Large drawing machine annealing device and use method thereof

Abstract

The present invention belongs to the technical field of wire and cable processing equipment, and in particular, relates to a large drawing machine annealing device and a method for using the same. The large drawing machine annealing device comprises a frame, a mounting groove is provided on the front side of the frame, and a protective cover is installed on the front side of the mounting groove, and a plurality of first guide rollers and a plurality of heat dissipation rollers are vertically installed on the inner wall of the rear side of the mounting groove. The present invention is provided with a preheating component, and during the annealing of the wire, the wire heated by the induction heater can be gradually wound onto the second winding roller, and then the residual heat in the wire can be transferred to the metal heat conducting plate through the metal heat conducting strip on the second winding roller, and then the metal heat conducting plate can transfer the heat to the metal heat conducting strip connected thereto, so as to preheat the wire to be annealed by using the metal heat conducting strip on the first winding roller, thereby improving the efficiency of subsequent wire annealing, and also improving the utilization rate of the heat generated by the induction heater, saving heat energy.

Description

Technical Field

[0001] The invention belongs to the technical field of wire and cable processing equipment, and in particular relates to a large drawing machine annealing device and a use method thereof. Background Art

[0002] The wire drawing machine is mainly used to stretch thicker metal wires (such as copper, aluminum, etc.) to reduce their diameter. The annealing device is an important auxiliary equipment of the wire drawing machine. Annealing is a metal heat treatment process that can eliminate the residual stress generated by the metal wire during cold processing (such as stretching), improve the metal's organizational structure, reduce hardness, and increase the metal's plasticity and toughness. In the production process of the wire drawing machine, the annealing device is generally located after or in the middle of the wire drawing process to ensure that the wire can restore certain properties after stretching, so as to facilitate subsequent processing.

[0003] In the process of annealing metal wires in the existing annealing device, as the metal wires are gradually moved out of the annealing device, the residual heat in the metal wires is not well utilized and is wasted as the metal wires are gradually cooled, thereby causing heat loss.

[0004] Therefore, it is necessary to invent a large drawing machine annealing device and a method of using the same to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a large drawing machine annealing device and a method of using the same to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A large drawing machine annealing device comprises a frame, a mounting groove is arranged on the front side of the frame, and a protective cover is arranged on the front side of the mounting groove, a plurality of first guide rollers and a plurality of heat dissipation rollers are vertically arranged on the inner wall of the rear side of the mounting groove, a wire inlet hole and a wire outlet hole are respectively opened on the groove walls on both sides of the mounting groove, an annealing box is arranged on the groove wall at the bottom of the mounting groove, a sealing cover is arranged on the front side of the annealing box, a wire pressing assembly is arranged on the top of the annealing box, and the wire pressing assembly is symmetrically arranged between two heat dissipation rollers, a preheating assembly is arranged in the annealing box, and the preheating assembly A second guide roller is provided on one side of the component, and the second guide roller is vertically installed on the inner wall of the rear side of the annealing box. An induction heater is provided at the bottom of the second guide roller, and the induction heater is installed on the inner wall of the rear side of the annealing box. A fixed shaft is provided at the bottom of the induction heater, and the fixed shaft is vertically installed on the inner wall of the rear side of the annealing box. A first connecting ball is fixedly sleeved on the fixed shaft, and a first guide wheel is movably sleeved on the first connecting ball. A tensioning component is provided on the side of the fixed shaft close to the wire outlet hole, and two threading holes are penetrated through the top of the annealing box.

[0008] Furthermore, the wire crimping assembly includes a rotating shaft, the rear end of the rotating shaft is transmission-connected to a driving motor, the driving motor is installed on the rear inner wall of the annealing box, driving wheels are provided on both sides of the rotating shaft, and the two driving wheels are distributed front and back, both ends of the driving wheels are vertically rotatably connected to fixed rods, the fixed rods are fixedly connected to the surface of the rotating shaft, and the vertical distance between the two driving wheels is greater than the distance between two adjacent heat dissipation rollers on both sides of the rotating shaft.

