Convenient double-color island part electroplating method

Abstract

The invention relates to the field of electroplating, and particularly discloses a convenient double-color island part electroplating method. Comprising the following steps that 1, an inner ring is formed, specifically, the inner ring is formed through a material which cannot be electroplated, and a clamping foot forming hole and a through hole are reserved in the position, opposite to the center part, of the inner ring; step 2, forming an electroplated part, forming an outer ring on the periphery of the inner ring by adopting an electroplated material, and injecting the electroplated material into the central part of the inner ring from the through hole to form a central part; step 3, forming a conductive part, forming an outer ring conductive clamping pin on the back surface of the outer ring, forming a central conductive clamping pin on the back surface of the inner ring, and enabling the central conductive clamping pin to penetrate through a clamping pin forming hole and to be connected with the back surface of the central part; and 4, electroplating is conducted, specifically, the outer ring and the center part are electroplated with the outer ring conductive clamping pin and the center conductive clamping pin as conductive parts during electroplating, and the electroplating range covers the front face of the outer ring and the front face of the center part. According to the electroplating method for the double-color island part, the problem that an island structure cannot be electroplated is solved.

Description

Technical Field

[0001] This invention relates to the field of electroplating, and more specifically to a method for electroplating two-color island parts. Background Technology

[0002] Car interiors are typically made of large areas of matte or soft materials such as leather, plastic, and wood grain. The horn area usually has a relatively uniform color. Some car manufacturers have designed a horn with electroplating on the center of the outer and inner rings. This requires that the color of the outer and center of the horn differ from the color of the inner ring. After testing, it was found that using colored coatings or two different colored materials to form the outer, inner, and center rings separately could not achieve the desired effect, so electroplating was the only option.

[0003] Although there is a patent such as application number CN202021303578.1, which discloses a two-color injection molded partitioned electroplated decorative integrated part for automobile seats, including a decorative part and a protrusion for installation in the seat cover; the decorative part and the protrusion are an integrated structure, the surface of the decorative part is an electroplated area, the inner surface of the protrusion is a non-electroplated area, and a groove is formed at the junction of the electroplated area of ​​the decorative part and the non-electroplated area of ​​the protrusion.

[0004] The above improvements combine injection molding and electroplating, shortening the process flow. However, when applied to a loudspeaker, the loudspeaker has an inner ring, an outer ring, and a center, and the center and outer ring are separated by other structures of the inner ring. This results in the center of the loudspeaker becoming an isolated island that cannot connect with the outer ring, making electroplating impossible during injection molding. Summary of the Invention

[0005] The present invention aims to provide a convenient electroplating method for two-color island parts to solve the problem that island structures cannot be electroplated.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a method for electroplating two-color island parts, comprising the following steps: Step 1: Inner ring forming. The inner ring is formed using a material that cannot be electroplated, and the forming holes and through holes are reserved at the positions of the inner ring and the center. Step 2: Electroplating part forming. The outer ring is formed by using an electroplatable material on the outer periphery of the inner ring. The electroplatable material is injected into the center of the inner ring through the through hole to form the center part. Step 3: Conductive parts are formed. Outer ring conductive pins are formed on the back of the outer ring, and central conductive pins are formed on the back of the inner ring. The central conductive pin passes through the pin forming hole and is connected to the back of the center. Step 4: Electroplating. Electroplating is performed on the outer ring and the center, using the outer ring conductive pins and the center conductive pins as the conductive parts. The electroplating area covers the front of the outer ring and the front of the center.

[0007] In this design, "electroplated materials" refers to materials whose surfaces can be plated with metal or alloys through an electroplating process; "non-electroplated materials" refers to materials whose surfaces cannot be plated with metal or alloys through an electroplating process. The front side is the exposed side of the horn during installation, and the back side is the side of the horn that is located inside the vehicle body and not exposed during installation.

[0008] The beneficial effects of this plan are: 1. This solution connects the outer ring and center section to the power supply by forming conductive pins on the back of the outer ring and center section, with the central conductive pin penetrating through the inner ring. This does not damage the integrity of the speaker's front surface, allowing for island-like electroplating. Furthermore, electroplating of the outer ring and center section can be performed simultaneously in a single operation, resulting in higher processing efficiency and a more uniform and consistent plating effect on both sections.

[0009] 2. The materials of the center part and the inner ring are different in this solution. In this solution, a through hole is reserved on the inner ring, and then the electroplatable material is injected into the front of the inner ring to form the center part on the front of the inner ring. At this time, the remaining electroplatable material stays in the through hole and is blocked by the center part. Therefore, after the speaker is installed, there will be no excess material on the front of the center part, so that the speaker can still maintain a good appearance.

[0010] Similarly, the forming hole of the clip allows the central conductive clip located on the back of the inner ring to connect with the center, ensuring that the center can be connected to the power supply during electroplating in step 4. After the speaker is installed, the center and the inner ring can also shield the central conductive clip to further ensure that the speaker maintains a good appearance.

[0011] Furthermore, in step 1, before the inner ring is formed, an inner ring cavity, a central cavity, and a central conductive pin cavity are formed, and the central cavity is connected to the central conductive pin cavity, while the inner ring cavity and the central cavity are isolated at the through hole position.

[0012] The beneficial effects of this solution are: the central conductive pin and the central part can be formed simultaneously, resulting in higher forming efficiency.

[0013] Furthermore, the outer ring, the center, the outer ring conductive pins, and the center conductive pins are made of the same material, and steps 2 and 3 are performed simultaneously.

[0014] The beneficial effect of this solution is that it further improves molding efficiency.

