Fixed-point track plasma cleaning device

Abstract

The utility model provides a fixed-point track plasma cleaning device which comprises a conveying mechanism, a plasma spray gun, a movement module, a conveying driving device, a width adjusting assembly, a width adjusting driving device and two chain conveying assemblies. The conveying driving device can drive the two chain conveying assemblies to execute conveying actions, each chain conveying assembly comprises a conveying chain, and a plurality of convex columns are arranged on each conveying chain; the width adjusting assembly comprises a connecting rotating shaft, two fixing seats and two width adjusting lead screws, the width adjusting lead screws are connected with the fixing seats and one of the mounting frames respectively, the other mounting frame is movably connected between the two ends of the width adjusting lead screws, the connecting rotating shaft is arranged between the two width adjusting lead screws, and the width adjusting driving device can drive one of the width adjusting lead screws to rotate. The other width adjusting lead screw is driven to rotate through the connecting rotating shaft, so that the distance between the two mounting frames is adjusted; the device can be compatible with various flexible circuit boards with different specifications and is not easy to damage.

Description

Technical Field

[0001] The utility model relates to the field of plasma cleaning, in particular to a fixed-point trajectory plasma cleaning device. Background Art

[0002] During the production process of flexible circuit boards, various materials such as metals and glass often need to be combined, which results in some contaminants on the surface of the flexible circuit boards. These contaminants can cause problems such as short circuits, open circuits, and poor welding. Therefore, a plasma machine is needed for cleaning to remove particles, grease, impurities and other contaminants on the surface of the flexible circuit boards.

[0003] The existing patent document with publication number CN214683283U discloses a novel online track direct plasma treatment equipment, including a belt conveyor mechanism, a plasma spray gun and a motion module, wherein the belt conveyor mechanism is used to convey a flexible circuit board, the plasma spray gun is arranged above the flexible circuit board, and the motion module can drive the plasma spray gun to move in three directions of X / Y / Z. The existing belt conveyor mechanism conveys the flexible circuit board through the belt, and since the contact surface between the belt and the flexible circuit board is large and the belt surface is prone to accumulation of pollutants such as oil and dust, the flexible circuit board is easily contaminated and damaged during the conveying process. Utility Model Content

[0004] The utility model aims to provide a fixed-point track plasma cleaning device which is compatible with a variety of different specifications and is not easy to pollute and damage a flexible circuit board.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a fixed-point trajectory plasma cleaning device, including a conveying mechanism, a plasma spray gun and a motion module. The plasma spray gun is arranged on the motion module and above the conveying mechanism. The motion module can drive the plasma spray gun to move along the X / Y / Z direction. The conveying mechanism includes a conveying drive device, a width adjustment component, a width adjustment drive device and two chain conveying components arranged at relative intervals. The conveying drive device can simultaneously drive the two chain conveying components to perform conveying actions. The width adjustment drive device adjusts the spacing between the two chain conveying components through the width adjustment component; the chain conveying component includes a mounting frame, a conveying chain, a driving sprocket and a driven sprocket. The driving sprocket and the driven sprocket are both arranged on the mounting frame. The conveying chain is wound around the driving sprocket and the driven sprocket. The conveying drive device It is connected to the driving sprocket to drive the driving sprocket and the conveying chain to rotate. A plurality of convex columns for supporting the workpiece are arranged on the conveying chain, and the convex columns are in line contact with the workpiece; the width adjustment component includes a connecting shaft, two fixed seats and two width adjustment screws, the two width adjustment screws are respectively arranged at the two ends of the mounting frame, and the width adjustment screws are respectively connected to the fixed seat and one of the mounting frames, the other mounting frame is connected between the two ends of the width adjustment screw and can move along the axial direction of the width adjustment screw, the connecting shaft is arranged between the two width adjustment screws, and the two ends of the connecting shaft are provided with a first rotating wheel, the two width adjustment screws are provided with a second rotating wheel, the first rotating wheel is connected to the corresponding second rotating wheel, the width adjustment drive device can drive one of the width adjustment screws to rotate, and then drive the other width adjustment screw to rotate through the connecting shaft, so as to adjust the distance between the two mounting frames.

