Cooling device for wire drawing processing

Abstract

The utility model relates to a cooling device for wiredrawing processing, which comprises a first cooling assembly which is connected with the output end of a wiredrawing machine body and is used for cooling a formed wire body output by the wiredrawing machine body, and a second cooling assembly which is arranged in the wiredrawing machine body and can be used for cooling a wiredrawing die, the first cooling assembly and the second cooling assembly are connected with an external circulation unit through a first circulation pipeline and a second circulation pipeline correspondingly, and a cooling shell of the first cooling assembly is installed at the output end of the wire drawing machine body. And a cooling groove is formed in a shell cavity of the cooling shell in a manner of alternately carrying out multiple times of liquid cooling treatment and steam film crushing treatment on a line body penetrating into the shell cavity of the cooling shell. According to the utility model, the cooling efficiency and the cooling quality of the wire-drawn and formed metal wire can be improved, and the surface oxidation of the wire can be avoided through an in-cavity cooling mode.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling equipment for wire drawing production, in particular to a cooling device for wire drawing processing. Background Art

[0002] Wire drawing machine, also known as wire drawing machine, is a kind of mechanical equipment widely used in machinery manufacturing, hardware processing, petrochemical, wire and cable and other industries. It is used to draw wires or bars so that the diameter, roundness, internal metallographic structure, surface finish and straightness of the wires or bars meet the raw material processing requirements for the production of standard parts and other metal products. At present, the product needs to be cooled after the raw material is drawn into shape. However, most of the existing cooling methods use natural air cooling, which has the problem of slow cooling speed, thus affecting the time of wire drawing.

[0003] In order to improve cooling efficiency, existing manufacturers usually install a cooling water tank downstream of the wire drawing die to cool the wire. However, when the cooling water output by the conventional water tank cooling structure contacts the hot metal wire, it will absorb heat and vaporize on the surface of the wire to form a vapor film on the surface of the wire. Since the heat transfer coefficient between the cooling water and the metal wire is greater than the heat transfer coefficient between the vapor film and the metal wire, the vapor film that hinders the contact between the cooling water and the metal wire will seriously reduce the efficiency of heat exchange between the metal wire and the cooling water, thereby restricting the cooling speed of the metal wire and reducing the cooling effect and efficiency. In addition, during the process of wire drawing, a large amount of heat will accumulate in the wire body, causing the temperature to rise. If the formed wire is directly placed in the external environment, it will cause high-temperature oxidation on the surface of the wire body, resulting in a decrease in the quality of the wire. Utility Model Content

[0004] The utility model aims to provide a cooling device for wire drawing which can improve the cooling efficiency and cooling quality of the metal wire after wire drawing while avoiding oxidation of the wire surface by means of intra-cavity cooling, so as to solve the problems of low cooling efficiency of the existing water tank cooling equipment used in wire drawing production and wire oxidation still occurring in the external exposed water cooling process, thus affecting the wire quality.

[0005] The technical solution adopted by the utility model is: a cooling device for wire drawing processing, including a first cooling component connected to the output end of the wire drawing machine body for cooling the formed wire body outputted therefrom, a second cooling component capable of cooling the wire drawing die is also arranged in the wire drawing machine body, the first cooling component and the second cooling component are respectively connected to an external circulation unit through a first circulation pipeline and a second circulation pipeline, a cooling shell of the first cooling component is installed at the output end of the wire drawing machine body, and the cooling shell constructs a cooling groove in its shell cavity in a manner that the wire body penetrating its shell cavity can be alternately subjected to multiple liquid cooling treatments and vapor film breaking treatments.

[0006] According to a preferred embodiment, the cooling tank includes a tank body, a first immersion wheel, a second water impingement wheel, a third immersion wheel, a fourth air impingement wheel, a fifth immersion wheel, a sixth drying wheel and a supporting transverse axis, wherein the first immersion wheel, the third immersion wheel and the fifth immersion wheel are positioned in the coolant contained in the tank body through the supporting transverse axis, and the second water impingement wheel, the fourth air impingement wheel and the sixth drying wheel are positioned above the coolant contained in the tank body through the supporting transverse axis.

[0007] According to a preferred embodiment, the first immersion wheel, the second water impingement wheel, the third immersion wheel, the fourth air impingement wheel, the fifth immersion wheel and the sixth drying wheel are arranged at intervals in the trough body to construct an undulating travel path for the wire body to be intermittently immersed in the cooling liquid in the trough body.

