Slotted conductive roller for electroplating transmission assembly

Abstract

A slotted conductive roller for an electroplating transmission assembly comprises a roller and shaft heads, the shaft heads comprise the first shaft head and the second shaft head, the first shaft head and the second shaft head are arranged at the two ends of the roller, a first shaft head face is arranged between the first shaft head and the roller, and a second shaft head face is arranged between the second shaft head and the roller. A plurality of conductive roller wheel lines are arranged on the outer surface of the roller, and the first shaft head and the second shaft head adopt stepped connecting rods with gradually reduced diameters or connecting rods with conical inclination or connecting rods with the same diameter as the roller; the grooved conductive roller is used for transmission and electric conduction, so that the hole breaking phenomenon of an electroplating film is remarkably reduced, the flatness of a film surface is extremely favorably kept, the problem of copper coating on the roller is prevented, the copper electroplating uniformity of a to-be-coated surface is improved, and the film surface is smooth and better in uniformity by changing the relative position of the conductive roller.

Description

TECHNICAL FIELD

[0001] The utility relates to the technical field of electroplating treatment devices, in particular to a slotted conductive roller for an electroplating transmission assembly. BACKGROUND

[0002] As an important component in modern industrial production, electroplating equipment has been widely used in the fields of automobile, electronics, aerospace, etc., and the electroplating transmission assembly is necessary for the operation of the electroplating equipment, so its quality and performance directly affect the operation efficiency and stability of the entire equipment.

[0003] The common roll-to-roll electroplating transmission assembly often uses the most common smooth roller, which will cause wrinkles due to film left and right deviation during operation, and thus is prone to cause broken holes or burned plates when electrified, and further affect the uniformity of the plate surface; in the film transmission process of the traditional electroplating transmission assembly, the electrolyte will be brought to the conductive roller to form a liquid accumulation, causing copper on the conductive roller, which will cause inconsistent electroplating current density, reduced electroplating effect, and product film broken hole, etc., thus there is a great space for improvement in production process; when the electroplating speed is too fast, a water film will be formed between the roller and the film due to the double electrode effect, and thus a part of the current will act between the roller and the product film, which is prone to cause copper on the roller and scratches on the product film. CONTENT OF THE INVENTION

[0004] The utility aims to provide a slotted conductive roller for an electroplating transmission assembly and a slotted method thereof, which uses a slotted conductive roller for transmission and conduction, significantly reduces the broken hole phenomenon of the electroplating film, is beneficial to maintaining the flatness of the film surface, prevents the copper problem on the roller, improves the electroplating copper uniformity of the film to be plated, and can also make the film surface flat and have better uniformity by changing the relative position of the conductive roller, thus effectively solving the problems of product transmission and conduction and copper on the transmission and conduction roller, product wrinkles, broken holes, and other production defects in the electroplating process; in order to achieve the above purpose, the utility is implemented through the following technical solutions:

[0005] A slotted conductive roller for an electroplating transmission assembly, comprising a roller and a shaft head, the shaft head comprises a first shaft head and a second shaft head, the first shaft head and the second shaft head are arranged at both ends of the roller, a first shaft head surface is arranged between the first shaft head and the roller, and a second shaft head surface is arranged between the second shaft head and the roller, a plurality of conductive roller groove patterns are arranged on the outer surface of the roller, the first shaft head and the second shaft head are connected by a stepped connecting rod with gradually decreasing diameter or a connecting rod with conical slope, or a connecting rod with the same diameter as the roller.

[0006] Preferably, the conductive roller groove pattern is a herringbone groove.

[0007] Preferably, the first shaft head surface and the second shaft head surface are arranged in parallel.

[0008] Preferably, the length of the roller is 0.5M-5M.

[0009] Preferably, the width of the herringbone groove is 0.1mm-50mm, and the depth of the herringbone groove is 0.1mm-10mm.

[0010] Preferably, the herringbone groove is treated by chamfered glue spraying or chamfered glue-free treatment.

[0011] Preferably, the thickness of the glue after the chamfered glue spraying is 0.05mm-6mm, and the width of the glue is 0.1mm-30mm.

[0012] Preferably, the angle between the two sides of the herringbone groove of any two adjacent groups is 10°-160°, and the distance between the two sides of the herringbone groove is 5mm-200mm.

[0013] Preferably, the chamfer of the herringbone groove is R0.01mm-R5mm.

