Inclined driving type electroplating device
By adopting a combined structure of toggle plate and cylindrical tooth blocks in the inclined drive electroplating device, the problem of parts being buried during the roller plating process is solved, the parts are fully in contact with the plating solution, and the uniformity and production efficiency of the plating layer are improved.
Patent Information
- Application Number
- CN202510308151.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2025-04-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the rolling process of existing inclined roller plating machines, smaller parts are easily buried in the local voids formed by the accumulation of other parts, resulting in insufficient contact with the plating solution, resulting in uneven coating and low production efficiency.
An inclined drive electroplating device is designed, adopting a combined structure of a toggle plate and a cylindrical tooth block. Through the reciprocating movement of the toggle plate and the extension of the cylindrical tooth block, the parts in the hexagonal drum are agitated to avoid the parts being buried and increase the contact area between the parts and the plating solution.
It effectively avoids the problem of parts being buried, ensures that the parts can be fully in contact with the plating solution, and improves the uniformity and production efficiency of the plating layer.
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Figure CN119877068A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of roller plating machines, and in particular to an inclined driven electroplating device. Background Art
[0002] In the prior art, the inclined drive electroplating device is actually applied as an inclined immersion barrel plating machine, which realizes the electroplating of the parts by making the axial direction of the barrel form an angle of about 40º to 45º with the horizontal plane, and the running direction of the parts is inclined to the horizontal plane. Strictly speaking, barrel plating is called barrel electroplating, which is a kind of electroplating processing method that places a certain number of small parts in a special barrel, deposits various metal or alloy coatings on the surface of the parts in an indirect conductive manner in a rolling state, so as to achieve surface protection, decoration and various functional purposes; However, in the actual operation of the inclined roller plating machine, some parts are easily buried in the accumulated parts during roller plating. This is because during the roller plating process, the parts are constantly tumbling and mixing with the rotation of the roller. Due to the influence of factors such as the shape and size of the parts and the loading capacity, some smaller parts may gradually fall into the local gaps formed by the accumulation of other parts. Once these parts are buried inside, it is difficult for them to fully contact the plating solution like other normally tumbling parts, because roller plating relies on the tumbling of the parts in the plating solution to achieve uniform electroplating, and the parts buried inside cannot effectively receive the scouring of the plating solution and the action of the current, resulting in incomplete roller plating. This incomplete roller plating will make some parts of these parts unable to obtain sufficient coating coverage, resulting in uneven coating quality. In addition, due to the characteristics of the roller shape and structure, its loading capacity is relatively small, and it cannot accommodate a large number of parts for electroplating at one time like a horizontal roller plating machine, resulting in relatively low production efficiency. To solve this problem, we propose a tilt-driven electroplating device. Summary of the invention
[0003] Technical issues solved In view of this, and in view of the deficiencies in the prior art, the present invention provides a tilt-driven electroplating device to solve the problems raised in the above-mentioned background technology.
[0004] Technical Solution To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inclined driven electroplating device, comprising an electroplating tank, a stepper motor is arranged above the electroplating tank, the stepper motor is inclined with reference to the vertical plane of the electroplating tank, a quick disassembly coupling is fixedly connected to the output shaft end of the stepper motor, a hexagonal roller is sleeved on the outside of the quick disassembly coupling away from the stepper motor, a fixing plate is fixedly connected to the outer surface of the quick disassembly coupling away from the stepper motor, and the fixing plate is fixedly connected to the inner wall of the hexagonal roller at one end away from the quick disassembly coupling, and also includes a toggle assembly arranged inside the hexagonal roller; The toggle assembly includes a positioning frame rotatably sleeved on the outer surface of the bottom end of the quick-disassembly coupling, a driving bevel gear is fixedly connected to the bottom end of the quick-disassembly coupling, a meshing bevel gear is meshed on the outer surface of the bottom end of the driving bevel gear, a driven bevel gear is meshed at the bottom end of the meshing bevel gear, a driven rotating shaft is fixedly connected to the side of the meshing bevel gear away from the center of the hexagonal drum, a connecting plate is provided at the end of the tilted crank away from the meshing bevel gear, an arc groove is opened on the outer surface of the connecting plate, and a toggle plate is fixedly connected to the end of the connecting plate away from the tilted crank.
