CN112708922B - Electroplating stirring filter device - Google Patents
Electroplating stirring filter device Download PDFInfo
- Publication number
- CN112708922B CN112708922B CN202011622473.7A CN202011622473A CN112708922B CN 112708922 B CN112708922 B CN 112708922B CN 202011622473 A CN202011622473 A CN 202011622473A CN 112708922 B CN112708922 B CN 112708922B
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- disc
- annular groove
- rotating shaft
- piston
- electroplating
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- 238000009713 electroplating Methods 0.000 title claims abstract description 65
- 238000003756 stirring Methods 0.000 title claims abstract description 25
- 238000001914 filtration Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 239000002893 slag Substances 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 12
- 239000007779 soft material Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 15
- 239000007788 liquid Substances 0.000 abstract description 14
- 230000010287 polarization Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000007747 plating Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 239000007787 solid Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- -1 greasy dirt Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/52—Regenerating the filter material in the filter by forces created by movement of the filter element
- B01D33/54—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/801—Driving means, shaft packing systems or the like
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/06—Filtering particles other than ions
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/10—Agitating of electrolytes; Moving of racks
Abstract
The invention relates to an electroplating stirring and filtering device, which effectively solves the problems that impurities in electroplating liquid are not easy to remove and the stirring effect is poor; the technical scheme includes that the novel rotary drum comprises a drum body, wherein a first annular groove is formed in the inner wall of the drum body, a first rotating shaft is arranged on the drum body, a first disc is arranged at the lower end of the first rotating shaft, a blind hole is formed in the outer edge of the first disc, a filter screen is arranged in the blind hole, and a pressure spring is arranged between the filter screen and the blind hole; the lower end of the first rotating shaft is connected with a second rotating shaft, the lower end of the second rotating shaft is provided with a second disc, the lower end surface of the second disc is provided with a piston cylinder, a piston is arranged in the piston cylinder, the upper end of the piston is provided with a piston rod, and the upper end of the piston rod is hinged on the first disc; a wedge block is arranged in the first annular groove, and the thickness of the wedge block is increased from right to left; the invention solves the problems of difficult removal of impurities in the electroplating solution and poor stirring effect, realizes the removal of filter residues in the filter screen, avoids the filter screen from being blocked by the filter residues, realizes the self-cleaning of the filter screen, forms continuous stirring on the electroplating solution, and eliminates concentration polarization.
Description
Technical Field
The invention relates to the field of electroplating, in particular to an electroplating stirring and filtering device.
Background
Electroplating is to plate a thin layer of metal or alloy on the surface of a plating piece by utilizing the electrolysis principle, and can be used for improving the corrosion resistance, the wear resistance and the decoration of the surface of the plating piece; in the electroplating process, metal solid particles are continuously precipitated, a part of precipitated metal can form a plating layer on a workpiece to be plated, and the other part of metal solid particles which do not form the plating layer exist in the electroplating solution, and the quality of the plated part is affected by impurities contained in the electroplating solution, so that the electroplating solution is required to be filtered with impurities, precipitates and the like, and the influence on the quality of the plated part is eliminated; some electroplating processes can generate bubbles and stay on the surface of the plating layer, and other electroplating liquid concentration polarization can influence the electroplating quality, so that the bubbles can be prevented from stay on the surface of the plating layer and concentration polarization during electroplating can be eliminated by continuously stirring the electroplating liquid; the stirring mode that often uses has air stirring and mechanical stirring dual mode, wherein air stirring probably brings the pollutant such as greasy dirt, dust into plating solution, influences electroplating quality, when filtering, the manual work clear up the filter screen in the jar body, but the plating solution has toxicity, very big to the injury of human body, inconvenient clearance, closes simultaneously and filters the normal clear up that can influence electroplating, delays normal production, and mechanical stirring is in order to avoid the plating solution to rock by a wide margin, and stirring range is all less generally, and the plating solution often has the heating inhomogeneous to reduce the work efficiency of heating and electroplating, can not satisfy electroplating demand.
