Metal wire heat treatment device

Abstract

The invention discloses a metal wire heat treatment device which comprises a heat treatment device body. A take-up device; the pay-off device comprises a pay-off wheel, a driving component, a first friction piece in transmission connection with the pay-off wheel, a rack, a first brake piece, a first pulley arranged on the first brake piece, a second brake piece, an elastic device and a second friction piece connected with the second brake piece, and a metal wire output by the pay-off wheel is conveyed to the heat treatment device after being wound around the first pulley; when the tension of the metal wire output by the first pulley is increased, the acting force of the metal wire on the first pulley drives the first brake piece to swing relative to the rack in the first direction, and the first brake piece drives the second brake piece to drive the pressing force between the first friction piece and the second friction piece to be reduced so that the rotating speed of the pay-off wheel can be increased. And when the tension of the metal wire output by the first pulley becomes smaller, the elastic device drives the second brake piece to drive the pressing force between the first friction piece and the second friction piece to be increased, so that the rotating speed of the pay-off wheel is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metal heat treatment devices, and in particular to a metal wire heat treatment device. Background Art

[0002] Heat treatment refers to a metal hot processing technology that obtains the expected structure and performance by heating, heat preservation and cooling the material in the solid state. Annealing, normalizing, quenching and tempering are the "four fires" in heat treatment. Annealing is to heat the workpiece to an appropriate temperature, use different heat preservation times according to the material and workpiece size, and then slowly cool it. The purpose is to make the internal structure of the metal reach or approach a state of equilibrium, obtain good process performance and use performance, or prepare the organization for further quenching. Normalizing is to heat the workpiece to a suitable temperature and then cool it in the air. The effect of normalizing is similar to annealing, but the obtained structure is finer. It is often used to improve the cutting performance of the material, and is sometimes used as the final heat treatment for some parts with low requirements. Quenching is to heat and keep the workpiece warm, and then quickly cool it in a quenching medium such as water, oil or other inorganic salts, organic aqueous solutions, etc. After quenching, the steel becomes hard, but also brittle. In order to eliminate the brittleness in time, it is generally necessary to temper it in time. In order to reduce the brittleness of steel parts, the quenched steel parts are kept warm for a long time at an appropriate temperature above room temperature and below 650°C, and then cooled. This process is called tempering. Common metals include non-ferrous metals such as iron, manganese, chromium and iron-based alloys, as well as some non-ferrous metals, or alloys composed of a non-ferrous metal matrix (usually with a content greater than 50%) and one or more other elements added to it. For the heat treatment of metal wires, such as the annealing heat treatment of non-ferrous metal wires, the wires need to be controlled to avoid contact with parts such as the furnace body and heating devices during the heat treatment process. The contact process may cause surface scratches or contamination. Therefore, it is necessary to ensure that the metal wires are tensioned during the entire pay-off process, heat treatment process and take-up process to minimize direct contact with surrounding parts that may cause impacts. For metal wire, if the tensioning force is too small, it is difficult to maintain the tensioning effect, resulting in unnecessary contact. If the tensioning force is too large, it may cause plastic deformation or breakage of the metal wire. Therefore, the tension of the metal wire during the heat treatment process needs to be maintained within a relatively appropriate range. Summary of the invention

[0003] The object of the present invention is to provide a metal wire material heat treatment device in which the tension during the heat treatment process is maintained within a relatively suitable range.

[0004] The present invention discloses a metal wire heat treatment device, comprising:

[0005] A heat treatment device for heat treating metal wire;

[0006] A wire taking-up device, used for receiving the heat-treated metal wire outputted from the heat treatment device;

[0007] A wire-releasing device for conveying metal wire to be heat-treated to the heat treatment device, comprising a wire-releasing wheel wound with metal wire and used to rotate to output the metal wire, a driving component for driving the wire-releasing wheel to rotate to output the metal wire, a first friction member drivingly connected to the wire-releasing wheel, a frame, a first brake member rotatably connected to the frame, a first pulley arranged on the first brake member, a second brake member rotatably connected to the frame, an elastic device connected between the second brake member and the frame, and a second friction member connected to the second brake member and frictionally matched with the first friction member, the first brake member and the second brake member are drivingly connected, the metal wire output by the wire-releasing wheel is conveyed to the heat treatment device after winding around the first pulley, and the wire-releasing device is configured The method is as follows: when the tension of the metal wire output by the first pulley increases, the force of the metal wire on the first pulley drives the first pulley and drives the first brake member to swing relative to the frame in a first direction through the first pulley; the first brake member swinging in the first direction drives the second brake member to swing in the second direction and drives the pressing force between the first friction member and the second friction member to decrease through the second brake member so as to increase the rotation speed of the pay-off wheel; when the tension of the metal wire output by the first pulley decreases, the elastic device drives the second brake member to swing in a direction opposite to the second direction and drives the pressing force between the first friction member and the second friction member to increase through the second brake member so as to reduce the rotation speed of the pay-off wheel.

