PCB (Printed Circuit Board) chemical decontamination equipment

Abstract

The utility model relates to PCB chemical decontamination equipment which comprises a feeding assembly, a first overturning assembly, two cleaning pools, a cleaning assembly, a drying assembly, a second overturning assembly, a material moving robot and a discharging assembly, the first overturning assembly is provided with a first overturning end, acid liquor is contained in one cleaning pool, alkali liquor is contained in the other cleaning pool, and the second overturning assembly is provided with a second overturning end. The cleaning assembly is provided with a cleaning end, the drying assembly is provided with a drying end, the second overturning assembly is provided with a second overturning end, and the material moving robot is provided with a clamping end; the feeding assembly conveys horizontally-placed PCBs to the first overturning assembly, the first overturning assembly overturns the PCBs to be in a vertical state, the material moving robot drives the PCBs in the vertical state to sequentially pass through the two cleaning pools, the cleaning assembly and the drying assembly, and finally the second overturning assembly overturns the PCBs in the vertical state to be in a horizontal state. The whole chemical decontamination process is high in automation degree, the labor cost is saved, and the health of workers is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBs, in particular to PCB chemical decontamination equipment. Background Art

[0002] Existing PCB boards need to undergo various processing during the production process, including chemical decontamination and cleaning (acid washing and alkaline washing) of the PCB board surface.

[0003] Since the concentrations of hydrochloric acid and sodium hydroxide used in pickling or alkaline washing are high, these chemicals are volatile, have a strong pungent odor, and are highly corrosive, endangering the health of on-site workers. Utility Model Content

[0004] In view of this, it is necessary to provide PCB chemical decontamination equipment to solve the problem that the high concentration of hydrochloric acid and sodium hydroxide used in acid or alkaline cleaning endangers the health of on-site workers.

[0005] The utility model provides PCB chemical decontamination equipment, including a loading component, a first flip component, two cleaning tanks, a cleaning component, a drying component, a second flip component, a material transfer robot and a blanking component, wherein the loading component is used to convey a horizontally placed PCB board, the first flip component is used to receive the PCB board conveyed by the loading component, the first flip component has a first flip end for flipping the PCB board to a vertical state, one of the cleaning tanks contains acid, and the other cleaning tank contains alkali solution, the cleaning component has a cleaning end, the drying component has a drying end, the second flip component has a second flip end for flipping the PCB board to a horizontal state, the material transfer robot has a clamping end for clamping the PCB board in a vertical state, and drives the clamped PCB board to move to the first flip component, the two cleaning tanks, the cleaning component, the drying component and the second flip component in sequence, and the feeding end of the blanking component is used to connect with the PCB board in a horizontal state on the second flip component.

[0006] Furthermore, the feeding assembly includes a feeding bracket, a feeding transmission line, a feeding horizontal moving part, a feeding vertical moving part and a first electromagnetic suction part. The feeding end of the feeding transmission line is arranged close to the feeding bracket, and the discharging end of the feeding transmission line extends to a position close to the first flipping assembly. The feeding horizontal moving part is installed on the top of the feeding bracket, and the output end of the feeding horizontal moving part is connected to the feeding vertical moving part to drive the feeding vertical moving part to move close to or away from the feeding end of the feeding transmission line. The output end of the feeding vertical moving part is connected to the first electromagnetic suction part to drive the first electromagnetic suction part to move in the vertical direction. The first electromagnetic suction part is magnetic when powered on and non-magnetic when powered off.

[0007] Furthermore, the first flipping assembly includes a first support frame, a flipping lifting member, a rotating member, and a second electromagnetic suction member. The flipping lifting member is slidingly connected to the first support frame in a vertical direction, and the second electromagnetic suction member is rotationally connected to the flipping lifting member along a horizontal axis direction. The rotating member is installed on the flipping lifting member, and the output end of the rotating member is connected to the second electromagnetic suction member to drive the second electromagnetic suction member to rotate. The second electromagnetic suction member is magnetic when powered on and non-magnetic when powered off. The discharge end of the loading transmission line extends to a position below the second electromagnetic suction member.

