Wire drawing annealing machine and annealing process thereof

Abstract

The invention relates to the technical field of wire drawing annealing machines, in particular to a wire drawing annealing machine and an annealing process thereof. The wire drawing annealing machine comprises a main shell, an annealing box and a heat exchange assembly. A mounting groove is formed in the main shell, and the annealing box is arranged in the mounting groove and fixedly connected with the main shell. The annealing box is provided with a wire inlet hole used for conveying metal wires and a wire outlet hole used for outputting the metal wires. An induction annealing furnace is arranged in the annealing box and used for conducting annealing treatment on the metal wires. Wherein the heat exchange assembly is arranged in the annealing box, and the heat exchange assembly is used for conducting heat exchange on the annealed metal wire and the unannealed metal wire, so that waste heat is transmitted to the unannealed metal wire, and the preheating effect is achieved. Therefore, the recycling rate of heat is effectively improved, energy waste is reduced, and the efficiency of the annealing process is improved.

Description

Technical Field

[0001] This invention relates to the field of wire drawing annealing machine technology, and in particular to a wire drawing annealing machine and its annealing process. Background Technology

[0002] Wire drawing machines are key pieces of equipment widely used in the metal processing field. They are mainly used to gradually reduce the diameter of thicker metal wires (such as copper wires and aluminum wires) through multiple drawing processes to obtain fine metal wires that meet specified specifications. During this process, the metal wires undergo significant plastic deformation, leading to problems such as residual stress and reduced plasticity, which affect subsequent processing performance.

[0003] To restore the processing performance of metal wire, annealing machines, as an important auxiliary equipment to wire drawing machines, are usually set after the drawing process or between multiple drawing passes. Annealing is a typical metal heat treatment process, which involves heating the metal wire to an appropriate temperature, holding it for a certain time, and then cooling it at a suitable rate. This effectively eliminates residual stress generated during cold working, improves the microstructure of the metal wire, reduces hardness, and enhances plasticity and toughness.

[0004] However, in existing annealing machines, the residual heat in the metal wire after annealing is not well utilized and is wasted as the metal wire cools down, resulting in heat loss. Summary of the Invention

[0005] Therefore, it is necessary to provide a wire drawing annealing machine to address the problem that the residual heat in the metal wire cannot be recovered after the current annealing machine completes the annealing process.

[0006] The above objectives are achieved through the following technical solutions: A wire drawing annealing machine, comprising: The main housing has a mounting groove. An annealing chamber is disposed in the mounting slot and fixedly connected to the main housing; the annealing chamber has an inlet hole for conveying metal wire and an outlet hole for outputting metal wire; an induction annealing furnace is disposed inside the annealing chamber for annealing the metal wire. A heat exchange assembly is disposed inside the annealing chamber and is used to enable heat exchange between the annealed metal wire and the unannealed metal wire.

[0007] Further, the heat exchange assembly comprises a heat conduction pipe, a guiding mechanism and two groups of support arms; the two groups of support arms are fixedly connected with the main shell and are fixedly connected to two ends of the heat conduction pipe respectively; the guiding mechanism comprises a plurality of coaxially detachably connected spiral sleeve assemblies, and the plurality of spiral sleeve assemblies are coaxially arranged on the outside of the heat conduction pipe; a first channel extending along the axial direction of the heat conduction pipe is arranged in the heat conduction pipe, and the first channel is used for passing the unannealed metal wire; when the annealed metal wire passes through the spiral sleeve assembly, the heat carried by the annealed metal wire is transferred to the first channel, so that the unannealed metal wire can be preheated.

[0008] Further, each group of the spiral sleeve assembly comprises a first half ring sleeve and a second half ring sleeve, the first half ring sleeve and the second half ring sleeve are detachably connected, the first half ring sleeve and the second half ring sleeve are coaxially screwed with the heat conduction pipe, and the first half ring sleeve and the second half ring sleeve can rotate and slide relative to the heat conduction pipe; the outer wall of the first half ring sleeve and the outer wall of the second half ring sleeve are provided with a second channel, and the second channel extends spirally around the central axis of the heat conduction pipe; the second channel on the outer wall of the first half ring sleeve and the second channel on the outer wall of the second half ring sleeve are symmetrically arranged and are in communication to form a spiral flow channel; when the annealed metal wire preheats the unannealed metal wire by passing through the spiral flow channel, the guiding mechanism is used to move the first half ring sleeve and the second half ring sleeve at the top end of the heat conduction pipe to the bottom end of the heat conduction pipe.

[0009] Further, the guiding mechanism comprises a driving unit, a first grabbing unit and a second grabbing unit, the driving unit comprises a limiting rod, a reciprocating screw rod and a sliding rod, two groups of the support arms are arranged at two ends of the limiting rod respectively, and the limiting rod can rotate relative to the two groups of support arms; a first gear and a second gear are coaxially fixedly arranged on the limiting rod, and the first gear is engaged with the first half ring sleeve or the second half ring sleeve; two groups of the support arms are arranged at two ends of the reciprocating screw rod respectively, and the reciprocating screw rod can rotate relative to the two groups of support arms; a third gear is coaxially fixedly arranged on the reciprocating screw rod, and the third gear is engaged with the second gear; when the reciprocating screw rod rotates around the axial direction thereof, the sliding rod can slide along the axial direction of the reciprocating screw rod; the first grabbing unit is used to move the first half ring sleeve at the top end of the heat conduction pipe to the bottom end of the heat conduction pipe, and the second grabbing unit is used to move the second half ring sleeve at the top end of the heat conduction pipe to the bottom end of the heat conduction pipe.

