阅读说明：本技术 一种用于提高电子连接器表面镀层均匀度的方法和系统 (Method and system for improving uniformity of surface coating of electronic connector ) 是由 谭宏干 于 2021-05-26 设计创作，主要内容包括：本申请涉及一种用于提高电子连接器表面镀层均匀度的方法和系统,涉及电子连接器电镀的领域,其包括承载架,承载架沿电子连接器的输送方向依次设置有多个槽体,承载架设置有冷水箱,冷水箱与槽体之间设置有循环机构,槽体的底壁上表面固定有多个用于冷却水流动的冷水进水管廊和冷水出水管廊,冷水进水管廊与相邻的冷水出水管廊之间设置有连通管廊,槽体的底壁转动连接有搅拌轴,搅拌轴与连通管廊之间设置有传动机构,搅拌轴的外周壁固定有搅拌桨叶,槽体设置有检测传感器,承载架设置有多组注射机构,槽体设置有用于排出电镀溶液的排液机构。本申请具有抑制电镀溶液持续升温的效果,有利于提高电子连接器表面镀层的均匀度。(The application relates to a method and a system for improving uniformity of an electronic connector surface coating, and relates to the field of electronic connector electroplating, which comprises a bearing frame, the bearing frame is provided with a plurality of groove bodies in sequence along the conveying direction of an electronic connector, the bearing frame is provided with a cold water tank, a circulating mechanism is arranged between the cold water tank and the groove bodies, the upper surface of the bottom wall of each groove body is fixedly provided with a plurality of cold water inlet pipe galleries and cold water outlet pipe galleries for cooling water flowing, a communication pipe gallery is arranged between each cold water inlet pipe gallery and the adjacent cold water outlet pipe gallery, the bottom wall of each groove body is rotatably connected with a stirring shaft, a transmission mechanism is arranged between each stirring shaft and the corresponding communication pipe gallery, the peripheral wall of each stirring shaft is fixedly provided with a stirring paddle, the groove bodies are provided with detection sensors, a plurality of groups of injection mechanisms are arranged, and the groove bodies are provided with a liquid discharge mechanism for discharging electroplating solution. The electroplating solution temperature-raising restraining device has the effect of restraining the continuous temperature rise of the electroplating solution, and is favorable for improving the uniformity of the surface coating of the electronic connector.)

1. A system for improving uniformity of surface coating of an electrical connector, comprising: including bearing frame (1), bear frame (1) and set gradually a plurality of cell bodies (2) along electronic connector's direction of delivery, bear frame (1) and be provided with cold water storage cistern (3), cold water storage cistern (3) with be provided with between cell body (2) and be used for ordering about cold water endless circulation mechanism (4), the diapire upper surface of cell body (2) is fixed with a plurality of cold water inlet pipe gallery (21) and cold water outlet pipe gallery (22) that are used for cooling water to flow, and is a plurality of cold water inlet pipe gallery (21) and a plurality of cold water outlet pipe gallery (22) staggered arrangement, be provided with between cold water inlet pipe gallery (21) and adjacent cold water outlet pipe gallery (22) intercommunication pipe gallery (23), the diapire of cell body (2) rotates and is connected with (mixing shaft (24), mixing shaft (24) with be provided with between intercommunication pipe gallery (23) and be used for ordering about mixing shaft (24) pivoted drive mechanism (5), the periphery wall of (mixing) shaft (24) is fixed with a plurality of stirring paddle leaf (241) that are located inside cell body (2), cell body (2) are provided with and are used for detecting detection sensor (25) of electroplating solution pH, concentration and liquid level, bear frame (1) be provided with the multiunit be used for to add water, high concentration electroplating solution or pH regulator's injection mechanism (6) in cell body (2), cell body (2) are provided with drain mechanism (7) that are used for discharging electroplating solution.

2. The system of claim 1, wherein the coating uniformity is further characterized by: circulating mechanism (4) include circulating water pump (41) and flow valve (42), the entrance point of circulating water pump (41) with the delivery port of cold water storage cistern (3) is connected, the exit end of circulating water pump (41) is connected with a plurality of the cooling water is intake the water main pipe (411) of piping lane (21) intercommunication, flow valve (42) install in intake on being responsible for (411), the water inlet of cold water storage cistern (3) is connected with a plurality of the cooling water is gone out the water of piping lane (22) intercommunication and is responsible for (31) of going out.

3. The system of claim 1, wherein the coating uniformity is further characterized by: drive mechanism (5) are including being located rotating disc (51) and a plurality of being fixed in intercommunication piping lane (23) driving vane (52) of rotating disc (51), the inside cavity of intercommunication piping lane (23) is the arc cavity, rotating disc (51) are fixed to be overlapped and are located (mixing) shaft (24), it is a plurality of driving vane (52) are followed the circumferencial direction interval arrangement of rotating disc (51).

4. The system of claim 1, wherein the coating uniformity is further characterized by: injection mechanism (6) including being fixed in bear raw material tank (61) of frame (1) and being located injection tube (62) of cell body (2) top, bear frame (1) and rotate and be connected with driven shaft (11), the fixed cover of driven shaft (11) is equipped with shutoff dish (111), shutoff dish (111) are provided with a plurality of shutoff pieces (1111) of arranging equally along its axial, shutoff piece (1111) are used for the shutoff the export of injection tube (62), shutoff dish (111) with be provided with between (mixing) shaft (24) and be used for driving about shutoff dish (111) intermittent type pivoted intermittent type subassembly (12), raw material tank (61) with be provided with between injection tube (62) and be used for adjusting injection flow's adjusting part (13).

