Cleaning mechanism; 31. Liquid storage container; 32. Power pump; 33. Nozzle; 4. Lifting drive member; 5. Limiting frame; 6. Adjusting drive mechanism; 61. Rotating drive member; 62. Screw rod; 63. Nut. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", and "middle" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0032] like Figures 1 to 4 As shown, an embodiment of the utility model provides a PCB board coating machine, including a coating head (not shown in the figure), a machine base 1, a conveying mechanism 2 and a cleaning mechanism 3;

[0033] The conveying mechanism 2 includes a conveying assembly 21 installed on the machine base 1 and a conveying driving member 22 connected to the conveying assembly 21, and the conveying driving member 22 is used to drive the conveying assembly 21 to move the PCB board; it can be understood that the conveying assembly 21 includes but is not limited to a chain assembly, a belt assembly, etc., and the conveying driving member 22 includes but is not limited to a motor, etc.

[0034] The coating head is mounted on the machine base 1 and is used to coat the PCB board on the conveying component 21; it can be understood that the coating head is mounted on the machine base 1 through a driving module, and the driving module can drive the coating head to move so that the coating head coats the PCB board on the conveying component 21.

[0035] The cleaning mechanism 3 includes a liquid storage container 31, a power pump 32, and a nozzle 33 arranged opposite to the conveying assembly 21. The liquid storage container 31 is connected to the nozzle 33 through the power pump 32. The power pump 32 is used to spray the cleaning liquid in the liquid storage container 31 onto the conveying assembly 21 through the nozzle 33. It can be understood that the inlet of the power pump 32 is connected to the outlet of the liquid storage container 31, the outlet of the power pump 32 is connected to the inlet of the nozzle 33, and the outlet of the nozzle 33 faces the conveying assembly 21.

[0036] In the utility model, the cleaning mechanism 3 includes a liquid storage container 31, a power pump 32 and a nozzle 33 arranged opposite to the conveying component 21, and the liquid storage container 31 is connected to the nozzle 33 through the power pump 32; in the process of the coating head coating the PCB board on the conveying component 21, the paint sprayed by the coating head will inevitably adhere to the conveying component 21, and the nozzle 33 absorbs the cleaning liquid in the liquid storage container 31 through the power pump 32 and then sprays it onto the conveying component 21, so that the cleaning liquid sprayed by the nozzle 33 can clean the conveying component 21, avoiding the accident of contaminating the PCB board due to too much paint adhering to the conveying component 21, and ensuring the coating quality of the PCB board by the PCB board coating machine.

[0037] In one embodiment, if Figure 3 and Figure 4 As shown, the machine base 1 includes a base 11 and a support frame 12 installed on the base 11, the conveying assembly 21 includes a chain 211, a driving gear 212 and at least one driven wheel 213, the driving gear 212 and the driven wheel 213 are both rotatably installed on the support frame 12, and the chain 211 is sleeved on the driving gear 212 and all the driven wheels 213; it can be understood that the driven wheels 213 include but are not limited to gears, rotating wheels, etc., and the number of the driven wheels 213 can be set according to actual needs.

[0038] The conveying driving member 22 is installed on the supporting frame 12, connected to the driving gear 212, and is used to drive the driving gear 212 to rotate; it can be understood that the conveying driving member 22 drives the driving gear 212 to rotate, and the driving gear 212 drives the chain 211 to rotate around the driven wheel 213, so that the chain 211 can drive the PCB board thereon to move.

[0039] The spray head 33 is arranged opposite to the chain 211 and the driving gear 212. It can be understood that the outlet of the spray head 33 faces the meshing portion of the chain 211 and the driving gear 212. Specifically, the spray head 33 absorbs the cleaning liquid in the liquid storage container 31 through the power pump 32, and sprays it to the meshing portion of the driving gear 212 and the chain 211, so that the cleaning liquid sprayed by the spray head 33 can clean the chain 211 and lubricate the driving gear 212 and the chain 211. In this embodiment, the conveying mechanism 2 has a simple structure, low manufacturing cost and high stability.

[0040] In one embodiment, if Figure 2As shown, the base 1 also includes a box cover 13 detachably mounted on the support frame 12, a liquid storage tank is provided between the box cover 13 and the support frame 12, and the driving gear 212 is rotatably mounted in the liquid storage tank; it can be understood that the box cover 13 can be installed on the side of the support frame 12, and the top of the liquid storage tank is an opening, the nozzle 33 is installed on the side wall of the liquid storage tank, and a liquid outlet is provided at the bottom of the liquid storage tank.