[0008] According to a preferred embodiment, the two ends of the supporting horizontal axis are inserted on two opposite sides of the trough body, and the first immersion wheel, the second water impingement wheel, the third immersion wheel, the fourth air impingement wheel, the fifth immersion wheel and the sixth drying wheel are rotatably mounted on the supporting horizontal axis.

[0009] According to a preferred embodiment, a water flow impact mechanism, an air blowing impact mechanism and an air blowing drying mechanism are arranged on the upper side of the tank body, which are respectively located above the second water impeller, the fourth air impeller and the sixth drying impeller.

[0010] According to a preferred embodiment, the first circulation pipeline includes a first input pipe for inputting the low-temperature coolant output by the external circulation unit into the cooling tank and a second output pipe for transporting the coolant in the cooling tank to the external circulation unit.

[0011] According to a preferred embodiment, a first guide wheel and a second guide wheel are provided in the cooling shell, which can respectively guide the wire body penetrating into its shell cavity into and out of the cooling groove, wherein the first guide wheel and the second guide wheel are both supported on the inner shell wall of the cooling shell by telescopic support columns.

[0012] According to a preferred embodiment, the side of the cooling shell is also provided with an opening and a door panel adapted to the opening, wherein the door panel is rotatably connected to the shell of the cooling shell via a rotating shaft arranged at the edge of the opening, thereby being able to adjustably block the opening.

[0013] According to a preferred embodiment, the second cooling assembly includes the spiral coil sleeved on the outer annular surface of the wire drawing die and an inlet and an outlet respectively arranged at the input end and the output end of the spiral coil.

[0014] According to a preferred embodiment, the inlet is connected to the output end of the external circulation unit through the second inlet pipe of the second circulation pipeline; the outlet is connected to the input end of the external circulation unit through the second outlet pipe of the second circulation pipeline.

[0015] The beneficial effects of the utility model are:

[0016] The present application sets a first cooling component and a second cooling component to cool down the formed metal wire and the drawing die for drawing and forming respectively, so as to reduce the temperature of the metal wire and ensure its wire quality while reducing the temperature of the drawing die, thereby ensuring the production quality and the service life of the production equipment. The present application also forms a circulating cooling loop with the first cooling component, the second cooling component and the external circulation unit respectively through a first circulation pipeline and a second circulation pipeline in parallel, so as to realize the recycling of the coolant and the continuous transfer of heat, so as to improve the continuity of the heat transfer cooling treatment. The first cooling component set in the present application limits the forming wire body to be immersed in and out of the coolant multiple times, so that the wire body is alternately subjected to multiple liquid cooling treatments and vapor film breaking treatment processes, so as to ensure the cooling effect on the wire body while breaking and removing the evaporation vapor film that may be formed on the surface of the wire body, thereby improving the cooling efficiency and shortening the cooling time. The first cooling component is directly installed at the output end of the wire drawing machine without gaps, so as to ensure that the formed wire is directly cooled in a certain inner cavity environment, reducing the possibility of high-temperature wire contact with air, effectively avoiding the defect of the wire forming an oxidized surface layer due to oxidation reaction with air under high temperature conditions, and improving the quality of the formed wire. In addition, the first cooling component can also remove surface moisture from the wire through an inert gas blowing and drying process, greatly improving the dryness of the wound wire body and reducing the possibility of rust and corrosion of the wire body in a humid environment. The second cooling component can continuously transfer the heat generated by the high-intensity friction between the wire drawing die and the passing metal wire, thereby ensuring that the wire drawing die is limited to a certain temperature range and can continuously and stably perform wire drawing processing, greatly improving the service life of the wire drawing die and the quality of the wire formed by wire drawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preferred cooling device for wire drawing proposed by the utility model;

[0018] Figure 2 This is a schematic structural diagram of a cooling tank of a preferred cooling device for wire drawing proposed by the utility model;

[0019] Figure 3 It is a side view of an air guide arc plate of a preferred cooling device for wire drawing proposed by the utility model;

[0020] Figure 4 It is a top view of an air guide arc plate of a preferred cooling device for wire drawing proposed by the utility model.

