Direct drive ultra-fine wire drawing machine with cooling function and method

Abstract

The application discloses a direct-drive super-fine wire drawing machine with a cooling function and a method, and relates to the technical field of drawing machines, comprising a rack, wherein a drawing mechanism and a winding mechanism are arranged on the rack; the drawing mechanism comprises a drawing box with a mounting plate arranged on the rack, a drawing block is mounted on the mounting plate, and a fine wire passes through the drawing block in the drawing box and is connected with the winding mechanism; the drawing mechanism further comprises a temperature control mechanism; the temperature control mechanism comprises a heater, a refrigerator, a first temperature detector, a second temperature detector and a third temperature detector; the temperature control mechanism is arranged, the fine wire is heated before drawing, the temperature of the inner core and the surface of the fine wire is made consistent, the surface of the fine wire is cooled, the surface temperature and the inner core temperature of the fine wire are made consistent, drawing work is carried out on this basis, temperature balance in the drawing process is realized, the stress of the fine wire is more uniform in the drawing process, and the finished product quality of the fine wire is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of wire drawing machine technology, and specifically to a direct-drive ultra-fine wire drawing machine and method with cooling function. Background Technology

[0002] A fine wire drawing machine is a device used to process metal raw materials into fine metal wires through stretching or drawing processes. This process uses specific mechanical means to process metal materials into metal wires with high diameter precision and smooth surfaces. However, a large amount of heat is generated during the stretching process, so a cooling structure is required in the fine wire drawing machine. However, existing fine wire drawing machines with cooling functions still have the following drawbacks in use:

[0003] For example, Chinese Patent Publication No. CN222198347U discloses an ultra-fine wire drawing machine with a cooling function, including a device frame, a transmission frame mounted on the device frame, a rotating roller on one side of the transmission frame, a limiting roller connected to one side of the rotating roller, a metal wire connected inside the limiting roller, a drawing box mounted on the device frame, a heating coil inside the drawing box, a drawing block mounted on one side of the heating coil, and an annular outer tube on the outside of the drawing block. This solution reduces the possibility of material damage or deformation due to internal heat accumulation during the wire drawing process, reduces the possibility of metal wire breakage due to rapid temperature drop during wire drawing, improves the stability of the metal wire during the conveying process, and makes collection more convenient. It also improves the cooling effect of the device, enabling appropriate cooling and avoiding damage caused by rapid cooling.

[0004] Because a lot of heat is generated during the drawing process of fine wires, the surface temperature of the drawn part is very high while the core temperature is low, resulting in a huge temperature gradient. The core of the drawn part will bear huge tensile stress, and the ring outside the middle will bear huge compressive stress. Under the large temperature gradient, defects such as microcracks are easily generated inside the drawn finished product, leading to product scrap. Summary of the Invention

[0005] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide a direct-drive ultra-fine wire drawing machine and method with cooling function, so as to solve the problem of large temperature difference between the inner core and outer surface of the filament during the drawing process, which affects product quality.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A direct-drive ultra-fine wire drawing machine with cooling function includes a frame, on which a wire drawing mechanism and a winding mechanism are mounted. The wire drawing mechanism includes a wire drawing box mounted on the frame with a mounting plate, on which a wire drawing block is mounted. The fine wire passes through the wire drawing block inside the wire drawing box and connects to the winding mechanism. The wire drawing mechanism also includes a temperature control mechanism, which includes a heater, a cooler, a first temperature sensor, a second temperature sensor, and a third temperature sensor. The heater is mounted in the wire drawing box and is used to heat the fine wire so that the core of the fine wire... The surface temperature is maintained at the same level as the wire drawing box; the cooler is installed in the wire drawing box and is used to cool the surface temperature of the filament; the heater, cooler, and wire drawing block are arranged sequentially along the wire conveying direction; the first temperature sensor is set between the heater and the cooler and is used to detect the surface temperature of the filament after being heated by the heater; the second temperature sensor is set between the cooler and the wire drawing block and is used to detect the surface temperature of the filament after being cooled by the cooler before wire drawing; the third temperature sensor is set in the wire drawing box and is used to detect the surface temperature of the filament after being drawn by the wire drawing block.