5. The system of claim 4, wherein the coating uniformity is further characterized by: and an elastic rubber pad (15) is fixed on the top wall of the plugging sheet (1111).

6. The system of claim 4, wherein the coating uniformity is further characterized by: intermittent type subassembly (12) are located including fixed cover intermittent type dish (121), be fixed in (mixing) shaft (24) top drive pin (122) and a plurality of with drive pin (122) butt adaptation transmission piece (123) of intermittent type dish (121) top wall, intermittent type dish (121) are located the below of shutoff dish (111), it is a plurality of transmission piece (123) are fixed in a plurality ofly along vertical direction respectively the diapire of shutoff piece (1111).

7. The system of claim 4, wherein the coating uniformity is further characterized by: the bottom of driven shaft (11) is located inside cell body (2), the bottom mounting of driven shaft (11) has a plurality of diffusion flabellum (112), just the thrust surface orientation of diffusion flabellum (112) is kept away from the direction of injection pipe (62).

8. The system of claim 4, wherein the coating uniformity is further characterized by: the adjusting assembly (13) comprises a transition box (131) and two adjusting plates (132) which are positioned between the raw material box (61) and the injection pipe (62), the two adjusting plates (132) are respectively hinged to two opposite sides of the raw material box (61), and a driving assembly (14) for driving the adjusting plates (132) to rotate is arranged between the raw material box (61) and the bearing frame (1).

9. The system of claim 8, wherein the coating uniformity is further characterized by: the driving assembly (14) comprises a gear box (141) fixed on the bearing frame (1), a driving gear (142) fixedly sleeved on an output shaft of the gear box (141), a first driven gear (143) meshed with the driving gear (142) and a second driven gear (144) meshed with the first driven gear (143), wherein a hinge rod (1321) is fixed on the adjusting plate (132), the hinge rod (1321) rotates and protrudes out of the side wall of the transition box (131), the first driven gear (143) is fixedly sleeved on any hinge rod (1321), and the second driven gear (144) is fixedly sleeved on the other hinge rod (1321).

10. A method for improving uniformity of surface plating of an electronic connector, a system for improving uniformity of surface plating of an electronic connector according to any one of claims 1 to 9, wherein: comprises the following steps of (a) carrying out,

pretreatment: removing oil substances on the surface of the electronic connector through inorganic ultrasonic waves, and removing an oxide layer on the surface of the electronic connector through microetching and squeezing;

electroplating: then the electronic connector is driven to enter the tank body (2) in sequence for electroplating, the circulating mechanism (4) drives cooling water to circulate in the cold water inlet pipe gallery (21), the cold water outlet pipe gallery (22) and the communicating pipe gallery (23) in the electroplating process and cool the electroplating solution, the transmission mechanism (5) drives the stirring shaft (24) and the stirring paddle (241) to stir the electroplating solution, the injection mechanism (6) replenishes water, high-concentration electroplating solution or pH regulator into the tank body (2), and the liquid drainage mechanism (7) keeps the liquid level in the tank body (2) balanced;

and (3) post-treatment: and washing and drying the electroplated electronic connector.

Technical Field

The present application relates to the field of electronic connector plating, and more particularly, to a method and system for improving uniformity of surface plating on an electronic connector.

Background

At present, the development of electronic connectors is moving towards miniaturization, high density, high speed transmission and high frequency, so that the electroplating technology of electronic connectors becomes a key point. The prior fully-automatic electroplating production line replaces the conventional manual, semi-automatic barrel plating and rack plating production modes, and comprises a plurality of groove bodies so as to continuously electroplate and carry out other operations on the electronic connector.

In the electroplating process of the electronic connector, as the chemical reaction in the electroplating process is an exothermic reaction, electric energy in the electroplating bath cannot be completely converted into chemical energy, so that part of the electric energy is converted into the chemical energy, and further the temperature of the electroplating solution in the electroplating bath is continuously increased.

Disclosure of Invention

In order to improve the problem that the electroplating solution is easy to continuously heat up, the application provides a method and a system for improving the uniformity of the surface coating of the electronic connector.

The method and the system for improving the uniformity of the surface coating of the electronic connector adopt the following technical scheme:

a system for improving uniformity of surface plating of an electronic connector comprises a bearing frame, wherein a plurality of groove bodies are sequentially arranged along the conveying direction of the electronic connector on the bearing frame, the bearing frame is provided with a cold water tank, a circulating mechanism for driving cold water to circulate is arranged between the cold water tank and the groove bodies, a plurality of cold water inlet pipe galleries and cold water outlet pipe galleries which are used for cooling water to flow are fixed on the upper surface of the bottom wall of the groove bodies, the cold water inlet pipe galleries and the cold water outlet pipe galleries are arranged in a staggered mode, a communication pipe gallery is arranged between the cold water inlet pipe gallery and the adjacent cold water outlet pipe gallery, a stirring shaft is rotatably connected to the bottom wall of the groove body, a transmission mechanism for driving the stirring shaft to rotate is arranged between the stirring shaft and the communication pipe gallery, and a plurality of stirring blades which are positioned inside the groove body are fixed on the peripheral wall of the stirring shaft, the tank body is provided with a detection sensor for detecting the pH, concentration and liquid level of the electroplating solution, the bearing frame is provided with a plurality of groups of injection mechanisms for adding water, high-concentration electroplating solution or pH regulator into the tank body, and the tank body is provided with a liquid discharge mechanism for discharging the electroplating solution.

