Intelligent temperature control PCBA green cleaning device

Abstract

The utility model provides intelligent temperature control PCBA green cleaning device belongs to printed circuit board manufacturing technical field to solve the problem that the dirt that existing cleaning comes down is easy to form the caking on the surface of mesh belt, is easy to pollute PCBA, influences the cleaning effect of PCBA, including cleaning machine main part, cleaning spray head, cleaning conveyer belt, cleaning drying box, antifouling drive box, antifouling drive disc, mesh belt cleaning mechanism and antifouling drive mechanism, the inside front of cleaning machine main part is fixedly connected respectively to cleaning spray head, the inside front and rear sides of cleaning machine main part are set respectively to cleaning conveyer belt, the inside intermediate position of cleaning machine main part is fixedly connected to antifouling drive box, the upper end of antifouling drive disc is rotatably connected in antifouling drive box, the below of front group cleaning conveyer belt is set to mesh belt cleaning mechanism, the inside of antifouling drive box is set to antifouling drive mechanism, avoids the PCBA that cleaning is completed and is polluted, has improved the cleaning effect to PCBA.

Description

Technical Field

[0001] This utility model belongs to the field of printed circuit board manufacturing technology, and more specifically, it relates to an intelligent temperature-controlled PCBA green cleaning device. Background Technology

[0002] In the electronics manufacturing industry, the cleaning of printed circuit board assemblies (PCBAs) is one of the key processes to ensure product reliability and performance. The main purpose of traditional PCBA cleaning is to remove residual flux, solder paste, grease, dust and other contaminants after soldering to avoid circuit corrosion, short circuits or signal interference. PCBA cleaning mainly uses physical cleaning (such as ultrasonic cleaning and spray cleaning) combined with chemical solvent cleaning. Early chlorinated hydrocarbon solvents had strong dissolving power and could effectively remove stubborn contaminants, but they were highly volatile, harmful to the human body and could damage the ozone layer. Later, to ensure green and environmentally friendly cleaning, water-based cleaning agents with deionized water as the main solvent were used, combined with surfactants and corrosion inhibitors. These have the advantages of being non-toxic, non-flammable and easy to handle, but heating or ultrasonic cleaning is required to improve efficiency.

[0003] The existing application number, CN202321031536.0, discloses a cleaning device for PCBA processing, including a cleaning tank. The cleaning tank has a base at its bottom, and a safety box is installed on the upper right side of the cleaning tank. A rotating device inside the cleaning tank extends into the safety box, and a limiting device is provided on the rotating device. Multiple limiting devices are provided. A cleaning mechanism is located at the top inside the cleaning tank, with its upper end having a through-type structure extending into the safety box. A detachable drain is installed at the bottom of the cleaning tank. This utility model, by using a rotating device inside the cleaning tank, which drives the limiting devices to rotate, allows for 360-degree rotation of the PCBA, achieving comprehensive and thorough cleaning. Furthermore, multiple limiting devices can fix multiple PCBAs, achieving high cleaning efficiency and handling large quantities.

[0004] Based on the above, existing methods for cleaning PCBAs generally use mesh belt conveyors. After cleaning, the PCBAs usually need to be dried in a drying oven. Since the same conveyor belt is used for cleaning and drying, the debris washed off during drying tends to clump on the surface of the mesh belt. This can easily contaminate the PCBAs during subsequent use, affecting the cleaning effect. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an intelligent temperature-controlled PCBA green cleaning device. This solves the problem that existing methods typically use a mesh belt conveyor for PCBA cleaning, and the cleaned PCBAs generally need to be dried in a drying oven. Since the same conveyor belt is used for both cleaning and drying, debris from the cleaning process tends to clump on the mesh belt surface during drying, easily contaminating the PCBA during subsequent use and affecting the cleaning effect.