Disclosure of Invention
Aiming at the situation, the invention aims to solve the problems in the prior art, and the invention aims to provide an electroplating stirring filter device which can effectively solve the problems that impurities in electroplating liquid are not easy to remove and the stirring effect is poor.
The technical scheme is that the device comprises a barrel with a downward opening, wherein a first annular groove inclining leftwards is formed in the inner wall of the barrel, a first rotating shaft inclining rightwards is inserted into the upper end face of the barrel, a first disc is vertically fixed at the lower end of the first rotating shaft, and the first disc is arranged in the first annular groove and can rotate around the axis of the first annular groove; a plurality of blind holes are uniformly distributed on the circumference of the outer edge surface of the first disk, a cylindrical filter screen with an outward opening is arranged in each blind hole, the filter screen can move along the blind holes towards the direction of the first rotating shaft and reset, and a pressure spring is arranged between the bottom of the filter screen and the blind holes; the lower end surface of the first disc is provided with a plurality of first through holes which are in one-to-one correspondence with the blind holes; the lower end of the first rotating shaft is connected with a vertical second rotating shaft through a universal joint, the lower end of the second rotating shaft is fixedly provided with a horizontal second disc, the second disc can rotate in the cylinder body, piston cylinders which are in one-to-one correspondence with the blind holes are uniformly distributed on the circumference of the lower end surface of the second disc, a water inlet and a water outlet are formed in the bottom of each piston cylinder, a first one-way valve which can ensure that water in the piston cylinder can not only enter and exit is arranged at each water inlet, a second one-way valve which can ensure that water in the piston cylinder can not only enter and exit is arranged at each water outlet, and each water inlet is communicated with the corresponding first through hole through a hose which is long enough to ensure that the piston cylinder is communicated with the corresponding blind hole; a piston capable of moving up and down is arranged in each piston cylinder, a piston rod is fixed at the upper end of each piston, and the upper end of each piston rod is hinged on the lower end face of the first disc; the front side of the cylinder is inserted with a plurality of water inlet pipes communicated with the first annular groove, the left side of the cylinder is inserted with a slag discharging pipe which inclines leftwards, and the inner side end surface of the slag discharging pipe is arranged on the bottom surface of the first annular groove; the rear side in the first annular groove is fixedly provided with a wedge block arranged between the first annular groove and the first disc, the projection of the wedge block on the lower end surface of the first disc is arc-shaped, the thickness of the wedge block in the front-rear direction is gradually increased from right to left, and the left end of the wedge block is arranged behind the slag discharge pipe; when the blind holes rotate to the front side of the cylinder along with the first disc, each blind hole is communicated with a plurality of water inlet pipes one by one, when the blind holes rotate to the rear side of the cylinder along with the first disc, the openings of the filter screens are contacted with the front end surfaces of the wedge blocks, the filter screens gradually approach the first rotating shafts when rotating from right to left, the pressure springs are gradually compressed, when the filter screens rotate to the slag discharging pipe on the left side of the cylinder along with the first disc, the openings of the filter screens are separated from the front end surfaces of the wedge blocks, the pressure springs reset to push the filter screens outwards, so that filter residues are separated from the filter screens, and the outwards moving distance of the filter screens is the maximum value of the thickness of the wedge blocks.
Preferably, a second annular groove is formed in the inner wall of the cylinder body at a position corresponding to the second disc, and the second disc is arranged in the second annular groove and can rotate around the axis of the second annular groove.
Preferably, a third annular groove is formed in the outer edge surface of the first disc, and the wedge-shaped block is arranged in the third annular groove.
Preferably, a water outlet pipe is inserted into the water outlet at the bottom of each piston cylinder.
Preferably, a fourth annular groove is formed in the inner edge surface of the blind hole, a circular ring is fixed at the opening of the outer edge of the filter screen, and the circular ring is arranged in the fourth annular groove and can move along the axis of the fourth annular groove in the fourth annular groove.