[0008] Preferably, the heater includes a spiral heating tube, and the cooler includes a spiral cooling tube; both the heating tube and the cooling tube are coaxially sleeved on the filament.

[0009] Preferably, the wire drawing mechanism further includes a lubrication mechanism; the lubrication mechanism is mounted on the frame and is used to lubricate and cool the friction points between the wire drawing block and the filament.

[0010] Preferably, the lubrication mechanism includes a storage tank, a micro pump, a delivery pipe, a storage ring, a spiral tube, and a rotating ring; the rotating ring is coaxially rotatably connected to the drawing block, and multiple nozzles are arranged in a circumferential array on the rotating ring; the storage tank is disposed in the drawing box and is filled with lubricating fluid; the micro pump is installed in the drawing box, and the input end of the micro pump is connected to the bottom of the storage tank through the delivery pipe; the storage ring is sleeved on the rotating ring, and the interior of the storage ring is connected to the drawing hole of the drawing block through the nozzles; the output end of the micro pump is connected to the storage ring through the delivery pipe; the spiral tube is disposed on the storage ring and is sleeved on the cooling pipe.

[0011] Preferably, the lubrication mechanism further includes a control mechanism for driving the rotating ring to rotate; the control mechanism includes a worm wheel, a worm, and a driving component; the worm wheel is coaxially fixed to the rotating ring, the worm is mounted on the mounting plate, and the worm wheel and the worm are meshed together; the driving component is mounted on the wire drawing box and is used to drive the worm to rotate around its axis.

[0012] Preferably, the control mechanism further includes a baffle and a rubber stopper; the baffle is fixed to the storage tank and is rotatably connected to the rotating ring on the same axis; the rubber stopper is disposed on the baffle, and the filament passes through the rubber stopper; the baffle is provided with an outlet for discharging lubricating fluid from the rotating ring.

[0013] Preferably, the wire drawing mechanism further includes a positioning mechanism, which includes a first positioning wheel and a second positioning wheel; the storage box is provided with a mounting block, the first positioning wheel and the second positioning wheel are rotatably connected to the mounting block, and the axes of the first positioning wheel and the second positioning wheel are parallel, the filament is disposed between the first positioning wheel and the second positioning wheel, and the first positioning wheel and the second positioning wheel can be driven to rotate when the filament is drawn and conveyed.

[0014] Preferably, the positioning mechanism further includes a belt drive mechanism; one end of the belt drive mechanism is connected to the second positioning wheel, and the other end of the belt drive mechanism is connected to the worm gear; the belt drive mechanism is used to transmit the rotational power of driving the second positioning wheel to the worm gear to drive the worm gear to rotate.

[0015] Preferably, the positioning mechanism further includes a second adjustment mechanism, which includes a rotating shaft, a second threaded adjusting rod, an adjusting plate, a pair of adjusting blocks, and a spring; a groove is provided on the mounting block, the rotating shaft is slidably connected to the groove, and the second positioning wheel is coaxially fixed to the rotating shaft; the pair of adjusting blocks are respectively sleeved on both ends of the rotating shaft, the second threaded adjusting rod is rotatably connected to the mounting block, the adjusting plate is disposed above the mounting block, and the second threaded adjusting rod is threadedly connected to the adjusting plate, and the adjusting plate and the adjusting blocks are connected by a spring.

[0016] A direct-drive ultra-fine wire drawing method with cooling function, using the aforementioned direct-drive ultra-fine wire drawing machine with cooling function, specifically includes the following steps:

[0017] Step 1: Wire drawing temperature detection: Start the winding mechanism to allow the filament to pass through the wire drawing block and begin the wire drawing process; at the same time, start the third temperature sensor to detect the surface temperature K of the filament after the wire drawing block has drawn the filament, thus completing the temperature test before the formal wire drawing process.