[0008] Furthermore, the PCB chemical decontamination equipment also includes two inlet and outlet drug pipes installed on the side walls of the cleaning tank, and valves installed on the two inlet and outlet drug pipes.

[0009] Furthermore, the cleaning assembly includes a cleaning box, a cleaning lifting member, a cleaning cylinder and a plurality of spray heads. The top of the cleaning box is open. The cleaning lifting member is located in the cleaning box and is slidably connected to the cleaning box in the vertical direction. The cleaning lifting member is a C-shaped structure with the opening facing upward. The top of the horizontal part of the cleaning lifting member is provided with a slot for fixing the PCB board in a vertical state. The cleaning cylinder is installed on the cleaning box. The output end of the cleaning cylinder is connected to the cleaning lifting member for driving the cleaning lifting member to slide. The plurality of spray heads are respectively installed on both sides of the cleaning box and are arranged to point to the front and back sides of the PCB board located in the cleaning box.

[0010] Furthermore, the drying component includes an oven, a slide, a positioning frame, a transverse cylinder and a hot air blower. The slide is partially located in the oven. The top of the positioning frame is open and recessed downward to form a positioning cavity for placing a PCB board in a vertical state. The positioning frame is slidably connected to the top of the slide. The transverse cylinder is installed on the slide. The output end of the transverse cylinder is connected to the positioning frame to drive the positioning frame in and out of the oven. A hot air blower is installed on the inner top wall of the oven.

[0011] Furthermore, the second flip assembly includes a second support frame, a rotating frame, and a lifting member. The bottom of the rotating frame is hinged to the second support frame, the bottom of the lifting member is hinged to the second support frame, and the top of the lifting member is hinged to the rotating frame to drive the rotating frame to rotate. A retaining groove is formed at the bottom of one side of the rotating frame for fixing a PCB board in a vertical state.

[0012] Furthermore, the rotating frame is arranged on a side away from the retaining groove and close to the feed end of the blanking assembly, and the length of the rotating frame along the direction perpendicular to its rotation is set to be smaller than the length of the PCB board, so that when the rotating frame rotates to a horizontal position, the PCB board part thereon overlaps the feed end of the blanking assembly.

[0013] Furthermore, the second flip assembly also includes a centering positioning member, which includes two side plates and two driving members arranged on both sides of the rotating frame. The two side plates are rotatably connected to the rotating frame along a direction perpendicular to the rotation of the rotating frame. The two driving members are installed on the rotating frame and are respectively connected to the two side plates to drive the two side plates to rotate so as to adjust the distance between the two side plates.

[0014] Furthermore, the material transfer robot includes a robot body, two clamps and a bidirectional cylinder. The execution end of the robot body is connected to the two clamps via the bidirectional cylinder. The bidirectional cylinder is used to drive the two clamps to move relative to or away from each other.

[0015] Compared with the existing technology, the stacked PCB boards to be cleaned can be placed on the loading assembly. The loading assembly transports the horizontally placed PCB boards to the first flipping assembly. The first flipping assembly flips the PCB boards to a vertical state. The material transfer robot drives the PCB boards it clamps in a vertical state through two cleaning tanks (acid washing and alkaline washing), a cleaning assembly (cleaning chemical reagents) and a drying assembly in sequence. Finally, the second flipping assembly flips the vertical PCB boards to a horizontal state, and finally unloads them through the unloading assembly. The entire chemical decontamination process is highly automated, saving labor costs and avoiding harm to employee health. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of the PCB chemical decontamination equipment provided in an embodiment of the utility model;

[0017] Figure 2 A schematic structural diagram of a loading assembly in a PCB chemical decontamination device provided by an embodiment of the present invention;

[0018] Figure 3 A schematic structural diagram of a first flip assembly in a PCB chemical decontamination device provided by an embodiment of the present invention from one perspective;

[0019] Figure 4 A structural schematic diagram of another perspective of the first flip assembly in the PCB chemical decontamination equipment provided by an embodiment of the present utility model;

