Cable drawing oil supply cooling assembly and cable drawing device

Abstract

The application provides a cable wire drawing oil supply cooling assembly and a cable wire drawing device, and belongs to the technical field of cable production. The cable wire drawing oil supply cooling assembly comprises a wire drawing die, wherein a flow guide hole is formed in the middle of the wire drawing die, a die hole is formed in the bottom of the flow guide hole, and a plurality of oil outlet holes are formed on the inner wall of the flow guide hole; an oil supply unit comprises a first one-way valve, a second one-way valve, an oil inlet pipe and a sleeve, and a piston is movably arranged in the sleeve along the axis of the sleeve; a cooling unit comprises a mounting frame, the inside of the mounting frame is hollow, the lower part of the mounting frame is provided with an air outlet pipe on the periphery, and the top of the mounting frame is connected with an air inlet pipe; when the piston is located at the bottom of the sleeve, the air outlet pipe is opened, and when the piston moves along the axis of the sleeve, the air outlet pipe is opened and closed. The assembly can uniformly lubricate and cool the metal wire rod and the wire drawing die, realizes quantitative oil supply, and makes the force on the periphery of the metal wire rod uniform; and the wire drawing device has a high qualified rate.

Description

Technical Field

[0001] This application belongs to the field of cable manufacturing technology, and in particular relates to a cable drawing oil supply and cooling assembly and a cable drawing device. Background Technology

[0002] When producing cables, a wire drawing device is needed to draw thicker metal wires into thinner wires. Then, multiple strands of metal wires are mixed and wrapped to form the cable core.

[0003] The general working principle of a wire drawing device is as follows: the traction mechanism in the wire drawing device pulls the wire and makes it pass through multiple sets of drawing dies. Due to the ductility of metal and the compression effect of the drawing dies, the diameter of the metal wire gradually decreases, thus obtaining a metal wire of the required diameter. When the metal wire passes through the die hole, it is squeezed by the inner wall of the die hole, which causes the temperature of the metal wire and the drawing die to rise. Therefore, oil spray pipes and cooling air pipes are usually installed at the die hole of the drawing die to spray oil and vent air between the metal wire and the die hole, thereby solving the lubrication and cooling problems. In practical applications, since the oil spray pipe and cooling air pipe are often set as a single pipe, the spraying and venting will generate a thrust on one side of the metal wire, causing it to deviate to the other side. This results in uneven force between the metal wire and the inner wall of the die hole, which leads to the drawn metal wire diameter not meeting the tolerance requirements. At the same time, the amount of oil sprayed cannot be effectively controlled, resulting in waste of drawing oil. Summary of the Invention

[0004] To address the shortcomings of the prior art, this application provides a cable drawing oil supply and cooling assembly and a cable drawing device. The assembly can uniformly lubricate and cool the metal wire and the drawing die, and achieve quantitative oil supply, while ensuring uniform force on the periphery of the metal wire. The metal wire drawn by the drawing device has a high pass rate.

[0005] To achieve the above objectives, the present invention employs the following techniques: A cable drawing oil cooling assembly, comprising: The wire drawing die has a guide hole in its middle. The inner wall of the guide hole and the bottom surface are spherical surfaces that transition evenly. A die hole is opened at the bottom of the guide hole. The upper and lower ends of the die hole are flared in opposite directions. The axis of the guide hole coincides with the axis of the die hole and is perpendicular to the top surface of the wire drawing die. Multiple oil outlet holes are opened on the inner wall of the guide hole and are evenly distributed along its edge. The axis of each oil outlet hole passes through the upper end of the guide hole and intersects at a point on the axis of the guide hole. The other end of the oil outlet hole is connected to the outside of the wire drawing die. The oil supply unit includes a first check valve and a second check valve. The outlet of the first check valve is connected to an oil outlet, the inlet of the first check valve is connected to the side of the lower part of a sleeve, the other side of the lower part of the sleeve is connected to the outlet of the second check valve, the inlet of the second check valve is connected to an oil inlet pipe, the other end of the oil inlet pipe is connected to an oil tank, and a piston that moves along its axis is fitted inside the sleeve. The cooling unit includes a mounting frame coaxially positioned above the guide hole. The mounting frame is hollow inside, and the lower periphery is provided with air outlet pipes that are the same number as the oil outlet holes and are evenly distributed along the edge of the guide hole. The axis of each air outlet pipe is coplanar with the axis of the corresponding oil outlet hole. The axis of each air outlet pipe intersects at a point on the axis of the guide hole. The air outlet pipes are positioned towards the inner wall of the guide hole between the oil outlet hole and the top surface of the wire drawing die. An air inlet pipe is connected to the top of the mounting frame. When the piston is at the bottom of the sleeve, the air outlet pipe opens; when the piston moves along the sleeve axis, the air outlet pipe opens and closes.