[0010] Further, the first grabbing unit comprises a first connecting rod, a first guide box, a first sensing claw and a first sliding box, the first connecting rod is in sliding connection with the sliding rod, the first sensing claw comprises a first rod and a first ring, the first rod is fixedly connected with the first ring, the first ring can relatively slide and rotate with the first half ring sleeve or the second half ring sleeve, the first rod is fixedly connected with the first sliding box, the first guide box is fixedly connected with the annealing box, and a first sliding block is fixedly arranged on an outer wall of the first sliding box, a first sliding groove is formed in an inner wall of the first guide box, and the first sliding block can slide in the first sliding groove.

[0011] Further, the second grabbing unit comprises a second connecting rod, a second guide box, a second sensing claw and a second sliding box, the second connecting rod is in sliding connection with the sliding rod, the second sensing claw comprises a second rod and a second ring, the second rod is fixedly connected with the second ring, the second ring can relatively slide and rotate with the first half ring sleeve or the second half ring sleeve, the second rod is fixedly connected with the second sliding box, the second guide box is fixedly connected with the annealing box, and a second sliding block is fixedly arranged on an outer wall of the second sliding box, a second sliding groove is formed in an inner wall of the second guide box, and the second sliding block can slide in the second sliding groove.

[0012] Further, the first grabbing unit further comprises a first one-way plate, the first one-way plate is arranged in the first sliding groove, and the first one-way plate is in rotary connection with the first guide box.

[0013] Further, the second grabbing unit further comprises a second one-way plate, the second one-way plate is arranged in the second sliding groove, and the second one-way plate is in rotary connection with the second guide box.

[0014] Further, a friction tube is arranged in the annealing box, and the friction tube is used for cleaning impurities on the surface of the annealed metal wire.

[0015] An annealing process of a wire drawing annealing machine, applied to the wire drawing annealing machine in any one of the preceding embodiments, comprises the following steps. S100, the unannealed metal wire is sent into the inside of the annealing box through the wire inlet hole; S200, the unannealed metal wire is annealed by the induction annealing furnace; S300, the annealed metal wire exchanges heat with the unannealed metal wire through the heat exchange assembly, so as to preheat the unannealed metal wire; S400, the annealed metal wire is output through the wire outlet hole.

[0016] The wire drawing annealing machine has the following beneficial effects: This invention provides a wire drawing annealing machine and its annealing process. The wire drawing annealing machine includes a main housing, an annealing chamber, and a heat exchange assembly. A mounting groove is provided on the main housing, and the annealing chamber is disposed within the mounting groove and fixedly connected to the main housing. The annealing chamber has an inlet hole for conveying metal wire and an outlet hole for outputting metal wire. Furthermore, an induction annealing furnace is provided inside the annealing chamber for annealing the metal wire. The heat exchange assembly is located inside the annealing chamber and is used to exchange heat between the annealed and unannealed metal wire, thereby transferring residual heat to the unannealed metal wire to achieve a preheating effect. Therefore, it not only effectively improves the heat recovery and utilization rate and reduces energy waste, but also enhances the efficiency of the annealing process. Attached Figure Description

[0017] Figure 1 This is an overall bearing diagram of a wire drawing annealing machine provided in an embodiment of the present invention; Figure 2 for Figure 1 Overall front sectional view; Figure 3 for Figure 1 Front view of the intermediate annealing chamber; Figure 4 for Figure 3 A sectional view along section AA; Figure 5 for Figure 4 A magnified view of a portion of point A in the middle; Figure 6 for Figure 3 A schematic diagram of the structure of the central guiding mechanism; Figure 7 for Figure 6 A schematic diagram of the structure from another viewpoint; Figure 8 for Figure 6 Schematic diagram of the structure of the heat exchange component; Figure 9 for Figure 3 Front sectional view of the intermediate annealing chamber; Figure 10 for Figure 9 A magnified view of a portion of point B in the middle; Figure 11 for Figure 9 Schematic diagram of the structure of the second slide; Figure 12 for Figure 6 A cross-sectional view along another line of sight; Figure 13 for Figure 12 Side view; Figure 14 for Figure 6 Schematic diagram of the exploded structure of the heat exchange component; Figure 15 For Figure 14 Structure diagram of the middle screw sleeve assembly.

[0018] Wherein: 100, main housing; 101, mounting groove; 102, wire inlet; 103, wire outlet; 104, first tension roller; 105, second tension roller; 106, first roller shaft; 107, second roller shaft; 110, annealing box; 111, wire inlet hole; 112, wire outlet hole; 121, first plate; 122, second plate; 123, third plate; 124, fourth plate; 131, first chamber; 132, second chamber; 133, third chamber; 140, water cooling box; 150, metal wire; 201, support arm; 202, reciprocating screw rod; 203, sliding rod; 204, limiting rod; 205, heating plate; 206, heating cylinder; 207, heating channel; 210, heat conduction pipe; 211, first channel; 220, friction pipe; 231, first gear; 232, second gear; 233, third gear; 241, first guide shaft; 242, second guide shaft; 243, third guide shaft; 244, fourth guide shaft; 251, first guide wheel; 252, second guide wheel; 253, third guide wheel; 254, fourth guide wheel; 301, first half ring sleeve; 302, second half ring sleeve; 311, first protrusion; 312, second protrusion; 321, first notch; 322, second notch; 331, second channel; 332, spiral flow channel; 333, magnet; 401, first connecting rod; 402, second connecting rod; 411, first rod; 412, second rod; 421, first ring; 422, second ring; 431, first sliding box; 432, second sliding box; 441, first sliding block; 442, second sliding block; 451, first guide box; 452, second guide box; 461, first sliding channel; 462, second sliding channel; 471, first sliding slot; 472, second sliding slot; 481, first one-way plate; 482, second one-way plate; 483, electromagnetic block. DETAILED DESCRIPTION

[0019] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0020] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] The following reference Figures 1 to 15 This invention describes a wire drawing annealing machine provided in an embodiment of the invention.