[0005] Preferably, four meshing bevel gears are centrally symmetrically arranged with the center of the driving bevel gear as a reference, the four driving bevel gears are all rotatably connected to the inside of the positioning frame, the four driving bevel gears are all meshed with the driven bevel gears, the driven bevel gears are rotatably connected to the inside of the positioning frame, the bottom end of the driven rotating shaft passes through and extends to the outside of the positioning frame, and the driven rotating shaft is fixedly connected to the positioning frame.
[0006] Preferably, the tilt crank is slidably connected to the connecting plate through an arc groove provided on the connecting plate, and four tilt cranks, connecting plates, arc grooves and toggle plates are centrally symmetrically arranged with the center of the active bevel gear as a reference.
[0007] Preferably, it also includes a flip assembly disposed on the positioning frame; The flip assembly includes a fixed frame fixedly connected to the outer surface of the positioning frame on the side away from the center of the hexagonal roller, and a rotation spring is symmetrically fixedly connected inside the fixed frame. The inside of the toggle plate on the side away from the center of the hexagonal roller is equidistantly provided with columnar slots, and the columnar slots are fixedly connected with connecting springs, and the connecting springs are fixedly connected with a cylindrical tooth block at one end away from the slot wall of the columnar slot.
[0008] Preferably, four fixed frames are centrally symmetrically arranged with the center of the hexagonal drum as a reference, the toggle plates are rotatably connected to the fixed frames, the swing springs are sleeved on the outer surfaces of the swing plates, and the ends of the swing springs away from the fixed frames are fixedly connected to the outer walls of the toggle plates.
[0009] Preferably, the cylindrical tooth blocks are all slidably connected inside the cylindrical slots.
[0010] Preferably, it also includes a spoiler component arranged inside the electroplating tank; The spoiler assembly includes guide grooves equidistantly arranged on the inner wall of the electroplating tank body, a driven shaft passes through a positioning frame and is fixedly connected to one end thereof with a driven connecting rod, a fan blade is fixedly connected to the outer surface of an end of the driven connecting rod away from the positioning frame, a positioning rod is slidably connected to the inside of an end of the driven connecting rod away from the driven shaft, and a telescopic spring is arranged inside the end of the driven connecting rod away from the driven shaft.
[0011] Preferably, one end of the telescopic spring is fixedly connected to the driven connecting rod, and the other end of the telescopic spring is fixedly connected to the positioning rod.
[0012] Preferably, the cross-section of the guide groove is trapezoidal, and the width of the trapezoid gradually decreases from top to bottom.
[0013] Preferably, it also includes an auxiliary electroplating component disposed inside the hexagonal drum; The auxiliary electroplating assembly comprises convex blocks which are fixedly connected to the inner surface of the hexagonal drum at equal intervals. The inner surface of the hexagonal drum is provided with grooves at equal intervals. The grooves are arranged between two adjacent convex blocks on each surface of the hexagonal drum.
[0014] Beneficial Effects Compared with the prior art, the present invention provides a tilt-driven electroplating device, which has the following beneficial effects: Through the reciprocating motion of the toggle plate, when one of the toggle plates rotates to the bottom, the reciprocating fixed toggle plate can stir the parts piled up at the bottom of the hexagonal drum, thereby preventing the smaller parts from gradually sinking into the local gaps formed by the accumulation of other parts, making it difficult for the smaller parts to be unable to fully contact the electroplating solution like other parts. The stirring of the toggle plate can also prevent the electroplating solution from being stratified during use, thereby preventing the parts from being incompletely electroplated. By jointly setting the toggle plate and the cylindrical tooth block, when the cylindrical tooth block extends out of the toggle block, the cylindrical tooth block is equivalent to the extension rod of the toggle plate, and the cylindrical tooth block can be more deeply inserted into the parts at the bottom of the hexagonal drum, thereby further stirring the parts piled together, avoiding the parts of different sizes from being stuck to each other, resulting in the situation that the outer surface of some parts cannot be completely in contact with the electroplating solution; The difference in linear speed between the toggle plate and the hexagonal drum will cause the parts in the hexagonal drum to be subjected to forces of different directions and strengths. This difference in force will cause the parts to continuously roll, flip and move in the hexagonal drum, so that the parts can be fully mixed and contacted with the electroplating solution. The speed difference allows each part to move relatively independently, avoiding close connection between the parts. In addition, when there is a speed difference between the toggle plate and the hexagonal drum, the movement of the parts in the hexagonal drum is more complex and diverse. This complex movement allows each surface of the part to have the opportunity to contact other parts or electroplating solution, thereby increasing the contact area between the part and the electroplating solution; The interior of the hexagonal drum is divided into four equal parts by the centrally symmetrically arranged toggle plate, positioning frame and fixed frame, and the originally larger internal space is divided