Preferably, the end face of the ring arranged at one end of the outer side of the blind hole is attached to the inner edge face of the first annular groove, and the ring is made of elastic soft materials.
Preferably, the first rotating shaft is in rotating connection with the cylinder body through a bearing, and the upper end of the first rotating shaft is connected with a motor.
Preferably, the second disc is provided with second through holes corresponding to the hoses one by one, and each hose is arranged in the corresponding second through hole; the second disc is provided with third through holes corresponding to the piston rods one by one, and each piston rod is arranged in the corresponding third through hole and can move up and down.
In the invention, the filter screen gradually stores force in the process of rotating from the highest right side to the lowest left side along with the rotation of the first disc, then the filter screen contacts with the inner wall of the first annular groove through the reset of the pressure spring and forms collision, filter residues in the filter screen are removed, the filter screen is prevented from being blocked by the filter residues, the self-cleaning of the filter screen is realized, the filter screen is not required to be frequently replaced, impurities and educts in the electroplating tank can be automatically removed, and the influence of the impurities in the electroplating liquid and educts which do not form a coating on the quality of a plated part is avoided; meanwhile, liquid flow flowing from back to front is formed in the electroplating pool, continuous stirring is formed on the electroplating liquid, concentration polarization is eliminated, and the flowing liquid flow can take away bubbles retained on the surface of a plating layer, so that the influence of the bubbles on the quality of a plating piece is avoided; the solution in the electroplating tank flows forwards from the back, can drive the solid precipitated in the electroplating tank to be converged at the front side of the cylinder, quickens the removal of impurities and precipitates in the electroplating liquid, avoids dead angle formation and has good removal effect.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a cross-sectional view of A-A in fig. 2.
Fig. 4 is a partial enlarged view of B in fig. 3.
Fig. 5 is a cross-sectional view of C-C of fig. 3.
Fig. 6 is a front cross-sectional perspective view of the cylinder 1.
Fig. 7 is a perspective view of the first disk 4.
Fig. 8 is a perspective view of the second disk 10.
Fig. 9 is a perspective view of the screen 6.
Fig. 10 is a top view of the device in an operational state.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As shown in fig. 1 to 10, the invention comprises a cylinder body 1 with a downward opening, a first annular groove 2 inclining leftwards is formed on the inner wall of the cylinder body 1, a first rotating shaft 3 inclining rightwards is inserted on the upper end face of the cylinder body 1, a first disc 4 is vertically fixed at the lower end of the first rotating shaft 3, and the first disc 4 is arranged in the first annular groove 2 and can rotate around the axis of the first annular groove 2; a plurality of blind holes 5 are uniformly distributed on the circumference of the outer edge surface of the first disk 4, a cylindrical filter screen 6 with an outward opening is arranged in each blind hole 5, the filter screen 6 can move along the blind holes 5 towards the direction of the first rotating shaft 3 and reset, and a pressure spring 7 is arranged between the bottom of the filter screen 6 and the blind holes 5; the lower end surface of the first disc 4 is provided with a plurality of first through holes 8 which are in one-to-one correspondence with the blind holes 5;
the lower end of the first rotating shaft 3 is connected with a vertical second rotating shaft 9 through a universal joint, the lower end of the second rotating shaft 9 is fixedly provided with a horizontal second disc 10, the second disc 10 can rotate in the cylinder body 1, piston cylinders 11 which are in one-to-one correspondence with the blind holes 5 are uniformly distributed on the circumference of the lower end surface of the second disc 10, a water inlet and a water outlet are formed in the bottom of each piston cylinder 11, each water inlet is provided with a first one-way valve which can ensure that water in the piston cylinder 11 can not only enter and exit, each water outlet is provided with a second one-way valve which can ensure that water in the piston cylinder 11 can not enter, and each water inlet is communicated with the corresponding first through hole 8 through a hose 12 which is long enough to ensure that the piston cylinder 11 is communicated with the corresponding blind hole 5; a piston 13 capable of moving up and down is arranged in each piston cylinder 11, a piston rod 14 is fixed at the upper end of each piston 13, and the upper end of each piston rod 14 is hinged on the lower end face of the first disc 4;
