A circuit board desmear apparatus and method
By using a cleaning frame and a lead screw motor to automatically scrape off adhesive residue from the brush barrel, combined with online electrolytic regeneration of the adhesive solution and rapid drying, the problems of decreased brush efficiency and frequent adhesive solution replacement are solved, thus improving the cleaning effect and production efficiency of the circuit board adhesive residue removal equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- RED BOARD JIANGXI CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-05-08
AI Technical Summary
In existing circuit board adhesive residue removal equipment, adhesive residue easily adheres to the brushes, leading to a decrease in removal efficiency. The solvent needs to be periodically electrolyzed for regeneration or replacement, affecting production efficiency and cost.
The system uses a cleaning frame, a first lead screw motor, and a moving plate to automatically scrape off and collect the glue residue on the brush cylinder. Two liquid storage tanks, along with a third lead screw motor, drive the online electrolytic regeneration of the solvent. Combined with an air pump and an air outlet frame, the circuit board is quickly dried.
It effectively avoids the decrease in efficiency of brushes due to glue residue accumulation, realizes online regeneration of the solvent, reduces maintenance costs, ensures the continuity of the production process and the cleaning effect, and improves overall work efficiency.
Smart Images

Figure CN120825873B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of circuit board processing equipment, and more particularly to a circuit board adhesive residue removal device and method. Background Technology
[0002] In the circuit board manufacturing process, removing resin residue is a critical step. Its main purpose is to remove resin residue left on the surface and inside the holes of the circuit board during drilling or other processing. If this residue is not effectively removed, it will directly affect the quality of subsequent metallized holes, and may even lead to defects such as short circuits or open circuits, affecting the performance and reliability of the circuit board.
[0003] Currently, common adhesive residue removal equipment typically involves immersing the circuit board in a solvent to soften the adhesive residue, followed by physical scrubbing of the circuit board surface with rotating brushes to remove residual residue. However, over prolonged use, a large amount of adhesive residue adheres to the brushes, reducing their scrubbing efficiency and affecting the removal effect. Furthermore, the solvent gradually deteriorates over time due to adhesive residue accumulation and changes in its chemical composition, requiring electrolytic regeneration or replacement. This not only increases maintenance costs but also disrupts the production process, reducing overall work efficiency. Summary of the Invention
[0004] In view of this, the present invention provides a circuit board adhesive residue removal device and method, which can overcome the shortcomings of existing adhesive residue removal devices, such as a large amount of adhesive residue adhering to the brush during use, affecting the removal effect, and the need for regular electrolytic regeneration or replacement of the solvent, which reduces the overall work efficiency.
[0005] The technical implementation of this invention is as follows: a circuit board adhesive residue removal device, comprising: a support frame; a rotating frame rotatably connected to the support frame; a mounting frame symmetrically connected to the bottom of the rotating frame; a rotating frame rotatably connected to the mounting frame; a drive motor symmetrically mounted on the side of the rotating frame; a brush cylinder symmetrically rotatably connected to the rotating frame, and the rotation axis of the brush cylinder is connected to the output shaft of the drive motor; a first motor mounted on the side of the mounting frame; a first worm gear connected to the output shaft of the first motor; and a first worm wheel connected to the rotation axis of the rotating frame. A worm gear meshes with a first worm; a cleaning frame is connected to the mounting frame and contacts the brush cylinder; a first lead screw motor is mounted on the cleaning frame; a collection box is symmetrically mounted to the bottom of the cleaning frame by magnetic force and remains connected; a moving plate is slidably connected to the cleaning frame and is threadedly connected to the lead screw of the first lead screw motor; a rotating assembly is mounted on the support frame and is used to drive the rotating frame to rotate; a conveying assembly is mounted on the rotating frame and is used to convey the circuit board; an soaking assembly is mounted on the support frame and is used to soak the circuit board in solvent.
[0006] Optionally, the rotating assembly includes: a second motor mounted on the top of the support frame; a second worm gear connected to the output shaft of the second motor; and a second worm wheel connected to the rotating shaft of the rotating frame, wherein the second worm wheel meshes with the second worm gear.
