Preparation method and preparation device of acidic copper plating additive

Abstract

The invention belongs to the technical field of additive preparation, and particularly relates to an acid copper plating additive preparation method and device.The preparation device comprises a base frame, a stirring barrel and a cover are arranged at the upper end of the base frame, by arranging a containing frame and a barrier plate, when an acid copper plating additive is prepared, an abutting block is started, and the stirring barrel and the cover are sealed; when the steel ball falls into the first storage cavity, the abutting block moves downwards, the abutting block drives the pushing block to move downwards together, the pushing block makes contact with the steel ball at the topmost end and drives the steel ball to move in the sliding groove, the steel ball falls into a falling groove close to one end of the first storage cavity and makes contact with a falling platform, and the steel ball falls into the falling platform through pressure caused by the steel ball. When the mixing drum is in use, a sealing door at the lower end can be opened, so that a grain refiner is automatically poured out, and when a brightener, a leveling agent and a surfactant need to be added again, raw materials in corresponding cavities can be sequentially added into the mixing drum only by starting an abutting block.

Description

Technical Field

[0001] The invention belongs to the technical field of additive preparation, in particular to a method and a device for preparing an acid copper plating additive. Background Art

[0002] Acid copper plating additives mainly act in acid copper plating solutions. These additives can improve the quality of the coating and increase electroplating efficiency. The preparation of acid copper plating additives is generally made of three types of additives, including brighteners, levelers and surfactants. Through reasonable formulations and preparation processes, acid copper plating additives with excellent performance can be obtained, providing strong support for the electroplating process.

[0003] A patent application with publication number CN111088509A discloses an acidic copper plating additive and a preparation method thereof, which is made of the following raw materials in parts by weight: a main complex, an auxiliary complex, a surfactant and other additives, wherein the main complex is sodium polydisulfide propanesulfonate. The acidic copper plating additive of the present invention can greatly improve the coating adhesion of the copper-plated product, significantly improve the corrosion resistance, improve the glossiness, and make the surface smooth and bright.

[0004] There are still some problems in the actual application of the above scheme. When preparing the above acid copper plating additive, the raw materials of the acid copper plating additive are weighed separately according to the calculation results, and then the spare raw materials are mixed with the basic plating solution respectively, and finally the acid copper plating additive is made. When each raw material is added to the basic plating solution, it is necessary to follow the order of addition, so that a better quality acid copper plating additive can be prepared. However, when each raw material is stirred with the basic plating solution respectively, it is necessary to ensure that a certain area above the stirring drum is closed to prevent impurities in the air from entering the inside of the stirring drum and affecting the basic plating solution. This makes it very difficult to add subsequent raw materials. Secondly, if the raw materials are not added in time during the preparation process, it may cause unstable performance of the plating solution, which ultimately affects the uniformity and glossiness of the coating.

[0005] To this end, the present invention provides a method and a device for preparing an acid copper plating additive. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the acid copper plating additive preparation device described in the present invention comprises a base frame, a stirring drum and a cover are provided at the upper end of the base frame, a stirring structure is provided at the upper end of the stirring drum, and an adjustment structure is provided on the surface of the stirring drum; the stirring structure comprises: a stirring knife, the stirring knife is rotatably connected to the inside of the stirring drum; the adjustment structure comprises: a baffle plate, the baffle plate is arranged on the side wall of the stirring drum; a containing frame, the containing frame is arranged on one side of the baffle plate, and the containing frame is connected to the stirring drum, and a first storage chamber, a second storage chamber, a third storage chamber and a fourth storage chamber are arranged inside the containing frame; a liquid outlet, the first storage chamber, the second storage chamber, the third storage chamber and the fourth storage chamber are all provided with a liquid outlet at one end close to the baffle plate; a drop groove, a plurality of the drop grooves are arranged inside the baffle plate, and the position of each drop groove corresponds to the liquid outlet; a sealing door, the sealing door is slidably connected to the inside of the drop groove.

[0008] Preferably, the stirring structure also includes: a driving motor, which is arranged at the upper end of the stirring drum and passes through the cover; a rotating shaft, which is arranged at the lower end of the driving motor and is connected to the stirring blade; a connecting arm, which is arranged on the arc surface of the rotating shaft; a connecting ring, which is arranged on the arc surface of the rotating shaft; a rotating shaft, which is arranged inside the connecting ring, and the surface of the rotating shaft is rotatably connected to the stirring blade; the adjusting structure also includes: a slide groove, which is opened inside the blocking plate, and the falling groove is opened inside the slide groove, and the direction of counterclockwise rotation along the slide groove is Towards the end of the sliding groove, the diameter of the drop groove gradually increases; steel balls, several of the steel balls are slidably connected to the inside of the sliding groove, and the diameter of the steel balls decreases from top to bottom; a lifting block, the lifting block is arranged at the lower end of the steel ball; abutment spring, the abutment spring is arranged at the lower end of the lifting block; a dropping platform, the dropping platform is slidably connected to the inside of the dropping groove, and the dropping platform is connected to the sealing door; a tension spring, the tension spring is arranged at the upper end of the sealing door; an abutment block, the abutment block is slidably connected to the inside of the connecting arm; a pushing block, the pushing block is connected to the abutment block, and the pushing block contacts the steel ball after work.

