CN114808064B

CN114808064B - Forced flushing device before rare earth permanent magnet electroplating and automatic pretreatment system

Info

Publication number: CN114808064B
Application number: CN202210449636.9A
Authority: CN
Inventors: 王丽兵; 解长波; 刘健; 周保平
Original assignee: Baotou INST Magnetic New Material Co Ltd
Current assignee: Baotou INST Magnetic New Material Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2023-04-21
Anticipated expiration: 2042-04-27
Also published as: CN114808064A

Abstract

The invention relates to the technical field of rare earth permanent magnet production, and discloses a forced flushing device before rare earth permanent magnet electroplating and an automatic pretreatment system, which comprise a roller, wherein the roller is prismatic in shape, and uniformly arranged through holes are machined on the outer surface of the roller; one end opening of the roller is adhered with an end cover for closing the opening, and the other end opening of the roller is adhered with a fluted disc for closing the opening; a fixed shaft is arranged at the centers of the fluted disc and the end cover; the end face of one fixed shaft is provided with a liquid injection channel communicated with the inner cavity of the roller; cutting a side plate of the roller as a feed port, wherein the side plate is detachably fixed with the roller; when the cylinder of this application is rotatory in the pickling tank, with pickling solution compulsorily pour into the cylinder inside, then flow out from the mesh of cylinder, realize the acidizing fluid in the cylinder and external abundant exchange, guarantee the homogeneity of magnetic sheet pickling degree, on the other hand can force the string ash in the cylinder of dashing out, the pickling is effectual.

Description

Forced flushing device before rare earth permanent magnet electroplating and automatic pretreatment system

Technical Field

The invention relates to the technical field of rare earth permanent magnet production, in particular to a forced flushing device before rare earth permanent magnet electroplating and an automatic pretreatment system.

Background

The electroplating processing of rare earth permanent magnet products generally mainly comprises pretreatment, electroplating and post-treatment. The pretreatment aims to remove oxide rust on the surface of the magnetic sheet, the removal thickness is usually only 1-10 mu m, the effect of improving the cleanliness of the surface of the magnetic sheet can be achieved, and the subsequent electroplating process is convenient; the traditional pickling process is that the neodymium iron boron magnetic sheet is put into a pickling tank for primary pickling, and is taken out after pickling for 20s, and the neodymium iron boron magnetic sheet is put into the pickling tank again for secondary pickling, and is taken out after pickling for 20s, so that the operation is complex and the safety is low.

Along with the development of industrial automation, the traditional manual pretreatment production line is gradually replaced by an automatic production line, neodymium iron boron magnetic sheets are placed in a roller, then the roller is immersed into pickling solution by downward movement of a lifting machine, a driving motor is started to drive the roller to rotate, and the magnetic sheets in the roller are overturned along with the roller, so that the pickling solution and the magnetic sheets uniformly and fully react, and the use amount of the pickling solution is saved; the surface can produce one deck and hang the ash behind the magnetic sheet pickling, and a part hangs the ash and can follow the cylinder and discharge after taking off, but because the stopper of cylinder leads to most of the hanging ash that takes off can't discharge the cylinder, the effect of pickling is relatively poor, has influenced electroplating technology.

Disclosure of Invention

The invention aims to provide a forced flushing device and an automatic pretreatment system before rare earth permanent magnet electroplating, so that acid liquor in a roller is fully exchanged with the outside, uniformity of pickling degree of magnetic sheets is ensured, and ash hanging in the roller can be forced to be flushed out, and pickling effect is good; solving the problems set forth in the background art.

The technical scheme adopted by the invention is as follows: the forced flushing device before rare earth permanent magnet electroplating comprises a roller, wherein the roller is in a hexagonal tubular shape, grooves which are arranged in a matrix are processed on the outer surface of the roller, through holes which are uniformly arranged are processed on each groove, an end cover with a closed opening is bonded at one port of the roller, the end cover is in a circular shape, a fluted disc with the closed opening is bonded at the other port, the fluted disc is in a circular shape, and the diameter of the fluted disc is larger than that of the end cover; the center of the fluted disc and the end cover is connected with a fixed shaft through a sealed bearing, the fixed shaft faces to the outer side, and the inner end of the fixed shaft penetrates through the fluted disc; the end face of one fixed shaft is provided with a liquid injection channel communicated with the inner cavity of the roller; cutting a side plate of the roller to form a feed opening; the side wall of the roller is adhered with symmetrically arranged lock plates which are positioned at two sides of the material opening and are perpendicular to the material opening, and the end surfaces of the lock plates are provided with equidistant lock grooves which are in a strip shape; the outer end face of the cut side plate is connected with clamping plates through hand-screwed bolts, the clamping plates are in elliptical plate shapes, and the number of the clamping plates corresponds to the number of the locking grooves.

The beneficial effects of adopting above-mentioned scheme are: by limiting the structure of the roller, the placed neodymium iron boron magnetic sheets roll, so that insufficient acid washing caused by magnetic sheet adhesion is avoided; by arranging the grooves, the thickness of the roller is reduced by the groove parts, the accumulation of impurities in the through holes is avoided, the blocking is caused, and the protruding parts ensure that the structure of the roller keeps rigidity and strength, so that the enough bearing capacity is ensured; through the arrangement of the through holes, the through holes can enable the pickling solution to flow into the roller and the detached hanging ash to be discharged; the pickling solution can be injected into the roller from the outer side through the arrangement of the solution injection channel, so that the pickling solution in the roller can be fully exchanged with the pickling solution in the pickling tank, the uniformity of the pickling degree of the magnetic sheet is ensured, and on the other hand, the hanging ash in the roller can be forcedly flushed out, and the cleaning effect is good; through setting up cardboard and jam plate, the long limit screw in locked groove of cardboard makes the curb plate fixed, and rotatory hand screw bolt makes the cardboard break away from locked groove and can dismantle the curb plate simultaneously.

