TWI746018B - Processing method of ball plug for diverter valve and ball plug - Google Patents

Abstract

The present invention relates to a method for processing a ball plug for a directional valve, including the following steps: providing a ball plug, which includes an outer diameter periphery and a diverting flow channel, and the outer diameter periphery includes a flow channel port connected to each other. Part and a distant part, the runner mouth part is adjacent to the branch runner, and the far part is far away from the branch runner relative to the runner mouth part; cutting the outer diameter periphery, which is gradually cut from the smaller cutting thickness of the far part to One of the larger cutting thickness of the runner opening; spraying an insulating layer to the branching runner and the runner mouth part; electroplating a plating layer to the runner mouth part and the far part, and the thickness of the plating layer at the runner mouth part is determined by the thickness of the insulating layer The current is insulated and the accumulation is thicker than the thickness of the remote part; the electroplated layer of the runner opening part is polished to a predetermined size; and the insulating layer is removed.

Description

Processing method of ball plug for diverter valve and ball plug

The present invention relates to a processing method for a ball plug of a diverter valve, especially a processing that can achieve the purpose of shortening the process time, reducing the cost, and obtaining a more wear-resistant and durable (improving product life) ball plug. Method; The present invention also relates to a ball plug made by the aforementioned processing method.

In general machinery and equipment, a directional valve is often used to switch the conveying direction when conveying fluid. The diverter valve includes a ball plug and a valve seat. The ball plug has a diverging flow channel, and the ball plug is placed in the valve seat to rotate, that is, when the ball plug rotates, the direction of the diverging flow channel will be changed to switch fluid delivery. The purpose of direction.

Traditionally, the outer diameter (outer peripheral surface) of the ball plug is electroplated with a plating layer, and when the ball plug rotates in the valve seat, friction occurs between the ball plug and the valve seat (generally made of metal), especially in the split direction The part of the runner opening at both ends of the runner is the most prone to wear.

Please refer to FIGS. 1 and 2 at the same time. FIG. 1 is a cross-sectional view of the ball plug after conventional electroplating processing, and FIG. 2 is an enlarged schematic view of part X of FIG. 1. As shown in Figures 1 and 2, in the traditional electroplating method of the ball plug 9, a layer of metal of the same thickness is cut off the outer diameter periphery (outer peripheral surface) 91 of the ball plug 9 before electroplating (as shown in Figure 2) A, B), then electroplating a predetermined thickness of the electroplating layer 92, and in the split runner 94 and the runner mouth Part 93 will be sprayed with an insulating layer 95. In other words, the thickness of the electroplated layer 92 obtained by the traditional electroplating method of the ball plug 9 on the outer diameter periphery 91 of the ball plug 9 is the same.

However, the electroplated layer 92 obtained by the above-mentioned traditional method will have two conditions: First, if the thickness of the electroplated layer 92 is thick, the entire outer periphery 91 of the ball plug 9 needs to be polished after electroplating. The time becomes longer and the cost increases, and the thickness of the electroplated layer 92 of the runner port 93 will be relatively thinner after the grinding process, so after a short period of use, it will quickly become unusable due to wear and tear; second If the thickness of the electroplated layer 92 is thin, the ball plug 9 can be used without grinding. However, as mentioned above, the thickness of the electroplated layer 92 of the runner mouth portion 93 is thin, and it will soon be used after a short period of time. The problem of fluid leakage due to wear and tear, that is, the ball plug 9 can no longer be used.

In order to improve the above-mentioned problems, the present invention proposes a method for processing the ball plug of the diverter valve, which includes the following steps:

A ball plug is provided, the ball plug includes an outer diameter periphery and a branch flow channel, and the outer diameter periphery includes a flow passage opening portion and a distant part connected to each other, and the flow passage opening portion is adjacent to the branch flow channel , The far part is far away from the branch flow path relative to the flow path mouth part;

Cutting the periphery of the outer diameter, which is a progressive cutting process from a smaller cutting thickness of the remote part to a larger cutting thickness of the runner mouth part;

Spray an insulating layer to the branch flow channel and the flow channel opening part;

A plating layer is electroplated to the runner opening part and the remote part, and the thickness of the plating layer at the runner opening part is thicker than the current insulation of the insulating layer. The thickness of the part that is far away;

Grinding and processing the electroplated layer of the runner mouth portion to a predetermined size; and

Remove the insulating layer.

By the above-mentioned processing method, the thickness of the electroplating layer at the runner opening part can be made thicker than the thickness of the remote part by the current insulation of the insulating layer, that is, the thickness of the electroplating layer at the runner opening part is larger The thickness of the remaining part, that is, the electroplated layer far away is thinner. As a result, it is possible to achieve no deformation and no grinding process (the electroplated layer at the far part does not need to be polished). The passage part is modified by micro-grinding, that is, after the electroplating is completed, only the thickened electroplated layer of the runner mouth part needs to be grind-processed to the specified size.