[0006] The purpose and effectiveness of this intelligent temperature-controlled PCBA green cleaning device are achieved through the following specific technical means:

[0007] The intelligent temperature-controlled PCBA green cleaning device includes a cleaning machine body, cleaning nozzles, a cleaning conveyor belt, a cleaning and drying chamber, an anti-fouling drive box, an anti-fouling drive disc, a mesh belt cleaning mechanism, and an anti-fouling drive mechanism. Multiple sets of cleaning nozzles are fixedly connected to the front interior of the cleaning machine body. Two sets of cleaning conveyor belts are arranged on the front and rear sides of the cleaning machine body. The cleaning and drying chamber is fixedly connected to the rear interior of the cleaning machine body. The anti-fouling drive box is fixedly connected to the center of the cleaning machine body. The anti-fouling drive disc is rotatably connected to the upper end of the anti-fouling drive box, and its inner side has several mesh structures. The mesh belt cleaning mechanism is located below the front set of cleaning conveyor belts. The anti-fouling drive mechanism is located inside the anti-fouling drive box.

[0008] Furthermore, the mesh belt cleaning mechanism includes: a cleaning drive motor, cleaning rollers, and cleaning transmission gears; the cleaning drive motor is fixedly connected to the front right side of the main body of the cleaning machine; two sets of cleaning rollers are provided, each set rotatably connected inside the main body of the cleaning machine, and each set of cleaning rollers has a brush structure on its outer periphery. The upper ends of each set of cleaning rollers are in frictional contact with the front set of cleaning conveyor belts, and the front set of cleaning rollers is coaxially fixedly connected to the rotating shaft of the cleaning drive motor; two sets of cleaning transmission gears are provided, the two sets of cleaning transmission gears mesh with each other, and each set of cleaning transmission gears is coaxially fixedly connected to the left end of the cleaning roller.

[0009] Furthermore, the anti-fouling drive mechanism includes: anti-fouling guide rods and protective pickup components; four sets of anti-fouling guide rods are provided, and the four sets of anti-fouling guide rods are slidably connected to the inner side of the anti-fouling drive disk; four sets of protective pickup components are provided, and the four sets of protective pickup components are fixedly connected to the upper end of the anti-fouling guide rods, and several mesh structures are provided below the four sets of protective pickup components.

[0010] Furthermore, the anti-fouling drive mechanism also includes: an anti-fouling fastener and an anti-fouling drive protrusion; the anti-fouling fastener is fixedly connected to the upper outer side of the anti-fouling drive box; multiple sets of anti-fouling drive protrusions are provided, and the multiple sets of anti-fouling drive protrusions are respectively fixedly connected to the upper side of the anti-fouling fastener.

[0011] Furthermore, the anti-fouling drive mechanism also includes: an anti-fouling drive motor, an anti-fouling drive worm, and an anti-fouling drive worm wheel; the anti-fouling drive motor is fixedly connected inside the anti-fouling drive housing; the anti-fouling drive worm is rotatably connected inside the anti-fouling drive housing, and the anti-fouling drive worm is coaxially and fixedly connected to the rotating shaft of the anti-fouling drive motor; the anti-fouling drive worm wheel is rotatably connected inside the anti-fouling drive housing, and the anti-fouling drive worm wheel meshes with the anti-fouling drive worm.

[0012] Furthermore, the anti-fouling drive mechanism also includes an anti-fouling drive pin and an anti-fouling drive grooved wheel; the anti-fouling drive pin is coaxially and fixedly connected to the upper end of the anti-fouling drive worm gear; the anti-fouling drive grooved wheel is coaxially and fixedly connected to the lower part of the anti-fouling drive disk, and the anti-fouling drive grooved wheel and the anti-fouling drive pin together form a grooved wheel structure.

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

[0014] This invention utilizes a mesh belt cleaning mechanism. When the cleaning drive motor is turned on, its shaft rotates, causing the cleaning rollers to rotate. Under the action of the cleaning transmission gears, the two sets of cleaning rollers rotate in opposite directions. This reverse rotation of the cleaning rollers cleans the conveyor belt, ensuring its cleanliness and preventing contamination of the PCBA by debris adhering to the conveyor belt, thus improving the cleaning effect on the PCBA.

