Pretreatment device for special-shaped part before electrophoresis

By employing a synergistic design of the cleaning and drying drum, placement frame, active ring plate, top ball, cleaning drum, and brush bristles, the problem of stubborn impurities on the surface of irregularly shaped parts is solved, achieving efficient pretreatment of irregularly shaped parts before electrophoresis and ensuring the tight adhesion of the electrophoretic coating.

CN121314948APending Publication Date: 2026-01-13NANYANG HUABANG OUTDOOR PRODUCTS CO LTD
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Patent Information

Application Number
CN202511701618.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2026-01-13

AI Technical Summary

Technical Problem

Existing pickling pretreatment equipment is unable to completely remove stubborn impurities from the surface of irregularly shaped parts, especially in complex structures such as irregular grooves and protrusions, which affects the adhesion of subsequent electrophoretic coatings.

Method used

The system employs a coordinated design of a cleaning and drying bucket, a placement frame, an active ring plate, a placement ring plate, a top ball, a cleaning bucket, and brush bristles. The top ball lifts irregularly shaped parts to form a uniform gap, while the active ring plate drives the top ball to achieve dynamic disturbance. Combined with the brush bristles that rotate synchronously with the cleaning bucket and cleaning plate, the system achieves a synergistic acid washing effect of chemical dissolution, mechanical scrubbing, and dynamic disturbance.

Benefits of technology

Thoroughly remove stubborn impurities from the surface of irregularly shaped parts, improve the uniformity and thoroughness of surface treatment, and ensure the tight adhesion of subsequent electrophoretic coatings.

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Abstract

The invention discloses a pretreatment device for special-shaped parts before electrophoresis, and relates to the technical field of acid pickling, in particular to the pretreatment device for the special-shaped parts before electrophoresis, which comprises a bracket and a cleaning and drying barrel fixedly mounted on the bracket, and a placing frame capable of moving up and down is arranged at the right end in the cleaning and drying barrel; according to the pre-treatment device for the special-shaped part before electrophoresis, through cooperative arrangement of the cleaning and blow-drying barrel, the placing frame, the driving ring plate, a placing ring plate, a top ball, a cleaning barrel, a cleaning plate and bristles, the special-shaped part can be lifted by means of the top ball to form uniform gaps, the whole surface of the special-shaped part is fully wrapped by a pickling solution, and therefore the whole surface of the special-shaped part is cleaned; and meanwhile, the driving annular plate drives the top ball to achieve dynamic disturbance of the special-shaped part, brushing is conducted through the brush bristles, synchronously rotating, of the cleaning barrel and the cleaning plate, the contact angle and direction of the brush bristles and the special-shaped part are changed, and stubborn impurities of irregular parts such as grooves and protrusions are thoroughly removed.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pickling, more particularly, the present application relates to a pretreatment device for anisotropy before electrophoresis. BACKGROUND

[0002] Outdoor anisotropy is widely used in construction, machinery, transportation and other fields. Because it is exposed to wind, sun, rain and other complex outdoor environments for a long time, its surface is prone to oxidation and rust. Therefore, it is usually necessary to perform electrophoresis treatment during production. Electrophoresis treatment can form a uniform and dense protective coating on the surface of the anisotropy, effectively isolating the external corrosive medium, and significantly improving the corrosion resistance and service life of the anisotropy. The effect of the electrophoresis process is directly related to the quality of the surface pretreatment of the anisotropy. Only by completely removing impurities such as oil stains, rust, and oxide scales on the surface can the electrophoretic coating be tightly combined with the surface of the workpiece to avoid problems such as peeling and skinning. For example, the metal piece pretreatment device before electrophoresis has a vibration and heating structure. A connecting block is arranged in the middle of the lower end face of the treatment box. The connecting block is in contact with the cam on the rotating shaft. The first servo motor drives the rotating shaft to rotate. The extension spring causes the treatment box to oscillate up and down at a high frequency. The water temperature in the box can be controlled by the cooperation of the heating plate and the water temperature sensor. The above structure design greatly improves the cleaning speed, thereby improving the working efficiency of the device. However, the existing pickling pretreatment device still has obvious limitations when processing anisotropy. On the one hand, the structural characteristics of the anisotropy determine that its surface often has a large number of irregular grooves, raised edges and other complex structures. These parts have narrow spaces and special shapes, and the pickling liquid is difficult to fully penetrate. Even with the help of vibration, it is also difficult for the liquid to form effective flow in these dead angle areas, so that the impurities cannot be completely cleaned. On the other hand, the oxide scale and solidified oil stains and other impurities on the surface of some anisotropy have strong adhesion. It is difficult to completely strip these firmly adhered impurities by relying only on the chemical dissolution of the pickling liquid and the weak mechanical force generated by the vibration of the existing device. The residual impurities will directly affect the adhesion effect of the subsequent electrophoretic coating, resulting in defects such as pinholes and bubbles in the coating. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a pretreatment device for anisotropy before electrophoresis, which solves the problems raised in the background art.