As mentioned above, the processing method provided by the present invention only needs to be polished and modified for the runner port part, which can indeed achieve the purpose of shortening the process time and reducing the cost. Furthermore, the processing method provided by the present invention can make the thickness of the electroplated layer of the runner mouth part thicker (as described in the above prior art, the runner mouth part is the most easily worn place during use), while the remaining part, That is, the thickness of the electroplated layer at the far part is thinner, so that the goal of obtaining a more wear-resistant and durable (improving product life) ball plug can be achieved.

The present invention also provides a ball plug, which is made by the above-mentioned processing method for the ball plug of the diverter valve, and the ball plug includes: a diverter flow channel, an outer diameter periphery, and an electroplating layer . Wherein, the periphery of the outer diameter includes a flow passage opening part and a distant part connected to each other, the flow passage opening part is adjacent to the branching flow passage, and the distance part is Relative to the flow passage opening part, it is far away from the branching flow channel; the electroplating layer is electroplated on the flow passage opening part and the distant part, and the thickness of the electroplating layer at the flow passage opening part is thicker than the thickness of the distant part.

1: ball plug

11: Periphery of outer diameter

12: Split flow channel

13: Runner mouth part

14: away from the part

15: Insulation layer

16: electroplating layer

9: Ball plug

91: outer diameter periphery

92: Plating layer

93: Runner mouth part

94: Split flow channel

95: insulating layer

t1: Smaller cutting thickness

t2: Larger cutting thickness

S01~S05: steps

Figure 1 is a cross-sectional view of the ball plug after conventional electroplating.

Fig. 2 is an enlarged schematic diagram of part X of Fig. 1.

Figure 3 is a perspective view of the ball plug of the preferred embodiment of the present invention.

Fig. 4 is a cross-sectional view of the ball plug of the preferred embodiment of the present invention.

Fig. 5 is a flowchart of a preferred embodiment of the present invention.

Fig. 6 is one of the schematic diagrams of the implementation steps of the preferred embodiment of the present invention.

FIG. 7 is the second schematic diagram of the implementation steps of the preferred embodiment of the present invention.

FIG. 8 is the third schematic diagram of the implementation steps of the preferred embodiment of the present invention.

FIG. 9 is the fourth schematic diagram of the implementation steps of the preferred embodiment of the present invention.

Please refer to FIGS. 3 and 4 at the same time. FIG. 3 is a perspective view of the ball plug according to a preferred embodiment of the present invention, and FIG. 4 is a cross-sectional view of the ball plug according to a preferred embodiment of the present invention. In Figs. 3 and 4, a ball plug 1 for a diverter valve (not shown) is shown, and it is made by the processing method provided by the present invention.

The ball plug 1 shown in FIGS. 3 and 4 includes a branch runner 12, an outer periphery 11 and an electroplating layer 16. Among them, the outer diameter periphery 11 includes a runner opening part 13 and a remote part 14 connected to each other. The runner mouth part 13 is adjacent to the branch flow channel 12, and the away part 14 is far away from the branch flow channel relative to the runner mouth part 13 12; The electroplating layer 16 is electroplated on the runner opening portion 13 and the remote portion 14, and the thickness of the electroplating layer 16 in the runner opening portion 13 is thicker than the thickness of the remote portion 14.

The processing method of the ball plug 1 for the diverter valve (not shown) will be described in detail below. In addition, the cross-sectional view of Fig. 4 shows a Y part, which is to mark the part of the ball plug 1 adjacent to the runner port 13, and the subsequent drawings (Figs. 5 to 9) will be shown as an enlarged view of the Y part for convenience. In the description, in order to better understand the processing method provided by the present invention.

Please refer to FIG. 5, which is a flowchart of a preferred embodiment of the present invention, and please refer to FIGS. 3 and 4 at the same time. In the method for processing the ball plug 1 for the diverter valve provided by the present invention, a ball plug 1 is first provided (step S01). As mentioned above, the ball plug 1 includes an outer diameter periphery 11 and a diverter flow The channel 12, in which the outer periphery 11 includes a runner opening part 13 and a remote part 14 which are connected to each other. The flow passage 12, that is, the outer periphery 11 is connected from the flow passage opening portion 13 adjacent to the branch flow passage 12 to the distant part 14 far away from the branch flow passage 12 (as shown in FIGS. 3 and 4).

