A wire drawing device for preventing wire breakage of cold heading steel

Abstract

The application belongs to the technical field of cold upsetting steel wire drawing, and particularly relates to a wire drawing device for preventing cold upsetting steel wire from being broken, which comprises a calender assembly, a spiral steel wire is sleeved and installed on the calender assembly, the calender assembly is provided with a main frame, a middle roller is rotatably installed on the left side of the main frame, a lower pressing part is installed on the top end of the main frame and located at the right upper part of the middle roller, and the lower pressing part is provided with a hydraulic cylinder. The middle roller and the auxiliary roller are combined in an up-down mode, the steel wire is arranged in a spiral mode on the outside of the middle roller, the middle roller and the auxiliary roller are oppositely clamped in an up-down mode, a pressing force is applied to the middle roller and the auxiliary roller by the hydraulic cylinder, the steel wire can be squeezed and passed through when the middle roller rotates, automatic feeding and calendering are realized, the size of the auxiliary roller can be gradually increased, the auxiliary roller is provided with a plurality of auxiliary rollers, segmented continuous calendering is realized, and the steel wire is prevented from being broken.

Description

Technical Field

[0001] This invention relates to the field of cold heading steel wire drawing technology, and in particular to a wire drawing device for preventing cold heading steel wire from breaking. Background Technology

[0002] Cold heading steel is generally low- or medium-carbon high-quality carbon structural steel and high-quality alloy structural steel. It is used to cold-head various standard mechanical parts and fasteners. Cold heading steel has good metal plasticity and can be rolled and drawn into wire to produce steel wire.

[0003] The existing steel wire production mainly uses the drawing method. However, during the drawing process, the steel wire needs to be passed through a reducing die and stretched horizontally. However, relying solely on stretching to stretch the steel wire can easily lead to breakage due to excessive stretching force. To address this issue, we propose a wire drawing device to prevent breakage of cold heading steel wire. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a wire drawing device to prevent cold heading steel wire from breaking.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wire drawing device for preventing cold heading steel wire breakage includes a rolling assembly on which a spiral steel wire is sleeved and installed. The rolling assembly has a main frame, a middle roller is rotatably installed on the left side of the main frame, and a lower pressing part is installed at the top of the main frame at the upper right of the middle roller. The lower pressing part has a hydraulic cylinder, the top of the hydraulic cylinder is fixedly connected to the main frame, and a pressure frame is installed at the bottom of the hydraulic cylinder. A secondary roller is rotatably installed at the lower part of the pressure frame. The steel wire is pressed and stretched by the secondary roller and the middle roller.

[0007] During wire drawing, a spiral wire is laid on the outside of the middle roller. The rotation of the middle roller drives the automatic feeding of the wire. A pressing part is installed at the top of the main frame, on the upper right side of the middle roller. A hydraulic cylinder presses down on the auxiliary roller, which works in conjunction with the horizontally rotating middle roller to press down the wire, stretching it. The hydraulic cylinder is connected to the auxiliary roller through a pressing frame, ensuring that the auxiliary roller can rotate with the middle roller, achieving rolling and pressing of the wire. This ensures smooth wire movement and, compared to drawing the wire with one end fixed, it is not subjected to strong tension, effectively preventing breakage.

[0008] Preferably, the auxiliary roller is equipped with limiting flanges on both the left and right sides, and the steel wire is squeezed and pressed by the auxiliary roller and the middle roller between the two limiting flanges;

[0009] To ensure the stability of the steel wire position during the clamping and extrusion of the auxiliary roller and the main frame, limiting flanges are installed on both sides of the auxiliary roller to limit the steel wire. The limiting flanges do not contact the middle roller, which ensures that the steel wire is extruded smoothly. In addition, multiple auxiliary rollers are arranged horizontally, and the size of the auxiliary rollers can be gradually increased from left to right, so that the size of the steel wire after extrusion is gradually narrowed, allowing for segmented continuous rolling and preventing the steel wire from breaking due to excessive pressure in a single operation.