[0004] The technical scheme of the present application is as follows: In order to achieve the above object, the present application is realized by the following technical scheme: a special-shaped part electrophoresis pretreatment device, comprising a support and a cleaning and drying barrel fixedly installed on the support, a placing frame capable of moving up and down is arranged at the right end in the cleaning and drying barrel, a driving ring plate capable of rotating is arranged on the inner bottom surface of the placing frame, the upper surface of the driving ring plate abuts against a placing ring plate, the placing ring plate is fixedly installed on the placing frame, a plurality of top balls capable of being suddenly pushed upward are uniformly arranged in the placing ring plate, a cleaning barrel capable of completely wrapping the placing ring plate is arranged directly above the placing ring plate, a cleaning plate capable of rotating synchronously with the cleaning barrel is arranged on the inner circumferential surface of the placing ring plate, and brush hairs are arranged on the inner wall of the cleaning barrel and the upper surface of the cleaning plate.

[0005] Preferably, a lead screw sliding table is fixedly connected to the right end of the front side of the cleaning and drying barrel, a lifting driving plate extending into the cleaning and drying barrel is fixedly connected to the front side of the sliding table, and one end of the lifting driving plate fixedly connected to the placing frame.

[0006] Preferably, a driven ring plate is fixedly connected to the outer circumferential surface of the driving ring plate, a limiting ring plate is fixedly connected to the outer circumferential surface of the driven ring plate, the limiting ring plate is rotationally connected to the inner bottom surface of the placing frame, and a plurality of limiting driving components for promoting the synchronous rotation of the cleaning barrel and the driven ring plate thereof are arranged on the upper surface of the driven ring plate.

[0007] Preferably, the limiting driving components comprise a plurality of second movable mounting grooves uniformly arranged on the upper surface of the driven ring plate, a first limiting column extending out of the second movable mounting groove is slidably connected in the second movable mounting groove, a third spring is fixedly connected to the bottom end of the first limiting column, one end of the third spring away from the first limiting column is fixedly connected to the inner bottom surface of the second movable mounting groove, and a plurality of driven limiting grooves matching the size of the first limiting column are arranged on the lower surface of the cleaning barrel.

[0008] Preferably, a fixed ring plate is fixedly connected to the bottom of the inner circumferential surface of the placing ring plate, a first limiting rod extending around the driving ring plate and arranged on the placing frame is fixedly connected to the lower surface of the fixed ring plate, a first support plate extending to directly above the cleaning barrel is fixedly connected to the rear end of the upper surface of the placing frame, a limiting pulling column capable of rotating and sliding is arranged on one end of the first support plate away from the placing frame, and the bottom end of the limiting pulling column is fixedly connected to the cleaning barrel.

[0009] Preferably, a driven rod is fixedly connected to the center of the lower surface of the cleaning plate, a driving barrel capable of moving up and down is arranged at the bottom end of the driven rod, a driving motor is fixedly connected to the lower surface of the cleaning and drying barrel, a driving shaft extending into the cleaning and drying barrel is arranged at the top end of the driving motor, and the driving barrel can be sleeved on the driving shaft.

[0010] Preferably, the lower surface of the driven rod is provided with a third movable mounting groove, and one end of a driving rod is fixedly connected to the driving barrel and slidably connected in the third movable mounting groove, and the top end of the driving rod is fixedly connected with a second spring, and one end of the second spring away from the driving rod is fixedly connected to the top surface in the third movable mounting groove.

[0011] Preferably, the middle part of the driven rod is fixedly connected with a first driving gear, the inner circumferential surface of the driving ring plate is fixedly connected with an inner toothed ring plate, the first driving gear is toothed with a second driving gear between the fixed ring plate, the inner circumferential surface of the second driving gear is rotatably connected with a second limiting column, one end of the second limiting column away from the second driving gear is fixedly connected with a second limiting rod, and one end of the second limiting rod away from the second limiting column is fixedly connected to the placing frame.

[0012] Preferably, the upper surface of the driving ring plate is provided with a first movable mounting groove, and a top block with one end exposed outside is slidably connected in the first movable mounting groove, the lower surface of the top block is fixedly connected with a first spring with one end arranged on the bottom surface in the first movable mounting groove, and the surface of the top block is provided with a friction plate.