into four small spaces. In the smaller spaces, the electrolyte is more likely to form a relatively regular flow pattern. When the electrolyte circulates in each small space, it can more fully contact the surface of the part, reducing the "dead corner" of the electrolyte flow caused by the large space, so that each part of the part can obtain a more uniform ion supply, thereby improving the uniformity of the coating; The setting of the bumps and grooves in the hexagonal drum increases the surface area of the hexagonal drum wall, and forms more contact points between the hexagonal drum wall and the parts. During electroplating, the current needs to be conducted between the parts and the hexagonal drum wall. More contact points mean that the current has more paths to flow, thereby reducing the current concentration in the local area. The presence of the bumps and grooves can prevent the parts from being too closely attached to the hexagonal drum wall. If the parts are closely attached to the hexagonal drum wall for a long time, the contact resistance will increase, affecting the transmission of the current. The presence of the bumps and grooves is like a small "isolation pad", which keeps a certain gap between the parts and the hexagonal drum wall, reducing the impact of the change in contact resistance on the current transmission. Through the setting of fan blades and guide grooves, the rotation of the fan blades can make the bubbles generated in the electroplating process detach from the electrode surface and the surface of the plated part as quickly as possible, preventing the bubbles from adhering to the surface of the part and affecting the formation of the coating. In addition, the trapezoidal cross-section of the guide groove causes the fluid to generate eddy currents and secondary flows during the flow process. This complex flow mode can produce disturbances and shear forces on the bubbles, destroying the adhesion balance between the bubbles and the fluid, making it difficult for the bubbles to stably adhere to the surface of the plated part, thereby making it easier to be carried away. The trapezoidal shape of the guide groove provides a directional escape channel for the bubbles. The bubbles can gather in the guide groove and move along the direction of the groove, and finally detach from the fluid surface, rather than randomly gathering and adhering to the surface of the plated part. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention; Figure 2 This is a schematic diagram of the connection relationship of the hexagonal roller of the present invention; Figure 3 This is a schematic diagram of the connection relationship at the fixing plate of the present invention; Figure 4 This is a schematic diagram of the internal structure of the hexagonal drum of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the structure enlargement in the middle; Figure 6 This is a schematic diagram of the connection relationship of the positioning frame of the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at B in the middle; Figure 8 This is a schematic diagram of the connection relationship of the driven bevel gear of the present invention; Fig. 9 For the present invention Figure 8 A magnified schematic diagram of the structure at C in the middle; Fig.10 For the present invention Figure 8 A magnified schematic diagram of the structure at D in the middle; Fig.11 It is a schematic diagram of the internal structure of the driven connecting rod of the present invention.
[0016] In the figure: 11, electroplating tank; 12, stepping motor; 13, quick disassembly coupling; 14, hexagonal roller; 15, fixing plate; 21. Positioning frame; 22. Driving bevel gear; 23. Engaging bevel gear; 24. Driven bevel gear; 25. Driven rotating shaft; 26. Inclined crank; 27. Connecting plate; 28. Arc groove; 29. Toggle plate; 31. Fixed frame; 32. Rotation spring; 33. Columnar slot; 34. Connecting spring; 35. Columnar tooth block; 41. guide groove; 42. driven connecting rod; 43. fan blade; 44. positioning rod; 45. telescopic spring; 51. Bump; 52. Groove. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0018] Embodiments of the present invention See also Figures 1 to 9 and Fig.11, a tilt-driven electroplating device, comprising an electroplating tank 11, a stepper motor 12 is arranged above the electroplating tank 11, the stepper motor 12 is tilted with reference to the vertical plane of the electroplating tank 11, a quick-disassembly coupling 13 is fixedly connected to the output shaft end of the stepper motor 12, a hexagonal roller 14 is sleeved on the outside of the quick-disassembly coupling 13 away from the stepper motor 12, a fixing plate 15 is fixedly connected to the outer surface of the quick-disassembly coupling 13 away from the stepper motor 12, and the fixing plate 15 is fixedly connected to the inner wall of the hexagonal roller 14 at one end away from the quick-disassembly coupling 13, and also includes a toggle assembly arranged inside the hexagonal roller 14; The toggle assembly includes a positioning frame 21 rotatably sleeved on the outer surface of the bottom end of the quick-disassembly coupling 13, a driving bevel gear 22 is fixedly connected to the bottom end of the quick-disassembly coupling 13, a meshing bevel gear 23 is meshed on the outer surface of the bottom end of the driving bevel gear 22, a driven bevel gear 24 is meshed at the bottom end of the meshing bevel gear 23, a driven rotating shaft 25 is fixedly connected to the bottom end of the driven bevel gear 24, a tilted crank 26 is fixedly connected to the meshing bevel gear 23 on the side away from the center of the hexagonal drum 14, a connecting plate 27 is provided at the end of the tilted crank 26 away from the meshing bevel gear 23, an arc groove 28 is provided on the outer surface of the connecting plate 27, and a toggle plate 29 is fixedly connected to the end of the connecting plate 27 away from the tilted crank 26.
