Wire drawing die

Abstract

The utility model is suitable for the technical field of wire-drawing dies, and provides a wire-drawing die which comprises a die body, the die body comprises an upper end face and a lower end face. The feeding port and the discharging port are formed in the middle positions of the upper end face and the lower end face, and a communicated drawing die cavity is formed by the feeding port and the discharging port; a lubricating mechanism is arranged on one side of the upper end surface adjacent to the feeding hole; the lubricating mechanism comprises a lubricating oil bin arranged beside the feeding port. The material pipe is arranged below the lubricating oil bin; an oil guide groove is formed in the upper part of the die body adjacent to the feeding hole; according to the utility model, lubricating oil is uniformly distributed and coated in the drawing die cavity, the lubricating oil is accurately coated on the surface of a wire rod through the oil guide grooves to form a layer of key lubricating film, and the layer of film not only obviously reduces the friction coefficient, reduces the energy consumption and the abrasion, but also plays roles in cooling and cleaning the wire rod; therefore, the stability of the drawing process and the quality of the wire rod are greatly improved, and wire rod breakage or surface damage caused by high temperature or impurities is effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire drawing dies, in particular to a wire drawing die. Background Art

[0002] Wire drawing dies refer to various dies for drawing metal wires, as well as dies for drawing optical fibers. Wire drawing dies have a wide range of uses, such as high-precision wires used in electronic devices, radars, televisions, instruments, and aerospace, as well as commonly used tungsten wires, molybdenum wires, stainless steel wires, wire and cable wires, and various alloy wires are all drawn with wire drawing dies. The basic types of wire drawing dies are: carbide dies and steel wire dies.

[0003] In the traditional metal wire drawing process, lubrication inside the die is a crucial link. Proper lubrication can not only reduce the friction coefficient and energy consumption, but also ensure smooth drawing of the wire and avoid surface damage and breakage. However, uneven lubrication and unstable lubricant quality are long-standing technical problems.

[0004] Uneven lubrication is often caused by uneven distribution of lubricating oil inside the mold, which cannot form an effective lubricating film, resulting in increased friction in some areas and reduced surface quality of the wire. The instability of lubricating oil quality may be due to a variety of factors, such as impurities, precipitation, oxidation, etc. These factors will reduce the performance of the lubricating oil and make it unable to meet the needs of the drawing process. These problems not only increase friction and energy consumption in the production process, resulting in reduced production efficiency, but may also cause surface damage and breakage of the wire, seriously affecting product quality. Utility Model Content

[0005] The utility model provides a wire drawing die, aiming to solve the problems in the traditional metal wire drawing process, such as uneven lubrication inside the die and unstable quality of lubricating oil, which cannot meet the requirements of the drawing process, increase friction and energy consumption in the production process, lead to reduced production efficiency, and may also cause surface damage and breakage of the wire, seriously affecting product quality.

[0006] The utility model is implemented as follows: a wire drawing die comprises a die body; the die body comprises an upper end face and a lower end face; an inlet and an outlet are arranged at the middle position of the upper end face and the lower end face, and the inlet and the outlet form a connected drawing die cavity; a lubrication mechanism is arranged on the side of the upper end face adjacent to the inlet; the lubrication mechanism comprises: an oil lubricating tank arranged beside the inlet; a material pipe is arranged below the oil lubricating tank; an oil guide groove is opened at the upper position of the die body adjacent to the inlet, and the oil guide groove is connected with the oil lubricating tank through the material pipe; the oil guide groove is connected with a side position of the drawing die cavity adjacent to the inlet.

[0007] Preferably, the lubrication mechanism also includes: a group of connecting rods symmetrically arranged on the inner wall of the oil lubricating tank; stirring blades are arranged on the opposite sides of the two connecting rods; two micro motors are arranged on the outside of the oil lubricating tank, and the output ends of the two micro motors are respectively fixedly connected to the end keys of the corresponding connecting rods.

[0008] Preferably, an annular guide groove is provided on one side of the die cavity adjacent to the feed inlet.

[0009] Preferably, the feed inlet and the discharge outlet are both arranged as conical concave surfaces.

[0010] Preferably, a diameter-changing zone and a sizing zone are provided between the feed port and the discharge port, the diameter-changing zone is distributed in a gradually decreasing radial direction, and the sizing zone is distributed in an equidistant radial direction.

[0011] Preferably, the corner surfaces of the upper end surface and the lower end surface are both rounded.

[0012] Preferably, a one-way valve is provided on the outside of the material pipe.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] First: by setting up a lubrication mechanism, the lubricating oil is evenly distributed and coated in the drawing die cavity. Under the guidance of the oil guide groove, the lubricating oil can be accurately coated on the surface of the wire to form a lubricating film. This lubricating film not only reduces the friction coefficient between the wire and the die, reduces energy consumption and wear, but also plays a role in cooling and cleaning, which effectively prevents the wire from breaking or surface damage caused by high temperature or impurities during the drawing process, and improves the quality of the wire and the stability of the drawing process.