[0023] like Figure 1 and Figure 2 As shown, the wire drawing annealing machine provided by the present invention is particularly suitable for annealing metal wire 150, and can also be used for annealing under other working conditions under appropriate circumstances.

[0024] The drawing annealing machine comprises a main shell 100 and an annealing box 110. The main shell 100 is provided with a mounting groove 101, and the annealing box 110 is arranged in the mounting groove 101 and fixedly connected with the inner wall of the main shell 100. A plurality of groups of first tensioning rollers 104, a plurality of groups of first roller shafts 106, a plurality of groups of second tensioning rollers 105 and a plurality of groups of second roller shafts 107 are arranged in the mounting groove 101. The first roller shafts 106 and the second roller shafts 107 are arranged at intervals and are both fixedly connected with the inner wall of the main shell 100 perpendicularly. The diameter of the second tensioning roller 105 is greater than that of the first tensioning roller 104, the first tensioning roller 104 is coaxially connected with the first roller shaft 106 in a rotating mode, and the second tensioning roller 105 is coaxially connected with the second roller shaft 107 in a rotating mode. In addition, the side wall of the main shell 100 is provided with a wire feeding port 102 for feeding the metal wire 150 into the mounting groove 101, and the other side wall of the main shell 100 is provided with a wire outlet 103 for outputting the metal wire 150 from the mounting groove 101. The annealing box 110 is provided with a wire inlet hole 111 and a wire outlet hole 112, the wire inlet hole 111 is used for feeding the metal wire 150 into the annealing box 110, and the wire outlet hole 112 is used for outputting the metal wire 150 from the annealing box 110.

[0025] The first plate 121 and the second plate 122 are arranged at intervals and are both fixedly connected with the inner wall of the main shell 100 perpendicularly. The annealing box 110, the first plate 121 and the second plate 122 jointly form a first chamber 131, a second chamber 132 and a third chamber 133. The second chamber 132 is internally provided with an induction annealing furnace, and the induction annealing furnace comprises a heating plate 205 and a heating cylinder 206. The heating plate 205 and the heating cylinder 206 are fixedly connected, the heating plate 205 is fixedly connected with the inner wall of the main shell 100, and the heating cylinder 206 is internally provided with a heating channel 207 extending along the axial direction of the heating cylinder 206, and the heating channel 207 is used for passing and heating the metal wire 150.

[0026] The third plate 123 and the fourth plate 124 are arranged at intervals horizontally. One end of the third plate 123 is fixedly connected with the first plate 121, and the other end is fixedly connected with the second plate 122. One end of the fourth plate 124 is fixedly connected with the first plate 121, and the other end is fixedly connected with the second plate 122. The first guide shaft 241, the second guide shaft 242, the third guide shaft 243 and the fourth guide shaft 244 are arranged at intervals horizontally between the first plate 121 and the second plate 122, and both ends of the three are fixedly connected with the first plate 121 and the second plate 122 respectively. The third guide shaft 243 is arranged above the second guide shaft 242, and the second guide shaft 242 is arranged above the first guide shaft 241. Figure 6the vertical direction. In the vertical direction, a fourth guide shaft 244 is arranged between the third plate 123 and the fourth plate 124, one end of the fourth guide shaft 244 is fixedly connected with the third plate 123, and the other end is fixedly connected with the fourth plate 124. The fourth guide shaft 244 is arranged in a spaced manner with the second guide shaft 242, and the fourth guide shaft 244 is arranged at the right end of the second guide shaft 242, that is Figure 6 the horizontal direction.

[0027] A first guide wheel 251 is coaxially arranged on the first guide shaft 241, and the first guide wheel 251 can rotate around the axial direction of the first guide shaft 241; a second guide wheel 252 is coaxially arranged on the second guide shaft 242, and the second guide wheel 252 can rotate around the axial direction of the second guide shaft 242; a third guide wheel 253 is coaxially arranged on the third guide shaft 243, and the third guide wheel 253 can rotate around the axial direction of the third guide shaft 243; a fourth guide wheel 254 is coaxially arranged on the fourth guide shaft 244, and the fourth guide wheel 254 can rotate around the axial direction of the fourth guide shaft 244; further, the first guide wheel 251, the second guide wheel 252, the third guide wheel 253, and the fourth guide wheel 254 are used to guide the movement of the metal wire 150.

[0028] The wire drawing annealing machine further comprises a heat exchange assembly arranged inside the annealing box 110, the heat exchange assembly is arranged in the same vertical plane as the heating cylinder 206, and the heat exchange assembly is arranged at the upper end of the heating cylinder 206, that is Figure 6 the vertical direction, that is, the heat exchange assembly is arranged closer to the wire inlet hole 111.

[0029] Specifically, the unannealed metal wire 150 enters the installation groove 101 from the wire inlet port 102, is guided by the first tensioning roller 104 and the second tensioning roller 105 located at the top end of the annealing box 110, then enters the inside of the annealing box 110 from the wire inlet hole 111, and passes through the heat exchange assembly and the heating channel 207 in sequence.