[0006] It can be seen from the above scheme that by setting the plasma spray gun to be able to move freely along the X / Y / Z direction, its motion trajectory can be set according to different product requirements, so as to realize fixed-point trajectory plasma cleaning of the workpiece; by setting a width adjustment component and a width adjustment drive device, the spacing between the two chain conveyor components can be adjusted to be compatible with workpieces of various widths; by setting a connecting shaft and two width adjustment screws, when the width adjustment drive device drives one width adjustment screw to rotate, it can drive the other width adjustment screw to rotate, so that both ends of the chain conveyor component can move at the same time, avoiding the chain conveyor component from tilting and affecting the normal transportation of the workpiece; by setting a convex column on the conveying chain for supporting the workpiece, on the one hand, it is beneficial to reduce the contact area between the conveying chain and the workpiece to prevent damage to the workpiece during transportation, and on the other hand, since there must be a gap between two adjacent convex columns, pollutants such as oil and dust can fall from between the two convex columns to avoid accumulation on the convex columns, which is beneficial to prevent contamination of the workpiece. The workpiece of the utility model is preferably a flexible circuit board.

[0007] A further solution is that an L-shaped protrusion is provided on one side of the mounting frame, the L-shaped protrusion extends along the extension direction of the mounting frame, the conveying chain is arranged on the L-shaped protrusion, and the boss is arranged on the outside of the L-shaped protrusion.

[0008] A further solution is that a limiting portion is also provided on the mounting frame, and the limiting portion and the L-shaped protrusion are arranged at corresponding intervals above and below, and the conveying chain includes multiple chain links and multiple pins, and the pins are connected between two adjacent chain links. The chain link is arranged between the limiting portion and the L-shaped protrusion, and the middle part of the pin is supported on the L-shaped protrusion, and the limiting portion extends into the chain link and is adjacent to the middle part of the pin.

[0009] A further solution is that two mounting seats are arranged at the lower part of the mounting frame, a mounting hole is opened in the mounting seat, a spiral structure cooperating with the width adjustment screw is arranged in the mounting hole, and the width adjustment screw is arranged in the mounting hole and connected with the spiral structure.

[0010] A further solution is that the conveying mechanism further includes two protective covers, which are respectively arranged on one side of the two mounting frames, and the connecting shaft, the first rotating wheel and the second rotating wheel are all arranged in one of the protective covers.

[0011] A further solution is that the fixed-point trajectory plasma cleaning device also includes a blocking mechanism, which is arranged at one end of the conveying mechanism and between the two chain conveying assemblies.

[0012] A further solution is that the motion module includes a longitudinal translation mechanism, a transverse translation mechanism and a vertical translation mechanism, the longitudinal translation mechanism includes a longitudinal guide rail and a longitudinal translation module, the longitudinal guide rail and the longitudinal translation module are respectively arranged on both sides of the conveying mechanism, the longitudinal guide rail is arranged parallel to the conveying direction of the conveying mechanism, the two ends of the transverse translation mechanism are respectively arranged on the longitudinal guide rail and the longitudinal translation module, the transverse translation mechanism can move along the extension direction of the longitudinal guide rail, the vertical translation mechanism is arranged between the two ends of the transverse translation mechanism, the vertical translation mechanism can move along the extension direction of the vertical longitudinal guide rail, the plasma spray gun is arranged on the vertical translation mechanism and can move along the Z direction, and the gun head of the plasma spray gun is arranged downward.

[0013] A further solution is that the fixed-point trajectory plasma cleaning device also includes a frame and a plasma generator, the frame is provided with a workbench and a receiving chamber, the receiving chamber is arranged below the workbench, the plasma generator is arranged in the receiving chamber, and the plasma generator is connected to the plasma spray gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of an embodiment of the utility model.

[0015] Figure 2 It is a structural diagram of the conveying mechanism and the motion module in the utility model.