Further, the device also comprises a positioning plate connected with the fixed shaft, wherein the positioning plate is rectangular plate-shaped, and the fixed shaft is positioned at the lower part of the positioning plate; a limiting rod is fixed in the gap of the positioning plates at two sides through bolts; a concave cone interface is fixed on the outer side of the positioning plate; the shape of the concave cone interface is cylindrical, a conical cavity is processed on the bottom surface of the concave cone interface, the diameter of the lower port of the conical cavity is larger than the diameter of the upper port, an L-shaped channel is processed at the axis of the concave cone interface, the horizontal section of the L-shaped channel penetrates through the side wall of the concave cone interface, the vertical section of the L-shaped channel is communicated with the conical cavity, a plane is cut out on the upper side wall of the concave cone interface, the L-shaped channel port on the plane is in butt joint with the port of the liquid injection channel on the fixed shaft, the plane is bonded with the connecting surface of the fixed shaft through sealant, a bolt seat is bonded with the outer side wall of the concave cone interface, the concave cone interface can be fixed on the outer side of the positioning plate through a bolt seat inserting bolt, a convex cone interface is nested in the conical cavity of the concave cone interface, the convex cone interface comprises a pipe body, the upper port of the pipe body is propped against the upper end surface of the conical cavity, and pickling liquid in the pipe body enters the L-shaped channel; the upper portion lateral wall of body bonds there is the protruding conical head with the toper chamber adaptation, and the upper edge of this protruding conical head flushes with the upper edge of body, and protruding conical head's material is silica gel, and protruding conical head highly the same with the toper chamber, and the lower part lateral wall processing of body has screw thread portion, and the cover has the loading board on the body, and the loading board offsets with protruding conical head's bottom surface, twists the locating nut of fixed loading board on the screw thread portion, and the acid delivery pipe can be connected to the lower port of body.

The beneficial effects of adopting the further scheme are as follows: by defining the position of the fixed shaft, the drum is conveniently immersed into the pickling solution completely; the conical cavity can be in butt joint with the convex cone interface, so that quick connection of pickling solution in production line production is realized, and flowing pickling solution forcedly washes hanging ash outwards from the inside of the roller; the L-shaped channel is arranged to guide the pickling solution into the liquid injection channel, and the pressure of the flowing pickling solution is increased due to the thinning of the pipe diameter of the L-shaped channel, so that the pickling solution can forcedly wash out ash from inside to outside; the concave cone interface can be tightly connected with the fixed shaft through the arrangement of the plane, so that the circulation of pickling solution is ensured, the plane does not completely press the fixed shaft, and the installation of other structures is facilitated; the concave cone interface can be ensured to be stably installed by arranging the bolt seat, so that the pickling solution can be conveniently and quickly connected in the production line; by limiting the convex cone head structure, the concave cone interface and the convex cone interface are tightly butted, the supporting force is stable, and if the high-pressure pickling solution is not tightly butted, the concave cone interface can be pushed away, so that the damage is caused; the convex cone head is arranged to play a guiding role, and the concave cone interface is elastically connected with the convex cone interface, so that the tightness of the connecting surface is improved; the concave cone interface can be supported by the bearing plate, so that the concave cone interface is ensured to be completely pressed against the convex cone interface, and the phenomenon of liquid leakage during forced acid injection is avoided, because the ash hanging in the roller cannot be forced to be flushed out due to insufficient pressure.

Further, the pipe body of the convex cone interface is connected with a pump body through a liquid outlet pipeline, and a liquid inlet of the pump body is connected with an acid storage tank through a liquid inlet pipeline.

The beneficial effects of adopting the further scheme are as follows: when the roller rotates, the pump body is started, so that the pickling solution in the acid storage tank can be pumped out from the liquid inlet pipeline and then forcedly injected into the roller from the liquid outlet pipeline, and the forceful flushing of the forceful magnetic sheet is realized; since the concentration of the pickling solution is consumed in the cleaning process, a new pickling solution is added in the pickling process, so that the pickling environment maintains a stable acid concentration.

Further, the washing machine also comprises a pickling tank, wherein a motor tank is machined on the top surface of the pickling tank, and the motor tank is positioned at the right central line of the pickling tank; a gear motor is arranged in the motor groove, the shaft end of the gear motor faces the pickling groove, and a first gear is connected with the shaft end through a key; a supporting seat is welded on the upper edge of the pickling tank; the number of the supporting seats is 4, every two supporting seats are arranged on the left top surface and the right top surface of the pickling tank in a group, the supporting seats are rectangular in shape, and the top surfaces of the supporting seats are provided with V-shaped grooves; the outer terminal surface of locating plate is fixed with the bracing piece through the bolt, and the quantity of bracing piece is 4 to the bracing piece is located the waist of locating plate and leans on the position.

The beneficial effects of adopting the further scheme are as follows: through setting up supporting seat and bracing piece for the cylinder of locating plate lower part installation can dip in the pickling solution completely, and the lateral wall overlap joint of bracing piece has realized the steady support of cylinder in the V type groove of supporting seat, and can hang out the cylinder fast.

Further, first limiting plates are welded on the left and right inner walls of the pickling tank, the first limiting plates are right trapezoid in shape, inclined edges face upwards, long edges are perpendicular to the pickling tank, and short edges are abutted against the end faces of the positioning plates; the front and rear inner walls of the pickling tank are welded with second limiting plates, the second limiting plates are right trapezoid in shape, oblique sides face upwards, long sides are perpendicular to the pickling tank, right-angle grooves propped against the positioning plates are machined in the short sides, one side of the bearing plate is welded on the inner side wall of the pickling tank, and the bearing plate is propped against the concave cone interface.

The beneficial effects of adopting the further scheme are as follows: the first limiting plate can be guided into the pickling tank through a structure for limiting the first limiting plate, and the displacement of the positioning plate is limited in the left-right direction; the second limiting plate can be guided into the pickling tank through a structure for limiting the second limiting plate, and the displacement of the positioning plate is limited in the front-back left-right direction; through setting up the displacement that the loading board can be in the limiting locating plate of lower direction, in sum limited 5 degrees of freedom of locating plate, guaranteed that the cylinder is stable rotatory in the pickling tank, not limited ascending degree of freedom, the lifting of cylinder in the streamlined production of being convenient for.