[0009] Furthermore, the preheating assembly includes a mounting shaft, which is vertically fixedly connected to the inner wall of the rear side of the annealing box, and a first winding roller and a second winding roller are rotatably sleeved on the mounting shaft, the first winding roller is located at the front side of the second winding roller, and the diameter of the first winding roller is larger than the diameter of the second winding roller, and the surfaces of the first winding roller and the second winding roller are both installed with multiple metal thermally conductive strips along the length direction of the mounting shaft, and the metal thermally conductive strips are kept flush with the surfaces of the first winding roller and the second winding roller, a coaxial metal thermally conductive disk is fixedly connected to the rear side of the first winding roller, the front side of the metal thermally conductive disk is fixedly connected to the metal thermally conductive strip on the first winding roller, the metal thermally conductive disk is rotatably sleeved on the second winding roller, and the inner side of the metal thermally conductive disk is in contact with the surfaces of multiple metal thermally conductive strips on the second winding roller.

[0010] Furthermore, the stretching assembly includes a movable shaft, and the movable shaft is perpendicular to the inner wall of the rear side of the annealing box, a U-shaped plate is fixedly connected between the two ends of the movable shaft, and the opening of the U-shaped plate is opposite to the fixed shaft, a second connecting ball is fixedly sleeved on the movable shaft, and a second guide wheel is movably sleeved on the second connecting ball, the first guide wheel is closer to the front side of the annealing box than the second guide wheel, and the surfaces of the first guide wheel and the second guide wheel are both provided with annular grooves, a tension sensor is installed on the side of the U-shaped plate away from the fixed shaft, and an adjusting rod is vertically rotatably connected to the side of the tension sensor away from the U-shaped plate, the adjusting rod vertically rotates and penetrates and is inserted into the groove wall on the side of the installation groove close to the wire outlet hole, and limiting rods are provided on the front and rear sides of the adjusting rod, one end of the limiting rod is fixedly connected to the U-shaped plate, and the other end of the limiting rod vertically slides and penetrates and is inserted into the groove wall on the side of the installation groove close to the wire outlet hole.

[0011] Furthermore, a pressure plate is hinged on the top of the U-shaped plate, a scraper is arranged in parallel on the side of the pressure plate close to the movable axis, two connecting rods are arranged in parallel on the rear sides of the pressure plate and the scraper, the two ends of the two connecting rods are respectively rotatably connected to the pressure plate and the scraper, a plurality of scraping strips are horizontally arranged on the opposite sides of the pressure plate and the scraper, and the side of the scraper away from the scraper or the pressure plate is designed in an arc shape.

[0012] Furthermore, both the heat dissipation roller and the first guide roller are provided with heat dissipation holes, and the diameter of the heat dissipation roller is larger than the diameter of the first guide roller.

[0013] Furthermore, the position of the inlet hole is higher than the position of the outlet hole, and a third guide wheel is rotatably installed between the front and rear inner walls of the inlet hole and the outlet hole.

[0014] Furthermore, wires are inserted into the installation groove, and the wires enter the installation groove from the wire inlet hole and leave the installation groove from the wire outlet hole, and the part of the wires located in the installation slot is sequentially wound around multiple heat dissipation rollers, a first guide roller, a preheating assembly, a second guide roller, an induction heater, a first guide wheel and a stretching assembly.

[0015] The present invention also provides a method for using the large drawing machine annealing device, comprising the following steps:

[0016] Step 1: The wire that has been drawn to a certain diameter and hardened in the large drawing machine is passed through the wire inlet hole into the installation groove, and then the wire is passed through the annealing box after being guided by the heat dissipation roller and the first guide roller, and then the wire is first wound on the first winding roller for several turns, and then guided by the second guide roller to pass into the induction heater, and then guided by the first guide wheel and the second guide wheel, and then wound on the second winding roller for several turns, and then passed out of the annealing box, and finally guided by the remaining heat dissipation rollers and the first guide roller, and then passed through the wire outlet hole to pass through the installation groove and connected to the external pulling equipment;

[0017] Step 2: Start the driving motor to drive the two driving wheels to deflect toward the adjacent heat dissipation rollers through the rotating shaft, and finally cooperate with the heat dissipation rollers to press the wire material wound around the heat dissipation rollers;

[0018] Step 3: Adjust the position of the second guide wheel by adjusting the rod, so as to tighten the portion of the wire that passes into the annealing box;

[0019] Step 4: Start the pulling device and the induction heater to drive the wire to move out of the installation slot, thereby completing the annealing operation of the wire.