[0016] Figure 3 It is a structural diagram of the conveying mechanism in the utility model.

[0017] Figure 4It is an exploded view of the mounting frame and the conveying chain in the utility model.

[0018] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0019] Figure 6 yes Figure 4 Enlarged view of point B in the middle.

[0020] Figure 7 It is a cross-sectional view of the mounting frame and the conveying chain in the utility model.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0022] See also Figures 1 to 4 The fixed-point trajectory plasma cleaning device provided in this embodiment includes a frame 1, a conveying mechanism 2, a plasma spray gun (not shown in the figure), a plasma generator (not shown in the figure) and a motion module 3.

[0023] A workbench 11 and a receiving chamber are provided on the frame 1. The receiving chamber is provided below the workbench 11. A plasma generator is provided in the receiving chamber, and the plasma generator is connected to a plasma spray gun. The conveying mechanism 2 and the motion module 3 are both provided on the workbench 11. The plasma spray gun is provided on the motion module 3 and above the conveying mechanism 2. For the convenience of explanation, the conveying direction of the conveying mechanism 2 is set to the Y direction, the direction perpendicular to the conveying direction in the horizontal plane is set to the X direction, and the vertical direction is set to the Z direction. The motion module 3 can drive the plasma spray gun to move along the X / Y / Z direction to set a fixed-point trajectory according to the requirements of the flexible circuit board.

[0024] The conveying mechanism 2 includes a conveying drive device 21, a width adjustment component 22, a width adjustment drive device 23 and two chain conveying components 24 arranged relatively at a distance. The conveying drive device 21 can simultaneously drive the two chain conveying components 24 to perform synchronous conveying actions. The width adjustment drive device 23 adjusts the spacing between the two chain conveying components 24 through the width adjustment component 22 to be compatible with flexible circuit boards of different widths.

[0025] The chain conveyor assembly 24 includes a mounting frame, a conveyor chain 243, a driving sprocket 244 and four driven sprockets 245. The mounting frame extends along the Y direction, and the driving sprocket 244 and the four driven sprockets 245 are all arranged on the same side of the mounting frame, wherein two driven sprockets 245 are respectively arranged at both ends of the extending direction of the mounting frame, the driving sprocket 244 is arranged between the two ends of the mounting frame, and the other two driven sprockets 245 are respectively arranged on both sides of the driving sprocket 244 and are arranged close to the driving sprocket 244. The conveyor chain 243 is wound around the driving sprocket 244 and the four driven sprockets 245, and the conveying drive device 21 is connected to the driving sprocket 244 to drive the conveyor chain 243 to rotate. A plurality of bosses 2431 for supporting the workpiece 5 are arranged on the conveyor chain 243. The bosses 2431 are set as cylindrical structures so that the bosses 2431 can make linear contact with the workpiece 5, which is beneficial to reducing the contact area between the conveyor chain 243 and the workpiece 5 and reducing the accumulation of oil mist, dust, etc. on the bosses 2431, thereby avoiding contamination of the flexible circuit board, reducing problems such as short circuit, open circuit or poor welding caused by pollutants, and is beneficial to improving the quality of the flexible circuit board.

[0026] The width adjustment assembly 22 includes a connecting shaft 221 and two width adjustment screws 222. The two width adjustment screws 222 are respectively arranged at two ends of the mounting frame, and the width adjustment screws 222 are respectively connected to the two mounting frames.

[0027] For the convenience of explanation, the two mounting frames are named as the first mounting frame 241 and the second mounting frame 242 respectively. In this embodiment, the first mounting frame 241 is fixedly arranged on the workbench 11, and the second mounting frame 242 is movably arranged on the workbench 11. The workbench 11 is provided with two fixing seats 246 on the side of the second mounting frame 242 away from the first mounting frame 241. The first end of the width adjustment screw 222 is rotatably connected with the first mounting frame 241, and the second end of the width adjustment screw 222 is rotatably connected with the corresponding fixing seat 246. The second mounting frame 242 is connected between the two ends of the width adjustment screw 222 and can move along the axial direction of the width adjustment screw 222. Specifically: two mounting seats 2423 are arranged at the lower part of the second mounting frame 242, and a mounting hole is opened in the mounting seat 2423, and a spiral structure is arranged in the mounting hole. The width adjustment screw 222 is arranged in the mounting hole and is connected with the spiral structure, so that when the width adjustment screw 222 rotates around its axis, the second mounting frame 242 can be driven to move along the axial direction of the width adjustment screw 222.