[0008] In some embodiments, the first brake member includes an eccentric wheel hinged to the frame and a swing rod fixedly connected to the eccentric wheel, the first pulley includes a first fixed pulley arranged on the swing rod, the eccentric wheel is in contact with the second brake member, and when the first brake member swings along a first direction, the eccentric wheel rotates eccentrically and pushes the second brake member to swing along a second direction, and the elastic force of the elastic device causes the second brake member to tend to press the eccentric wheel.

[0009] In some embodiments, the first brake member and the second brake member are both hinged to the frame, the first pulley includes a first fixed pulley whose rotating shaft is arranged on the first brake member, and the wire-releasing device also includes a second fixed pulley and a third fixed pulley whose rotating shafts are arranged on the second brake member, the metal wire output by the wire-releasing wheel is sequentially conveyed to the heat treatment device after winding around the second fixed pulley, the third fixed pulley and the first fixed pulley, the winding directions of the metal wire around the second fixed pulley and the third fixed pulley are opposite, and the winding directions of the metal wire around the third fixed pulley and the first fixed pulley are opposite, and the pulling force of the metal wire output by the wire-releasing wheel to the second fixed pulley on the second fixed pulley relative to the lever arm of the hinge point between the second brake member and the frame is smaller than The pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the third fixed pulley is relative to the lever arm of the hinge point between the second brake member and the frame, and the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the third fixed pulley makes the third fixed pulley tend to swing along the second direction; the metal wire material outputted from the third fixed pulley to the first fixed pulley is located between the line connecting the center of the first fixed pulley and the hinge point between the first brake member and the frame and the metal wire material outputted from the first fixed pulley, and the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the first fixed pulley and the pulling force of the metal wire material outputted from the first fixed pulley on the first fixed pulley both make the first fixed pulley tend to swing along the first direction.

[0010] In some embodiments, the first brake member and the second brake member are both hinged to the frame, the first pulley includes a first fixed pulley with a rotating shaft arranged on the first brake member, the wire-releasing device also includes a second fixed pulley and a third fixed pulley with a rotating shaft arranged on the second brake member, the metal wire output by the wire-releasing wheel is sequentially conveyed to the heat treatment device after winding around the second fixed pulley, the third fixed pulley and the first fixed pulley, the winding directions of the metal wire around the second fixed pulley and the third fixed pulley are opposite, the winding directions of the metal wire around the third fixed pulley and the first fixed pulley are opposite, the centers of the second fixed pulley and the third fixed pulley are on the same straight line as the hinge point of the second brake member and the frame, and the pulling force of the metal wire output by the wire-releasing wheel to the second fixed pulley on the second fixed pulley The lever arm relative to the hinge point between the second brake member and the frame is smaller than the lever arm of the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the third fixed pulley relative to the hinge point between the second brake member and the frame, the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the third fixed pulley makes the third fixed pulley tend to swing along the second direction, the metal wire material outputted from the third fixed pulley to the first fixed pulley is located between the line connecting the center of the first fixed pulley and the hinge point between the first brake member and the frame and the metal wire material outputted from the first fixed pulley, and the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the first fixed pulley and the pulling force of the metal wire material outputted from the first fixed pulley on the first fixed pulley both make the first fixed pulley tend to swing along the first direction.

[0011] In some embodiments, the first friction member includes a friction wheel that is coaxial with and fixedly connected to the pay-off wheel, and the second friction member includes a friction rope that is fixedly connected to the frame and the second brake member at both ends respectively, and the friction rope is frictionally matched with the friction wheel.