Through adopting above-mentioned technical scheme, in the electroplating process to electronic connector, order about cold water constantly along cold water inlet pipe gallery through circulation mechanism, intercommunication piping lane and cold water outlet pipe gallery circulate, and constantly the inside electroplating solution of cell body cools down, with this effect that the realization restraines electroplating solution and lasts the intensification, and drive (mixing) shaft and stirring paddle leaf through drive mechanism and rotate, drive the inside ion of electroplating solution and spread evenly, and then make electronic connector and electroplating solution's ion evenly contact, be favorable to improving electronic connector surface coating's the degree of consistency. Simultaneously along with electroplating going on, the inside solute of electroplating solution can be consumed gradually to influence electroplating solution's concentration and pH, and injection mechanism can be to the inside supplementary water of electroplating solution, high concentration solution or pH regulator, with this pH and the solute concentration of the inside electroplating solution of regulation cell body, make electroplating solution's pH and solute concentration all be in the optimum scope all the time, further promote electronic connector surface coating's degree of consistency and quality. The injection mechanism can be discharged the solution in the cell body to through the cooperation with the injection mechanism, continuously update the inside electroplating solution of cell body, reduce the concentration of the impurity in the electroplating solution, further promote the degree of consistency and the quality of electronic connector surface coating.

Optionally, the circulation mechanism includes circulating water pump and flow valve, the inlet end of circulating water pump with the delivery port of cold water storage cistern is connected, the outlet end of circulating water pump is connected with a plurality of the person in charge of intaking of cold water intake pipe gallery intercommunication, the flow valve install in on the person in charge of intaking, the water inlet of cold water storage cistern is connected with and a plurality of the play water person in charge of cold water outlet pipe gallery intercommunication.

Through adopting above-mentioned technical scheme, provide cooling water circulation's power through circulating water pump, according to the detection of detection sensor to the inside electroplating solution temperature of cell body to control flow valve's aperture, the inside temperature of cell body that can accurately regulate and control reduces the risk that the temperature surpassed best processing temperature scope.

Optionally, drive mechanism is including being located rolling disc and a plurality of being fixed in the intercommunication piping lane the transmission blade of rolling disc, the inside cavity of intercommunication piping lane is the arc cavity, the fixed cover of rolling disc is located the (mixing) shaft, it is a plurality of transmission blade follows the circumferencial direction interval arrangement of rolling disc.

Through adopting above-mentioned technical scheme, because circulating water pump pressurizes the cooling water, turn to in the intercommunication piping lane emergence as the cooling water, the cooling water strikes the moving blade simultaneously, and then make driving vane rotate with the axis that the rotation coiled the (mixing) shaft, and drive the (mixing) shaft and take place to rotate, drive with this and electroplate solution and take place to flow, and order about the ion and spread evenly, further promote and electroplate the degree of consistency, the lower solution diffusion of temperature that can make the cell body bottom simultaneously is to other regions, further promote the cooling effect. And the stirring shaft and the stirring blade are driven to rotate without additionally adding equipment, so that the cost for processing the surface coating of the electronic connector is reduced.

Optionally, injection mechanism is including being fixed in bear the raw material tank of frame and being located the injection syringe of cell body top, bear and rotate to be connected with the driven shaft, the fixed cover of driven shaft is equipped with the shutoff dish, the shutoff dish is provided with the shutoff piece of a plurality of equal intervals along its axial, the shutoff piece is used for the shutoff the export of injection syringe, the shutoff dish with be provided with between the (mixing) shaft and be used for ordering about shutoff dish intermittent type pivoted intermittent type subassembly, the raw material tank with be provided with the adjusting part who is used for adjusting injection flow between the injection syringe.

Through adopting above-mentioned technical scheme, in the electroplating process to electronic connector, intermittent type subassembly orders about shutoff dish and shutoff piece intermittent type and rotates, when the bottom separation of shutoff piece and injection syringe, water, high concentration solution or pH regulator pass through gravity and are shifted out by raw material tank cunning to it is internal to enter the tank along the injection syringe, with this purpose of realizing adjusting the inside electroplating solution's of cell body pH and solute concentration, make electroplating solution's pH and solute concentration all be in the optimum scope all the time, further promote electronic connector surface coating's degree of consistency and quality. The intermittent type subassembly can control water, high concentration solution or pH regulator and slowly get into the cell body in, reduces the too big risk of dosing, and the flow of concentration and pH regulating water, high concentration solution or pH regulator that the adjusting part detected according to the detection sensor further promotes the precision of adding, is favorable to further promoting the degree of consistency of electronic connector surface coating.

Optionally, an elastic rubber pad is fixed to the top wall of the blocking piece.