Further, a first suspender is fixedly connected with the gap of the positioning plate, the first suspender is positioned at the upper part of the positioning plate, and the right end of the first suspender extends to the outer side of the positioning plate; a pair of second suspenders are fixedly connected to the end face of the left locating plate, the second suspenders and the first suspenders are located on the same horizontal plane, and the left end of the second suspenders extends to the outer side of the locating plate.

The beneficial effects of adopting the further scheme are as follows: the mechanical picking and placing process of the roller can be realized by arranging the first suspender and the second suspender, the left-right movement function, the up-down movement function and the front-back movement function of the hoister are specifically utilized to complete the pretreatment process of the magnetic sheet, the first suspender is directly connected with the two positioning plates, the stress of the hoisting process is uniform, and the safety is good.

Further, a main shaft is connected in the gap of the positioning plate through a bearing, and the right end of the main shaft extends to the outer side of the positioning plate; the outer part of the main shaft is connected with a second gear through a key, and the second gear is meshed with the first gear; the side wall of the main shaft is connected with a third gear through a key, and the third gear is close to the left positioning plate; a driven shaft is connected in the gap of the positioning plate through a bearing; the side wall of the driven shaft is connected with fourth gears which are symmetrically arranged through keys, the fourth gear on the right side is meshed with the third gear, and the fourth gear on the left side is meshed with the fluted disc; the fixed shaft, the main shaft and the driven shaft are positioned on the same vertical plane, and the vertical plane is the plane where the central line of the positioning plate is positioned.

The beneficial effects of adopting the further scheme are as follows: after the cylinder is placed in the pickling tank, start gear motor, drive first gear rotation, first gear drives second gear and third gear synchronous revolution, and the third gear drives two fourth gears synchronous revolution, and the fourth gear on right side drives the fluted disc rotation, has realized the rotation of cylinder in the pickling tank for even abundant reaction of neodymium iron boron magnetic sheet and pickling solution.

Further, the bracing piece is replaced for the bar copper, and power positive pole and power negative pole are connected respectively to the bar copper of both sides, and the bar copper that is located the homonymy passes through the connecting wire and establishes ties, and one bar copper connects the power, and another bar copper passes through the insulating wire and connects the conductive head, and the insulating wire passes the fixed axle and puts into the cylinder with the conductive head.

The beneficial effects of adopting the further scheme are as follows: the copper bar is connected into a direct current circuit, the pickling solution enables the whole to form a closed loop, the conductive head on one side flows out of electrons, oxidation reaction is emitted, the conductive head on the other side flows into electrons, reduction reaction is carried out, and the ash hanging on the surface of the magnetic sheet can be thoroughly cleaned.

Further, the pipe body of the convex cone interface is connected with a pump body through a liquid inlet pipeline, a liquid outlet of the pump body is led into the pickling tank through a liquid outlet pipeline, and a filter is arranged on the liquid outlet pipeline.

The beneficial effects of adopting the further scheme are as follows: the pump body is started, the pickling solution in the pickling tank can be pumped out from the liquid outlet pipeline, the ash can be filtered in the flowing process, and then the pickling solution is forcedly injected into the roller from the liquid inlet pipeline, so that the forceful flushing of the forceful magnetic sheet is realized, and the pickling solution is saved.

In order to realize the production line of the neodymium iron boron magnetic sheet, an automatic pretreatment system is further provided, and the automatic pretreatment system comprises the following steps:

s1: lifting the positioning plate through a lifting machine, lifting the synchronous rollers, and placing the rollers into a charging groove for charging;

s2: lifting the positioning plate by a lifting machine, lifting the roller, placing the charged roller into a first ultrasonic cleaning tank for cleaning, and continuously rotating the roller during cleaning;

s3: lifting the positioning plate by a lifting machine, lifting the roller, placing the roller subjected to the first ultrasonic cleaning into a second ultrasonic cleaning tank for cleaning, and continuously rotating the roller during cleaning;

s3: lifting the positioning plate by a lifting machine, lifting the roller, placing the roller subjected to the second ultrasonic cleaning into a cleaning water tank for cleaning, and continuously rotating the roller during cleaning;

s4: lifting the positioning plate by a lifting machine, lifting the roller, placing the cleaned roller into a first pickling tank for pickling, continuously rotating the roller during cleaning, and forcibly injecting pickling solution into the roller;

s5: lifting the locating plate by a lifting machine, lifting the roller at the same time, placing the roller subjected to the first pickling into a first washing tank for washing, continuously rotating the roller during washing, and forcibly injecting water into the roller;

s6: lifting the positioning plate by a lifting machine, lifting the roller, placing the roller subjected to the first washing into a third ultrasonic cleaning tank for cleaning, and continuously rotating the roller during cleaning;

s7: lifting the locating plate by a lifting machine, lifting the roller at the same time, placing the roller subjected to the third ultrasonic cleaning into a first high-level washing tank for cleaning, continuously rotating the roller during cleaning, and immersing the locating plate in water;

s8: lifting the positioning plate by a lifting machine, lifting the roller, placing the roller subjected to the first high-level water washing into a second pickling tank for pickling, continuously rotating the roller during cleaning, and forcibly injecting pickling solution into the roller, wherein the concentration of the used pickling solution is lower than that of the first pickling solution;

s9: lifting the locating plate by a lifting machine, lifting the roller, placing the roller subjected to the second pickling into a fourth ultrasonic cleaning tank for cleaning, and continuously rotating the roller during cleaning;

s10: lifting the positioning plate by a lifting machine, lifting the roller, placing the roller subjected to the fourth ultrasonic cleaning into a second washing tank for washing, continuously rotating the roller during washing, and forcibly injecting water into the roller;

s11: lifting the locating plate by a lifting machine, lifting the roller at the same time, placing the roller subjected to the second water washing into a second high-level water washing tank for washing, continuously rotating the roller during washing, and immersing the locating plate in water;

s12: the locating plate is lifted by the lifting machine, meanwhile, the roller is lifted, the roller which is subjected to secondary high-level water washing is placed into the electrolytic ash removal groove for ash removal, the roller continuously rotates during ash removal, and the roller which is subjected to ash removal can enter the electroplating process.