[0020] Figure 5 A schematic diagram of the structure of a cleaning tank in a PCB chemical decontamination device provided by an embodiment of the present utility model;

[0021] Figure 6 A schematic structural diagram of a cleaning component in a PCB chemical decontamination device provided by an embodiment of the present invention;

[0022] Figure 7 A schematic structural diagram of a drying component in a PCB chemical decontamination device provided by an embodiment of the present invention;

[0023] Figure 8 A schematic structural diagram of a second flip assembly in a PCB chemical decontamination device provided by an embodiment of the present invention from one perspective;

[0024] Figure 9 A schematic structural diagram of another perspective of the second flip assembly in the PCB chemical decontamination equipment provided by an embodiment of the present utility model;

[0025] Figure 10 This is a structural schematic diagram of a material transfer robot in a PCB chemical decontamination device provided by an embodiment of the present utility model. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0027] like Figure 1 As shown, the PCB chemical decontamination equipment provided by the present invention includes a loading component 100, a first flip component 200, two cleaning tanks 300, a cleaning component 400, a drying component 500, a second flip component 600, a material transfer robot 700 and a unloading component 800. The loading component 100 is used to transport horizontally placed PCB boards, the first flip component 200 is used to receive the PCB boards transported by the loading component 100, and the first flip component 200 has a first flip end for flipping the PCB board to a vertical state. One of the cleaning tanks 300 contains acid, and the other cleaning tank 300 contains acid. 00 is filled with alkaline solution, the cleaning component 400 has a cleaning end, the drying component 500 has a drying end, and the second flip component 600 has a second flip end for flipping the PCB board to a horizontal state. The material transfer robot 700 has a clamping end for clamping the PCB board in a vertical state, and drives the clamped PCB board to move to the first flip component 200, the two cleaning tanks 300, the cleaning component 400, the drying component 500 and the second flip component 600 in sequence. The feeding end of the blanking component 800 is used to connect with the PCB board in a horizontal state on the second flip component 600.

[0028] During implementation, stacked PCB boards to be cleaned can be placed on the loading assembly 100. The loading assembly 100 transports the horizontally placed PCB boards to the first flipping assembly 200. The first flipping assembly 200 flips the PCB boards to a vertical state. The material transfer robot 700 drives the PCB boards it clamps in a vertical state through two cleaning tanks 300 (acid washing and alkaline washing), the cleaning assembly 400 (cleaning chemical reagents) and the drying assembly 500 in sequence. Finally, the second flipping assembly 600 flips the vertical PCB boards to a horizontal state, and finally unloads them through the unloading assembly 800. The entire chemical decontamination process is highly automated, saving labor costs and avoiding harm to employee health.

[0029] like Figure 2-3 As shown, the loading component 100 in this embodiment includes a loading bracket 110, a loading transmission line 120, a loading horizontal moving member 130, a loading vertical moving member 140 and a first electromagnetic suction member 150. The feeding end of the loading transmission line 120 is arranged close to the loading bracket 110, and the discharging end of the loading transmission line 120 extends to a position close to the first flipping component 200. The loading horizontal moving member 130 is installed on the top of the loading bracket 110. The output end of the loading horizontal moving member 130 is connected to the loading vertical moving member 140 to drive the loading vertical moving member 140 to move close to or away from the feeding end of the loading transmission line 120. The output end of the loading vertical moving member 140 is connected to the first electromagnetic suction member 150 to drive the first electromagnetic suction member 150 to move in the vertical direction. The first electromagnetic suction member 150 is magnetic when powered on and non-magnetic when powered off.

[0030] Among them, the loading transmission line 120 can adopt a roller conveyor line, the purpose of which is to keep the loading position away from the subsequent decontamination process. The PCB boards to be cleaned can be stacked on a pallet, and the pallet can be moved to the bottom of the loading bracket 110 by a forklift. The PCB boards are attracted by the first electromagnetic suction component 150, and the PCB boards are continuously moved to the loading transmission line 120 under the drive of the loading horizontal moving component 130 and the loading vertical moving component 140. The second electromagnetic suction component 240 is an electromagnetic plate.