[0013] Preferably, the upper surface of the placing ring plate is uniformly penetrated by a plurality of limiting openings, and a plurality of top balls are movably connected in the corresponding limiting openings, and the outer surface of the top ball is uniformly fixedly connected with a plurality of hemispherical blocks.

[0014] Beneficial effects The present application provides a special-shaped part pretreatment device before electrophoresis, which has the following beneficial effects: The special-shaped part pretreatment device before electrophoresis, through the cooperative arrangement of the cleaning and drying barrel, the placing frame, the driving ring plate, the placing ring plate, the top ball, the cleaning barrel, the cleaning plate and the bristles, the top ball can be used to lift the special-shaped part to form a uniform gap, so that the pickling liquid can fully wrap the entire surface of the special-shaped part, and the driving ring plate can drive the top ball to realize dynamic disturbance of the special-shaped part, and the bristles can be brushed by rotating synchronously with the cleaning barrel and the cleaning plate, so that the contact angle and position of the bristles and the special-shaped part are changed, and the stubborn impurities in the recesses, protrusions and other irregular parts are completely removed, the cooperative pickling effect of chemical dissolution, mechanical brushing and dynamic disturbance is achieved, and the surface treatment uniformity and completeness of the special-shaped part before electrophoresis are greatly improved, thereby providing protection for the close combination of the subsequent electrophoretic coating. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the cooperation structure of the placing frame and the cleaning barrel of the present application; Figure 3 It is a schematic diagram of the cross-sectional structure of the driving ring plate of the present application; Figure 4The structure schematic view of the active rod and the driving barrel of the application is shown in the figure. Figure 5 The structure schematic view of the placing ring plate upside down of the application is shown in the figure. Figure 6 The structure schematic view of the top block of the application is shown in the figure. Figure 7 The structure schematic view of the cleaning plate of the application is shown in the figure.

[0016] In the figure: 1, cleaning and drying barrel; 2, drying and placing disc; 3, fan; 4, lifting driving plate; 5, placing frame; 6, friction plate; 7, first supporting plate; 8, cleaning barrel; 9, placing ring plate; 10, driven ring plate; 11, limiting ring plate; 12, top ball; 13, first limiting column; 14, half ball block; 15, limiting port; 16, active ring plate; 17, top block; 18, first spring; 19, first movable mounting groove; 20, cleaning plate; 21, driven rod; 22, fixed ring plate; 23, first limiting rod; 24, first driving gear; 25, second driving gear; 26, inner tooth ring plate; 27, second limiting column; 28, second limiting rod; 29, driven limiting groove; 30, driving barrel; 31, second spring; 32, active rod; 33, third spring; 34, second movable mounting groove; 35, limiting pulling column. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0018] The existing pickling pretreatment device still has obvious limitations when processing special-shaped parts: on the one hand, the structural characteristics of the special-shaped parts determine that the surface thereof is often distributed with a large number of irregular grooves, raised edges and other complex structures. These parts have narrow space and special shape, and the pickling liquid is difficult to fully penetrate. Even with the help of oscillation, it is also difficult to make the liquid form effective flow in these dead angle areas, so that the impurities cannot be completely cleaned. On the other hand, the adhesion of the impurities such as oxide scale and solidified oil stains on the surface of some special-shaped parts is extremely strong. Only the chemical dissolution of the pickling liquid and the weak mechanical force generated by the oscillation of the existing device can hardly completely strip these firmly adhered impurities. The residual impurities will directly affect the adhesion effect of the subsequent electrophoretic coating, resulting in defects such as pinholes and bubbles in the coating. In order to solve the above problems, the embodiment is invented.

[0019] Please refer to Figures 1 to 7The application provides a technical scheme: a special-shaped part electrophoresis pretreatment device, which comprises a support and a cleaning and drying barrel 1 fixedly installed on the support, a placing frame 5 capable of moving up and down is arranged at the right end in the cleaning and drying barrel 1, a drying placing disc 2 is arranged at the left end in the cleaning and drying barrel 1, a fan 3 is installed on the support and extends to the top of the drying placing disc 2, the special-shaped part can be placed on the drying placing disc 2 after pickling, the residual pickling liquid on the surface of the special-shaped part is blown dry through the operation of the fan 3, and it is ensured that the subsequent treatment is not affected, the inner bottom surface of the placing frame 5 is provided with a driving ring plate 16 capable of rotating, the upper surface of the driving ring plate 16 is in abutment with a placing ring plate 9, the placing ring plate 9 is fixedly installed on the placing frame 5, a plurality of top balls 12 capable of being suddenly pushed upward are uniformly arranged in the placing ring plate 9, a cleaning barrel 8 capable of completely wrapping the placing ring plate 9 is arranged above the placing ring plate 9, and the inner circumferential surface of the placing ring plate 9 is provided with a cleaning plate 20 capable of rotating synchronously with the cleaning barrel 8, and the inner wall of the cleaning barrel 8 and the upper surface of the cleaning plate 20 are both provided with bristles. The right part of the cleaning and drying barrel 1 is filled with pickling liquid, and an operator can place the special-shaped part to be pickled on the placing ring plate 9. During pickling, the cleaning barrel 8 and the cleaning plate 20 rotate synchronously, and the bristles on the two rotate to mechanically clean the special-shaped part, greatly improving the pickling effect.