[0006] Furthermore, a mating frame is coaxially arranged inside the mounting frame. The mating frame is movable along the axis of the mounting frame. The top and periphery of the mating frame are respectively provided with air inlets and outlets, the same number as the number of air outlet pipes. Each air inlet is connected to the corresponding air outlet. The positions of each group of interconnected air inlets and outlets are matched with the positions of the corresponding air outlet pipes. The axis of each sleeve is set parallel to the axis of the guide hole. The upper end of the piston is connected to a first guide rod that passes through the top of the sleeve. The upper end of the mating frame is connected to a second guide rod that passes through the top of the mounting frame. Both the first and second guide rods are set parallel to the axis of the guide hole and are vertically connected to a lifting plate. The lifting plate is movable along the axis of the guide hole. A wire hole is opened in the middle of the lifting plate for threading wires. When the piston is at the bottom of the sleeve, the air outlet is connected to the air outlet pipe.

[0007] Furthermore, the other end of the oil outlet has a first threaded hole connected to the outside of the wire drawing die, and the axes of each threaded hole intersect perpendicularly at a point on the axis of the guide hole; a second threaded hole penetrating the inside of the sleeve is provided on one side of the lower part of the sleeve, and a third threaded hole penetrating the inside of the sleeve is provided on the other side of the lower part of the sleeve, and a fourth threaded hole is formed at one end of the oil inlet pipe; both ends of the valve bodies of the first one-way valve and the second one-way valve have external threads, the first one-way valve is connected between the oil outlet and the sleeve through the cooperation of the external threads with the first threaded hole and the second threaded hole, and the second one-way valve is connected between the sleeve and the oil inlet pipe through the cooperation of the external threads with the third threaded hole and the fourth threaded hole.

[0008] Furthermore, the oil tank is located above the plane containing the valve bodies of the first and second check valves. The bottom of the oil tank is conical and has an oil outlet pipe coaxially arranged. The oil inlet pipe is a bend, and the oil outlet pipe is connected to the other end of the oil inlet pipe.

[0009] A cable drawing device includes a body with a wire feeding section at the top for feeding wires into the device and a wire take-up section at the bottom for pulling and collecting wires. Multiple winding wheels are arranged sequentially from top to bottom between the wire feeding section and the wire take-up section. The body also has multiple sets of the aforementioned cable drawing oil cooling assembly, which are arranged along the body from top to bottom at intervals between the winding wheels.

[0010] The beneficial effects of this invention are as follows: 1. By setting up the first one-way valve, the second one-way valve, the piston and the sleeve, and cooperating with the oil outlet, the volume formed by the piston and the bottom of the sleeve is equal to the volume of the supplied wire drawing oil, thereby controlling the oil supply. Each oil supply is quantitatively supplied according to the lubrication and cooling requirements, which can effectively avoid the waste of wire drawing oil. At the same time, since the four oil outlets are evenly arranged along the edge of the guide hole, the wire drawing oil overflows from the four oil outlets and flows evenly from the periphery of the metal wire along the inner wall of the guide hole to the metal wire, and then is carried into the inner wall of the die hole by the metal wire, thereby achieving uniform lubrication. This effectively solves the problem that the drawn metal wire does not meet the tolerance requirements due to the uneven force between the periphery of the metal wire and the inner wall of the die hole. 2. Four air outlet pipes are evenly distributed along the edge of the guide hole. The axis of the air outlet pipes is coplanar with the axis of the corresponding oil outlet hole. This allows the cold air blown out by the air outlet pipes to be blown from the periphery of the metal wire along the inner wall of the guide hole to the metal wire and the die hole, achieving uniform cooling of the metal wire and the periphery of the die hole. At the same time, the force of the cold air on the periphery of the metal wire is uniform, which can effectively solve the problem that the drawn metal wire does not meet the tolerance requirements due to the uneven force between the periphery of the metal wire and the inner wall of the die hole. 3. Through the cooperation between the lifting plate and the first guide rod and the second guide rod, the oil supply of the oil supply unit and the air cooling of the cooling unit can be controlled simultaneously, realizing the interval control of oil supply and air cooling, and improving the automation level of oil supply and cooling of the component. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of the cable drawing oil supply and cooling assembly according to an embodiment of this application.