[0028] The connecting shaft 221 is arranged between the respective ends of the two width adjusting screws 222, and a first rotating wheel 2211 is arranged at both ends of the connecting shaft 221, and a second rotating wheel 2221 is arranged on one end of each of the two width adjusting screws 222. The first rotating wheel 2211 is connected to the corresponding second rotating wheel 2221, so that one width adjusting screw 222 can drive the other width adjusting screw 222 to rotate through the connecting shaft 221.

[0029] In this embodiment, since the two first rotating wheels 2211 are both arranged between the two second rotating wheels 2221, when the first rotating wheel 2211 and the second rotating wheel 2221 rotate, they will drive the two width-adjusting screws 222 to rotate in opposite directions. Therefore, the rotation directions of the spiral structures of the mounting holes in the two mounting seats 2423 are arranged in opposite directions, so that the two width-adjusting screws 222 can drive the second mounting frame 242 to move in the same direction, so that the two ends of the second mounting frame 242 are simultaneously close to or away from the first mounting frame 241, thereby adjusting the distance between the first mounting frame 241 and the second mounting frame 242.

[0030] Combination Figures 4 to 7 The structures of the first mounting frame 241 and the second mounting frame 242 are similar, and this embodiment is described by taking the second mounting frame 242 as an example.

[0031] Two L-shaped protrusions 2421 are arranged on one side of the second mounting frame 242 . The two L-shaped protrusions 2421 are arranged in an up-and-down arrangement. The conveying chain 243 is wound around the two L-shaped protrusions 2421 , and the protrusion 2431 is arranged on the outside of the L-shaped protrusions 2421 .

[0032] Limiting portions 2422 are provided on both the upper and lower sides of the second mounting frame 242. The two limiting portions 2422 are spaced apart corresponding to the two L-shaped protrusions 2421, specifically: the upper limiting portion 2422 is provided above the upper L-shaped protrusion 2421, and the lower limiting portion 2422 is provided below the lower L-shaped protrusion 2421.

[0033] The conveying chain 243 includes multiple links 2432 and multiple pins 2433. The pins 2433 are connected between two adjacent links 2432. The link 2432 is arranged between the limiting portion 2422 and the L-shaped protrusion 2421, and the middle part of the pin 2433 is supported on the L-shaped protrusion 2421. The limiting portion 2422 extends into the link 2432 and is adjacent to the middle part of the pin 2433 to limit the accidental separation of the conveying chain 243 and the second mounting frame 242.

[0034] Combination Figure 2 and Figure 3 A conveying drive shaft 25 is arranged between the two chain conveying assemblies 24 , and both ends of the conveying drive shaft 25 are respectively connected to two active sprockets 244 . The conveying drive device 21 is connected to the conveying drive shaft 25 through a first chain transmission mechanism to drive the conveying drive shaft 25 to rotate.

[0035] The width adjustment driving device 23 and the conveying driving device 21 are both arranged on the same side of the first mounting frame 241 . The width adjustment driving device 23 is connected to the width adjustment screw 222 through a second chain transmission mechanism to drive the width adjustment screw 222 to rotate.

[0036] The conveying mechanism 2 also includes a first protective cover 26 and a second protective cover 27. The first protective cover 26 is arranged on one side of the first mounting frame 241, and the first chain transmission mechanism and the second chain transmission mechanism are both arranged in the first protective cover 26; the second protective cover 27 is arranged on one side of the second mounting frame 242, and the connecting shaft 221, the first rotating wheel 2211 and the second rotating wheel 2221 are all arranged in the second protective cover 27.