[0009] Preferably, a sliding bar is provided on the inner wall of the blocking plate, a sliding rail is provided on the outer wall of the mixing drum, and the sliding bar slides on the inner wall of the sliding rail.

[0010] Preferably, a limiting rubber is provided on one end of the inner wall of the slide groove close to the steel ball, and the limiting rubber is in contact with the steel ball.

[0011] Preferably, an auxiliary stop block is provided at the upper end of the mixing drum, and the pushing block contacts the auxiliary stop block when working.

[0012] Preferably, an auxiliary slope is provided on one end of the inner wall of the mixing drum close to the liquid outlet.

[0013] Preferably, a return spring is provided at the upper end of the pushing block, a connecting rod is provided at the upper end of the return spring, and the connecting rod is slidably connected to the inside of the connecting arm, a pressing spring is provided on the surface of the abutment block, a clamping block is provided at the end of the pressing spring away from the abutment block, an upper clamping groove and a lower clamping groove are provided inside the connecting arm, and the clamping block is in contact with the upper clamping groove in an initial state, and in contact with the lower clamping groove when working.

[0014] Preferably, the upper end of the containing frame is rotatably connected to a sealing cover, a slot is provided on the surface of the sealing cover, a fixing buckle is clamped on the inner wall of the slot, a stirring shaft is rotatably connected to the inner wall of the fixing buckle, and the stirring shaft is rotatably connected to the inside of the sealing cover, a connecting gear is provided at the upper end of the stirring shaft, an abutment rack is provided at one end of the connecting arm close to the connecting rod, and the abutment rack is in contact with the connecting gear, a coil spring is provided at the lower end of the stirring shaft, a stirring sheet is connected to one end of the coil spring, and the stirring sheet is parallel to the bottom of the containing frame in an initial state.

[0015] A method for preparing an acid copper plating additive, the method adopts the above-mentioned device for preparing an acid copper plating additive, and comprises the following steps:

[0016] Step 1: Raw material preparation: prepare the basic plating solution, grain refiner, leveler, brightener and surfactant, and pour the basic plating solution into the mixing drum, and pour the grain refiner, brightener, leveler and surfactant into different cavities in the containing frame in sequence;

[0017] Step 2: transferring the grain refiner into a mixing drum, and stirring by a stirring tool to obtain a first mixture;

[0018] Step 3: transferring the leveling agent into a mixing drum and mixing it with the first mixture to obtain a second mixture;

[0019] Step 4: transferring the brightener to a mixing drum and stirring it with the second mixture to obtain a third mixture;

[0020] Step 5: The surfactant is transferred to a mixing drum and stirred with the third mixture to obtain an acidic copper plating additive;

[0021] Step 6: Collect and process. Rotate the blocking plate to the end away from the containing frame, remove the containing frame, and collect the acid copper plating additive inside the mixing drum.

[0022] Preferably, the base plating solution in step one is made of copper salt and acid, the concentrations of grain refiner, leveler and brightener in the base plating solution are all 30 mg / L, and the concentration of surfactant in the base plating solution is 60 mg / L.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The method and device for preparing an acid copper plating additive of the present invention provide a containing frame and a blocking plate. When preparing the acid copper plating additive, the basic plating solution is first placed in the mixing drum, and then the cover under the driving motor is moved downward so that a certain area of ​​the top of the mixing drum can be covered. Then the driving motor is started, and the driving motor drives the mixing blade to rotate. During the rotation, the abutment block is started, and the abutment block drives the push block to move downward. Since the abutment block is connected to the mixing blade, the push block will contact the uppermost part of the slide groove during the rotation. The steel ball contacts and drives the steel ball to move inside the slide groove, and finally the steel ball will be brought to the inside of the drop groove corresponding to the steel ball, thereby contacting the drop platform and opening the sealing door, so that the prepared raw materials inside the fourth storage chamber can automatically enter the interior of the mixing drum, and in this process, the interior of the mixing drum will not have a large amount of contact with the outside, and then during the rotation of the abutment block, the abutment block will contact the auxiliary abutment block and automatically reset. If other raw materials and medicines need to be added again, only the abutment block needs to be started again, and other raw materials can be entered into the interior of the mixing drum in turn, which is very convenient.