Through adopting above-mentioned technical scheme, the wearing and tearing between shutoff piece and the injection syringe can be reduced to the elastic rubber pad, is favorable to prolonging the life of spare part, further reduction in production cost. Meanwhile, in the process that the plugging sheet is close to the bottom of the injection tube, the elastic rubber pad can deform and fill the bottom opening of the injection tube, so that the bottom opening of the injection tube is plugged more tightly.

Optionally, the intermittent type subassembly is located including fixed cover the intermittent type dish on (mixing) shaft top, be fixed in the drive round pin of intermittent type dish roof and a plurality of with the transmission piece of drive round pin butt adaptation, the intermittent type dish is located the below of shutoff dish, it is a plurality of the transmission piece is fixed in a plurality of along vertical direction respectively the diapire of shutoff piece.

Through adopting above-mentioned technical scheme, drive intermittent type dish synchronous rotation through the (mixing) shaft, until the drive round pin rotates to between two transmission pieces and butt in the transmission piece, and order about the shutoff to wind the driven shaft through promoting the transmission piece and rotate, make the opening separation of shutoff piece and injection syringe bottom, when the drive round leaves between two transmission pieces, the shutoff piece shutoff is in the opening part of injection syringe bottom, wait to drive round pin and order about the shutoff dish once more after the (mixing) shaft rotates the round and rotate, and repeat above-mentioned operation, with this realization shutoff dish intermittent type pivoted effect, and slowly add water, high concentration solution or pH regulator to the cell body in. Meanwhile, the driving equipment for driving the driven shaft to rotate is not required to be additionally arranged, and the production cost is favorably reduced.

Optionally, the bottom of the driven shaft is located inside the groove body, a plurality of diffusion fan blades are fixed at the bottom of the driven shaft, and the thrust surfaces of the diffusion fan blades face the direction away from the injection tube.

Through adopting above-mentioned technical scheme, at the rotation in-process of driven shaft, water, high concentration solution or pH regulator inject into the cell body intermittently, drive the diffusion flabellum moreover and rotate constantly, and the thrust that the diffusion flabellum produced orders about water, high concentration solution or pH regulator and diffuses to other regions of cell body, and has accelerated the speed of diffusion for the electroplating solution concentration degree of consistency in the cell body is higher, further promotes the degree of consistency of electronic connector surface coating.

Optionally, the adjusting assembly includes a transition box and two adjusting plates, the transition box and the two adjusting plates are located between the raw material box and the injection tube, the two adjusting plates are respectively hinged to two opposite sides of the raw material box, and a driving assembly for driving the adjusting plates to rotate is arranged between the raw material box and the bearing frame.

Through adopting above-mentioned technical scheme, change according to the data that detect the sensor, drive two regulating plates through drive assembly and rotate, and then adjust the gap size between two regulating plates to this flow that realizes changing water, high concentration solution or pH regulator avoids water, high concentration solution or pH regulator too much or too little joining, makes solution concentration and pH be in the optimum within range, further promotes the degree of consistency of electronic connector surface coating.

Optionally, the drive assembly is including being fixed in gear box, the fixed cover that bears the frame are located the driving gear of gear box output shaft, with driving gear engaged first driven gear and with first driven gear engaged second driven gear, the regulating plate is fixed with the hinge bar, the hinge bar rotates and outstanding in the lateral wall of transition case, the fixed cover of first driven gear is located arbitrary the hinge bar, another is located to the fixed cover of second driven gear the hinge bar.

Through adopting above-mentioned technical scheme, order about its output shaft through the gear box and slowly rotate to through the meshing transmission between driving gear, first driven gear and the second driven gear, make two articulated levers synchronous rotation and rotate around opposite direction, and then make the top of two regulating plates be close to each other or keep away from, be favorable to adjusting the aperture between two regulating plates steadily.

The present application further provides a method for improving uniformity of surface plating of an electronic connector, comprising the steps of,

pretreatment: removing oil substances on the surface of the electronic connector through inorganic ultrasonic waves, and removing an oxide layer on the surface of the electronic connector through microetching and squeezing;

electroplating: driving the electronic connector to sequentially enter the tank body for electroplating, driving the cooling water to circulate in the cold water inlet pipe gallery, the cold water outlet pipe gallery and the communicating pipe gallery by the circulating mechanism in the electroplating process, cooling the electroplating solution, driving the stirring shaft and the stirring paddle to stir the electroplating solution by the transmission mechanism, supplementing water, the high-concentration electroplating solution or the pH regulator into the tank body by the injection mechanism, and keeping the liquid level in the tank body to be balanced by the drainage mechanism;

and (3) post-treatment: and washing and drying the electroplated electronic connector.