[0012] In some embodiments, the heat treatment device includes a furnace chamber for heat treating metal wire and a first thin pipe and a second thin pipe respectively sealed to both ends of the furnace chamber. The metal wire is input into the furnace chamber through the first thin pipe, and the metal wire after heat treatment in the furnace chamber is output from the second thin pipe to the wire taking-up device, and the metal wire is not in contact with the first thin pipe and the second thin pipe.

[0013] In some embodiments, the furnace chamber includes a cylindrical heat insulation screen, a first heat insulation screen that seals the cylindrical heat insulation screen from above the cylindrical heat insulation screen, a second heat insulation screen that seals the cylindrical heat insulation screen from below the cylindrical heat insulation screen, and a heater arranged in a heat treatment chamber surrounded by the cylindrical heat insulation screen, the first heat insulation screen and the second heat insulation screen, the first heat insulation screen and the second heat insulation screen are provided with a first through hole and a second through hole, the metal wire output from the first capillary enters the heat treatment chamber through the first through hole, and the heat-treated metal wire is output from the second through hole to the second capillary.

[0014] In some embodiments, the heat treatment device includes a plurality of the first capillary pipes and a plurality of the second capillary pipes, the heat treatment device also includes an upper furnace tube and a lower furnace tube, the upper furnace tube surrounds the first capillary pipe, the lower furnace tube surrounds the second capillary pipe, the heat treatment device also includes a first water cooling device provided on the upper furnace tube for cooling the upper furnace tube and a second water cooling device provided on the lower furnace tube for cooling the lower furnace tube.

[0015] In some embodiments, the diameter of the channel of the first thin pipe and the second thin pipe for passing the metal wire is 8-10 mm, and an inert gas is introduced into the heat treatment chamber.

[0016] In some embodiments, a controller is also included, and the wire-taking device includes a wire-taking wheel for receiving and winding the metal wire and a motor connected to the controller signal for driving the wire-taking wheel to rotate, a first guide wheel, a second guide wheel and a speed sensor 321 connected to the controller signal, the speed sensor 321 is coaxial with the second guide wheel and fixedly connected, the metal wire output from the second capillary pipe bypasses the first guide wheel and the second guide wheel in sequence and then enters the wire-taking wheel, the number of turns of the metal wire around the second guide wheel is greater than or equal to 1, and the controller is configured to control the rotation of the motor according to the detection result of the speed sensor 321.

[0017] In some embodiments, a mover 35 connected to the controller signal is further included and arranged between the take-up wheel and the second guide wheel. The mover 35 includes a moving component 351 that reciprocates along the axial direction of the take-up wheel. The metal wire output from the second guide wheel passes through the moving component 351 and is input to the take-up wheel. The movement of the moving component 351 along the axial direction of the take-up wheel adjusts the position of the metal wire input to the take-up wheel along the axial direction of the take-up wheel.

[0018] Based on the metal wire heat treatment device provided by the present invention, when the tension of the metal wire released by the pay-off device increases, the metal wire can drive the first brake member to swing relative to the frame in a first direction through the force acting on the first pulley, drive the second brake member to swing and drive the pressing force between the first friction member and the second friction member to decrease so as to increase the rotation speed of the pay-off wheel, thereby increasing the speed at which the pay-off wheel releases the metal wire to reduce the tension of the metal wire. When the tension of the metal wire output by the first pulley decreases, the elastic device drives the second brake member to swing in a direction opposite to the second direction and drives the pressing force between the first friction member and the second friction member to increase through the second brake member so as to reduce the rotation speed of the pay-off wheel, thereby reducing the speed at which the pay-off wheel releases the metal wire to increase the tension of the metal wire.

[0019] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 It is a schematic structural diagram of a wire pay-off device of a metal wire material heat treatment device according to an embodiment of the present invention;

[0022] Figure 2 A schematic structural diagram of a partial structure of a wire pay-off device of a metal wire heat treatment device according to another embodiment of the present invention;

[0023] Figure 3 A schematic structural diagram of a partial structure of a heat treatment device for a metal wire material heat treatment device according to another embodiment of the present invention;

[0024] Figure 4 A schematic structural diagram of a partial structure of a heat treatment device for a metal wire material heat treatment device according to another embodiment of the present invention;

[0025] Figure 5 A schematic structural diagram of a partial structure of a heat treatment device for a metal wire material heat treatment device according to another embodiment of the present invention;

[0026] Figure 6 It is a schematic structural diagram of a wire take-up device of a metal wire heat treatment device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0029] In the description of the present invention, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] The metal wire heat treatment device of this embodiment includes a heat treatment device, a wire taking-up device and a wire unwinding device 1 .