[0025] 2. The method and device for preparing an acid copper plating additive described in the present invention, by setting the stirring blade to rotate on the surface of the connecting ring, can drive the stirring blade to expand through the rotating force of the rotating shaft when stirring the basic plating solution and other raw materials, so that the basic plating solution and the raw materials can be fully mixed to ensure the uniform distribution of the various components, and the inclined design of the stirring blade can also increase the eddy current intensity during stirring, generate a larger centripetal force, thereby forming a large number of eddies that can quickly mix the materials evenly.

[0026] 3. By setting a sealing cover, when it is necessary to add raw materials inside the containing frame, the abutting rack at one end of the connecting arm will drive the connecting gear to rotate, so that the stirring blade can stir the raw materials, so that the raw materials maintain fluidity while waiting to be added, and when the acid copper plating additive is prepared and the stirring shaft needs to be pulled out, the stirring blade will retract into the inside of the stirring shaft, so as not to affect the upward movement of the stirring shaft. After the stirring shaft is pulled out, the coil spring will release the elastic force and reset the stirring blade to be parallel to the bottom of the containing frame. This snap-on connection also makes subsequent cleaning work more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0029] Figure 2 is a position diagram of the mixing drum and the baffle plate of the present invention;

[0030] Figure 3 is a three-dimensional diagram of the mixing drum and the baffle plate of the present invention;

[0031] Figure 4 is a three-dimensional diagram of a blocking plate of the present invention;

[0032] Figure 5 yes Figure 4 A partial enlarged view of the middle part;

[0033] Figure 6 It is a position diagram of the drop chute and the chute of the present invention;

[0034] Figure 7 It is a position diagram of the steel ball and the drop groove of the present invention;

[0035] Figure 8 It is a connection diagram of the connecting arm and the abutment block of the present invention;

[0036] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0037] Fig.10 is a stereogram of the stirring structure of the present invention;

[0038] Fig.11 yes Fig.10 A partial enlarged view of point C in the middle;

[0039] Fig.12 It is a position diagram of the stirring shaft and the abutment rack of the present invention;

[0040] Fig.13 is a stereogram of the stirring shaft of the present invention;

[0041] In the figure, 1, base frame; 2, stirring structure; 21, connecting arm; 22, driving motor; 23, rotating shaft; 24, stirring blade; 25, connecting ring; 26, rotating shaft; 3, stirring drum; 4, adjusting structure; 401, blocking plate; 402, abutment block; 403, containing frame; 404, sliding bar; 405, slide groove; 406, sliding rail; 407, fourth storage chamber; 408, third storage chamber; 409, second storage chamber; 410, first storage chamber; 411, liquid outlet; 412, auxiliary abutment block; 413, drop groove; 414 , limit rubber; 415, lifting block; 416, abutment spring; 417, steel ball; 418, auxiliary slope; 419, falling platform; 420, tension spring; 421, sealing door; 422, connecting rod; 423, pushing block; 424, reset spring; 425, lower clamping groove; 426, upper clamping groove; 427, clamping block; 428, pressing spring; 429, sealing cover; 430, stirring shaft; 431, fixing buckle; 432, clamping groove; 433, abutment rack; 434, connecting gear; 435, stirring blade; 436, coil spring. DETAILED DESCRIPTION

[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0043] Embodiment 1

[0044] like Figures 1 to 13 As shown, an acid copper plating additive preparation device according to an embodiment of the present invention comprises a base frame 1, a stirring drum 3 and a cover are arranged at the upper end of the base frame 1, a stirring structure 2 is arranged at the upper end of the stirring drum 3, and an adjusting structure 4 is arranged on the surface of the stirring drum 3; the stirring structure 2 comprises: a stirring blade 24, the stirring blade 24 is rotatably connected to the inside of the stirring drum 3; the adjusting structure 4 comprises: a blocking plate 401, the blocking plate 401 is arranged on the side wall of the stirring drum 3; a containing frame 403, the containing frame 403 is arranged on one side of the blocking plate 401, and the containing frame 403 is arranged on the upper end of the stirring drum 3. 03 is connected to the mixing drum 3, and the interior of the containing frame 403 is provided with a first storage chamber 410, a second storage chamber 409, a third storage chamber 408 and a fourth storage chamber 407; a liquid outlet 411, and the first storage chamber 410, the second storage chamber 409, the third storage chamber 408 and the fourth storage chamber 407 are all provided with a liquid outlet 411 at one end close to the blocking plate 401; a drop groove 413, and a plurality of drop grooves 413 are provided inside the blocking plate 401, and the position of each drop groove 413 corresponds to the liquid outlet 411;

[0045] The sealing door 421 is slidably connected to the inside of the drop groove 413 .