[0010] Preferably, a first guide rod is provided at the lower part of the main frame, the first guide rod is located directly below the main frame, the lower part of the steel wire is sleeved below the first guide rod, and the steel wire is not sleeved above the middle roller;

[0011] The first guide rod guides the lower part of the steel wire. The lower part of the steel wire is sleeved below the first guide rod, and the upper part of the steel wire is sleeved above the middle roller, so that the steel wire is spread out, ensuring that the spiral sequence is not disordered during rotation and ensuring uniform rolling.

[0012] Preferably, the right part of the first guide rod is arranged parallel to the main frame, and the left part of the first guide rod is raised to form an upward part, the left end of the upward part abutting against the outer wall of the lower left part of the main frame;

[0013] The right side of the first guide rod is set parallel to the main frame, which can ensure that the lower part of the steel wire is evenly stressed when it is rolled. The upward part on the left side can facilitate the smooth installation of the steel wire. As the steel wire moves to the right, the upward part can squeeze the lower part of the steel wire, so that the steel wire is stably unfolded into a single layer.

[0014] Preferably, a side pressure assembly is provided at the right rear of the main frame. The side pressure assembly includes two vertical rollers. The steel wire is clamped between the two vertical rollers from the left and right. The vertical rollers are connected by a double-headed telescopic cylinder.

[0015] The designer of the side-pressing assembly uses two vertical rollers to clamp the steel wire from the left and right, so that the flattened steel wire is subjected to pressure from the left and right and is rolled again, and the rolling pressure is provided by a double-headed telescopic cylinder.

[0016] Preferably, the side pressure assembly includes a connecting frame, a second guide rod is provided in the middle of the connecting frame, a connecting frame is slidably installed on the outer side of the second guide rod, the connecting frame is rotatably connected to the vertical roller, a support plate is installed in the middle of the connecting frame, a notch is opened in the middle of the connecting frame for the support plate to slide linearly, a support lug is provided at the end of the support plate, and the support lug is fixedly connected to the double-head telescopic cylinder;

[0017] The connecting frame, equipped with a second guide rod, can guide the connecting frame. The connecting frame has a support plate that is fixedly connected to the end of the double-headed telescopic cylinder. The connecting frame can drive the vertical roller to move horizontally in a stable manner, thereby achieving stable adjustment of the vertical roller's position.

[0018] Preferably, at least two side-pressure components are provided, and fixed frames are provided on the left and right sides of the connecting frame. The radial angle of the side-pressure component relative to the steel wire can be controlled by changing the length of the fixed frames.

[0019] There are at least two side-pressing components, which are located at the rear of the steel wire to achieve segmented rolling of the steel wire. The side-pressing components can rotate around the radial direction of the steel wire and are fixed to the main frame by a fixing bracket after rotation. The steel wire can be clamped left and right, left-upper-right-lower, and left-lower-right-upper. The clamping angle is flexible, which can make the steel wire bear the force in the center. The cross-section of the extruded steel wire is close to a circle, which is convenient for subsequent use.

[0020] Preferably, a lubrication assembly is provided at the lower part of the main frame. The lubrication assembly includes an oil hopper with an upward opening. An oil pump is provided inside the oil hopper. A delivery pipe is installed at the oil outlet of the oil pump. A lower oil supply pipe and an upper oil supply pipe are connected in series on the delivery pipe.

[0021] The lubrication system can supply lubricating oil to the sidewalls of the steel wire through the lower and upper oil supply pipes during calendering. Excess lubricating oil is stored in an oil hopper, which is placed below the steel wire to collect the remaining lubricating oil. The oil pump enables the circulation of oil supply.

[0022] Preferably, the lower oil supply pipe and the upper oil supply pipe are provided with outlets corresponding to the steel wire, and the outlets are located above the steel wire contact side pressure assembly and the rolling assembly;

[0023] The lower and upper oil supply pipes are equipped with outlets corresponding to the steel wire. Before the steel wire is rolled by the side pressing assembly and the rolling assembly, lubricating oil is supplied to the outer surface of the steel wire. Lubrication is provided for each rolling process to ensure that the rolling process is crack-proof.

[0024] Preferably, the pressing part is provided with a rotating ring below the outlet of the upper oil supply pipe, and an upper coating part is sleeved on the outside of the rotating ring. The first guide rod is rotatably provided with a lower coating part below the outlet of the lower oil supply pipe.