[0020] Technical effects and advantages of the present invention:

[0021] 1. The present invention is provided with a preheating component. During the annealing process of the wire, the wire heated by the induction heater can be gradually wound onto the second winding roller, and then the residual heat in the wire can be transferred to the metal heat conducting plate through the metal heat conducting strip on the second winding roller, and then the metal heat conducting plate can transfer the heat to the metal heat conducting strip connected thereto, so that the metal heat conducting strip on the first winding roller is used to preheat the wire to be annealed, thereby improving the efficiency of subsequent wire annealing, and also improving the utilization rate of the heat generated by the induction heater, saving heat energy;

[0022] 2. The present invention is provided with a tensioning assembly. When the portion of the wire outside the annealing box is compressed, the adjusting rod is turned to drive the movable axis to move away from the fixed axis through the U-shaped plate. During this process, the portion of the wire inside the annealing box can be gradually tightened, thereby adjusting the tension on the wire during annealing, thereby improving the annealing effect of the wire.

[0023] 3. The present invention is provided with a pressure plate and a scraper. After the wire is passed around the second guide wheel, the wire can be inserted between the pressure plate and the scraper from the gap in front of the two. Then the pressure plate can be pressed on the wire under the action of gravity, and the scraper can be deflected downward under the action of gravity and two connecting rods and fit together with the lower surface of the wire. Therefore, after the wire is annealed, the scraper and the scraping strips on the pressure plate can scrape against the wire, thereby scraping off some impurities generated on the surface of the wire during the annealing process to ensure the cleanliness of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a three-dimensional schematic diagram of all structures except the protective cover in the present invention;

[0026] Figure 3 It is a three-dimensional schematic diagram of the heat dissipation roller, the wire crimping assembly and the wire material in the present invention;

[0027] Figure 4 It is a three-dimensional schematic diagram of the annealing box and its internal structure in the present invention;

[0028] Figure 5 It is a three-dimensional schematic diagram of all the internal structures of the annealing box in the present invention;

[0029] Figure 6 It is a three-dimensional schematic diagram of the stretching assembly, the pressing plate, the scraper, the connecting rod and the scraper strip in the present invention;

[0030] Figure 7 It is a three-dimensional schematic diagram of the preheating component in the present invention.