[0030] In the heating channel 207, the unannealed metal wire 150 is heated to the required annealing temperature. Subsequently, the annealed metal wire 150 is guided by the first guide wheel 251, the second guide wheel 252, and the fourth guide wheel 254 in sequence, ensuring the stability of the running path.

[0031] Subsequently, the annealed metal wire 150 is wound on the heat exchange assembly for a preset number of turns and performs heat exchange. In this process, the annealed metal wire 150 transfers part of its heat to the unannealed metal wire 150 entering from the inlet hole 111 and passing through the heat exchange assembly, achieving preheating of the unannealed metal wire 150, so that the unannealed metal wire 150 is preheated before passing through the heating channel 207. Therefore, not only is the waste heat of the annealed metal wire 150 effectively recycled, reducing overall energy consumption, but also helps to improve the stability of the annealing process.

[0032] After the heat exchange is completed, the annealed metal wire 150 is guided by the third guide wheel 253 to pass out of the annealing box 110 from the outlet hole 112, is guided in turn by the remaining first tensioning rollers 104 and the second tensioning rollers 105 in the installation groove 101, passes out of the installation groove 101 through the outlet 103, and then enters the water cooling box 140 matched with the wire drawing annealing machine.

[0033] In one embodiment, the heat exchange assembly includes a heat conducting pipe 210, a guide mechanism, and two groups of support arms 201. The heat conducting pipe 210 is arranged vertically, and the two groups of support arms 201 are fixedly connected with the main housing 100 and are fixedly connected to the two ends of the heat conducting pipe 210, respectively. The guide mechanism includes a plurality of coaxially detachably connected spiral sleeve assemblies, and the plurality of spiral sleeve assemblies are coaxially arranged on the outside of the heat conducting pipe 210. The heat conducting pipe 210 is internally provided with a first channel 211 extending along the axial direction thereof, and the first channel 211 is used for passing the unannealed metal wire 150. When the annealed metal wire 150 passes through the spiral sleeve assembly, the heat carried by the annealed metal wire 150 is transferred into the first channel 211, which can preheat the unannealed metal wire 150.

[0034] In one embodiment, each group of spiral sleeve assemblies includes a first half ring sleeve 301 and a second half ring sleeve 302, and the first half ring sleeve 301 and the second half ring sleeve 302 are coaxially threadedly connected with the heat conducting pipe 210. The first half ring sleeve 301 and the second half ring sleeve 302 can rotate and slide relative to the heat conducting pipe 210. The top of the first half ring sleeve 301 and the top of the second half ring sleeve 302 are fixedly provided with first protrusions 311, and the bottom of the first half ring sleeve 301 and the bottom of the second half ring sleeve 302 are provided with first notches 321. In the vertical direction, adjacent first half ring sleeves 301 are detachably and fitly connected through the cooperation of the first protrusions 311 and the first notches 321, and adjacent second half ring sleeves 302 are detachably and fitly connected through the cooperation of the first protrusions 311 and the first notches 321.

[0035] Meanwhile, the first half ring sleeve 301 is fixedly provided with a second protrusion 312 on one side wall and is provided with a second notch 322 on the other side wall, and the second half ring sleeve 302 is symmetrically arranged with the first half ring sleeve 301 in the side wall structure. Therefore, in each group of spiral sleeve assemblies, the second protrusion 312 on the first half ring sleeve 301 is embedded with the second notch 322 on the second half ring sleeve 302, and the second protrusion 312 on the second half ring sleeve 302 is embedded with the second notch 322 on the first half ring sleeve 301, so as to realize the transverse detachable connection between the first half ring sleeve 301 and the second half ring sleeve 302.

[0036] Further, the outer wall of the first half ring sleeve 301 and the outer wall of the second half ring sleeve 302 are both provided with a second channel 331, which extends spirally around the central axis of the heat conduction pipe 210, and the second channel 331 on the outer wall of the first half ring sleeve 301 is symmetrically arranged with the second channel 331 on the outer wall of the second half ring sleeve 302. When the first half ring sleeve 301 and the second half ring sleeve 302 are embedded and connected, the second channel 331 on the outer wall of the first half ring sleeve 301 and the second channel 331 on the outer wall of the second half ring sleeve 302 together form a complete, continuous and spiral axial flow channel 332 around the heat conduction pipe 210.

[0037] In particular, the interior of the first half ring sleeve 301 and the interior of the second half ring sleeve 302 are both provided with a magnet 333, which further enhances the connection stability through the magnetic force of the magnet 333.

[0038] Specifically, when the unannealed metal wire 150 enters the interior of the annealing box 110 from the wire inlet hole 111, it successively passes through the first channel 211 and the heating channel 207 and is heated to the required annealing temperature in the heating channel 207. Subsequently, the annealed metal wire 150 is guided to enter the spiral flow channel 332 from the second circle position (from bottom to top direction) of the spiral flow channel 332 under the guidance of the first guide wheel 251, the second guide wheel 252 and the fourth guide wheel 254, and is wound for a predetermined number of turns in the spiral flow channel 332 while moving upward along the axial direction of the heat conduction pipe 210 in the spiral flow channel 332, that is, the upward direction in the spiral flow channel 332. Figure 6 In this process, the annealed metal wire 150 transfers part of its heat to the heat conduction pipe 210 through the first half ring sleeve 301 and the second half ring sleeve 302, and the heat conduction pipe 210 conducts the heat to the unannealed metal wire 150 in the first channel 211, thereby achieving the preheating treatment of the unannealed metal wire 150.