[0015] Furthermore, the inner ring, outer ring, center, outer ring conductive pins, and center conductive pins are all injection molded.

[0016] The beneficial effects of this solution are that injection molding can maintain high precision while ensuring high molding efficiency.

[0017] Furthermore, step 1 is completed at the first injection molding station, while steps 2 and 3 are completed at the second injection molding station.

[0018] The beneficial effects of this solution are as follows: Step 1 is formed using a non-electroplated material, while Steps 2 and 3 are formed using electroplated materials. By using different materials, this solution allows Step 1 to be completed at a separate injection molding station. After the inner ring is formed at the first injection molding station, it is then injected at the second injection molding station. At this time, the first injection molding station can continue to form the next inner ring, avoiding station idling and thus improving the overall processing efficiency.

[0019] Furthermore, the second injection molding station is equipped with a slider, which has a flow channel inside, and the flow channel can communicate with the through hole.

[0020] The beneficial effects of this solution are as follows: After completing step 1, the injection mold will move to the second injection station. At this time, the sliding slider can quickly connect the runner and the through hole, further improving the molding efficiency of steps 2 and 3.

[0021] Furthermore, the number of outer ring conductive pins formed in step 3 is greater than or equal to 2, and all outer ring conductive pins are distributed along the inner ring circumference.

[0022] The beneficial effects of this solution are: multiple outer ring conductive pins can conduct electricity to the outer ring better and more evenly, thereby achieving a uniform electroplating effect. Attached Figure Description

[0023] Figure 1 This is a perspective view of the island component formed according to an embodiment of the present invention. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: outer ring 1, outer ring conductive pin 11, inner ring 2, through hole 21, and center conductive pin 3.

[0025] Example An embodiment discloses a method for electroplating two-color island components, comprising the following steps: Step 1: Inner ring forming, combined Figure 1 First, an inner ring cavity, a central cavity, and a central conductive pin cavity are formed, and the central cavity is connected to the central conductive pin cavity. The inner ring cavity and the central cavity are isolated at the through hole 21 position. The inner ring 2 is injection molded using a non-electroplated material at the first injection molding station, and a pin forming hole and a through hole 21 are reserved at the relative position of the inner ring 2 and the central part. Step 2: Electroplating part forming. Move the injection mold to the second injection station to form the outer ring cavity and two outer ring conductive pin cavities. Make the two outer ring conductive pin cavities opposite to the left and right ends of the outer ring 1 respectively, and connect the back of the outer ring cavity with the outer ring conductive pin cavity and connect the outer ring conductive pin cavity with the central conductive pin cavity. A slider is set on the second injection molding station, and a flow channel is set inside the slider. Then, the flow channel is connected to the through hole 21 by sliding the slider. Then, injection molding is performed. During injection molding, the electroplating material is injected into the center of the inner ring from the through hole 21 to form the center part. The electroplating material enters the outer ring cavity to form the outer ring 1. Step 3: The conductive part is formed. The electroplating material enters the central conductive pin cavity to form the central conductive pin 3, and enters the outer ring conductive pin cavity to form the outer ring conductive pin 11, so that the formed outer ring conductive pin 11 is connected to the back of the outer ring 1, and the central conductive pin 3 passes through the inner ring 2 and is connected to the back of the center. Step 4: Electroplating. Electroplating is performed on the outer ring 1 and the center portion, using the outer ring conductive pins 11 and the center conductive pins 3 as the conductive parts. The electroplating area covers the front surface of the outer ring 1 and the front surface of the center portion. The injection molding and electroplating processes involved in the above steps are existing technologies and will not be described in detail in this embodiment.

[0026] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A method for electroplating two-color island components, characterized in that: Includes the following steps: Step 1: Inner ring forming. The inner ring is formed using a material that cannot be electroplated, and the forming holes and through holes are reserved at the positions of the inner ring and the center. Step 2: Electroplating part forming. The outer ring is formed by using an electroplatable material on the outer periphery of the inner ring. The electroplatable material is injected into the center of the inner ring through the through hole to form the center part. Step 3: Conductive parts are formed. Outer ring conductive pins are formed on the back of the outer ring, and central conductive pins are formed on the back of the inner ring. The central conductive pin passes through the pin forming hole and is connected to the back of the center. Step 4: Electroplating. Electroplating is performed on the outer ring and the center, using the outer ring conductive pins and the center conductive pins as the conductive parts. The electroplating area covers the front of the outer ring and the front of the center.

2. The electroplating method for two-color island parts according to claim 1, characterized in that: Step 1: Before forming the inner ring, first form the inner ring cavity, the central cavity, and the central conductive pin cavity. The central cavity is connected to the central conductive pin cavity, and the inner ring cavity and the central cavity are isolated at the through hole position.

3. The electroplating method for two-color island parts according to claim 2, characterized in that: The outer ring, the center, the outer ring conductive pins, and the center conductive pins are made of the same material, and steps 2 and 3 are performed simultaneously.

4. The electroplating method for two-color island parts according to claim 1, characterized in that: The inner ring, outer ring, center, outer ring conductive pins, and center conductive pins are all injection molded.

5. The electroplating method for two-color island parts according to claim 4, characterized in that: Step 1 is completed at the first injection molding station, and steps 2 and 3 are completed at the second injection molding station.

6. The electroplating method for two-color island parts according to claim 5, characterized in that: The second injection molding station is equipped with a slider, which has a flow channel that can communicate with the through hole.

7. The electroplating method for two-color island parts according to claim 1, characterized in that: The number of conductive pins on the outer ring formed in step 3 is greater than or equal to 2, and all the conductive pins on the outer ring are distributed along the circumference of the inner ring.

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