Non-slip refractory metal hot interpass drawing machine

Abstract

The application discloses a non-sliding refractory metal hot interpass wire drawing machine, which comprises a pay-off part, a main machine part and a take-up part; a pay-off assembly is arranged at the front end of the pay-off part; the main machine part is arranged on one side of the pay-off part; and the take-up part is arranged on the side, away from the pay-off part, of the main machine part; the technical key points are as follows: the fluctuation of the metal wire caused by internal and external factors during the operation of each drawing unit can be detected separately, the wire speed of each drawing unit is adjusted according to the fluctuation, the speed rebalancing and force rebalancing between the drawing units are realized at the first time, the metal wire cannot produce sliding friction during the drawing process, constant tension, constant wire speed, non-sliding and non-friction wire stretching are realized, the manufacturing defects of the traditional wire drawing machine are avoided, and therefore, the product quality is ensured, the yield is improved, the enterprise benefit is improved, meanwhile, the metal wires of all the drawing units are guided into the same heater through the guide wheels, the energy consumed by heating is greatly saved, and the non-sliding refractory metal hot interpass wire drawing machine has a good application prospect.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of wire drawing, and particularly relates to a non-sliding refractory metal hot interpass wire drawing machine. BACKGROUND

[0002] The wire drawing machine refers to a device capable of continuous drawing, mechanical and electrical speed balance matching, and there are various types of wire drawing machines, and the most common one is a capstan type wire drawing machine.

[0003] The refractory metal generally refers to a metal (tungsten, tantalum, molybdenum, niobium, hafnium, chromium, vanadium, zirconium, titanium, etc.) with a melting point higher than 1650 DEG C, and the metal with a melting point higher than the melting point of zirconium (1852 DEG C) is also called refractory metal. The alloy formed by taking these metals as a matrix and adding other elements is called refractory metal alloy.

[0004] The refractory metal or refractory metal alloy needs to be heated in front of the die eye of the wire drawing machine, and then drawn to the required diameter step by step.

[0005] However, it is found through research that the existing capstan type wire drawing machine has certain disadvantages in use.

[0006] When the metal wire of each drawing unit of the traditional capstan type wire drawing machine fluctuates and loses balance, since the traction capstan is an integral structure, all the drawing units are driven by one motor and the wire speed of the single drawing unit cannot be adjusted, and only the metal wire sliding (commonly known as skidding) on the surface of the capstan can be relied on to achieve rebalance, which is easy to form manufacturing defects such as uneven breaking force of the metal wire, surface scratch, bamboo joint and spot, and seriously affects the product quality and restricts the application of the product.

[0007] When the sliding of the metal wire on the surface of the capstan is not enough to achieve rebalance, plastic deformation or even wire breakage occurs, thereby reducing the yield of the product. SUMMARY

[0008] In order to overcome the shortcomings of the prior art, the application provides a non-sliding refractory metal hot interpass wire drawing machine, which is provided with a tension device capable of individually detecting the fluctuation of the metal wire caused by internal and external factors during the operation of each drawing unit, and adjusting the wire speed of each drawing unit according to the fluctuation, so that the speed rebalance and stress rebalance between the drawing units are achieved at the first time, the metal wire does not produce sliding friction during the drawing process, constant tension, constant wire speed, non-sliding and non-friction wire drawing are achieved, the manufacturing defects of the traditional wire drawing machine are avoided, and the product quality, yield and enterprise benefit are ensured, thereby having a good application prospect.

[0009] The technical scheme adopted by the application to solve the technical problems is as follows:

[0010] A no-slip refractory metal hot interpass wire drawing machine, comprising a pay-off part, a main machine part and a take-up part;

[0011] The front end of the pay-off part is provided with a pay-off assembly;

[0012] The main machine part is located on one side of the pay-off part;

[0013] The take-up part is arranged on the side of the main machine part away from the pay-off part, the front end of the take-up part is provided with a take-up assembly, and the upper end surface of the take-up part is provided with a control cabinet for controlling the operation of the pay-off part, the main machine part and the take-up part;

[0014] The front end of the main machine part is provided with a tension device capable of independently adjusting the linear speed of the drawing unit and detecting the tension fluctuation in the drawing process, and the tension device is connected with a motion controller (PLC) in the control cabinet.