[0021] Reference numerals list

[0022] 1: wire drawing machine body; 2: first cooling assembly; 3: second cooling assembly; 4: first circulation pipeline; 5: second circulation pipeline; 6: external circulation unit; 11: wire drawing die; 21: cooling shell; 22: cooling trough; 23: first guide wheel; 24: second guide wheel; 25: telescopic support column; 26: water flow impact mechanism; 27: air blowing impact mechanism; 28: air blowing drying mechanism; 31: spiral coil; 32: inlet; 33: outlet; 41: first input pipe; 42: second output pipe; 43: third input pipe; 51: second inlet pipe ; 52: second outlet pipe; 211: opening; 212: door panel; 213: rotating shaft; 221: tank body; 222: first immersion wheel; 223: second water impingement wheel; 224: third immersion wheel; 225: fourth air impingement wheel; 226: fifth immersion wheel: 227: sixth drying wheel; 228: supporting horizontal axis; 261: first connecting rod; 262: water spray pipe; 271: air supply connecting rod; 272: air blowing nozzle; 273: air storage tank; 281: lifting connecting column; 282: connecting hose; 283: air guide arc plate; 284: air outlet pipe head. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] The technical solution provided by the present invention will be described in detail below by way of examples with reference to the accompanying drawings. It should be noted that the description of these examples is used to help understand the present invention, but does not constitute a limitation of the present invention. In some examples, some implementation methods are not described or are not described in detail because they belong to existing or conventional technologies.

[0025] In addition, the technical features recorded in this article, or the steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can also be combined in any suitable manner in one or more embodiments. For those skilled in the art, it is easy to understand that the steps or operation sequence of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only for illustrative purposes and does not imply a requirement to follow a certain order unless it is explicitly stated that a certain order is required.

[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, under reasonable circumstances (not constituting a self-contradiction), include direct and indirect connections (couplings).

[0027] The following is a detailed description with reference to the accompanying drawings.

[0028] Example 1

[0029] The present application provides a cooling device for wire drawing, which includes a wire drawing machine body 1, a first cooling component 2, a second cooling component 3, a first circulation pipeline 4, a second circulation pipeline 5 and an external circulation unit 6.

[0030] according to Figure 1-2A specific embodiment is shown, in which the wire drawing machine body 1 can introduce one end of the raw material into the drawing path defined by it under manual operation, so that it is drawn and formed under the restriction of the wire drawing die 11. The output end of the wire drawing machine body 1 is connected to a first cooling component 2 for cooling the formed wire body outputted by it. A second cooling component 3 capable of cooling the wire drawing die 11 is also provided in the wire drawing machine body 1. The first cooling component 2 and the second cooling component 3 are respectively connected to the external circulation unit 6 through the first circulation pipeline 4 and the second circulation pipeline 5. The present application cools the formed metal wire and the wire drawing die 11 for drawing and forming respectively by providing the first cooling component 2 and the second cooling component 3, so that the temperature of the wire drawing die 11 can be reduced while the temperature of the metal wire is reduced to ensure the quality of the wire body, thereby ensuring the production quality and the service life of the production equipment. The present application also forms a circulating cooling loop with the first cooling component 2, the second cooling component 3 and the external circulation unit 6 respectively through the first circulation pipeline 4 and the second circulation pipeline 5 connected in parallel, so as to realize the recycling of the coolant and the continuous transfer of heat, so as to improve the continuity of the heat transfer cooling process. The first cooling component 2 provided in the present application limits the forming wire body to be immersed in and out of the coolant multiple times, so that the wire body is alternately subjected to multiple liquid cooling treatments and vapor film breaking treatment processes, so as to ensure the cooling effect on the wire body while breaking and removing the evaporation vapor film that may be formed on the surface of the wire body, thereby improving the cooling efficiency and shortening the cooling time. The first cooling component 2 is directly installed at the output end of the wire drawing machine body 1 without gaps, so as to ensure that the formed wire is directly cooled in a certain inner cavity environment, reducing the possibility of high-temperature wire contact with air, effectively avoiding the defect of the wire forming an oxidized surface layer by oxidation reaction with air under high temperature conditions, and improving the quality of the formed wire. In addition, the first cooling component 2 can also remove surface moisture from the wire by blowing and drying with an inert gas, greatly improving the dryness of the wound wire and reducing the possibility of rust and corrosion of the wire in a humid environment. The second cooling component 3 can continuously transfer the heat generated by the high-intensity friction between the wire drawing die 11 and the passing metal wire, thereby ensuring that the wire drawing die 11 can be limited to a certain temperature range and can continuously and stably perform wire drawing processing, greatly improving the service life of the wire drawing die 11 and the quality of the wire drawn.

