CN220450359U

CN220450359U - Novel electroplating hanger and electroplating equipment

Info

Publication number: CN220450359U
Application number: CN202321764366.7U
Authority: CN
Inventors: 董伦; 魏春雷
Original assignee: Hebei Zhongchi Electronic Technology Co ltd
Current assignee: Hebei Zhongchi Electronic Technology Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-02-06
Anticipated expiration: 2033-07-06

Abstract

The utility model discloses a novel electroplating hanger and electroplating equipment, which belong to the technical field of electroplating process equipment, wherein the ellipsoidal electroplating hanger with small two ends and large middle part comprises a plurality of support rings and upright posts inside the support rings, and the support rings are fixed at intervals along the length direction of the upright posts from bottom to top; the outer side of the support ring is provided with a plurality of connecting pieces at intervals, the electroplating product is arranged at the tail ends of the connecting pieces, the distance between the electroplating product and the support ring is gradually increased from the upper end and the lower end of the electroplating rack to the middle part, and the number of the connecting pieces on the electroplating rack is larger than that of the two ends of the connecting pieces on the electroplating rack; the electroplating device comprises an electroplating pool and an electroplating hanger, wherein anode plates are arranged on the side walls around the electroplating pool, and the electroplating hanger is arranged on a fixed column in the middle of the electroplating pool and is connected with the cathode. The utility model fixes the electroplating product on the ellipsoidal electroplating hanger; the distance between the electric line of force sent by the anode plate and the middle part of the electroplating hanger is smaller than the distance between the electric line of force and the two ends of the electroplating hanger, so that the tip effect is weakened, the uniformity of a plating layer is improved, the cost is reduced, and the electroplating quality of a product is ensured.

Description

Novel electroplating hanger and electroplating equipment

Technical Field

The utility model belongs to the technical field of electroplating process equipment, and particularly relates to a novel electroplating hanger and electroplating equipment.

Background

In electroplating production, electroplating uniformity is an important index for checking the quality of a plating layer and the capability of a plating tank, and the index has great significance for improving the consistency of products and has significance for reducing the cost for electroplating noble metals. At present, the phenomenon that plating layers are uneven exists after the existing product is electroplated, the upper and lower dimensions of the existing hanger are the same, the thickness of the product plating layers at the upper and lower edges of the hanger is obviously higher than that of the middle part of the hanger in the electroplating process by adopting the existing hanger, the phenomenon is called tip effect, and the electric power lines are used for representing the current and the metal atom deposition in the electroplating process, namely, more electric power lines are distributed at the upper and lower edges of the hanger. Therefore, how to realize the uniformity of the electroplating layer is the basic research direction of the electroplating industry.

In addition, the company adopts the existing electroplating equipment to carry out gold plating on the product, the thickness of the electroplated gold layer is extremely poor by 0.49 microns, the COV value is 13% -15%, and the situation that noble metal is wasted and the cost is increased exists.

Disclosure of Invention

The utility model aims to provide a novel electroplating hanger and electroplating equipment, and aims to solve the technical problems of poor uniformity of a plating layer of product electroplating in the prior art, noble metal waste and increased cost.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the novel electroplating hanger comprises a plurality of supporting rings and a plurality of stand columns, wherein the stand columns are arranged in the supporting rings and are connected with the supporting rings, and the supporting rings are arranged at intervals along the length direction of the stand columns from bottom to top; the outer side edge of the support ring is provided with a plurality of connecting pieces at intervals, the connecting pieces are used for being connected with electroplating products, the electroplating products are arranged at the tail ends of the connecting pieces, the distance between the electroplating products and the support ring is gradually increased from the upper end and the lower end of the electroplating hanger to the middle of the electroplating hanger, and the electroplating hanger is in an ellipsoidal shape with small two ends and large middle; the number of the connecting pieces on the supporting rings at the upper end and the lower end of the electroplating hanger is larger than that of the connecting pieces on the supporting rings at the middle part of the electroplating hanger.

Preferably, the connecting piece is a hook, and the outer side edges of the supporting rings at the upper end and the lower end of the electroplating hanger are fixedly connected with a plurality of hooks; the rest hooks are fixedly connected with rest supporting rings through connecting rods, and the lengths of the connecting rods are gradually lengthened from the upper end and the lower end of the electroplating hanger to the middle of the electroplating hanger.

Preferably, the connecting piece is a pair of jack catch that is used for the centre gripping product, the jack catch all links to each other with the support ring through the connecting rod, the length of connecting rod is from the upper and lower both ends to the middle part of electroplating hanger extension gradually.