the front side of the cylinder body 1 is inserted with a plurality of water inlet pipes 15 communicated with the first annular groove 2, the left side of the cylinder body 1 is inserted with a slag discharging pipe 16 inclining leftwards, and the inner side end surface of the slag discharging pipe 16 is arranged on the bottom surface of the first annular groove 2; a wedge block 17 arranged between the first annular groove 2 and the first disc 4 is fixed at the rear side in the first annular groove 2, the projection of the wedge block 17 on the lower end surface of the first disc 4 is arc-shaped, the thickness of the wedge block 17 in the front-rear direction is gradually increased from right to left, and the left end of the wedge block 17 is arranged at the rear of the slag discharging pipe 16; when the blind holes 5 rotate to the front side of the cylinder body 1 along with the first disc 4, each blind hole 5 is communicated with a plurality of water inlet pipes 15 one by one, when the blind holes 5 rotate to the rear side of the cylinder body 1 along with the first disc 4, the openings of the filter screens 6 are in contact with the front end surfaces of the wedge-shaped blocks 17, the filter screens 6 gradually approach the first rotating shaft 3 when rotating from right to left, the pressure springs 7 are gradually compressed, when the filter screens 6 rotate to the slag discharge pipe 16 on the left side of the cylinder body 1 along with the first disc 4, the openings of the filter screens 6 are separated from the front end surfaces of the wedge-shaped blocks 17, the pressure springs 7 reset to push the filter screens 6 outwards, filter residues are separated from the filter screens 6, and the outwards moving distance of the filter screens 6 is the maximum value of the thickness of the wedge-shaped blocks 17.
A second annular groove 18 is formed in the inner wall of the cylinder 1 at a position corresponding to the second disc 10, and the second disc 10 is placed in the second annular groove 18 and can rotate around the axis of the second annular groove 18.
The outer edge surface of the first disc 4 is provided with a third annular groove 19, and the wedge-shaped block 17 is arranged in the third annular groove 19.
The water outlet at the bottom of each piston cylinder 11 is inserted with a water outlet pipe 20.
The orifices of the water inlet pipes 15 are arranged at the bottom of the electroplating pool, and the intervals among the water inlet pipes 15 are smaller; because the impurities and the educts in the electroplating pool are deposited at the bottom of the electroplating pool, the pipe orifice of the water inlet pipe 15 is arranged at the bottom of the electroplating pool, so that the impurities and the educts are easier to extract, the interval between the water inlet pipes 15 is smaller, and the piston rod 14 is prevented from being broken due to overlarge negative pressure formed in the piston cylinder 11 when the blind hole 5 is arranged between the two water inlet pipes 15.
The inner edge surface of the blind hole 5 is provided with a fourth annular groove 21, an opening at the outer edge of the filter screen 6 is fixedly provided with a circular ring 22, and the circular ring 22 is arranged in the fourth annular groove 21 and can move along the axis of the fourth annular groove 21 in the fourth annular groove 21.
The end face of the ring 22, which is arranged at one end of the outer side of the blind hole 5, is attached to the inner edge face of the first annular groove 2, and the ring 22 is made of elastic soft materials; can form a closed space in the blind hole 5, is favorable for forming negative pressure in the blind hole 5, and enables solution to enter the blind hole 5 through the water inlet pipe 15.
The first rotating shaft 3 is in rotating connection with the cylinder body 1 through a bearing, and the upper end of the first rotating shaft 3 is connected with a motor; the motor drives the first rotating shaft 3 to rotate, and the rotating direction of the first rotating shaft 3 is anticlockwise rotated when seen from top to bottom.
