Electroplating roller

Abstract

The invention discloses an electroplating roller, and relates to the technical field of electroplating rollers, the electroplating roller comprises a hollow roller body formed in a cylindrical surrounding manner, holes are formed in the roller body, the roller body is divided into a plurality of plate bodies at intervals in the circumferential direction, at least one plate body is detachably arranged, and limiting strips are arranged at the two ends of the inner surface of each plate body in the length direction; a cleaning plate is arranged between the two sets of limiting strips in a sliding mode, protrusions are arranged on the side, attached to the plate body, of the cleaning plate, the cleaning plate moves at the two ends of the plate body in the width direction when rolling along with the roller body, and during moving, the protrusions enter the holes under the pressure effect to clean blockage. And the sliding of the cleaning plate acts on the bulges into the holes, so that the blockage in the holes is removed, and the influence on the replacement of the electroplating liquid inside and outside the barrel body and the influence on the electroplating stability of the product are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electroplating drum, in particular to an electroplating drum. BACKGROUND

[0002] Electroplating is a process of plating a thin layer of other metal or alloy on the surface of some metal by using electrolysis principle, and is mainly divided into hanging plating, rolling plating and brushing plating according to the operation mode of product electroplating, wherein the rolling plating is to carry the product by the drum and make the product electroplated in the process of continuous rolling.

[0003] The rolling plating is generally applicable to small and medium-sized products, the aperture of the drum is smaller than the product, and is generally a small hole, and in the electroplating process, the following sources will cause the hole of the drum to be blocked, such as solid suspensions in plating solution (anode mud, additives, dust in the environment and equipment wear, etc.), fine particles or burrs generated by workpiece collision and friction, and burrs generated during manufacturing of the hole of the drum, etc., and the blockage of the hole during operation will affect the replacement of the electroplating solution inside and outside the drum, and if the replacement efficiency is low, the electroplating quality and efficiency of the product will be affected, in addition, the deposition of the plating metal and the generation of some insoluble salts or compounds in the electroplating solution will further cause the hole to be blocked.

[0004] Although the electroplating equipment is regularly cleaned in the existing process, the hole of the drum is continuously blocked during the electroplating process, and the replacement efficiency of the electroplating solution inside and outside the drum is continuously decreased within a period, which also leads to certain difference in surface quality of different batches of electroplated products. Therefore, the present application provides an electroplating drum. SUMMARY

[0005] The present application aims to provide an electroplating drum to solve the problems in the background.

[0006] To achieve the above object, the present application provides the following technical scheme: an electroplating drum, comprising a hollow cylinder body formed in a cylindrical shape, a hole is formed on the cylinder body, the cylinder body is divided into a plurality of plate bodies in the circumferential direction, and at least one of the plate bodies is detachably arranged, the two ends of the length direction of the inner surface of the plate body are provided with limiting strips, a cleaning plate is slidably arranged between the two groups of limiting strips, the cleaning plate is provided with a protrusion on one side of the plate body, and the protrusion is pressed into the hole to clean the blockage when the cleaning plate moves at both ends of the width direction of the plate body when rolling with the cylinder body.

[0007] Preferably, the two side surfaces of the cleaning plate in the thickness direction extend from the small end to the large end and are inclined outward, when the cylinder rotates, the small end of the cleaning plate moves downward under the action of gravity, the protrusion on the large end side contacts the hole on the cylinder, the inclination angle of the side of the cleaning plate close to the inner surface of the plate body is greater than that of the opposite side, so that when the cleaning plate falls, the small end is pressed away from the side of the inner surface of the plate body, and the protrusion on the large end side is pressed.

[0008] Preferably, the maximum transverse distance of the cross section between the large end of the cleaning plate and the protrusion is greater than the vertical distance between the inner top wall of the limiting strip and the inner surface of the plate body, and during the deflection of the small end of the cleaning plate in the opposite direction of the pressure, the two edges of the cross section of the large end and the protrusion respectively fit the inner surface of the plate body and the inner top wall of the limiting strip.

[0009] Preferably, the density of the large end of the cleaning plate and the overall density of the cleaning plate are both greater than the density of the electroplating solution, and the density of the small end of the cleaning plate is less than the density of the electroplating solution.

[0010] Preferably, the end surface of the cleaning plate in the length direction is provided with a guide sliding block, the guide sliding block is arranged at the small end of the cleaning plate, a guide sliding plate is arranged on the limiting strip, the side wall of the guide sliding plate in contact with the guide sliding block is wavy, and the wavy undulations on the guide sliding plate are adapted to the corresponding holes on the falling path of the cleaning plate.