[0007] Optionally, the conveying assembly includes: a lifting frame symmetrically and slidably connected to a rotating frame; a feeding frame connected to the bottom of the lifting frame; a second lead screw motor symmetrically mounted on the rotating frame, with the lead screw of the second lead screw motor threadedly connected to the lifting frame; rotating rods rotatably connected to the feeding frame at even intervals; rollers evenly and at even intervals connected to the rotating rods; a third motor mounted on the lifting frame; a pulley assembly for transmission between adjacent rotating rods, and for transmission between one rotating rod and the output shaft of the third motor via the pulley assembly; and a conveyor symmetrically mounted on a support frame.
[0008] Optionally, the soaking assembly includes: a fixed plate connected to a support frame; a third lead screw motor mounted on the fixed plate; two liquid storage tanks, both of which are slidably connected to the fixed plate and threadedly connected to the lead screw of the third lead screw motor; an electrolysis mechanism installed inside the liquid storage tanks; a collection frame slidably connected to the fixed plate; a connecting spring, with its two ends connected to the collection frame and the fixed plate respectively; a drain pipe connected to the bottom of the collection frame and kept in communication; and a control valve mounted on the drain pipe.
[0009] Optionally, it also includes a fixing component, which includes: a slide rod symmetrically slidably connected to the feeding frame; a pressure plate connected to one end of the slide rod; a connecting plate connected to the other end of the slide rod; a return spring wrapped around the outside of the slide rod, with its two ends connected to the feeding frame and the connecting plate respectively; a guide rod slidably connected to the rotating frame; a contact frame connected to the bottom of the guide rod, and the contact frame making contact with the connecting plate; and an electric push rod mounted on the rotating frame, with the telescopic rod of the electric push rod connected to the contact frame.
[0010] Optionally, it also includes: an air pump, symmetrically mounted on the rotating frame; a connecting pipe, connected to the air outlet of the air pump and kept in communication; and an air outlet frame, connected to the lower end of the connecting pipe and kept in communication.
[0011] Optionally, it also includes a filter frame placed inside the liquid storage tank and positioned above the electrolysis mechanism.
[0012] This invention also provides a method of using a circuit board adhesive residue removal device, comprising the following steps: First, the adhesive solution is placed into two storage tanks. Then, the right-side lifting frame and discharge frame are driven downward by the second lead screw motor on the right side, aligning the right-side discharge frame with the conveyor. The circuit board is then conveyed backward by the front conveyor to the right-side discharge frame. The right-side discharge frame is then driven downward by the second lead screw motor on the right side, causing the circuit board to move downward into the left-side storage tank, ensuring full contact between the circuit board and the adhesive solution. The right-side discharge frame is then driven upward by the second lead screw motor on the right side to reset, making it higher than the conveyor. The right-side discharge frame then causes the circuit board to move upward away from the left-side storage tank, bringing the top of the circuit board into contact with the lower brush cylinder. Finally, the second motor drives the... The second worm gear rotates, and through the second worm wheel and the rotating frame, it drives the two feeding frames to rotate 180 degrees, thus swapping their positions. Then, the drive motor drives the brush cylinder to rotate, which brushes the surface of the circuit board to remove residual adhesive residue. The first motor then drives the first worm gear to rotate, and through the first worm wheel and the rotating frame, it drives the upper and lower brush cylinders to rotate 180 degrees, swapping their positions so that the new brush cylinder can remove adhesive residue from the next circuit board. The used brush cylinder will come into contact with the cleaning frame. As the brush cylinder rotates, the cleaning frame scrapes off the adhesive residue adhering to the brush cylinder, causing it to fall onto the cleaning frame. Then, the first lead screw motor drives the moving plate to move back and forth left and right at regular intervals, pushing the adhesive residue on the cleaning frame into the collection box.