[0031] In the figure: 1, frame; 2, protective cover; 3, first guide roller; 4, heat dissipation roller; 5, annealing box; 6, sealing cover; 7, wire pressing assembly; 71, rotating shaft; 72, driving motor; 73, driving wheel; 74, fixing rod; 8, preheating assembly; 81, mounting shaft; 82, first winding roller; 83, second winding roller; 84, metal heat conductive strip; 85, metal heat conductive plate; 9, second guide roller; 10, induction heater; 11, fixing shaft; 12, first connecting ball; 13, first guide wheel; 14, stretching assembly; 141, movable shaft; 142, U-shaped plate; 143, second connecting ball; 144, second guide wheel; 145, tension sensor; 146, adjusting rod; 147, limiting rod; 15, pressing plate; 16, scraper; 17, connecting rod; 18, scraper strip; 19, third guide wheel; 20, wire. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0033] The present invention provides Figures 1 to 7 The annealing device of a large drawing machine shown in the figure comprises a frame 1, a mounting groove is provided on the front side of the frame 1, and a protective cover 2 is installed on the front side of the mounting groove, a plurality of first guide rollers 3 and a plurality of heat dissipation rollers 4 are vertically installed on the inner wall of the rear side of the mounting groove, and a wire inlet hole and a wire outlet hole are respectively opened on the groove walls on both sides of the mounting groove, an annealing box 5 is installed on the groove wall at the bottom of the mounting groove, a sealing cover 6 is provided on the front side of the annealing box 5, a wire pressing assembly 7 is provided on the top of the annealing box 5, and the wire pressing assembly 7 is symmetrically arranged between two heat dissipation rollers 4, the wire pressing assembly 7 comprises a rotating shaft 71, the rear end of the rotating shaft 71 is transmission-connected with a driving motor 72, and the driving motor 72 is installed on the inner wall of the rear side of the annealing box 5, driving wheels 73 are provided on both sides of the rotating shaft 71, and the two driving wheels 73 are distributed front and back, and both ends of the driving wheel 73 are vertically rotatably connected with a fixing rod 74 , the fixed rod 74 is fixedly connected to the surface of the rotating shaft 71, and the vertical distance between the two driving wheels 73 is greater than the distance between the two adjacent heat dissipation rollers 4 on both sides of the rotating shaft 71. A preheating component 8 is arranged in the annealing box 5, and a second guide roller 9 is arranged on one side of the preheating component 8. The second guide roller 9 is vertically mounted on the inner wall of the rear side of the annealing box 5. An induction heater 10 is arranged at the bottom of the second guide roller 9. The induction heater 10 is mounted on the inner wall of the rear side of the annealing box 5. A fixed shaft 11 is arranged at the bottom of the induction heater 10. The fixed shaft 11 is vertically mounted on the inner wall of the rear side of the annealing box 5, and a first connecting ball 12 is fixedly sleeved on the fixed shaft 11, and a first guide wheel 13 is movably sleeved on the first connecting ball 12. A tensioning component 14 is arranged on the side of the fixed shaft 11 close to the wire outlet hole, and two threading holes are provided through the top of the annealing box 5.

[0034] The wire 20 drawn to a certain diameter and hardened in the large drawing machine (not shown) is inserted into the installation groove through the wire inlet hole, and then the wire 20 is guided by the heat dissipation roller 4 and the first guide roller 3 and inserted into the annealing box 5. Then, the wire 20 is first wound on the first winding roller 82 for several turns, and then guided by the second guide roller 9 and inserted into the induction heater 10. Then, the wire 20 is guided by the first guide wheel 13 and the second guide wheel 144 and then wound on the second winding roller 83 for several turns, and then passes out of the annealing box 5. Finally, after being guided by the remaining heat dissipation rollers 4 and the first guide roller 3, the wire 20 is passed out through the wire outlet hole. The installation slot is connected to the external pulling device, and then the driving motor 72 is started to drive the rotating shaft 71 to rotate. During this process, the two driving wheels 73 can contact the two adjacent heat pipes from the top and the bottom respectively and finally press the wire 20. When the wire 20 completes the pressing operation, the stretching component 14 in the annealing box 5 can be adjusted, so that the tension of the part where the wire 20 is located in the annealing box 5 can be adjusted, and then the optimal tension of the wire 20 during annealing is adjusted according to the needs, which helps the wire 20 to better eliminate the residual internal stress after stretching during annealing;

[0035] When the tension adjustment of the wire 20 in the annealing box 5 is completed, the external pulling device, the two driving wheels 73 and the induction heater 10 are started, thereby driving the wire 20 to move and realizing the heating annealing treatment of the wire 20;

[0036] In addition, by providing a preheating component 8, after the wire 20 is annealed, the preheating component 8 can use the residual heat after the wire 20 is heated to preheat the wire 20 to be annealed, thereby improving the efficiency of subsequent annealing of the wire 20, while also improving the utilization rate of the heat generated by the induction heater 10 and saving thermal energy.

[0037] like Figure 4 , Figure 5 and Figure 7As shown, the preheating assembly 8 includes a mounting shaft 81, which is vertically fixedly connected to the inner wall of the rear side of the annealing box 5, and a first winding roller 82 and a second winding roller 83 are rotatably sleeved on the mounting shaft 81. The first winding roller 82 is located at the front side of the second winding roller 83, and the diameter of the first winding roller 82 is larger than the diameter of the second winding roller 83. The surfaces of the first winding roller 82 and the second winding roller 83 are both installed with a plurality of metal heat-conducting strips 84 along the length direction of the mounting shaft 81, and the metal heat-conducting strips 84 are kept flush with the surfaces of the first winding roller 82 and the second winding roller 83. A coaxial metal heat-conducting disk 85 is fixedly connected to the rear side of the first winding roller 82, and the front side of the metal heat-conducting disk 85 is fixedly connected to the metal heat-conducting strip 84 on the first winding roller 82. The metal heat-conducting disk 85 is rotatably sleeved on the second winding roller 83, and the inner side of the metal heat-conducting disk 85 is bonded to the surfaces of the plurality of metal heat-conducting strips 84 on the second winding roller 83.

