Steering wheel mold for solving electroplating product accumulation

Abstract

The utility model provides a steering wheel mold capable of solving the problem of electroplating product accumulation, belongs to the technical field of injection molds, mainly aims at solving the problem that the appearance of a product is affected due to the fact that a traditional mold is prone to electroplating unbalance, and adopts the technical scheme that the steering wheel mold comprises a front mold core and a rear mold core which are arranged up and down, a cavity for injection molding of a plastic part product is formed in the top of the rear mold core, a glue feeding assembly is arranged at the top of the rear mold core corresponding to the plastic part product, and two groups of profiling auxiliary assemblies are arranged at the top of the rear mold core corresponding to the tips of the two sides of the plastic part product respectively; the profiling auxiliary assembly comprises a profiling auxiliary runner, and the profiling auxiliary runner is arranged at the top of the rear mold core and located on one side of the plastic part product; the profiling auxiliary runner is arranged beside the tip of the surface of the product, so that during electroplating, the profiling auxiliary runner can form an electricity-resisting barrier to prevent cations from being adsorbed to the surface of the tip of the plastic part product, and accumulation of an electroplated layer is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and more specifically, it relates to a steering wheel mold for solving the problem of electroplating product accumulation. Background Technology

[0002] With the booming development of the automotive industry, the steering wheel, as an important component of automobiles, has increasingly higher manufacturing requirements. Among them, electroplating technology has been widely used in the production of steering wheels. Electroplating can not only improve the appearance of the product, but also enhance its corrosion resistance and wear resistance.

[0003] Currently, ordinary products can usually meet basic requirements as long as the surface is undamaged after injection molding; however, for electroplated products, during the electroplating process, the plastic part acts as the cathode and is energized. According to the principle of tip discharge, a large number of cations will be adsorbed on the surface of the plastic part wherever there are pointed features. This results in an excessively thick electroplating layer on the pointed surface of the product, forming an accumulation. Compared with other areas, the plating thickness is different, resulting in an electroplating imbalance that affects the appearance of the product. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a steering wheel mold for solving the problem of electroplating product accumulation. In the prior art, when traditional molds are used to electroplat products, the electroplating layer on the pointed surface of the product is too thick, resulting in electroplating imbalance, accumulation, and affecting the appearance of the product.

[0005] The purpose and effect of this utility model in providing a steering wheel mold to solve the problem of plating buildup in electroplated products are achieved through the following specific technical means:

[0006] A steering wheel mold for solving the problem of plating buildup in electroplated products includes a front mold core and a rear mold core arranged vertically. The top of the rear mold core has a cavity for injection molding of a plastic part. A glue injection assembly is provided on the top of the rear mold core corresponding to the plastic part. Two sets of contouring auxiliary components are also provided on the top of the rear mold core corresponding to the tips on both sides of the plastic part. The contouring auxiliary components include contouring auxiliary channels, which are located on the top of the rear mold core and on one side of the plastic part.

[0007] According to a preferred embodiment, the bottom of the contouring auxiliary flow channel is provided with a first glue inlet, one end of which is connected to the bottom of the plastic part product.

[0008] According to a preferred embodiment, the contouring auxiliary component further includes a first hot nozzle, and the first hot nozzle is disposed on the top of the contouring auxiliary flow channel.

[0009] According to a preferred embodiment, the glue injection assembly includes a main contour flow channel, and the main contour flow channel is disposed on the top of the rear mold core.

[0010] According to a preferred embodiment, the main contour flow channel is connected to the plastic part product through multiple sets of second inlets on its periphery; a second hot nozzle is provided at the top of the main contour flow channel.

[0011] According to a preferred embodiment, the top of the front mold core is provided with an A plate, the top of the A plate is provided with a hot runner plate, and the top of the A plate is provided with three sets of through holes corresponding to the two sets of first hot nozzles and second hot nozzles; the two sets of first hot nozzles and second hot nozzles pass through the three sets of through holes and are respectively inserted into the hot runner plate; the top of the hot runner plate is provided with a panel, and the top of the panel is provided with a positioning ring.