[0012] Figure 2 This is a cross-sectional view of a component from an embodiment of this application.

[0013] Figure 3 This is a cross-sectional view of the wire drawing die according to an embodiment of this application.

[0014] Figure 4 yes Figure 2 A magnified view of part A in the middle.

[0015] Figure 5 This is a cross-sectional view of the installation frame in an embodiment of this application.

[0016] Figure 6 This is a schematic diagram of the structure of the mating frame in an embodiment of this application.

[0017] Figure 7 This is a schematic diagram of the structure of the sleeve in an embodiment of this application.

[0018] Figure 8 This is a schematic diagram of the main structure of the cable drawing device according to an embodiment of this application.

[0019] Reference numerals: 1-Drawing die, 11-Guide hole, 111-Guide groove, 12-Die hole, 121-Oil reservoir, 13-Oil outlet, 131-First threaded hole, 2-Oil supply unit, 21-First check valve, 211-Valve core, 212-Spring, 213-Valve seat, 22-Sleeve, 221-Second threaded hole, 222-Third threaded hole, 23-Second check valve, 24-Oil inlet pipe, 241- Fourth threaded hole, 25-oil tank, 251-oil outlet pipe, 26-piston, 261-first guide rod, 3-cooling unit, 31-mounting frame, 32-air outlet pipe, 33-air inlet pipe, 34-fitting frame, 341-air inlet hole, 342-air outlet hole, 343-second guide rod, 35-pressure relief valve, 4-lifting plate, 41-threading hole, 5-body, 6-threading section, 7-threading section, 8-winding reel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this invention are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1 This application provides a cable drawing oil cooling assembly, such as... Figures 1-4 As shown, it includes: wire drawing die 1, oil supply unit 2, and cooling unit 3.

[0022] The wire drawing die 1 is cubic in shape, with a flow guide hole 11 in the middle. Figure 3As shown, the inner wall and bottom surface of the guide hole 11 are uniformly transitioned spherical surfaces, meaning that any cross-sectional profile of the guide hole 11 along its axis is semi-circular. A mold hole 12 is provided at the bottom of the guide hole 11, with the upper and lower ends of the mold hole 12 forming a trumpet shape facing each other. The axis of the guide hole 11 coincides with the axis of the mold hole 12 and is perpendicular to the top surface of the wire drawing die 1. Four oil outlet holes 13 are provided on the inner wall of the guide hole 11, evenly distributed along its edge. The axis of each oil outlet hole 13 passes through the upper end of the guide hole 11. The oil outlets 13 intersect at a point on the axis of the guide hole 11, meaning each oil outlet 13 is inclined to the bottom surface of the drawing die 1, and the other end of each oil outlet 13 is connected to the outer periphery of the drawing die 1. The oil supply unit 2 includes a first check valve 21 and a second check valve 23. The first check valve 21 and the second check valve 23 can be ball valves, cone valves, or other types of check valves. The outlet of the first check valve 21 is connected to the oil outlet 13, and the inlet of the first check valve 21 is connected to the side of the lower part of the sleeve 22. The lower side of the sleeve 22 is connected to the outlet of the second one-way valve 23. The inlet of the second one-way valve 23 is connected to an oil inlet pipe 24, and the other end of the oil inlet pipe 24 is connected to an oil tank 25. A piston 26 is fitted inside the sleeve 22 and is movable along its axis. The cooling unit 3 includes a mounting frame 31 coaxially disposed above the guide hole 11. The mounting frame 31 has a square cross-section and is hollow inside. Each of the four sides of the lower part of the mounting frame 31 is provided with an air outlet pipe 32. The axis of the air outlet pipe 32 is... Each air outlet pipe 32 is coplanar with the axis of the corresponding oil outlet 13. The axis of each air outlet pipe 32 intersects at a point on the axis of the guide hole 11. The air outlet pipe 32 is set towards the inner wall of the guide hole 11 between the oil outlet 13 and the top surface of the wire drawing die 1. Two air inlet pipes 33 are connected to the top of the mounting frame 31 and are located at opposite corners of the top of the mounting frame 31. When the piston 26 is at the bottom of the sleeve 22, the air outlet pipe 32 is opened. When the piston 26 moves along the axis of the sleeve 22, the air outlet pipe 32 is closed.