[0019] Among them, four meshing bevel gears 23 are symmetrically arranged with the center of the active bevel gear 22 as a reference, the four active bevel gears 22 are all rotatably connected to the inside of the positioning frame 21, the four active bevel gears 22 are all meshed with the driven bevel gears 24, the driven bevel gears 24 are rotatably connected to the inside of the positioning frame 21, the bottom end of the driven rotating shaft 25 passes through and extends to the outside of the positioning frame 21, and the driven rotating shaft 25 is fixedly connected to the positioning frame 21.
[0020] The tilt crank 26 is slidably connected to the connecting plate 27 through an arc groove 28 provided on the connecting plate 27 . Four tilt cranks 26 , connecting plate 27 , arc groove 28 and toggle plate 29 are symmetrically arranged with the center of the active bevel gear 22 as a reference.
[0021] Further embodiments See also Figures 7 to 10 , the tilt-driven electroplating device further includes a flipping assembly disposed on the positioning frame 21; The flipping assembly includes a fixed frame 31 fixedly connected to the outer surface of the positioning frame 21 away from the center of the hexagonal roller 14, and a rotation spring 32 is symmetrically fixedly connected inside the fixed frame 31. The inside of the toggle plate 29 away from the center of the hexagonal roller 14 is equidistantly provided with columnar grooves 33, and the columnar grooves 33 are fixedly connected with connecting springs 34. The connecting springs 34 are fixedly connected with a columnar tooth block 35 at one end away from the groove wall of the columnar groove 33.
[0022] Among them, four fixed frames 31 are symmetrically arranged with the center of the hexagonal drum 14 as a reference, the toggle plates 29 are rotatably connected to the fixed frames 31, the return springs 32 are sleeved on the outer surface of the toggle plates 29, and the ends of the return springs 32 away from the fixed frames 31 are fixedly connected to the outer wall of the toggle plates 29.
[0023] The cylindrical tooth blocks 35 are all slidably connected inside the cylindrical slots 33 .
[0024] The driven rotating shaft 25 is fixedly connected to the positioning frame 21 .
[0025] Further Embodiments See also Figure 1 , Figure 2 , Figure 4 and Fig.11 , the tilt-driven electroplating device further includes a spoiler component disposed inside the electroplating tank 11; The spoiler assembly includes guide grooves 41 equidistantly arranged on the inner wall of the electroplating tank body 11, and the driven shaft 25 passes through the positioning frame 21 and is fixedly connected to one end with a driven connecting rod 42, and the outer surface of the driven connecting rod 42 away from the positioning frame 21 is fixedly connected to a fan blade 43, and the inner part of the driven connecting rod 42 away from the driven shaft 25 is slidably connected to a positioning rod 44, and the inner part of the driven connecting rod 42 away from the driven shaft 25 is provided with a telescopic spring 45.
[0026] One end of the telescopic spring 45 is fixedly connected to the driven connecting rod 42 , and the other end of the telescopic spring 45 is fixedly connected to the positioning rod 44 .
[0027] The guide groove 41 has a trapezoidal cross section, and the width of the trapezoid gradually decreases from top to bottom.