[0025] The rotating ring allows the upper coating section to rotate, applying lubricating oil to the outer wall of the steel wire. The lower coating section is also rotated and installed on the outside of the first guide rod, ensuring uniform application of lubricating oil. The rotation also prevents the upper and lower coating sections from sliding relative to the steel wire and causing wear.

[0026] Compared with existing technologies, the advantages of this wire drawing device for preventing cold heading steel wire breakage are:

[0027] 1. By setting up the rolling assembly, the middle roll and the auxiliary roll are combined up and down, and the steel wire is spirally laid on the outside of the middle roll. The middle roll and the auxiliary roll are clamped up and down and the hydraulic cylinder applies downward pressure. When the middle roll rotates, the steel wire is squeezed through, realizing automatic feeding and rolling. In addition, multiple auxiliary rolls are set up, and the size of the auxiliary rolls can be gradually increased to carry out segmented continuous rolling to prevent the steel wire from breaking.

[0028] 2. By setting up the side pressure component, after the rolling component rolls the steel wire up and down, the vertical roller of the side pressure component will clamp the steel wire from left to right, squeezing the flattened steel wire from left to right, improving the rolling efficiency. There are multiple sets of vertical rollers, and the angle can be adjusted around the axis of the steel wire to perform multi-angle clamping in the center, so that the steel wire is squeezed and lengthened to obtain a steel wire with a cross-section close to a circle, which is convenient for subsequent winding and use.

[0029] 3. Through the setting of the lubrication components, lubricating oil is provided to the steel wire through the oil supply pipe before the steel wire is rolled. Each segment of rolling has a corresponding oil supply pipe to ensure the lubrication effect of each rolling. A sponge is placed between the oil supply pipe and the steel wire to facilitate the even distribution of lubricating oil. The sponge can rotate to prevent excessive wear caused by sliding friction. An oil hopper is set at the bottom to collect the oil and avoid waste of lubricating oil. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the left side of the present invention;

[0031] Figure 2 This is a rear view structural diagram of the present invention;

[0032] Figure 3 This is a left view of the right-side structure of the present invention;

[0033] Figure 4 This is a cross-sectional schematic diagram of a partial structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the position of the auxiliary roller in the calendering assembly of the present invention;

[0035] Figure 6 This is a schematic diagram showing the position of the side-pressure assembly of the present invention;

[0036] Figure 7 This is an enlarged schematic diagram of the side-pressure assembly of the present invention;

[0037] Figure 8 This is a diagram showing the split relationship of the side pressure component of the present invention.

[0038] In the diagram: 1. Middle roller, 11. Main frame, 2. Side pressure assembly, 21. Vertical roller, 22. Connecting frame, 221. Support plate, 222. Support lug, 23. Connecting frame, 231. Second guide rod, 232. Fixed frame, 233. Notch, 234. Double-headed telescopic cylinder, 3. Lower pressing part, 31. Pressing frame, 32. Upper coating part, 321. Rotary ring, 33. Auxiliary roller, 331. Limiting flange, 34. Hydraulic cylinder, 341. Overhead seat, 441. First guide rod, 41. Lifting part, 42. Lower coating part, 5. Steel wire, 6. Lubrication assembly, 61. Oil pump, 611. Oil hopper, 62. Conveying pipe, 63. Lower oil supply pipe, 64. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0040] Reference Figure 1-8 This invention provides three technical solutions:

[0041] Example 1

[0042] A wire drawing device for preventing cold heading steel wire breakage includes a rolling assembly. A spiral steel wire 5 is sleeved and installed on the rolling assembly. The rolling assembly has a main frame 11. A middle roller 1 is rotatably installed on the left side of the main frame 11. A lower pressing part 3 is installed at the top of the main frame 11, located at the upper right of the middle roller 1. The lower pressing part 3 has a hydraulic cylinder 34. The top of the hydraulic cylinder 34 is fixedly connected to the main frame 11. A pressure frame 31 is installed at the bottom of the hydraulic cylinder 34. A secondary roller 33 is rotatably installed at the lower part of the pressure frame 31. The steel wire 5 is pressed and stretched between the secondary roller 33 and the middle roller 1.

[0043] Specifically, the auxiliary roller 33 is equipped with limiting flanges 331 on both the left and right sides, and the steel wire 5 is located between the two limiting flanges 331 and is squeezed by the auxiliary roller 33 and the middle roller 1.