[0015] The application discloses a no-slip refractory metal hot interpass wire drawing machine, which is provided with a tension device capable of independently detecting the fluctuation of the metal wire caused by internal and external factors during the operation of each drawing unit, and adjusting the linear speed of each drawing unit according to the fluctuation, so that the speed and force rebalancing between the drawing units is realized at the first time, the metal wire does not produce sliding friction during the drawing process, the constant tension, constant linear speed, no-slip and no-friction wire stretching are realized, the manufacturing defects of the traditional wire drawing machine are avoided, and the product quality, the yield and the enterprise benefit are improved, so that the application has a good application prospect.

[0016] Preferably, an electric cabinet is arranged below the main machine part, a graphite milk filling assembly is arranged at the front end of the main machine part, and a layered working state warning lamp is fixedly installed on the upper end surface of the control cabinet.

[0017] Preferably, the pay-off assembly comprises a pay-off I-beam, a first guide wheel, a first guide roller and a second guide wheel.

[0018] One end of the pay-off I-beam is connected with the output end of a motor assembly in the pay-off part;

[0019] One end of the first guide wheel is rotatably installed at the front end of the pay-off part through a bearing, and the first guide wheel is arranged on the upper side of the pay-off I-beam;

[0020] The first guide roller is arranged on one side of the pay-off I-beam;

[0021] The second guide wheel is rotatably installed on the pay-off part through a bearing;

[0022] The front end surface of the pay-off part is provided with a first tension controller, the first tension controller is provided with a first tension rod, and the first guide roller is rotatably installed on the first tension rod.

[0023] The wire feeding work reel is used to feed the metal wire, and the fed metal wire passes through the first guide wheel, the first guide roller and the second guide wheel in sequence and then enters the third guide wheel.

[0024] Preferably, the front end surface of the main unit is provided with a third guide wheel, and the graphite milk filling assembly is located at one side of the third guide wheel.

[0025] Preferably, the graphite milk filling assembly comprises a graphite milk box and a centralized heating system.

[0026] The graphite milk box is arranged at the front end of the main unit.

[0027] The centralized heating system is installed on the main unit, and the centralized heating system is located at one side of the graphite milk box.

[0028] The third guide wheel guides the metal wire into the graphite milk box, the surface of the metal wire is coated with graphite milk when passing through, and then the metal wire passes through the centralized heating system, the metal wire is annealed and softened in the heating area, and the graphite milk is sintered onto the surface of the metal wire to play a protective function.

[0029] Preferably, the centralized heating system comprises a front-rear sliding device and a heater.

[0030] The front-rear sliding device is installed on the main unit.

[0031] The heater is slidingly installed on the front-rear sliding device.

[0032] The front-rear sliding device adopts an existing front-rear moving structure, such as a sliding block, a sliding rail, etc.

[0033] The heater is arranged on the front-rear sliding device, which is pushed away from the working area during manual threading operation to facilitate operation, and is restored to the heating position after the threading operation is completed.

[0034] Preferably, the tension device comprises a fourth guide wheel for guiding the metal wire to the graphite milk box, a die holder, a traction assembly, a tension control assembly for detecting the tension of the metal wire, and a sixth guide wheel and a seventh guide wheel for guiding the metal wire to the tension control assembly.

[0035] The fourth guide wheel is rotatably installed on the main unit by a bearing.

[0036] The die holder is installed on the front end surface of the main unit, and the die holder is located at one side of the graphite milk box.

[0037] The traction assembly is installed on the main unit and is arranged at one side of the die holder.

[0038] The fifth guide wheel is rotatably installed on the main unit by a bearing.

[0039] The tension control assembly for detecting the tension of the metal wire is arranged on the lower side of the fourth guide wheel;

[0040] The sixth guide wheel is located on the side of the seventh guide wheel, and the sixth guide wheel and the seventh guide wheel are both rotatably installed on the main machine part through bearings;

[0041] The die frame is provided with N groups of die holes, and a collection box is arranged below the die frame; the number of the die holes, the fourth guide wheel, the fifth guide wheel, the sixth guide wheel and the seventh guide wheel is equal.