The invention has the beneficial effects that:

1. when the cylinder of this application is rotatory in the pickling tank, with pickling solution compulsorily pour into the cylinder inside, then flow out from the mesh of cylinder, realize the acidizing fluid in the cylinder and external abundant exchange, guarantee the homogeneity of magnetic sheet pickling degree, on the other hand can force the string ash in the cylinder of dashing out, the pickling is effectual.

2. According to the method, through improving the pretreatment process flow, the product undergoes forced exchange acid washing twice and an electrolytic ash removal process step is added, so that the ash hanging on the surface of the product can be cleaned; by adding high-level water washing, the roller is ensured to be cleaned before entering the electroplating bath, and the pickling solution is prevented from being brought into the electroplating bath to pollute the plating solution.

Drawings

Fig. 1 is a schematic perspective view of a drum.

Fig. 2 is a schematic side sectional structure of the drum.

Fig. 3 is a schematic view of a sectional front view of a drum.

Fig. 4 is a schematic perspective view of the drum after the side plates are opened.

Fig. 5 is a schematic perspective view of a female cone interface and a male cone interface not in butt joint.

Fig. 6 is a schematic diagram of a front view structure of a female cone interface and a male cone interface.

Fig. 7 is a schematic diagram of a front view cross-section structure of a female cone interface and a male cone interface.

Fig. 8 is a schematic diagram of a front view cross-section structure of the female cone interface and the male cone interface after being abutted.

Fig. 9 is a schematic side sectional structure of the female cone interface and the male cone interface.

Fig. 10 is a schematic perspective view of a female cone interface and a male cone interface.

Fig. 11 is a schematic perspective sectional structure of the liquid inlet pipe and the liquid outlet pipe.

Fig. 12 is a schematic perspective view of a pickling tank.

Fig. 13 is a schematic view of a sectional front view of the pickling tank.

Fig. 14 is a schematic top view of the first limiting plate and the second limiting plate.

Fig. 15 is a schematic perspective view of the first limiting plate and the second limiting plate.

Fig. 16 is a schematic perspective view of a first boom and a second boom.

Fig. 17 is a schematic perspective view of a main shaft and a driven shaft.

Fig. 18 is a schematic diagram of a main shaft and a driven shaft in a main view.

Fig. 19 is a schematic side sectional structure of the main shaft and the driven shaft.

Fig. 20 is a schematic diagram of a three-dimensional structure of copper bar connection.

Fig. 21 is a schematic view of the left-hand three-dimensional structure of a copper bar.

Fig. 22 is a right side perspective view of the copper bar.

Fig. 23 is a schematic sectional front view of the conductive head.

Fig. 24 is a schematic perspective sectional structure of a liquid inlet pipe and a liquid outlet pipe according to the second embodiment.

FIG. 25 is a flow chart of an automated preprocessing system.

In the figure: 1. a roller; 2. a groove; 3. a through hole; 4. an end cap; 5. fluted disc; 6. sealing the bearing; 7. a fixed shaft; 8. a liquid injection channel; 9. a side plate; 10. a material port; 11. a lock plate; 12. a locking groove; 13. screwing the bolt by hand; 14. a clamping plate; 15. a positioning plate; 16. a limit rod; 17. a concave cone interface; 18. a conical cavity; 19. an L-shaped channel; 20. a plane; 21. a bolt seat; 22. a convex cone interface; 23. a tube body; 24. a convex cone head; 25. a threaded portion; 26. a carrying plate; 27. positioning a nut; 28. a liquid outlet pipeline; 29. a pump body; 30. a liquid inlet pipeline; 31. an acid storage tank; 32. a pickling tank; 33. a motor slot; 34. a speed reducing motor; 35. a first gear; 36. a support base; 37. a V-shaped groove; 38. a support rod; 39. a first limiting plate; 40. a second limiting plate; 41. a right angle slot; 42. a first boom; 43. a second boom; 44. a main shaft; 45. a second gear; 46. a third gear; 47. a driven shaft; 48. a fourth gear; 49. a copper bar; 50. a connecting wire; 51. an insulating wire; 52. a conductive head; 53. a filter; 54. a hoist; 55. a charging groove; 56. a first ultrasonic cleaning tank; 57. a second ultrasonic cleaning tank; 58. a clean water tank; 59. a first pickling tank; 60. a first washing tank; 61. a third ultrasonic cleaning tank; 62. a first high-level washing tank; 63. a second pickling tank; 64. a fourth ultrasonic cleaning tank; 65. a second washing tank; 66. a second high-level washing tank; 67. and (5) an electrolytic ash removal tank.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

As shown in figures 1-2, the forced flushing device before rare earth permanent magnet electroplating comprises a roller 1, wherein the roller 1 is in a hexagonal tubular shape, so that the placed neodymium iron boron magnetic sheets roll, and insufficient acid washing caused by magnetic sheet adhesion is avoided; the grooves 2 are processed on the outer surface of the roller 1 in a matrix arrangement, the thickness of the roller 1 is reduced by the grooves 2, the phenomenon that impurities are accumulated in the through holes 3 to cause blockage is avoided, and the protruding parts enable the structure of the roller 1 to keep rigidity and strength, so that enough bearing capacity is ensured; through holes 3 which are uniformly arranged are processed on each groove 2, and the through holes 3 can enable pickling solution to flow into the roller 1 and enable detached hanging ash to be discharged; an end cover 4 with a closed opening is adhered to one port of the roller 1, the end cover 4 is circular in shape, a fluted disc 5 with the closed opening is adhered to the other port, the fluted disc 5 is circular in shape, and the diameter of the fluted disc 5 is larger than that of the end cover 4, so that the later driving process is facilitated; as shown in fig. 3, the centers of the fluted disc 5 and the end cover 4 are connected with a fixed shaft 7 through a sealed bearing 6, the fixed shaft 7 faces outwards, and the inner end of the fixed shaft 7 penetrates through the fluted disc 5; the end face of one fixed shaft 7 is provided with a liquid injection channel 8 communicated with the inner cavity of the roller 1, and the pickling liquid is injected into the roller 1 from the outer side, so that the pickling liquid in the roller 1 can be fully exchanged with the pickling liquid in the pickling tank 32, the uniformity of the pickling degree of the magnetic sheet is ensured, and on the other hand, the hanging ash in the roller 1 can be forcedly flushed out, and the pickling effect is good; as shown in fig. 4, a side plate 9 of the drum 1 is cut off to be used as a material opening 10, so that the material loading and unloading process is facilitated; the side wall of the roller 1 is adhered with symmetrically arranged lock plates 11, the lock plates 11 are positioned at two sides of the material port 10 and are perpendicular to the material port 10, the end surface of the lock plates 11 is processed with equally spaced lock grooves 12, and the shape of the lock grooves 12 is strip-shaped; the outer end face of the cut side plate 9 is connected with clamping plates 14 through hand-screwed bolts 13, the clamping plates 14 are in elliptical plate shapes, the number of the clamping plates 14 corresponds to that of the locking grooves 12, the long edges of the clamping plates 14 are screwed into the locking grooves 12 to fix the side plate 9, and meanwhile the hand-screwed bolts 13 are rotated to enable the clamping plates 14 to be separated from the locking grooves 12, so that the side plate 9 can be detached.