[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention, through the cooperation of the cleaning frame, the first lead screw motor and the moving plate, can automatically scrape off the glue residue adhering to the brush tube and collect it into the collection box, which can effectively avoid the problem of reduced efficiency caused by glue residue accumulation in traditional brushes, and significantly improve the glue residue removal effect and the continuous working ability of the equipment.
[0014] 2. This invention uses two liquid storage tanks with a third lead screw motor to drive the switching, combined with an electrolysis mechanism, to realize online electrolytic regeneration and alternating use of the sol solution. There is no need to stop the machine to replace the sol solution, which can reduce maintenance costs, ensure the continuity of the production process, and improve overall work efficiency.
[0015] 3. The present invention can clamp the circuit board by linking the pressure plate in the fixing component with the electric push rod, so as to prevent the circuit board from shifting during brushing. At the same time, the air pump and the air outlet frame can quickly dry the residual adhesive on the surface of the circuit board, thus doubly ensuring the stability of adhesive residue removal and the smooth progress of subsequent processes. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a schematic diagram showing the installation of the mounting bracket, rotating frame, drive motor, and brush cylinder of the present invention.
[0018] Figure 3 This is a schematic diagram showing the installation of the first motor, first worm, first worm wheel, and cleaning frame of the present invention.
[0019] Figure 4 This is a schematic diagram showing the installation of the first lead screw motor, the collection box, and the moving plate of the present invention.
[0020] Figure 5 This is a schematic diagram showing the installation of the second motor, the second worm, and the second worm wheel of the present invention.
[0021] Figure 6 This is a schematic diagram showing the installation of the lifting frame, the feeding frame, and the second lead screw motor of the present invention.
[0022] Figure 7 This is a schematic diagram of the installation of the rotating rod, roller, third motor and pulley assembly of the present invention.
[0023] Figure 8 This is a schematic diagram of the installation of the soaking component of the present invention.
[0024] Figure 9 This is a schematic diagram of the specific structure of the third lead screw motor, the collecting frame, and the connecting spring of the present invention.
[0025] Figure 10 This is a schematic diagram of the installation of the drain pipe and control valve of the present invention.
[0026] Figure 11 This is a schematic diagram of the installation of the fixing components, air pump, connecting pipe and air outlet frame of the present invention.
[0027] Figure 12 This is a schematic diagram of the installation of the filter frame of the present invention.
[0028] The components in the attached diagram are labeled as follows: 1-Support frame, 2-Rotating frame, 3-Mounting frame, 4-Rotating frame, 5-Drive motor, 6-Brush cylinder, 7-First motor, 8-First worm gear, 9-First worm wheel, 10-Cleaning frame, 11-First lead screw motor, 12-Collection box, 13-Moving plate, 14-Second motor, 15-Second worm gear, 16-Second worm wheel, 17-Lifting frame, 18-Discharge frame, 19-Second lead screw motor, 20-Rotating rod, 21-Roller 22-Third motor, 23-Pulley assembly, 24-Conveyor, 25-Fixed plate, 26-Third screw motor, 27-Storage tank, 28-Electrolysis mechanism, 29-Collection frame, 30-Connecting spring, 31-Drain pipe, 32-Control valve, 33-Slide rod, 34-Pressure plate, 35-Connecting plate, 36-Reset spring, 37-Guide rod, 38-Contact frame, 39-Electric push rod, 40-Air pump, 41-Connecting pipe, 42-Air outlet frame, 43-Filter frame. Detailed Implementation