[0018] Step 2, Drawing Temperature Control: Start the winding mechanism. Before entering the drawing block, the filament is first heated to the set temperature K by the heater, and the temperature is confirmed to be up to standard by the first temperature sensor. Then, the filament enters the cooler for surface cooling by a temperature drop of K, and the second temperature sensor ensures that the surface temperature has dropped to the required range. After completing the heating and cooling process, the filament passes through the drawing block for drawing, so that the core and surface temperatures of the drawn filament are kept close, thus completing the temperature control and detection work before drawing.

[0019] The beneficial effects of this invention are:

[0020] By setting up a temperature control mechanism, the filament is heated before drawing to make the core and surface temperatures of the filament consistent. Then, the surface of the filament is cooled to ensure that its surface temperature is close to the core temperature. On this basis, the drawing process can be carried out to achieve temperature balance during the drawing process, so that the filament is subjected to more uniform force during the stretching process, effectively improving the quality of the finished filament.

[0021] By setting up a lubrication mechanism, lubrication and cooling are achieved during the filament drawing process. This mechanism uses a method of driving the lubricating fluid to rotate and spray, so that the lubricating fluid is evenly distributed between the filament and the drawing block, thereby effectively improving the lubrication effect and reducing the temperature, ensuring the smoothness and stability of the filament during the drawing process.

[0022] By setting up a positioning mechanism, the filament is ensured to remain taut throughout the drawing process, thereby guaranteeing the stability and quality of the drawing. At the same time, the belt drive mechanism works in conjunction with the positioning mechanism to drive the lubricant to rotate and spray, which not only improves the spraying efficiency and uniformity of the lubricant, but also further enhances the overall ease of use of the equipment. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 This is a three-dimensional enlarged structural schematic diagram of the wire drawing mechanism of the present invention;

[0026] Figure 3 This is a three-dimensional enlarged structural diagram of the wire drawing mechanism of the present invention after removing part of the wire drawing box;

[0027] Figure 4 This is a front view enlarged structural schematic diagram of the wire drawing mechanism of the present invention;

[0028] Figure 5 This is a three-dimensional enlarged structural schematic diagram of the lubrication mechanism of the present invention;

[0029] Figure 6 This is a three-dimensional enlarged structural diagram of the wire drawing block of the present invention;

[0030] Figure 7 This is a three-dimensional enlarged structural schematic diagram of the lubrication mechanism of the present invention;

[0031] Figure 8 This is a partially cross-sectional, enlarged three-dimensional structural diagram of the lubrication mechanism of the present invention;

[0032] Figure 9 This is a partial front view enlarged structural schematic diagram of the lubrication mechanism of the present invention;

[0033] Figure 10 This is the present invention. Figure 9 Enlarged structural diagram of region A in the middle;

[0034] Figure 11 This is a three-dimensional enlarged structural schematic diagram of the control mechanism of the present invention;

[0035] Figure 12 This is the present invention. Figure 11 Enlarged structural diagram of region B in the middle;

[0036] Figure 13 This is a flowchart of the method of the present invention.