As shown in fig. 5-6, as an optimization of the embodiment, considering that the magnetic sheets in the drum 1 are pickled on a production line, the operation time is short, so that the connection mode of the liquid injection channel 8 and the external pickling liquid is quick butt joint, and the invention further comprises a positioning plate 15 connected with the fixed shaft 7 for realizing the operation, wherein the positioning plate 15 is rectangular plate-shaped, and the fixed shaft 7 is positioned at the lower part of the positioning plate 15, so that the drum 1 is conveniently immersed into the pickling liquid completely; a limiting rod 16 is fixed in the gap between the positioning plates 15 at two sides through bolts, the limiting rod 16 is positioned at the upper, middle and lower positions of the positioning plates 15, two limiting rods are arranged at the lower part, two limiting rods are arranged at the middle part, and one limiting rod is arranged at the upper part, so that the positioning plates 15 are stably installed; as shown in fig. 7, a concave cone interface 17 is fixed on the outer side of the positioning plate 15; the shape of the concave cone interface 17 is cylindrical, a conical cavity 18 is processed on the bottom surface of the concave cone interface 17, the diameter of the lower port of the conical cavity 18 is larger than that of the upper port, an L-shaped channel 19 is processed at the axis of the concave cone interface 17, the horizontal section of the L-shaped channel 19 penetrates through the side wall of the concave cone interface 17, the vertical section of the L-shaped channel 19 is communicated with the conical cavity 18, the conical cavity 18 can be in butt joint with the convex cone interface 22 to realize quick connection of pickling liquid in production line, the flowing pickling liquid can be forcedly washed out from the inside of the roller 1 to hang ash, the pickling liquid can be led into the liquid injection channel 8 through the L-shaped channel 19, and the pressure of the flowing pickling liquid is increased due to the diameter taper of the L-shaped channel 19, so that the pickling liquid can forcedly wash out of the hung ash from inside to outside; as shown in fig. 10, a plane 20 is cut out from the upper side wall of the concave cone interface 17, the port of the L-shaped channel 19 on the plane 20 is in butt joint with the port of the liquid injection channel 8 on the fixed shaft 7, the connection surface of the plane 20 and the fixed shaft 7 is bonded through sealant, the concave cone interface 17 and the fixed shaft 7 can be tightly connected through arranging the plane 20, circulation of pickling solution is ensured, the plane 20 does not completely press the fixed shaft 7, and installation of other structures is facilitated; the outer side wall of the concave cone interface 17 is adhered with a bolt seat 21, the concave cone interface 17 can be fixed on the outer side of the positioning plate 15 by inserting bolts into the bolt seat 21, the concave cone interface 17 can be stably installed by arranging the bolt seat 21, and the quick connection of pickling solution in the production line is facilitated; as shown in fig. 7, a convex cone interface 22 is nested in the conical cavity 18 of the concave cone interface 17, the convex cone interface 22 comprises a pipe body 23, as shown in fig. 8, an upper port of the pipe body 23 abuts against the upper end surface of the conical cavity 18, so that pickling solution in the pipe body 23 enters the L-shaped channel 19; the upper side wall of the pipe body 23 is adhered with a convex cone head 24 matched with the conical cavity 18, the upper edge of the convex cone head 24 is flush with the upper edge of the pipe body 23, so that the concave cone interface 17 is tightly butted with the convex cone interface 22, the supporting force is stable, if the high-pressure pickling liquid which is not tightly butted with the concave cone interface 17 can push away to cause damage, the convex cone head 24 is made of silica gel, the convex cone head 24 can play a guiding role, the concave cone interface 17 is elastically connected with the convex cone interface 22, the tightness of a connecting surface is improved, as shown in fig. 9, the height of the convex cone head 24 is the same as that of the conical cavity 18, the lower side wall of the pipe body 23 is provided with a threaded part 25, the pipe body 23 is sleeved with a bearing plate 26, the bearing plate 26 is butted with the bottom surface of the convex cone interface 24, a positioning nut 27 for fixing the bearing plate 26 is screwed on the threaded part 25, the lower port of the pipe body 23 can be connected with a pipeline for conveying acid, the concave cone interface 17 can be supported by setting the bearing plate 26, the concave cone interface 17 can be ensured, the concave cone interface 17 can be completely pressed against the convex cone interface 22, and the phenomenon that the phenomenon of blowing out of the dust cannot occur due to forced filling of the pressure 1 when the acid is forced.

As shown in fig. 11, as optimization of an embodiment, considering the liquid inlet problem of the convex cone interface 22, the pipe body 23 of the convex cone interface 22 is connected with the pump body 29 through the liquid outlet pipeline 28, the liquid inlet of the pump body 29 is connected with the acid storage tank 31 through the liquid inlet pipeline 30, and when the drum 1 rotates, the pump body 29 is started, so that the pickling liquid in the acid storage tank 31 can be extracted from the liquid inlet pipeline 30 and then forcedly injected into the drum 1 from the liquid outlet pipeline 28, thereby realizing the forceful flushing of the forceful magnetic sheets; since the pickling process consumes the concentration of the pickling solution, a new pickling solution is added in the pickling process, so that the pickling environment maintains a stable acid concentration.