[0044] Furthermore, a first guide rod 4 is provided at the lower part of the main frame 11. The first guide rod 4 is located directly below the main frame 11. The lower part of the steel wire 5 is sleeved below the first guide rod 4, and the steel wire 5 is not sleeved above the middle roller 1.

[0045] Furthermore, the right side of the first guide rod 4 is set parallel to the main frame 11, and the left side of the first guide rod 4 is raised to form an upward part 41, with the left end of the upward part 41 pressing against the lower left outer wall of the main frame 11.

[0046] During wire drawing, a spiral wire 5 is laid on the outside of the middle roller 1. The rotation of the middle roller 1 automatically feeds the wire 5. A pressing part 3 is installed at the top of the main frame 11, on the upper right side of the middle roller 1. A hydraulic cylinder 34 presses down on the auxiliary roller 33, working in conjunction with the horizontally rotating middle roller 1 to press down the wire 5, stretching it. The hydraulic cylinder 34 is rotatably connected to the auxiliary roller 33 via the pressing frame 31, ensuring that the auxiliary roller 33 rotates with the middle roller 1, achieving rolling compression of the wire 5 and ensuring smooth movement. Compared to drawing the wire 5 by fixing one end, this method avoids excessive tension and effectively prevents breakage. To ensure the stability of the wire 5's position during the clamping compression between the auxiliary roller 33 and the middle roller 1, limiting flanges 331 are installed on both sides of the auxiliary roller 33 to limit the wire 5's position. The auxiliary rollers 331 do not contact the middle roller 1, ensuring that the steel wire 5 is smoothly extruded. Multiple auxiliary rollers 33 are arranged horizontally, allowing their size to gradually increase from left to right, thus gradually narrowing the size of the extruded steel wire 5 for segmented continuous rolling. This prevents the steel wire from breaking due to excessive pressure in a single operation. The first guide rod 4 guides the lower part of the steel wire 5, with the lower part of the steel wire 5 fitted below the first guide rod 4 and the upper part fitted above the middle roller 1, thus spreading the steel wire 5 and ensuring the spiral sequence during rotation remains intact, guaranteeing uniform rolling. The right side of the first guide rod 4 is parallel to the main frame 11, ensuring uniform force on the lower part of the steel wire 5 during rolling. The upward-lifting part 41 on the left facilitates the smooth fitting of the steel wire 5, and as the steel wire 5 moves to the right, the upward-lifting part 41 extrudes the lower part of the steel wire 5, stably unfolding it into a single layer.

[0047] Example 2

[0048] A wire drawing device for preventing cold heading steel wire breakage includes a rolling assembly. A spiral steel wire 5 is sleeved and installed on the rolling assembly. The rolling assembly has a main frame 11. A middle roller 1 is rotatably installed on the left side of the main frame 11. A lower pressing part 3 is installed at the top of the main frame 11, located at the upper right of the middle roller 1. The lower pressing part 3 has a hydraulic cylinder 34. The top of the hydraulic cylinder 34 is fixedly connected to the main frame 11. A pressure frame 31 is installed at the bottom of the hydraulic cylinder 34. A secondary roller 33 is rotatably installed at the lower part of the pressure frame 31. The steel wire 5 is pressed and stretched between the secondary roller 33 and the middle roller 1.

[0049] Specifically, a side pressure assembly 2 is provided at the right rear of the main frame 11. The side pressure assembly 2 includes two vertical rollers 21. The steel wire 5 is clamped between the two vertical rollers 21 from left to right. The vertical rollers 21 are connected by a double-headed telescopic cylinder 24.

[0050] It is worth noting that the side pressure assembly 2 includes a connecting frame 23, a second guide rod 231 is provided in the middle of the connecting frame 23, a connecting frame 22 is slidably installed on the outside of the second guide rod 231, the connecting frame 22 is rotatably connected to the vertical roller 21, a support plate 221 is installed in the middle of the connecting frame 22, a notch 233 is opened in the middle of the connecting frame 23 for the support plate 221 to slide linearly, and a support ear 222 is provided at the end of the support plate 221, the support ear 222 is fixedly connected to the double-headed telescopic cylinder 24.