[0037] In the diagram: 1. Frame; 2. First adjusting mechanism; 21. Guide wheel; 22. Adjusting wheel; 23. Slider; 24. First threaded adjusting rod; 3. Wire drawing mechanism; 31. Wire drawing box; 32. Mounting plate; 33. Wire drawing block; 34. Temperature control mechanism; 341. Heater; 3411. Heating tube; 342. Refrigerator; 3421. Refrigeration tube; 343. First thermometer; 344. Second thermometer; 35. Lubrication mechanism; 351. Storage tank; 352. Micro pump; 353. Delivery pipe; 354. Storage ring; 355. Nozzle; 356. Spiral tube 357. Control mechanism; 3571. Rotating ring; 3572. Baffle; 3573. Outlet; 3574. Rubber plug; 3575. Worm gear; 3576. Worm; 3577. Drive component; 36. Positioning mechanism; 361. First positioning wheel; 362. Rotating shaft; 363. Second positioning wheel; 364. Belt drive mechanism; 365. Second adjustment mechanism; 3651. Adjusting block; 3652. Second threaded adjusting rod; 3653. Adjusting plate; 3654. Spring; 4. Winding mechanism; 41. Motor; 42. Winding wheel; 5. Fine wire. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1-12 A direct-drive ultra-fine wire drawing machine with cooling function, such as Figure 1-4As shown, the system includes a frame 1, on which a wire drawing mechanism 3 and a winding mechanism 4 are mounted. The wire drawing mechanism 3 includes a wire drawing box 31 mounted on the frame 1 with a mounting plate 32. A wire drawing block 33 is mounted on the mounting plate 32. The filament 5 passes through the wire drawing block 33 inside the wire drawing box 31 and connects to the winding mechanism 4. The winding mechanism 4 includes a motor 41 mounted on the frame 1. The output end of the motor 41 is coaxially connected to a winding wheel 42. One end of the filament 5 is wound around the winding wheel 42. The wire drawing mechanism 3 also includes a temperature control mechanism 34. The temperature control mechanism 34 includes a heater 341, a cooler 342, a first temperature sensor 343, a second temperature sensor 344, and a third temperature sensor. The heater 341 is mounted on the wire drawing box 31 and is used to heat the filament 5 so that the core and surface of the filament 5 maintain the same temperature. The cooler 341... 2. Installed in the wire drawing box 31, used to cool the surface temperature of the filament 5; heater 341, cooler 342 and wire drawing block 33 are arranged sequentially along the conveying direction of the filament 5; first thermometer 343 is set between heater 341 and cooler 342, and used to detect the surface temperature of the filament 5 after being heated by heater 341; second thermometer 344 is set between cooler 342 and wire drawing block 33, and used to detect the surface temperature of the filament 5 after being cooled by cooler 342 before wire drawing; third thermometer is set in wire drawing box 31, and used to detect the surface temperature of the filament 5 after being drawn by wire drawing block 33; it is understood that the first thermometer 343, the second thermometer 344 and the third thermometer are all existing technologies, such as infrared thermometers, which can non-contactly measure the surface temperature of the filament 5, and will not be described in detail.

[0040] It should be noted that, firstly, the motor 41 drives the take-up wheel 42 to rotate, causing the filament 5 to pass through the drawing block 33 for drawing. During this process, the heater 341 and the cooler 342 are not activated; the drawing operation is completed solely by the drawing block 33. Subsequently, the surface temperature of the filament 5 is detected by a third temperature sensor, and this temperature value is recorded as K.

[0041] During the actual wire drawing process, as the take-up wheel 42 rotates, it winds up the filament 5. The heater 341 is activated to heat the filament 5, ensuring that its core and surface temperatures reach the previously recorded temperature value K, which is verified by the first temperature sensor 343. Subsequently, when the heated filament 5 moves to the position of the cooler 342, the cooler 342 cools the surface of the filament 5 by a temperature reduction of K, which is verified by the second temperature sensor 344. The cooled filament 5 then enters the drawing block 33 for the drawing process. During the drawing process, the temperature of the filament 5 rises by a magnitude of K, precisely offsetting the temperature reduction achieved by the cooler 342. This ensures that the core and surface temperatures of the drawn filament 5 are nearly identical, achieving temperature balance during the drawing process. This temperature balance ensures that the filament 5 experiences uniform stress and has a uniform microstructure during the drawing process, thereby effectively improving the quality of the finished filament 5.

[0042] Understandably, to ensure accurate temperature control, the wire drawing machine can be used in a constant temperature environment.

[0043] Please see Figures 1-4 The heater 341 includes a spiral heating tube 3411, and the cooler 342 includes a spiral cooling tube 3421. The heating tube 3411 and the cooling tube 3421 are coaxially sleeved around the filament 5. It can be understood that by spirally sleeved the heating tube 3411 and the cooling tube 3421 around the filament 5, uniform heating and cooling of the filament 5 can be achieved, thereby effectively ensuring the temperature control effect of the filament 5.