[0042] The fourth guide wheel guides the metal wire into the graphite cream box, the surface of the metal wire is adhered with graphite cream when passing through, then passes through the concentrated heating system and enters the die hole on the die frame, the metal wire is compressed to be thinner when passing through the die hole, the graphite cream on the surface of the metal wire plays a lubricating function, the excess graphite cream on the surface of the metal wire is stripped and falls into the collection box below the die frame when passing through the die hole, the metal wire passes through the fifth guide wheel and is guided into the traction assembly, is guided by the sixth guide wheel and the seventh guide wheel after traction, and then contacts the second guide wheel, is guided by the second guide wheel to the fourth guide wheel of the next drawing unit, and is drawn in the next drawing unit.

[0043] Preferably, the tension control assembly comprises N-1 groups of second tension controllers and second guide wheels;

[0044] The N-1 groups of second tension controllers are arranged in the box on the front end face of the main machine part, and the second tension controllers are provided with second tension rods;

[0045] The number of the second guide wheels is N-1 groups, and the second guide wheels are fixedly connected with the second tension rods.

[0046] Preferably, the traction assembly comprises a traction wheel set and a driving motor;

[0047] The traction wheel set is installed on the main machine part, and the traction wheel set comprises N groups of traction wheels arranged on N groups of traction shafts;

[0048] The number of the driving motors is N groups, and the driving motors drive the traction wheels to rotate through a transmission assembly;

[0049] Each group of traction wheels, second guide wheels, die holes, fourth guide wheels, fifth guide wheels, sixth guide wheels and seventh guide wheels constitute a drawing unit.

[0050] The driving motor can individually adjust the speed of the traction wheel set.

[0051] The traction wheel set comprises a base, a flange and a transmission shaft;

[0052] The base is fixedly connected with the shell of the wire stretching machine;

[0053] The flange is fixedly connected with the base;

[0054] The number of transmission shafts is several groups, and the transmission shafts are connected with the output shaft of the driving motor through a transmission assembly.

[0055] The diameters of the several groups of transmission shafts are increased in sequence, the transmission shafts are internally provided with mounting ports, the transmission shafts are rotationally connected through bearings in sequence, the lengths of the transmission shafts are sequentially shortened from inside to outside, and the several groups of transmission shafts are concentrically arranged.

[0056] The transmission shafts independently rotate and do not interfere with each other, and in use, a single driving motor drives a single transmission shaft to rotate through a belt transmission assembly, so as to drive the traction wheel to rotate alone.

[0057] Preferably, the transmission assembly adopts a belt transmission assembly, the output shaft of the servo motor is connected with one end of the transmission shaft through the belt transmission assembly, and the traction wheel is fixedly installed at the other end of the transmission shaft. Preferably, the take-up assembly comprises a metering wheel and a take-up I-beam.

[0058] The metering wheel is installed on the take-up portion through a bearing.

[0059] The take-up I-beam is installed on the main shaft of the take-up driving motor arranged in the take-up portion, and the take-up portion is internally provided with a movement module for driving the take-up driving motor to move forward and backward.

[0060] The metal wire after being pulled by the traction wheel group in the Nth drawing unit is wound to the take-up I-beam after passing through the metering wheel.

[0061] The movement module can change the position of the take-up I-beam, so that the metal wire can be wound more uniformly.

[0062] The inside of the control cabinet is provided with a movement controller (PLC), and the movement controller is connected with all the motors and the tension controller in communication through a communication cable.

[0063] Due to the influence of factors such as bus material defects, die hole diameter errors, die wear, guide wheel or traction wheel wear, and heater temperature difference, such drawing balance can be destroyed at any time. Under the traction of the traction wheel group, the metal wire is compressed through the die hole, and at the same time, the tension rod is always in a stressed state. When the metal wire of any one drawing unit is affected by internal and external factors and fluctuates, the tension rod of the unit will immediately fluctuate, and the tension controller at the bottom of the tension rod will immediately feedback to the movement controller. The movement controller re-matches the motors in each drawing unit, take-up assembly and pay-off assembly to ensure that each drawing unit is always in a balanced state.