[0020] Please refer to Figure 1 The right end of the front side of the cleaning and drying barrel 1 is fixedly connected with a lead screw sliding table, the front side of the sliding table is fixedly connected with a lifting driving plate 4 extending into the cleaning and drying barrel 1, and one end of the lifting driving plate 4 extending into the cleaning and drying barrel 1 is fixedly connected to the placing frame 5. The lead screw sliding table adopts the prior art, and its working principle is not described here. When the lead screw sliding table operates, the lifting driving plate 4 can be driven to move up and down, thereby driving the placing frame 5 to synchronously ascend and descend. When the placing frame 5 ascends to the maximum stroke, an operator can place the special-shaped part on the placing ring plate 9. After the special-shaped part is placed, the placing frame 5 descends to the maximum stroke, and the special-shaped part can be completely immersed in the pickling liquid.

[0021] Meanwhile, two guide rods are fixedly connected to the inner side of the cleaning and drying barrel 1, two limiting sliding blocks are fixedly connected to the rear side of the placing frame 5, and one end of each limiting sliding block is slidably arranged on a corresponding guide rod. Through the sliding cooperation of the limiting sliding blocks and the guide rods, the running stability of the placing frame 5 during the ascending and descending process can be significantly improved, so that the placing frame 5 is prevented from deviating or shaking, and the accurate implementation of the subsequent pickling and cleaning actions is ensured.

[0022] Please refer to Figures 1 to 7 The outer circumferential surface of the driving ring plate 16 is fixedly connected with a driven ring plate 10, the outer circumferential surface of the driven ring plate 10 is fixedly connected with a limiting ring plate 11 rotatably connected to the inner bottom surface of the placing frame 5, and the upper surface of the driven ring plate 10 is provided with a plurality of limiting driving components for driving the cleaning barrel 8 and the driven ring plate 10 to rotate synchronously. The limiting driving part comprises a plurality of second movable mounting grooves 34 evenly arranged on the upper surface of the driven ring plate 10, a first limiting column 13 with one end extending out of the second movable mounting groove 34 is slidably connected in the second movable mounting groove 34, the bottom end of the first limiting column 13 is fixedly connected with a third spring 33, one end of the third spring 33 away from the first limiting column 13 is fixedly connected to the inner bottom surface of the second movable mounting groove 34, the lower surface of the cleaning bucket 8 is provided with a plurality of driven limiting grooves 29 matched with the first limiting column 13 in size, the rear end of the upper surface of the placing frame 5 is fixedly connected with a first supporting plate 7 with one end extending to the position directly above the cleaning bucket 8, and the end of the first supporting plate 7 away from the placing frame 5 is provided with a limiting pulling column 35 capable of rotating and sliding, and the bottom end of the limiting pulling column 35 is fixedly connected to the cleaning bucket 8; Therefore, the operator places the special-shaped part in front of the placing ring plate 9, pulls the limiting pulling column 35 upward, and drives the cleaning bucket 8 to move upward synchronously, during the pulling process, the operator naturally rotates the limiting pulling column 35 slightly, causing the driven limiting groove 29 to be misaligned with the first limiting column 13, and after the limiting pulling column 35 is released, the bottom end of the cleaning bucket 8 abuts against the upper surface of the driven ring plate 10, compresses the first limiting column 13 to retract into the second movable mounting groove 34, and makes the third spring 33 in a compressed state; When the driving ring plate 16 rotates under the action of external force, the driven ring plate 10 and the first limiting column 13 rotate synchronously, since the lower surface of the cleaning bucket 8 and the upper surface of the driven ring plate 10 are both smooth, the driven ring plate 10 does not drive the cleaning bucket 8 to move synchronously when rotating, when the rotating first limiting column 13 is aligned with the driven limiting groove 29, the third spring 33 releases the elastic potential energy and pushes the first limiting column 13 to insert into the driven limiting groove 29, at this time, the driven ring plate 10 can drive the cleaning bucket 8 to rotate synchronously through the first limiting column 13.