[0031] In one embodiment, the horizontal loading member 130 can be implemented by a motor screw structure, while the vertical loading member 140 can be implemented by a cylinder with four guide pillars. A pneumatic stop structure 121 can also be provided on the roller conveyor line to limit the position of the PCB board thereon.

[0032] like Figure 3-4As shown, the first flipping assembly 200 in this embodiment includes a first support frame 210, a flip lifting member 220, a rotating member 230, and a second electromagnetic suction member 240. The flip lifting member 220 is slidingly connected to the first support frame 210 in the vertical direction, and the second electromagnetic suction member 240 is rotationally connected to the flip lifting member 220 along the horizontal axis direction. The rotating member 230 is installed on the flip lifting member 220, and the output end of the rotating member 230 is connected to the second electromagnetic suction member 240 to drive the second electromagnetic suction member 240 to rotate. The second electromagnetic suction member 240 is magnetic when powered on and non-magnetic when powered off. The discharge end of the loading transmission line 120 extends to a position below the second electromagnetic suction member.

[0033] In one embodiment, the tilting and lifting member 220 includes a lifting frame 221 and a tilting cylinder 222. The lifting frame 221 is vertically slidably connected to the first support frame 210. The tilting cylinder 222 is fixedly mounted on the first support frame 210. The output end of the tilting cylinder 222 is connected to the lifting frame 221 to drive the lifting frame 221 to slide. The second electromagnetic suction member 240 is an electromagnetic plate. It is understood that the rotating member 230 can be implemented using a motor.

[0034] like Figure 5 As shown, in this embodiment, the PCB chemical decontamination equipment also includes two inlet and outlet pipes 310 installed on the side walls of the cleaning tank 300, and valves 320 installed on the two inlet and outlet pipes 310 to facilitate the replacement of acid or alkali solution in the cleaning tank 300.

[0035] like Figure 6 As shown, the cleaning component 400 in this embodiment includes a cleaning box 410, a cleaning lifting member 420, a cleaning cylinder 430 and a plurality of spray heads 440. The top of the cleaning box 410 is open, the cleaning lifting member 420 is located in the cleaning box 410 and is slidably connected to the cleaning box 410 in the vertical direction. The cleaning lifting member 420 is a C-shaped structure with the opening facing upward. A card slot 421 for fixing a PCB board in a vertical state is provided at the top of the horizontal part of the cleaning lifting member 420. The cleaning cylinder 430 is installed on the cleaning box 410, and the output end of the cleaning cylinder 430 is connected to the cleaning lifting member 420 for driving the cleaning lifting member 420 to slide. A plurality of spray heads 440 are respectively installed on both sides of the cleaning box 410 and are arranged to point to the front and back sides of the PCB board located in the cleaning box 410.

[0036] The cleaning lift 420 drives the PCB mounted thereon to move back and forth vertically, facilitating the rinsing of chemicals (acid and alkali) and stains from the PCB. A drain pipe 411 is connected to the bottom of the cleaning tank 410 to facilitate the drainage of waste liquid from the cleaning tank 410.

[0037] like Figure 7As shown, the drying component 500 in this embodiment includes an oven 510, a slide 520, a positioning frame 530, a transverse cylinder 540 and a hot air blower 550. The slide 520 is partially located in the oven 510. The top of the positioning frame 530 is open and recessed downward to form a positioning cavity for placing a PCB board in a vertical state. The positioning frame 530 is slidably connected to the top of the slide 520. The transverse cylinder 540 is installed on the slide 520. The output end of the transverse cylinder 540 is connected to the positioning frame 530 to drive the positioning frame 530 in and out of the oven 510. A hot air blower 550 is installed on the inner top wall of the oven 510.

[0038] It is understandable that ventilation grooves are provided on both sides of the positioning frame 530 to facilitate gas flow, and rollers are also provided on the inner wall of the positioning frame 530 to facilitate the entry and exit of the PCB board.