[0064] In summary, the present application has at least one of the following beneficial technical effects:

[0065] The application discloses a non-sliding refractory metal hot interpass wire drawing machine which is provided with a tension device, the tension device can detect the fluctuation of the metal wire caused by internal and external factors during the operation of each drawing unit, and the line speed of each drawing unit is adjusted according to the fluctuation, so that the speed rebalance and force rebalance between the drawing units are realized at the first time, the metal wire cannot produce sliding friction during the drawing process, constant tension, constant line speed, non-sliding and non-friction wire stretching are realized, the manufacturing defects of the traditional wire drawing machine are avoided, and the product quality, the finished product rate and the enterprise benefit are ensured, so that the application has a good application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0066] Figure 1 It is the overall structure schematic diagram of the application;

[0067] Figure 2 It is the top view structure diagram of the application;

[0068] Figure 3 It is the partial structure diagram of the traction assembly in the application;

[0069] Figure 4 It is the partial structure diagram of the traction wheel group in the application;

[0070] Figure 5 It is the sectional structure schematic diagram of the traction wheel group in the application.

[0071] Fig. 1 is a wire feeding part; Fig. 2 is a main machine part; Fig. 3 is a wire collecting part; Fig. 4 is a control cabinet; Fig. 5 is a layered working state warning lamp; Fig. 6 is a wire feeding spool; Fig. 7 is a first guide wheel; Fig. 8 is a first guide roller; Fig. 9 is a second guide wheel; Fig. 10 is a first tension controller; Fig. 11 is a graphite milk box; Fig. 12 is a heater; Fig. 13 is a fourth guide wheel; Fig. 14 is a fifth guide wheel; Fig. 15 is a traction assembly; Fig. 16 is a sixth guide wheel; Fig. 17 is a seventh guide wheel; Fig. 18 is a die eye frame; Fig. 19 is a collecting box; Fig. 20 is a second tension controller; Fig. 21 is a second guide roller; Fig. 22 is a driving motor; Fig. 23 is a wire collecting spool; Fig. 24 is a metering wheel; and Fig. 25 is a third guide wheel. DETAILED DESCRIPTION

[0072] This application provides a non-slip hot-drawing machine for refractory metals, solving the problem of existing tower wheel type wire drawing machines where, due to the integrated structure of the traction tower wheel and the single motor driving all drawing units, the linear speed of individual drawing units cannot be adjusted. Rebalancing relies on the metal wire slipping on the tower wheel surface (commonly known as slippage), which easily leads to uneven wire breaking force, surface scratches, bamboo-like joints, spots, and other manufacturing defects, severely affecting product quality and restricting product application. Furthermore, when the slippage on the tower wheel surface is insufficient to achieve rebalancing, plastic deformation or even wire breakage can occur, resulting in… To address the issue of reduced product yield, this invention, a non-slip refractory metal hot wire drawing machine, incorporates a tension device. This device can individually detect fluctuations in the metal wire caused by internal and external factors during the operation of each drawing unit, and adjust the linear speed of each drawing unit accordingly. This allows for immediate speed and force rebalancing among the drawing units, preventing sliding friction during the drawing process. It achieves constant tension, constant linear speed, and frictionless wire drawing, avoiding manufacturing defects of traditional wire drawing machines. This ensures product quality, improves yield, and enhances enterprise efficiency, demonstrating promising application prospects.

[0073] A non-slip hot wire drawing machine for refractory metals, such as Figures 1-5 As shown, it includes a wire feeding section 1, a main unit section 2, and a wire take-up section 3;

[0074] A wire-feeding assembly is installed at the front end of the wire-feeding section 1;

[0075] The main unit 2 is located on one side of the wire feeding unit 1;

[0076] The take-up section 3 is located on the side of the main unit 2 away from the pay-off section 1. A take-up assembly is installed at the front end of the take-up section 3. A control cabinet 4 for controlling the operation of the pay-off section 1, the main unit 2 and the take-up section 3 is provided on the upper surface of the take-up section 3.