[0011] Preferably, the protrusion is peak-shaped.

[0012] Preferably, a clamping piece is arranged between the small end of the cleaning plate and the limiting strip, and the cleaning plate is limited by the clamping piece after falling, so that the cleaning plate does not disengage when the angle between the plate body and the horizontal direction does not reach a predetermined angle.

[0013] Preferably, the clamping piece is a flange arranged at the small end of the cleaning plate, and an inclined guide surface is arranged in the limiting strip, the flange contacts and clamps the inclined guide surface after the cleaning plate falls, and is separated under the action of gravity after the plate body rotates to the inclined angle.

[0014] Preferably, the clamping piece is a flange arranged at the small end of the cleaning plate, and a stop block is arranged on the inner surface of the plate body, the flange passes over the stop block to the other side stop when the cleaning plate falls, and is separated under the action of gravity after the plate body rotates to the inclined angle.

[0015] Compared with the prior art, the beneficial effects of the present application are: The present application sets the cleaning plate which can slide under the action of gravity in the roller, the sliding of the cleaning plate acts on the protrusion in the hole, thereby removing the blockage in the hole, avoiding affecting the replacement of the electroplating solution inside and outside the cylinder, thereby affecting the stability of the electroplating of the product; The cleaning plate of the present application is provided with a large end and a small end, which can generate a certain pressure on the protrusion during sliding, so that it can be better used for cleaning the blockage, and the situation of not cleaning or being stuck due to small force is avoided; The cleaning plate can counteract the pressure on the plate body under the guide slide plate during the falling cleaning process, and release the pressure at the hole to reduce the wear on the plate body. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the structure of the plate body; Figure 3 is an enlarged schematic diagram of the structure of area A in Figure 2 Figure 4 is a schematic diagram of the rotating state of the roller; Figure 5 is a schematic diagram of the structure of the cleaning plate; Figure 6 is a schematic diagram of the end face state structure of the cleaning plate; Figure 7 is a schematic diagram of the state in which the protrusion on the cleaning plate acts on the hole; Figure 8 is a schematic diagram of the state in which the protrusion on the cleaning plate acts on the plate body; Figure 9 is a schematic diagram of the state in which the peak-shaped protrusion acts on the hole; Figure 10 is a schematic diagram of the state of one embodiment of the clamping member; Figure 11 is a schematic diagram of the state of another embodiment of the clamping member.

[0017] In the drawings: 1 - cylinder body; 101 - plate body; 2 - hole; 3 - limiting strip; 4 - cleaning plate; 5 - protrusion; 6 - guide block; 7 - guide slide plate; 8 - flange; 9 - inclined guide surface; 10 - stop block; 401 - small end; 402 - large end; 4a - first inclined surface; 4b - second inclined surface; 4c - circular arc segment; 5a - edge line; 1s - boundary line. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ​The present invention provides a technical solution: an electroplating drum, comprising a cylindrical hollow cylinder 1 with openings at both ends, the two ends of the cylinder 1 are connected to tooth plates and form a closure, the tooth plates are connected to a drive to rotate the cylinder 1, and the cylinder 1 is evenly divided into multiple plates 101 on the circumference, and at least one plate 101 is an independent individual and can be disassembled to form an opening to facilitate the loading and removal of parts. Except for the above-mentioned independent individual plates 101, the remaining plates 101 can be either integral or assembled as a whole. The cylinder shown in the figure is a cylindrical body composed of six plates 101, which can also be 5 or 7, etc. The figure shows a regular polyhedron, but it can also be a cylindrical body with a circular cross-section. The plate body 101 is in the shape of a cylinder, and a plurality of holes 2 are provided on the plate body 101 for replacing the electroplating liquid inside and outside the cylinder body 1. The limiting strips 3 are fixedly connected at both ends of the length direction of the single plate body 101 (i.e., the axial direction of the cylinder body 1). The cross-section of the limiting strip 3 is L-shaped, and a track for the sliding of the cleaning plate 4 is formed between the limiting strip 3 and the plate body 101, that is, the cleaning plate 4 can slide from both ends in the width direction of the plate body 101 under the restriction of the track, and a protrusion 5 corresponding to the hole 2 is fixed on the side of the plate body 101 that is in contact with the inner surface of the plate body 101. When the protrusion 5 slides with the cleaning plate 4, it enters the hole 2 for cleaning. The cleaning plate 4 changes its position as it rolls in the cylinder body 1, and slides at both ends for cleaning under the action of gravity.

