Tungsten filament surface lubricating layer coating device

Abstract

The tungsten filament surface lubricating layer coating device comprises a coating groove with an opening in the upper end, a coating pipeline arranged above the coating groove and used for allowing a tungsten filament to penetrate through, a wire guide wheel arranged in the coating groove and used for guiding the tungsten filament, and an aquadag conveying channel communicated with the coating pipeline. The graphite milk is conveyed into the coating pipeline through the ink milk conveying channel, the tungsten filament penetrates through the coating pipeline to form a graphite coating on the outer surface, redundant graphite milk falls into the coating groove, and the tungsten filament penetrating through the coating pipeline is guided by the wire guide wheel to penetrate out of the coating groove. According to the coating device, accurate conveying and uniform coating of aquadag are achieved, it is ensured that the diamond cutting line has excellent cutting performance and stability in the using process, and the device should further have an effective recycling and processing mechanism for redundant aquadag so that the production cost can be reduced, and the environmental burden can be reduced.

Description

Technical Field

[0001] The utility model belongs to the field of diamond cutting wire manufacturing, in particular to a tungsten wire surface lubricating layer coating device. Background Art

[0002] As a high-precision and high-efficiency cutting tool, diamond cutting wire is widely used in the processing of semiconductors, glass, ceramics and other materials. Its core component, diamond cutting wire, is usually made of high-strength and high-toughness tungsten wire as the matrix, and a layer of lubricating material is coated on its surface to improve cutting performance and extend service life.

[0003] As the base material of diamond cutting wire, tungsten wire has excellent high temperature resistance, wear resistance and mechanical properties. However, pure tungsten wire often has a large friction coefficient during the cutting process, which is easy to generate heat and wear, affecting the cutting efficiency and cutting quality. Therefore, lubrication treatment of the tungsten wire surface becomes the key to improve the performance of diamond cutting wire.

[0004] Existing graphite emulsion coating devices often have unreasonable conveying channel design problems when conveying graphite emulsion. Some devices set the graphite emulsion conveying channel outside the coating tank, which makes the graphite emulsion easily affected by the external environment, such as temperature and humidity, during the conveying process, thus affecting its stability and coating effect. At the same time, this design also increases the complexity and maintenance cost of the device.

[0005] At the same time, the existing coating device also has certain limitations when dealing with excess graphite emulsion. Excess graphite emulsion is often directly discharged into the coating tank, lacking an effective recycling and reuse mechanism. This not only causes waste of graphite emulsion, but also increases production costs and environmental burdens. Utility Model Content

[0006] The utility model aims to provide a tungsten wire surface lubricating layer coating device to solve the technical problems of stability when graphite emulsion is coated on the tungsten wire surface and recycling of graphite emulsion.

[0007] In order to achieve the above-mentioned purpose, the specific technical scheme of a tungsten wire surface lubricating layer coating device of the utility model is as follows:

[0008] A tungsten wire surface lubricating layer coating device, characterized in that it comprises a coating groove with an upper end opening, a coating pipeline arranged above the coating groove for the tungsten wire to pass through, a guide wheel arranged in the coating groove for guiding the tungsten wire, and a graphite emulsion conveying channel connected to the coating pipeline;

[0009] The ink emulsion conveying channel conveys the graphite emulsion into the coating pipe, the tungsten wire passes through the coating pipe to form a graphite coating on the outer surface, and the excess graphite emulsion falls into the coating tank. The tungsten wire passing through the coating pipe is guided by the wire wheel to pass out of the coating tank.

[0010] As a further improvement of the utility model, both ends of the rotating shaft of the wire wheel are arranged on the side walls on both sides of the coating tank, and the tungsten wire passes through the coating pipe and is guided by the wire wheel to pass out of the coating tank.

[0011] As a further improvement of the utility model, the graphite emulsion delivery channel passes through the bottom of the coating tank and is connected to the coating pipeline, and a control valve for controlling the flow of graphite emulsion is provided on the graphite emulsion delivery channel.

[0012] As a further improvement of the utility model, a graphite emulsion discharge channel for the graphite emulsion to flow out is provided at the bottom of the coating tank.

[0013] As a further improvement of the utility model, the bottom of the coating tank is provided with an inclined surface inclined toward the graphite emulsion discharge channel.

[0014] As a further improvement of the present invention, a concave guide opening is provided on the side wall of the coating groove along the entry and exit position of the tungsten wire.

[0015] As a further improvement of the utility model, the coating pipeline is provided with an upper end cover, and opening the upper end cover facilitates cleaning of residual graphite emulsion in the coating pipeline.

[0016] As a further improvement of the utility model, the graphite emulsion flowing out of the graphite emulsion discharge channel enters the graphite emulsion container and is then discharged into the graphite emulsion delivery channel again through the fluid delivery device.

[0017] Beneficial effects:

[0018] The coating device of the utility model realizes stable and uniform transportation of graphite emulsion by optimizing the design of the graphite emulsion transportation channel. The graphite emulsion transportation channel passes through the lower part of the coating tank, reducing the influence of the external environment on the graphite emulsion and ensuring its stability and quality during the transportation process. This design enables the tungsten wire to form a uniform and dense lubricating layer when passing through the coating pipeline, thereby improving the cutting performance and stability of the diamond cutting wire.

[0019] Secondly, the device can adjust the coating thickness on the tungsten wire surface by controlling the flow of graphite emulsion. The control valve in the coating pipeline can adjust the flow of graphite emulsion according to actual needs to ensure the uniformity and consistency of coating thickness. This not only improves the performance stability of diamond cutting wire, but also reduces performance fluctuations and waste caused by uneven coating.