[0039] like Figure 8-9 As shown, the second flip assembly 600 in this embodiment includes a second support frame 610, a rotating frame 620, and a lifting member 630. The bottom of the rotating frame 620 is hinged to the second support frame 610, the bottom of the lifting member 630 is hinged to the second support frame 610, and the top of the lifting member 630 is hinged to the rotating frame 620 to drive the rotating frame 620 to rotate. A retaining groove 621 is formed at the bottom of one side of the rotating frame 620 for fixing a PCB in a vertical position. It is understood that the lifting member 630 can be implemented using a cylinder.

[0040] In one embodiment, the rotating frame 620 is arranged on a side away from the retaining groove 621 close to the feed end of the blanking assembly 800, and the length of the rotating frame 620 along the direction perpendicular to its rotation is set to be smaller than the length of the PCB board, so that when the rotating frame 620 rotates to a horizontal position, the PCB board portion thereon overlaps the feed end of the blanking assembly 800.

[0041] In one embodiment, the second flip assembly 600 further includes a centering positioning member 640, which includes two side plates 641 disposed on either side of the rotating frame 620 and two driving members 642. The two side plates 641 are rotatably connected to the rotating frame 620 in a direction perpendicular to the rotation of the rotating frame 620. The two driving members 642 are mounted on the rotating frame 620 and respectively connected to the two side plates 641 to drive the two side plates 641 to rotate so as to adjust the distance between the two side plates 641. It is understood that the driving member 642 can be implemented by a motor.

[0042] like Figure 10As shown, the material transfer robot 700 in this embodiment includes a robot body 710, two clamps 720 and a bidirectional cylinder 730. The execution end of the robot body 710 is connected to the two clamps 720 via the bidirectional cylinder 730. The bidirectional cylinder 730 is used to drive the two clamps 720 to move relative to or away from each other.

[0043] The unloading assembly 800 in this embodiment includes an unloading rack 820, an unloading support, an unloading transmission line 810, an unloading horizontal moving member, an unloading vertical moving member, and a third electromagnetic suction member. It is understood that the structure of the unloading assembly 800 is the same as that of the loading assembly 100, and no further explanation will be given here.

[0044] Compared with the existing technology: stacked PCB boards to be cleaned can be placed on the loading assembly 100, which transports the horizontally placed PCB boards to the first flipping assembly 200. The first flipping assembly 200 flips the PCB boards to a vertical state. The material transfer robot 700 drives the PCB boards it clamps in a vertical state through two cleaning tanks 300 (acid washing and alkaline washing), a cleaning assembly 400 (cleaning chemical reagents) and a drying assembly 500 in sequence. Finally, the second flipping assembly 600 flips the vertical PCB boards to a horizontal state, and finally the PCBs are unloaded through the unloading assembly 800. The entire chemical decontamination process is highly automated, saving labor costs and avoiding harm to employee health.

[0045] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. PCB chemical decontamination equipment, characterized in that: include: Loading assembly, which is used to transport horizontally placed PCB boards; A first flip assembly, which is used to receive the PCB board conveyed by the loading assembly, and the first flip assembly has a first flip end, which is used to flip the PCB board to a vertical state; Two cleaning tanks, one of which is filled with acid and the other is filled with alkali; a cleaning assembly having a cleaning end; A drying component having a drying end; A second flip assembly having a second flip end for flipping the PCB to a horizontal state; A material transfer robot having a clamping end for clamping a PCB in a vertical position and driving the clamped PCB to move in sequence to the first flip assembly, two cleaning tanks, a cleaning assembly, a drying assembly, and the second flip assembly; The blanking assembly has a feeding end for connecting with the horizontal PCB board on the second flip assembly.

2. The PCB chemical decontamination equipment according to claim 1, characterized in that: The feeding assembly includes a feeding bracket, a feeding transmission line, a feeding horizontal moving part, a feeding vertical moving part and a first electromagnetic suction part. The feeding end of the feeding transmission line is arranged close to the feeding bracket, and the discharging end of the feeding transmission line extends to a position close to the first flipping assembly. The feeding horizontal moving part is installed on the top of the feeding bracket, and the output end of the feeding horizontal moving part is connected to the feeding vertical moving part to drive the feeding vertical moving part to move close to or away from the feeding end of the feeding transmission line. The output end of the feeding vertical moving part is connected to the first electromagnetic suction part to drive the first electromagnetic suction part to move in the vertical direction. The first electromagnetic suction part is magnetic when powered on and non-magnetic when powered off.