[0038] By providing the preheating assembly 8, before annealing the wire 20, Figure 4 And the instruction manual Figure 5 The wire 20 is wound around the first winding roller 82 and the second winding roller 83 respectively in the winding method in the embodiment of the present invention, so that during the annealing process of the wire 20, the wire 20 can be first released from the first winding roller 82, and then as the wire 20 moves, the wire 20 can enter the induction heater 10 to be heated, and then as the wire 20 continues to move, the heated part of the wire 20 can first be guided by the first guide wheel 13 and the second guide wheel 144 in sequence and then gradually wound around the second winding roller 83, and then the residual heat in the wire 20 is The heat can be transferred to the metal heat conducting plate 85 through the metal heat conducting strip 84 on the second winding roller 83, and then the metal heat conducting plate 85 that has absorbed the heat can transfer the heat to the metal heat conducting strip 84 on the first winding roller 82 connected thereto, and then the metal heat conducting strip 84 on the first winding roller 82 that has absorbed the heat can preheat the wire 20 to be heated that is wound on the first winding roller 82, thereby improving the efficiency of subsequent annealing of the wire 20, and also improving the utilization rate of the heat generated by the induction heater 10, saving heat energy;

[0039] In addition, since the diameter of the first winding roller 82 is larger than the diameter of the second winding roller 83, the wire 20 wound on the first winding roller 82 can more fully exchange heat with the metal thermal conductive strip 84 on the first winding roller 82, thereby improving the preheating effect of the metal thermal conductive strip 84 on the first winding roller 82 on the wire 20.

[0040] like Figures 4 to 6As shown, the stretching assembly 14 includes a movable shaft 141, and the movable shaft 141 is perpendicular to the inner wall of the rear side of the annealing box 5, a U-shaped plate 142 is fixedly connected between the two ends of the movable shaft 141, and the opening of the U-shaped plate 142 is opposite to the fixed shaft 11, a second connecting ball 143 is fixedly sleeved on the movable shaft 141, and a second guide wheel 144 is movably sleeved on the second connecting ball 143, the first guide wheel 13 is closer to the front side of the annealing box 5 than the second guide wheel 144, and the surfaces of the first guide wheel 13 and the second guide wheel 144 are both provided with annular grooves, and a tension sensor 145 is installed on the side of the U-shaped plate 142 away from the fixed shaft 11, and the tension sensor 145 is away from the side of the U-shaped plate 142 The adjusting rod 146 is vertically rotatably connected, and the adjusting rod 146 is vertically rotatably inserted into the groove wall of the installation groove near the outlet hole. The front and rear sides of the adjusting rod 146 are provided with limit rods 147, one end of the limit rod 147 is fixedly connected to the U-shaped plate 142, and the other end of the limit rod 147 is vertically slidably inserted into the groove wall of the installation groove near the outlet hole. The installation groove is penetrated with a wire 20, and the wire 20 enters the installation groove from the inlet hole and leaves the installation groove from the outlet hole. The part of the wire 20 located in the installation slot is sequentially wound around a plurality of heat dissipation rollers 4, a first guide roller 3, a preheating assembly 8, a second guide roller 9, an induction heater 10, a first guide wheel 13 and a stretching assembly 14;