[0012] According to a preferred embodiment, a B plate is provided at the bottom of the rear mold core, a support plate is provided at the bottom of the B plate, and a base plate is connected to the bottom of the support plate by two sets of square irons, with two sets of ejector plates provided between the two sets of square irons.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up two sets of contouring auxiliary components, when using this mold, contouring auxiliary flow channels are set next to the tip of the product surface. The bottom of the contouring auxiliary flow channel is provided with a first inlet that connects to the bottom of the product, and the top is also provided with a first hot nozzle, which can control the spraying of molten plastic in the contouring auxiliary flow channel. During electroplating, these contouring auxiliary flow channels will form an anti-electric barrier, preventing the adsorption of cations to the tip surface of the plastic part, avoiding the accumulation of electroplating layer, and solving the problem that traditional molds are prone to electroplating imbalance, which affects the appearance of the product.

[0015] 2. Through the design of the injection assembly, when using this mold, a main contour runner is provided on the top of the rear mold core. The main contour runner is connected to the plastic part through multiple sets of second injection ports around its periphery, and a second hot nozzle is also provided on the top. This surrounding injection structure can ensure uniform injection of molten plastic and avoid excessive local injection thickness. At the same time, a hot runner plate is also provided on the top of the front mold core. Through cooperation with the first and second hot nozzles, it ensures the heat supply for injection and smooth flow, further improving the molding quality. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a steering wheel mold for solving the problem of electroplating product buildup, according to this utility model.

[0017] Figure 2 This is an exploded view of a steering wheel mold for solving the problem of electroplating product accumulation according to this utility model.

[0018] Figure 3 for Figure 2 Enlarged view of region a in the middle;

[0019] Figure 4 This is a schematic diagram of the assembled structure of the glue injection component and the contouring auxiliary component in a steering wheel mold for solving the problem of electroplating product accumulation according to this utility model;

[0020] Figure 5 for Figure 4 A schematic diagram of the disassembled structure.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 11. Front mold core; 12. Rear mold core; 13. Plastic part; 14. A plate; 15. Hot runner plate; 16. Panel; 17. Locating ring; 21. Contouring auxiliary runner; 22. First sprue; 23. First hot runner; 31. Main contouring runner; 32. Second sprue; 33. Second hot runner; 41. B plate; 42. Support plate; 43. Square iron; 44. Ejector plate assembly; 45. Base plate. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 5 As shown:

[0026] This utility model provides a steering wheel mold for solving the problem of electroplating product buildup. It includes a front mold core 11 and a rear mold core 12 arranged vertically. The top of the rear mold core 12 has a cavity for injection molding a plastic part 13. The top of the rear mold core 12 not only has a glue injection assembly for injecting the plastic part 13, but also two sets of contouring auxiliary components are respectively arranged at the tips of the two sides of the plastic part 13. These contouring auxiliary components all include contouring auxiliary flow channels 21, which are located on the top of the rear mold core 12 and on both sides of the plastic part 13. During the electroplating process, these contouring auxiliary flow channels 21 can form an effective "electric resistance" barrier, preventing a large number of cations from being concentrated and adsorbed towards the tips of the plastic part 13. This solves the electroplating imbalance problem that easily occurs in traditional molds, thereby avoiding the problem of excessively thick local electroplating layer buildup and providing a good guarantee for manufacturing high-quality electroplated plastic products.

[0027] Please see as follows Figure 4 and Figure 5As shown, the bottom of the contouring auxiliary flow channel 21 is provided with a first inlet 22, which allows the first inlet 22 to be connected to the bottom of the plastic part product 13. In this way, when the mold starts injection molding, molten plastic is ejected from the first inlet 22 at the bottom of the contouring auxiliary flow channel 21 to injection mold the plastic part product 13.

[0028] The conformal molding auxiliary component also includes a first hot nozzle 23, which is located at the top of the conformal molding auxiliary flow channel 21. The function of the first hot nozzle 23 is to control the flow rate of the molten plastic ejected from the conformal molding auxiliary flow channel 21. Specifically, when the injection molding process begins, the molten plastic is ejected from the first hot nozzle 23, injected into the conformal molding auxiliary flow channel 21, and finally passes through the first inlet 22 connected to the bottom of the plastic part product 13. In this process, the first hot nozzle 23 can ensure the temperature and flow rate of the molten plastic, preventing problems such as excessively high or low temperature, or excessively fast or slow flow rate when flowing through the conformal molding auxiliary flow channel 21, thereby ensuring the injection molding quality of the plastic part product 13.