[0015] This invention utilizes an anti-fouling drive mechanism. When the anti-fouling drive motor is activated, its shaft rotates, causing the anti-fouling drive worm gear to rotate. This worm gear then rotates the anti-fouling drive worm wheel, which in turn rotates the anti-fouling drive pin. The pin rotates, which in turn rotates the anti-fouling drive disc, which in turn rotates the protective pickup component. This protective pickup component picks up the rinsed PCBA. As the protective pickup component continues to rotate, it also rotates the anti-fouling guide rod, which then contacts the anti-fouling drive protrusion. At this time, the anti-fouling guide rod is driven to move up and down, which in turn drives the protective pickup component to move up and down. The movement of the protective pickup component causes the PCBA to vibrate, and the vibration of the PCBA causes the residual water droplets on the surface to drip off, which facilitates the subsequent drying of the PCBA. At the same time, the protective pickup component transports the PCBA to a set of cleaning conveyor belts at the rear. The set of cleaning conveyor belts at the rear brings the PCBA into the interior of the cleaning and drying chamber for drying. This achieves separation of the conveying for cleaning and drying of the PCBA, avoids contamination of the cleaned PCBA, and improves the cleaning effect of the PCBA. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the cleaning transmission gear structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the anti-fouling drive worm gear structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the protective pickup component of this utility model.

[0020] Figure 5 This is a schematic diagram of the anti-fouling guide rod structure of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Cleaning machine body; 101. Cleaning drive motor; 102. Cleaning roller; 103. Cleaning transmission gear; 2. Cleaning nozzle; 3. Cleaning conveyor belt; 4. Cleaning and drying box; 5. Anti-fouling drive box; 501. Anti-fouling guide rod; 502. Protective pickup part; 503. Anti-fouling fixing part; 504. Anti-fouling drive protrusion; 505. Anti-fouling drive motor; 506. Anti-fouling drive worm gear; 507. Anti-fouling drive worm wheel; 508. Anti-fouling drive pin; 509. Anti-fouling drive grooved wheel; 6. Anti-fouling drive disc. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0024] Example 1:

[0025] As attached Figures 1 to 3 As shown:

[0026] This utility model provides an intelligent temperature-controlled PCBA green cleaning device, including a cleaning machine body 1, cleaning nozzles 2, cleaning conveyor belts 3, a cleaning and drying chamber 4, an anti-fouling drive box 5, an anti-fouling drive disc 6, and a mesh belt cleaning mechanism; multiple sets of cleaning nozzles 2 are provided, and the multiple sets of cleaning nozzles 2 are fixedly connected to the front of the inside of the cleaning machine body 1; two sets of cleaning conveyor belts 3 are provided, and the two sets of cleaning conveyor belts 3 are respectively set on the front and rear sides of the inside of the cleaning machine body 1; the cleaning and drying chamber 4 is fixedly connected to the rear of the inside of the cleaning machine body 1; the anti-fouling drive box 5 is fixedly connected to the middle position inside the cleaning machine body 1; the anti-fouling drive disc 6 is rotatably connected to the upper end of the anti-fouling drive box 5, and the inner side of the anti-fouling drive disc 6 has several mesh structures; the mesh belt cleaning mechanism is located below the front set of cleaning conveyor belts 3.

[0027] The mesh belt cleaning mechanism includes a cleaning drive motor 101, cleaning rollers 102, and cleaning transmission gears 103. The cleaning drive motor 101 is fixedly connected to the front right side of the main body 1 of the cleaning machine. Two sets of cleaning rollers 102 are provided, and the two sets of cleaning rollers 102 are rotatably connected inside the main body 1 of the cleaning machine. The outer periphery of the two sets of cleaning rollers 102 is provided with a brush structure. The upper end of the two sets of cleaning rollers 102 is in frictional contact with the front set of cleaning conveyor belts 3. The front set of cleaning rollers 102 is coaxially fixedly connected to the rotating shaft of the cleaning drive motor 101. Two sets of cleaning transmission gears 103 are provided, and the two sets of cleaning transmission gears 103 mesh with each other. The two sets of cleaning transmission gears 103 are coaxially fixedly connected to the left end of the cleaning rollers 102.

[0028] The specific usage and function of this embodiment are as follows: When cleaning the PCBA, the PCBA is placed above the cleaning conveyor belt 3. The cleaning conveyor belt 3 transports the PCBA into the interior of the cleaning machine body 1. The cleaning nozzle 2 rinses the PCBA. At the same time, the cleaning drive motor 101 is turned on. The rotating shaft of the cleaning drive motor 101 drives the cleaning roller 102 to rotate. Under the action of the cleaning transmission gear 103, the two sets of cleaning rollers 102 rotate in opposite directions. The opposite rotation of the cleaning rollers 102 cleans the cleaning conveyor belt 3, ensuring the cleanliness of the cleaning conveyor belt 3 and preventing the debris on the cleaning conveyor belt 3 from contaminating the PCBA, thus improving the cleaning effect of the PCBA.