[0023] When applying, such as Figure 3 As shown, the wire drawing die 1 is horizontally positioned, and the metal wire passes vertically through the wire drawing die 1. The working principle of the cable drawing oil supply and cooling assembly is as follows: Preparation stage: such as Figure 2 and Figure 4As shown, the drawing oil in the oil tank 25 flows into the oil inlet pipe 24 and fills the cavity at the inlet of the oil inlet pipe 24 and the inlet of the second one-way valve 23; the piston 26 moves a predetermined distance from the bottom of the sleeve 22 along its axis to the top of the sleeve 22, the air outlet pipe 32 is closed, and when the piston moves, the pressure inside the sleeve 22 decreases, generating a pressure difference with the oil outlet 13 and the oil inlet pipe 24. Under the action of the pressure difference and the spring 212, the valve core 211 of the first one-way valve 21 is pressed tightly against the valve seat 213, thereby closing the passage of the oil outlet 13. At the same time as the piston 26 moves upward, under the action of the pressure difference, the second one-way valve 23... The valve core 211 separates from the valve seat 213, and the drawing oil is drawn into the sleeve 22 from the oil inlet pipe 24; the piston 26 returns to the bottom of the sleeve 22, the pressure inside the sleeve 22 increases, the valve core 211 of the second check valve 23 presses tightly against the valve seat 213, closing the passage of the oil inlet pipe 24. At the same time, the pressure inside the sleeve 22 pushes the valve core 211 of the first check valve 21 away from the valve seat 213, and pumps the drawing oil in the sleeve 22 into the cavity and oil outlet hole 13 of the outlet of the first check valve 21. At this time, the drawing oil just fills the cavity and oil outlet hole 13 of the outlet of the first check valve 21 without overflowing.

[0024] Oil supply stage: Repeat the preparation stage process described above, only readjusting the distance the piston 26 moves towards the top of the sleeve 22 according to the required oil supply. Since the cavity at the outlet of the first one-way valve 21 and the oil outlet 13 are already filled with drawing oil, the volume formed by the piston 26 and the bottom of the sleeve 22 is equal to the volume of the supplied drawing oil, thus achieving control over the oil supply. Each oil supply is quantitatively supplied according to the lubrication and cooling requirements, effectively avoiding waste of drawing oil and saving production costs; at the same time, if Figure 3 As shown, four oil outlet holes 13 are evenly arranged along the edge of the guide hole 11. The inner wall of the upper end of the die hole 12 and the outer wall of the metal wire form an oil storage groove 121. At the same time, the drawing oil overflows from the four oil outlet holes 13 and flows evenly from the periphery of the metal wire along the inner wall of the guide hole 11 to the metal wire and the oil storage groove 121. Then, it is carried by the metal wire into the inner wall of the die hole 12, so that the periphery of the metal wire and the inner wall of the die hole 12 act evenly and are evenly lubricated. This changes the oil supply method of spraying one side of the metal wire with an oil spray pipe and effectively solves the problem that the drawn metal wire does not meet the tolerance requirements due to the uneven force between the periphery of the metal wire and the inner wall of the die hole.