[0023] The inner circumferential surface of the placing ring plate 9 is fixedly connected with a fixed ring plate 22 at the bottom, the lower surface of the fixed ring plate 22 is fixedly connected with a first limiting rod 23 with one end arranged on the placing frame 5 by passing around the driving ring plate 16, as shown in Figure 3 The first limiting rod 23 cooperates with the fixed ring plate 22 to fix the placing ring plate 9 on the placing frame 5, when the placing frame 5 moves up and down, it can drive the placing ring plate 9 to move up and down synchronously, one end of the first limiting rod 23 is fixedly connected to the placing frame 5, and the first limiting rod 23 passes around the driving ring plate 16 during installation, therefore, when the driving ring plate 16 rotates, the first limiting rod 23 does not interfere with the normal operation.

[0024] The center of the lower surface of the cleaning plate 20 is fixedly connected with a driven rod 21, the bottom end of the driven rod 21 is provided with a driving barrel 30 capable of moving up and down, the lower surface of the cleaning and drying barrel 1 is fixedly connected with a driving motor whose top end driving shaft extends into it, and the driving barrel 30 can be sleeved on the driving shaft, wherein the driving barrel 30 is rectangular in cross section when viewed from above, the matching part of the top end driving shaft of the driving motor and the driving barrel 30 is also designed to be rectangular in cross section when viewed from above, when the driving barrel 30 is covered on the driving shaft of the driving motor, the driving motor can directly drive the driving barrel 30 to rotate synchronously.

[0025] Please refer to Figures 1 to 2 A third movable mounting groove is opened in the lower surface of the driven rod 21, and a driving rod 32 having one end fixedly connected to the driving barrel 30 is slidably connected in the third movable mounting groove, the top end of the driving rod 32 is fixedly connected with a second spring 31, and the end of the second spring 31 away from the driving rod 32 is fixedly connected to the top surface in the third movable mounting groove; Wherein the driving rod 32 can only slide up and down in the third movable mounting groove, when the placing frame 5 drives the placing ring plate 9 to move downward, it will in turn synchronously drive the cleaning plate 20, the driven rod 21, the driving rod 32 and the driving barrel 30 to move downward; Because it is inevitable to rotate the cleaning plate 20 when placing special-shaped parts, the opening in the lower surface of the driving barrel 30 will be misaligned with the driving shaft of the driving motor, when the driving barrel 30 moves downward to abut against the driving shaft, the driving barrel 30 and the driving rod 32 stop moving downward, and the driven rod 21 continues to move downward with the placing frame 5 and compresses the second spring 31; After the driving motor is started, the driving shaft starts to rotate, at this time the second spring 31 releases the elastic potential energy and pushes the driving barrel 30 to move downward to reset (when the opening in the lower surface of the driving barrel 30 corresponds to the driving shaft), so that the opening is accurately matched with the driving shaft, the driving barrel 30 rotates synchronously with the shaft, and the rotating force of the driving barrel 30 is transmitted to the driven rod 21 through the driving rod 32, thereby driving the cleaning plate 20 to rotate synchronously.

[0026] Please refer to Figures 1 to 7The middle part of the driven rod 21 is fixedly connected with a first driving gear 24, the inner circumferential surface of the driving ring plate 16 is fixedly connected with an inner tooth ring plate 26, the second driving gear 25 is in gear connection between the first driving gear 24 and the fixed ring plate 22, and the outer circumferential surface of the second driving gear 25 is simultaneously in gear connection with the first driving gear 24 and the inner tooth ring plate 26, the inner circumferential surface of the second driving gear 25 is rotatably connected with a second limiting column 27, one end of the second limiting column 27 away from the second driving gear 25 is fixedly connected with a second limiting rod 28, and the other end of the second limiting rod 28 away from the second limiting column 27 is fixedly connected on the placing frame 5, so that when the driven rod 21 rotates, the first driving gear 24 is driven to rotate synchronously, the first driving gear 24 drives the second driving gear 25 to rotate through meshing transmission, and then the inner tooth ring plate 26 is driven to rotate, and finally the driving ring plate 16 is driven to rotate synchronously by the inner tooth ring plate 26.