[0037] exist Figure 2 In the embodiment, the fixed-point trajectory plasma cleaning device further includes a blocking mechanism 4, which is arranged at one end of the conveying mechanism 2 and between the two chain conveying assemblies 24. The blocking mechanism 4 is provided with a roller that can move up and down. When the roller is in the upper position, it can be used to block the workpiece 5 from continuing to be conveyed along the Y direction to prevent the workpiece 5 from accidentally detaching from the conveying mechanism 2, and plays a role in positioning in the Y direction; when the roller is in the lower position, the workpiece 5 can pass over it, which is convenient for moving to the next process. The blocking mechanism 4 is a purchased part, and its detailed structure is not repeated here.

[0038] exist Figure 2 In the embodiment, the motion module 3 includes a longitudinal translation mechanism 31, a transverse translation mechanism 32 and a vertical translation mechanism 33. The longitudinal translation mechanism 31 includes a longitudinal guide rail 311 and a longitudinal translation module 312. The longitudinal guide rail 311 and the longitudinal translation module 312 are respectively arranged on both sides of the conveying mechanism 2. The longitudinal guide rail 311 is arranged parallel to the conveying direction of the conveying mechanism 2, that is, the longitudinal guide rail 311 extends along the Y direction; the two ends of the transverse translation mechanism 32 are respectively arranged on the longitudinal guide rail 311 and the longitudinal translation module 312, and the transverse translation mechanism 32 can move along the extension direction of the longitudinal guide rail 311, that is, move along the Y direction; the vertical translation mechanism 33 is arranged between the two ends of the transverse translation mechanism 32, and the vertical translation mechanism 33 can move along the extension direction of the vertical longitudinal guide rail 311, that is, move along the X direction; the plasma spray gun is arranged on the vertical translation mechanism 33 and can move along the Z direction, and the gun head of the plasma spray gun is arranged downward.

[0039] The plasma spray gun can move freely along the X / Y / Z directions, so that its movement trajectory can be set according to different product requirements, thereby achieving fixed-point trajectory plasma cleaning of the workpiece 5 .

[0040] In summary, it can be seen that by setting the plasma spray gun to be able to move freely along the X / Y / Z directions, its motion trajectory can be set according to different product requirements, thereby realizing fixed-point trajectory plasma cleaning of the workpiece; by setting a width adjustment component and a width adjustment drive device, the spacing between the two chain conveyor components can be adjusted to be compatible with workpieces of various widths and sizes; by setting a connecting shaft and two width adjustment screws, when the width adjustment drive device drives one width adjustment screw to rotate, it can drive the other width adjustment screw to rotate, so that both ends of the chain conveyor component can move at the same time, avoiding the chain conveyor component from tilting and affecting the normal transportation of the workpiece; by setting a convex column on the conveying chain for supporting the workpiece, on the one hand, it is beneficial to reduce the contact area between the conveying chain and the workpiece to prevent damage to the workpiece during transportation, and on the other hand, since there must be a gap between two adjacent convex columns, pollutants such as oil and dust can fall from between the two convex columns to avoid accumulation on the convex columns, which is beneficial to prevent contamination of the workpiece. The workpiece of the utility model is preferably a flexible circuit board.