[0051] It is worth noting that there are at least two side pressure components 2, and fixed frames 232 are provided on the left and right sides of the connecting frame 23. The radial angle of the side pressure component 2 relative to the steel wire 5 can be controlled by changing the length of the fixed frame 232.

[0052] The designer of the side-pressing assembly 2 uses two vertical rollers 21 to clamp the steel wire 5 from left to right, so that the flattened steel wire 5 is subjected to pressure from left to right and is rolled again. The rolling pressure is provided by the double-headed telescopic cylinder 24. The connecting frame 23, with the second guide rod 231, can guide the connecting frame 22. The connecting frame 22 has a support plate 221, which is fixedly connected to the end of the double-headed telescopic cylinder 24. The connecting frame 22 can drive the vertical roller 21 to move horizontally stably, so as to achieve stable adjustment of the position of the vertical roller 21. At least two side-pressing assemblies 2 are provided and are located at the rear of the steel wire 5 to achieve segmented rolling of the steel wire 5. The side-pressing assembly 2 can rotate around the radial direction of the steel wire 5. After rotation, it is fixed to the main frame 11 by the fixing frame 232. It can clamp the steel wire 5 from left to right, from left to right, and from left to right. The clamping angle is flexible, so that the steel wire 5 is centered and the cross-section of the extruded steel wire 5 is close to a circle, which is convenient for subsequent use.

[0053] Example 3

[0054] A wire drawing device for preventing cold heading steel wire breakage includes a rolling assembly. A spiral steel wire 5 is sleeved and installed on the rolling assembly. The rolling assembly has a main frame 11. A middle roller 1 is rotatably installed on the left side of the main frame 11. A lower pressing part 3 is installed at the top of the main frame 11, located at the upper right of the middle roller 1. The lower pressing part 3 has a hydraulic cylinder 34. The top of the hydraulic cylinder 34 is fixedly connected to the main frame 11. A pressure frame 31 is installed at the bottom of the hydraulic cylinder 34. A secondary roller 33 is rotatably installed at the lower part of the pressure frame 31. The steel wire 5 is pressed and stretched between the secondary roller 33 and the middle roller 1.

[0055] Specifically, a side pressure assembly 2 is provided at the right rear of the main frame 11. The side pressure assembly 2 includes two vertical rollers 21. The steel wire 5 is clamped between the two vertical rollers 21 from left to right. The vertical rollers 21 are connected by a double-headed telescopic cylinder 24.

[0056] Furthermore, a lubrication assembly 6 is provided at the lower part of the main frame 11. The lubrication assembly 6 includes an oil hopper 611 with an upward opening. An oil pump 61 is provided inside the oil hopper 611. A delivery pipe 62 is installed at the oil outlet of the oil pump 61. A lower oil supply pipe 63 and an upper oil supply pipe 64 are connected in series on the delivery pipe 62.

[0057] Furthermore, the lower oil supply pipe 63 and the upper oil supply pipe 64 are provided with outlets corresponding to the steel wire 5, and the outlets are located above the position before the steel wire 5 contacts the side pressure assembly 2 and the rolling assembly.

[0058] Furthermore, a rotating ring 321 is provided below the outlet of the upper oil supply pipe 64 in the lower pressure part 3, and an upper coating part 32 is sleeved on the outside of the rotating ring 321. A lower coating part 42 is rotatably provided on the outside of the first guide rod 4 below the outlet of the lower oil supply pipe 63.

[0059] The lubrication assembly 6 can supply lubricating oil to the side wall of the steel wire 5 through the lower oil supply pipe 63 and the upper oil supply pipe 64 during calendering. Excess lubricating oil is stored in the oil hopper 611, which is placed below the steel wire 5 to collect the remaining lubricating oil. The oil pump 61 realizes the circulation of oil supply. The lower oil supply pipe 63 and the upper oil supply pipe 64 are provided with outlets corresponding to the steel wire 5. Before the steel wire 5 is calendered by the side pressing assembly 2 and the calendering assembly, lubricating oil is supplied to the outer surface of the steel wire 5. Lubrication is provided for each calendering, ensuring that the calendering is crack-proof. The rotating ring 321 allows the upper coating part 32 to rotate. The upper coating part 32 rotates to apply lubricating oil to the outer wall of the steel wire 5. The lower coating part 42 is also rotated and installed on the outside of the first guide rod 4 to ensure that the lubricating oil is evenly coated. The rotation can also prevent the upper coating part 32 and the lower coating part 42 from sliding relative to the steel wire 5 and causing wear.