[0029] Please see as follows Figure 4 and Figure 5 As shown, the injection assembly includes a main contour runner 31. The main contour runner 31 is located on the top of the rear mold core 12. The periphery of this main contour runner 31 is connected to the plastic part product 13 through multiple second injection ports 32. This surrounding injection structure ensures that the molten plastic is more evenly distributed when injected onto the product surface, avoiding excessive local injection thickness. At the same time, the top of the main contour runner 31 is also provided with a second hot nozzle 33, which can regulate the flow rate of the molten plastic in the main contour runner 31, further optimizing the overall injection molding quality.

[0030] Please see as follows Figure 2 and Figure 3 As shown, the top of the front mold core 11 is provided with an A plate 14, and the top of the A plate 14 is provided with a hot runner plate 15. It is worth noting that the top of the A plate 14 corresponds exactly to the positions of the two sets of first hot nozzles 23 and second hot nozzles 33 mentioned above, and has three sets of through holes. These through holes allow the two sets of first hot nozzles 23 and second hot nozzles 33 to pass through into the interior of the hot runner plate 15, ensuring the heat supply and flow channel unobstructed during the injection molding process, and further improving the overall molding quality. The top of the hot runner plate 15 is also provided with a panel 16, and the top of the panel 16 has a positioning ring 17.

[0031] Please see as follows Figure 1 and Figure 2 As shown, a B plate 41 is provided at the bottom of the rear mold core 12, a support plate 42 is provided at the bottom of the B plate 41, and a base plate 45 is connected to the bottom of the support plate 42 by two sets of square irons 43. Two sets of ejector plates 44 are provided between the two sets of square irons 43.

[0032] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A steering wheel mold for solving the problem of electroplating product buildup, characterized in that: The mold includes a front mold core (11) and a rear mold core (12) arranged vertically. The top of the rear mold core (12) is provided with a cavity for injection molding of a plastic part (13). The top of the rear mold core (12) is provided with a glue injection component corresponding to the plastic part (13). The top of the rear mold core (12) is also provided with two sets of contouring auxiliary components corresponding to the tips on both sides of the plastic part (13). The contouring auxiliary components include a contouring auxiliary flow channel (21). The top of the rear mold core (12) is provided with the contouring auxiliary flow channel (21), and the contouring auxiliary flow channel (21) is located on one side of the plastic part (13).

2. The steering wheel mold for solving the problem of electroplating product accumulation as described in claim 1, characterized in that: The bottom of the contour-following auxiliary flow channel (21) is provided with a first glue inlet (22), one end of which is connected to the bottom of the plastic part product (13).

3. A steering wheel mold for solving the problem of electroplating product accumulation as described in claim 1, characterized in that: The contouring auxiliary component also includes a first hot nozzle (23), and the first hot nozzle (23) is disposed on the top of the contouring auxiliary flow channel (21).

4. A steering wheel mold for solving the problem of electroplating product accumulation as described in claim 3, characterized in that: The glue injection assembly includes a main contour flow channel (31), and the main contour flow channel (31) is provided on the top of the rear mold core (12).

5. A steering wheel mold for solving the problem of electroplating product accumulation as described in claim 4, characterized in that: The main contour flow channel (31) is connected to the plastic part product (13) through multiple sets of second glue inlets (32) around its periphery; a second hot nozzle (33) is provided on the top of the main contour flow channel (31).

6. A steering wheel mold for solving the problem of electroplating product accumulation as described in claim 5, characterized in that: The front mold core (11) is provided with an A plate (14) on top, and a hot runner plate (15) is provided on top of the A plate (14). The top of the A plate (14) is provided with three sets of through holes corresponding to two sets of first hot nozzles (23) and second hot nozzles (33). The two sets of first hot nozzles (23) and second hot nozzles (33) pass through the three sets of through holes and are installed in the hot runner plate (15). The hot runner plate (15) is provided with a panel (16) on top, and a positioning ring (17) is provided on top of the panel (16).

7. A steering wheel mold for solving the problem of electroplating product accumulation as described in claim 1, characterized in that: The bottom of the rear mold core (12) is provided with a B plate (41), the bottom of the B plate (41) is provided with a support plate (42), the bottom of the support plate (42) is connected to a base plate (45) by two sets of square irons (43), and two sets of ejector plates (44) are provided between the two sets of square irons (43).

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