[0025] Cooling phase: such as Figure 1 , Figure 2 , Figure 4As shown, the air inlet pipe 33 continuously fills the mounting frame 31 with cold air. When the oil supply unit 2 does not supply oil, that is, when the piston 22 is at the bottom of the sleeve 26, the air outlet pipe 32 opens, and the cold air is blown into the guide hole 11 by the air outlet pipe 32 for cooling. Since the four air outlet pipes 32 are evenly distributed along the edge of the guide hole 11, the axis of the air outlet pipes 32 is coplanar with the axis of the corresponding oil outlet hole 13, and each air outlet pipe 32 is directed towards the inner wall of the guide hole 11 between the oil outlet hole 13 and the top surface of the wire drawing die 1, so that the cold air blown out by the air outlet pipes 32 blows from the periphery of the metal wire along the inner wall of the guide hole 11 to the metal wire and the die hole 12, so as to achieve uniform cooling of the metal wire and the periphery of the die hole 12. At the same time, the force of the cold air on the periphery of the metal wire is uniform, which changes the cooling method of unilateral blowing and can effectively solve the problem that the drawn metal wire does not meet the tolerance requirements due to the uneven force between the periphery of the metal wire and the inner wall of the die hole. When the oil supply unit 2 is not supplying oil, the cold air discharged from the air outlet 32 ​​may enter the oil outlet 13, carrying out some of the temporarily stored drawing oil in the oil outlet 13, resulting in a reduction in the temporarily stored drawing oil in the oil outlet 13. This not only causes excessive oil supply and waste of drawing oil, but also makes the amount of drawing oil supplied by the oil supply unit 2 inconsistent each time, that is, it cannot achieve quantitative control of drawing oil. However, the axis of each oil outlet 13 passes through the upper end of the guide hole 11 and intersects at a point on the axis of the guide hole 11. That is, each oil outlet 13 is inclined to the bottom surface of the drawing die 1, so that the airflow of cold air only passes over the oil outlet 13 and does not carry out the drawing oil in the oil outlet 13. This effectively solves the above problems of excessive oil supply and inability to achieve quantitative control of drawing oil caused by some airflow heading towards the oil outlet 13 and carrying out drawing oil. When oil supply unit 2 supplies oil, that is, when piston 22 moves upward from the bottom of sleeve 26, air outlet pipe 32 is closed until piston 22 returns to the bottom of sleeve 26, at which point the required drawing oil overflows completely from oil outlet hole 13, and air outlet pipe 32 reopens. This intermittent oil supply and cooling effectively solves the problem of uneven oil discharge from oil outlet hole 13 due to the large airflow in air outlet pipe 32 during oil supply; simultaneously, if... Figure 2 As shown, since the air outlet pipes 32 are all oriented towards the inner wall of the guide hole 11 between the oil outlet hole 13 and the top surface of the drawing die 1, the air outlet pipes 32 blow cold air from around the metal wire along the inner wall of the guide hole 11 to the metal wire and the die hole 12. In this way, the cold air is used to quickly blow the drawing oil overflowing from the oil outlet hole 13 into the oil storage tank 121 to continue lubricating the metal wire. This can effectively avoid the problem of untimely lubrication caused by slow flow of drawing oil, thereby ensuring the lubrication effect of the metal wire and improving the service life of the drawing die 1.

[0026] As a preferred structure, such as Figure 1 and Figure 3As shown, the inner wall of the guide hole 11 is uniformly provided with guide grooves 111 along its edge. The guide grooves 111 can further guide the drawing oil overflowing from the oil outlet 13, which is conducive to the uniform flow of the drawing oil.

[0027] Example 2 As a further implementation of the above embodiment 1, such as Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, a mating frame 34 is coaxially arranged inside the mounting frame 31. The mating frame 34 is movable along the axis of the mounting frame 31. Four air inlets 341 and four air outlets 342 are respectively opened on the top and periphery of the mating frame 34. Each air inlet 341 communicates with its corresponding air outlet 342. Each set of interconnected air inlets 341 and air outlets 342 is located around the periphery of the mating frame 34, and the positions of each set of interconnected air inlets 341 and air outlets 342 match the positions of their corresponding air outlet pipes 32. The axis of each sleeve 22 is parallel to the guide hole 11. The piston 26 is connected to a first guide rod 261 that passes through the top of the sleeve 22. The upper end of the mating frame 34 is connected to a second guide rod 343 that passes through the top of the mounting frame 31. The first guide rod 261 and the second guide rod 343 are both parallel to the axis of the guide hole 11 and perpendicularly connected to a lifting plate 4. The lifting plate 4 is movable along the axis of the guide hole 11. A wire hole 41 is opened in the middle of the lifting plate 4 for threading wires. When the piston 26 is at the bottom of the sleeve 22, the air outlet 342 is connected to the air outlet pipe 32.