[0041] After the wire 20 completes the winding operation in the multiple first guide rollers 3, the heat dissipation rollers 4 and the annealing box 5 and passes through the installation slot from the wire outlet hole, the wire pressing assembly 7 is first started to press the part of the wire 20 located outside the annealing box 5, and then the adjusting rod 146 is turned to drive the movable shaft 141 to move away from the fixed shaft 11 through the U-shaped plate 142. During this process, the part of the wire 20 located in the annealing box 5 can be gradually tightened, while the part of the wire 20 located outside the annealing box 5 is not affected, so that the tension of the annealing part of the wire 20 can be adjusted separately, thereby improving the annealing effect of the wire 20, and when adjusting the annealing tension of the wire 20, the tension sensor 145 can be used to understand the tension of the part of the wire 20 located in the annealing box 5, and then the optimal tension of the wire 20 during annealing is adjusted according to demand, which helps the wire 20 to better eliminate the internal residual stress after stretching during annealing.

[0042] like Figures 4 to 6As shown, a pressing plate 15 is hinged on the top of the U-shaped plate 142, and a scraper 16 is arranged in parallel on one side of the pressing plate 15 close to the movable shaft 141, and two connecting rods 17 are arranged in parallel on the rear sides of the pressing plate 15 and the scraper 16, and the two ends of the two connecting rods 17 are rotatably connected to the pressing plate 15 and the scraper 16 respectively, and a plurality of scraper strips 18 are horizontally arranged on the opposite sides of the pressing plate 15 and the scraper 16, and the scraper strips 18 are designed in an arc shape on the side away from the scraper 16 or the pressing plate 15;

[0043] By providing the pressing plate 15 and the scraper 16, after the wire 20 passes around the second guide wheel 144, the wire 20 can be inserted between the pressing plate 15 and the scraper 16 from the gap in front of the two. Then, the pressing plate 15 can be pressed on the wire 20 under the action of gravity, and the scraper 16 can be deflected downward under the action of gravity and two connecting rods 17 and fit together with the lower surface of the wire 20. Therefore, after the wire 20 is annealed, the scraper 16 and the scraper bar 18 on the pressing plate 15 can scrape against the wire 20, thereby scraping off some impurities generated on the surface of the wire 20 during the annealing process, thereby ensuring the cleanliness of the wire 20.

[0044] like Figure 2 As shown, the heat dissipation roller 4 and the first guide roller 3 are both provided with heat dissipation holes, and the diameter of the heat dissipation roller 4 is larger than the diameter of the first guide roller 3;

[0045] By opening heat dissipation holes on the first guide roller 3 and the heat dissipation roller 4, the heat transferred from the wire 20 to the first guide roller 3 and the heat dissipation roller 4 can be easily dissipated. In addition, the heat dissipation roller 4 with a larger diameter can also increase the contact area between the heat dissipation roller 4 and the wire 20, which is more conducive to the transfer of heat to the heat dissipation roller 4 and improves the heat dissipation effect of the heat dissipation roller 4 on the wire 20.

[0046] like Figure 1 As shown, the position of the inlet hole is higher than the position of the outlet hole, and a third guide wheel 19 is rotatably installed between the front and rear inner walls of the inlet hole and the outlet hole;

[0047] By providing the third guide wheel 19, when the wire 20 passes through the wire inlet hole or the wire outlet hole, the third guide wheel 19 can guide the wire 20 to avoid the wire 20 from scratching against the inner wall of the wire inlet hole or the wire outlet hole.

[0048] The present invention also provides a method for using the large drawing machine annealing device, comprising the following steps:

[0049] Step 1: The wire 20 drawn to a certain diameter and hardened in the large drawing machine is passed through the wire inlet hole into the installation groove, and then the wire 20 is guided by the heat dissipation roller 4 and the first guide roller 3 and passed into the annealing box 5, and then the wire 20 is first wound on the first winding roller 82 for several turns, and then guided by the second guide roller 9 and passed into the induction heater 10, and then guided by the first guide wheel 13 and the second guide wheel 144 and then wound on the second winding roller 83 for several turns, and then passed out of the annealing box 5, and finally guided by the remaining heat dissipation rollers 4 and the first guide roller 3, and then passed through the wire outlet hole to pass through the installation groove and connected to the external pulling equipment;

[0050] Step 2: Start the driving motor 72, so that it drives the two driving wheels 73 to deflect toward the adjacent heat dissipation rollers 4 through the rotating shaft 71, and finally cooperates with the heat dissipation rollers 4 to press the wire 20 wound around the heat dissipation rollers 4;

