A graphite emulsion coating unit for use in a roller wire drawing machine

Abstract

This utility model relates to the field of wire drawing machine technology, and in particular to a graphite emulsion coating unit applied to a tower wheel wire drawing machine. It includes a base for fixing, a wire coating unit fixedly connected to the base, and a circulating pump unit connected to the wire coating unit. The wire coating unit includes a wire guide and a recovery trough fixedly installed on the base, and a flip cover rotatably connected to the base. The wire guide is horizontally arranged, and the flip cover closes onto the wire guide. The recovery trough covers the flip cover and the wire guide directly below. Multiple evenly distributed limiting protrusions are provided at the upper end of the wire guide, forming a wire guide opening between two adjacent limiting protrusions. By setting up the graphite emulsion coating unit, the precise correspondence between the nozzle and the wire guide opening solves the problem of uneven graphite emulsion distribution in traditional overflow methods. Directional spraying from the nozzle ensures that the metal wire at each wire guide opening is fully covered by graphite emulsion, avoiding contact blind spots.

Description

Technical Field

[0001] This utility model relates to the field of wire drawing machine technology, and in particular to a graphite emulsion coating unit applied to a tower wheel wire drawing machine. Background Technology

[0002] Currently, for the wire drawing of refractory metals such as tungsten, tantalum, molybdenum, niobium, hafnium, chromium, vanadium, zirconium, and titanium, a tower wheel type wire drawing machine is commonly used. In a tower wheel type wire drawing machine, such as the one described in application publication number CN117102260A, the wire drawing assembly is the core unit for achieving precise wire drawing. From front to back, the wire path is calibrated and the initial tension is controlled by the first guide wheel. The graphite emulsion injection unit uniformly applies a lubricating and cooling medium to reduce friction and remove heat. Then, the heating unit improves the material plasticity and optimizes the drawing conditions. Subsequently, the wire diameter is precisely reduced and shaped by the drawing die of the die unit. After shaped, the wire is tensioned by the second guide wheel and accurately guided into the drawing wheel. Under the drive of the drawing motor, a stable traction force is generated to complete the drawing process. Finally, the finished wire is guided to the take-up device by the third guide wheel. Through precise matching of tension and speed, each component forms a complete process chain of "guiding pretreatment, lubrication and heating, diameter reduction deformation, and traction winding", which is suitable for efficient processing of materials such as high-hardness metal wires, ensuring that the wire's dimensional accuracy, surface quality and mechanical properties meet the standards.

[0003] Existing graphite emulsion filling units consist of a filling tank, a collection tank, and a circulating pump connected to form a circulating graphite emulsion filling system. By setting multiple wire guide slots at the opening of the filling tank, the graphite emulsion overflows into the collection tank, allowing the metal wire to pass through the wire guide slots and contact the graphite emulsion in the filling tank. However, this structure inevitably suffers from insufficient overflow or the inability to ensure uniform overflow in each wire guide slot, resulting in the metal wire failing to contact the graphite emulsion when passing through the wire guide slots. Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] A graphite emulsion coating unit for a roller wire drawing machine includes a base for fixing, a wire coating unit fixedly connected to the base, and a circulation pump unit connected to the wire coating unit. The wire coating unit includes a wire guide and a recovery tank fixedly installed on the base, and a flip cover rotatably connected to the base. The wire guide is arranged horizontally, and the flip cover closes on the wire guide. The recovery tank covers the flip cover and the wire guide directly below. Multiple evenly distributed limiting protrusions are provided at the upper end of the wire guide, and a wire guide opening is formed between two adjacent limiting protrusions. A receiving cavity is provided inside the wire guide, and a nozzle communicating with the receiving cavity is opened at the position corresponding to each wire guide opening on the wire guide. The circulation pump unit is provided with an output end and an input end. The output end is connected to the wire guide and sealed to the receiving cavity, and the input end is connected to the recovery tank.

[0006] Preferably, the upper surface of the through-line is a flat surface, and the limiting protrusion is formed on the upper surface of the through-line, so that the upper surface of the through-line is formed into multiple long strip-shaped planes by the setting of the limiting protrusion, and the nozzle is opened at the middle position of the long strip-shaped planes.

[0007] Preferably, a channel is provided on the upper surface of the guide line, along the middle position of the limiting protrusion, and passes through all the guide lines in a normal direction.