[0039] Furthermore, since both the first semi-ring 301 and the second semi-ring 302 are threadedly connected to the heat pipe 210, when the annealed metal wire 150 moves within the spiral flow channel 332, friction causes all the first semi-rings 301 and all the second semi-rings 302 to rotate around the axial direction of the heat pipe 210 and move upwards along the axial direction of the heat pipe 210. Figure 6 In the vertical direction within the spiral sleeve assembly, to maintain the stability of the movement of the annealed metal wire 150 during this process, the guiding mechanism detaches the first half-ring 301 and the second half-ring 302 located at the top of the heat pipe 210 from the entire spiral sleeve assembly. Simultaneously, the first half-ring 301 and the second half-ring 302 gradually separate. Then, the separated first half-ring 301 and the second half-ring 302 are moved downwards along the axial direction of the heat pipe 210 to the bottom of the heat pipe 210. The first half-ring 301 and the second half-ring 302 are then reassembled and fitted together radially along the heat pipe 210, and reconnected to the entire spiral sleeve assembly along the axial direction of the heat pipe 210. This process is continuously repeated to ensure that the overall height remains constant, ensuring the continuity and stability of the annealed metal wire 150's movement within the spiral flow channel 332.

[0040] In one embodiment, the guiding mechanism includes a drive unit, a first gripping unit, and a second gripping unit. The drive unit includes a limiting rod 204, a reciprocating screw 202, and a sliding rod 203. Two sets of support arms 201 are respectively disposed at both ends of the limiting rod 204, allowing the limiting rod 204 to rotate relative to the two sets of support arms 201. A first gear 231 and a second gear 232 are coaxially fixedly disposed on the limiting rod 204, with the first gear 231 meshing with either the first semi-ring sleeve 301 or the second semi-ring sleeve 302. The two sets of support arms 201 are respectively disposed at both ends of the reciprocating screw 202, allowing the reciprocating screw 202 to rotate relative to the two sets of support arms 201. The support arm 201 rotates relative to the other arm; when the reciprocating screw 202 rotates around its own axis, the sliding rod 203 can slide along the axis of the reciprocating screw 202; a third gear 233 is fixedly installed on the reciprocating screw 202, and the third gear 233 meshes with the second gear 232; the first gripping unit drives the first half-ring 301 located at the top of the heat pipe 210 to move to the bottom of the heat pipe 210, and the second gripping unit drives the second half-ring 302 located at the top of the heat pipe 210 to move to the bottom of the heat pipe 210.

[0041] In one of the embodiments, the first grabbing unit comprises a first connecting rod 401, a first guiding box 451, a first sensing claw and a first sliding box 431. The first connecting rod 401 is slidingly connected to one end of the sliding rod 203. The first sensing claw comprises a first rod 411 and a first ring 421. The first rod 411 is fixedly connected to the first ring 421. The first ring 421 can relatively slide and rotate with the first half ring sleeve 301 or the second half ring sleeve 302. The first rod 411 is fixedly connected to the first sliding box 431. The first guiding box 451 is fixedly connected to the first plate 121. The outer wall of the first sliding box 431 is fixedly provided with a first sliding block 441. The inner wall of the first guiding box 451 is provided with a first sliding channel 461. The first sliding block 441 can slide in the first sliding channel 461.

[0042] In one of the embodiments, the second grabbing unit comprises a second connecting rod 402, a second guiding box 452, a second sensing claw and a second sliding box 432. The second connecting rod 402 is slidingly connected to the other end of the sliding rod 203. The second sensing claw comprises a second rod 412 and a second ring 422. The second rod 412 is fixedly connected to the second ring 422. The second ring 422 can relatively slide and rotate with the first half ring sleeve 301 or the second half ring sleeve 302. The second rod 412 is fixedly connected to the second sliding box 432. The second guiding box 452 is fixedly connected to the second plate 122. The outer wall of the second sliding box 432 is fixedly provided with a second sliding block 442. The inner wall of the second guiding box 452 is provided with a second sliding channel 462. The second sliding block 442 can slide in the second sliding channel 462.

[0043] Further, the second sliding channel 462 comprises a first sliding groove 471 and a second sliding groove 472. The tail end of the first sliding groove 471 in the second sliding channel 462 is inclined to the lower left, i.e. Figure 11 the up-down direction and the left-right direction. The second sliding groove 472 in the second sliding channel 462 is in a curved structure. The curved opening of the second sliding groove 472 is towards the first sliding groove 471. Both ends of the second sliding groove 472 are in communication with the first sliding groove 471. In particular, the first sliding channel 461 and the second sliding channel 462 are symmetrical along the central axis of the heat conduction pipe 210.

[0044] In particular, the inner part of the first ring 421 and the inner part of the second ring 422 are provided with electromagnetic blocks 483. When the first ring 421 is attached to the first half ring sleeve 301 at the top end of the heat conduction pipe 210 and the second ring 422 is attached to the second half ring sleeve 302 at the top end of the heat conduction pipe 210, the electromagnetic blocks 483 in the inner part of the first ring 421 and the inner part of the second ring 422 will work.

[0045] Specifically, the first half-ring 301 and the second half-ring 302 rotate around the axial direction of the heat pipe 210, which drives the limiting rod 204 to rotate around its own axial direction through the first gear 231, thereby driving the second gear 232 and the third gear 233 to rotate synchronously, thus driving the reciprocating screw 202 to rotate around its own axial direction.