[0028] During application, when the piston 26 is at the bottom of the sleeve 22, the air outlet 342 is connected to the air outlet pipe 32, and then the air outlet pipe 32 is connected to the cavity inside the mounting frame 31 through the air inlet 341. Since the outer side of the mating frame 34 is tightly fitted to the inner wall of the cavity of the mounting frame 31, the cold air in the cavity of the mounting frame 31 can only enter from the air inlet 341 and then be blown out from the air outlet pipe 32 to achieve continuous air blowing cooling. During oil supply, the lifting plate 4 rises along the axis of the guide hole 11 and simultaneously drives the piston 26 and the mating frame 24 upward through the first guide rod 261 and the second guide rod 343. As the sleeve 22 moves, the drawing oil enters the sleeve 22, the air outlet 342 separates from the air outlet pipe 32, and the inner wall of the cavity of the mounting frame 31 blocks the air outlet 342, thus stopping the airflow from the air outlet pipe 32; the lifting plate 4 descends along the axis of the guide hole 11, the mating frame 34 and the piston 26 descend, and the piston 26 discharges the drawing oil in the sleeve 22 into the oil outlet 13. When the piston 26 descends to the bottom of the sleeve 22, the drawing oil completely overflows from the oil outlet 13, completing the oil supply. At the same time, the air outlet 342 on the mating frame 34 connects with the air outlet pipe 32, and cold air continues to blow out from the air outlet pipe 32. Accordingly, linear mechanisms such as linear cylinders and linear motors can be used to drive the lifting plate 4 to rise and fall. By utilizing the lifting plate 4 and cooperating with the first guide rod 261 and the second guide rod 343, the oil supply unit 2 and the air cooling unit 2 can be controlled simultaneously, realizing the intermittent operation of oil supply and air cooling, optimizing the structure of the component, and improving the automation level of the component's oil supply and cooling.

[0029] As a preferred structure, such as Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, there is a pair of first guide rods 261 connected to the upper end of piston 26, and a pair of second guide rods 343 located on both sides of the axis of guide hole 11. The distance between the two second guide rods 343 and the axis of guide hole 11 is equal, which makes it easier for the lifting plate 4 to pull piston 26 and mating frame 34 through the first guide rods 261 and the second guide rods 343, avoid stroke interference, and improve the reliability of the operation of the component.

[0030] As a preferred structure, such as Figure 1 and Figure 6 As shown, a pressure relief valve 35 is provided on the outside of the mounting frame 31. When the inner wall of the cavity of the mounting frame 31 blocks the air outlet 342, the air inlet pipe 33 continuously supplies air into the cavity of the mounting frame 31, causing the air pressure in the cavity to increase. The pressure relief valve 35 can control the air pressure in the cavity of the mounting frame 31, which can effectively avoid the problem of deformation of the mounting frame 31 due to long-term exposure to large air pressure, and improve the service life of the mounting frame 31.

[0031] Example 3 As a further implementation of the above embodiment 2, such as Figure 4 and Figure 7 As shown, the other end of the oil outlet 13 is formed with a first threaded hole 131 that connects to the outside of the wire drawing die 1. The axes of each threaded hole 131 are perpendicularly intersecting at a point on the axis of the guide hole 11. The lower side of the sleeve 22 is provided with a second threaded hole 221 that penetrates the inside of the sleeve 22, and the other side of the lower part of the sleeve 22 is provided with a third threaded hole 222 that penetrates the inside of the sleeve 22. One end of the oil inlet pipe 24 is formed with a fourth threaded hole 241. Both ends of the valve bodies of the first one-way valve 21 and the second one-way valve 23 are formed with external threads. The first one-way valve 21 is connected between the oil outlet 13 and the sleeve 26 through the cooperation of the external thread with the first threaded hole 131 and the second threaded hole 221. The second one-way valve 23 is connected between the sleeve 26 and the oil inlet pipe 24 through the cooperation of the external thread with the third threaded hole 222 and the fourth threaded hole 241. The above configuration allows for the detachable installation of the first check valve 21, sleeve 22, second check valve 23, and oil inlet pipe 24, facilitating their maintenance and replacement and providing convenience for the assembly and disassembly of the components.