[0031] Preferably, the first cooling assembly 2 comprises a cooling shell 21, a cooling trough 22, a first guide wheel 23, a second guide wheel 24, a telescopic support column 25, a water flow impact mechanism 26, an air blowing impact mechanism 27 and an air blowing drying mechanism 28. Preferably, the cooling shell 21 of the first cooling assembly 2 is installed at the output end of the wire drawing machine body 1. Preferably, the cooling shell 21 constructs a cooling trough 22 in its shell cavity in such a way that the wire body penetrating into its shell cavity can be alternately subjected to multiple liquid cooling treatments and vapor film breaking treatments. Preferably, a first guide wheel 23 and a second guide wheel 24 are provided in the cooling shell 21, which can respectively lead the wire body penetrating into its shell cavity into and out of the cooling trough 22. Preferably, the first guide wheel 23 and the second guide wheel 24 are both supported on the inner shell wall of the cooling shell 21 through a telescopic support column 25. A water flow impact mechanism 26, an air blowing impact mechanism 27 and an air blowing drying mechanism 28 are arranged on the upper side of the cooling trough 22 to respectively perform water flow impact film removal, air flow impact film removal and air flow dehydration and drying treatment on the wire body passing through different areas. The water flow impact mechanism 26, air blowing impact mechanism 27 and air blowing drying mechanism 28 arranged in the present application can cooperate with the cooling trough 22 to realize intermittent water immersion, vapor film breaking treatment and drying treatment before output, thereby ensuring the quality and speed of cooling, greatly shortening the cooling time, improving the cooling efficiency and the quality of the final output silk thread, avoiding heat accumulation in the silk thread and preventing its high-temperature oxidation.

[0032] Preferably, the side of the cooling shell 21 is provided with an opening 211 and a door panel 212 adapted to the opening 211. Preferably, the door panel 212 is rotatably connected to the shell of the cooling shell 21 through a rotating shaft 213 arranged at the edge of the opening 211, so as to adjustably block the opening 211. Preferably, an exhaust port is provided on the top or side of the cooling shell 21 to facilitate the discharge of the gas input into the interior of its shell cavity. Preferably, the telescopic support column 25 can adopt a hydraulic telescopic rod to adjust the support station constructed thereof. The opening 211 and the door panel 212 provided in the present application facilitate the disassembly and assembly maintenance of the components in the shell cavity and the cleaning and maintenance of the inner cavity according to needs, thereby improving the service life and durability of the components.

[0033] Preferably, the cooling tank 22 comprises a tank body 221, a first immersion wheel 222, a second water impingement wheel 223, a third immersion wheel 224, a fourth air impingement wheel 225, a fifth immersion wheel 226, a sixth drying wheel 227 and a support transverse shaft 228. Preferably, the first immersion wheel 222, the third immersion wheel 224 and the fifth immersion wheel 226 are positioned in the coolant contained in the tank body 221 at intervals through the support transverse shaft 228. Preferably, the second water impingement wheel 223, the fourth air impingement wheel 225 and the sixth drying wheel 227 are positioned above the coolant contained in the tank body 221 at intervals through the support transverse shaft 228. Preferably, the first immersion wheel 222, the second water impingement wheel 223, the third immersion wheel 224, the fourth air impingement wheel 225, the fifth immersion wheel 226 and the sixth drying wheel 227 are arranged at intervals in the tank body 221 to construct an undulating path for the wire body to intermittently immerse in the cooling liquid in the tank body 221, so as to alternately complete the immersion cooling and the vapor film breaking process in the tank cavity of the tank body 221. Preferably, the two ends of the support horizontal shaft 228 are inserted on the two opposite sides of the tank body 221, and the first immersion wheel 222, the second water impingement wheel 223, the third immersion wheel 224, the fourth air impingement wheel 225, the fifth immersion wheel 226 and the sixth drying wheel 227 are rotatably sleeved on the support horizontal shaft 228. Further preferably, the wheel body is a wire body accommodating structure with a V-shaped outer annular surface. Preferably, a filter screen is also provided at the output bottom of the tank body 221 to perform secondary filtration on the coolant returned to the external circulation unit 6 to ensure the purity of the coolant. The present application arranges the first immersion wheel 222, the second water impingement wheel 223, the third immersion wheel 224, the fourth air impingement wheel 225, the fifth immersion wheel 226 and the sixth drying wheel 227 in different height planes to limit the metal wires that successively bypass the above-mentioned wheel bodies to intermittently penetrate the coolant along the ups and downs of the travel path, thereby improving the cooling quality and cooling efficiency while making the surface dryness of the final output wire higher.