Preferably, the number of the upright posts is four, and the four upright posts are uniformly distributed on the inner wall of the supporting ring.

Preferably, the top of electroplating hanger is equipped with connecting plate and handle, the connecting plate is fixed in the top of stand, the handle links to each other with the connecting plate.

Preferably, the inside of the supporting rings at the upper end and the lower end of the electroplating rack is provided with a fixed ring which is used for being matched with a fixed column at the middle part of the electroplating pool.

The utility model also provides electroplating equipment which comprises an electroplating pool and the electroplating hanging tool, wherein anode plates connected with anodes are arranged on the side walls of the periphery of the electroplating pool, and the electroplating hanging tool is arranged on a middle fixing column of the electroplating pool and connected with a cathode.

Preferably, the anode plate corresponds to the middle part of the electroplating rack, and is used for enabling the middle part of the electric line of force sent by the anode plate to reach the middle part of the electroplating rack in parallel, and enabling the upper side and the lower side to incline to reach the upper end and the lower end of the electroplating rack.

Preferably, the side of the electroplating pool is provided with an auxiliary groove communicated with the electroplating pool for stabilizing the liquid level in the electroplating pool.

Preferably, the anode plate is fixed on the inner wall of the electroplating tank through a titanium clamp, a PP baffle is further arranged on the inner side of the inner wall of the electroplating tank, and the anode plate is arranged between the PP baffle and the inner wall of the electroplating tank.

The beneficial effects of adopting above-mentioned technical scheme to produce lie in: compared with the prior art, the utility model is used for fixing electroplating products by arranging the plurality of connecting pieces at intervals on the outer side of the supporting ring of the ellipsoidal electroplating hanger; and the distance between the electroplating product and the supporting ring is gradually increased from the upper end and the lower end of the electroplating rack to the middle part, and meanwhile, the number of connecting pieces on the supporting ring at the upper end and the lower end of the electroplating rack is larger than that of connecting pieces on the supporting ring at the middle part of the electroplating rack, so that the distance between the electric line sent by the anode plate and the middle part of the electroplating rack is smaller than that between the electric line and the two ends of the electroplating rack, and the tip effect is weakened. The utility model can effectively improve the uniformity of the electroplating coating, reduce the production cost and ensure the electroplating quality of the product.

Drawings

FIG. 1 is a schematic structural view of a novel electroplating rack provided by an embodiment of the utility model;

FIG. 2 is a schematic view of a novel electroplating rack according to another embodiment of the present utility model;

FIG. 3 is a schematic view of the bottom support ring of FIG. 2;

FIG. 4 is a schematic diagram of the operation of an electroplating apparatus according to an embodiment of the present utility model;

FIG. 5 is a top view of an electroplating cell in one embodiment of the utility model;

FIG. 6 is a schematic diagram showing the comparison of the gold layer thickness of the gold plating of the electroplating rack provided by the utility model with the plating layer thickness of the common rack;

in the figure: 00-electroplating products, 100-electroplating hanging tools and 200-electroplating tanks; the device comprises a support ring 1, a stand column 2, a hook 3, a connecting rod 4, a claw 5, a connecting plate 6, a handle 7, a fixed ring 8, a fixed column 9, an anode plate 10, a secondary tank 11, a PP baffle 12 and a connecting rod 13.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1, the novel electroplating hanger provided in this embodiment, the electroplating hanger 100 includes a plurality of support rings 1 and a plurality of columns 2, the plurality of columns 2 are disposed in the support rings 1 and connected to the support rings 1, and the plurality of support rings 1 are disposed at intervals along the length direction of the columns 2 from bottom to top; the outer side edge of the support ring 1 is provided with a plurality of connecting pieces at intervals, the connecting pieces are used for being connected with electroplating products 00, the electroplating products 00 are arranged at the tail ends of the connecting pieces, the distance between the electroplating products 00 and the support ring 1 is gradually increased from the upper end and the lower end of the electroplating hanger 100 to the middle of the electroplating hanger 100, and the electroplating hanger 100 is in an ellipsoidal shape with small ends and large middle; the number of the connecting pieces on the supporting rings 1 at the upper end and the lower end of the electroplating hanger 100 is larger than that of the connecting pieces on the supporting rings 1 in the middle, and the uniformity of the thickness of a product plating layer can be improved by distributing the loading density on the electroplating hanger. In this embodiment, the connecting piece is a hook 3, and the outer edges of the supporting rings 1 at the upper end and the lower end of the electroplating hanger 100 are fixedly connected with a plurality of hooks 3; the rest hooks 3 are fixedly connected with the rest supporting rings 1 through connecting rods 4, and the lengths of the connecting rods 4 are gradually lengthened from the upper end and the lower end of the electroplating hanger 100 to the middle.