[0046] Specifically, in the scheme, an acid copper plating additive preparation device, when preparing the acid copper plating additive, firstly, it is necessary to prepare the raw materials in a certain proportion, and the specific raw materials include: a basic plating solution, a grain refiner, a brightener, a leveler and a surfactant, the grain refiner is sodium phenyl polydisulfide propane sulfonate, the brightener is polyethylene imine alkyl salt, the leveler is hexylbenzylamine salt, and the surfactant is polyethylene glycol. Then, the basic plating solution is poured into the interior of the mixing drum 3, and the basic plating solution is mainly composed of copper salt, acid and other components. Then, the grain refiner is poured into the first storage chamber 410, the leveler is poured into the second storage chamber 409, the brightener is poured into the third storage chamber 408, and the surfactant is poured into the fourth storage chamber 407. When the liquid outlet 411 at one end of each raw material cavity is blocked by the sealing door 421, the raw material will not enter the interior of the mixing drum 3. At this time, the lifting mechanism above the drive motor 22 is started, and the drive motor 22 will be driven by the lifting mechanism to move downward, and when the drive motor 22 moves downward, it will drive the cover to move together, thereby covering the upper end of the mixing drum 3, thereby preventing impurities in the air from entering the interior of the mixing drum 3 and affecting the purity of the basic plating solution. Subsequently, the drive motor 22 is started, and the drive motor 22 will drive the stirring blade 24 to rotate and stir the basic plating solution, but the cover does not rotate with the drive motor 22. This stirring can reduce the concentration polarization phenomenon in the basic plating solution and make the copper ions and other components in the basic plating solution more uniform. The first storage chamber 408 is used to store the first and second storage chambers 409 and 409 respectively, and the first storage chamber 408 is used to store the first and second storage chambers 409 and 409 respectively. The first storage chamber 408 is used to store the first and second storage chambers 409 and 409 respectively, and the first and second storage chambers 408 are used to store the first and second storage chambers 408 and 409 respectively. The first storage chamber 408 is used to store the first and second storage chambers 408 and 409 respectively, and the first and second storage chambers 408 are used to store the first and second storage chambers 408 and 409 respectively. The brightener can form a stable complex with copper ions during the electroplating process, thereby improving the brightness of the coating. After stirring for a period of time, the sealing door 421 near one end of the fourth storage chamber 407 is started, and the surfactant can be automatically added to the interior of the mixing drum 3. The surfactant plays a role of dispersing, stabilizing and wetting in the plating solution. At this time, the addition of all raw materials is completed, and only sufficient stirring is required. The holding frame 403 of the device can store the required various raw materials in the order of addition in each cavity in the holding frame 403 before stirring, and when the raw materials are added, the upper end of the mixing drum 3 also maintains a certain degree of sealing, which can greatly reduce the probability of impurities entering the mixing drum 3 during stirring.

[0047] like Figures 1 to 11 As shown, the stirring structure 2 also includes: a driving motor 22, which is arranged at the upper end of the stirring drum 3, and the driving motor 22 passes through the cover; a rotating shaft 23, which is arranged at the lower end of the driving motor 22, and the rotating shaft 23 is connected to the stirring blade 24; a connecting arm 21, which is arranged on the arc surface of the rotating shaft 23; a connecting ring 25, which is arranged on the arc surface of the rotating shaft 23; a rotating shaft 26, which is arranged inside the connecting ring 25, and the surface of the rotating shaft 26 is rotatably connected with the stirring blade 24; the adjusting structure 4 also includes: a sliding groove 405, which is opened inside the blocking plate 401, and a dropping groove 413 is opened inside the sliding groove 405, and the diameter of the dropping groove 413 is reduced along the counterclockwise rotation direction of the sliding groove 405. Gradually increases; steel ball 417, several steel balls 417 are slidably connected to the inside of the slide groove 405, and the diameter of the steel ball 417 decreases from top to bottom; lifting block 415, the lifting block 415 is arranged at the lower end of the steel ball 417; abutment spring 416, the abutment spring 416 is arranged at the lower end of the lifting block 415; dropping platform 419, the dropping platform 419 is slidably connected to the inside of the dropping groove 413, and the dropping platform 419 is connected to the sealing door 421; tension spring 420, the tension spring 420 is arranged at the upper end of the sealing door 421; abutment block 402, the abutment block 402 is slidably connected to the inside of the connecting arm 21; pushing block 423, the pushing block 423 is connected to the abutment block 402, and the pushing block 423 contacts with the steel ball 417 after work.