[0046] Furthermore, a reciprocating slide rail is provided on the reciprocating screw 202, and the sliding rod 203 is slidably connected to the reciprocating slide rail. When the reciprocating screw 202 rotates around its own axis and the first ring 421 is in contact with the first half-ring 301 located at the top of the heat pipe 210, and the second ring 422 is in contact with the second half-ring 302 located at the top of the heat pipe 210, the sliding rod 203 simultaneously slides upward along the axis of the reciprocating screw 202 within the reciprocating slide rail, that is... Figure 8 The vertical movement causes the first link 401 and the second link 402 to move upwards synchronously, which in turn causes the first link 411, the second link 412, the first ring 421, the second ring 422, the first sliding box 431, and the second sliding box 432 to slide upwards synchronously.

[0047] During this process, the first slider 441 slides upward and to the left along the second groove 472 in the first slide rail 461, and the second slider 442 slides upward and to the right along the second groove 472 in the second slide rail 462. Figure 9 The first ring 421 moves to the upper left and the second ring 422 moves to the upper right, moving in the up-down and left-right directions. During this process, the first connecting rod 401 and the second connecting rod 402 remain slidably connected to the sliding rod 203. Simultaneously, the electromagnetic blocks 483 inside the first ring 421 and the second ring 422 are energized, generating magnetic attraction. This causes the first ring 421 to move the first half-ring 301 at the top of the heat pipe 210 to the upper left, and the second ring 422 to move the second half-ring 302 at the top of the heat pipe 210 to the upper right. This causes the first half-ring 301 and the second half-ring 302 to detach from the entire spiral sleeve assembly, and the first half-ring 301 and the second half-ring 302 gradually separate from each other.

[0048] Subsequently, after sliding to the top of the reciprocating screw 202, the sliding direction of the sliding rod 203 changes, that is, it slides downward along the axial direction of the reciprocating screw 202. Figure 8 The first slider 441 slides downward along the first groove 471 in the first slide rail 461, causing the first ring 421 to move the first half-ring sleeve 301 downwards simultaneously; at the same time, the second slider 442 slides downward along the first groove 471 in the second slide rail 462, causing the second ring 422 to move the second half-ring sleeve 302 downwards simultaneously. Figure 9the first slider 441 slides to the end of the first sliding groove 471 in the first sliding groove 461, the first slider 441 slides along the first sliding groove 471 to the lower right, so that the first ring 421 drives the first half ring sleeve 301 to move to the lower right synchronously; at the same time, when the second slider 442 slides to the end of the first sliding groove 471 in the second sliding groove 462, the second slider 442 slides along the first sliding groove 471 to the lower left, so that the second ring 422 drives the second half ring sleeve 302 to move to the lower left synchronously, thereby making the first half ring sleeve 301 and the second half ring sleeve 302 gradually approach each other and re-embed in the bottom end of the heat conduction pipe 210. At this time, the power supply to the internal electromagnetic block 483 of the first ring 421 and the internal electromagnetic block 483 of the second ring 422 is cancelled, so that the magnetic force is lost.

[0049] Subsequently, due to the magnetic force of the internal magnet 333 of the first half ring sleeve 301 and the internal magnet 333 of the second half ring sleeve 302, the re-embedded first half ring sleeve 301 and the second half ring sleeve 302 are attracted by the upper first half ring sleeve 301 and the second half ring sleeve 302, and then move upward along the axial direction of the heat conduction pipe 210, that is, Figure 8 the up-down direction in the figure, so that the re-embedded first half ring sleeve 301 and the second half ring sleeve 302 are embedded with the upper first half ring sleeve 301 and the second half ring sleeve 302, and then the re-embedded first half ring sleeve 301 and the second half ring sleeve 302 re-enter the entire spiral sleeve assembly.

[0050] Subsequently, after the sliding rod 203 slides to the bottom end of the reciprocating screw rod 202, the sliding direction is changed, that is, it slides upward along the axial direction of the reciprocating screw rod 202, thereby driving the first rod 411, the second rod 412, the first sliding box 431 and the second sliding box 432 to slide upward synchronously, that is, Figure 8 the up-down direction in the figure, so that the first ring 421 and the second ring 422 are reset. In this process, when the first slider 441 slides to the connection between the first sliding groove 471 and the second sliding groove 472 in the first sliding groove 461, the first slider 441 slides along the second sliding groove 472 to the upper right, that is, Figure 9the first ring 421 gradually fits the first half ring sleeve 301 at the top end of the heat conduction pipe 210; at the same time, when the second sliding block 442 slides to the connection between the first sliding groove 471 and the second sliding groove 472 in the second sliding channel 462, the second sliding block 442 slides along the second sliding groove 472 to the upper left, so that the second ring 422 gradually fits the second half ring sleeve 302 at the top end of the heat conduction pipe 210, preparing for the next cycle. Therefore, the process is continuously cycled to ensure that the annealed metal wire 150 continuously and stably moves in the spiral flow channel 332. Further, the annealed metal wire 150 is spirally wound in the spiral flow channel 332, effectively increasing the contact area of the annealed metal wire 150 with the spiral flow channel 332 and the heat exchange time with the first half ring sleeve 301 and the second half ring sleeve 302, significantly improving the heat recovery and utilization efficiency.