As shown in fig. 12-13, as optimization of the embodiment, considering that the magnetic sheets in the roller 1 are pickled on a production line, in order to ensure the accuracy of the concentration of the pickling solution and the sufficiency of pickling the magnetic sheets, the application further comprises a pickling tank 32, a certain amount of pickling solution is injected into the pickling tank 32 to pickle the magnetic sheets in the roller 1, the pickling solution is replaced once, a motor tank 33 is processed on the top surface of the pickling tank 32, the motor tank 33 is positioned at the right central line position of the pickling tank 32, and the motor tank 33 of the whole system is arranged on one side to form a pretreatment production line for producing the magnetic sheets; a gear motor 34 is arranged in the motor groove 33, the shaft end of the gear motor 34 faces the pickling groove 32, a first gear 35 is connected to the shaft end through a key, and the roller 1 can be driven through the first gear 35 after being placed stably; a supporting seat 36 is welded on the upper edge of the pickling tank 32; the number of the supporting seats 36 is 4, each two are arranged on the left and right top surfaces of the pickling tank 32 in a group, the supporting seats 36 are rectangular in shape, and V-shaped grooves 37 are formed in the top surfaces of the supporting seats; the outer terminal surface of locating plate 15 is fixed with bracing piece 38 through the bolt, and the quantity of bracing piece 38 is 4, and bracing piece 38 is taken on supporting seat 36 respectively to bracing piece 38 is located the waist of locating plate 15 and leans on the position for cylinder 1 that locating plate 15 lower part was installed can dip into pickling solution completely, and the lateral wall overlap joint of bracing piece 38 is in the V type groove 37 of supporting seat 36, has realized the steady support of cylinder 1, and can hang out cylinder 1 fast.

As shown in fig. 14-15, as optimization of the embodiment, considering the limit problem of the positioning plate 15 when the drum 1 enters the pickling tank 32, because the positioning plate 15 is limited to ensure the stable rotation of the drum 1, the left and right inner walls of the pickling tank 32 are welded with the first limiting plates 39, the first limiting plates 39 are right trapezoid in shape, the sloping sides face up, the long sides are perpendicular to the pickling tank 32, the short sides are abutted against the end faces of the positioning plate 15, the first limiting plates 39 can be guided into the pickling tank 32 through the structure defining the first limiting plates 39, and the displacement of the positioning plate 15 is limited in the left and right directions; the front and rear inner walls of the pickling tank 32 are welded with second limiting plates 40, the second limiting plates 40 are right trapezoid, inclined edges face upwards, long edges are perpendicular to the pickling tank 32, right-angle grooves 41 propped against the positioning plates 15 are formed in the short edges, the second limiting plates 40 can be guided into the pickling tank 32 through the structure of limiting the second limiting plates 40, and the displacement of the positioning plates 15 is limited in the front, rear, left and right directions; as shown in fig. 13, a side edge of the bearing plate 26 is welded on the inner side wall of the pickling tank 32, the bearing plate 26 abuts against the concave cone interface 17, and the displacement of the positioning plate 15 can be limited in the lower direction by arranging the bearing plate 26, so that five degrees of freedom of the positioning plate 15 are limited, the stable rotation of the roller 1 in the pickling tank 32 is ensured, the upward degree of freedom is not limited, and the lifting of the roller 1 in the production line is facilitated.

As shown in fig. 16, as an optimization of the embodiment, considering the lifting problem of the drum 1, a first suspension rod 42 is fixedly connected to the gap of the positioning plate 15, the first suspension rod 42 is located at the upper part of the positioning plate 15, and the right end of the first suspension rod 42 extends to the outer side of the positioning plate 15; the end face of the locating plate 15 on the left side is fixedly connected with a pair of second suspenders 43, the second suspenders 43 and the first suspenders 42 are located on the same horizontal plane 20, the left ends of the second suspenders 43 and the first suspenders 42 extend to the outer side of the locating plate 15, the mechanized picking and placing process of the roller 1 can be realized through the arrangement of the first suspenders 42 and the second suspenders 43, the pretreatment process of the magnetic sheet is completed by specifically utilizing the left-right moving function, the up-down moving function and the front-back moving function of the lifter 54, the first suspenders 42 are directly connected with the two locating plates 15, the stress in the lifting process is uniform, and the safety is good.

As shown in fig. 17-18, as an optimization of the embodiment, considering the problem of the rotation driving of the drum 1, a main shaft 44 is connected in the gap of the positioning plate 15 through a bearing, and the right end of the main shaft 44 extends to the outer side of the positioning plate 15; a second gear 45 is connected to the outer portion of the main shaft 44 by a key, and the second gear 45 is engaged with the first gear 35; the side wall of the main shaft 44 is connected with a third gear 46 through a key, and the third gear 46 is close to the left positioning plate 15; a driven shaft 47 is connected in the gap of the positioning plate 15 through a bearing; the side wall of the driven shaft 47 is connected with fourth gears 48 which are symmetrically arranged through keys, the fourth gears 48 on the right side are meshed with the third gears 46, and the fourth gears 48 on the left side are meshed with the fluted disc 5; as shown in fig. 19, the fixed shaft 7, the main shaft 44 and the driven shaft 47 are located on the same vertical plane 20, the vertical plane 20 is the surface where the center line of the positioning plate 15 is located, after the drum 1 is placed in the pickling tank 32, the gear motor 34 is started to drive the first gear 35 to rotate, the first gear 35 drives the second gear 45 and the third gear 46 to synchronously rotate, the third gear 46 drives the two fourth gears 48 to synchronously rotate, the fourth gear 48 on the right side drives the fluted disc 5 to rotate, and the rotation of the drum 1 in the pickling tank 32 is realized, so that the neodymium iron boron magnetic sheets and the pickling solution uniformly and fully react.