[0048] Specifically, when stirring is needed, the driving motor 22 is started, and the driving motor 22 will drive the rotating shaft 23 to rotate, and the rotating shaft 23 will drive the stirring blade 24 to rotate together with the connecting arm 21, and the stirring blade 24 is set to rotate on the surface of the rotating shaft 26. When the stirring blade 24 is stirring, the rotating force of the rotating shaft 23 can drive the stirring blade 24 to unfold, so that the basic plating solution and the raw material can be fully mixed to ensure the uniform distribution of the various components, and the inclined design of the stirring blade 24 can also increase the eddy current intensity during stirring, generate a large centripetal force, thereby forming a large number of eddy currents that can quickly mix the materials evenly. Subsequently, when the raw materials need to be added, the abutment block 402 is started, the abutment block 402 will move downward, and the abutment block 402 will drive the pushing block 423 to move downward together. At this time, the pushing block 423 will move to the inside of the slide groove 405, and the pushing block 423 will be driven by the connecting arm 21 to rotate together. During the rotation process , the pushing block 423 will contact the topmost steel ball 417 and drive the steel ball 417 to move inside the chute 405. Since the diameter of the steel ball 417 matches the diameter of the drop groove 413 near the end of the first storage chamber 410, and the diameter of the drop groove 413 gradually increases along the counterclockwise rotation direction of the chute 405, the steel ball 417 will fall into the drop groove 413 near the end of the first storage chamber 410 and contact the drop platform 419. The pressure generated will open the sealing door 421 at the lower end, so that the grain refiner can be automatically poured out. Then, due to the release of the elastic force of the abutment spring 416, several steel balls 417 will continue to push upward, so that there is another steel ball 417 at the same level with the slide groove 405. Then, the abutment block 402 is started again to reset it. When it is necessary to add raw materials again, it only needs to start the abutment block 402 to add the raw materials in other cavities into the mixing drum 3 in sequence.

[0049] like Figures 1 to 3 As shown, a sliding bar 404 is provided on the inner wall of the blocking plate 401 , a sliding rail 406 is provided on the outer wall of the mixing drum 3 , and the sliding bar 404 slides on the inner wall of the sliding rail 406 .

[0050] Specifically, by setting the blocking plate 401 to be able to slide on the outer wall of the mixing drum 3, when the acid copper plating additive is prepared and the inside of the containing frame 403 is cleaned, the blocking plate 401 can be rotated away from the containing frame 403 to expose the liquid outlet 411, which makes it easier to clean the containing frame 403.

[0051] like Figure 5 As shown, a limiting rubber 414 is provided at one end of the inner wall of the slide groove 405 close to the steel ball 417 , and the limiting rubber 414 is in contact with the steel ball 417 .

[0052] Specifically, by providing the limiting rubber 414 , when the abutting spring 416 pushes the steel ball 417 out, the steel ball 417 will not fall out of the slide groove 405 , and the material of the limiting rubber 414 will not affect the movement of the pushing block 423 .

[0053] like Figure 3 As shown, an auxiliary stop block 412 is provided at the upper end of the mixing drum 3, and the push block 423 contacts the auxiliary stop block 412 when working.

[0054] Specifically, by setting the auxiliary abutment block 412, after the pushing block 423 pushes the steel ball 417 into the corresponding drop groove 413, the abutment block 402 connected to the pushing block 423 will contact the auxiliary abutment block 412. Since the contact surface is an inclined surface, the abutment block 402 at this time will drive the pushing block 423 to move upward to achieve automatic resetting.

[0055] like Figure 3 As shown, an auxiliary slope 418 is provided on one end of the inner wall of the mixing drum 3 close to the liquid outlet 411 .

[0056] Specifically, by providing the auxiliary slope 418 , after the liquid outlet 411 is opened, the raw materials can quickly flow into the interior of the mixing drum 3 from the auxiliary slope 418 , and the phenomenon of incomplete transfer of the raw materials can be avoided.

[0057] like Figures 8 to 9 As shown, a return spring 424 is provided at the upper end of the push block 423, a connecting rod 422 is provided at the upper end of the return spring 424, and the connecting rod 422 is slidably connected to the inside of the connecting arm 21, a pressing spring 428 is provided on the surface of the abutment block 402, and a clamping block 427 is provided at the end of the pressing spring 428 away from the abutment block 402, an upper clamping groove 426 and a lower clamping groove 425 are provided inside the connecting arm 21, and the clamping block 427 is in contact with the upper clamping groove 426 in the initial state, and the clamping block 427 is in contact with the lower clamping groove 425 when working.