The electroplating hanger is adopted for electroplating, the length of the upper layer of hooks and the lower layer of hooks of the electroplating hanger is shortened, the length is changed into 50% -70% of the length of the hooks in the normal thickness area, and the shape of the whole hanger is more approximate to an ellipse; the distance of each layer of hooks is changed, the distance between the hooks in the low-current density area is increased by 20% -40%, the number of power lines obtained by a single product in the low-thickness area is increased by 20% -40%, and the number of power lines obtained by a single product in the high-thickness area is reduced by 10% -20%.

In another embodiment of the present utility model, as shown in fig. 2, the connection member is a pair of claws 5 for clamping a product, the claws 5 are connected to the support ring 1 through connection rods 4, and the length of the connection rods 4 is gradually increased from the upper end and the lower end of the electroplating rack 100 to the middle.

Fig. 1 is a hanging plating type hanger, fig. 2 is a clamping plating type hanger, all of which belong to special-shaped hangers, and the electroplating hanger shown in fig. 1 and 2 can increase the distance between the electroplating products at the upper end and the lower end of the hanger and the anode plate relative to the distance between the electroplating products at the middle part of the hanger, so that the distance between the electric line of force sent by the anode plate and the middle part of the hanger is smaller than the distance between the electric line of force and the two ends of the hanger, and further the tip effect is weakened.

During concrete manufacturing, four upright posts 2 are adopted, and the four upright posts 2 are uniformly distributed on the inner wall of the support ring 1. Of course, the number of posts may also be set according to the specific dimensions of the support ring.

As a preferable structure, the top of the electroplating hanger 100 is provided with a connecting plate 6 and a handle 7, the connecting plate 6 is fixed at the top end of the upright post 2, and the handle 7 is connected with the connecting plate 6. The structure is adopted to facilitate taking and plating the hanger.

Further optimizing the above technical solution, as shown in fig. 3, the inside of the supporting rings 1 at the upper and lower ends of the electroplating rack 100 are respectively provided with a fixing ring 8, which is used for matching with the fixing column 9 in the middle of the electroplating pool 200, as shown in fig. 5. Wherein, the fixed ring 8 can be an annular plate for connecting the fixed column 9 and the supporting ring 1; or the fixing ring adopts a circular ring (figure 3), and is connected with the circular ring through a plurality of connecting rods 13, so that the fixing of the supporting ring relative to the fixing column is realized. The electroplating hanger can be fixed in the electroplating pool by the cooperation of the fixing ring and the fixing column.

The utility model also provides electroplating equipment, as shown in fig. 4, which comprises an electroplating tank 200 and the electroplating rack 100, wherein anode plates 10 connected with anodes are arranged on the side walls of the periphery of the electroplating tank 200, and the electroplating rack 100 is arranged on a middle fixing column 9 of the electroplating tank 200 and connected with a cathode. The anode plate 10 corresponds to the middle of the electroplating rack 100, and is used for enabling the middle of a power line sent by the anode plate 10 to reach the middle of the electroplating rack 100 in parallel, and enabling the upper side and the lower side to reach the upper end and the lower end of the electroplating rack 100 in an inclined manner.

As a preferred structure, as shown in fig. 4, a side surface of the plating cell 200 is provided with a sub-tank 11 communicating with the plating cell 200 for stabilizing the liquid level in the plating cell 200. The structure can avoid fluctuation of the channel of the power line caused by fluctuation of the liquid level in the electroplating pool, and the liquid level in the electroplating pool can be stabilized by adding the auxiliary groove, so that the purpose of removing the variable is achieved.

Specifically, as shown in fig. 5, the anode plate 10 is fixed on the inner wall of the electroplating tank 200 by a titanium clamp, a PP baffle 12 is further disposed on the inner side of the inner wall of the electroplating tank 200, and the anode plate 10 is disposed between the PP baffle 12 and the inner wall of the electroplating tank 200. The position of the anode plate is fixed and adjusted through the titanium clamp.