[0027] The upper surface of the driving ring plate 16 is provided with a first movable mounting groove 19, the first movable mounting groove 19 is slidably connected with a top block 17 with one end exposed outside, the lower surface of the top block 17 is fixedly connected with a first spring 18 with one end arranged on the bottom surface of the first movable mounting groove 19, and the surface of the top block 17 is provided with a friction plate 6, so that when the driving ring plate 16 rotates, the top block 17 is driven to rotate synchronously. The upper surface of the placing ring plate 9 is uniformly penetrated by a plurality of limiting openings 15, a plurality of top balls 12 are movably connected in the corresponding limiting openings 15, and the outer surface of the top ball 12 is uniformly fixedly connected with a plurality of hemispherical blocks 14, wherein the top ball 12 can rotate and move up and down in the limiting opening 15.

[0028] Wherein when the staff puts the special-shaped part on the placing ring plate 9, the plurality of top balls 12 will jointly lift the special-shaped part, forming a uniform gap between the special-shaped part and the placing ring plate 9, based on the principle of interface mass transfer, the pickling solution can wrap the entire surface of the special-shaped part without any obstruction, fundamentally avoiding the problem of incomplete pickling caused by the local area not being able to contact the acid solution, greatly improving the pickling uniformity, and at the same time, the top block 17 will run synchronously with the continuous rotation of the driven ring plate 16, and the top end of the top block 17 will touch the lower surface of the placing ring plate 9 during operation. At this time, the first spring 18 is in a compressed energy storage state, and when the top block 17 completely separates from the lower surface of the placing ring plate 9, the first spring 18 quickly releases the elastic potential energy, pushing the top block 17 to suddenly rise upwards, and then driving one end of the special-shaped part to instantaneously tilt, which forms an efficient synergy with the continuous bristle brushing of the cleaning plate 20 and the cleaning barrel 8: the instantaneous attitude mutation of the special-shaped part can directly change the contact angle and force point of the bristles with the workpiece surface, making it easier for the bristles to penetrate into the recesses, blind holes, edges and other irregular structures of the special-shaped part, avoiding the cleaning blind area that is difficult to reach in static brushing, and at the same time, the sudden tilting of the workpiece will produce slight vibration, quickly removing the loose oxide scale, oil stains and other impurities on the workpiece surface, preventing them from accumulating in the gap or contact surface. In addition, the attitude change can also drive the pickling solution to flow rapidly around the workpiece, ensuring that fresh acid solution is supplied to the brushing area in time, complementing the mechanical stripping effect of the bristles, greatly improving the removal efficiency of stubborn impurities, and ensuring uniform and complete pickling of the surface of the special-shaped part; When the subsequent top block 17 continues to rotate, the friction plate 6 on its surface will generate friction with the hemispherical block 14 on the top ball 12, and under the action of this friction, the top ball 12 will rotate autonomously in the limiting port 15, and then drive the special-shaped part to produce slight rotation and displacement through the hemispherical block 14. Due to the irregular shape of the special-shaped part, the pressure on each top ball 12, the contact angle and number of hemispherical blocks 14 are different, so the inclined attitude of the special-shaped part on the placing ring plate 9 will continuously change irregularly. Therefore, this irregular change allows the bristles on the cleaning plate 20 and the cleaning barrel 8 to contact the surface of the special-shaped part from different angles and different directions. Even for the recesses, blind holes, edges and other irregular parts of the special-shaped part that are difficult to reach by traditional pickling, the bristles can also achieve omnidirectional brushing through the dynamic adjustment of the workpiece attitude, completely removing the impurities attached to these dead angles, and finally achieving the synergistic pickling effect of "chemical dissolution + mechanical brushing + dynamic disturbance", greatly improving the surface treatment quality of the special-shaped part before electrophoresis.