[0029] Example 2:

[0030] This utility model provides an intelligent temperature-controlled PCBA green cleaning device, which is based on Embodiment 1, such as... Figures 1 to 5As shown, it also includes an anti-fouling drive mechanism, which is located inside the anti-fouling drive box 5.

[0031] The anti-fouling drive mechanism includes: anti-fouling guide rods 501, protective pickup parts 502, anti-fouling fixing parts 503, anti-fouling drive protrusions 504, anti-fouling drive motors 505, anti-fouling drive worm gears 506, anti-fouling drive worm wheels 507, anti-fouling drive pins 508, and anti-fouling drive grooved wheels 509. Four sets of anti-fouling guide rods 501 are provided, each slidably connected to the inner side of the anti-fouling drive disk 6. Four sets of protective pickup parts 502 are provided, each fixedly connected to the upper end of the anti-fouling guide rods 501, with several mesh structures provided below each of the four sets of protective pickup parts 502. The anti-fouling fixing parts 503 are fixedly connected to the upper outer side of the anti-fouling drive box 5. The anti-fouling drive protrusions 504... Multiple sets of anti-fouling drive protrusions 504 are fixedly connected to the top of the anti-fouling fixing component 503; the anti-fouling drive motor 505 is fixedly connected inside the anti-fouling drive housing 5; the anti-fouling drive worm 506 is rotatably connected inside the anti-fouling drive housing 5, and the anti-fouling drive worm 506 is coaxially fixedly connected to the rotating shaft of the anti-fouling drive motor 505; the anti-fouling drive worm wheel 507 is rotatably connected inside the anti-fouling drive housing 5, and the anti-fouling drive worm wheel 507 meshes with the anti-fouling drive worm 506; the anti-fouling drive pin 508 is coaxially fixedly connected to the upper end of the anti-fouling drive worm wheel 507; and the anti-fouling drive grooved wheel 509 is coaxially fixedly connected to the lower part of the anti-fouling drive disk 6, and the anti-fouling drive grooved wheel 509 and the anti-fouling drive pin 508 together form a grooved wheel structure.

[0032] The specific usage and function of this embodiment are as follows: When the PCBA is transported to the anti-fouling drive disk 6, the anti-fouling drive motor 505 is turned on. The rotating shaft of the anti-fouling drive motor 505 drives the anti-fouling drive worm gear 506 to rotate. The rotation of the anti-fouling drive worm gear 506 drives the anti-fouling drive worm wheel 507 to rotate. The rotation of the anti-fouling drive worm wheel 507 drives the anti-fouling drive pin 508 to rotate. The rotation of the anti-fouling drive pin 508 drives the anti-fouling drive disk 6 to rotate. The rotation of the anti-fouling drive disk 6 drives the protective pickup component 502 to rotate. The rotation of the protective pickup component 502 picks up the rinsed PCBA. As the protective pickup component 502 continues to rotate, it drives the anti-fouling guide rod 501 to rotate. When the anti-fouling guide rod 501 rotates and contacts the anti-fouling drive protrusion 504, the anti-fouling guide rod 501 is driven to move up and down. The up and down movement of the anti-fouling guide rod 501 drives the protective pickup 502 to move up and down. The up and down movement of the protective pickup 502 causes the PCBA to vibrate. The vibration of the PCBA causes the water droplets remaining on the surface to drip off, which facilitates the subsequent drying of the PCBA. At the same time, the protective pickup 502 transports the PCBA to a set of cleaning conveyor belts 3 at the rear. The set of cleaning conveyor belts 3 at the rear brings the PCBA into the interior of the cleaning and drying box 4 for drying. This realizes the separation of the conveying of PCBA cleaning and drying, avoids the contamination of the cleaned PCBA, and improves the cleaning effect of the PCBA.