[0029] Example: A device and method for removing adhesive residue from circuit boards, such as... Figures 1-10 As shown, the assembly includes a support frame 1, a rotating frame 2, a mounting frame 3, a rotating frame 4, a drive motor 5, brush cylinders 6, a first motor 7, a first worm gear 8, a first worm wheel 9, a cleaning frame 10, a first lead screw motor 11, a collection box 12, a moving plate 13, a rotating assembly, a conveying assembly, and an soaking assembly. The rotating frame 2 is rotatably connected to the upper middle part of the support frame 1. Mounting frames 3 are connected to the left and right sides of the bottom of the rotating frame 2. Rotating frames 4 are rotatably connected to the lower parts of both mounting frames 3. Two drive motors 5 are mounted on opposite sides of each of the two rotating frames 4. Two brush cylinders 6 are rotatably connected to each of the two rotating frames 4, with each brush cylinder 6 corresponding to a drive motor 5. The ends of the rotating shafts of the brush cylinders 6 are connected to the output shafts of the drive motors 5. A first motor 7 is mounted on opposite sides of each of the two mounting frames 3. A first worm gear 8 is connected to the output shaft of the first motor 7. A first worm wheel 9 is connected to the end of the rotating shaft of the rotating frame 4, and the first worm wheel 9 meshes with the first worm gear 8. A cleaning frame 10 is connected to each of the two mounting frames 3, and the cleaning frame 10 is in contact with the brush cylinder 6. A first lead screw motor 11 is installed on each of the two cleaning frames 10. The bottom of each of the two cleaning frames 10 is magnetically attracted to a collection box 12 and kept in communication. A moving plate 13 is slidably connected to each of the two cleaning frames 10, and the upper part of the moving plate 13 is threadedly connected to the lead screw of the first lead screw motor 11. A rotating component for driving the rotating frame 2 to rotate is provided on the support frame 1. A conveying component for conveying the circuit board is provided on the rotating frame 2. An soaking component for soaking the circuit board in sol is provided on the support frame 1.
[0030] like Figure 5As shown, the rotating assembly includes a second motor 14, a second worm 15, and a second worm wheel 16. The second motor 14 is mounted on the top of the support frame 1. The second worm 15 is connected to the output shaft of the second motor 14. The second worm wheel 16 is connected to the upper end of the rotating shaft of the rotating frame 2, and the second worm wheel 16 meshes with the second worm 15.
[0031] like Figures 6-8 As shown, the conveying assembly includes a lifting frame 17, a feeding frame 18, a second lead screw motor 19, a rotating rod 20, a roller 21, a third motor 22, a pulley assembly 23, and a conveyor 24. The lifting frames 17 are symmetrically slidably connected to the rotating frame 2. The bottom of each lifting frame 17 is connected to a feeding frame 18. The lower part of the feeding frame 18 has evenly spaced strip-shaped holes from left to right. The second lead screw motor 19 is symmetrically mounted on the rotating frame 2, and the lead screw of the second lead screw motor 19 is threadedly connected to the upper part of the lifting frame 17. The lower part of the feeding frame 18 is connected to multiple rotating rods 20 at even intervals from front to back. Each rotating rod 20 is connected to multiple rollers 21 at even intervals from left to right. The rollers 21 are located in the slotted holes. The lower part of each of the two feeding frames 18 is equipped with a third motor 22. The two adjacent rotating rods 20 are driven by a pulley assembly 23. The rotating rod 20 at the frontmost side is also driven by the pulley assembly 23 to the output shaft of the third motor 22. The lower right side of the support frame 1 is symmetrically equipped with conveyors 24.
[0032] like Figures 8-10 As shown, the soaking assembly includes a fixed plate 25, a third lead screw motor 26, a liquid storage tank 27, an electrolysis mechanism 28, a collection frame 29, a connecting spring 30, a drain pipe 31, and a control valve 32. The lower part of the support frame 1 is connected to the fixed plate 25, and the third lead screw motor 26 is installed in the middle of the fixed plate 25. Two liquid storage tanks 27 are slidably connected to the top right side of the fixed plate 25, and the lower parts of the two liquid storage tanks 27 are threadedly connected to the lead screw of the third lead screw motor 26. The electrolysis mechanism 28 is installed inside the two liquid storage tanks 27. The collection frame 29 is slidably connected to the top left side of the fixed plate 25, and a connecting spring 30 is connected between the lower part of the collection frame 29 and the fixed plate 25. The bottom right side of the collection frame 29 is connected to the drain pipe 31 and kept in communication. The control valve 32 is installed on the drain pipe 31.