[0029] In summary, the profiled piece electrophoresis pretreatment device uses, the operator first starts to clean the front side of the blow-dry barrel 1 screw slide table, the screw slide table drives the lifting drive plate 4 to move upwards, and then drives the placing frame 5 to rise to the maximum stroke synchronously, then the operator pulls the limiting pull column 35 on the first support plate 7 upwards, drives the cleaning barrel 8 to move upwards, and slightly rotates the limiting pull column 35 during the pulling process, so that the driven limiting groove 29 on the lower surface of the cleaning barrel 8 is misaligned with the first limiting column 13 on the driven ring plate 10, and after the limiting pull column 35 is released, the bottom end of the cleaning barrel 8 abuts against the upper surface of the driven ring plate 10, compressing the first limiting column 13 to retract into the second movable mounting groove 34, and the third spring 33 is in a compressed state; Then the operator places the profiled piece to be pickled on the placing ring plate 9, and the plurality of top balls 12 jointly lift the profiled piece, so that an even gap is formed between the profiled piece and the placing ring plate 9, after the profiled piece is placed, the screw slide table reverses the operation, drives the lifting drive plate 4 and the placing frame 5 to descend to the maximum stroke synchronously, and the profiled piece is completely immersed in the pickling liquid contained in the right part of the cleaning blow-dry barrel 1, in this process, the placing ring plate 9 drives the cleaning plate 20, the driven rod 21, the driving rod 32 and the driving barrel 30 to descend synchronously, when the driving barrel 30 abuts against the driving shaft of the driving motor at the bottom of the cleaning blow-dry barrel 1, the driving barrel 30 and the driving rod 32 stop descending, and the driven rod 21 continues to descend with the placing frame 5 and compresses the second spring 31; After the driving motor is started, the driving shaft of the driving motor starts to rotate, the second spring 31 releases the elastic potential energy, pushes the driving barrel 30 to descend and reset, and accurately matches the driving shaft, the driving barrel 30 rotates synchronously with the driving shaft, the rotating force is transmitted to the driven rod 21 through the driving rod 32, drives the cleaning plate 20 to rotate, the first driving gear 24 in the middle of the driven rod 21 drives the second driving gear 25 to rotate through meshing transmission, the second driving gear 25 drives the inner tooth ring plate 26 on the inner surface of the driving ring plate 16 to rotate, and then drives the driving ring plate 16 to rotate synchronously, the driving ring plate 16 drives the driven ring plate 10 and the first limiting column 13 on the outer surface to rotate, when the rotating first limiting column 13 is aligned with the driven limiting groove 29 of the cleaning barrel 8, the third spring 33 releases the elastic potential energy, pushes the first limiting column 13 to insert into the driven limiting groove 29, and the driven ring plate 10 drives the cleaning barrel 8 to rotate synchronously through the first limiting column 13, and the inner wall of the cleaning barrel 8 and the bristles on the cleaning plate 20 continuously mechanically brush the surface of the profiled piece; At the same time, the top block 17 on the active ring plate 16 rotates synchronously with the active ring plate 16, and when in operation, the top end of the top block 17 abuts against the lower surface of the placement ring plate 9 to compress the first spring 18 to store energy, when the top block 17 completely separates from the lower surface of the placement ring plate 9, the first spring 18 quickly releases the elastic potential energy to push the top block 17 to suddenly lift up the top ball 12, drive the one end of the special-shaped part to instantaneously tilt, realize dynamic disturbance, when the subsequent top block 17 continues to rotate, the friction plate 6 on the surface thereof generates friction force with the semispherical block 14 on the top ball 12 to drive the top ball 12 to rotate in the limiting opening 15, and then drive the special-shaped part to slightly rotate and displace, so that the special-shaped part continuously changes in irregular manner in the inclined posture, and ensure that the bristles cover all irregular positions of the special-shaped part, such as grooves, blind holes and edges. After the pickling is completed, the lead screw sliding table drives the lifting driving plate 4 and the placement frame 5 to rise again, the operator takes out the special-shaped part and places it on the blow-drying placement disc 2 at the left end of the cleaning and blow-drying barrel 1, starts the fan 3 on the support, and the fan 3 blows air directly above the blow-drying placement disc 2 to blow and dry the pickling liquid remaining on the surface of the special-shaped part, so as to avoid affecting the subsequent electrophoresis treatment.

[0030] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In addition, it should be further pointed out that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical solution and inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A device for pretreating profiled parts before electrophoresis, comprising a support and a cleaning and drying barrel (1) fixedly mounted on the support, characterized in that: The right end in the cleaning and blow-drying barrel (1) is provided with a placing frame (5) capable of moving up and down, the inner bottom surface of the placing frame (5) is provided with a driving ring plate (16) capable of rotating, the upper surface of the driving ring plate (16) abuts against a placing ring plate (9), the placing ring plate (9) is fixedly installed on the placing frame (5), a plurality of top balls (12) capable of being suddenly upwardly pushed are uniformly arranged in the placing ring plate (9), a cleaning barrel (8) capable of completely wrapping the placing ring plate (9) is arranged above the placing ring plate (9), and a cleaning plate (20) capable of rotating synchronously with the cleaning barrel (8) is arranged on the inner circumferential surface of the placing ring plate (9), and the inner wall of the cleaning barrel (8) and the upper surface of the cleaning plate (20) are both provided with bristles.

2. A device for electrophoretic pre-treatment of a profiled element according to claim 1, characterized in that: The right end of the front side of the cleaning and blow-drying barrel (1) is fixedly connected with a lead screw sliding table, the front side of the sliding table is fixedly connected with a lifting driving plate (4) extending into the cleaning and blow-drying barrel (1), and one end of the lifting driving plate (4) extending into the cleaning and blow-drying barrel (1) is fixedly connected with the placing frame (5).