[0051] Step 3: Adjust the position of the second guide wheel 144 by adjusting the rod 146, so as to tighten the portion of the wire 20 that penetrates into the annealing box 5;

[0052] Step 4: Start the pulling device and the induction heater 10 to drive the wire 20 to move out of the installation groove, thereby completing the annealing operation on the wire 20.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A large drawing machine annealing device, comprising a frame (1), characterized in that: The frame (1) is provided with a mounting groove on the front side, and a protective cover (2) is installed on the front side of the mounting groove; a plurality of first guide rollers (3) and a plurality of heat dissipation rollers (4) are vertically installed on the inner wall of the rear side of the mounting groove; a wire inlet hole and a wire outlet hole are respectively opened on the groove walls on both sides of the mounting groove; an annealing box (5) is installed on the groove wall at the bottom of the mounting groove; a sealing cover (6) is provided on the front side of the annealing box (5); a wire pressing assembly (7) is provided on the top of the annealing box (5), and the wire pressing assembly (7) is symmetrically arranged between two heat dissipation rollers (4); a preheating assembly (8) is provided in the annealing box (5); a second guide roller (9) is provided on one side of the preheating assembly (8); and the second The guide roller (9) is vertically mounted on the inner wall of the rear side of the annealing box (5); an induction heater (10) is arranged at the bottom of the second guide roller (9); the induction heater (10) is mounted on the inner wall of the rear side of the annealing box (5); a fixed shaft (11) is arranged at the bottom of the induction heater (10); the fixed shaft (11) is vertically mounted on the inner wall of the rear side of the annealing box (5); a first connecting ball (12) is fixedly sleeved on the fixed shaft (11); a first guide wheel (13) is movably sleeved on the first connecting ball (12); a tensioning assembly (14) is arranged on the side of the fixed shaft (11) close to the wire outlet hole; and two threading holes are formed through the top of the annealing box (5); The preheating assembly (8) comprises a mounting shaft (81), the mounting shaft (81) being vertically fixedly connected to the inner wall of the rear side of the annealing box (5), a first winding roller (82) and a second winding roller (83) being rotatably sleeved on the mounting shaft (81), the first winding roller (82) being located in front of the second winding roller (83), the diameter of the first winding roller (82) being larger than the diameter of the second winding roller (83), and a plurality of metal heat conductive strips (82, 83) being mounted on the surfaces of the first winding roller (82) and the second winding roller (83) along the length direction of the mounting shaft (81). 84), and the metal heat-conducting strip (84) is kept flush with the surfaces of the first winding roller (82) and the second winding roller (83); a coaxial metal heat-conducting plate (85) is fixedly connected to the rear side of the first winding roller (82); the front side of the metal heat-conducting plate (85) is fixedly connected to the metal heat-conducting strip (84) on the first winding roller (82); the metal heat-conducting plate (85) is rotatably sleeved on the second winding roller (83), and the inner side of the metal heat-conducting plate (85) is bonded to the surface of a plurality of metal heat-conducting strips (84) on the second winding roller (83).

2. The large drawing machine annealing device according to claim 1, characterized in that: The wire pressing assembly (7) comprises a rotating shaft (71), the rear end of the rotating shaft (71) is transmission-connected to a driving motor (72), the driving motor (72) is mounted on the rear inner wall of the annealing box (5), driving wheels (73) are arranged on both sides of the rotating shaft (71), and the two driving wheels (73) are distributed front and back, both ends of the driving wheels (73) are vertically rotatably connected to fixed rods (74), the fixed rods (74) are fixedly connected to the surface of the rotating shaft (71), and the vertical distance between the two driving wheels (73) is greater than the distance between two adjacent heat dissipation rollers (4) on both sides of the rotating shaft (71).