[0015] Second, by arranging stirring blades in the oil lubrication bin, it is possible to effectively prevent the lubricating oil from settling or stratifying when it is stationary in the oil lubrication bin. By driving the stirring blades to rotate through the connecting rod, the lubricating oil always remains in a uniform state, ensuring its performance and quality. This enables the wire to obtain more uniform and effective lubrication when entering the die cavity, further improving the stability and efficiency of the drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the lower end surface structure of the utility model;

[0018] Figure 3 It is a front structural schematic diagram of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the variable diameter area and the fixed diameter area of ​​the utility model;

[0020] In the figure: 1. mold body; 2. upper end surface; 3. lower end surface; 4. inlet; 5. outlet; 601. oil lubrication bin; 602. material pipe; 603. oil guide groove; 604. connecting rod; 605. stirring blade; 606. micro motor; 7. guide groove; 8. variable diameter area; 9. fixed diameter area; 10. one-way valve. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The utility model embodiment provides a wire drawing die, such as Figure 1-4 As shown, it includes a mold body 1; the mold body 1 includes an upper end face 2 and a lower end face 3; an inlet 4 and an outlet 5 are arranged in the middle of the upper end face 2 and the lower end face 3, and the inlet 4 and the outlet 5 form a connected drawing die cavity; a lubrication mechanism is arranged on the side of the upper end face 2 adjacent to the inlet 4; the lubrication mechanism includes: an oil lubricating tank 601 arranged beside the inlet 4; a material pipe 602 is arranged below the oil lubricating tank 601; an oil guide groove 603 is opened at the upper position of the mold body 1 adjacent to the inlet 4, and the oil guide groove 603 is connected with the oil lubricating tank 601 through the material pipe 602; the oil guide groove 603 is connected to a side of the drawing die cavity adjacent to the inlet 4.

[0024] It should be noted that in the traditional metal wire drawing process, the uneven lubrication inside the die and the unstable quality of the lubricating oil cannot meet the needs of the drawing process, which increases the friction and energy consumption in the production process, resulting in a decrease in production efficiency. It may also cause surface damage and breakage of the wire, seriously affecting the quality of the product. This solution uses a carefully designed lubrication mechanism. This device realizes the uniform distribution and coating of the lubricating oil in the drawing die cavity. The lubricating oil is accurately coated on the surface of the wire through the oil guide groove 603 to form a key lubricating film. This film not only significantly reduces the friction coefficient, reduces energy consumption and wear, but also plays a role in cooling and cleaning the wire. This greatly improves the stability of the drawing process and the quality of the wire, and effectively prevents wire breakage or surface damage caused by high temperature or impurities.

[0025] Specifically, in this embodiment, this scheme mainly includes a mold body 1 and a lubrication mechanism; when the metal wire enters the die cavity from the feed port 4, it first contacts the upper position of the die cavity. An appropriate amount of lubricating oil is stored in the lubricating tank 601, which is connected with the oil guide groove 603 on the upper part of the mold body 1 through the material pipe 602. The lubricating oil flows into the die cavity through the material pipe 602 and the oil guide groove 603. Since the oil guide groove 603 is connected to a side of the die cavity adjacent to the feed port 4, the lubricating oil can be accurately coated on the surface of the wire to form a lubricating film. This lubricating film not only reduces the friction coefficient between the wire and the die, but also plays a role in cooling and cleaning, effectively preventing the wire from being broken or surface damaged due to high temperature or impurities during the drawing process.

[0026] In a further preferred embodiment of the present invention, Figure 3 As shown, the lubrication mechanism also includes: a group of connecting rods 604 symmetrically arranged on the inner wall of the oil lubricating tank 601; stirring blades 605 are arranged on the opposite sides of the two connecting rods 604; two micro motors 606 are arranged on the outside of the oil lubricating tank 601, and the output ends of the two micro motors 606 are respectively fixedly connected to the end keys of the corresponding connecting rods 604.

[0027] In this embodiment, when the lubricating oil is left standing in the oiling bin 601, part of the lubricating oil may settle to the bottom due to gravity. The micro motor 606 drives the connecting rod 604 to drive the stirring blade 605 to rotate, thereby ensuring that the lubricating oil always remains in a uniform state to avoid precipitation or stratification. When the wire enters the drawing die cavity, it can obtain more uniform and effective lubrication, thereby further improving the stability and efficiency of the drawing process.

[0028] In a further preferred embodiment of the present invention, Figure 1-3 As shown, an annular guide groove 7 is provided on one side of the die cavity adjacent to the feed port 4 .

[0029] In this embodiment, after the lubricating oil flows into the die cavity through the oil guide groove 603, the annular guide groove 7 serves as a guiding structure to help the lubricating oil be more evenly distributed around the wire.

[0030] In a further preferred embodiment of the present invention, Figure 3-4 As shown, the feed inlet 4 and the discharge outlet 5 are both arranged as conical concave surfaces.

[0031] In this embodiment, the design of the concave tapered surface facilitates the smooth entry and exit of the wire. When the wire enters the feed port 4, the concave tapered surface can guide the wire to gradually enter the die cavity, avoiding sudden impact or deviation of the wire. Similarly, when the wire exits the discharge port 5, the concave tapered surface can also ensure the smooth discharge of the wire.