[0051] In particular, the annealed metal wire 150 has good ductility and flexibility, can adapt to bending deformation in the spiral winding process, and will not break or be damaged due to bending deformation, ensuring the physical properties of the metal wire 150. At the same time, the annealed metal wire 150 in the spiral state will produce a certain vibration and friction during movement, which helps to further loosen and remove the impurity skin layer formed on the surface of the metal wire 150 during the annealing process, providing convenience for subsequent processes, and thus improving the overall processing efficiency and product quality.

[0052] In one embodiment, the first grabbing unit further comprises a first one-way plate 481, which is arranged in the first sliding channel 461 and is rotationally connected with the first guide box 451. The first grabbing unit further comprises a first torsion spring fixedly connected with the first guide box 451, and the first one-way plate 481 is rotationally connected with the first guide box 451 through the torsion spring. The first one-way plate 481 can only rotate downward, that is, Figure 9 the upward and downward directions and the left and right directions in the first ring 421. During the resetting process of the first ring 421, the first one-way plate 481 is used to ensure that the first sliding block 441 can slide along the right side slope of the second sliding groove 472 in the first sliding channel 461 during upward sliding of the first sliding block 441.

[0053] In one embodiment, the second grabbing unit further comprises a second one-way plate 482, which is arranged in the second sliding channel 462 and is rotationally connected with the second guide box 452. Further, the second grabbing unit further comprises a second torsion spring fixedly connected with the second guide box 452, and the second one-way plate 482 is rotationally connected with the second guide box 452 through the torsion spring. The second one-way plate 482 can only rotate downward, that is, Figure 9The up-and-down and left-and-right directions in the figure. In the resetting process of the second ring 422, the second one-way plate 482 is used to ensure that the second slider 442 can slide along the left inclined surface of the second sliding groove 472 in the second sliding channel 462 when the second slider 442 slides upward.

[0054] In one of the embodiments, the annealing box 110 is provided with a friction tube 220, which is arranged between the first guide wheel 251 and the second guide wheel 252 and is vertically fixed on the fourth plate 124. The friction tube 220 has a tapered structure, and the diameter of the friction tube 220 gradually decreases from bottom to top along the axial direction of the friction tube 220. Figure 6 The up-and-down direction in the figure. In addition, the friction tube 220 is internally provided with a friction channel extending along the axial direction of the friction tube 220. Specifically, when the annealed metal wire 150 passes into the friction channel from the end of the friction tube 220 with a larger diameter, the contact friction between the inner wall of the friction channel and the surface of the metal wire 150 can effectively clean the impurities formed on the surface of the metal wire 150 during the annealing process.

[0055] The working steps of the wire drawing annealing machine are as follows: S100, the unannealed metal wire 150 enters the installation slot 101 from the wire inlet 102, is guided by the first tensioning roller 104 and the second tensioning roller 105 located at the top of the annealing box 110, and is sent into the inside of the annealing box 110 through the wire inlet hole 111; S110, the unannealed metal wire 150 passes through the first channel 211 in the heat conduction pipe 210 for preheating treatment; S200, the unannealed metal wire 150 is heated to the required annealing temperature through the heating channel 207 in the heating cylinder 206; S210, the annealed metal wire 150 is guided by the first guide wheel 251 to the friction tube 220; S220, the annealed metal wire 150 passes through the friction channel in the friction tube 220 to clean the impurities formed on the surface of the metal wire 150 during the annealing process; S230, the annealed metal wire 150 is guided by the second guide wheel 252 and the fourth guide wheel 254 in turn, enters the spiral flow channel 332, and is wound several turns in the spiral flow channel 332; S300, the annealed metal wire 150 is wound in the spiral flow channel 332 and moves axially upward along the heat conduction pipe 210. In this process, the annealed metal wire 150 transmits part of the heat to the heat conduction pipe 210 through the first half ring sleeve 301 and the second half ring sleeve 302, and then the heat conduction pipe 210 conducts the heat to the unannealed metal wire 150 in the first channel 211, thereby achieving the preheating treatment of the unannealed metal wire 150; S310, the annealed metal wire 150 drives the first half ring sleeve 301 and the second half ring sleeve 302 to rotate and move up through friction, and drives the reciprocating screw rod 202 to rotate through the first gear 231, the second gear 232 and the third gear 233; S320, the first ring 421 and the second ring 422 capture the first half ring sleeve 301 and the second half ring sleeve 302 at the top end of the heat conduction pipe 210 respectively, and then separate and move to the bottom end of the heat conduction pipe 210 to be re-embedded; S400, after the annealed metal wire 150 is output from the spiral flow channel 332, it is guided by the third guide wheel 253, enters the mounting groove 101 through the wire outlet hole 112 of the annealing box 110; S500, the annealed metal wire 150 is guided through the remaining first tensioning roller 104 and the second tensioning roller 105 in the mounting groove 101 in sequence, and then passes out of the mounting groove 101 through the wire outlet 103; S510, the annealed metal wire 150 finally enters the water cooling box 140 matched with the wire drawing annealing machine.

[0056] The embodiment of the application also includes an annealing process of a wire drawing annealing machine, which is applied to the wire drawing annealing machine in any one of the above embodiments.

[0057] The technical features of the above embodiments can be combined in any way, and to make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0058] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A wire drawing and annealing machine, characterized in that, The utility model relates to an annealing device for metal wire rod, which comprises: a main shell with a mounting groove; an annealing box arranged in the mounting groove and fixedly connected with the main shell, the annealing box being provided with an inlet hole for feeding metal wire rod and an outlet hole for discharging metal wire rod, and an induction annealing furnace arranged inside the annealing box for annealing metal wire rod; a heat exchange assembly arranged inside the annealing box for heat exchange between annealed metal wire rod and unannealed metal wire rod.