[0033] The heat treatment device is used to heat treat the metal wire 100. The heat treatment includes annealing and other heat treatments as mentioned above. The wire take-up device is used to receive the heat-treated metal wire 100 output from the heat treatment device. When working, the wire pay-off device 1 releases the metal wire, and the metal wire is collected by the wire take-up device through the heat treatment device.

[0034] The pay-off device 1 is used to convey the metal wire 100 to be heat-treated to the heat treatment device, and the pay-off device 1 comprises a pay-off wheel 11, a driving component 12, a first friction member 131, a frame 14, a first brake member 151, a first pulley, a second brake member 152, an elastic device 1522 and a second friction member 132. The pay-off wheel 11 is wound with the metal wire 100 and is used to rotate to output the metal wire 100. The driving component 12 is used to drive the pay-off wheel 11 to rotate to output the metal wire 100, and the driving component 12 comprises driving components such as a driving motor and a driving motor. The first friction member 131 is transmission connected to the pay-off wheel 11, that is, the first friction member 131 and the pay-off wheel 11 transmit transmission to each other. In the embodiment as shown in the figure, the first friction member 131 and the pay-off wheel 11 are coaxially fixedly connected. In some embodiments not shown in the figure, the first friction member 131 and the pay-off wheel 11 can also be transmission connected via an intermediate transmission mechanism, so that the first friction member 131 and the pay-off wheel 11 maintain a fixed transmission ratio or the rotation speeds of the first friction member 131 and the pay-off wheel 11 are positively correlated with each other. The first brake member 151 is rotatably connected to the frame 14, the first pulley is arranged on the first brake member 151, the second brake member 152 is rotatably connected to the frame 14, the elastic device 1522 is connected between the second brake member 152 and the frame 14, the second friction member 132 is connected to the second brake member 152 and is frictionally matched with the first friction member 131, one end of the second friction member 132 is connected to the second brake member 152, and the other end can be connected to the frame or the first friction member 131, the second friction member 132 and the first friction member 131 are in contact, and friction is generated between the two during operation. The first brake member 151 and the second brake member 152 are drivingly connected, that is, the first brake member 151 can drive the second brake member 152 to move when in action. The metal wire 100 output by the pay-off wheel 11 is transported to the heat treatment device after passing around the first pulley.

[0035] The pay-off device 1 is configured as follows: when the tension of the metal wire 100 outputted by the first pulley increases, the force of the metal wire 100 on the first pulley drives the first pulley to swing and drives the first brake member 151 to swing relative to the frame 14 in the first direction through the first pulley, and the first brake member 151 swinging in the first direction drives the second brake member 152 to swing in the second direction and drives the pressing force between the first friction member 131 and the second friction member 132 to decrease through the second brake member 152 so as to increase the rotation speed of the pay-off wheel 11. The first direction and the second direction may be the same or different. In the embodiment shown in the figure, the first direction is clockwise and the second direction is counterclockwise. The second brake member 152 drives the pressing force between the first friction member 131 and the second friction member 132 to decrease, that is, the friction between the first friction member 131 and the second friction member 132 is reduced, so that the resistance of the first friction member 131 to the rotation of the pay-off wheel 11 is reduced, the rotation speed of the pay-off wheel 11 is increased, and the speed of outputting the metal wire is accelerated, thereby reducing the tension of the metal wire.

[0036] When the tension of the metal wire 100 outputted from the first pulley decreases, the elastic device 1522 drives the second brake member 152 to swing in the direction opposite to the second direction and drives the pressing force between the first friction member 131 and the second friction member 132 to increase through the second brake member 152 so as to reduce the rotation speed of the pay-off wheel 11. When the tension of the metal wire 100 decreases, the force of the metal wire 100 on the first pulley also decreases, the force obtained by the first pulley to make the first brake member tend to swing in the first direction decreases, the force transmitted from the first brake member to the second brake member to make the second brake member tend to swing in the second direction decreases, the elastic force of the elastic device 1522 connected between the second brake member 152 and the frame 14 makes the second brake member tend to swing in the direction opposite to the second direction, so that the second brake member swings in the direction opposite to the second direction, the pressing force between the first friction member 131 and the second friction member 132 increases, the friction force increases, the rotation speed of the pay-off wheel 11 decreases, the speed of releasing the metal wire by the pay-off wheel 11 slows down, and the tension of the metal wire increases.