[0077] The front end of the main unit 2 is equipped with a tension device that can independently adjust the linear speed of the drawing unit and detect tension fluctuations during the drawing process. The tension device is connected to the control cabinet 4.

[0078] This invention discloses a non-slip hot wire drawing machine for refractory metals, which is equipped with a tension device. The tension device can individually detect the fluctuations in the metal wire caused by internal and external factors during the operation of each drawing unit, and adjust the linear speed of each drawing unit according to the fluctuations. This allows for the immediate rebalancing of speed and force among the drawing units, preventing sliding friction in the metal wire during the drawing process. It achieves constant tension, constant linear speed, and non-slip, frictionless wire drawing, avoiding the manufacturing defects of traditional wire drawing machines. This ensures product quality, improves yield, and enhances enterprise efficiency, showing promising application prospects.

[0079] The host part 2 is provided below with an electrical cabinet, and the front end of the host part 2 is provided with a graphite milk filling assembly; and the upper end face of the control cabinet 4 is fixedly installed with a layered working state warning light 5.

[0080] The wire feeding assembly comprises a wire feeding I-beam 6, a first guide wheel 7, a first guide pulley 8 and a second guide wheel 9;

[0081] One end of the wire feeding I-beam 6 is connected with the output end of a motor assembly inside the wire feeding part 1;

[0082] One end of the first guide wheel 7 is rotatably installed at the front end of the wire feeding part 1 through a bearing, and is arranged above one side of the wire feeding I-beam 6;

[0083] The first guide pulley 8 is arranged at one side of the wire feeding I-beam 6;

[0084] The second guide wheel 9 is rotatably installed on the wire feeding part 1 through a bearing;

[0085] The front end face of the wire feeding part 1 is provided with a first tension controller 10, the first tension controller 10 is provided with a first tension rod, and the first guide pulley 8 is rotatably installed on the first tension rod.

[0086] In use, the wire feeding I-beam 6 feeds out the metal wire, and the fed-out metal wire passes through the first guide wheel 7, the first guide pulley 8 and the second guide wheel 9 in sequence, and then enters the third guide wheel 25 after being guided.

[0087] The front end face of the host part 2 is provided with the third guide wheel 25, and the graphite milk filling assembly is located at one side of the third guide wheel 25.

[0088] The graphite milk filling assembly comprises a graphite milk box 11 and a centralized heating system;

[0089] The graphite milk box 11 is arranged at the front end of the host part 2;

[0090] The centralized heating system is installed on the host part 2, and the centralized heating system is located at one side of the graphite milk box 11.

[0091] The centralized heating system can use a hydrogen-oxygen flame, a resistance wire, an infrared tube, an electric heating tube and the like to centrally heat the metal wire, and the heating system is independently controlled.

[0092] The third guide wheel 25 guides the metal wire into the graphite milk box 11, the metal wire sticks with the graphite milk on the surface when passing through, and then passes through the centralized heating system, so that the metal wire has an annealing softening function in the heating area, and the graphite milk is sintered to the surface of the metal wire to have a protection function.

[0093] The centralized heating system comprises a front-rear sliding device and a heater 12;

[0094] The front-rear sliding device is installed on the main machine part 2;

[0095] The heater 12 is slidingly installed on the front-rear sliding device.

[0096] The front-rear sliding device adopts an existing front-rear moving structure, such as a sliding block, a sliding rail, etc.

[0097] The heater 12 is arranged on the front-rear sliding device, which is convenient for operation when the manual threading operation is performed, and is restored to the heating position after the threading operation is completed.

[0098] Meanwhile, the metal wires of all the drawing units are guided into the same heater 12 through the guide wheels, which greatly saves the energy consumed by heating.