[0028] Further Embodiments See also Figures 3 to 5 , the tilt-driven electroplating device further includes an auxiliary electroplating assembly disposed inside the hexagonal drum 14; The auxiliary electroplating assembly includes protrusions 51 fixedly connected to the inner surface of the hexagonal drum 14 at equal intervals. The inner surface of the hexagonal drum 14 is provided with grooves 52 at equal intervals. The grooves 52 are arranged between two adjacent protrusions 51 on each surface of the hexagonal drum 14 .
[0029] The working process and principle of the overall content of the above embodiment are as follows: Electroplating of parts: The staff adds the plating solution into the plating tank 11, and then inputs the parts to be plated into the hexagonal drum 14 through the external inclined track, and electrolyzes the plating solution through the anode collector provided on the plating tank 11 and the cathode conductive device provided on the hexagonal drum 14, so as to plate the surface of the parts; In the above process, when electroplating the parts, the staff needs to start the stepper motor 12, and then drive the fixed plate 15 to move through the quick disassembly coupling 13 fixedly connected to the output shaft end of the stepper motor 12, and then drive the hexagonal roller 14 fixedly connected to the fixed plate 15 to rotate, so that the rotation of the hexagonal roller 14 drives the parts to be electroplated loaded therein to move, so as to realize the roller plating of the parts; The quick disassembly coupling 13 rotates to drive the active bevel gear 22 fixedly connected thereto to rotate, and then the meshing bevel gear 23 meshes with the active bevel gear 22, and the meshing bevel gear 23 meshes with the driven bevel gear 24, so that the driven bevel gear 24 drives the driven rotating shaft 25 fixedly connected thereto to rotate; It should be noted that two adjacent meshing bevel gears 23 do not contact each other, so the movement of each meshing bevel gear 23 will not be affected by the adjacent meshing bevel gear 23; Since each meshing bevel gear 23 is fixedly connected with a tilting crank 26, the rotation of the meshing bevel gear 23 will drive the tilting crank 26 to rotate around the connection point between it and the meshing bevel gear 23 as a fulcrum. Since the end of the tilting crank 26 away from the meshing bevel gear 23 is slidably connected to the connecting plate 27 through the arc groove 28 provided on the connecting plate 27, and the connecting plate 27 is fixedly connected to the toggle plate 29, and the toggle plate 29 is rotationally connected to the fixed frame 31, the tilting crank 26 will drive the connecting plate 27 and the toggle plate 29 to rotate around the connection point between the toggle plate 29 and the fixed frame 31 as a fulcrum through the arc groove 28 and reciprocate in a cycle. During the reciprocating motion of the toggle plate 29, the return spring 32 fixedly connected to it will be forced to periodically stretch and contract. In the above process, since the driven shaft 25 is fixedly connected to the positioning frame 21, the rotation of the driven shaft 25 will drive the positioning frame 21 to rotate together, so the quick disassembly coupling 13 will drive the positioning frame 21 to rotate together during the rotation process, and the structure arranged on the positioning frame 21 will synchronously rotate around the center of the quick disassembly coupling 13, and the positioning frame 21 will synchronously drive the toggle plate 29 to reciprocate during the rotation process; As the toggle plate 29 continues to move under the drive of the positioning frame 21, some parts will be affected by the outer surface of the toggle plate 29, lifted by the surface of the toggle plate 29 and move upward for a distance. Figure 8 , one of the toggle plates 29 moves from the bottom to the top), the parts on the toggle plate 29 will fall and re-enter the parts piled up in the hexagonal drum 14; Since the electroplating of parts requires that the hexagonal roller 14 is completely placed in the electroplating solution, the movement of the toggle plate 29 will synchronously stir the electroplating solution inside the electroplating tank 11. The stirring of the toggle plate 29 can avoid stratification of the electroplating solution during use and prevent incomplete electroplating of parts. Through the reciprocating motion of the toggle plates 29, when one of the toggle plates 29 rotates to the bottom, the reciprocating fixed toggle plates 29 can stir the parts accumulated at the bottom of the hexagonal drum 14, thereby preventing the smaller parts from gradually sinking into the local gaps formed by the accumulation of other parts, and being difficult to be unable to fully contact the electroplating solution like other parts; During the movement of the toggle plate 29, the cylindrical tooth block 35 slidably connected to the cylindrical slot 33 on the toggle plate 29 will move accordingly. Since the toggle plate 29 and other structures are inclined with respect to the vertical plane, the cylindrical tooth block 35 is affected by the centrifugal force caused by the rotation of the quick disassembly coupling 13 and the gravity during the movement. Specifically, when the toggle plate 29 moves from the top to the bottom (see Figure 8 ), the