[0037] In the metal wire heat treatment device of this embodiment, when the tension of the metal wire 100 released by the pay-off device 1 increases, the metal wire 100 can drive the first brake member 151 to swing relative to the frame 14 in the first direction through the force acting on the first pulley, drive the second brake member 152 to swing and drive the pressing force between the first friction member 131 and the second friction member 132 to decrease, so that the rotation speed of the pay-off wheel 11 increases, thereby increasing the speed at which the pay-off wheel 11 releases the metal wire 100 to reduce the tension of the metal wire 100. When the tension of the metal wire 100 output by the first pulley decreases, the elastic device 1522 drives the second brake member 152 to swing in a direction opposite to the second direction and drives the pressing force between the first friction member 131 and the second friction member 132 to increase through the second brake member 152, so that the rotation speed of the pay-off wheel 11 decreases, thereby reducing the speed at which the pay-off wheel 11 releases the metal wire 100 to increase the tension of the metal wire 100. Thereby, the metal wire can be kept within a suitable range, the metal wire can maintain a suitable tensioning effect, and unnecessary contact can be caused, while excessive tensioning force can be avoided to avoid plastic deformation or breaking of the metal wire.

[0038] In some embodiments, Figure 2 As shown, the first brake member 151 includes an eccentric wheel 1512 hinged to the frame 14 and a swing rod 1511 fixedly connected to the eccentric wheel 1512. The first pulley includes a first fixed pulley 161 arranged on the swing rod 1511, the eccentric wheel 1512 is in contact with the second brake member 152, when the first brake member 151 swings in the first direction, the eccentric wheel 1512 rotates eccentrically and pushes the second brake member 152 to swing in the second direction, and the elastic force of the elastic device 1522 makes the second brake member 152 tend to press the eccentric wheel 1512. In the embodiment shown in the figure, the eccentric wheel is hinged to the frame through the eccentric rotating shaft 1513, the second brake member 152 is hinged to the frame through the brake hinge point 1521, and the elastic device 1522 is a tension spring, which provides tension to the second brake member, so that the second brake member 152 tends to press the eccentric wheel 1512. In some embodiments not shown in the figures, the elastic device 1522 may also be a compression spring, which provides thrust to the second brake member, so that the second brake member 152 tends to press the eccentric wheel 1512. When the tension of the metal wire increases, the metal wire drives the first brake member 151 to swing in the first direction by exerting force on the first fixed pulley 161, thereby pushing the eccentric wheel 1512 to swing in the first direction around the eccentric rotating shaft 1513, and the eccentric wheel presses the second brake member, so that the second brake member swings in the second direction around the brake hinge point 1521.