3. A device for electrophoretic pre-treatment of a profiled element according to claim 2, characterized in that: The outer circumferential surface of the driving ring plate (16) is fixedly connected with a driven ring plate (10), the outer circumferential surface of the driven ring plate (10) is fixedly connected with a limiting ring plate (11), the limiting ring plate (11) is rotatably connected with the inner bottom surface of the placing frame (5), and the upper surface of the driven ring plate (10) is provided with a plurality of limiting driving components for promoting the cleaning barrel (8) and the driven ring plate (10) to rotate synchronously.

4. A device for electrophoretic pre-treatment of a profiled element according to claim 3, characterized in that: The limiting driving components comprise a plurality of second movable mounting grooves (34) uniformly arranged on the upper surface of the driven ring plate (10), a first limiting column (13) extending out of the second movable mounting groove (34) is slidably connected in the second movable mounting groove (34), the bottom end of the first limiting column (13) is fixedly connected with a third spring (33), one end of the third spring (33) away from the first limiting column (13) is fixedly connected with the inner bottom surface of the second movable mounting groove (34), and the lower surface of the cleaning barrel (8) is provided with a plurality of driven limiting grooves (29) matched with the first limiting column (13) in size.

5. A device for electrophoretic pre-treatment of a profiled element according to claim 4, characterized in that: The bottom of the inner circumferential surface of the placing ring plate (9) is fixedly connected with a fixed ring plate (22), the lower surface of the fixed ring plate (22) is fixedly connected with a first limiting rod (23) extending around the driving ring plate (16) and arranged on the placing frame (5), the rear end of the upper surface of the placing frame (5) is fixedly connected with a first supporting plate (7) extending above the cleaning barrel (8), one end of the first supporting plate (7) away from the placing frame (5) is provided with a limiting pulling column (35) capable of rotating and sliding, and the bottom end of the limiting pulling column (35) is fixedly connected with the cleaning barrel (8).

6. A device for electrophoretic pre-treatment of a profiled element according to claim 5, characterized in that: The center of the lower surface of the cleaning plate (20) is fixedly connected with a driven rod (21), the bottom end of the driven rod (21) is provided with a driving barrel (30) capable of moving up and down, the lower surface of the cleaning and blow-drying barrel (1) is fixedly connected with a driving motor, the top end of a driving shaft of the driving motor extends into the cleaning and blow-drying barrel (1), and the driving barrel (30) can be sleeved on the driving shaft.

7. A device for electrophoretic pre-treatment of a profiled element according to claim 6, characterized in that: The lower surface of the driven rod (21) is provided with a third movable mounting slot, a driving rod (32) with one end fixedly connected to the driving barrel (30) is slidably connected in the third movable mounting slot, the top end of the driving rod (32) is fixedly connected with a second spring (31), and the end, away from the driving rod (32), of the second spring (31) is fixedly connected to the top surface in the third movable mounting slot.

8. A device for electrophoretic pre-treatment of a profiled element according to claim 7, characterized in that: The middle part of the driven rod (21) is fixedly connected with a first driving gear (24), the inner circumferential surface of the driving ring plate (16) is fixedly connected with an inner tooth ring plate (26), the second driving gear (25) is in gear connection between the first driving gear (24) and the fixed ring plate (22), the inner circumferential surface of the second driving gear (25) is rotatably connected with a second limiting column (27), the end, away from the second driving gear (25), of the second limiting column (27) is fixedly connected with a second limiting rod (28), and the end, away from the second limiting column (27), of the second limiting rod (28) is fixedly connected to the placing frame (5).

9. A device for electrophoretic pre-treatment of a profiled element according to claim 8, characterized in that: The upper surface of the driving ring plate (16) is provided with a first movable mounting slot (19), a top block (17) with one end capable of being exposed outside is slidably connected in the first movable mounting slot (19), the lower surface of the top block (17) is fixedly connected with a first spring (18) with one end arranged on the bottom surface in the first movable mounting slot (19), and the surface of the top block (17) is provided with a friction plate (6).

10. A device for electrophoretic pre-treatment of a profiled element according to claim 9, characterized in that: The upper surface of the placing ring plate (9) is uniformly penetrated with a plurality of limiting openings (15), a plurality of top balls (12) are movably connected in the corresponding limiting openings (15) respectively, and the outer surface of the top ball (12) is uniformly fixedly connected with a plurality of hemispherical blocks (14).

Citation Information

Patent Citations

  • Pretreatment device for metal parts before electrophoresis

    CN220767177U