[0014] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0015] 1. The present utility model adopts a slotted conductive roller, and the grooves on the conductive roller can ensure that the trace impurities on the product film flow out during the operation of the equipment, reduce the probability of broken holes, ensure the quality of the product film, make the copper plating uniform, the film surface smooth and smooth, and reduce the impurities on the product film, thereby ensuring the normal operation of the equipment.

[0016] 2. The electroplating transmission assembly carrying a plurality of conductive rollers of the present utility model can ensure that the product film is electroplated once every time it passes through the conductive roller during the electroplating process. Compared with the traditional conductive roller, the grooves increase the functions of drainage, multi-segment discharge, and conductive flattening. Through the cooperation of various grooves, such as electroplating grooves, the production quality of the film is effectively ensured, and the probability of copper plating on the roller is reduced.

[0017] 3. The grooves of the conductive roller of the present utility model are provided with glue and are sprayed for insulation treatment, which effectively prevents scratching and copper plating on the product. According to different requirements of the electroplating process, the thickness and width of the glue in the groove can be adjusted, and the glue treatment can also be selected.

[0018] 4. The present utility model can be used for different electroplating processes, and the grooves on the roller can be flexibly opened to achieve better electroplating effect. The herringbone grooves are suitable for various types of electroplating grooves, such as horizontal electroplating grooves, V-shaped electroplating grooves, and square electroplating grooves. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The figure is a structural schematic view of the conductive roller of the present utility model.

[0020] Figure 2 The schematic diagram of the shape of the arc-shaped groove in the conductive roller of the present application after the rubber in the herringbone groove is opened again;

[0021] Figures 3a to 3c The schematic diagram of the shape of the T-shaped or V-shaped or arc-shaped chamfer without rubber in the herringbone groove after the groove is opened in the present application;

[0022] Figure 4a The schematic diagram of the placement layout of the conductive roller of the present application for the V-shaped electroplating groove;

[0023] Figure 4b The schematic diagram of the placement layout of the conductive roller of the present application for the horizontal electroplating groove;

[0024] Figure 4c The schematic diagram of the placement layout of the conductive roller of the present application for the square electroplating groove.

[0025] In the figure, 100, conductive roller; 001, roller; 101, first shaft head; 102, second shaft head; 201, first shaft head face; 202, second shaft head face. DETAILED DESCRIPTION

[0026] In the following, the present application is further described in combination with the drawings and the specific embodiments:

[0027] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application is further described below with reference to the drawings and embodiments.

[0028] Embodiment 1:

[0029] As Figure 1As shown, a slotted conductive roller for electroplating transmission assembly includes a roller and a shaft head, and the length of the roller is set to 0.5M-5M. Wherein, the shaft head includes a first shaft head and a second shaft head, and the first shaft head and the second shaft head are arranged at both ends of the roller. A first shaft head surface is arranged between the first shaft head and the roller, and a second shaft head surface is arranged between the second shaft head and the roller. The first shaft head surface and the second shaft head surface need to be arranged in parallel. The shaft head at both ends of the conductive roller can be designed according to the actual situation of the groove body, that is, the first shaft head and the second shaft head adopt a stepped connecting rod with gradually decreasing diameter or a connecting rod with tapered slope or a connecting rod with the same diameter as the roller, so as to better fix the roller and enhance the stability of the equipment during operation. A plurality of conductive roller wheel patterns are arranged on the outer surface of the roller. The form of the conductive roller wheel pattern is set as a herringbone groove. Specifically, the groove width of the herringbone groove is 0.1mm-50mm, and the groove depth is 0.1mm-10mm. The chamfer on both sides of the herringbone groove is R0.01mm-R5mm. The angle of connection between the two groove bodies of any two adjacent herringbone grooves is 10°-160°, and the distance between the two groove bodies is 5mm-200mm. Furthermore, the herringbone groove needs to be treated by chamfered rubber coating spraying or chamfered rubber coating free treatment. The rubber coating thickness after chamfered rubber coating spraying is 0.1mm-10mm, and the width is 0.1mm-30mm.

[0030] When the electroplating transmission assembly uses the conductive roller of the utility model, the herringbone pattern is opened on the conductive roller. During the operation of the equipment, not only does it play a role in transmission and conduction, but also the residual copper powder is removed through the groove on the roller, reducing the particulate impurities on the conductive roller, ensuring the conduction stability of the conductive roller, eliminating the possibility of voltage instability and product pressure point caused by poor contact and pressure injury of the conductive roller due to impurities, and reducing the maintenance frequency to a certain extent. In addition, it reduces the liquid accumulation between the film surface and the roller during the electroplating process, reduces the probability of broken holes, makes the product film surface smoother and more even, and reduces the risk of copper on the conductive roller and the product damage rate. Therefore, the current density of the film is more uniform. During the work process, the metal ions in the electrolyte are adsorbed on the product film by electrolysis, thereby completing the electroplating process and single-sided or double-sided electroplating of the product film.