[0032] As a preferred structure, such as Figure 2 and Figure 4 As shown, the axis of the valve body of each first check valve 21 coincides with and intersects perpendicularly with the axis of the corresponding second check valve 23 at a point on the axis of the guide hole 11. The oil tank 25 is located above the plane containing the axes of the valve bodies of each first check valve 21 and second check valve 23. The bottom of the oil tank 25 is conical and has an oil outlet pipe 251 coaxially arranged. The oil inlet pipe 251 is a bend, and the oil outlet pipe 251 is connected to the other end of the oil inlet pipe 24. Through the above arrangement, the oil passage in the first check valve 21 and the oil passage in the second check valve 23 are in a horizontal straight line. At the same time, the oil inlet pipe 251 is a bend, which can send the drawing oil into the inlet of the second check valve 23. This facilitates the flow of drawing oil in the first check valve 21, the second check valve 23, the sleeve 22, and the oil inlet pipe 24, reduces the resistance to oil flow, and thus further improves the reliability of component operation.

[0033] Example 4 This application provides a cable drawing device, such as... Figure 8 As shown, it includes: body 5, wire feeding section 6, wire taking section 7, and winding reel 8.

[0034] The machine body 5 is vertically arranged. The wire feeding section 6 is located at the top of the machine body 5, used to feed the metal wire into the cable drawing device. The wire take-up section 7 is located at the bottom of the machine body 5, directly below the wire feeding section 6, used to pull and collect the metal wire. Two winding wheels 8 are arranged sequentially from top to bottom between the wire feeding section 6 and the wire take-up section 7. The winding wheels 8 rotate around their own axis and are used to wind the metal wire. The machine body 5 also has three sets of cable drawing oil supply and cooling components, any one of those in embodiments 1-3, arranged along the machine body 5 from top to bottom, spaced apart from the winding wheels 8. Under the action of the cable drawing oil supply and cooling components, the cable drawing device achieves a high yield rate for the drawn metal wire.

[0035] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A cable drawing oil supply and cooling assembly, characterized in that, The components include: The wire drawing die (1) has a guide hole (11) in its middle. The inner wall of the guide hole (11) and the bottom surface are spherical surfaces that are uniformly transitioned. The bottom of the guide hole (11) has a mold hole (12). The upper end and the lower end of the mold hole (12) are flared in opposite directions. The axis of the guide hole (11) coincides with the axis of the mold hole (12) and is perpendicular to the top surface of the wire drawing die (1). Multiple oil outlet holes (13) are evenly distributed along their edges on the inner wall of the guide hole (11). The axis of each oil outlet hole (13) passes through the upper end of the guide hole (11) and intersects at a point on the axis of the guide hole (11). The other end of the oil outlet hole (13) is connected to the outside of the wire drawing die (1). The oil supply unit (2) includes a first check valve (21) and a second check valve (23). The outlet of the first check valve (21) is connected to the oil outlet (13). The inlet of the first check valve (21) is connected to the side of the lower part of a sleeve (22). The other side of the lower part of the sleeve (22) is connected to the outlet of the second check valve (23). The inlet of the second check valve (23) is connected to an oil inlet pipe (24). The other end of the oil inlet pipe (24) is connected to an oil tank (25). A piston (26) is fitted inside the sleeve (22) and moves along its axis. The cooling unit (3) includes a mounting frame (31) coaxially disposed above the guide hole (11). The mounting frame (31) is hollow inside. The lower periphery is provided with air outlet pipes (32) that are the same number as the oil outlet holes (13) and are evenly distributed along the edge of the guide hole (11). The axis of the air outlet pipes (32) is coplanar with the axis of the corresponding oil outlet hole (13). The axis of each air outlet pipe (32) intersects at a point on the axis of the guide hole (11). The air outlet pipes (32) are disposed towards the inner wall of the guide hole (11) between the oil outlet hole (13) and the top surface of the wire drawing die (1). The top of the mounting frame (31) is connected to an air inlet pipe (33). When the piston (26) is at the bottom of the sleeve (22), the air outlet pipe (32) is opened, and when the piston (26) moves along the axis of the sleeve (22), the air outlet pipe (32) is closed.