[0044] Please see Figures 5-8 The wire drawing mechanism 3 also includes a lubrication mechanism 35; the lubrication mechanism 35 is mounted on the frame 1 and is used to lubricate and cool the friction points between the wire drawing block 33 and the filament 5; the lubrication mechanism 35 includes a storage tank 351, a micro pump 352, a delivery pipe 353, a storage ring 354, a spiral tube 356, and a rotating ring 3571; the rotating ring 3571 is coaxially rotatably connected to the wire drawing block 33, and multiple nozzles 355 are arranged in a circumferential array on the rotating ring 3571; the storage tank 351 is disposed in the wire drawing box 31, storing... The box 351 is filled with lubricating fluid; the micro pump 352 is installed in the drawing box 31, the input end of the micro pump 352 is connected to the bottom of the storage box 351 through the delivery pipe 353, the storage ring 354 is sleeved on the rotating ring 3571, the inside of the storage ring 354 is connected to the drawing hole of the drawing block 33 through the spray hole 355, and the output end of the micro pump 352 is connected to the storage ring 354 through the delivery pipe 353; the spiral tube 356 is set on the storage ring 354 and is sleeved on the cooling tube 3421.

[0045] It should be noted that during the wire drawing process, the micro pump 352 guides the lubricant from the storage tank 351 through the delivery pipe 353 to the storage ring 354, and sprays it evenly onto the periphery of the filament 5 from multiple nozzles 355. The spraying of the lubricant not only reduces the friction between the filament 5 and the drawing block 33, but also provides a certain degree of cooling for both. Most of the used lubricant is returned to the storage tank 351, filtered, and then stored again, thus achieving the recycling of the lubricant. Furthermore, by fitting the spiral tube 356 onto the cooling tube 3421, the circulating lubricant is cooled, ensuring that the lubricant maintains good lubrication and cooling effects throughout the circulation process, guaranteeing the smooth progress of the wire drawing process.

[0046] Please see Figures 7-10The lubrication mechanism 35 also includes a control mechanism 357, which is used to drive the rotating ring 3571 to rotate. The control mechanism 357 includes a worm wheel 3575, a worm 3576, and a drive component 3577. The worm wheel 3575 is coaxially fixed to the rotating ring 3571, and the worm 3576 is mounted on the mounting plate 32, with the worm wheel 3575 and the worm 3576 meshing together. The drive component 3577 is mounted on the wire drawing box 31 and is used to drive the worm 3576 to rotate around its axis. It is understood that the drive component 3577 is prior art and is not shown in the figure, so it will not be described in detail.

[0047] It should be noted that, to further improve the uniformity of lubricant distribution between the filament 5 and the drawing block 33, the rotating ring 3571 is driven to rotate, which in turn drives the nozzle 355 to rotate, causing the lubricant to be sprayed out in a rotating manner, thereby ensuring that the lubricant is evenly distributed between the filament 5 and the drawing block 33. Simultaneously, this rotating spraying method can also flush out impurities within the drawing block 33. Specifically, the driving component 3577 drives the worm gear 3576 to rotate, which in turn drives the meshing worm wheel 3575 to rotate, thereby driving the rotating ring 3571 to rotate, ultimately achieving the rotating spraying of the lubricant.

[0048] Please see Figures 7-10 The control mechanism 357 also includes a baffle 3572 and a rubber plug 3574; the baffle 3572 is fixed to the storage tank 351 and is coaxially rotatably connected to the rotating ring 3571; the rubber plug 3574 is disposed on the baffle 3572 and the filament 5 passes through the rubber plug 3574; the baffle 3572 is provided with an outlet 3573 for discharging the lubricating fluid in the rotating ring 3571.

[0049] It should be noted that by setting the baffle 3572, the lubricant can only be discharged through the outlet 3573, thereby ensuring that the lubricant stays between the filament 5 and the drawing block 33 for a longer period of time, effectively improving the lubrication and cooling effect, while preventing excessive splashing of the lubricant. In addition, by setting the rubber stopper 3574, the surface of the filament 5 can be cleaned before drawing, thereby ensuring the drawing effect.