[0020] Specifically, such as Figure 4 As shown, when the cylinder 1 rotates clockwise, taking the lowest horizontal plate 101 as an example, when the workpiece is on the lowest plate 101 in the cylinder 1, it contacts the cathode and is electroplated. At this time, the cleaning plate 4 is located on the left side of the plate 101 (because in the state of the right side plate 101, the cleaning plate 4 falls to the left end due to gravity). The cleaning plate 4 itself has a certain mass. When the plate 101 is tilted at a small angle, it will not slide to the right due to friction. When it is rotated to a predetermined angle, such as 45° (the setting of this angle depends on the mass of the cleaning plate 4 and the roughness of the friction surface, etc., and can be set selectively), when the workpiece has reached another adjacent plate 101, the cleaning plate 4 slides to the right. During sliding, the protrusion 5 enters the hole 2 under pressure for cleaning, and a continuous cycle is performed during rotation.

[0021] See Figure 4 、 Figure 5 and Figure 6 The end face of the cleaning plate 4 in the longitudinal direction is waist-shaped, that is, the thickness of the two ends in the width direction is different, and it is divided into a large end 402 and a small end 401. Figure 4 In the clockwise rotation angle, the small end 401 is located at the front end of the rotation direction, that is, Figure 4At the position of the thickened line segment, the cleaning plate 4 falls due to gravity, the small end 401 faces downward, and the two side surfaces of the cleaning plate 4 in the thickness direction are both inclined surfaces, i.e., the first inclined surface 4a and the second inclined surface 4b, due to the arrangement of the large end 402 and the small end 401, the angle α between the first inclined surface 4a and the vertical direction is greater than the angle β between the second inclined surface 4b and the vertical direction, so as to facilitate the pressure on the small end 401 to the right side when the cleaning plate 4 falls, Figure 6 from the perspective, the small end 401 will be pressed to the right side, the support point (not shown in the figure) is arranged on the second inclined surface 4b, the pressed state makes the large end 402 tend to move to the left, and in the case that the gravity does not affect, the protrusions 5 can also exert pressure on the protrusions 5, it should be pointed out that Figure 5 the interval of the protrusions 5 in the above is set for the magnified state, and it is convenient for indication, and the actual interval corresponds to the hole 2 on the plate body 101.

[0022] Specifically, when the cylinder body 1 rotates clockwise, under the action of centrifugal force, the cleaning plate 4 as a whole tends to move outward along the radial direction, and the small end 401 additionally receives the pressure of the electroplating solution (when rotating), so that the protrusions 5 of the large end 402 press against the inner surface of the plate body 101, when encountering the hole 2, the end of the protrusion 5 enters the hole 2 to make the blockage be pushed out, when the cleaning plate 4 continues to move downward, the protrusion 5 again abuts against the inner surface of the plate body 101, so that the protrusion 5 presents a wavy moving curve, i.e., the large end 402 and the small end 401 of the cleaning plate 4 present a swinging state, and the pressure can better push out the blockage in the hole 2, thereby improving the cleaning effect.

[0023] Referring to Figure 4 , Figure 6 , Figure 7 and Figure 8 , the embodiment is a specific scheme of the above-mentioned support point, the second inclined surface 4b at one end of the large end 402 is provided with a circular arc segment 4c, the circular arc segment 4c is tangent to the second inclined surface 4b, and the maximum distance H between the large end 402 of the cleaning plate 4 and the cross section of the protrusion 5 is greater than the distance from the top wall of the limiting strip 3 to the inner surface of the plate body 101 (the height of the track in which the cleaning plate 4 slides), i.e. Figure 6 , as shown in the state of the figure, the transverse distance H from the leftmost side of the protrusion 5 to the junction of the circular arc segment 4c and the second inclined surface 4b is greater than the height of the track, so that the second inclined surface 4b of the cleaning plate 4 does not completely adhere to the top wall of the limiting strip 3, and it can still rotate counterclockwise, i.e., the small end 401 deflects to the right side, only when the protrusion 5 encounters the hole 2 during the downward movement of the cleaning plate 4, the small end 401 will begin to deflect and press in the hole 2, and the state of the cleaning plate 4 in the track is as shown in Figure 8 , the edge line 5a of the protrusion 5 abuts against the inner surface of the plate body 101, at this time, the non-end part of the circular arc segment 4c is in contact with the top wall of the limiting strip 3, and the straight line distance L as shown in Figure 8 is the same as the height of the track.