[0099] The tension device comprises a fourth guide wheel 13 for guiding the metal wire to the graphite cream box 11, a die frame 18, a traction assembly 15, a tension control assembly for detecting the tension of the metal wire, and a sixth guide wheel 16 and a seventh guide wheel 17 for guiding the metal wire to the tension control assembly;

[0100] The fourth guide wheel 13 is rotatably installed on the main machine part 2 through a bearing;

[0101] The die frame 18 is installed on the front end face of the main machine part 2, and the die frame 18 is located on one side of the graphite cream box 11;

[0102] The traction assembly 15 is installed on the main machine part 2, and is arranged on one side of the die frame 18;

[0103] The fifth guide wheel 14 is rotatably installed on the main machine part 2 through a bearing;

[0104] The tension control assembly for detecting the tension of the metal wire is arranged on one side below the fourth guide wheel 13;

[0105] The sixth guide wheel 16 is located on one side of the seventh guide wheel 17, and the sixth guide wheel 16 and the seventh guide wheel 17 are rotatably installed on the main machine part 2 through bearings;

[0106] Among them, the die frame 18 is provided with N groups of dies, and a collection box 19 is arranged below the die frame 18; the number of dies, the fourth guide wheel 13, the fifth guide wheel 14, the sixth guide wheel 16 and the seventh guide wheel 17 are equal.

[0107] The fourth guide wheel 13 guides the metal wire into the graphite milk box 11, the surface of the metal wire sticks to the graphite milk, then passes through the concentrated heating system, and then enters the die hole on the die hole frame 18. The metal wire is compressed and thinned after passing through the die hole. The graphite milk on the surface of the metal wire plays a lubricating function. The excess graphite milk on the surface of the metal wire is stripped and falls into the collection box 19 below the die hole frame 18 when passing through the die hole. The metal wire passes through the fifth guide wheel 14 and is guided into the traction assembly 15. After traction, the sixth guide wheel 16 and the seventh guide wheel 17 are guided to contact the second guide wheel 21. After passing through the second guide wheel 21, it is guided into the fourth guide wheel 13 of the next drawing unit and enters the next drawing unit for drawing.

[0108] The tension control assembly includes N-1 sets of second tension controllers 20 and second guide wheels 21.

[0109] The N-1 sets of second tension controllers 20 are arranged in the box at the front end of the main machine part 2. The second tension controller 20 is provided with a second tension rod.

[0110] The number of second guide wheels 21 is N-1 sets. The second guide wheel 21 is fixedly connected with the second tension rod.

[0111] The traction assembly 15 includes a traction wheel set and a driving motor 22.

[0112] The traction wheel set is installed on the main machine part 2. The traction wheel set includes N sets of traction wheels arranged on N sets of traction shafts.

[0113] The number of driving motors 22 is N sets. The driving motor 22 drives the traction wheel to rotate through a transmission assembly.

[0114] Each set of traction wheels, the second guide wheel 21, the die hole, the fourth guide wheel 13, the fifth guide wheel 14, the sixth guide wheel 16 and the seventh guide wheel 17 constitute a drawing unit.

[0115] The N sets of traction wheels are coaxial and asynchronous. The transmission assembly adopts a belt transmission assembly. The driving motor 22 is independently controlled to independently adjust the speed of the traction wheel.

[0116] The traction wheel set further includes N sets of wire dividing wheels.

[0117] The driving motor 22 can independently adjust the speed of the traction wheel set.

[0118] The take-up assembly includes a metering wheel 24 and a take-up I-beam 23.

[0119] The metering wheel 24 is installed on the take-up part 3 through a bearing.

[0120] The take-up I-beam 23 is installed on the main shaft of the take-up driving motor arranged inside the take-up part 3. The inside of the take-up part 3 is provided with a movement module for driving the take-up driving motor to move forward and backward.

[0121] The metal wire after being pulled by the traction wheel group in the Nth drawing unit passes through the metering wheel 24 and is wound onto the take-up spool 23.

[0122] The moving module can change the position of the take-up spool 23, so that it can wind the metal wire more uniformly.

[0123] The take-up spool 23 and the pay-off spool 6 operate synchronously.

[0124] The motion controller is arranged in the control cabinet 4 and is connected in communication with all the motors and the tension controller through a communication cable.

[0125] The motors and motor assemblies inside the entire non-slip refractory metal hot interpass drawing machine are all servo motors.