[0033] The following points should be noted in this article:

[0034] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0035] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0036] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A smart temperature-controlled PCBA green cleaning device, characterized in that: The system includes a cleaning machine body (1), cleaning nozzles (2), a cleaning conveyor belt (3), a cleaning and drying chamber (4), an anti-fouling drive box (5), an anti-fouling drive disc (6), a mesh belt cleaning mechanism, and an anti-fouling drive mechanism. Multiple sets of cleaning nozzles (2) are provided, each fixedly connected to the front interior of the cleaning machine body (1). Two sets of cleaning conveyor belts (3) are provided, each located on the front and rear sides of the cleaning machine body (1). The cleaning and drying chamber (4) is fixedly connected to the rear interior of the cleaning machine body (1). The anti-fouling drive box (5) is fixedly connected to the middle interior of the cleaning machine body (1). The anti-fouling drive disc (6) is rotatably connected to the upper end of the anti-fouling drive box (5), and several mesh structures are provided on the inner side of the anti-fouling drive disc (6). The mesh belt cleaning mechanism is located below the front set of cleaning conveyor belts (3). The anti-fouling drive mechanism is located inside the anti-fouling drive box (5).

2. The intelligent temperature-controlled PCBA green cleaning device as described in claim 1, characterized in that: The mesh belt cleaning mechanism includes: a cleaning drive motor (101), a cleaning roller (102), and a cleaning transmission gear (103); the cleaning drive motor (101) is fixedly connected to the front right side of the main body (1) of the cleaning machine; there are two sets of cleaning rollers (102), which are rotatably connected inside the main body (1) of the cleaning machine, and the outer periphery of both sets of cleaning rollers (102) is provided with a brush structure. The upper ends of both sets of cleaning rollers (102) are in frictional contact with the front set of cleaning conveyor belts (3), and the front set of cleaning rollers (102) is coaxially fixedly connected to the rotating shaft of the cleaning drive motor (101); there are two sets of cleaning transmission gears (103), which mesh with each other, and are coaxially fixedly connected to the left end of the cleaning roller (102).

3. The intelligent temperature-controlled PCBA green cleaning device as described in claim 1, characterized in that: The anti-fouling drive mechanism includes: anti-fouling guide rods (501) and protective pickups (502); there are four sets of anti-fouling guide rods (501), and the four sets of anti-fouling guide rods (501) are slidably connected to the inner side of the anti-fouling drive disk (6); there are four sets of protective pickups (502), and the four sets of protective pickups (502) are fixedly connected to the upper end of the anti-fouling guide rods (501), and several mesh structures are opened below the four sets of protective pickups (502).

4. The intelligent temperature-controlled PCBA green cleaning device as described in claim 3, characterized in that: The anti-fouling drive mechanism further includes: an anti-fouling fastener (503) and an anti-fouling drive protrusion (504); the anti-fouling fastener (503) is fixedly connected to the upper outer side of the anti-fouling drive box (5); multiple sets of anti-fouling drive protrusions (504) are provided, and multiple sets of anti-fouling drive protrusions (504) are respectively fixedly connected to the upper side of the anti-fouling fastener (503).

5. The intelligent temperature-controlled PCBA green cleaning device as described in claim 4, characterized in that: The anti-fouling drive mechanism further includes: an anti-fouling drive motor (505), an anti-fouling drive worm (506), and an anti-fouling drive worm wheel (507); the anti-fouling drive motor (505) is fixedly connected inside the anti-fouling drive housing (5); the anti-fouling drive worm (506) is rotatably connected inside the anti-fouling drive housing (5), and the anti-fouling drive worm (506) is coaxially fixedly connected to the rotating shaft of the anti-fouling drive motor (505); the anti-fouling drive worm wheel (507) is rotatably connected inside the anti-fouling drive housing (5), and the anti-fouling drive worm wheel (507) meshes with the anti-fouling drive worm (506).

6. The intelligent temperature-controlled PCBA green cleaning device as described in claim 5, characterized in that: The anti-fouling drive mechanism also includes an anti-fouling drive pin (508) and an anti-fouling drive grooved wheel (509); the anti-fouling drive pin (508) is coaxially fixedly connected to the upper end of the anti-fouling drive worm gear (507); the anti-fouling drive grooved wheel (509) is coaxially fixedly connected to the lower part of the anti-fouling drive disk (6), and the anti-fouling drive grooved wheel (509) and the anti-fouling drive pin (508) together form a grooved wheel structure.

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