[0008] Preferably, the edge of the flip cover is provided with a blocking edge. When the flip cover is closed, the blocking edge and the recycling trough are spaced apart in height, and the height of the flat surface is within the height distance between the blocking edge and the recycling trough.

[0009] Preferably, a fixing plate is provided at one end of the recycling tank, and the recycling tank is fixedly connected to the base through the fixing plate, and is also fixedly connected to the fixing plate through a line.

[0010] Preferably, a receiving groove is provided on the fixed plate, and a receiving space is formed between the fixed plate and the base through the receiving groove. One end of the line passes through the receiving groove along the fixed plate, and a flange portion is formed on the end of the line that is sealed and connected to the fixed plate. A connecting flow channel communicating with the receiving cavity is provided on the flange portion, and the output end of the circulating pump unit is sealed and connected to the connecting flow channel.

[0011] Preferably, a thickened plate is also installed in the receiving groove, and the fixing plate abuts against the base through the thickened plate. Fixing holes are provided on the fixing plate and the thickened plate, and the base and the fixing plate are connected by screws through the fixing holes.

[0012] Preferably, a hinge is connected between the fixed plate and the flip cover, and the flip cover is engaged with the recycling trough by the hinge.

[0013] Compared with the prior art, the beneficial effects of this utility model are: By incorporating a graphite emulsion coating unit with a precisely aligned nozzle and wire guide, the problem of uneven graphite emulsion distribution in traditional overflow methods is solved. Directional spraying from the nozzle ensures that the metal wire at each guide is fully covered by graphite emulsion, avoiding blind spots. The limiting protrusions not only guide the metal wire but also concentrating the graphite emulsion onto the wire surface during spraying by limiting the wire guide space, improving coating efficiency and uniformity. The combination of the recovery tank and the circulating pump unit enables the recycling of graphite emulsion, reducing media waste and preventing lubrication failure due to insufficient overflow. This ensures the stability of lubrication and cooling during wire drawing, thereby improving the surface quality and processing accuracy of the metal wire, reducing the risk of wire breakage caused by uneven lubrication, and enhancing the processing reliability and production efficiency of the tower wheel wire drawing machine.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the line coating unit in this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the line coating unit in this utility model; Figure 4 This is a utility model Figure 3 A schematic diagram of the structure at point A in the middle.

[0017] The reference numerals and names in the figure are as follows: Base 10, circulating pump unit 20, through line 30, limiting protrusion 31, through line port 32, receiving cavity 33, nozzle 34, channel 35, flange 36, connecting flow channel 37, recovery tank 40, fixing plate 41, receiving tank 42, thickened plate 43, fixing hole 44, flip cover 50, blocking edge 51, hinge 52. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Please see Figure 1-4 In this embodiment of the invention, a graphite emulsion coating unit for a roller wire drawing machine includes a base 10 for fixing, a wire coating unit fixedly connected to the base 10, and a circulating pump unit 20 connected to the wire coating unit. The wire coating unit includes a wire guide 30 and a recovery tank 40 fixedly installed on the base 10, and a flip cover 50 rotatably connected to the base 10. The wire guide 30 is arranged laterally, the flip cover 50 covers the wire guide 30, and the recovery tank 40 covers the flip cover 50. Below the 0 and the through line 30, multiple evenly distributed limiting protrusions 31 are provided at the upper end of the through line 30, and a through opening 32 is formed between two adjacent limiting protrusions 31; a receiving cavity 33 is provided inside the through line 30, and a nozzle 34 communicating with the receiving cavity 33 is provided at the position corresponding to each through opening 32 on the through line 30; the circulation pump unit 20 is provided with an output end and an input end, the output end is connected to the through line 30 and sealed to the receiving cavity 33, and the input end is connected to the recovery tank 40.

[0020] In the above technical solution, the circulating pump unit 20 mainly consists of a water pump, an external storage device, and connecting pipes. During operation, the output end of the circulating pump unit 20 draws graphite emulsion from the recovery tank 40 or the external storage device and delivers it to the receiving cavity 33 inside the wire guide 30 through the sealed pipes. The graphite emulsion in the receiving cavity 33 is evenly sprayed out through the nozzles 34 corresponding to each wire guide 32 position. In the closed space formed by the limiting protrusion 31 at the upper end of the wire guide 30 and the flip cover 50, the surface of the metal wire passing through the wire guide 32 is directionally sprayed. When the metal wire moves along the wire guide 32 between adjacent limiting protrusions 31, the graphite emulsion continuously sprayed from the nozzles 34 directly covers its surface, realizing the uniform application of the lubricating and cooling medium. The coated graphite emulsion falls into the recovery tank 40 below by gravity and is sucked in again by the input end of the circulating pump unit 20 for recycling, forming a closed-loop system of spraying, recovery, and circulation, ensuring that the metal wire continues to be in contact with sufficient graphite emulsion during the drawing process.