[0126] In the patent, n is the number of drawing passes of the machine and is an integer greater than 1, and n can be designed arbitrarily according to the refractory metal wire drawing process requirements or the design planning of the machine.

[0127] During the drawing operation, the machine is started after the input wire diameter, output wire diameter, drawing pass number, and diameter of each drawing die are input through the man-machine interface according to the requirements of the control program. Since the wire diameter is compressed through the die with each pass, the wire speed of each next drawing unit is increased, and the wire speed of each unit is matched and balanced through the control program calculation.

[0128] Due to factors such as busbar material defects, die hole diameter errors, die wear, guide wheel or traction wheel wear, and heater 12 temperature difference, this balance may be destroyed at any time. Under the traction of the traction wheel group, the metal wire is compressed through the die, and the tension rod is also always in a stressed state. When the metal wire of any one drawing unit is affected by internal and external factors and fluctuates, the tension rod will immediately fluctuate, and the tension controller at the bottom of the tension rod will immediately feedback to the motion controller. The motion controller recalibrates the motors in each drawing unit, take-up assembly, and pay-off assembly to ensure that each drawing unit is always in a balanced state.

[0129] It should be noted that the non-slip refractory metal hot interpass drawing machine of the present application is used, the pay-off spool 6 on the pay-off part 1 pays out the metal wire, which enters the tension device in turn through the first guide wheel 7, the first guide wheel 8, the second guide wheel 9, and the third guide wheel 25.

[0130] In the tension device, the fourth guide wheel 13 guides the metal wire into the graphite cream box 11, the surface of the metal wire sticks with the graphite cream, then passes through the concentrated heating system and enters the die hole on the die hole frame 18, the metal wire is compressed and becomes thinner after passing through the die hole, the graphite cream on the surface of the metal wire plays a lubricating function, the excess graphite cream on the surface of the metal wire is stripped and falls into the collection box 19 below the die hole frame 18 when passing through the die hole, the metal wire passes through the fifth guide wheel 14 and is guided into the traction assembly 15, after traction, the metal wire is guided by the sixth guide wheel 16 and the seventh guide wheel 17 and then contacts the second guide wheel 21, is guided by the second guide wheel 21 into the fourth guide wheel 13 of the next drawing unit, and is drawn in the next drawing unit until the metal wire after being drawn by the traction wheel group in the Nth drawing unit is wound on the take-up I-beam 23 after passing through the metering wheel 24;

[0131] The present application adopts coaxial asynchronous traction wheel group traction, each traction wheel is independently driven by a servo drive motor 22, each servo drive motor 22, the pay-off drive motor, the take-up drive motor, the wire arranging drive motor, and each tension controller are connected with the motion controller through a communication cable for bidirectional communication.

[0132] When fluctuation occurs in any one or any number of drawing units, the force on the tension rod of the same unit immediately changes, the tension controller immediately feeds back a signal to the motion controller, the motion controller calculates and issues a correction instruction to each drive motor to achieve speed rebalance and force rebalance between the drawing units. The data processing speed of the high-performance motion controller is extremely fast, and the above process is almost completed at the same time, the metal wire does not slide on the surface of the traction wheel, the constant tension, constant linear speed, no sliding and no friction wire stretching are realized, the manufacturing defects of the traditional wire drawing machine are avoided, and the product quality, the yield and the enterprise benefit are improved.