[0041] The outlet of the liquid storage container 31 is connected to the spray head 33 through the power pump 32, and the liquid storage tank is connected to the inlet of the liquid storage container 31. It can be understood that the cleaning liquid sprayed by the spray head 33 to the meshing part of the driving gear 212 and the chain 211 will fall into the liquid storage tank, and the cleaning liquid in the liquid storage tank will flow back into the liquid storage container 31, thereby ensuring the utilization rate of the cleaning liquid in the liquid storage container 31.

[0042] Furthermore, the cleaning mechanism 3 also includes a filter, and the liquid storage tank is connected to the inlet of the liquid storage container 31 through the filter. The filter can filter the cleaning liquid flowing into the liquid storage tank, thereby ensuring the cleanliness of the cleaning liquid flowing into the liquid storage container 31.

[0043] In one embodiment, if Figure 1 As shown, the chain 211 is provided with a plurality of support shafts 2111 distributed at intervals, and the support shafts 2111 are used to support the PCB board. It can be understood that the support shafts 2111 extend toward the side of the chain 211, and the PCB board is placed on the support shafts 2111, so that when the conveying drive member 22 drives the chain 211 to rotate, the chain 211 can play a role in transferring the PCB board through the support shafts 2111. In this embodiment, the conveying mechanism 2 has a simple structure and low manufacturing cost.

[0044] In one embodiment, if Figure 2 and Figure 3 As shown, the PCB coating machine further includes a lifting drive 4 mounted on the support frame 12 and a limit frame 5 mounted on the output end of the lifting drive 4; the lifting drive 4 is used to drive the limit frame 5 to move toward or away from the support shaft 2111, so that the limit frame 5 limits the PCB board on the support shaft 2111. It can be understood that the lifting drive 4 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder, and a linear motor; the limit member is arranged on the support shaft 2111.

[0045] Specifically, the lifting drive 4 can adjust the distance between the limit frame 5 and the support shaft 2111, so that the limit frame 5 can limit the PCB board on the support shaft 2111, and then the limit frame 5 can avoid the accident of the PCB board falling on the support shaft 2111, thereby ensuring the stability of the chain 211 in supporting and conveying the PCB board.

[0046] In one embodiment, if Figure 2 and Figure 3 As shown, the PCB board coating machine includes two conveying mechanisms 2, and the machine base 1 includes two supporting frames 12. The two conveying mechanisms 2 are installed on the two supporting frames 12 in a one-to-one correspondence; it can be understood that the two conveying mechanisms 2 are installed on the base 1 at intervals along the left and right directions, so that the two conveying mechanisms 2 can support the PCB board from the left and right sides.

[0047] The base 1 further includes a slider 14 and a guide rail 15 mounted on the base 11, and at least one of the support frames 12 is mounted on the guide rail 15 via the slider 14. It can be understood that the guide rail 15 is mounted on the base 11 along the connecting direction of the two conveying mechanisms 2.

[0048] Specifically, by sliding the slider 14 on the guide rail 15, the two support frames 12 are adjusted, and then the distance between the two support frames 12 is adjusted, so that the two conveying mechanisms 2 can convey PCB boards of different widths (different sizes), thereby improving the applicability and versatility of the PCB board coating machine.

[0049] In one embodiment, if Figure 2 As shown, the PCB board coating machine also includes an adjusting driving mechanism 6 for adjusting the distance between the two conveying mechanisms 2;

[0050] The adjusting drive mechanism 6 includes a rotating drive member 61, a screw rod 62, and a nut 63 which is sleeved on the screw rod 62 and threadedly connected to the screw rod 62. The rotating drive member 61 is installed on the base 11 and connected to the screw rod 62, and the nut 63 is installed on one of the support frames 12. The rotating drive member 61 is used to drive the screw rod 62 to rotate, so as to drive the support frame 12 to move along the guide rail 15 through the nut 63.

[0051] Specifically, the rotary drive member 61 drives the screw rod 62 to rotate, and the screw rod 62 slides on the guide rail 15 through the nut 63, thereby adjusting the distance between the two conveying mechanisms 2. In this embodiment, the design of the adjusting drive mechanism 6 improves the convenience and automation degree of the PCB board coating machine.