cylindrical tooth block 35 inside the toggle plate 29 will be extended from the inside of the toggle plate 29 by the combined action of centrifugal force and gravity, and stretch the connecting spring 34 fixedly connected to the cylindrical tooth block 35, and when the toggle plate 29 rotates to the top again, it will return to the inside of the toggle plate 29 under the action of the rebound force of the connecting spring 34; By the common arrangement of the toggle plate 29 and the cylindrical tooth block 35, when the cylindrical tooth block 35 extends out of the toggle block, the cylindrical tooth block 35 is equivalent to the extension rod of the toggle plate 29, and the cylindrical tooth block 35 can be more deeply inserted into the parts located at the bottom of the hexagonal drum 14, thereby further stirring the parts piled together, avoiding the parts of different sizes from being stuck to each other, resulting in the situation that the outer surface of some parts cannot be completely in contact with the electroplating solution; The rotation of the quick-disassembly coupling 13 will drive the active bevel gear 22 to rotate. Since there is a numerical difference between the rotation radius of the active bevel gear 22 and the quick-disassembly coupling 13, and the diameter of the quick-disassembly coupling 13 is larger than the diameter of the driven shaft 25, the positioning frame 21 and the structure on the positioning frame 21, which are driven by the active bevel gear 22, the meshing bevel gear 23 and the driven bevel gear 24 to move, will have a speed difference with the hexagonal drum 14 fixedly connected to the quick-disassembly coupling 13. This is because on the same rotating shaft (i.e., the quick disassembly coupling 13 and the driven rotating shaft 25), the object moves in a circular motion around the rotating shaft. According to the characteristics of rigid body rotation, the angles rotated by each point on the same rotating shaft in the same time are equal, so their angular velocities are the same, and the linear velocity is equal to the angular velocity multiplied by the radius, and the formula is v=rω (where v is the linear velocity, r is the rotation radius, and ω is the angular velocity). Since the rotation radius of objects at different radii is different, even if the angular velocity is the same, the linear velocity will be different due to the difference in radius. The larger the radius, the greater the linear velocity. The difference in linear speed between the toggle plate 29 and the hexagonal drum 14 will cause the parts in the hexagonal drum 14 to be subjected to forces of different directions and strengths. This difference in force will cause the parts to continuously roll, flip and move in the hexagonal drum 14, so that the parts can be fully mixed and contacted with the electroplating solution. The speed difference enables each part to move relatively independently, avoiding a tight connection between the parts. In addition, when there is a speed difference between the toggle plate 29 and the hexagonal drum 14, the movement of the parts in the hexagonal drum 14 is more complex and varied. This complex movement allows each surface of the part to have the opportunity to contact other parts or the electroplating solution, thereby increasing the contact area between the part and the electroplating solution. As the hexagonal drum 14 rotates, the inner surface of the hexagonal drum 14 is fixedly connected with convex blocks 51 at equal intervals, and the inner surface of the hexagonal drum 14 is provided with grooves 52 at equal intervals, and the grooves 52 are arranged between two adjacent convex blocks 51 on each surface of the hexagonal drum 14. Therefore, as the hexagonal drum 14 rotates, the convex blocks 51 and the grooves 52 will continuously contact and collide with the surface of the part, thereby increasing the uncertainty of the movement direction of the part during the electroplating process. In the above process, the toggle plate 29, the positioning frame 21 and the fixed frame 31, which are arranged symmetrically, divide the interior of the hexagonal drum 14 into four equal parts, and divide the originally larger internal space into four small spaces. In the smaller spaces, the electrolyte is more likely to form a relatively regular flow pattern. When the electrolyte circulates in each small space, it can more fully contact the surface of the part, reducing the "dead corner" of the electrolyte flow caused by the large space, so that each part of the part can obtain a more uniform ion supply, thereby improving the uniformity of the coating; In addition, the arrangement of the protrusions 51 and the grooves 52 in the hexagonal drum 14 increases the surface area of the wall of the hexagonal drum 14 and forms more contact points between the wall of the hexagonal drum 14 and the parts. During electroplating, the current needs to be conducted between the parts and the wall of the hexagonal drum 14. More contact points mean that the current has more paths to flow, thereby reducing the current concentration in the local area. The presence of the protrusions 51 and the grooves 52 can prevent the parts from being too closely attached to the wall of the hexagonal drum 14. If the parts are closely attached to the wall of the hexagonal drum 14 for a long time, the