[0033] When the equipment is needed, first install it in the designated position, connecting the front conveyor 24 with the discharge conveyor of the next processing step on the circuit board. This allows the discharge conveyor to transport the circuit board backward onto the front conveyor 24, and the rear conveyor 24 to connect with the feed conveyor of the next processing step on the circuit board. Then, place an appropriate amount of solvent into the two storage tanks 27, and drive the right lifting frame 17 downward via the second lead screw motor 19 on the right. The right lifting frame 17 can drive the right unloading frame 18 downward, aligning the right unloading frame 18 with the conveyor 24. Then, the front conveyor 24... 4. The circuit board is conveyed backward into the right-side feeding frame 18. At this time, the bottom of the circuit board will contact the roller 21. Then, the right-side feeding frame 18 is driven by the second lead screw motor 19 to continue moving downward. The right-side feeding frame 18 can drive the circuit board downward into the left-side liquid storage tank 27, so that the circuit board can fully contact the solvent. Then, the right-side feeding frame 18 is driven upward by the second lead screw motor 19 to reset, so that the right-side feeding frame 18 is higher than the conveyor 24. The right-side feeding frame 18 can drive the circuit board upward away from the left-side liquid storage tank 27, and make the top of the circuit board contact the brush cylinder 6 on the lower side. Then, the second lead screw motor 19 drives the circuit board upward away from the left-side liquid storage tank 27. The machine 14 drives the second worm gear 15 to rotate, which in turn drives the second worm wheel 16 to rotate 180 degrees. The second worm wheel 16 then drives the rotating frame 2 to rotate 180 degrees, which in turn drives the two feeding frames 18 to rotate 180 degrees, thus swapping their positions. Then, the drive motor 5 drives the brush cylinder 6 to rotate, which brushes the surface of the circuit board to remove residual adhesive residue. The remaining adhesive residue on the circuit board surface falls down into the collection frame 29 under gravity for collection. During the cleaning process, the above operation is repeated to transport the next circuit board to another feeding frame 18. The circuit board is moved downwards through another feeding frame 18 and immersed in the solvent. Then, the rotating frame 2 is controlled to rotate 180 degrees again, so that the two feeding frames 18 can be swapped again. At this time, the residual adhesive residue on the surface of the next circuit board can be removed. When the feeding frame 18 containing the processed circuit board descends to be aligned with the conveyor 24, the rotating rod 20 and the roller 21 can be driven to rotate by the third motor 22 and the pulley assembly 23. The roller 21 can convey the circuit board backwards to the rear conveyor 24 through the friction between it and the circuit board. The rear conveyor 24 can then convey the circuit board to the next processing step of the circuit board.Then, the front conveyor 24 can transport a new circuit board into the discharge frame 18. Subsequently, the first motor 7 drives the first worm gear 8 to rotate, which in turn drives the first worm wheel 9 to rotate 180 degrees. The first worm wheel 9 drives the rotating frame 4 to rotate 180 degrees, which in turn drives the upper and lower brush cylinders 6 to rotate 180 degrees, thus exchanging their positions. In this way, the new brush cylinder 6 can be used to remove adhesive residue from the new circuit board. The used brush cylinder 6 will then come into contact with the cleaning frame 10. As the brush cylinder 6 rotates... The cleaning rack 10 scrapes off the adhesive residue adhering to the brush cylinder 6, causing it to fall onto the cleaning rack 10. Then, the first lead screw motor 11 drives the moving plate 13 to move back and forth left and right at regular intervals. The moving plate 13 pushes the adhesive residue on the cleaning rack 10 into the collection box 12. This process is repeated to automatically clean the brush cylinder 6, ensuring the cleaning effect. When the solvent in the left liquid tank 27 is about to expire, the third lead screw motor 26 drives both liquid tanks 27 to move a specified distance to the left. When the solvent in the left liquid tank 27 is about to expire, the two liquid tanks 27 can be moved to the left by a specified distance. When in contact with the collection frame 29, it can push the collection frame 29 to the left, compressing the connecting spring 30. At this time, the two storage tanks 27 are located directly below the two discharge frames 18, so that the subsequent circuit board can enter the right storage tank 27 for solvent immersion when it descends. The solvent residue on the surface of the circuit board where the adhesive residue is being removed will fall down into the left storage tank 27 for collection by gravity. At this time, the electrolysis mechanism 28 in the left storage tank 27 can be energized. Through the action of the electrolysis mechanism 28, the solvent in the storage tank 27 can be processed. The liquid undergoes electrolytic regeneration; similarly, when the sol solution in the right-side storage tank 27 is about to expire, the two storage tanks 27 can be driven to move to the right and reset via the third lead screw motor 26. At this time, the left-side storage tank 27 will disengage from the collection frame 29, and the connecting spring 30 will return to its original state, driving the collection frame 29 to move to the right and reset, allowing the collection frame 29 to collect the sol solution again. When it is necessary to remove the sol solution from the collection frame 29, the control valve 32 can be opened so that the sol solution in the collection frame 29 can be discharged downward through the drain pipe 31, facilitating manual collection in one go.