The second disc 10 is provided with second through holes 23 which are in one-to-one correspondence with the hoses 12, and each hose 12 is arranged in the corresponding second through hole 23; the second disc 10 is provided with third through holes 24 which are in one-to-one correspondence with the piston rods 14, and each piston rod 14 is arranged in the corresponding third through hole 24 and can move up and down; the provision of the second through hole 23 enables the water inlet on the piston cylinder 11 to communicate with the corresponding first through hole 8 via the hose 12, and the provision of the third through hole 24 enables the piston rod 14 to move up and down.
When the electroplating tank is used, the left side of the outer edge of the cylinder body 1 is fixed with the left inner wall of the electroplating tank, and the slag discharging pipe 16 inserted at the left side of the cylinder body 1 penetrates out of the left side wall of the electroplating tank, so that the pipe orifice of the slag discharging pipe 16 is arranged outside the electroplating tank; the first rotating shaft 3 is driven by a motor to rotate anticlockwise, and the first disc 4 can be driven to rotate in the inclined first annular groove 2 by the rotation of the first rotating shaft 3; the rotation energy of the first rotating shaft 3 drives the second rotating shaft 9 to rotate through a universal joint, so that the second disc 10 rotates in the second annular groove 18, and the second disc 10 and the first disc 4 synchronously rotate;
the first one-way valve of the water inlet of the piston cylinder 11 can ensure that the solution in the piston cylinder 11 can not only enter and exit, and the second one-way valve of the water outlet of the piston cylinder 11 can ensure that the solution in the piston cylinder 11 can not only enter and exit, so that the solution can only enter the piston cylinder 11 from the water inlet and exit the piston cylinder 11 from the water outlet;
in the first disc 4, the blind holes 5 can be communicated with the water inlet pipe 15 when the first disc 4 rotates to the water inlet pipe 15 at the front side along with the rotation of the first disc 4 from the lowest left end to the highest right end; under the first disc 4, as the solution can only enter the piston cylinder 11 from the water inlet, the piston rod 14 drives the piston 13 to rise to the top of the piston cylinder 11 from the bottom of the piston cylinder 11 in the process of rotating the first disc 4 from the lowest left end to the highest right end, the solution in the blind hole 5 can be pumped into the piston cylinder 11 through the hose 12, and filter residues are reserved in the filter screen 6;
in the first disc 4, in the process that the filter screen 6 rotates from the highest right end to the lowest left end along with the first disc 4, a circular ring 22 at the opening of the filter screen 6 contacts with the front end face of a wedge block 17 in the first annular groove 2 to form extrusion, the reaction force of the front end face of the wedge block 17 to the filter screen 6 can push the filter screen 6 to move towards the bottom of the blind hole 5 and compress a pressure spring 7, the filter screen 6 rotates from right to left due to the fact that the wedge block 17 is thick left to right, the compression amount of the pressure spring 7 can be gradually increased, when the filter screen 6 moves to the position of a left deslagging pipe 16, the filter screen 6 is separated from the front end face of the wedge block 17, the pressure spring 7 can push the filter screen 6 away from the bottom of the blind hole 5 under the reset action, and after the filter screen 6 moves towards the deslagging pipe 16 by the distance of the maximum thickness of the wedge block 17, the opening of the filter screen 6 contacts with the inner wall of the first annular groove 2 to form collision, so that filter residues in the filter screen 6 are discharged to the outside of an electroplating pool through the deslagging pipe 16; the opening of the filter screen 6 is gradually adjusted to incline downwards in the process that the filter screen 6 rotates from the highest right side to the lowest left side along with the rotation of the first circular disk 4, and the inclination degree of the opening of the filter screen 6 is maximum when the filter screen 6 moves to the position of the left slag discharging pipe 16, so that filter residues are separated from the filter screen 6; under the first disc 4, as the solution can only flow out of the piston cylinder 11 from the water outlet, the piston rod 14 drives the piston 13 to descend from the top of the piston cylinder 11 to the bottom of the piston cylinder 11 in the process of rotating from the highest right side to the lowest left side along with the first disc 4, and the solution in the piston cylinder 11 can be extruded into the electroplating tank through the water outlet pipe 20;
by combining the above processes, the solution in the electroplating tank enters the barrel 1 through the water inlet pipe 15 at the front side of the barrel 1, is filtered by the filter screen 6, is discharged out of the barrel 1 through the rear side of the barrel 1 and enters the electroplating tank, and flows forwards from back to back in the electroplating tank to form continuous stirring, so that concentration polarization is eliminated; the solution in the electroplating tank flows from back to forth to drive impurities and precipitated solids in the electroplating tank to be converged at the front side of the cylinder body 1, so that the impurities and the precipitates are removed quickly.