[0031] Subsequently, after the product film enters the groove, the electrolyte adheres to the film through the conductive roller. The film brings the electrolyte between the roller and the film during transmission to form a liquid accumulation layer. The tension of the film will always stick to the roller to run, prompting the liquid accumulation to flow into the herringbone groove of the conductive roller. During rotation, the liquid accumulation slowly flows out of the groove on the conductive roller. The liquid accumulation becomes less and less until there is none, so that the reverse electroplating phenomenon will not occur, and the copper risk on the conductive roller is eliminated.

[0032] The herringbone grooves of the conductive roller are coated with rubber and sprayed with paint, and insulation is applied accordingly to prevent scratches and copper plating on the product, thus avoiding product damage. The thickness and width of the rubber coating in the herringbone grooves can be adjusted in a timely manner according to different electroplating process requirements, or the rubber coating can be omitted. The conductive rollers prepared are suitable for various types of electroplating tanks, such as horizontal electroplating tanks, V-shaped electroplating tanks, and square electroplating tanks.

[0033] Example 2:

[0034] like Figures 2 to 3c As shown, the herringbone groove on this utility model's slotted conductive roller also has the following slotting method, the process of which is as follows:

[0035] A plurality of herringbone grooves are evenly and equally divided from the center of the roller surface toward the first shaft end face and the second shaft end face; or a plurality of herringbone grooves are evenly and equally divided from the first shaft end face and the second shaft end face toward the center of the roller surface; or a plurality of herringbone grooves are evenly and equally divided from a distance of 0-1000mm from the first shaft end face or the second shaft end face toward the center of the roller surface. Specific implementation methods of the above methods are as follows:

[0036] The method of evenly dividing the roller surface from the center to the first and second shaft ends is as follows: First, take a cross-section at the center of the roller surface, and take several equal division points along the edge of the cross-section. Then, take any one of the division points as the starting point of the groove, and extend the groove in a spiral pattern along the roller surface to the first and second shaft ends respectively. The pitch is set to 10-300mm. The distance between the end point of the groove and the first and second shaft ends is 0-1000mm. Ensure that the size of the herringbone groove is consistent. The end point of the groove is determined according to the width of the product being prepared.

[0037] The method of evenly dividing the roller surface into several herringbone grooves from the first shaft head surface and the second shaft head surface is as follows: First, take several equal division points at the edge of the first shaft head surface, then take several equal division points at the edge of the second shaft head surface. Then, arbitrarily select one of the several equal division points on the first shaft head surface and the second shaft head surface, and use it as the starting point of the first groove and the starting point of the second groove. From the first groove starting point and the second groove starting point, grooves are made along the surface of the roller in a spiral shape towards the center of the roller surface, until they are connected or intersected at the center of the roller surface, and the herringbone grooves are kept to a consistent size.

[0038] The method of evenly dividing the roller surface into several herringbone grooves from 0-1000mm away from the first or second shaft end face is as follows: First, take the roller cross-section at 0-1000mm away from the first or second shaft end face, take several equal division points on the edge of the cross-section, and then take the division points as the starting point for grooving. Grooves are then opened in a spiral shape along the surface of the roller towards the center of the roller surface until they are connected or intersecting at the center of the surface, ensuring that the herringbone grooves are of the same size.

[0039] The aforementioned grooving method also includes the process of chamfering and coating the herringbone grooves or chamfering without coating. The chamfering and coating process for the herringbone grooves involves: first, spraying and filling the herringbone grooves on the roller surface with rubber; then, using the same grooving method, grooving again along the original grooving trajectory of the roller; and finally, polishing the entire conductive roller to complete the coating within the grooves. This step involves grooving on the rubber layer, with the width and depth of the groove being less than the groove described in step S1, i.e., the coating thickness within the groove is 0.05-6mm. The chamfering and coating process for the herringbone grooves involves: after grooving using the grooving method, using a chamfering tool with an R0.01mm-R5mm radius along the original grooving trajectory on the roller surface to chamfer the edges, making the edges of the herringbone grooves smooth; finally, polishing with a grinding wheel polisher or a vibrating polishing tank.