[0034] Preferably, a water flow impact mechanism 26, an air blow impact mechanism 27 and an air blow drying mechanism 28 are respectively arranged on the upper side of the tank body 221, which are located above the second water impeller 223, the fourth air impeller 225 and the sixth drying impeller 227. Preferably, the water flow impact mechanism 26 includes a first connecting rod 261 connected to the inner top surface of the cooling shell 21 and a water spray pipe 262 arranged below the first connecting rod 261. Preferably, the water spray pipe 262 is connected to the external circulation unit 6 through the third input pipe 43 of the first circulation pipeline 4. Preferably, an electromagnetic switch valve is arranged in the third input pipe 43 so that the operator can control the water outlet of the water spray pipe 6 according to the demand. And the water flow sprayed by the water spray pipe 6 can directly impact the wire body to remove the vapor film on the surface of the wire body, and the water flow after passing through the wire body further flows into the cooling tank 22, so as to reflux and perform secondary cooling circulation together with the coolant accumulated in the cooling tank 22.

[0035] Preferably, the air blowing impact mechanism 27 includes an air supply connecting rod 271, an air blowing nozzle 272 and an air storage tank 273 inserted on the cooling shell 21. Preferably, the air blowing nozzle 272 is suspended above the fourth air impeller 225 through the air supply connecting rod 271, and the end of the air supply connecting rod 271 away from the air blowing nozzle 272 is connected to the air storage tank 273 arranged outside the cooling shell 21. Preferably, an electromagnetic switch valve is arranged in the air supply connecting rod 271, so that the operator can control the opening and closing of the pipeline according to the processing conditions and transmit the air flow adjustably. Preferably, the air blowing nozzle 272 is a small-diameter flat mouth, so that the air flow it sprays can effectively cover a small section of the wire body and effectively remove the vapor film on the surface of the wire body. Further preferably, the air blowing nozzle 272 is located directly above the fourth air impeller 225, so that the wire body bypassing the fourth air impeller 225 is subjected to a strong air flow film breaking treatment. Preferably, industrial nitrogen is stored in the gas storage tank 273 to prevent air molecules from contacting the wire body and causing an oxide layer defect on the wire body surface.

[0036] Preferably, the air blowing and drying mechanism 28 comprises a lifting connection column 281, a connecting hose 282, an air guide arc plate 283 and an air outlet pipe head 284. Preferably, the lifting connection column 281 is installed on the inner top surface of the cooling shell 21, and the air guide arc plate 283 is provided at its axial lower end. Preferably, the arc surface center line of the air guide arc plate 283 is parallel to the inner top surface of the cooling shell 21, and the arc surface of the air guide arc plate 283 faces the wire body, and a plurality of air outlet pipe heads 284 connected to the inner cavity of the plate are obliquely staggered on the arc surface. Specifically, the projections of the air outlet pipe heads 284 in the axial direction of the plate body are respectively located on different sections of the arc line, so as to form an intersection angle with each other, so as to purge and dry different sides of the wire body. Further preferably, a heating wire is provided in the inner plate cavity of the air guide arc plate 283 to facilitate the thermal processing of the gas, so that the blown hot air flow can effectively take away the moisture on the surface of the wire body. Preferably, the air guide arc plate 283 is connected to the gas storage tank 273 through a connecting hose 283 to output a low-activity nitrogen gas flow in a directional manner when the gas guide arc plate 283 is connected.

[0037] Preferably, the second cooling assembly 3 includes a spiral coil 31 sleeved on the outer annular surface of the cylindrical or pancake-shaped wire drawing die 11, and an inlet 32 ​​and an outlet 33 respectively arranged at the input end and the output end of the spiral coil 31. Preferably, the inlet 32 ​​is connected to the output end of the external circulation unit 6 through the second inlet pipe 51 of the second circulation pipeline 5. Further preferably, the outlet 33 is connected to the input end of the external circulation unit 6 through the second outlet pipe 52 of the second circulation pipeline 5. Preferably, the first circulation pipeline 4 includes a first input pipe 41 for inputting the low-temperature coolant output by the external circulation unit 6 into the cooling tank 22 and a second output pipe 42 for conveying the coolant in the cooling tank 22 to the external circulation unit 6. Preferably, a driving liquid pump is provided in both the first input pipe 41 and the second output pipe 42 as required, so that the operator can adjust the driving coolant to flow directional in the closed loop according to work requirements. Preferably, the external circulation unit 6 can continuously perform secondary cooling on the cooling liquid that has absorbed heat and heated up, so that the cooled cooling liquid can be used for secondary heat transfer and cooling. Further preferably, the external circulation unit 6 can use a low-temperature cooling liquid circulation pump of model DLSB-5 / 10.