As shown in fig. 20, as optimization of an embodiment, considering that ash hanging on the surface of a magnetic sheet can fall off during ultrasonic washing, but the falling speed is slower, the supporting rod 38 is replaced by copper rods 49, as shown in fig. 21-22, the copper rods 49 on two sides are respectively connected with a positive power supply and a negative power supply, the copper rods 49 on the same side are connected in series through a connecting wire 50, one copper rod 49 is connected with a power supply, the other copper rod 49 is connected with a conductive head 52 through an insulating wire 51, as shown in fig. 23, the insulating wire 51 penetrates through a fixed shaft 7 to put the conductive head 52 into the roller 1, the copper rods 49 are connected into a direct current circuit, the pickling solution enables the whole to form a closed loop, the conductive head 52 on one side flows out of electrons to send out oxidation reaction, the conductive head 52 on the other side flows into electrons to generate reduction reaction, and the ash hanging on the surface of the magnetic sheet can be thoroughly cleaned.

Example two

As shown in fig. 24, unlike the embodiment, in consideration of the liquid inlet problem of the convex cone interface 22, the pipe body 23 of the convex cone interface 22 is connected with the pump body 29 through the liquid inlet pipeline 30, the liquid outlet of the pump body 29 is led into the pickling tank 32 through the liquid outlet pipeline 28, the filter 53 is arranged on the liquid outlet pipeline 28, the pump body 29 is started, the pickling solution in the pickling tank 32 can be extracted from the liquid outlet pipeline 28, the ash hanging can be filtered in the flowing process, and then the cleaning solution is forcedly injected into the roller 1 from the liquid inlet pipeline 30, so that the forceful flushing of the forceful magnetic sheets is realized, and the pickling solution is saved.

Considering that the locating plate and each gear of the roller are stained with the pickling solution in the pretreatment process, the common cleaning water tank is difficult to clean completely, and if the pickling solution is brought into the plating solution, the pollution of the plating solution is caused, so that the product quality is affected, and the plating solution is scrapped. As shown in fig. 25, in order to realize electroplating production of the neodymium iron boron magnetic sheet, an automatic pretreatment system is further provided, which comprises the following steps:

s1: lifting the positioning plate 15 by a lifter 54, lifting the synchronous roller 1, and placing the roller 1 into a charging groove 55 for charging;

s2: lifting the positioning plate 15 by a lifting machine 54, lifting the roller 1 at the same time, placing the roller 1 with finished charging into a first ultrasonic cleaning tank 56 for cleaning, and continuously rotating the roller 1 during cleaning;

s3: lifting the positioning plate 15 by a lifting machine 54, lifting the roller 1 at the same time, placing the roller 1 subjected to the first ultrasonic cleaning into a second ultrasonic cleaning tank 57 for cleaning, and continuously rotating the roller 1 during cleaning;

s3: lifting the positioning plate 15 by a lifting machine 54, lifting the roller 1, placing the roller 1 subjected to the second ultrasonic cleaning into a cleaning water tank 58 for cleaning, and continuously rotating the roller 1 during cleaning;

s4: lifting the positioning plate 15 by a lifter 54, lifting the roller 1 at the same time, placing the cleaned roller 1 into a first pickling tank 59 for pickling, continuously rotating the roller 1 during cleaning, and forcibly injecting pickling solution into the roller 1;

s5: lifting the positioning plate 15 by a lifting machine 54, lifting the roller 1 at the same time, placing the roller 1 subjected to the first pickling into a first washing tank 60 for washing, continuously rotating the roller 1 during washing, and forcibly injecting water into the roller 1;

s6: lifting the positioning plate 15 by a lifter 54, lifting the roller 1 at the same time, placing the roller 1 subjected to the first water washing into a third ultrasonic cleaning tank 61 for cleaning, and continuously rotating the roller 1 during cleaning;

s7: lifting the positioning plate 15 by a lifter 54, lifting the roller 1 at the same time, placing the roller 1 subjected to the ultrasonic cleaning for the third time into a first high-level water washing tank 62 for cleaning, continuously rotating the roller 1 during cleaning, and immersing the positioning plate 15 in water;

s8: lifting the positioning plate 15 by a lifting machine 54, lifting the roller 1 at the same time, placing the roller 1 subjected to the first high-level water washing into a second pickling tank 63 for pickling, continuously rotating the roller 1 during cleaning, and forcibly injecting pickling solution into the roller 1, wherein the concentration of the used pickling solution is lower than that of the first pickling solution;

s9: lifting the positioning plate 15 by a lifting machine 54, lifting the roller 1 at the same time, placing the roller 1 subjected to the second pickling into a fourth ultrasonic cleaning tank 64 for cleaning, and continuously rotating the roller 1 during cleaning;

s10: lifting the positioning plate 15 by a lifter 54, lifting the roller 1 at the same time, placing the roller 1 subjected to the ultrasonic cleaning for the fourth time into a second washing tank 65 for washing, continuously rotating the roller 1 during washing, and forcibly injecting water into the roller 1;

s11: lifting the positioning plate 15 by a lifter 54, lifting the roller 1 at the same time, placing the roller 1 subjected to the second water washing into a second high-level water washing tank 66 for washing, continuously rotating the roller 1 during washing, and immersing the positioning plate 15 in water;

s12: the positioning plate 15 is lifted by the lifter 54, and the roller 1 is lifted, the roller 1 after the second high-level water washing is put into the electrolytic ash removing groove 67 for ash removal, and the roller 1 continuously rotates during ash removal, so that the roller 1 after ash removal can enter the electroplating process.

