Nano-coating wire-drawing die

Abstract

The utility model discloses a nano-coating wire-drawing die, which relates to the technical field of dies, and comprises a die sleeve, a die cover and a die core, the die sleeve is internally provided with the die core, a wire-drawing hole is arranged between the die cores, the wire-drawing hole penetrates through the front and the back of the die core, and the hole wall of the wire-drawing hole is provided with a nano-coating. A plurality of graphite columns are arranged on the hole wall of the wire drawing hole in an embedded mode, the die sleeve comprises a first half die sleeve and a second half die sleeve, groove bodies are symmetrically formed in the first half die sleeve and the second half die sleeve, connecting holes are formed in the groove bodies, long screws are inserted into the connecting holes, nuts are installed at one ends of the long screws, and the other ends of the long screws are inserted into the connecting holes. According to the utility model, the die cover and the die sleeve consisting of the first half die sleeve and the second half die sleeve are arranged, so that the die core can be clamped and fixed left and right as well as up and down, the die core is convenient to disassemble while being mounted more firmly, the die core is convenient to replace when being damaged or maintained, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a nano-coated wire drawing mold. Background Technology

[0002] A wire drawing die is a mold used to draw metal wire. Its core is a hole with a specific shape, such as round, square, or octagonal. During the process of drawing metal into wire, the die compresses the metal's cross-sectional area to achieve the desired shape and size. Wire drawing dies are widely used in electronics, radar, television, and other fields. Common types include steel wire dies.

[0003] Wire drawing dies typically consist of a die core and a die sleeve. However, the die core and die sleeve of existing wire drawing dies are usually installed together by an interference fit, which is inconvenient to disassemble. After long-term use, the die core of the wire drawing die is prone to wear, cracks, breakage and other problems, and can only be replaced as a whole when it becomes unusable. This makes the use cost of wire drawing dies high. Utility Model Content

[0004] The purpose of this invention is to provide a nano-coated wire drawing die to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A nano-coated wire drawing die includes a die sleeve, a die cover, and a die core. The die core is installed inside the die sleeve, and wire drawing holes are formed between the die cores. The wire drawing holes extend through the front and back of the die cores. The walls of the wire drawing holes are coated with a nano-coating, and a plurality of graphite pillars are embedded in the walls of the wire drawing holes. The die sleeve includes a first half-die sleeve and a second half-die sleeve. The first half-die sleeve and the second half-die sleeve have symmetrically formed grooves. A connecting hole is formed in the groove, and a long screw is inserted into the connecting hole. A nut is installed at one end of the long screw. A threaded ring is installed on the die sleeve, and the die cover is threadedly connected to the threaded ring.

[0007] As a further embodiment of this utility model: the wire drawing hole includes an inlet, a compression section, a sizing section and an outlet, which are arranged sequentially from front to back.

[0008] As a further improvement of this utility model, the bottom of the mold sleeve is provided with a wire outlet hole that matches the wire drawing hole.

[0009] As a further embodiment of this utility model: the graphite columns are arranged in a ring at equal intervals on the inner walls of the inlet and compression sections, and the outer end face of the graphite columns is on the same horizontal plane as the surface of the nano-coating.

[0010] As a further improvement of this utility model, the mold cover is provided with a wire inlet hole that matches the wire drawing hole.

[0011] As a further improvement of this utility model, two grooves are symmetrically opened on the first half-mold and the second half-mold.

[0012] As a further embodiment of this utility model: the upper port of the wire drawing hole is equal in size to the lower port of the wire inlet hole, and the lower port of the wire drawing hole is equal in size to the upper port of the wire outlet hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting a mold cover and a mold sleeve composed of a first half mold sleeve and a second half mold sleeve, can achieve left and right clamping and fixing as well as up and down clamping and fixing of the mold core, making the mold core installation more secure and also facilitating the disassembly of the mold core, making it easier to replace when the mold core is damaged or repaired, and reducing the cost of use.

[0015] 2. This utility model sets a nano-coating on the wire drawing hole of the mold core. The nano-coating can reduce the friction coefficient of the mold surface, reduce the friction force of the mold during operation, thereby reducing the heat and wear generated by friction and extending the service life of the mold.

[0016] 3. This utility model embeds graphite columns in the wire drawing hole of the die core. The graphite columns have excellent self-lubricating properties. When the wire drawing die rubs against the metal wire, the graphite particles on the surface of the wire drawing hole will fall off due to friction and form a lubricating film between the metal wire and the wire drawing die, thereby replacing the traditional method of manually adding lubricating oil and reducing the intensity of manual labor. Attached Figure Description

[0017] Figure 1 This is a half-section view of a nano-coated wire drawing die.

[0018] Figure 2 This is a schematic diagram of the overall structure of a nano-coated wire drawing die.

[0019] Figure 3 This is a partial structural diagram of a nano-coated wire drawing die.