[0038] The present utility model is not limited to the above optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope of the claims of the present utility model fall within the protection scope of the present utility model. Those skilled in the art should understand that the present utility model specification and its drawings are illustrative and do not constitute limitations on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A cooling device for wire drawing, comprising a first cooling assembly (2) connected to an output end of a wire drawing machine (1) for cooling a formed wire outputted therefrom, characterized in that: A second cooling component (3) capable of cooling the wire drawing die (11) is also provided in the wire drawing machine body (1). The first cooling assembly (2) and the second cooling assembly (3) are connected to an external circulation unit (6) via a first circulation pipeline (4) and a second circulation pipeline (5), respectively. The cooling shell (21) of the first cooling component (2) is installed at the output end of the wire drawing machine body (1), and the cooling shell (21) constructs a cooling groove (22) in its shell cavity in a manner that the wire body passing through its shell cavity can be subjected to multiple liquid cooling treatments and vapor film breaking treatments alternately.

2. The wire drawing cooling device according to claim 1, characterized in that: The cooling tank (22) comprises a tank body (221), a first immersion wheel (222), a second water impingement wheel (223), a third immersion wheel (224), a fourth air impingement wheel (225), a fifth immersion wheel (226), a sixth drying wheel (227) and a supporting horizontal shaft (228), wherein: The first immersion wheel (222), the third immersion wheel (224), and the fifth immersion wheel (226) are positioned in the cooling liquid contained in the tank body (221) at intervals through the supporting transverse axis (228). The second water impeller (223), the fourth air impeller (225), and the sixth drying impeller (227) are positioned above the cooling liquid contained in the tank body (221) at intervals via the supporting transverse axis (228).

3. The wire drawing cooling device according to claim 2, characterized in that: A first immersion wheel (222), a second water impingement wheel (223), a third immersion wheel (224), a fourth air impingement wheel (225), a fifth immersion wheel (226) and a sixth drying wheel (227) are arranged at intervals in the tank body (221) to construct an undulating path for the wire body to be intermittently immersed in cooling liquid in the tank body (221).

4. The wire drawing cooling device according to claim 3, characterized in that: The two ends of the supporting transverse axis (228) are inserted on two opposite side surfaces of the trough body (221), and the first immersion wheel (222), the second water impingement wheel (223), the third immersion wheel (224), the fourth air impingement wheel (225), the fifth immersion wheel (226) and the sixth drying wheel (227) are rotatably sleeved on the supporting transverse axis (228).

5. The wire drawing cooling device according to claim 4, characterized in that: A water flow impact mechanism (26), an air blowing impact mechanism (27) and an air blowing drying mechanism (28) are arranged on the upper side of the tank body (221) and are located above the second water impeller (223), the fourth air impeller (225) and the sixth drying wheel (227), respectively.

6. The wire drawing cooling device according to claim 5, characterized in that: The first circulation pipeline (4) comprises a first input pipe (41) for inputting the low-temperature coolant output by the external circulation unit (6) into the cooling tank (22) and a second output pipe (42) for transporting the coolant in the cooling tank (22) to the external circulation unit (6).

7. The wire drawing cooling device according to claim 6, characterized in that: A first guide wheel (23) and a second guide wheel (24) are arranged in the cooling shell (21) and are capable of respectively guiding the wire body penetrating into the shell cavity into and out of the cooling groove (22), wherein: The first guide wheel (23) and the second guide wheel (24) are both supported on the inner shell wall of the cooling shell (21) via telescopic support columns (25).

8. The wire drawing cooling device according to claim 7, characterized in that: The side of the cooling shell (21) is also provided with an opening (211) and a door panel (212) adapted to the opening (211), wherein: The door plate (212) is rotatably connected to the shell of the cooling shell (21) via a rotating shaft (213) arranged at the edge of the opening (211), thereby adjusting the sealing of the opening (211).

9. The wire drawing cooling device according to claim 8, characterized in that: The second cooling assembly (3) comprises a spiral coil (31) sleeved on the outer annular surface of the wire drawing die (11), and an inlet (32) and an outlet (33) respectively arranged at the input end and the output end of the spiral coil (31).

10. The wire drawing cooling device according to claim 9, characterized in that: The inlet (32) is connected to the output end of the external circulation unit (6) via the second inlet pipe (51) of the second circulation pipeline (5); The outlet (33) is connected to the input end of the external circulation unit (6) via the second outlet pipe (52) of the second circulation pipeline (5).

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