3. The large drawing machine annealing device according to claim 2, characterized in that: The stretching assembly (14) comprises a movable shaft (141), and the movable shaft (141) is perpendicular to the inner wall of the rear side of the annealing box (5), a U-shaped plate (142) is fixedly connected between the two ends of the movable shaft (141), and the opening of the U-shaped plate (142) is opposite to the fixed shaft (11), a second connecting ball (143) is fixedly sleeved on the movable shaft (141), and a second guide wheel (144) is movably sleeved on the second connecting ball (143), the first guide wheel (13) is closer to the front side of the annealing box (5) than the second guide wheel (144), and the surfaces of the first guide wheel (13) and the second guide wheel (144) are An annular groove is provided, a tension sensor (145) is installed on one side of the U-shaped plate (142) away from the fixed shaft (11), the tension sensor (145) is vertically rotatably connected to an adjustment rod (146) on the side of the U-shaped plate (142) away from the fixed shaft (11), the adjustment rod (146) is vertically rotatably inserted into a groove wall of the installation groove near the outlet hole, and a limit rod (147) is provided on the front and rear sides of the adjustment rod (146), one end of the limit rod (147) is fixedly connected to the U-shaped plate (142), and the other end of the limit rod (147) is vertically slidably inserted into the groove wall of the installation groove near the outlet hole.

4. The large drawing machine annealing device according to claim 3, characterized in that: A pressure plate (15) is hingedly connected to the top of the U-shaped plate (142); a scraper (16) is arranged in parallel on one side of the pressure plate (15) close to the movable shaft (141); two connecting rods (17) are arranged in parallel on the rear sides of the pressure plate (15) and the scraper (16); the two ends of the two connecting rods (17) are rotatably connected to the pressure plate (15) and the scraper (16) respectively; a plurality of scraper strips (18) are arranged horizontally on the opposite sides of the pressure plate (15) and the scraper (16); and the scraper strips (18) are designed to be arc-shaped on the side away from the scraper (16) or the pressure plate (15).

5. The large drawing machine annealing device according to claim 4, characterized in that: The heat dissipation roller (4) and the first guide roller (3) are both provided with heat dissipation holes, and the diameter of the heat dissipation roller (4) is greater than the diameter of the first guide roller (3).

6. The large drawing machine annealing device according to claim 2, characterized in that: The position of the inlet hole is higher than the position of the outlet hole, and a third guide wheel (19) is rotatably mounted between the front and rear inner walls of the inlet hole and the outlet hole.

7. The large drawing machine annealing device according to claim 6, characterized in that: A wire (20) is inserted into the installation slot, the wire (20) enters the installation slot from the wire inlet hole and leaves the installation slot from the wire outlet hole, and the portion of the wire (20) located in the installation slot is sequentially wound around a plurality of heat dissipation rollers (4), a first guide roller (3), a preheating assembly (8), a second guide roller (9), an induction heater (10), a first guide wheel (13), and a tensioning assembly (14).

8. A method for using the large drawing machine annealing device according to claim 7, characterized in that: The following steps are involved: Step 1: The wire (20) drawn to a certain diameter and hardened in the large drawing machine is passed through the wire inlet hole into the installation groove, and then the wire (20) is guided by the heat dissipation roller (4) and the first guide roller (3) and then passed into the annealing box (5). Then, the wire (20) is first wound around the first winding roller (82) for several turns, and then guided by the second guide roller (9) into the induction heater (10). Then, the wire (20) is guided by the first guide wheel (13) and the second guide wheel (144) and then wound around the second winding roller (83) for several turns, and then passed out of the annealing box (5). Finally, after being guided by the remaining heat dissipation rollers (4) and the first guide roller (3), the wire is passed out of the installation groove through the wire outlet hole and connected to the external drawing equipment. Step 2: starting the driving motor (72) so that it drives the two driving wheels (73) to deflect toward the adjacent heat dissipation rollers (4) through the rotating shaft (71), and finally cooperates with the heat dissipation rollers (4) to press the wire (20) wound around the heat dissipation rollers (4); Step 3: adjusting the position of the second guide wheel (144) by means of an adjusting rod (146), thereby tightening the portion of the wire (20) that passes into the annealing box (5); Step 4: Start the pulling device and the induction heater (10), thereby driving the wire (20) to move outside the installation groove, thereby completing the annealing operation on the wire (20).

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