By adopting the technical scheme, the uniformity of the surface coating of the electronic connector is higher.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cooling water circulates in the cold water inlet pipe gallery, the communication pipe gallery and the cold water outlet pipe gallery, so that the electroplating solution in the tank body can be cooled, and meanwhile, the cooling water drives the stirring shaft and the stirring paddle to rotate, so that the electroplating solution can be cooled more uniformly, and the effect of inhibiting the continuous temperature rise of the electroplating solution is realized;

2. the intermittent disc is driven to rotate by the stirring shaft, the plugging disc is driven to intermittently rotate by the driving pin and the transmission piece in a butting way, so that the plugging piece is intermittently separated from the injection tube, water, high-concentration solution or pH regulator is slidingly moved out of the raw material box by gravity and enters the tank body along the injection tube, and the pH value and the solute concentration of the electroplating solution are always in the optimal range;

3. the two adjusting plates are driven to rotate through the gear box, the driving gear, the first driven gear and the second driven gear, and then the size of a gap between the two adjusting plates is adjusted, so that the flow of water, high-concentration solution or pH adjusting agent is changed, excessive or insufficient addition of the water, the high-concentration solution or the pH adjusting agent is avoided, and the solution concentration and the pH value are in the optimal range.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic structural view of a hidden trough body in an embodiment of the present application;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic structural diagram of a stirring shaft and a transmission mechanism in the embodiment of the present application;

FIG. 5 is a schematic view of a rear view of the embodiment of the present application with the trough body hidden;

FIG. 6 is an enlarged schematic view of portion B of FIG. 2;

fig. 7 is an exploded view of the injection mechanism, adjustment assembly and drive assembly of an embodiment of the present application.

Reference numerals: 1. a carrier; 2. a trough body; 21. a cold water inlet pipe gallery; 22. a cold water outlet pipe gallery; 23. communicating the pipe gallery; 24. a stirring shaft; 241. a stirring paddle; 242. a drive bevel gear; 243. connecting the disks; 2431. a horizontal cover plate; 25. a detection sensor; 26. a synchronizing gear; 27. mounting a plate; 3. a cold water tank; 31. a main water outlet pipe; 4. a circulating mechanism; 41. a water circulating pump; 411. a main water inlet pipe; 42. a flow valve; 5. a transmission mechanism; 51. rotating the disc; 52. a driving blade; 6. an injection mechanism; 61. a raw material tank; 62. an injection tube; 7. a liquid discharge mechanism; 71. a liquid discharge pipe; 72. a control component; 721. a restrictor plate; 722. a driving cylinder; 8. a guide mechanism; 81. a main guide roller; 82. a first pair of guide rollers; 83. a second pair of guide rollers; 9. a driven bevel gear; 10. a transmission gear; 11. a driven shaft; 111. a plugging disc; 1111. a plugging sheet; 112. a diffuser blade; 12. a batch assembly; 121. an intermittent disk; 122. a drive pin; 123. a transfer sheet; 13. an adjustment assembly; 131. a transition box; 132. an adjusting plate; 1321. a hinged lever; 14. a drive assembly; 141. a gear case; 142. a driving gear; 143. a first driven gear; 144. a second driven gear; 15. an elastic rubber pad.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a system for improving surface coating uniformity of an electronic connector. Referring to fig. 1, the system for improving uniformity of surface plating of the electronic connector includes a bearing frame 1, the bearing frame 1 is sequentially provided with a plurality of tank bodies 2 along a conveying direction of the electronic connector, the bearing frame 1 is provided with a cold water tank 3 on one side of the tank bodies 2, and a circulating mechanism 4 for driving cold water circulation is arranged between the cold water tank 3 and the tank bodies 2.

Referring to fig. 2 and 3, the bottom wall upper surface of the tank body 2 is fixed with a plurality of cold water inlet pipe galleries 21 and cold water outlet pipe gallery 22 for cooling water to flow, the cold water inlet pipe gallery 21 and the cold water outlet pipe gallery 22 are all provided with three, and the three cold water inlet pipe gallery 21 and the three cold water outlet pipe gallery 22 are arranged in a staggered manner. Be provided with intercommunication piping lane 23 between cold water inlet pipe gallery 21 and the adjacent cold water outlet pipe gallery 22, the inside cavity of intercommunication piping lane 23 is cylindrical cavity. The circulating mechanism 4 drives the cold water to continuously circulate along the cold water inlet pipe gallery 21, the communicating pipe gallery 23 and the cold water outlet pipe gallery 22, and the electroplating solution in the tank body 2 is continuously cooled, so that the effect of inhibiting the continuous temperature rise of the electroplating solution is realized;

and the diapire of cell body 2 is connected with (mixing) shaft 24 through the bearing rotation, and (mixing) shaft 24 is provided with threely, and (mixing) shaft 24 is cylindrical shape and the axial is vertical direction, and (mixing) shaft 24 passes through the bearing rotation with the roof of intercommunication piping lane 23 and is connected. A transmission mechanism 5 (refer to fig. 4) for driving the stirring shaft 24 to rotate is arranged between the stirring shaft 24 and the communicating pipe gallery 23, and a plurality of stirring blades 241 positioned inside the tank body 2 are fixed on the outer peripheral wall of the stirring shaft 24. A guide mechanism 8 for guiding the conveying of the electronic connector is arranged in the groove body 2. The side wall of the tank body 2 is provided with a detection sensor 25 for detecting the pH, concentration and liquid level of the electroplating solution, the bearing frame 1 is provided with a plurality of groups of injection mechanisms 6 (refer to fig. 6) for adding water, high-concentration electroplating solution or pH regulator into the tank body 2, the injection mechanisms 6 are provided with three groups, and the three groups of injection mechanisms 6 are respectively positioned on one side of the top ends of the three stirring shafts 24. The tank 2 is provided with a drain mechanism 7 for discharging the plating solution.