[0040] The herringbone grooves created using the above method have a groove width of 0.1mm-50mm and a groove depth of 0.1mm-10mm. The chamfers on both sides of the herringbone grooves are R0.01mm-R5mm. The angle between the two sides of any two adjacent herringbone grooves is 10°-160°, and the distance between the two grooves is 5mm-200mm. The internal shape of the groove after grooving can be T-shaped, V-shaped, or arc-shaped, etc. The internal shape of the groove after being coated with adhesive and then grooved again is still T-shaped, V-shaped, or arc-shaped, etc.

[0041] Example 3:

[0042] like Figures 4a to 4c As shown, this conductive roller is applicable to various types of electroplating tanks, such as horizontal electroplating tanks, V-shaped electroplating tanks, and square electroplating tanks, etc., and examples are provided:

[0043] Type 1: Horizontal electroplating tank. This type uses four conductive rollers and one drive roller arranged horizontally as a group. The product film is transferred from above the first conductive roller to below the second conductive roller, then below the first drive roller, and finally above the third and fourth conductive rollers, completing one electroplating cycle. Since the conductive rollers are on the same horizontal line, the drive roller is at the bottom, and the entire system uses belt drive.

[0044] Type two: V-shaped plating tank. One of them is to use five conductive rollers as a group, the conductive rollers are staggered, the product film from the first conductive roller above to the second conductive roller obliquely below, through the third conductive roller at the bottom, to the right side of the fourth conductive roller, and finally to the fifth conductive roller above; to complete a plating, the conductive roller is placed in V shape, which needs to use main shaft transmission.

[0045] The second is to use four conductive rollers and one transmission roller as a group, the four conductive rollers are parallel, one side two, the product film from the lower side of the first conductive roller to the upper side of the second conductive roller, then to the lower side of the main transmission roller, and then to the upper side of the third conductive roller, and finally through the lower side of the fourth conductive roller; to complete a plating, the conductive roller is placed in V shape, which needs to use main shaft transmission.

[0046] Type three: square plating tank, that is, to use four conductive rollers and two transmission rollers as a group, the conductive rollers are square, the product film from the upper side of the first conductive roller to the upper side of the second conductive roller, then to the lower side of the first transmission roller, through the second transmission roller, the first conductive roller and the second conductive roller are in the same horizontal plane, up to the upper side of the third conductive roller, and finally through the lower side of the fourth conductive roller, to complete a plating, the conductive roller is placed in square shape, which needs to use main shaft transmission.

Claims

1. A slotted conductive roller for electroplating a drive assembly, comprising a barrel and a shaft head, characterized in that, The shaft head comprises a first shaft head and a second shaft head, the first shaft head and the second shaft head are arranged at both ends of the roller, a first shaft head surface is arranged between the first shaft head and the roller, a second shaft head surface is arranged between the second shaft head and the roller, a plurality of conductive roller groove patterns are arranged on the outer surface of the roller, the first shaft head and the second shaft head are connected by stepped connecting rods with gradually decreasing diameters, or connecting rods with tapered inclinations, or connecting rods with diameters equal to that of the roller.

2. The slotted conductive roller for electroplating drive assembly according to claim 1, wherein, The conductive roller groove pattern is a herringbone groove.

3. The slotted conductive roller for electroplating drive assembly according to claim 1, wherein, The first shaft head surface and the second shaft head surface are arranged in parallel.

4. The slotted conductive roller for electroplating drive assembly according to claim 1, wherein The length of the roller is 0.5M-5M.

5. The slotted conductive roller for electroplating drive assembly according to claim 2, wherein The slotting width of the herringbone groove is 0.1mm-50mm, and the slotting depth is 0.1mm-10mm.

6. The slotted conductive roller for electroplating drive assembly according to claim 2, wherein The herringbone groove is treated by chamfered rubber-coated spraying or chamfered rubber-free treatment.

7. A slotted conductive roller for use in an electroplating drive assembly as defined in claim 6, wherein, The rubber-coated spraying thickness after chamfering is 0.05mm-6mm, and the width is 0.1mm-30mm.

8. The slotted conductive roller for electroplating drive assembly according to claim 5, wherein, The angle of the two side groove bodies of any two groups of adjacent herringbone grooves is 10°-160°, and the distance between the two groove bodies is 5mm-200mm.

9. The slotted conductive roller for electroplating drive assembly of claim 6, wherein, The chamfer of the two sides of the herringbone groove is R0.01mm-R5mm.

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