[0021] Through this design, the graphite emulsion coating unit solves the problem of uneven graphite emulsion distribution in traditional overflow methods by precisely matching the nozzle 34 with the wire passage 32. The directional spraying of the nozzle 34 ensures that the metal wire at each wire passage 32 is fully covered by graphite emulsion, avoiding contact blind spots. The limiting protrusion 31 not only positions and guides the metal wire but also limits the wire passage space, allowing the graphite emulsion to concentrate on the wire surface during spraying, improving coating efficiency and uniformity. The cooperation between the recovery tank 40 and the circulating pump unit 20 enables the recycling of graphite emulsion, reducing media waste and avoiding lubrication failure caused by insufficient overflow. This ensures the stability of lubrication and cooling effects during wire drawing, thereby improving the surface quality and processing accuracy of the metal wire, reducing the risk of wire breakage caused by uneven lubrication, and improving the processing reliability and production efficiency of the tower wheel wire drawing machine.

[0022] Please see Figure 1-3 Based on the above technical solution, it is further proposed that the upper surface of the through-line 30 is a flat surface, and the limiting protrusion 31 is formed on the upper surface of the through-line 30, so that the upper surface of the through-line 30 is formed into multiple long strip-shaped planes by the setting of the limiting protrusion 31. The nozzle 34 is opened at the middle position of the long strip-shaped plane; so that the metal line can fully contact the upper surface of the through-line 30, ensuring that the graphite emulsion flows evenly along both sides of the metal line after being sprayed out, further improving the coating uniformity. On the upper surface of the through-line 30, a channel 35 is also opened along the middle position of the limiting protrusion 31, which is normally inserted into all the through-lines 32; so that the graphite emulsion can flow fully on the through-line 30, improving the uniformity of the graphite emulsion on the multiple through-lines 32. The edge of the flip cover 50 is provided with a blocking edge 51. When the flip cover 50 is closed, the blocking edge 51 and the recycling tank 40 are spaced apart in height. The height of the flat surface is within the height gap between the blocking edge 51 and the recycling tank 40, which can create a semi-enclosed graphite emulsion flow space. This can prevent graphite emulsion from splashing everywhere and allow excess graphite emulsion to flow smoothly into the recycling tank 40 when the metal wire passes through, avoiding uneven coating caused by accumulation. This further optimizes the circulation efficiency and coating effect of graphite emulsion and enhances the practicality and reliability of the entire coating unit.