Referring to fig. 1 and 3, the circulation mechanism 4 includes a circulation water pump 41 and a flow valve 42, an inlet end of the circulation water pump 41 is connected to a water outlet of the cold water tank 3 by a bolt, an outlet end of the circulation water pump 41 is connected to a water inlet main pipe 411 communicated with the plurality of cold water inlet pipe galleries 21 by a bolt, the flow valve 42 is mounted on the water inlet main pipe 411 by a flange, and a water inlet of the cold water tank 3 is connected to a water outlet main pipe 31 communicated with the plurality of cold water outlet pipe galleries 22. The power of cooling water circulation is provided by the circulating water pump 41, the temperature of the electroplating solution in the tank body 2 is detected by the detection sensor 25, the opening degree of the flow valve 42 is controlled, and the temperature in the tank body 2 can be accurately regulated.

Referring to fig. 2 and 4, the transmission mechanism 5 includes a rotating disk 51 located in the communicating pipe gallery 23 and a plurality of transmission blades 52 fixed to the rotating disk 51, two rotating disks 51 are provided, the rotating disk 51 is in a disk shape and is fixedly sleeved on the stirring shaft 24, the transmission blades 52 are arranged along the vertical direction, the top wall and the bottom wall of the transmission blades 52 are respectively welded to the two rotating disks 51, and the plurality of transmission blades 52 are uniformly spaced along the circumferential direction of the rotating disks 51. When the cooling water turns in the communication pipe gallery 23, the cooling water impacts the transmission blades 52 at the same time, so that the transmission blades 52 and the rotating disc 51 rotate around the axis of the stirring shaft 24 and drive the stirring shaft 24 to rotate.

Referring to fig. 2 and 4, the guide mechanism 8 includes a main guide roller 81, two first sub guide rollers 82 respectively located on both sides of the main guide roller 81, and two second sub guide rollers 83 located between the main guide roller 81 and the first sub guide rollers 82, and the main guide roller 81, the first sub guide rollers 82, and the second sub guide rollers 83 are rotatably connected to the side wall of the chute body 2. The tank body 2 is fixed with the mounting panel 27 that is used for supporting main guide roller 81, first vice guide roller 82 and the vice guide roller 83 of second, the height dimension of main guide roller 81 is greater than the height dimension of first vice guide roller 82, the height dimension of the vice guide roller 83 of second is less than the height dimension of first vice guide roller 82, above-mentioned structural design's guiding mechanism 8 can increase the movement track length of electronic connector at the tank body 2, and then make electronic connector and electroplating solution fully contact, make electronic connector's electroplating more comprehensive, further promote the degree of consistency of cladding.

Referring to fig. 2 and 5, a driving bevel gear 242 is fixedly sleeved on the middle sections of the three stirring shafts 24, and a driven bevel gear 9 meshed with the driving bevel gear 242 is sleeved on the end portion of the main guide roller 81 close to the stirring shaft 24 and the first auxiliary guide roller 82. The first auxiliary guide roller 82 and the second auxiliary guide roller 83 are both fixedly sleeved with a transmission gear 10, the inner side wall of the trough body 2 is rotatably connected with two synchronizing gears 26, the synchronizing gears 26 are located between the first auxiliary guide roller 82 and the second auxiliary guide roller 83, and the synchronizing gears 26 are meshed with the adjacent transmission gear 10. The stirring shaft 24 is driven to rotate by cooling water, and the main guide roller 81 and the first auxiliary guide roller 82 are driven to rotate through meshing transmission between the driving bevel gear 242 and the driven bevel gear 9, then the speed difference between the main guide roller 81, the first auxiliary guide roller 82, the second auxiliary guide roller 83 and the electronic connector can be reduced through meshing transmission between the synchronizing gear 26 and the transmission gear 10, and further the second auxiliary guide roller 83 is driven to rotate, so that the friction between the electronic connector and the main guide roller 81, and the friction between the first auxiliary guide roller 82 and the second auxiliary guide roller 83 are mainly rolling friction, the friction of the electronic connector and the surface coating of the electronic connector is reduced, and the uniformity of the surface coating of the electronic connector is further improved. Meanwhile, other mechanical equipment is not required to be added to drive the main guide roller 81, the first auxiliary guide roller 82 and the second auxiliary guide roller 83 to rotate, production cost is reduced, and electricity consumption can be reduced.

Referring to fig. 2 and 6, the injection mechanism 6 includes a raw material tank 61 fixed to the carrier 1 and an injection tube 62 located above the tank body 2, the carrier 1 is rotatably connected with the driven shaft 11, the driven shaft 11 is cylindrical and parallel to the stirring shaft 24, and the driven shaft 11 rotates about its axis. The fixed cover of the periphery wall of driven shaft 11 is equipped with the shutoff dish 111 of cylindrical shape, and shutoff dish 111 welds along its axial has a plurality of shutoff pieces 1111 of arranging equally, and shutoff piece 1111 arranges along the horizontal direction. The shutoff piece 1111 is used for the export of shutoff injection tube 62, and the roof of shutoff piece 1111 is fixed with elastic rubber pad 15, and elastic rubber pad 15 can reduce the wearing and tearing between shutoff piece 1111 and the injection tube 62, and the in-process that shutoff piece 1111 is close to the injection tube 62 bottom simultaneously, and elastic rubber pad 15 can take place to deform and fill injection tube 62 bottom opening. An intermittent assembly 12 for driving the blocking disc 111 to rotate intermittently is arranged between the blocking disc 111 and the stirring shaft 24, and an adjusting assembly 13 for adjusting the injection flow is arranged between the raw material tank 61 and the injection pipe 62.