[0024] Furthermore, in order to generate greater pressure on the left side of the small end 401 so as to better act on the hole 2, the cleaning plate 4 is set to a top-heavy state, that is, the overall mass is concentrated on the large end 402, and the densities of the two ends are different. The density of the large end 402 is much greater than the density of the plating solution, and the overall density of the cleaning plate 4 is also greater than the density of the plating solution, so that the cleaning plate 4 can sink. As for the small end 401, its density is set to be less than the plating solution. When sinking, the small end 401 generates a greater pressure due to the action of the first inclined surface 4a, which is transmitted to the protrusion 5.

[0025] Specifically, as in Figure 6 At the dividing line 1s shown, the large end 402 and the small end 401 are separated into two parts. The densities of the two parts are different. It is also possible to adopt a density gradient extending from the small end 401 to the large end 402. The above density refers to the overall density, that is, it can be achieved by using a counterweight, and is not limited to selecting a single material with a density greater than or less than the plating solution. The density of the small end 401 is low, and when the cylinder 1 rotates, its centrifugal force can overcome gravity, that is, it is in Figure 4 When the small end 401 is in the highest position shown, the small end 401 can also be kept in contact with the inner top wall of the limiting strip 3, thereby avoiding the small end 401 sinking and causing Figure 7 In the state shown, the small end 401 is attached to the plate body 101 and cannot be reset, resulting in that the protrusion 5 cannot be cleaned.

[0026] See Figure 7 、 Figure 8 and Figure 9 In the above embodiment, the force exerted on the protrusion 5 is directly applied to the inner surface of the plate body 101 and the edge of the hole 2, and long-term practical use will cause greater wear. Therefore, a guide slider 6 is provided on the end face of the cleaning plate 4 in the longitudinal direction (i.e., the axial direction of the cylinder 1), and the end of the guide slider 6 beyond the second inclined surface 4b is an arc or spherical surface, and a guide slider 7 is provided on the top wall of the limit bar 3. The side surface of the guide slider 7 and the end of the guide slider 6 in contact and sliding is set to a wave-like undulation, which corresponds to the hole 2 on the plate body 101, that is, the trough corresponds to the hole 2, and the crest corresponds to the inner surface of the plate body 101, and the crest causes the small end 401 to slide in the Figure 7 Deflect to the left in the state Figure 8 State, the protrusion 5 just contacts the plate body 101 or there is a gap between the two, which will not cause friction or friction with small frontal pressure, and the trough just makes the protrusion 5 enter the hole 2, reducing or even eliminating the impact of the protrusion 5 on the friction of the plate body 101 and the hole 2. The guide slide 7 and the cleaning plate 4 are misaligned, so the movement of the two does not interfere, and the undulations on the surface of the guide slide 7 are used to offset the pressure while controlling the swing range of the protrusion 5.

[0027] Furthermore, the protrusion 5 is in a peak shape, i.e., it is raised like a mountain, and its end is spherical, so as to better act on the hole 2 to clear the blockage.

[0028] See Figure 4 、 Figure 10 and Figure 11 ,exist Figure 4 In the state shown, the cleaning plate 4 on the plate body 101 at the lowermost position is at the left end when in a horizontal position, and when it starts to tilt, if there is no restriction, it may slide to the right end at a certain tilt angle such as 10° or 30°. At this time, the workpiece is not transferred from the plate body 101 to another adjacent plate body 101, which may cause the cleaning plate 4 and the workpiece to contact each other and may cause the cleaning plate 4 to be stuck. Therefore, in order to avoid this situation, a locking member is provided between the front end of the plate body 101 in the rotation direction and the small end 401 of the cleaning plate 4, so that the cleaning plate 4 is limited after falling and cleaning, and the cleaning plate 4 does not separate before the workpiece separates from the plate body 101 where it is located. Specifically, as shown in Figure 4 In the state shown, after the lowermost plate 101 is rotated and tilted 50°, the workpiece is completely separated from the plate 101, that is, 50° is the set angle. After reaching this angle or this angle, the cleaning plate 4 is separated and slides to the right. The set angle depends on the state of the workpiece being separated from the plate 101. As long as it is separated, the cleaning plate 4 can slide to the right to prepare for subsequent cleaning sliding.

[0029] As one of the specific embodiments, the locking part is composed of a flange 8 arranged at the small end 401 of the cleaning plate 4 and an inclined guide surface 9 arranged in the limit strip 3. When the inclined guide surface 9 is inclined, the cleaning plate 4 will be stuck in the area between the inclined guide surface 9 and the plate body 101 due to the action of gravity after falling. Because the fall has a certain impact, it will be relatively tight when stuck. When the plate body 101 is tilted, the small angle will not cause the cleaning plate 4 to disengage, thereby forming a limit, and after continuing to rotate, it will disengage due to the increase in angle. The friction force depends on the surface roughness between the flange 8 and the inclined guide surface 9.