According to the invention, the piston cylinder 11 is arranged, the piston rod 14 and the piston 13 are driven to move up and down in the piston cylinder 11 through the rotation of the first rotating shaft 3, so that the solution in the electroplating tank is extracted, filtered by the filter screen 6 and then injected into the electroplating tank, the automatic removal of impurities and educts in the electroplating tank is realized, and the influence of the impurities and educts without forming a coating in the electroplating liquid on the quality of a plated part is avoided.
According to the invention, the wedge-shaped blocks 17 with left thickness and right thinness are arranged at the rear end in the first annular groove 2, so that the pressure spring 7 gradually accumulates force in the process that the filter screen 6 rotates from the highest right end to the lowest left end along with the first disk 4, then the pressure spring 7 resets to enable the filter screen 6 to be in contact with the inner wall of the first annular groove 2 and form collision, filter residues in the filter screen 6 are removed, the filter screen 6 is prevented from being blocked by the filter residues, the self-cleaning of the filter screen 6 is realized, and the filter screen 6 does not need to be replaced frequently.
The solution in the electroplating tank is introduced into the piston cylinder 11 through the front side of the cylinder body 1, and the piston cylinder is only used for draining water outwards when being positioned at the rear side of the cylinder body 1, so that the solution is discharged from the rear side of the cylinder body 1 and enters the electroplating tank after being filtered, and liquid flow flowing forwards from back to back is formed in the electroplating tank to continuously stir the electroplating liquid, so that concentration polarization is eliminated, and meanwhile, bubbles remained on the surface of a plating layer can be taken away by the flowing liquid flow, and the influence of the bubbles on the quality of a plating piece is avoided; the solution in the electroplating tank flows forwards from the back, can drive the solid precipitated in the electroplating tank to be converged at the front side of the cylinder body 1, quickens the removal of impurities and precipitates in the electroplating liquid, avoids dead angle formation and has good removal effect.
Claims (8)
1. The electroplating stirring and filtering device comprises a barrel body (1) with a downward opening, and is characterized in that a first annular groove (2) inclining leftwards is formed in the inner wall of the barrel body (1), a first rotating shaft (3) inclining rightwards is inserted into the upper end face of the barrel body (1), a first disc (4) is vertically fixed at the lower end of the first rotating shaft (3), and the first disc (4) is arranged in the first annular groove (2) and can rotate around the axis of the first annular groove (2); a plurality of blind holes (5) are uniformly distributed on the circumference of the outer edge surface of the first disc (4), a cylindrical filter screen (6) with an outward opening is arranged in each blind hole (5), the filter screen (6) can move and reset along the blind holes (5) towards the direction of the first rotating shaft (3), and a pressure spring (7) is arranged between the bottom of the filter screen (6) and the blind holes (5); a plurality of first through holes (8) which are in one-to-one correspondence with the blind holes (5) are formed in the lower end face of the first disc (4); the lower end of the first rotating shaft (3) is connected with a vertical second rotating shaft (9) through a universal joint, the lower end of the second rotating shaft (9) is fixedly provided with a horizontal second disc (10), the second disc (10) can rotate in the cylinder body (1), piston cylinders (11) which are in one-to-one correspondence with the blind holes (5) are uniformly distributed on the circumference of the lower end surface of the second disc (10), a water inlet and a water outlet are formed in the bottom of each piston cylinder (11), each water inlet is provided with a first one-way valve which can ensure that water in the piston cylinder (11) can not only enter and exit, each water outlet is provided with a second one-way valve which can ensure that water in the piston cylinder (11) can not enter, and each water inlet is communicated with the corresponding first through hole (8) through a hose (12) which is long enough to ensure that the piston