Referring to fig. 2 and 6, the intermittent assembly 12 includes an intermittent disc 121 fixedly fitted on the top end of the stirring shaft 24, a driving pin 122 fixed on the top wall of the intermittent disc 121, and a plurality of transmission pieces 123 in abutting fit with the driving pin 122, and the intermittent disc 121 is in a disc shape and is located below the blocking disc 111. The drive pin 122 is cylindrical in shape and is axially vertical. The plurality of transfer pieces 123 are fixed to the bottom walls of the plurality of blocking pieces 1111 in the vertical direction, respectively. The stirring shaft 24 drives the intermittent disc 121 to synchronously rotate until the driving pin 122 rotates between the two transmission pieces 123 and abuts against the transmission pieces 123, the transmission pieces 123 are pushed to drive the blocking disc 111 to rotate around the driven shaft 11, so that the blocking piece 1111 is separated from the opening at the bottom of the injection tube 62, the blocking piece 1111 blocks the opening at the bottom of the injection tube 62 until the driving pin 122 leaves between the two transmission pieces 123, the blocking disc 111 is driven to rotate again after the driving pin 122 rotates around the stirring shaft 24 for one circle, and the above operation is repeated, so that the effect of intermittent rotation of the blocking disc 111 is realized, and water, high-concentration solution or pH regulator is slowly added into the tank body 2.

Referring to fig. 2 and 6, in order to uniformly diffuse water, a high-concentration electroplating solution or a pH regulator, the bottom end of the driven shaft 11 is located inside the tank body 2, a plurality of diffusion blades 112 are fixed to the bottom end of the driven shaft 11, the plurality of diffusion blades 112 are uniformly spaced around the circumferential direction of the transmission shaft, and the thrust surface of the diffusion blade 112 faces the direction away from the injection pipe 62. In the rotation process of the driven shaft 11, water, high-concentration solution or pH regulator is intermittently injected into the tank body 2, and the diffusion fan blades 112 are driven to rotate continuously, so that the thrust generated by the diffusion fan blades 112 drives the water, high-concentration solution or pH regulator to diffuse to other areas of the tank body 2.

Referring to fig. 2 and 7, the adjusting assembly 13 includes a transition box 131 and two adjusting plates 132 between the raw material box 61 and the injection tube 62, the two adjusting plates 132 are respectively hinged to opposite sides of the raw material box 61, the adjusting plates 132 are fixed with hinge rods 1321 arranged in a horizontal direction, the adjusting plates 132 swing around the hinge rods 1321, and the hinge rods 1321 rotate and protrude from the side walls of the transition box 131. Between the stock chest 61 and the carriage 1, a drive assembly 14 for driving the adjustment plate 132 in rotation is provided. When the end portions of the two regulating plates 132 abut against each other, the flow rate of water, a high-concentration plating solution, or a pH adjuster is minimized, and when the two regulating plates 132 are attached to the inner side wall of the transition box 131, the flow rate of water, a high-concentration plating solution, or a pH adjuster is maximized.

Referring to fig. 2 and 7, the driving assembly 14 includes a gear case 141 fixed to the carrier 1, a driving gear 142 fixedly secured to an output shaft of the gear case 141, a first driven gear 143 engaged with the driving gear 142, and a second driven gear 144 engaged with the first driven gear 143, the output shaft of the gear case 141 being arranged in a horizontal direction and parallel to the hinge lever 1321. The first driven gear 143 is fixedly secured to any one of the hinge rods 1321, and the second driven gear 144 is fixedly secured to the other hinge rod 1321. The output shaft of the gear box 141 is driven to rotate slowly, and the two hinge rods 1321 rotate synchronously and rotate around opposite directions through the meshing transmission among the driving gear 142, the first driven gear 143 and the second driven gear 144, so that the tops of the two adjusting plates 132 are close to or far away from each other, and the stable adjustment of the opening degree between the two adjusting plates 132 is facilitated.

Referring to fig. 2 and 3, the drainage mechanism 7 includes a drainage pipe 71 and a control assembly 72 for controlling the flow rate of the drainage pipe 71, a drainage hole is formed through the bottom wall of the tank body 2, the drainage pipe 71 is welded on the inner wall of the drainage hole, and the top of the drainage pipe 71 is higher than the bottom wall of the tank body 2, so that the risk of blockage of the drainage pipe 71 by sediment is reduced. The control assembly 72 comprises a current-limiting plate 721 sliding on the lower surface of the bottom wall of the tank body 2 and a driving cylinder 722 fixedly mounted on the lower surface of the bottom wall of the tank body 2, the current-limiting plate is attached to the bottom wall of the tank body 2 and slides along the horizontal direction, and an elastic rubber pad 15 is bonded on the top wall of the current-limiting plate 721. The piston rod of the driving cylinder 722 is welded with the side wall of the current-limiting plate 721, the piston rod of the driving cylinder 722 is arranged along the horizontal direction, the moving distance of the piston rod along the horizontal direction is controlled by the driving cylinder 722, and the degree of the current-limiting plate 721 covering the liquid discharge hole is changed, so that the effect of changing the liquid discharge flow is realized.