[0133] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the present application, and are not limitations on the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A non-slip refractory metal hot interpass drawing machine characterized by, The application relates to a wire drawing machine, which comprises the following parts: a wire drawing part (1) with a wire drawing assembly installed at the front end; a main part (2) located at one side of the wire drawing part (1); a wire collecting part (3) located at the side, away from the wire drawing part (1), of the main part (2) and with a wire collecting assembly installed at the front end, wherein an upper end surface of the wire collecting part (3) is provided with a control cabinet (4) for controlling the operation of the wire drawing part (1), the main part (2) and the wire collecting part (3); wherein a tension device capable of separately adjusting the wire speed of a drawing unit and detecting the tension fluctuation in the drawing process is arranged at the front end of the main part (2), and the tension device is connected with a motion controller in the control cabinet (4); an electric appliance cabinet is arranged below the main part (2), a graphite milk filling assembly is arranged at the front end of the main part (2), and a layered working state warning lamp (5) is fixedly installed on the upper end surface of the control cabinet (4); the graphite milk filling assembly comprises: a graphite milk box (11) arranged at the front end of the main part (2); a centralized heating system installed on the main part (2) and located at one side of the graphite milk box (11); the tension device comprises: a fourth guide wheel (13) for guiding the metal wire to the graphite milk box (11), which is rotatably installed on the main part (2) through a bearing; an eyelet frame (18) installed on the front end surface of the main part (2) and located at one side of the graphite milk box (11); a traction assembly (15) installed on the main part (2) and arranged at one side of the eyelet frame (18); a fifth guide wheel (14) for guiding the metal wire to the traction assembly (15), which is rotatably installed on the main part (2) through a bearing; a tension control assembly for detecting the tension of the metal wire, which is arranged below one side of the fourth guide wheel (13); a sixth guide wheel (16) and a seventh guide wheel (17) for guiding the metal wire to the tension control assembly, wherein the sixth guide wheel (16) is located at one side of the seventh guide wheel (17), and the sixth guide wheel (16) and the seventh guide wheel (17) are rotatably installed on the main part (2) through bearings; wherein N groups of eyelets are arranged on the eyelet frame (18), and a collection box (19) is arranged below the eyelet frame (18); the number of the eyelets, the fourth guide wheel (13), the fifth guide wheel (14), the sixth guide wheel (16) and the seventh guide wheel (17) is equal; the tension control assembly comprises: N-1 groups of second tension controllers (20) arranged in the box at the front end surface of the main part (2), and a second tension rod is arranged on each second tension controller (20); N-1 groups of second guide wheels (21) fixedly connected with the second tension rods.

2. A hot intermediate drawing mill for refractory metals without sliding as claimed in claim 1, characterized in that: the wire drawing assembly comprises: a wire drawing I-shaped wheel (6) with one end connected with the output end of a motor assembly in the wire drawing part (1); a first guide wheel (7) rotatably installed at the front end of the wire drawing part (1) through a bearing and arranged at the upper side of the wire drawing I-shaped wheel (6); a first guide wheel (8) arranged at one side of the wire drawing I-shaped wheel (6). The second guide wheel (9) is rotatably installed on the pay-off part (1) through a bearing; The front end surface of the pay-off part (1) is provided with a first tension controller (10), the first tension controller (10) is provided with a first tension rod, and the first guide wheel (8) is rotatably installed on the first tension rod.

3. A hot intermediate drawing mill for refractory metals without sliding as claimed in claim 2, characterized in that: The front end surface of the main machine part (2) is provided with a third guide wheel (25), and the graphite milk filling assembly is located on one side of the third guide wheel (25).

4. A hot intermediate drawing mill for refractory metals free of sliding parts as claimed in claim 3, characterized in that: The centralized heating system comprises: The front and rear sliding device is installed on the main machine part (2); The heater (12) is slidably installed on the front and rear sliding device.

5. A hot intermediate drawing mill for refractory metals free of sliding parts as claimed in claim 4, characterized in that: The traction assembly (15) comprises: A traction wheel group is installed on the main machine part (2), which comprises N groups of traction wheels arranged on N groups of traction shafts; The driving motor (22) is N groups, which drives the traction shaft to rotate through the transmission assembly; Each group of traction wheels, the second guide wheel (21), the die hole, the fourth guide wheel (13), the fifth guide wheel (14), the sixth guide wheel (16) and the seventh guide wheel (17) constitute a drawing unit.

6. A hot intermediate drawing mill for refractory metals free of sliding parts as claimed in claim 5, characterized in that: The take-up assembly comprises: The metering wheel (24) is installed on the take-up part (3) through a bearing; The take-up spool (23) is installed on the main shaft of the take-up drive motor arranged inside the take-up part (3), and the inside of the take-up part (3) is provided with a moving module for driving the take-up drive motor to move forward and backward.

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