[0058] Specifically, by setting the clamping block 427, in the initial state, the clamping block 427 will be clamped in the upper clamping groove 426 to be fixed. When raw materials need to be added, the abutment block 402 will move downward. At this time, the pressing spring 428 will also shrink and make the clamping block 427 separate from the upper clamping groove 426. Then, when the clamping block 427 moves to be flush with the lower clamping groove 425, the pressing spring 428 will release the elastic force and finally be clamped in the lower clamping groove 425 to be fixed. At this time, the pushing block 423 also moves to contact the steel ball 417, and the reset spring 424 at the upper end of the pushing block 423 will also make the pushing block 423 have a certain elastic force, thereby reducing the friction between the pushing block 423 and the slide groove 405.

[0059] like Figure 12 to Figure 13As shown, the upper end of the containing frame 403 is rotatably connected to a sealing cover 429, a slot 432 is provided on the surface of the sealing cover 429, a fixing buckle 431 is clamped on the inner wall of the slot 432, a stirring shaft 430 is rotatably connected to the inner wall of the fixing buckle 431, and the stirring shaft 430 is rotatably connected to the inside of the sealing cover 429, a connecting gear 434 is provided at the upper end of the stirring shaft 430, an abutting rack 433 is provided at one end of the connecting arm 21 close to the connecting rod 422, and the abutting rack 433 is in contact with the connecting gear 434, a coil spring 436 is provided at the lower end of the stirring shaft 430, a stirring sheet 435 is connected to one end of the coil spring 436, and the stirring sheet 435 is parallel to the bottom of the containing frame 403 in the initial state.

[0060] Specifically, by setting the sealing cover 429, when it is necessary to add raw materials inside the containing frame 403, the sealing cover 429 is first rotated, and the sealing cover 429 will be rotated to be perpendicular to the upper end of the containing frame 403, so that the upper end of the containing frame 403 can be exposed. Then, after the raw materials are added, the sealing cover 429 is covered, and the fixing buckle 431 is stuck in the inside of the card slot 432. When the fixing buckle 431 is stuck in the inside of the card slot 432, the stirring shaft 430 will also slide in the sealing cover 429. At this time, when the basic plating solution is stirred, the rotating shaft 23 will drive the connecting arm 21 to rotate together, and the abutting rack 433 at one end of the connecting arm 21 will contact the connecting gear 430. 34 contacts each other and drives the connecting gear 434 to rotate, so that the stirring blade 435 can stir the raw materials, so that the raw materials maintain fluidity while waiting to be added, and when the acid copper plating additive is prepared and the stirring shaft 430 needs to be pulled out, the extended stirring blade 435 will contact the sealing cover 429. At this time, the stirring blade 435 will be retracted into the interior of the stirring shaft 430, so as not to affect the upward movement of the stirring shaft 430. Subsequently, after the stirring shaft 430 is pulled out, the coil spring 436 will release the elastic force and will reset the stirring blade 435 to be parallel to the bottom of the containing frame 403. This snap-on connection also makes subsequent cleaning work more convenient.

[0061] Embodiment 2

[0062] A method for preparing an acid copper plating additive, the method adopts the above-mentioned device for preparing an acid copper plating additive, and comprises the following steps:

[0063] Step 1: Raw material preparation: prepare a basic plating solution, a grain refiner, a leveler, a brightener and a surfactant, and pour the basic plating solution into the mixing drum 3, and pour the grain refiner, the brightener, the leveler and the surfactant into different cavities in the containing frame 403 in sequence;

[0064] Step 2: transferring the grain refiner into the mixing drum 3 and stirring it by a stirring tool to obtain a first mixture;

[0065] Step 3: transferring the leveling agent to the mixing drum 3 and mixing it with the first mixture to obtain a second mixture;

[0066] Step 4: transferring the brightener to the mixing drum 3 and mixing it with the second mixture to obtain a third mixture;

[0067] Step 5: The surfactant is transferred to the mixing drum 3 and stirred with the third mixture to obtain an acidic copper plating additive;

[0068] Step 6: Collection and processing: rotate the blocking plate 401 to the end away from the containing frame 403, remove the containing frame 403, and collect the acid copper plating additive inside the mixing drum 3.

[0069] The basic plating solution in step 1 is made of copper salt and acid, the concentrations of grain refiner, leveler and brightener in the basic plating solution are all 30 mg / L, and the concentration of surfactant in the basic plating solution is 60 mg / L.