contact resistance will increase, affecting the transmission of the current. The presence of the protrusions 51 and the grooves 52 is like a small "isolation pad", which keeps a certain gap between the parts and the wall of the hexagonal drum 14, reducing the influence of the change of the contact resistance on the current transmission. As the driven shaft 25 rotates, the driven connecting rod 42 fixedly connected to the driven shaft 25 moves accordingly, driving the fan blades 43 fixedly connected to the outer surface of the driven connecting rod 42 to rotate synchronously. The rotation of the fan blades 43 can stir the electroplating liquid inside the electroplating tank 11. When the fan blades 43 rotate, they push the electroplating solution to form a complex flow pattern, including eddy currents, annular currents, etc. This flow pattern can break the concentration gradient and temperature gradient that may exist in the electroplating solution, and promote the full mixing of various components in the electroplating solution, such as metal ions, additives, etc. In addition, during the electroplating process, it is necessary to continuously transport metal cations from the inside of the solution to the cathode (plated part) surface for reduction reaction. The rotation of the fan blades 43 can speed up the convection speed of the solution, allowing the metal cations to reach the surface of the plated part faster, and also help to take away the by-products produced by the reaction in time; As the fan blades 43 continue to rotate, gas may be generated at both the cathode and the anode during the electroplating process. During the anodic oxidation process, the anode will generate oxygen. The rotation of the fan blades 43 can make these bubbles separate from the electrode surface and the surface of the plated part as quickly as possible, preventing the bubbles from adhering to the surface and affecting the formation of the coating. In addition, a guide groove 41 is provided on the inner wall of the electroplating tank 11. The cross section of the guide groove 41 is trapezoidal, and the width of the trapezoid gradually decreases from top to bottom. During the electroplating process, the cathode will produce byproducts such as hydrogen bubbles. If the bubbles adhere to the surface of the plated workpiece, it will affect the uniformity and density of the coating. The existence of the guide groove 41 can cause a certain disturbance in the electroplating solution, which helps the bubbles to detach and float, reduce the residence time and adhesion amount of bubbles on the surface of the plated workpiece, and thus improve the quality of the coating; The special shape of the guide groove 41 causes the fluid to generate eddy currents and secondary flows during the flow process. This complex flow pattern can cause disturbances and shear forces on the bubbles, destroying the adhesion balance between the bubbles and the fluid, making it difficult for the bubbles to stably adhere to the surface of the plated workpiece, thereby making it easier for them to be carried away. The trapezoidal shape of the guide groove 41 provides a directional escape channel for the bubbles. The bubbles can gather in the guide groove 41 and move along the direction of the groove, and finally break away from the fluid surface, rather than randomly gathering and adhering to the surface of the plated workpiece.
[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tilt-driven electroplating device, comprising an electroplating tank (11), a stepper motor (12) being arranged above the electroplating tank (11), the stepper motor (12) being tilted with reference to the vertical plane of the electroplating tank (11), a quick-detachable coupling (13) being fixedly connected to the output shaft end of the stepper motor (12), a hexagonal roller (14) being sleeved on the outside of the quick-detachable coupling (13) away from the stepper motor (12), a fixing plate (15) being fixedly connected to the outer surface of the quick-detachable coupling (13) away from the stepper motor (12), and a fixing plate (15) being fixedly connected to the inner wall of the hexagonal roller (14) on the end of the quick-detachable coupling (13) away from the stepper motor (12), and characterized in that: It also includes a toggle assembly arranged inside the hexagonal drum (14); The toggle assembly comprises a positioning frame (21) rotatably sleeved on the outer surface of the bottom end of the quick-disassembly coupling (13); the bottom end of the quick-disassembly coupling (13) is fixedly connected to a driving bevel gear (22); the outer surface of the bottom end of the driving bevel gear (22) is meshed with a meshing bevel gear (23); the bottom end of the meshing bevel gear (23) is meshed with a driven bevel gear (24); the bottom end of the driven bevel gear (24) is fixedly connected to a driven rotating shaft (25); the meshing bevel gear (23) is fixedly connected to a tilting crank (26) at one side away from the center of the hexagonal roller (14); a connecting plate (27) is provided at one end of the tilting crank (26) away from the meshing bevel gear (23); an arc groove (28) is provided on the outer surface of the connecting plate (27); and a toggle plate (29) is fixedly connected to one end of the connecting plate (27) away from the tilting crank (26).