[0030] As another embodiment of the locking member, the inclined guide surface 9 is replaced by a stopper 10 fixed to the inner surface of the plate body 101. The stopper 10 and the flange 8 are both conical. When the cleaning plate 4 falls, due to the inclined surface, the flange 8 passes over the stopper 10 and forms a limit, that is, a mounted state. After the plate body 101 tilts, the angle gradually increases, and the angle between the gravity direction and the mounting inclined surface becomes smaller, causing it to detach under the action of gravity.

[0031] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0032] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. An electroplating drum, comprising a hollow cylinder (1) formed in a cylindrical shape, a hole (2) being formed on the cylinder (1), the cylinder (1) being divided into a plurality of plates (101) at intervals in the circumferential direction, and at least one of the plates (101) being detachable, characterized in that: Limiting strips (3) are provided at both ends of the inner surface of the plate body (101) in the longitudinal direction. A cleaning plate (4) is provided slidingly between the two sets of limiting strips (3). A protrusion (5) is provided on one side of the cleaning plate (4) that is attached to the plate body (101). When the cleaning plate (4) rolls with the cylinder (1), it moves at both ends of the width direction of the plate body (101). When moving, the protrusion (5) is subjected to pressure to enter the hole (2) to clean the blockage. The two side surfaces of the cleaning plate (4) in the thickness direction extend from the small end (401) to the large end (402) and are inclined outward. When the cylinder (1) rotates, the cleaning plate (4) moves downward under the action of gravity, and the protrusion (5) on the large end (402) side contacts the hole (2) on the cylinder (1). The inclination angle of the side of the cleaning plate (4) close to the inner surface of the plate body (101) is greater than the inclination angle of the other side. When the cleaning plate (4) falls, the small end (401) is pressed away from the inner surface of the plate body (101), and the protrusion (5) on the large end (402) side is pressed.

2. The electroplating drum according to claim 1, characterized in that: The maximum lateral spacing of the cross section between the large end (402) of the cleaning plate (4) and the protrusion (5) is greater than the vertical distance between the inner top wall of the limiting strip (3) and the inner surface of the plate body (101), and during the deflection of the small end (401) of the cleaning plate (4) in the opposite direction of the pressure, the two edges of the cross section of the large end (402) and the protrusion (5) respectively adhere to the inner surface of the plate body (101) and the inner top wall of the limiting strip (3).

3. The electroplating drum according to claim 1 or 2, characterized in that: The large end (402) of the cleaning plate (4) and the overall density of the cleaning plate (4) are both greater than the density of the electroplating solution, and the density of the small end (401) of the cleaning plate (4) is less than the density of the electroplating solution.

4. The electroplating drum according to claim 1 or 2, characterized in that: A guide slide block (6) is provided on the end face in the longitudinal direction of the cleaning plate (4), and the guide slide block (6) is arranged at the small end (401) of the cleaning plate (4). A guide slide block (7) is provided on the limit bar (3), and the side wall of the guide slide block (7) in contact with the guide slide block (6) is wavy, and the wavy undulations on the guide slide block (7) are adapted to the corresponding holes (2) on the falling path of the cleaning plate (4).

5. The electroplating drum according to claim 1, characterized in that: The protrusion (5) is peak-shaped.

6. The electroplating drum according to claim 1, characterized in that: A snap fit member is provided between the small end (401) of the cleaning plate (4) and the limiting strip (3). After the cleaning plate (4) falls, the snap fit member limits the cleaning plate (4) so ​​that the cleaning plate (4) does not disengage until a predetermined angle between the plate body (101) and the horizontal direction is reached.

7. The electroplating drum according to claim 6, characterized in that: The engaging member is a flange (8) provided at the small end (401) of the cleaning plate (4), and an inclined guide surface (9) is provided in the limiting strip (3). The flange (8) contacts and is locked with the inclined guide surface (9) after the cleaning plate (4) falls, and is disengaged under the action of gravity after the plate body (101) rotates to reach the tilt angle.

8. The electroplating drum according to claim 6, characterized in that: The engaging member is a flange (8) provided at the small end (401) of the cleaning plate (4), and a stopper (10) is provided on the inner surface of the plate body (101). When the cleaning plate (4) falls, the flange (8) passes over the stopper (10) and stops at the other side, and after the plate body (101) rotates to reach the tilt angle, it is disengaged under the action of gravity.

Images