It will be understood that the invention has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The forced flushing device before rare earth permanent magnet electroplating comprises a roller (1) and is characterized in that the roller (1) is prismatic in shape, and uniformly arranged through holes (3) are machined on the outer surface of the roller (1); an end cover (4) for closing the opening is adhered to one port of the roller (1), and a fluted disc (5) for closing the opening is adhered to the other port of the roller; the centers of the fluted disc (5) and the end cover (4) are provided with a fixed shaft (7); the end face of one fixed shaft (7) is provided with a liquid injection channel (8) communicated with the inner cavity of the roller (1); cutting a side plate (9) of the roller (1) as a feed opening (10), wherein the side plate (9) is detachably fixed with the roller (1); the device also comprises a positioning plate (15) connected with the fixed shaft (7); a limiting rod (16) is arranged in the gap between the two positioning plates (15); the outer side of the positioning plate (15) is provided with a concave cone interface (17); a runner communicated with the liquid injection channel (8) is processed in the concave cone interface (17); a convex cone connector (22) is nested in a flow channel of the concave cone connector (17), and the convex cone connector (22) is connected with an acid conveying pipeline to inject liquid into the flow channel; the convex cone connector (22) is connected with a pump body (29) through a liquid outlet pipeline (28), and a liquid inlet of the pump body (29) is connected with an acid storage tank (31) through a liquid inlet pipeline (30); the washing machine further comprises a pickling tank (32), and a speed reducing motor (34) is arranged on the top surface of the pickling tank (32); a first gear (35) is arranged at the shaft end of the speed reducing motor (34); the upper edge of the pickling tank (32) is provided with a supporting seat (36); the outer end face of the positioning plate (15) is provided with a supporting rod (38), and the supporting rod (38) is arranged on the supporting seat (36).

2. The forced flushing device before rare earth permanent magnet electroplating according to claim 1, wherein the left and right inner walls of the pickling tank (32) are provided with first limiting plates (39), and the short sides of the first limiting plates (39) are abutted against the end surfaces of the positioning plates (15); the inner walls of the front and rear of the pickling tank (32) are provided with second limiting plates (40), right-angle grooves (41) propped against the positioning plates (15) are formed in the short sides of the second limiting plates (40), and bearing plates (26) used for fixing the convex cone connectors (22) are arranged on the inner side walls of the pickling tank (32).

3. The forced flushing device before rare earth permanent magnet electroplating according to claim 1, wherein a first suspender (42) is arranged in a gap of the positioning plate (15), and one end of the first suspender (42) extends to the outer side of the positioning plate (15); a pair of second suspenders (43) are arranged on the end face of the positioning plate (15) on the other side, and the second suspenders (43) and the first suspenders (42) are positioned on the same horizontal plane (20).

4. The forced flushing device before rare earth permanent magnet electroplating according to claim 1, wherein a main shaft (44) is arranged in a gap of the positioning plate (15), and one end of the main shaft (44) extends to the outer side of the positioning plate (15); a second gear (45) is arranged at the outer extension part of the main shaft (44), and the second gear (45) is meshed with the first gear (35); a third gear (46) is arranged on the side wall of the main shaft (44); a driven shaft (47) is arranged in the gap of the positioning plate (15); the side wall of the driven shaft (47) is provided with fourth gears (48) which are symmetrically arranged, the fourth gear (48) on one side is meshed with the third gear (46), and the fourth gear (48) on the other side is meshed with the fluted disc (5).

5. The forced flushing device before rare earth permanent magnet electroplating according to claim 1, wherein the supporting rod (38) is replaced by copper bars (49), the copper bars (49) on two sides are respectively connected with a positive power supply and a negative power supply, the copper bars (49) on the same side are connected in series through a connecting wire (50), one copper bar (49) is connected with a power supply, the other copper bar (49) is connected with a conductive head (52) through an insulating wire (51), and the insulating wire (51) penetrates through the fixed shaft (7) to put the conductive head (52) into the roller (1).

6. The forced flushing device before rare earth permanent magnet electroplating according to claim 1, wherein the convex cone interface (22) is connected with a pump body (29) through a liquid inlet pipeline (30), a liquid outlet of the pump body (29) is led into the pickling tank (32) through a liquid outlet pipeline (28), and a filter (53) is arranged on the liquid outlet pipeline (28).

7. An automated pretreatment system employing the pre-plating forced flushing device of any one of claims 1-6, comprising the steps of:

s1: lifting the positioning plate (15) through a lifting machine (54), lifting the roller (1) at the same time, and placing the roller (1) into a charging groove (55) for charging;

s2: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) with finished charging into a first ultrasonic cleaning tank (56) for cleaning, and continuously rotating the roller (1) during cleaning;

s3: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) subjected to the first ultrasonic cleaning into a second ultrasonic cleaning tank (57) for cleaning, and continuously rotating the roller (1) during cleaning;

s3: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) subjected to the second ultrasonic cleaning into a cleaning water tank (58) for cleaning, and continuously rotating the roller (1) during cleaning;

s4: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the cleaned roller (1) into a first pickling tank (59) for pickling, continuously rotating the roller (1) during cleaning, and forcibly injecting pickling solution into the roller (1);

s5: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) subjected to the first pickling into a first washing tank (60) for washing, continuously rotating the roller (1) during washing, and forcibly injecting water into the roller (1);

s6: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) subjected to the first water washing into a third ultrasonic cleaning tank (61) for cleaning, and continuously rotating the roller (1) during cleaning;

s7: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) subjected to the third ultrasonic cleaning into a first high-level water washing tank (62) for cleaning, continuously rotating the roller (1) during cleaning, and immersing the positioning plate (15) in water;

s8: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) subjected to the first high-level water washing into a second pickling tank (63) for pickling, continuously rotating the roller (1) during cleaning, and forcedly injecting pickling solution into the roller (1), wherein the concentration of the used pickling solution is lower than that of the first pickling solution;

s9: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) subjected to the second pickling into a fourth ultrasonic cleaning tank (64) for cleaning, and continuously rotating the roller (1) during cleaning;

s10: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) subjected to the fourth ultrasonic cleaning into a second washing tank (65) for washing, continuously rotating the roller (1) during washing, and forcibly injecting water into the roller (1);

s11: lifting the positioning plate (15) by a lifting machine (54), lifting the roller (1) at the same time, placing the roller (1) subjected to the second water washing into a second high-level water washing tank (66) for washing, continuously rotating the roller (1) during washing, and immersing the positioning plate (15) in water;

s12: the locating plate (15) is lifted by the lifter (54), meanwhile, the roller (1) is lifted, the roller (1) which is subjected to secondary high-level water washing is placed into the electrolytic ash removal groove (67) for ash removal, the roller (1) continuously rotates during ash removal, and the roller (1) which is subjected to ash removal can enter an electroplating process.