Referring to fig. 3 and 4, a connecting disc 243 is fixedly sleeved on the outer peripheral wall of the bottom of the stirring shaft 24, a plurality of horizontal cover plates 2431 positioned at the top of the liquid discharge pipe 71 are welded on the connecting disc 243, and an elastic rubber pad 15 is also adhered to the bottom wall of each horizontal cover plate 2431. Through the rotation of (mixing) shaft 24, drive a plurality of horizontal apron 2431 and rotate around the axis of (mixing) shaft 24, when horizontal apron 2431 rotated to discharge tube 71 top, elastic rubber pad 15 was filled in the top opening part of discharge tube 71, and then stopped the outside flowing back process of cell body 2, when horizontal apron 2431 did not cover the top opening part of discharge tube 71 completely, the outside flowing back of cell body 2.

The embodiment of the application also discloses a method for improving the uniformity of the surface coating of the electronic connector, which comprises the following steps,

s1, pretreatment: removing oil substances on the surface of the electronic connector through inorganic ultrasonic waves, and removing an oxide layer on the surface of the electronic connector through microetching and squeezing;

s2, electroplating: then, the electronic connectors are driven to sequentially enter the tank body 2 for electroplating, the circulating mechanism 4 drives cooling water to circulate in the cold water inlet pipe gallery 21, the cold water outlet pipe gallery 22 and the communicating pipe gallery 23 in the electroplating process and cool the electroplating solution, the transmission mechanism 5 drives the stirring shaft 24 and the stirring blade 241 to stir the electroplating solution, the injection mechanism 6 replenishes water, high-concentration electroplating solution or pH regulator into the tank body 2, and the liquid drainage mechanism 7 keeps the liquid level in the tank body 2 balanced;

s3, post-processing: and washing and drying the electroplated electronic connector.

The implementation principle of the method and the system for improving the uniformity of the surface coating of the electronic connector in the embodiment of the application is as follows: in the process of electroplating the electronic connector, the circulating water pump 41 drives the cooling water of the cold water tank 3 to circulate along the water inlet main pipe 411, the cold water inlet pipe gallery 21, the cold water outlet pipe gallery 22, the communication pipe gallery 23 and the water outlet main pipe 31, and cools the electroplating solution in the tank body 2, so that the effect of inhibiting the continuous temperature rise of the electroplating solution is realized, and meanwhile, the cooling water impacts the driving blade 52 to drive the driving disc, the stirring shaft 24 and the stirring blade to rotate and stir the electroplating solution in the tank body 2;

meanwhile, the stirring shaft 24 drives the driving bevel gear 242 to rotate, and drives the main guide roller 81 and the first auxiliary guide roller 82 to rotate through the meshing transmission between the driving bevel gear 242 and the driven bevel gear 9, and then drives the second auxiliary guide roller 83 to rotate through the meshing transmission between the synchronizing gear 26 and the transmission gear 10, so that the speed difference between the main guide roller 81, the first auxiliary guide roller 82 and the second auxiliary guide roller 83 and the electronic connector can be reduced, the friction on the electronic connector and a surface coating thereof can be reduced, the movement track length of the electronic connector in the tank body 2 can be increased, and the electronic connector is fully contacted with the electroplating solution;

meanwhile, the stirring shaft 24 drives the intermittent disc 121 to synchronously rotate until the driving pin 122 rotates between the two transmission pieces 123 and abuts against the transmission pieces 123, the transmission pieces 123 are pushed to drive the blocking disc 111 to rotate around the driven shaft 11, so that the blocking piece 1111 is separated from the opening at the bottom of the injection tube 62, until the driving pin 122 leaves between the two transmission pieces 123, the blocking piece 1111 blocks the opening at the bottom of the injection tube 62, the blocking disc 111 is driven to rotate again after the driving pin 122 rotates around the stirring shaft 24 for one circle, the above operation is repeated, and water, high-concentration solution or pH regulator is slowly added into the tank body 2; according to the data change of the detection sensor 25, the output shaft of the detection sensor is driven to slowly rotate through the gear box 141, and the two hinge rods 1321 synchronously rotate and rotate around opposite directions through the meshing transmission among the driving gear 142, the first driven gear 143 and the second driven gear 144, so that the tops of the two adjusting plates 132 are close to or far away from each other, the size of a gap between the two adjusting plates 132 is adjusted, and the flow of water, high-concentration solution or pH regulator is changed;

meanwhile, the stirring shaft 24 drives the connecting disc 243 and the horizontal cover plate 2431 to rotate until the horizontal cover plate 2431 covers the top opening of the liquid discharge pipe 71, the elastic rubber pad 15 is filled in the top opening of the liquid discharge pipe 71, so that the outward liquid discharge process of the tank body 2 is stopped, and when the horizontal cover plate 2431 does not completely cover the top opening of the liquid discharge pipe 71, the tank body 2 discharges liquid outwards; according to the data change of the liquid level of the detection sensor 25, the driving cylinder 722 is used for controlling the movement distance of the piston rod along the horizontal direction, so that the degree of the throttling plate 721 covering the liquid discharge hole is changed, and the liquid discharge flow is changed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.