[0034] like Figure 11As shown, it also includes a fixing assembly, which includes a slide rod 33, a pressure plate 34, a connecting plate 35, a return spring 36, a guide rod 37, a contact frame 38, and an electric push rod 39. Two slide rods 33 are slidably connected to the lower part of each of the two feeding frames 18 on opposite sides. A pressure plate 34 is connected between one end of the two slide rods 33, and the pressure plate 34 is located inside the feeding frame 18. A connecting plate 35 is connected between the other ends of the two slide rods 33. The upper end of the connecting plate 35 is set as an arc surface. A return spring 36 is wound around the outer side of each slide rod 33, and the two ends of the return spring 36 are respectively connected to the feeding frame 18 and the connecting plate 35. A guide rod 37 is slidably connected to the lower right side of the rotating frame 2. A contact frame 38 is connected to the bottom of the guide rod 37. The left and right sides of the contact frame 38 are provided with inclined surfaces, and the inclined surfaces on the contact frame 38 are in contact with the arc surface on the connecting plate 35. An electric push rod 39 is installed on the lower left side of the rotating frame 2, and the telescopic rod of the electric push rod 39 is connected to the contact frame 38.
[0035] When the brush cylinder 6 is removing adhesive residue from the circuit board surface, the contact frame 38 can be driven downward by the electric push rod 39. Since the right-side discharge frame 18 moves the circuit board downward into the liquid storage tank 27 for solvent immersion, it also moves the right-side connecting plate 35 downward a certain distance. Therefore, the contact frame 38 will not contact the right-side connecting plate 35. Instead, the contact frame 38 will press the left-side connecting plate 35 to move to the left. The left-side return spring 36 is compressed, and the left-side connecting plate 35 will then move the left-side slide rod 33 and the left-side pressure plate 34 to the left. The left pressure plate 34 contacts the side of the circuit board. The pressure plate 34 and the feeding frame 18 cooperate to clamp and fix the circuit board, preventing the circuit board from moving due to the friction between it and the brush cylinder 6, thus ensuring the cleaning effect of the brush cylinder 6. After the cleaning work is completed, the contact frame 38 can be driven to move upward and reset by the electric push rod 39. The contact frame 38 will disengage from the left connecting plate 35. At this time, the left reset spring 36 will return to its original state, driving the left connecting plate 35, the left slide rod 33 and the left pressure plate 34 to move to the right and reset, so that the left pressure plate 34 releases the circuit board.
[0036] like Figure 11 As shown, it also includes an air pump 40, a connecting pipe 41, and an air outlet frame 42. Air pumps 40 are installed on the front left and rear right sides of the lower part of the rotating frame 2. The air outlets of the two air pumps 40 are connected to the connecting pipes 41 and kept in communication. The lower ends of the two connecting pipes 41 are connected to the air outlet frame 42 and kept in communication. When the brush cylinder 6 removes adhesive residue from the surface of the circuit board, air can be drawn by the air pump 40 and a large amount of air can be delivered to the air outlet frame 42 through the connecting pipes 41 so that the air outlet frame 42 can blow air toward the circuit board so that the residual adhesive liquid on the surface of the circuit board can be quickly drained.