3. The PCB chemical decontamination equipment according to claim 2, characterized in that: The first flipping assembly includes a first support frame, a flip lifting member, a rotating member, and a second electromagnetic suction member. The flip lifting member is slidingly connected to the first support frame in a vertical direction, and the second electromagnetic suction member is rotationally connected to the flip lifting member along a horizontal axis direction. The rotating member is installed on the flip lifting member, and the output end of the rotating member is connected to the second electromagnetic suction member to drive the second electromagnetic suction member to rotate. The second electromagnetic suction member is magnetic when powered on and non-magnetic when powered off. The discharge end of the loading transmission line extends to a position below the second electromagnetic suction member.

4. The PCB chemical decontamination equipment according to claim 1, characterized in that: The PCB chemical decontamination equipment further comprises two inlet and outlet drug pipes installed at the side walls of the cleaning tank, and valves installed on the two inlet and outlet drug pipes.

5. The PCB chemical decontamination equipment according to claim 1, characterized in that: The cleaning assembly includes a cleaning box, a cleaning lifting member, a cleaning cylinder and multiple spray heads. The top of the cleaning box is open. The cleaning lifting member is located in the cleaning box and is slidably connected to the cleaning box in the vertical direction. The cleaning lifting member is a C-shaped structure with the opening facing upward. The top of the horizontal part of the cleaning lifting member is provided with a slot for fixing the PCB board in a vertical state. The cleaning cylinder is installed on the cleaning box. The output end of the cleaning cylinder is connected to the cleaning lifting member for driving the cleaning lifting member to slide. The multiple spray heads are respectively installed on both sides of the cleaning box and are arranged to point to the front and back sides of the PCB board located in the cleaning box.

6. The PCB chemical decontamination equipment according to claim 1, characterized in that: The drying component includes an oven, a slide, a positioning frame, a transverse cylinder and a hot air blower. The slide is partially located in the oven. The top of the positioning frame is open and recessed downward to form a positioning cavity for placing a PCB board in a vertical state. The positioning frame is slidably connected to the top of the slide. The transverse cylinder is installed on the slide. The output end of the transverse cylinder is connected to the positioning frame to drive the positioning frame in and out of the oven. A hot air blower is installed on the inner top wall of the oven.

7. The PCB chemical decontamination equipment according to claim 1, characterized in that: The second flip assembly includes a second support frame, a rotating frame, and a lifting member. The bottom of the rotating frame is hinged to the second support frame, the bottom of the lifting member is hinged to the second support frame, and the top of the lifting member is hinged to the rotating frame to drive the rotating frame to rotate. A retaining groove is formed at the bottom of one side of the rotating frame for fixing a PCB board in a vertical state.

8. The PCB chemical decontamination equipment according to claim 7, characterized in that: The rotating frame is arranged on a side away from the retaining groove and close to the feed end of the blanking assembly. The length of the rotating frame along the direction perpendicular to its rotation is set to be smaller than the length of the PCB board, so that when the rotating frame rotates to a horizontal position, the PCB board portion thereon overlaps the feed end of the blanking assembly.

9. The PCB chemical decontamination equipment according to claim 7, characterized in that: The second flip assembly also includes a centering positioning member, which includes two side plates and two driving members arranged on both sides of the rotating frame. The two side plates are rotatably connected to the rotating frame along a direction perpendicular to the rotation of the rotating frame. The two driving members are installed on the rotating frame and are respectively connected to the two side plates to drive the two side plates to rotate so as to adjust the distance between the two side plates.

10. The PCB chemical decontamination equipment according to claim 1, characterized in that: The material transfer robot includes a robot body, two clamping plates and a bidirectional cylinder. The execution end of the robot body is connected to the two clamping plates via the bidirectional cylinder. The bidirectional cylinder is used to drive the two clamping plates to move relative to or away from each other.

Images