[0020] In addition, the device is also equipped with a mechanism for recycling and processing excess graphite emulsion. The graphite emulsion container connected below the coating tank can effectively collect and reflux excess graphite emulsion, reducing the waste of graphite emulsion and environmental pollution. At the same time, the recycled graphite emulsion is re-transported to the coating pipeline through the fluid conveying device, realizing the recycling of resources and reducing production costs.

[0021] The coating device of the utility model also has the advantages of simple structure, convenient operation and low maintenance cost. It has reasonable design and compact layout, which is convenient for installation and use in actual production. At the same time, the maintenance cost of the device is relatively low, which reduces the operating cost of the enterprise.

[0022] In summary, the tungsten wire surface lubricating layer coating device involved in the coating device of the utility model has shown significant beneficial effects in improving the performance of diamond cutting wire, optimizing the coating process, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a tungsten wire surface lubricating layer coating device of the utility model;

[0024] Figure 2 It is a schematic diagram of the back side of the utility model;

[0025] Explanation of the markings in the figure: 10, coating groove; 11, guide port; 20, coating pipeline; 21, upper end cover; 30, guide wheel; 31, rotating shaft; 40, graphite emulsion conveying channel; 41, control valve; 50, graphite emulsion discharge channel. DETAILED DESCRIPTION

[0026] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0027] Implementation example:

[0028] like Figure 1-2 A tungsten wire surface lubricating layer coating device is shown. Under the guidance of a wire-releasing device (not shown in the figure), the tungsten wire enters the coating device from the upper side of a coating tank 10, passes through a coating pipe 20, is coated with graphite emulsion on the surface, and then passes through a wire wheel 30 from the other side to enter the next process flow.

[0029] like Figure 2As shown, the coating tank 10 is a hollow box with an upper opening, made of 304 stainless steel plate, and the box size is 150mm×120mm×90mm. Two through circular holes with a diameter of 35mm are left at the bottom of the box, respectively for the graphite emulsion delivery channel 40 and the graphite emulsion discharge channel 50 to pass through. The upper end of the graphite emulsion delivery channel 40 is connected to the coating pipeline 20, and the two are connected in a T-shape. The graphite emulsion delivery channel 40 delivers the graphite emulsion to the coating pipeline 20, and the tungsten wire is coated with the graphite layer when passing through the coating pipeline 20. The graphite emulsion discharge channel 50 guides the graphite emulsion flowing out of the coating pipeline 20 into the coating tank 10 downward to the graphite emulsion container. The lower end of the graphite emulsion delivery channel 40 is connected to a fluid delivery device. In this embodiment, the fluid delivery device is a liquid pump. The liquid pump delivers the graphite emulsion from the graphite emulsion container to the coating pipeline 20, forming a recycling use of the graphite emulsion.

[0030] A guide wheel 300 is arranged above the entrance of the graphite emulsion discharge channel 50 in the coating box 10. The guide wheel 30 is fixed by a stainless steel support rod and uses the support rod as a rotation axis 31 to rotate and guide the tungsten wire. The rotation axis 31 is supported by holes on both sides of the box wall and is tightened and fixed with nuts. The coating tank 10 has concave guide ports 11 along the two sides where the tungsten wire enters and exits, so as to guide the tungsten wire to enter and exit the coating tank 10 better. A control valve 41 is arranged on the graphite emulsion delivery channel 400. In this embodiment, the control valve 41 is a spherical control valve, and the flow rate of the graphite emulsion is adjusted by rotating the handle.

[0031] An upper end cover 21 is provided on the upper end surface of the coating pipe 20 . After the coating operation is stopped, the upper end cover 21 can be opened to clean the graphite emulsion remaining in the coating pipe 20 .

[0032] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A tungsten wire surface lubricating layer coating device, characterized in that: It comprises a coating tank with an upper opening, a coating pipeline arranged above the coating tank for the tungsten wire to pass through, a guide wheel arranged in the coating tank for guiding the tungsten wire, and a graphite emulsion conveying channel communicated with the coating pipeline; The ink emulsion conveying channel conveys the graphite emulsion into the coating pipe, the tungsten wire passes through the coating pipe to form a graphite coating on the outer surface, and the excess graphite emulsion falls into the coating tank. The tungsten wire passing through the coating pipe is guided by the wire wheel to pass out of the coating tank.

2. The tungsten wire surface lubricating layer coating device according to claim 1, characterized in that: The two ends of the rotating shaft of the wire wheel are arranged on the side walls on both sides of the coating tank. After the tungsten wire passes through the coating pipe, it is guided by the wire wheel to pass out of the coating tank.

3. The tungsten wire surface lubricating layer coating device according to claim 1, characterized in that: The graphite emulsion delivery channel passes through the bottom of the coating tank and is communicated with the coating pipeline. A control valve for controlling the flow of the graphite emulsion is arranged on the graphite emulsion delivery channel.

4. The tungsten wire surface lubricating layer coating device according to claim 3, characterized in that: The bottom of the coating tank is provided with a graphite emulsion discharge channel for the graphite emulsion to flow out.

5. The tungsten wire surface lubricating layer coating device according to claim 4, characterized in that: The bottom of the coating tank is provided with an inclined surface inclined toward the graphite emulsion discharge channel.

6. The tungsten wire surface lubricating layer coating device according to claim 1, characterized in that: The side wall of the coating tank is provided with a concave guide opening along the entry and exit position of the tungsten wire.

7. The tungsten wire surface lubricating layer coating device according to claim 1, characterized in that: The coating pipeline is provided with an upper end cover, and opening the upper end cover facilitates cleaning of residual graphite emulsion in the coating pipeline.

8. The tungsten wire surface lubricating layer coating device according to claim 4, characterized in that: The graphite emulsion flowing out of the graphite emulsion discharge channel enters the graphite emulsion container, and then is re-discharged into the graphite emulsion delivery channel through the fluid delivery device.

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