[0070] Working principle: When preparing the acid copper plating additive, firstly, the raw materials need to be prepared in a certain proportion. The specific raw materials include: basic plating solution, grain refiner, brightener, leveler, surfactant. The grain refiner is sodium phenyl polydisulfide propane sulfonate, the brightener is polyethylene imine alkyl salt, the leveler is hexyl benzylamine salt, and the surfactant is polyethylene glycol. Then, pour the basic plating solution into the inside of the mixing drum 3. The basic plating solution is mainly composed of copper salt, acid and other components. Then, pour the grain refiner into the first storage chamber 410, the leveler into the second storage chamber 409, the brightener into the third storage chamber 408, and the surfactant into the fourth storage chamber 407. At this time, each raw material The liquid outlet 411 at one end of the cavity is blocked by the sealing door 421, so the raw material will not enter the interior of the mixing drum 3. At this time, the lifting mechanism above the drive motor 22 is started, and the drive motor 22 will be driven by the lifting mechanism to move downward, and when the drive motor 22 moves downward, it will drive the cover to move together, so as to cover the upper end of the mixing drum 3, so as to prevent impurities in the air from entering the interior of the mixing drum 3 and affecting the purity of the basic plating solution. Subsequently, the drive motor 22 is started, and the drive motor 22 will drive the stirring blade 24 to rotate and stir the basic plating solution, but the cover will not rotate with the drive motor 22. This stirring can reduce the concentration polarization phenomenon in the basic plating solution, so that the copper ions and The other components are more evenly distributed. Then, when it is necessary to add the grain refiner, the abutment block 402 is started, the abutment block 402 will move downward, and the abutment block 402 will drive the push block 423 to move downward together. At this time, the push block 423 will move to the inside of the slide groove 405, and the push block 423 will be driven by the connecting arm 21 to rotate together. During the rotation process, the push block 423 will contact the top steel ball 417 and drive the steel ball 417 to move inside the slide groove 405. Since the diameter of the steel ball 417 matches the diameter of the drop groove 413 at one end of the first storage chamber 410, and the diameter of the drop groove 413 gradually increases along the counterclockwise rotation direction of the slide groove 405. The steel ball 417 is large, so it will fall into the drop groove 413 near one end of the first storage chamber 410 and contact the drop platform 419. The pressure caused by the steel ball 417 will open the sealing door 421 at the lower end, so that the grain refiner can be automatically poured out. Then, due to the release of the elastic force of the abutment spring 416, several steel balls 417 will continue to push upward, so that there is another steel ball 417 at the position flush with the slide groove 405. Then, the abutment block 402 is started again to reset it. When it is necessary to add the brightener, leveling agent and surfactant again, it is only necessary to start the abutment block 402 to add the raw materials in the corresponding cavity into the interior of the mixing drum 3 in turn, which is very convenient.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for preparing an acid copper plating additive, characterized in that: It comprises a base frame (1), the upper end of the base frame (1) is provided with a mixing drum (3) and a cover, the upper end of the mixing drum (3) is provided with a mixing structure (2), and the surface of the mixing drum (3) is provided with an adjustment structure (4); The stirring structure (2) comprises a stirring blade (24), and the stirring blade (24) is rotatably connected to the inside of the stirring drum (3); The regulating structure (4) comprises: a blocking plate (401), wherein the blocking plate (401) is arranged on a side wall of the mixing drum (3); a containing frame (403), the containing frame (403) being arranged on one side of the blocking plate (401), the containing frame (403) being connected to the mixing drum (3), and the containing frame (403) being provided with a first storage chamber (410), a second storage chamber (409), a third storage chamber (408) and a fourth storage chamber (407); A liquid outlet (411), wherein the first storage chamber (410), the second storage chamber (409), the third storage chamber (408) and the fourth storage chamber (407) are all provided with a liquid outlet (411) at one end close to the blocking plate (401); A drop groove (413), wherein a plurality of the drop grooves (413) are arranged inside the blocking plate (401), and the position of each of the drop grooves (413) corresponds to the liquid outlet (411); A sealing door (421), wherein the sealing door (421) is slidably connected to the inside of the drop groove (413).

2. The device for preparing an acid copper plating additive according to claim 1, characterized in that: The stirring structure (2) further comprises: A driving motor (22), wherein the driving motor (22) is disposed at the upper end of the mixing drum (3), and the driving motor (22) passes through the cover; A rotating shaft (23), the rotating shaft (23) being arranged at the lower end of the driving motor (22), and the rotating shaft (23) being connected to the stirring blade (24); A connecting arm (21), wherein the connecting arm (21) is arranged on the arc surface of the rotating shaft (23); A connecting ring (25), wherein the connecting ring (25) is arranged on the arc surface of the rotating shaft (23); A rotating shaft (26), the rotating shaft (26) being arranged inside the connecting ring (25), and a stirring blade (24) being rotatably connected to the surface of the rotating shaft (26); The regulating structure (4) further comprises: A slide groove (405), wherein the slide groove (405) is provided inside the blocking plate (401), and the drop groove (413) is provided inside the slide groove (405), and the diameter of the drop groove (413) gradually increases along the counterclockwise rotation direction of the slide groove (405); Steel balls (417), a plurality of the steel balls (417) are slidably connected inside the slide groove (405), and the diameters of the steel balls (417) decrease from top to bottom; A lifting block (415), wherein the lifting block (415) is arranged at the lower end of the steel ball (417); an abutment spring (416), the abutment spring (416) being arranged at the lower end of the lifting block (415); A drop platform (419), wherein the drop platform (419) is slidably connected to the inside of the drop groove (413), and the drop platform (419) is connected to the sealing door (421); A tension spring (420), wherein the tension spring (420) is arranged at the upper end of the sealing door (421); an abutment block (402), the abutment block (402) being slidably connected inside the connecting arm (21); A pushing block (423), wherein the pushing block (423) is connected to the abutting block (402), and the pushing block (423) contacts the steel ball (417) after operation.