[0050] Please see Figures 9-12 The wire drawing mechanism 3 also includes a positioning mechanism 36, which includes a first positioning wheel 361 and a second positioning wheel 363. A mounting block is provided on the storage box 351. The first positioning wheel 361 and the second positioning wheel 363 are rotatably connected to the mounting block, and the axes of the first positioning wheel 361 and the second positioning wheel 363 are parallel. The filament 5 is arranged between the first positioning wheel 361 and the second positioning wheel 363. When the filament 5 is drawn and conveyed, it can drive the first positioning wheel 361 and the second positioning wheel 363 to rotate.

[0051] It should be noted that a positioning mechanism 36 is provided to further ensure that the filament 5 remains taut during the drawing process. During the conveying of the filament 5, the squeezing action between the first positioning wheel 361 and the second positioning wheel 363 straightens the filament 5, which may be bent. Simultaneously, the filament 5 drives the first positioning wheel 361 and the second positioning wheel 363 to rotate during conveying, thereby creating static friction between the filament 5 and the first and second positioning wheels 361 and 363, effectively reducing wear caused by sliding friction.

[0052] Example 2: The technical solution in this example differs from that in Example 1 in that: Please refer to... Figures 9-12 The positioning mechanism 36 also includes a belt drive mechanism 364; one end of the belt drive mechanism 364 is connected to the second positioning wheel 363, and the other end of the belt drive mechanism 364 is connected to the worm gear 3576; the belt drive mechanism 364 is used to transmit the rotational power of driving the second positioning wheel 363 to the worm gear 3576 so as to drive the worm gear 3576 to rotate.

[0053] It should be noted that, in order to drive the rotating ring 3571 to rotate, the original drive component 3577 can be replaced with a belt drive mechanism 364. During the conveying of the filament 5, the second positioning wheel 363 will rotate due to the conveying of the filament 5. Through the cooperation of the belt drive mechanism 364, the rotation of the second positioning wheel 363 can transmit power to the worm gear 3576, thereby driving the worm gear 3576 to rotate. After the worm gear 3576 rotates, it drives the worm wheel 3575 meshing with it to rotate, ultimately realizing the rotation of the rotating ring 3571, thereby achieving the purpose of rotating and spraying out the lubricating fluid.

[0054] Please see Figures 11-12 The positioning mechanism 36 further includes a second adjustment mechanism 365, which includes a rotating shaft 362, a second threaded adjusting rod 3652, an adjusting plate 3653, a pair of adjusting blocks 3651, and a spring 3654. A groove is provided on the mounting block, the rotating shaft 362 is slidably connected to the groove, and the second positioning wheel 363 is coaxially fixed to the rotating shaft 362. A pair of adjusting blocks 3651 are respectively sleeved on both ends of the rotating shaft 362, the second threaded adjusting rod 3652 is rotatably connected to the mounting block, the adjusting plate 3653 is disposed above the mounting block, and the second threaded adjusting rod 3652 is threadedly connected to the adjusting plate 3653. The adjusting plate 3653 and the adjusting blocks 3651 are connected by the spring 3654.

[0055] It should be noted that by rotating the second threaded adjusting rod 3652, the adjusting plate 3653 is moved in a predetermined direction. During this process, the spring 3654 applies a certain force to the adjusting block 3651, allowing the adjusting block 3651 to adjust its position accordingly. In this way, the distance between the first positioning wheel 361 and the second positioning wheel 363 can be changed, thereby indirectly adjusting the squeezing pressure of the first positioning wheel 361 and the second positioning wheel 363 on the filament 5, achieving precise control of the pressure on the filament 5.

[0056] Please see Figure 1 A first adjustment mechanism 2 is provided on one side of the wire drawing box 31 and is used to adjust the tension of the filament 5. The first adjustment mechanism 2 includes multiple guide wheels 21, adjusting wheels 22, sliders 23 and a first threaded adjusting rod 24. The multiple guide wheels 21 and adjusting wheels 22 are respectively arranged on the upper and lower sides of the filament 5. The adjusting wheel 22 is slidably connected to the frame 1 through the slider 23. The first threaded adjusting rod 24 is threadedly connected to the frame 1. The bottom of the first threaded adjusting rod 24 is rotatably connected to the slider 23. By driving the first threaded adjusting rod 24 to rotate, the position of the adjusting wheel 22 is adjusted to control the clamping force of the guide wheels 21 and adjusting wheels 22 on the filament 5.