[0037] like Figure 12As shown, it also includes a filter frame 43. The filter frame 43 is placed on the upper inner side of both liquid storage tanks 27, and the filter frame 43 is located above the electrolysis mechanism 28. The filter frame 43 can filter the sol solution in the liquid storage tank 27 to prevent impurities in the sol solution from falling into the electrolysis mechanism 28, ensuring that the electrolysis mechanism 28 can operate normally. When there are too many impurities remaining on the filter frame 43, the filter frame 43 can be directly removed from the liquid storage tank 27 for cleaning, and then the filter frame 43 can be put back in its original position.
Claims
1. A circuit board adhesive residue removal device, comprising: a support frame (1); characterized in that, It also includes: a rotating frame (2), rotatably connected to the support frame (1); a mounting frame (3), symmetrically connected to the bottom of the rotating frame (2); a rotating frame (4), rotatably connected to the mounting frame (3); a drive motor (5), symmetrically mounted on the side of the rotating frame (4); a brush cylinder (6), symmetrically rotatably connected to the rotating frame (4), and the rotation axis of the brush cylinder (6) is connected to the output shaft of the drive motor (5); a first motor (7), mounted on the side of the mounting frame (3); a first worm (8), connected to the output shaft of the first motor (7); a first worm wheel (9), connected to the rotation axis of the rotating frame (4), and the first worm wheel (9) meshes with the first worm (8); cleaning A frame (10) is connected to a mounting frame (3), and the cleaning frame (10) is in contact with a brush cylinder (6); a first lead screw motor (11) is installed on the cleaning frame (10); a collection box (12) is magnetically and symmetrically installed at the bottom of the cleaning frame (10) and kept in communication; a moving plate (13) is slidably connected to the cleaning frame (10), and the moving plate (13) is threadedly connected to the lead screw of the first lead screw motor (11); a rotating assembly is set on a support frame (1) for driving the rotating frame (2) to rotate; a conveying assembly is set on the rotating frame (2) for conveying the circuit board; and an immersion assembly is set on the support frame (1) for immersing the circuit board in solvent.
2. The circuit board adhesive residue removal equipment according to claim 1, characterized in that, The rotating assembly includes: a second motor (14) mounted on the top of the support frame (1); a second worm (15) connected to the output shaft of the second motor (14); and a second worm wheel (16) connected to the rotating shaft of the rotating frame (2), and the second worm wheel (16) meshes with the second worm (15).
3. The circuit board adhesive residue removal device according to claim 1, characterized in that, The conveying assembly includes: a lifting frame (17), symmetrically slidably connected to the rotating frame (2); a feeding frame (18), connected to the bottom of the lifting frame (17); a second lead screw motor (19), symmetrically installed on the rotating frame (2), and the lead screw of the second lead screw motor (19) is threadedly connected to the lifting frame (17); rotating rods (20), symmetrically rotatably connected to the feeding frame (18); rollers (21), symmetrically connected to the rotating rods (20); a third motor (22), installed on the lifting frame (17); a pulley assembly (23), through which two adjacent rotating rods (20) are driven, and one of the rotating rods (20) is also driven to the output shaft of the third motor (22) through the pulley assembly (23); and a conveyor (24), symmetrically installed on the support frame (1).
4. The circuit board adhesive residue removal equipment according to claim 1, characterized in that, The soaking assembly includes: a fixed plate (25) connected to the support frame (1); a third lead screw motor (26) installed on the fixed plate (25); two liquid storage tanks (27), both of which are slidably connected to the fixed plate (25) and the lead screw of the third lead screw motor (26) is threadedly connected; an electrolysis mechanism (28) installed inside the liquid storage tank (27); a collection frame (29) slidably connected to the fixed plate (25); a connecting spring (30) with its two ends connected to the collection frame (29) and the fixed plate (25) respectively; a drain pipe (31) connected to the bottom of the collection frame (29) and kept in communication; and a control valve (32) installed on the drain pipe (31).