2. The wire drawing and annealing machine according to claim 1, characterized in that, The heat exchange assembly comprises a heat-conducting pipe, a guide mechanism and two groups of support arms, the two groups of support arms being fixedly connected with the main shell and fixedly connected with two ends of the heat-conducting pipe respectively, the guide mechanism comprising a plurality of coaxially detachably connected spiral sleeve assemblies, the plurality of spiral sleeve assemblies being coaxially arranged outside the heat-conducting pipe, the heat-conducting pipe being provided with a first channel extending along the axial direction of the heat-conducting pipe inside the heat-conducting pipe, the first channel being used for passing unannealed metal wire rod, and when annealed metal wire rod passes through the spiral sleeve assembly, the heat carried by the annealed metal wire rod is transferred to the first channel, so that unannealed metal wire rod can be preheated.

3. The wire drawing and annealing machine according to claim 2, characterized in that, Each group of spiral sleeve assemblies comprises a first half ring sleeve and a second half ring sleeve, the first half ring sleeve and the second half ring sleeve being detachably connected, the first half ring sleeve and the second half ring sleeve being coaxially screwed with the heat-conducting pipe, the first half ring sleeve and the second half ring sleeve being capable of relative rotation and relative sliding with the heat-conducting pipe, the outer wall of the first half ring sleeve and the outer wall of the second half ring sleeve being provided with a second channel, the second channel extending spirally around the central axis of the heat-conducting pipe, the second channel on the outer wall of the first half ring sleeve and the second channel on the outer wall of the second half ring sleeve being symmetrically arranged and being in communication to form a spiral flow channel, and when annealed metal wire rod preheats unannealed metal wire rod by passing through the spiral flow channel, the guide mechanism is used for moving the first half ring sleeve and the second half ring sleeve at the top end of the heat-conducting pipe to the bottom end of the heat-conducting pipe.

4. The wire drawing and annealing machine according to claim 3, characterized in that, The guide mechanism comprises a driving unit, a first grabbing unit and a second grabbing unit, the driving unit comprises a limiting rod, a reciprocating wire rod and a sliding rod, two groups of the support arms are respectively arranged at two ends of the limiting rod, and the limiting rod can rotate relative to the two groups of the support arms; the first gear and the second gear are coaxially and fixedly arranged on the limiting rod, the first gear is engaged with the first half ring sleeve or the second half ring sleeve; two groups of the support arms are respectively arranged at two ends of the reciprocating wire rod, and the reciprocating wire rod can rotate relative to the two groups of the support arms; the third gear is coaxially and fixedly arranged on the reciprocating wire rod, and the third gear is engaged with the second gear; when the reciprocating wire rod rotates around the axis thereof, the sliding rod can slide along the axis of the reciprocating wire rod; the first grabbing unit is used for driving the first half ring sleeve located at the top end of the heat pipe to move to the bottom end of the heat pipe, and the second grabbing unit is used for driving the second half ring sleeve located at the top end of the heat pipe to move to the bottom end of the heat pipe.

5. The wire drawing and annealing machine according to claim 4, characterized in that, The first grabbing unit comprises a first connecting rod, a first guide box, a first sensing claw and a first sliding box, the first connecting rod is in sliding connection with the sliding rod, the first sensing claw comprises a first rod and a first ring, the first rod is fixedly connected with the first ring, and the first ring can slide and rotate relative to the first half ring sleeve or the second half ring sleeve; the first rod is fixedly connected with the first sliding box, and the first guide box is fixedly connected with the annealing box; a first sliding block is fixedly arranged on the outer wall of the first sliding box, a first sliding channel is formed in the inner wall of the first guide box, and the first sliding block can slide in the first sliding channel.

6. The wire drawing and annealing machine according to claim 4, characterized in that, The second grabbing unit comprises a second connecting rod, a second guide box, a second sensing claw and a second sliding box, the second connecting rod is in sliding connection with the sliding rod, the second sensing claw comprises a second rod and a second ring, the second rod is fixedly connected with the second ring, and the second ring can slide and rotate relative to the first half ring sleeve or the second half ring sleeve; the second rod is fixedly connected with the second sliding box, and the second guide box is fixedly connected with the annealing box; a second sliding block is fixedly arranged on the outer wall of the second sliding box, a second sliding channel is formed in the inner wall of the second guide box, and the second sliding block can slide in the second sliding channel.

7. The annealing machine according to claim 5, characterized in that, The first grabbing unit further comprises a first one-way plate, the first one-way plate is arranged in the first sliding channel, and the first one-way plate is in rotary connection with the first guide box.

8. The wire drawing and annealing machine according to claim 6, characterized in that, The second grabbing unit further comprises a second one-way plate, the second one-way plate is arranged in the second sliding channel, and the second one-way plate is in rotary connection with the second guide box.

9. The annealing machine of claim 1, wherein A friction tube is arranged in the annealing box, and the friction tube is used for cleaning impurities on the surface of the annealed metal wire.

10. Annealing process of a wire drawing annealing machine, applied to the wire drawing annealing machine according to any one of claims 1-9, characterized in that, The method comprises the following steps: S100, the unannealed metal wire is sent into the inside of the annealing box through the wire inlet hole; S200, the unannealed metal wire is annealed by the induction annealing furnace; S300, the annealed metal wire exchanges heat with the unannealed metal wire through the heat exchange assembly to preheat the unannealed metal wire; S400, the annealed metal wire is output through the wire outlet hole.

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