[0057] Please see Figures 1-13 A direct-drive ultra-fine wire drawing method with cooling function, using the aforementioned direct-drive ultra-fine wire drawing machine with cooling function, specifically includes the following steps:

[0058] Step 1: Wire drawing temperature detection: Start the winding mechanism 4 to allow the filament 5 to pass through the wire drawing block 33 and start the wire drawing process; at the same time, start the third temperature sensor to detect the surface temperature K of the filament 5 after the wire drawing block 33 draws the filament, and complete the temperature test before formal wire drawing.

[0059] Step 2, drawing temperature control: Start the winding mechanism 4. Before the filament 5 enters the drawing block 33, it is first heated to the set temperature K by the heater 341. The temperature is confirmed to be within the standard by the first temperature sensor 343. Then, the filament 5 enters the cooler 342 for surface cooling by a temperature drop of K. The surface temperature is detected by the second temperature sensor 344 to ensure that it has dropped to the required range. After the heating and cooling processes are completed, the filament 5 passes through the drawing block 33 for drawing. Finally, the core and surface temperatures of the drawn filament 5 are kept close, completing the temperature control and detection work before drawing.

[0060] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0061] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0062] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A direct drive ultra-fine wire drawing machine with cooling function, comprising a rack (1), a drawing mechanism (3) and a winding mechanism (4) are arranged on the rack (1); the drawing mechanism (3) comprises a drawing box (31) with a mounting plate (32) arranged on the rack (1), and a drawing block (33) is mounted on the mounting plate (32); characterized in that, The wire drawing mechanism (3) further comprises a temperature control mechanism (34); the temperature control mechanism (34) comprises: a heater (341) installed on the wire drawing box (31) and used for heating the wire (5) so that the core and the surface of the wire (5) maintain the same temperature; a refrigerator (342) installed on the wire drawing box (31) and used for reducing the surface temperature of the wire (5); the heater (341), the refrigerator (342) and the wire drawing block (33) are sequentially arranged along the conveying direction of the wire (5); a first temperature detector (343) arranged between the heater (341) and the refrigerator (342) and used for detecting the surface temperature of the wire (5); a second temperature detector (344) arranged between the refrigerator (342) and the wire drawing block (33) and used for detecting the surface temperature of the wire (5); and a third temperature detector arranged on the wire drawing box (31) and used for detecting the surface temperature of the wire (5) after being drawn by the wire drawing block (33); the heater (341) comprises a spiral heating pipe (3411), and the refrigerator (342) comprises a spiral refrigeration pipe (3421); the heating pipe (3411) and the refrigeration pipe (3421) are coaxially sleeved on the wire (5); the wire drawing mechanism (3) further comprises a lubricating mechanism (35); the lubricating mechanism (35) is installed on the rack (1) and used for lubricating and cooling the friction position between the wire drawing block (33) and the wire (5); the lubricating mechanism (35) further comprises a control mechanism (357) and is used for driving the rotation of the rotating ring (3571); the control mechanism (357) comprises a worm gear (3575), a worm shaft (3576) and a driving member (3577); the worm gear (3575) is coaxially fixed on the rotating ring (3571), the worm shaft (3576) is installed on the mounting plate (32), and the worm gear (3575) is in meshing connection with the worm shaft (3576); the driving member (3577) is installed on the wire drawing box (31) and used for driving the rotation of the worm shaft (3576) around its axis; the control mechanism (357) further comprises a baffle (3572) and a rubber plug (3574); the baffle (3572) is fixed on the storage box (351), and the baffle (3572) is coaxially rotationally connected with the rotating ring (3571); the rubber plug (3574) is arranged on the baffle (3572), and the wire (5) passes through the rubber plug (3574); the baffle (3572) is provided with an outlet (3573) for guiding out the lubricating liquid in the rotating ring (3571); The lubricating mechanism (35) comprises a storage tank (351), a micro pump (352), a conveying pipe (353), a storage ring (354), a spiral pipe (356) and a rotating ring (3571); the rotating ring (3571) is coaxially connected to the drawing block (33); a plurality of spray holes (355) are circumferentially