5. The circuit board adhesive residue removal equipment according to claim 3, characterized in that, It also includes a fixing component, which includes: a slide rod (33), which is symmetrically slidably connected to the feeding frame (18); a pressure plate (34), which is connected to one end of the slide rod (33); a connecting plate (35), which is connected to the other end of the slide rod (33); a return spring (36), which is wrapped around the outside of the slide rod (33), and the two ends of the return spring (36) are respectively connected to the feeding frame (18) and the connecting plate (35); a guide rod (37), which is slidably connected to the rotating frame (2); a contact frame (38), which is connected to the bottom of the guide rod (37), and the contact frame (38) is in contact with the connecting plate (35); and an electric push rod (39), which is installed on the rotating frame (2), and the telescopic rod of the electric push rod (39) is connected to the contact frame (38).
6. The circuit board adhesive residue removal device according to claim 1, characterized in that, It also includes: an air pump (40), symmetrically mounted on the rotating frame (2); a connecting pipe (41), connected to the air outlet of the air pump (40) and kept in communication; and an air outlet frame (42), connected to the lower end of the connecting pipe (41) and kept in communication.
7. The circuit board adhesive residue removal device according to claim 4, characterized in that, It also includes a filter frame (43), which is placed inside the liquid storage tank (27) and is located above the electrolysis mechanism (28).
8. The method of using the circuit board adhesive residue removal equipment according to claim 4, characterized in that, The process includes the following steps: First, the solvent solution is placed into two storage tanks (27). Then, the right-side lifting frame (17) and the discharge frame (18) are driven downward by the right-side second screw motor (19) so that the right-side discharge frame (18) is aligned with the conveyor (24). Then, the circuit board is conveyed backward to the right-side discharge frame (18) by the front conveyor (24). Then, the right-side discharge frame (18) is driven downward by the right-side second screw motor (19). The right-side discharge frame (18) can drive the circuit board. The circuit board moves downwards into the left-side storage tank (27), ensuring full contact with the solvent. Then, the right-side discharge frame (18) is driven upwards by the right-side second screw motor (19) to reset, making it higher than the conveyor (24). The right-side discharge frame (18) can then move the circuit board upwards away from the left-side storage tank (27), bringing the top of the circuit board into contact with the lower brush cylinder (6). Then, the second worm gear (15) is driven to rotate by the second motor (14). The second worm gear (15) passes through... The second worm gear (16) and the rotating frame (2) can drive the two feeding frames (18) to rotate 180 degrees, so that the two feeding frames (18) exchange positions. Then, the drive motor (5) drives the brush cylinder (6) to rotate. The brush cylinder (6) can brush the surface of the circuit board to remove the residual glue residue on the surface of the circuit board. Then, the first motor (7) drives the first worm (8) to rotate. The first worm (8) drives the upper and lower brush cylinders (6) to rotate 180 degrees through the first worm gear (9) and the rotating frame (4), so that the upper and lower brush cylinders (6) rotate 180 degrees. The brush cylinder (6) is rotated so that the new brush cylinder (6) can remove the glue residue from the next circuit board. The used brush cylinder (6) will come into contact with the cleaning frame (10). As the brush cylinder (6) rotates, the cleaning frame (10) can scrape off the glue residue adhering to the brush cylinder (6) and make the glue residue fall onto the cleaning frame (10). Then, the first lead screw motor (11) drives the moving plate (13) to move back and forth left and right at regular intervals. The moving plate (13) can push the glue residue on the cleaning frame (10) to fall into the collection box (12).
Citation Information
Patent Citations
Glue residue removing equipment for circuit board production
CN118234146A
Automatic degumming device and degumming method for circuit board production
CN119421332A