[0020] 1. Mold sleeve; 2. Mold cover; 3. Mold core; 4. Wire drawing hole; 5. Inlet; 6. Compression section; 7. Sizing section; 8. Outlet; 9. Nano-coating; 10. Graphite column; 11. First half mold sleeve; 12. Second half mold sleeve; 13. Groove; 14. Connecting hole; 15. Long screw; 16. Nut; 17. Threaded ring; 18. Wire inlet hole; 19. Wire outlet hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 2-3 In this embodiment of the present invention, a nano-coated wire drawing die includes a die sleeve 1, a die cover 2, and a die core 3. The die sleeve 1 includes a first half die sleeve 11 and a second half die sleeve 12. The first half die sleeve 11 and the second half die sleeve 12 are symmetrically provided with grooves 13. A connecting hole 14 is provided in the groove 13. A long screw 15 is inserted into the connecting hole 14. A nut 16 is installed at one end of the long screw 15. A threaded ring 17 is installed on the die sleeve 1. The die cover 2 is threadedly connected to the threaded ring 17. There are two grooves symmetrically provided on the first half die sleeve 11 and the second half die sleeve 12. The cooperation of the first half die sleeve 11 and the second half die sleeve 12 can achieve left and right clamping and fixing of the die core 3. The cooperation of the die sleeve 1 and the die cover 2 can achieve up and down clamping and fixing of the die core 3. This makes the die core 3 more firmly installed and also facilitates the disassembly of the die core 3. It is convenient to replace the die core 3 when it is damaged or repaired, thus reducing the cost of use.

[0023] Please see Figure 1 The mold sleeve 1 is equipped with a mold core 3, and a wire drawing hole 4 is opened between the mold cores 3. The wire drawing hole 4 passes through the front and back of the mold core 3. The wall of the wire drawing hole 4 is provided with a nano-coating 9. The wire drawing hole 4 includes an inlet 5, a compression 6, a sizing 7, and an outlet 8, which are arranged sequentially from front to back. The bottom of the mold sleeve 1 is provided with a wire outlet hole 19 that matches the wire drawing hole 4. The mold cover 2 is provided with a wire inlet hole 18 that matches the wire drawing hole 4. The upper port of the wire drawing hole 4 is equal in size to the lower port of the wire inlet hole 18, and the lower port of the wire drawing hole 4 is equal in size to the upper port of the wire outlet hole 19. The nano-coating 9 can reduce the friction coefficient of the mold surface, reduce the friction force of the mold during operation, thereby reducing the heat and wear generated by friction and extending the service life of the mold.

[0024] Please see Figure 1 The drawing hole 4 has several graphite pillars 10 embedded in its wall. The graphite pillars 10 are arranged in a ring at equal intervals on the inner wall of the inlet 5 and the compression section 6. The outer end face of the graphite pillar 10 is on the same horizontal plane as the surface of the nano-coating 9. The graphite pillars 10 have excellent self-lubricating properties. When the drawing die rubs against the metal wire, the graphite particles on the surface of the drawing hole 4 will fall off due to friction and form a lubricating film between the metal wire and the drawing die, thereby replacing the traditional method of manually adding lubricating oil and reducing the intensity of manual labor.

[0025] The working principle of this utility model is as follows:

[0026] When the metal wire passes through the drawing hole 4, the nano-coating 9 and graphite pillars 10 set on the drawing hole 4 can reduce the friction coefficient of the mold surface, reduce the friction force of the mold during operation, thereby reducing the heat and wear generated by friction and extending the service life of the mold. When the mold core 3 is worn out or cracked or broken after long-term use and cannot be used, first unscrew the mold cover 2 from the mold sleeve 1, then remove the nut 16 connected to the long screw 15 and take out the long screw 15, and the mold core 3 can be taken out for replacement, thus eliminating the need for overall replacement and saving costs.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A nano-coated wire drawing die comprising a die jacket (1), a die cover (2) and a die core (3), characterized in that: The die sleeve (1) is provided with a die core (3), the die core (3) is provided with a wire drawing hole (4), the wire drawing hole (4) penetrates the front and back of the die core (3), the hole wall of the wire drawing hole (4) is provided with a nano plating layer (9), the hole wall of the wire drawing hole (4) is embedded with a plurality of graphite columns (10), the die sleeve (1) comprises a first half die sleeve (11) and a second half die sleeve (12), the first half die sleeve (11) and the second half die sleeve (12) are symmetrically provided with a groove (13), the groove (13) is provided with a connecting hole (14), the connecting hole (14) is inserted with a long screw (15), one end of the long screw (15) is provided with a nut (16), the die sleeve (1) is provided with a threaded ring (17), and the threaded ring (17) is threadedly connected with a die cover (2).

2. The nano-coated wire drawing die according to claim 1, characterized in that: The wire drawing hole (4) comprises an inlet part (5), a compression part (6), a sizing part (7) and an outlet part (8), and the inlet part (5), the compression part (6), the sizing part (7) and the outlet part (8) are sequentially arranged from front to back.

3. The nano-coated wire drawing die according to claim 1, wherein: The bottom of the die sleeve (1) is provided with a wire outlet hole (19) matched with the wire drawing hole (4).

4. The nano-coated wire drawing die according to claim 1, wherein: The graphite columns (10) are annularly and equidistantly arranged on the inner walls of the inlet part (5) and the compression part (6), and the outer end surface of the graphite column (10) is on the same horizontal plane as the surface of the nano plating layer (9).

5. The nano-coated wire drawing die according to claim 1, wherein: The die cover (2) is provided with a wire inlet hole (18) matched with the wire drawing hole (4).

6. The nano-coated wire drawing die of claim 1, wherein: The groove (13) is symmetrically provided with two on the first half die sleeve (11) and the second half die sleeve (12).

7. The nano-coated wire drawing die according to claim 1, wherein: The upper end of the wire drawing hole (4) is equal in size to the lower end of the wire inlet hole (18), and the lower end of the wire drawing hole (4) is equal in size to the upper end of the wire outlet hole (19).

Images