arranged on the rotating ring (3571); the storage tank (351) is arranged on the drawing box (31); the storage tank (351) is filled with lubricating liquid; the micro pump (352) is mounted on the drawing box (31); the input end of the micro pump (352) is connected to the bottom of the storage tank (351) through the conveying pipe (353); the storage ring (354) is sleeved on the rotating ring (3571); the inside of the storage ring (354) is communicated with the drawing hole of the drawing block (33) through the spray hole (355); the output end of the micro pump (352) is communicated with the storage ring (354) through the conveying pipe (353); the spiral pipe (356) is arranged on the storage ring (354), and the spiral pipe (356) is sleeved on the refrigeration pipe (3421); The drawing mechanism (3) further comprises a positioning mechanism (36), and the positioning mechanism (36) comprises a first positioning wheel (361) and a second positioning wheel (363); the storage tank (351) is provided with a mounting block; the first positioning wheel (361) and the second positioning wheel (363) are both rotationally connected to the mounting block; the axes of the first positioning wheel (361) and the second positioning wheel (363) are parallel; the filament (5) is arranged between the first positioning wheel (361) and the second positioning wheel (363); when the filament (5) is drawn and conveyed, the first positioning wheel (361) and the second positioning wheel (363) can be driven to rotate; The positioning mechanism (36) further comprises a belt transmission mechanism (364); one end of the belt transmission mechanism (364) is connected to the second positioning wheel (363); the other end of the belt transmission mechanism (364) is connected to the worm (3576); the belt transmission mechanism (364) is used for transmitting the rotating force for driving the second positioning wheel (363) to the worm (3576), so as to drive the worm (3576) to rotate; The positioning mechanism (36) further comprises a second adjusting mechanism (365), the second adjusting mechanism (365) comprising a rotating shaft (362), a second threaded adjusting rod (3652), an adjusting plate (3653), a pair of adjusting blocks (3651) and a spring (3654); a sliding groove is formed on the mounting block, the rotating shaft (362) is slidingly connected to the sliding groove, and the second positioning wheel (363) is coaxially fixed to the rotating shaft (362); the pair of adjusting blocks (3651) are respectively sleeved on the two ends of the rotating shaft (362), the second threaded adjusting rod (3652) is rotationally connected to the mounting block, the adjusting plate (3653) is arranged above the mounting block, the second threaded adjusting rod (3652) is threadedly connected to the adjusting plate (3653), and the adjusting plate (3653) and the adjusting block (3651) are connected by the spring (3654); The wire drawing method of the direct drive type ultra-fine wire drawing machine with cooling function comprises the following steps: Step one, wire drawing temperature detection: start the winding mechanism (4), make the fine wire (5) pass through the wire drawing block (33), and start the wire drawing work; at the same time, start the third temperature detector to detect the surface temperature K of the fine wire (5) after the wire drawing block (33) draws the fine wire (5), and complete the temperature test work before the formal wire drawing; Step two, wire drawing temperature control: start the winding mechanism (4), the fine wire (5) is heated to the set temperature K by the heater (341) before entering the wire drawing block (33), and the temperature is confirmed by the first temperature detector (343); then, the fine wire (5) enters the cooler (342) for surface cooling, and the cooling amplitude is K, which is detected by the second temperature detector (344) to ensure that the surface temperature is reduced to the required range; after the heating and cooling treatment, the fine wire (5) passes through the wire drawing block (33) for wire drawing, so that the core and surface temperatures of the fine wire (5) after wire drawing are kept close, and the temperature regulation and detection work before wire drawing is completed; By setting the temperature control mechanism (34), the fine wire (5) is heated before wire drawing, so that the core and surface temperatures of the fine wire (5) are consistent, and then the surface of the fine wire (5) is cooled to ensure that the surface temperature is consistent with the core temperature, and on this basis, the wire drawing work is carried out, the temperature balance in the wire drawing process is realized, so that the fine wire (5) is uniformly stressed in the stretching process, and the finished product quality of the fine wire is improved.

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