2. The cable drawing oil cooling assembly according to claim 1, characterized in that, The mounting frame (31) is coaxially provided with a mating frame (34). The mating frame (34) is movable along the axis of the mounting frame (31). The top and sides of the mating frame (34) are provided with air inlets (341) and air outlets (342) in the same number as the air outlet pipes (32). Each air inlet (341) is connected to the corresponding air outlet (342). The positions of each group of interconnected air inlets (341) and air outlets (342) are matched with the positions of the corresponding air outlet pipes (32). The axis of each sleeve (22) is set parallel to the axis of the guide hole (11). The upper end of the piston (26) is connected to a through-hole. A first guide rod (261) is provided at the top of the sleeve (22), and a second guide rod (343) is connected to the upper end of the mating frame (34) and is provided at the top of the mounting frame (31). The first guide rod (261) and the second guide rod (343) are both parallel to the axis of the guide hole (11) and vertically connected to a lifting plate (4). The lifting plate (4) is movable along the axis of the guide hole (11). A wire hole (41) is provided in the middle of the lifting plate (4) for threading wires. When the piston (26) is located at the bottom of the sleeve (22), the air outlet (342) is connected to the air outlet pipe (32).

3. The cable drawing oil cooling assembly according to claim 2, characterized in that, The piston (26) has a pair of first guide rods (261) connected to its upper end, and a pair of second guide rods (343) located on both sides of the axis of the guide hole (11). The distance between the two second guide rods (343) and the axis of the guide hole (11) is equal.

4. The cable drawing oil cooling assembly according to claim 2, characterized in that, A pressure relief valve (35) is provided on the outside of the mounting frame (31).

5. The cable drawing oil cooling assembly according to claim 1, characterized in that, The other end of the oil outlet (13) is formed with a first threaded hole (131) connected to the outside of the wire drawing die (1). The axes of each threaded hole (131) intersect perpendicularly at a point on the axis of the guide hole (11). A second threaded hole (221) penetrating the inside of the sleeve (22) is provided on one side of the lower part of the sleeve (22), and a third threaded hole (222) penetrating the inside of the sleeve (22) is provided on the other side of the lower part of the sleeve (22). A fourth thread is formed at one end of the oil inlet pipe (24). Hole (241); Both ends of the valve bodies of the first check valve (21) and the second check valve (23) are formed with external threads. The first check valve (21) is connected between the oil outlet (13) and the sleeve (22) through the cooperation of the external thread with the first threaded hole (131) and the second threaded hole (221). The second check valve (23) is connected between the sleeve (22) and the oil inlet pipe (24) through the cooperation of the external thread with the third threaded hole (222) and the fourth threaded hole (241).

6. The cable drawing oil cooling assembly according to claim 5, characterized in that, The axis of each first check valve (21) body coincides with and intersects perpendicularly with the axis of the corresponding second check valve (23) body at a point on the axis of the guide hole (11).

7. The cable drawing oil cooling assembly according to claim 5, characterized in that, The oil tank (25) is located above the plane of the valve body axis of each of the first check valve (21) and the second check valve (23). The bottom of the oil tank (25) is conical and has an oil outlet pipe (251) on the same axis. The oil inlet pipe (24) is a bend pipe. The oil outlet pipe (251) is connected to the other end of the oil inlet pipe (24).

8. The cable drawing oil cooling assembly according to claim 1, characterized in that, The inner wall of the guide hole (11) is uniformly provided with guide grooves (111) along its edge.

9. A cable drawing device, comprising a body (5), an upper part of which is provided with a wire feeding section (6) for feeding wire into the cable drawing device, and a lower part of the body (5) provided with a wire taking section (7) for pulling and collecting the wire, wherein a plurality of winding wheels (8) are arranged sequentially from top to bottom between the wire feeding section (6) and the wire taking section (7), characterized in that, The machine body (5) is provided with multiple sets of cable drawing oil cooling components as described in any one of claims 1 to 8, and the components are arranged along the machine body (5) from top to bottom at intervals of winding wheels (8).

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