2. The tilt-driven electroplating device according to claim 1, characterized in that: Four meshing bevel gears (23) are centrally symmetrically arranged with the center of the active bevel gear (22) as a reference. The four active bevel gears (22) are all rotatably connected to the inside of the positioning frame (21). The four active bevel gears (22) are all meshed with the driven bevel gears (24). The driven bevel gears (24) are rotatably connected to the inside of the positioning frame (21). The bottom end of the driven rotating shaft (25) passes through and extends to the outside of the positioning frame (21). The driven rotating shaft (25) is fixedly connected to the positioning frame (21).
3. The tilt-driven electroplating device according to claim 1, characterized in that: The tilting crank (26) is slidably connected to the connecting plate (27) via an arc groove (28) provided on the connecting plate (27). Four tilting cranks (26), the connecting plate (27), the arc groove (28) and the toggle plate (29) are centrally symmetrically arranged with the center of the active bevel gear (22) as a reference.
4. The tilt-driven electroplating device according to claim 1, characterized in that: Also included is a flipping assembly disposed on the positioning frame (21); The flip assembly comprises a fixed frame (31) fixedly connected to the outer surface of a side of the positioning frame (21) away from the center of the hexagonal roller (14), a rotation spring (32) symmetrically fixedly connected inside the fixed frame (31), a columnar slot (33) equidistantly formed inside the side of the toggle plate (29) away from the center of the hexagonal roller (14), a connecting spring (34) fixedly connected inside the columnar slot (33), and a columnar tooth block (35) fixedly connected to one end of the connecting spring (34) away from the slot wall of the columnar slot (33).
5. The tilt-driven electroplating device according to claim 4, characterized in that: Four fixed frames (31) are centrally symmetrically arranged with the center of the hexagonal drum (14) as a reference, the toggle plates (29) are all rotatably connected to the fixed frames (31), the return springs (32) are all sleeved on the outer surface of the toggle plates (29), and the ends of the return springs (32) away from the fixed frames (31) are fixedly connected to the outer wall of the toggle plates (29).
6. The tilt-driven electroplating device according to claim 1, characterized in that: The cylindrical tooth blocks (35) are all slidably connected inside the cylindrical slots (33).
7. The tilt-driven electroplating device according to claim 1, characterized in that: Also included is a spoiler component arranged inside the electroplating tank (11); The spoiler assembly comprises guide grooves (41) equidistantly arranged on the inner wall of the electroplating tank body (11); a driven shaft (25) passes through the positioning frame (21) and is fixedly connected to one end thereof with a driven connecting rod (42); a fan blade (43) is fixedly connected to the outer surface of one end of the driven connecting rod (42) away from the positioning frame (21); a positioning rod (44) is slidably connected to the interior of one end of the driven connecting rod (42) away from the driven shaft (25); and a telescopic spring (45) is arranged inside one end of the driven connecting rod (42) away from the driven shaft (25).
8. The tilt-driven electroplating device according to claim 7, characterized in that: One end of the telescopic spring (45) is fixedly connected to the driven connecting rod (42), and the other end of the telescopic spring (45) is fixedly connected to the positioning rod (44).
9. The tilt-driven electroplating device according to claim 7, characterized in that: The guide groove (41) has a trapezoidal cross section, and the width of the trapezoid gradually decreases from top to bottom.
10. The tilt-driven electroplating device according to claim 1, characterized in that: Also included is an auxiliary electroplating component disposed inside the hexagonal drum (14); The auxiliary electroplating assembly comprises protrusions (51) fixedly connected to the inner surface of a hexagonal drum (14) at equal intervals, and grooves (52) are formed on the inner surface of the hexagonal drum (14) at equal intervals. The grooves (52) are each arranged between two adjacent protrusions (51) on each surface of the hexagonal drum (14).
Citation Information
Patent Citations
Barrel plating equipment
CN116180203A
Electroplating equipment
CN119465356A
Barrel plating production line
CN211999970U