The electroplating hanger (special-shaped hanger) provided by the utility model is adopted to carry out gold plating treatment on the product, and the thickness of the gold layer of the product on each layer of supporting ring is shown in figure 6 relative to the thickness of the plating layer of the common hanger. The product of the two electroplating racks after electroplating is extremely reduced from 0.49 mu m to 0.23 mu m by about 50 percent; the average value was reduced by about 10% from 1.29 to 1.15 over the minimum required value. The gold plating cov value is reduced from 13-15% to 7-10%.

After the plating hanger disclosed by the utility model is used for plating gold, the pure gold is saved by 8%, and the plating metal is greatly saved by adopting the plating hanger disclosed by the utility model for plating.

In summary, by adjusting the distance between the hooks and the claws around the electroplating rack and the supporting ring, the distance between the hooks or the claws at the upper end and the lower end is shortened, the distance between the hooks or the claws and the anode plate is increased, the overall shape of the rack is smoother, and the tip effect of the upper edge and the lower edge of the circular rack can be reduced; the distance between the hooks or the clamping claws on each layer of supporting ring on the electroplating hanger is adjusted, the number of the hooks or the clamping claws in a unit area is changed, and the number of the power lines is redistributed, so that the distribution of the power lines is more average.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. Novel electroplating hanger is characterized in that: the electroplating hanger comprises a plurality of supporting rings and a plurality of stand columns, wherein the stand columns are arranged in the supporting rings and connected with the supporting rings, and the supporting rings are arranged at intervals along the length direction of the stand columns from bottom to top; the outer side edge of the support ring is provided with a plurality of connecting pieces at intervals, the connecting pieces are used for being connected with electroplating products, the electroplating products are arranged at the tail ends of the connecting pieces, the distance between the electroplating products and the support ring is gradually increased from the upper end and the lower end of the electroplating hanger to the middle of the electroplating hanger, and the electroplating hanger is in an ellipsoidal shape with small two ends and large middle; the number of the connecting pieces on the supporting rings at the upper end and the lower end of the electroplating hanger is larger than that of the connecting pieces on the supporting rings at the middle part of the electroplating hanger.

2. The novel electroplating rack of claim 1, wherein: the connecting piece is a hook, and the outer side edges of the supporting rings at the upper end and the lower end of the electroplating hanger are fixedly connected with a plurality of hooks; the rest hooks are fixedly connected with rest supporting rings through connecting rods, and the lengths of the connecting rods are gradually lengthened from the upper end and the lower end of the electroplating hanger to the middle of the electroplating hanger.

3. The novel electroplating rack of claim 1, wherein: the connecting piece is a pair of jack catch that is used for the centre gripping product, the jack catch all links to each other with the holding ring through the connecting rod, the length of connecting rod is from the upper and lower both ends to the middle part of electroplating hanger extension gradually.

4. The novel electroplating rack of claim 1, wherein: the number of the upright posts is four, and the four upright posts are uniformly distributed on the inner wall of the supporting ring.

5. The novel electroplating rack of claim 1, wherein: the top of electroplating hanger is equipped with connecting plate and handle, the connecting plate is fixed in the top of stand, the handle links to each other with the connecting plate.

6. The novel electroplating rack of claim 1, wherein: the inside of both ends supporting ring all is equipped with the solid fixed ring about electroplating hanger for with the fixed column phase-match in electroplating the pond middle part.

7. An electroplating apparatus, characterized in that: the novel electroplating rack comprises an electroplating tank and the novel electroplating rack as claimed in claims 1-6, anode plates connected with anodes are arranged on the side walls around the electroplating tank, and the electroplating rack is arranged on a middle fixing column of the electroplating tank and connected with a cathode.

8. An electroplating apparatus according to claim 7, wherein: the anode plate corresponds to the middle part of the electroplating hanger and is used for enabling the middle part of a power line sent out by the anode plate to reach the middle part of the electroplating hanger in parallel and enabling the upper side and the lower side of the power line to incline to reach the upper end and the lower end of the electroplating hanger.

9. An electroplating apparatus according to claim 8, wherein: the side of the electroplating pool is provided with an auxiliary groove communicated with the electroplating pool and used for stabilizing the liquid level in the electroplating pool.

10. An electroplating apparatus according to claim 9, wherein: the anode plate is fixed on the inner wall of the electroplating tank through the titanium clamp, a PP baffle is further arranged on the inner side of the inner wall of the electroplating tank, and the anode plate is arranged between the PP baffle and the inner wall of the electroplating tank.