[0060] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wire drawing device for preventing breakage of cold heading wire, comprising a calender assembly, a helical steel wire (5) is sleeved and installed on the calender assembly, characterized in that, The calender assembly has a main frame (11), the middle roller (1) is rotatably installed on the left side of the main frame (11), the lower pressing part (3) is installed on the top end of the main frame (11) and located at the right upper portion of the middle roller (1), the lower pressing part (3) has a hydraulic cylinder (34), the top end of the hydraulic cylinder (34) is fixedly connected with the main frame (11), the bottom end of the hydraulic cylinder (34) is installed with a pressing frame (31), the auxiliary roller (33) is rotatably installed on the lower portion of the pressing frame (31), and the steel wire (5) is extruded and extended between the auxiliary roller (33) and the middle roller (1). The auxiliary roller (33) is installed with limiting convex edges (331) on the left and right sides, and the steel wire (5) is clamped and extruded by the auxiliary roller (33) and the middle roller (1) between the two limiting convex edges (331). The main frame (11) is provided with a first guide rod (4) at the lower portion, the first guide rod (4) is located directly below the main frame (11), the lower portion of the steel wire (5) is sleeved below the first guide rod (4), and the upper portion of the steel wire (5) is sleeved above the middle roller (1). The main frame (11) is provided with a side pressing assembly (2) at the right rear portion, the side pressing assembly (2) comprises two vertical rollers (21), the steel wire (5) is clamped by the two vertical rollers (21), and the vertical rollers (21) are connected through a double-headed telescopic cylinder (24). The main frame (11) is provided with a lubricating assembly (6) at the lower portion, the lubricating assembly (6) comprises an oil tank (611) which is opened upward, the oil tank (611) is internally provided with an oil pump (61), the oil outlet of the oil pump (61) is installed with a conveying pipe (62), and the conveying pipe (62) is serially installed with a lower oil supply pipe (63) and an upper oil supply pipe (64).

2. A wire drawing device for preventing breakage of cold heading wire according to claim 1, wherein The right portion of the first guide rod (4) is arranged in parallel with the main frame (11), the left portion of the first guide rod (4) is raised upward to form an upward lifting portion (41), and the left end of the upward lifting portion (41) abuts against and contacts the left lower portion of the outer wall of the main frame (11).

3. A wire drawing device for preventing breakage of cold heading wire according to claim 1, wherein The side pressing assembly (2) comprises a connecting frame (23), the connecting frame (23) is provided with a second guide rod (231) at the middle portion, the second guide rod (231) is slidably installed with a connecting frame (22) at the outer side, the connecting frame (22) is rotatably connected with the vertical roller (21), the connecting frame (22) is installed with a supporting plate (221) at the middle portion, the connecting frame (23) is provided with a gap (233) for linear sliding of the supporting plate (221) at the middle portion, the supporting plate (221) is provided with a supporting lug (222) at the end portion, and the supporting lug (222) is fixedly connected with the double-headed telescopic cylinder (24).

4. A wire drawing device for preventing breakage of cold heading wire according to claim 3, wherein The side pressing assembly (2) is provided with at least two, the connecting frame (23) is provided with a fixing frame (232) at the left and right sides, and the radial angle of the side pressing assembly (2) relative to the steel wire (5) can be controlled by changing the length of the fixing frame (232).

5. A wire drawing device for preventing breakage of cold heading wire according to claim 1, wherein The lower oil supply pipe (63) and the upper oil supply pipe (64) are provided with outlets corresponding to the steel wire (5), and the outlets are located above the positions where the steel wire (5) contacts the side pressing assembly (2) and the calender assembly.

6. A wire drawing device for preventing breakage of cold heading wire according to claim 5, wherein The lower pressing part (3) is located below the outlet of the upper oil supply pipe (64) and is provided with a swivel ring (321), an upper coating part (32) is installed outside the swivel ring (321), and the first guide rod (4) is located below the outlet of the lower oil supply pipe (63) and is provided with a lower coating part (42) outside.

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