cylinder (11) is communicated with the corresponding blind hole (5); a piston (13) capable of moving up and down is arranged in each piston cylinder (11), a piston rod (14) is fixed at the upper end of each piston (13), and the upper end of each piston rod (14) is hinged on the lower end face of the first disc (4); a plurality of water inlet pipes (15) communicated with the first annular groove (2) are inserted at the front side of the cylinder body (1), a slag discharging pipe (16) inclining leftwards is inserted at the left side of the cylinder body (1), and the inner side end surface of the slag discharging pipe (16) is arranged on the bottom surface of the first annular groove (2); a wedge block (17) arranged between the first annular groove (2) and the first disc (4) is fixed at the rear side in the first annular groove (2), the projection of the wedge block (17) on the lower end surface of the first disc (4) is arc-shaped, the thickness of the wedge block (17) in the front-rear direction is gradually increased from right to left, and the left end of the wedge block (17) is arranged at the rear of the slag discharging pipe (16); when the blind holes (5) rotate to the front side of the cylinder body (1) along with the first disc (4), each blind hole (5) is communicated with a plurality of water inlet pipes (15) one by one, when the blind holes (5) rotate to the rear side of the cylinder body (1) along with the first disc (4), the openings of the filter screens (6) are in contact with the front end surfaces of the wedge-shaped blocks (17), the filter screens (6) gradually approach the first rotating shafts (3) when rotating from right to left, the pressure springs (7) are gradually compressed, when the filter screens (6) rotate to the left side of the cylinder body (1) along with the first disc (4), the openings of the filter screens (6) are separated from the front end surfaces of the wedge-shaped blocks (17), the pressure springs (7) are reset to push the filter screens (6) outwards, and the distance of outwards moving the filter residues is the maximum value of the thicknesses of the wedge-shaped blocks (17).
2. An electroplating stirring filter device according to claim 1, wherein a second annular groove (18) is formed in the inner wall of the cylinder (1) at a position corresponding to the second disc (10), and the second disc (10) is arranged in the second annular groove (18) and can rotate around the axis of the second annular groove (18).
3. An electroplating stirring filter device according to claim 1, wherein a third annular groove (19) is formed in the outer edge surface of the first disc (4), and the wedge-shaped block (17) is arranged in the third annular groove (19).
4. An electroplating stirring filter device according to claim 1, wherein a water outlet pipe (20) is inserted into the water outlet at the bottom of each piston cylinder (11).
5. The electroplating stirring filter device according to claim 1, wherein a fourth annular groove (21) is formed in the inner edge surface of the blind hole (5), an annular ring (22) is fixed at the opening of the outer edge of the filter screen (6), and the annular ring (22) is arranged in the fourth annular groove (21) and can move along the axis of the fourth annular groove (21) in the fourth annular groove (21).
6. The electroplating stirring filter device according to claim 5, wherein the end surface of the ring (22) arranged at one end of the outer side of the blind hole (5) is attached to the inner edge surface of the first annular groove (2), and the ring (22) is made of elastic soft material.
7. The electroplating stirring filter device according to claim 1, wherein the first rotating shaft (3) and the cylinder (1) are in rotating connection through a bearing, and the upper end of the first rotating shaft (3) is connected with a motor.
8. An electroplating stirring filter device according to claim 1, wherein the second disc (10) is provided with second through holes (23) corresponding to the hoses (12) one by one, and each hose (12) is arranged in the corresponding second through hole (23); third through holes (24) which are in one-to-one correspondence with the piston rods (14) are formed in the second disc (10), and each piston rod (14) is arranged in the corresponding third through hole (24) and can move up and down.
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| CN202011622473.7A CN112708922B (en) | 2020-12-31 | 2020-12-31 | Electroplating stirring filter device |
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