Please refer to FIGS. 5 and 6 at the same time. FIG. 6 is one of the schematic diagrams of the implementation steps of the preferred embodiment of the present invention, and please refer to FIGS. 3 and 4 at the same time. After the above step S01, the outer diameter periphery 11 of the ball plug 1 is cut and processed. In this cutting step, the smaller cutting thickness t1 of the far part 14 is progressively cut to the runner One of the mouth portions 13 has a larger cutting thickness t2 (step S02) (as shown in FIG. 6, the cut-out portion is indicated by a broken line). In other words, the remote portion 14 of the outer diameter periphery 11 of the ball plug 1 is cut to have a smaller cutting thickness t1, and then gradually increases the cutting thickness toward the runner opening portion 13, and then is cut to the runner opening portion 13 A larger cutting thickness t2.

Please refer to FIGS. 5 and 7 at the same time. FIG. 7 is the second schematic diagram of the implementation steps of the preferred embodiment of the present invention. Please also refer to FIGS. 3 and 4 at the same time. After the above step S02, an insulating layer 15 is sprayed onto the branch runner 12 and the runner opening 13 (step S03) (as shown in FIG. 7).

Please refer to FIGS. 5 and 8 at the same time. FIG. 8 is the third schematic diagram of the implementation steps of the preferred embodiment of the present invention. Please also refer to FIGS. 3 and 4 at the same time. After the above step S03, a plating layer 16 is electroplated to the runner opening portion 13 and the remote portion 14, and the thickness of the plating layer 16 at the runner opening portion 13 is deposited thicker than the thickness of the remote portion 14 by the current insulation of the insulating layer 15 (Step S04) (as shown in Fig. 8). In other words, because the runner opening portion 13 is sprayed with the insulating layer 15, the current during electroplating cannot pass through the runner opening portion 13, so the electroplating layer 16 will gradually accumulate and thicken on the runner opening portion 13.

Please refer to FIGS. 5 and 9 at the same time. FIG. 9 is the fourth schematic diagram of the implementation steps of the preferred embodiment of the present invention, and please refer to FIGS. 3 and 4 at the same time. After the above step S04, the electroplated layer 16 of the runner opening portion 13 is polished to a predetermined size (step S05) (as shown in FIG. 9), and the predetermined size is the predetermined size. In other words, the electroplated layer 16 of the outer periphery 11 of the ball plug 1 far away from the part 14 will not be deformed, and no grinding process is required. It is only necessary to deposit a thickened electroplated layer on the runner opening 13 16 can be slightly polished to the required specifications. At this time, the thickness of the electroplated layer 16 of the runner opening portion 13 is greater than the thickness of the electroplated layer 16 away from the portion 14 of the ball plug 1.

Finally, because the main function of the insulating layer 15 is to prevent the electroplating layer 16 in the branch runner 12 during electroplating, the insulating layer 15 will be removed when the electroplating is completed (step S06).

As mentioned above, with the above-mentioned processing method, after the ball plug 1 is electroplated, it is only necessary to perform some micro-grinding processing and modification on the runner opening portion 13, which can indeed shorten the process time of the ball plug 1 and relatively reduce the cost.

In addition, as described above in the prior art, the runner opening 13 is the most easily worn area during use, and the processing method provided by the present invention can make the thickness of the plating layer 16 of the runner opening 13 thicker, while the rest Part, that is, the thickness of the electroplated layer 16 far away from the portion 14 is relatively thin, that is, the thickened electroplated layer 16 of the runner portion 13 can make the ball plug 1 more wear-resistant and durable during use, and relatively improve the ball The service life of plug 1.

The above are only the preferred specific embodiments of the present invention, which are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the present invention. Within the scope of protection.

S01~S06: Step

Claims (2)

A processing method for the ball plug of the diverter valve, including the following steps: A ball plug is provided, the ball plug includes an outer diameter periphery and a branch flow channel, and the outer diameter periphery includes a flow passage opening portion and a distant part connected to each other, and the flow passage opening portion is adjacent to the branch flow channel , The far part is far away from the branch flow path relative to the flow path mouth part; Cutting the periphery of the outer diameter, which is a progressive cutting process from a smaller cutting thickness of the remote part to a larger cutting thickness of the runner mouth part; Spray an insulating layer to the branch flow channel and the flow channel opening part; Electroplating an electroplated layer to the runner opening part and the remote part, and the thickness of the plating layer at the runner opening part is deposited thicker than the thickness of the remote part by the current insulation of the insulating layer; Grinding and processing the electroplated layer of the runner mouth portion to a predetermined size; and Remove the insulating layer. A ball plug is made by the processing method of the ball plug for the diverter valve as described in item 1 of the scope of patent application, and the ball plug includes: One-way flow path; An outer diameter periphery, the outer diameter periphery includes a flow passage opening portion connected to each other and a distant portion, the flow passage opening portion is adjacent to the branching flow channel, and the distant part is far away from the branching direction relative to the flow passage opening part Runner; and An electroplating layer is electroplated on the runner opening part and the remote part, and the thickness of the electroplating layer at the runner opening part is thicker than the thickness of the remote part.

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