[0032] In a further preferred embodiment of the present invention, Figure 4 As shown, a diameter-changing zone 8 and a sizing zone 9 are provided between the feed port 4 and the discharge port 5. The diameter-changing zone 8 is gradually reduced in radial direction, and the sizing zone 9 is equidistantly distributed in radial direction.

[0033] In this embodiment, in the variable diameter zone 8, the wire is gradually compressed and stretched by the die, and the diameter gradually decreases. Due to the effect of the lubricating oil previously applied, the friction resistance encountered by the wire during the stretching process is greatly reduced, making the stretching process smoother and more efficient. Subsequently, the wire enters the sizing zone 9. In this area, the diameter of the die remains unchanged, and the diameter of the wire gradually stabilizes. Since the previous variable diameter zone 8 has completed most of the stretching work, the sizing zone 9 mainly plays the role of fine-tuning and precise sizing to ultimately reach the desired size.

[0034] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the corner surfaces of the upper end surface 2 and the lower end surface 3 are both rounded.

[0035] In this embodiment, direct contact between the wire and the mold corner may cause surface scratches, while the rounded design can make the contact between the wire and the mold smoother, reduce the possibility of scratches, and improve the surface quality of the wire.

[0036] A one-way valve 10 is disposed on the outer side of the material pipe 602 .

[0037] In this embodiment, the one-way valve 10 is provided to facilitate accurate delivery of lubricating oil.

[0038] Working principle: When the device is used, the metal wire enters the die cavity from the feed port 4, and first contacts the upper position of the die cavity. An appropriate amount of lubricating oil is stored in the lubricating oil tank 601, which is connected to the oil guide groove 603 on the upper part of the die body 1 through the material pipe 602. The lubricating oil flows into the die cavity through the material pipe 602 and the oil guide groove 603. After the lubricating oil flows into the die cavity through the oil guide groove 603, the annular guide groove 7 serves as a guiding structure to help the lubricating oil be more evenly distributed around the wire, so as to accurately coat the surface of the wire to form a lubricating film. This lubricating film not only reduces the friction coefficient between the wire and the die, but also plays a role in cooling and cleaning, effectively preventing the wire from being broken or damaged on the surface due to high temperature or impurities during the drawing process;

[0039] When the lubricating oil is stationary in the lubricating oil tank 601, due to the effect of gravity, part of the lubricating oil may settle at the bottom. The micro motor 606 drives the connecting rod 604 to drive the stirring blade 605 to rotate, which can ensure that the lubricating oil always remains in a uniform state and avoids precipitation or stratification. When the wire enters the drawing die cavity, it can obtain more uniform and effective lubrication, thereby further improving the stability and efficiency of the drawing process;

[0040] The wire is then pulled to the diameter-changing zone 8, where it is gradually compressed and stretched by the die, and its diameter gradually decreases. Due to the effect of the lubricating oil previously applied, the frictional resistance encountered by the wire during the stretching process is greatly reduced, making the stretching process smoother and more efficient. Subsequently, the wire enters the sizing zone 9. In this area, the diameter of the die remains unchanged, and the diameter of the wire gradually stabilizes. Since the previous diameter-changing zone 8 has completed most of the stretching work, the sizing zone 9 mainly plays the role of fine-tuning and precise sizing to ultimately reach the desired size.

[0041] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0042] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0043] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0044] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A wire drawing die, characterized in that: include: Model; The mold body includes an upper end surface and a lower end surface; An inlet and an outlet are provided at the middle of the upper end surface and the lower end surface, and the inlet and the outlet form a connected die cavity; A lubrication mechanism is provided on one side of the upper end surface adjacent to the feed inlet; The lubrication mechanism comprises: An oil lubrication bin disposed beside the feed inlet; A material pipe disposed below the lubrication bin; An oil guide groove is provided at the upper portion of the mold body adjacent to the material inlet, and the oil guide groove is connected to the oil lubrication bin through a material pipe; The oil guide groove is communicated with a side position of the drawing die cavity adjacent to the feed inlet.

2. A wire drawing die according to claim 1, characterized in that: The lubrication mechanism also includes: A group of connecting rods symmetrically arranged on the inner wall of the oil lubrication bin; The two connecting rods are provided with stirring blades on opposite sides thereof; Two micro motors are arranged outside the oil lubrication bin, and the output ends of the two micro motors are respectively fixedly connected with the end keys of the corresponding connecting rods.

3. A wire drawing die according to claim 1, characterized in that: An annular guide groove is provided on one side of the drawing die cavity adjacent to the feeding port.

4. A wire drawing die as claimed in claim 3, characterized in that: The inlet and outlet are both arranged in a conical concave surface.

5. A wire drawing die as claimed in claim 4, characterized in that: A diameter-changing zone and a sizing zone are arranged between the feed port and the discharge port. The diameter-changing zone is gradually reduced in radial direction, and the sizing zone is equidistant in radial direction.

6. A wire drawing die according to claim 1, characterized in that: The corner surfaces of the upper end surface and the lower end surface are both rounded.

7. A wire drawing die according to claim 1, characterized in that: A one-way valve is arranged on the outer side of the material pipe.

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