[0052] In one embodiment, if Figure 2 and Figure 3 As shown, the conveying mechanism 2 also includes a detection component 23 installed on the support frame 12, and the detection component 23 is used to detect the position where the conveying component 21 conveys the PCB board. It can be understood that the number of detection components in the detection component 23 can be set according to the continuous demand. For example, the detection component 23 includes an inlet sensor, a positioning sensor and an outlet sensor arranged at intervals. The inlet sensor is used to detect whether there is a PCB board at the inlet of the conveying component 21, the outlet sensor is used to detect whether there is a PCB board at the outlet of the conveying component 21, and the positioning sensor is used to detect whether the conveying component 21 moves the PCB board to the processing position of the coating head. In this embodiment, the design of the detection component 23 further improves the automation of the PCB board coating machine.

[0053] In one embodiment, if Figure 1 As shown, the base 11 is provided with a first space 111 and a second space 112 which are spaced apart from each other in an upper and lower direction, the conveying mechanism 2 and the coating head are both arranged in the first space 111, and the liquid storage container 31 and the power pump 32 are both arranged in the second space 112. It can be understood that the first space 111 is located above the second space 112, and the adjustment drive mechanism 6 is also arranged in the second space 112. In this embodiment, the design of the first space 111 and the second space 112 on the base 11 enables different components of the PCB board coating machine to be installed in different spaces, thereby preventing the oil and gas sprayed by the coating head into the first space 111 from contaminating the components in the second space 112, thereby ensuring the compactness of the PCB board coating machine and the cleanliness of the PCB board coating machine.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PCB board coating machine, characterized in that: It includes a coating head, a machine base, a conveying mechanism and a cleaning mechanism; The conveying mechanism comprises a conveying assembly mounted on the machine base and a conveying driving member connected to the conveying assembly, wherein the conveying driving member is used to drive the conveying assembly to transfer the PCB board; The coating head is mounted on the machine base and is used to coat the PCB board on the conveying assembly; The cleaning mechanism includes a liquid storage container, a power pump and a nozzle arranged opposite to the conveying component. The liquid storage container is connected to the nozzle through the power pump, and the power pump is used to spray the cleaning liquid in the liquid storage container onto the conveying component through the nozzle.

2. The PCB board coating machine according to claim 1, characterized in that: The machine base includes a base and a support frame mounted on the base, the conveying assembly includes a chain, a driving gear and at least one driven wheel, the driving gear and the driven wheel are both rotatably mounted on the support frame, and the chain is sleeved on the driving gear and all the driven wheels; The conveying driving member is installed on the supporting frame, connected to the driving gear, and used to drive the driving gear to rotate; The spray head is arranged opposite to the chain and the driving gear.

3. The PCB board coating machine according to claim 2, characterized in that: The base further comprises a box cover detachably mounted on the support frame, a liquid storage tank is provided between the box cover and the support frame, and the driving gear is rotatably mounted in the liquid storage tank; The outlet of the liquid storage container is connected to the nozzle through the power pump, and the liquid storage tank is connected to the inlet of the liquid storage container.

4. The PCB board coating machine according to claim 2, characterized in that: The chain is provided with a plurality of support shafts distributed at intervals, and the support shafts are used to support the PCB board.

5. The PCB board coating machine according to claim 4, characterized in that: The PCB board coating machine also includes a lifting drive installed on the support frame and a limit frame installed at the output end of the lifting drive; the lifting drive is used to drive the limit frame to move toward or away from the support shaft, so that the limit frame limits the PCB board on the support shaft.

6. The PCB board coating machine according to claim 2, characterized in that: The PCB board coating machine comprises two conveying mechanisms, the machine base comprises two supporting frames, and the two conveying mechanisms are mounted on the two supporting frames in a one-to-one correspondence; The base also includes a slider and a guide rail installed on the base, and at least one of the support frames is installed on the guide rail through the slider.

7. The PCB coating machine according to claim 6, characterized in that: The PCB board coating machine also includes an adjustment drive mechanism for adjusting the distance between the two conveying mechanisms; The adjusting drive mechanism includes a rotating drive member, a screw rod and a nut sleeved on the screw rod and threadedly connected to the screw rod, the rotating drive member is installed on the base and connected to the screw rod, and the nut is installed on one of the support frames; the rotating drive member is used to drive the screw rod to rotate, so as to drive the support frame to move along the guide rail through the nut.

8. The PCB board coating machine according to claim 2, characterized in that: The conveying mechanism further comprises a detection component mounted on the support frame, and the detection component is used to detect the position of the PCB board conveyed by the conveying component.

9. The PCB board coating machine according to claim 2, characterized in that: The base is provided with a first space and a second space spaced apart in an upper and lower direction, the conveying mechanism and the coating head are both arranged in the first space, and the liquid storage container and the power pump are both arranged in the second space.

Images