3. The device for preparing an acid copper plating additive according to claim 2, characterized in that: The inner wall of the blocking plate (401) is provided with a sliding bar (404), the outer wall of the mixing drum (3) is provided with a sliding rail (406), and the sliding bar (404) slides on the inner wall of the sliding rail (406).

4. The device for preparing an acid copper plating additive according to claim 2, characterized in that: A limiting rubber (414) is provided at one end of the inner wall of the slide groove (405) close to the steel ball (417), and the limiting rubber (414) is in contact with the steel ball (417).

5. The device for preparing an acid copper plating additive according to claim 3, characterized in that: An auxiliary stop block (412) is provided at the upper end of the mixing drum (3), and the pushing block (423) contacts the auxiliary stop block (412) when working.

6. The device for preparing an acid copper plating additive according to claim 5, characterized in that: An auxiliary slope (418) is provided at one end of the inner wall of the mixing drum (3) close to the liquid outlet (411).

7. The device for preparing an acid copper plating additive according to claim 5, characterized in that: The upper end of the pushing block (423) is provided with a return spring (424), the upper end of the return spring (424) is provided with a connecting rod (422), and the connecting rod (422) is slidably connected to the inside of the connecting arm (21), the surface of the abutting block (402) is provided with a pressing spring (428), and the end of the pressing spring (428) away from the abutting block (402) is provided with a clamping block (427), and an upper clamping groove (426) and a lower clamping groove (425) are provided inside the connecting arm (21), and the clamping block (427) is in contact with the upper clamping groove (426) in an initial state, and the clamping block (427) is in contact with the lower clamping groove (425) when working.

8. The device for preparing an acid copper plating additive according to claim 7, characterized in that: The upper end of the containing frame (403) is rotatably connected to a sealing cover (429), a slot (432) is provided on the surface of the sealing cover (429), a fixing buckle (431) is clamped on the inner wall of the slot (432), a stirring shaft (430) is rotatably connected to the inner wall of the fixing buckle (431), and the stirring shaft (430) is rotatably connected to the inside of the sealing cover (429), a connecting gear (434) is provided at the upper end of the stirring shaft (430), an abutting rack (433) is provided at one end of the connecting arm (21) close to the connecting rod (422), and the abutting rack (433) is in contact with the connecting gear (434), a coil spring (436) is provided at the lower end of the stirring shaft (430), one end of the coil spring (436) is connected to a stirring sheet (435), and the stirring sheet (435) is parallel to the bottom of the containing frame (403) in the initial state.

9. A method for preparing an acid copper plating additive, the method adopting an acid copper plating additive preparation device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: raw material preparation, preparing a basic plating solution, a grain refiner, a leveler, a brightener and a surfactant, and pouring the basic plating solution into the interior of the mixing drum (3), and pouring the grain refiner, the brightener, the leveler and the surfactant into different cavities in the containing frame (403) in sequence; Step 2: transferring the grain refiner into the mixing drum (3), and stirring it with a stirring tool to obtain a first mixture; Step 3: transferring the leveling agent to the mixing drum (3) and mixing it with the first mixture to obtain a second mixture; Step 4: transferring the brightener to the mixing drum (3) and mixing it with the second mixture to obtain a third mixture; Step 5: The surfactant is transferred to the mixing drum (3) and stirred with the third mixture to obtain an acidic copper plating additive; Step 6: Collection and processing: rotate the blocking plate (401) to the end away from the containing frame (403), remove the containing frame (403), and collect the acid copper plating additive inside the mixing drum (3).

10. The method for preparing an acid copper plating additive according to claim 9, characterized in that: The basic plating solution in step 1 is made of copper salt and acid, the concentrations of grain refiner, leveler and brightener in the basic plating solution are all 30 mg / L, and the concentration of surfactant in the basic plating solution is 60 mg / L.

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