[0023] Please see Figure 2-4Based on the above technical solution, it is further proposed that a fixing plate 41 is provided at one end of the recycling tank 40, the recycling tank 40 is fixedly connected to the base 10 through the fixing plate 41, and the through line 30 is fixedly connected to the fixing plate 41. The fixed connection method of the recycling tank 40, the fixing plate 41 and the base 10 enhances the structural stability of the entire coating unit and ensures reliable operation during high-speed wire drawing. A receiving groove 42 is provided on the fixed plate 41, and a receiving space is formed between the fixed plate 41 and the base 10 through the receiving groove 42. One end of the through line 30 passes through the receiving groove 42 along the fixed plate 41, and a flange 36 is formed on the end of the through line 30 to be sealed and connected to the fixed plate 41. A connecting flow channel 37 is provided on the flange 36 to communicate with the receiving cavity 33. The output end of the circulating pump unit 20 is sealed and connected to the connecting flow channel 37. The sealing connection between the through line 30 and the fixed plate 41 and the design of the flange 36, together with the sealing connection between the connecting flow channel 37 and the output end of the circulating pump unit 20, effectively avoids graphite emulsion leakage and ensures the sealing and reliability of the circulation system. A thickened plate 43 is installed inside the receiving groove 42. The fixing plate 41 abuts against the base 10 through the thickened plate 43, and fixing holes 44 are provided on the fixing plate 41 and the thickened plate 43. The base 10 and the fixing plate 41 are connected by screws through the fixing holes 44. The setting of the receiving groove 42 and the thickened plate 43 not only provides space for the installation of the through-line 30, but also enhances the connection strength and installation flexibility through the thickened plate 43. The fixing holes 44 and the screw connection method facilitate disassembly and maintenance, and make it easy to inspect and repair components such as the through-line 30 and the circulation pipeline. A hinge 52 is connected between the fixing plate 41 and the flip cover 50. The flip cover 50 is engaged with the recycling groove 40 through the hinge 52, which facilitates the operator to quickly inspect, clean and adjust key parts such as the through-line port 32 and the nozzle 34, significantly improving the equipment maintenance efficiency.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A graphite milk coating unit applied to a capstan wire drawing machine, comprising a base (10) for fixation, an overline coating unit fixedly connected to the base (10), and a circulating pump unit (20) connected to the overline coating unit, characterized in that, The coating unit includes a coating line (30) and a recycling tank (40) fixedly installed on the base (10), and a flip cover (50) rotatably connected to the base (10). The coating line (30) is arranged horizontally, and the flip cover (50) covers the coating line (30). The recycling tank (40) covers the flip cover (50) and the coating line (30) directly below. Multiple evenly distributed limiting protrusions (31) are provided at the upper end of the coating line (30), and a coating port (32) is formed between two adjacent limiting protrusions (31). The interior of the coating line (30) is provided with a receiving cavity (33), and a nozzle (34) connected to the receiving cavity (33) is provided at the position corresponding to each coating port (32) on the coating line (30). The circulating pump unit (20) is provided with an output end and an input end. The output end is connected to the coating line (30) and sealed to the receiving cavity (33), and the input end is connected to the recycling tank (40).

2. A graphite emulsion coating unit applied to a drawbench according to claim 1, characterized in that, The upper surface of the through line (30) is flat, and the limiting protrusion (31) is formed on the upper surface of the through line (30), so that the upper surface of the through line (30) is formed into multiple long strip-shaped planes by the setting of the limiting protrusion (31), and the nozzle (34) is opened at the middle position of the long strip-shaped plane.

3. A graphite emulsion coating unit for application to a capstan wire drawing machine according to claim 2, characterized in that, On the upper surface of the overline (30), a channel (35) is provided along the middle position of the limiting protrusion (31) and passes through all overlines (32).

4. A graphite emulsion coating unit applied to a drawbench according to claim 2, characterized in that, The edge of the flip cover (50) is provided with a blocking edge (51). When the flip cover (50) is closed, the blocking edge (51) and the recycling groove (40) are spaced apart in height. The height of the flat surface is within the height distance between the blocking edge (51) and the recycling groove (40).

5. A graphite emulsion coating unit for a roller wire drawing machine according to claim 1, characterized in that, A fixing plate (41) is provided at one end of the recycling tank (40). The recycling tank (40) is fixedly connected to the base (10) through the fixing plate (41) and is fixedly connected to the fixing plate (41) through the line (30).

6. A graphite emulsion coating unit for application to a capstan wire drawing machine according to claim 5, characterized in that, A receiving groove (42) is provided on the fixed plate (41). A receiving space is formed between the fixed plate (41) and the base (10) through the receiving groove (42). One end of the through line (30) passes through the receiving groove (42) along the fixed plate (41). A flange (36) is formed on the end of the through line (30) and is sealed to the fixed plate (41). A connecting flow channel (37) is provided on the flange (36) and communicates with the receiving cavity (33). The output end of the circulating pump unit (20) is sealed to the connecting flow channel (37).

7. A graphite emulsion coating unit for application to a capstan wire drawing machine according to claim 6, characterized in that, A thickened plate (43) is also installed in the receiving groove (42). The fixing plate (41) abuts against the base (10) through the thickened plate (43). Fixing holes (44) are provided on the fixing plate (41) and the thickened plate (43). The base (10) and the fixing plate (41) are connected by screws through the fixing holes (44).

8. A graphite emulsion coating unit for application to a capstan wire drawing machine according to claim 5, characterized in that, A hinge (52) is connected between the fixed plate (41) and the flip cover (50), and the flip cover (50) is flipped and engaged with the recycling tank (40) by the hinge (52).

Images