[0041] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixed-point trajectory plasma cleaning device, comprising a conveying mechanism, a plasma spray gun and a motion module, wherein the plasma spray gun is arranged on the motion module and above the conveying mechanism, and the motion module can drive the plasma spray gun to move along the X / Y / Z direction, characterized in that: The conveying mechanism comprises a conveying drive device, a width adjustment component, a width adjustment drive device and two chain conveying components arranged at a relative interval, wherein the conveying drive device can simultaneously drive the two chain conveying components to perform conveying actions, and the width adjustment drive device adjusts the spacing between the two chain conveying components through the width adjustment component; The chain conveyor assembly comprises a mounting frame, a conveyor chain, a driving sprocket and a driven sprocket, wherein the driving sprocket and the driven sprocket are both arranged on the mounting frame, the conveyor chain is wound around the driving sprocket and the driven sprocket, the conveyor drive device is connected to the driving sprocket to drive the driving sprocket and the conveyor chain to rotate, and a plurality of convex columns for supporting workpieces are arranged on the conveyor chain, and the convex columns are in line contact with the workpiece; The width adjustment component includes a connecting shaft, two fixed seats and two width adjustment screws, the two width adjustment screws are respectively arranged at the two ends of the mounting frame, and the width adjustment screws are respectively connected to the fixed seat and one of the mounting frames, the other mounting frame is connected between the two ends of the width adjustment screw and can move along the axial direction of the width adjustment screw, the connecting shaft is arranged between the two width adjustment screws, and the two ends of the connecting shaft are each provided with a first rotating wheel, the two width adjustment screws are each provided with a second rotating wheel, the first rotating wheel is connected to the corresponding second rotating wheel, the width adjustment drive device can drive one of the width adjustment screws to rotate, and then drive the other width adjustment screw to rotate through the connecting shaft, thereby adjusting the distance between the two mounting frames.

2. The fixed-point trajectory plasma cleaning device according to claim 1, characterized in that: An L-shaped protrusion is arranged on one side of the mounting frame, the L-shaped protrusion extends along the extension direction of the mounting frame, the conveying chain is arranged on the L-shaped protrusion, and the boss is arranged on the outer side of the L-shaped protrusion.

3. The fixed-point trajectory plasma cleaning device according to claim 2, characterized in that: The mounting frame is also provided with a limiting portion, and the limiting portion and the L-shaped protrusion are arranged at a corresponding interval up and down; The conveying chain includes a plurality of chain links and a plurality of pins, wherein the pin is connected between two adjacent chain links, the chain link is arranged between the limiting portion and the L-shaped protrusion, and the middle portion of the pin is supported on the L-shaped protrusion, and the limiting portion extends into the chain link and is adjacent to the middle portion of the pin.

4. The fixed-point trajectory plasma cleaning device according to claim 1, characterized in that: Two mounting seats are arranged at the lower part of the mounting frame, a mounting hole is opened in the mounting seat, a spiral structure is arranged in the mounting hole, and the width adjustment screw is arranged in the mounting hole and is connected with the spiral structure.

5. The fixed-point trajectory plasma cleaning device according to claim 1, characterized in that: The conveying mechanism further comprises two protective covers, which are respectively arranged on one side of each of the two mounting frames, and the connecting shaft, the first rotating wheel and the second rotating wheel are all arranged in one of the protective covers.

6. The fixed-point trajectory plasma cleaning device according to claim 1, characterized in that: The fixed-point trajectory plasma cleaning device also includes a blocking mechanism, which is arranged at one end of the conveying mechanism and between the two chain conveying assemblies.

7. The fixed-point trajectory plasma cleaning device according to claim 1, characterized in that: The motion module includes a longitudinal translation mechanism, a transverse translation mechanism and a vertical translation mechanism. The longitudinal translation mechanism includes a longitudinal guide rail and a longitudinal translation module. The longitudinal guide rail and the longitudinal translation module are respectively arranged on both sides of the conveying mechanism. The longitudinal guide rail is arranged in parallel with the conveying direction of the conveying mechanism. The two ends of the transverse translation mechanism are respectively arranged on the longitudinal guide rail and the longitudinal translation module. The transverse translation mechanism can move along the extension direction of the longitudinal guide rail. The vertical translation mechanism is arranged between the two ends of the transverse translation mechanism. The vertical translation mechanism can move along the extension direction perpendicular to the longitudinal guide rail. The plasma spray gun is arranged on the vertical translation mechanism and can move along the Z direction. The gun head of the plasma spray gun is arranged downward.

8. The fixed-point trajectory plasma cleaning device according to any one of claims 1 to 7, characterized in that: The fixed-point trajectory plasma cleaning device also includes a frame and a plasma generator. The frame is provided with a workbench and a receiving chamber. The receiving chamber is provided below the workbench. The plasma generator is provided in the receiving chamber. The plasma generator is connected to the plasma spray gun.

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