[0039] In some embodiments, Figure 1 and Figure 2As shown, the first brake member 151 and the second brake member 152 are both hinged to the frame 14, the first pulley includes a first fixed pulley 161, the rotation axis of the first fixed pulley 161 is arranged on the first brake member 151, the wire-releasing device 1 also includes a second fixed pulley 162 and a third fixed pulley 163, the rotation axes of the second fixed pulley 162 and the third fixed pulley 163 are arranged on the second brake member 152, and the metal wire 100 output by the wire-releasing wheel 11 is sequentially conveyed to the heat treatment device after winding around the second fixed pulley 162, the third fixed pulley 163 and the first fixed pulley 161. The winding directions of the metal wire 100 around the second fixed pulley 162 and the third fixed pulley 163 are opposite, as shown in FIG. Figure 2In the illustrated embodiment, the metal wire 100 is wound around the third fixed pulley 163 and the first fixed pulley 161 in opposite directions, the metal wire 100 is wound around the second fixed pulley 162 in a clockwise direction, the metal wire 100 is wound around the second fixed pulley 162 in a counterclockwise direction, and the metal wire 100 is wound around the first fixed pulley 161 in a clockwise direction. The pulling force of the metal wire 100 output by the pay-off wheel 11 to the second fixed pulley 162 on the second fixed pulley 162 relative to the hinge point of the second brake member 152 and the frame 14 is smaller than the pulling force of the metal wire 100 output by the third fixed pulley 163 to the first fixed pulley 161 on the third fixed pulley 163 relative to the hinge point of the second brake member 152 and the frame 14, that is, the pulling force F1 of the metal wire 100 between the pay-off wheel 11 and the second fixed pulley 162 output by the pay-off wheel 11 and the pulling force F2 of the metal wire 100 between the third fixed pulley 163 and the first fixed pulley 161 output by the third fixed pulley 163 on the third fixed pulley 163, the lever arm of F1 relative to the hinge point of the second brake member 152 and the frame 14 is smaller than the lever arm of F2 relative to the hinge point of the second brake member 152 and the frame 14. The pulling force of the metal wire 100 outputted from the third fixed pulley 163 to the first fixed pulley 161 on the third fixed pulley 163 causes the third fixed pulley 163 to tend to swing along the second direction. The metal wire material outputted from the third fixed pulley to the first fixed pulley is located between a line connecting the center of the first fixed pulley and the hinge point between the first brake member and the frame, and the metal wire material outputted from the first fixed pulley, that is, a line connecting the hinge point between the first brake member 151 and the frame 14 and the center of the first fixed pulley 161. An angle less than 180 degrees is formed between the line and the metal wire material 100 outputted from the first fixed pulley 161. The metal wire material 100 outputted from the third fixed pulley 163 to the first fixed pulley 161 is located between the angles. The pulling force of the metal wire material 100 outputted from the third fixed pulley 163 to the first fixed pulley 161 on the first fixed pulley 161 and the pulling force of the metal wire material 100 outputted from the first fixed pulley 161 on the first fixed pulley 161 both cause the first fixed pulley 161 to tend to swing along the first direction. In this embodiment, by setting the second fixed pulley and the third fixed pulley, and arranging the positional relationship between the second fixed pulley, the third fixed pulley and the first fixed pulley, the total force of the metal wire material output from the pay-off wheel and input to the first fixed pulley on the second brake member makes the second brake member have a tendency to swing in the second direction, so that when the tension of the metal wire material increases, the second brake member can react and swing more sensitively. In addition, the setting of the third fixed pulley increases the force arm of the metal wire material entering the first fixed pulley on the first fixed pulley relative to the hinge point of the first brake member and the frame, and the force arm can be conveniently and effectively adjusted by adjusting the position of the third fixed pulley, so that the first brake member reacts more sensitively to the increase of the metal wire material.

[0040] In some embodiments, Figure 2As shown, the first brake member 151 and the second brake member 152 are both hinged to the frame 14, the first pulley includes a first fixed pulley 161 whose rotating shaft is arranged on the first brake member 151, and the wire-releasing device 1 also includes a second fixed pulley 162 and a third fixed pulley 163 whose rotating shaft is arranged on the second brake member 152. The metal wire 100 output by the wire-releasing wheel 11 is sequentially conveyed to the heat treatment device around the second fixed pulley 162, the third fixed pulley 163 and the first fixed pulley 161, and the metal wire The winding directions of the wire material 100 around the second fixed pulley 162 and the third fixed pulley 163 are opposite, and the winding directions of the wire material 100 around the third fixed pulley 163 and the first fixed pulley 161 are opposite. The center of the second fixed pulley 162 and the center of the third fixed pulley 163 are located on the same straight line as the hinge point of the second brake member 152 and the frame 14. The pulling force of the wire material 100 outputted from the pay-off wheel 11 to the second fixed pulley 162 on the second fixed pulley 162 is relatively large relative to the second brake member 152. The arm of the hinge point between the third fixed pulley 163 and the frame 14 is smaller than the arm of the tension of the metal wire 100 outputted from the third fixed pulley 163 to the first fixed pulley 161 on the third fixed pulley 163 relative to the arm of the hinge point between the second brake member 152 and the frame 14. The tension of the metal wire 100 outputted from the third fixed pulley 163 to the first fixed pulley 161 on the third fixed pulley 163 makes the third fixed pulley 163 tend to swing in the second direction. The metal wire 100 is located between the line connecting the center of the first fixed pulley 161 and the hinge point of the first brake member 151 and the frame 14 and the metal wire 100 output by the first fixed pulley 161, and the tension of the metal wire 100 output to the first fixed pulley 161 by the third fixed pulley 163 and the tension of the metal wire 100 output by the first fixed pulley 161 on the first fixed pulley 161 both make the first fixed pulley 161 tend to swing along the first direction. The arrangement of the first fixed pulley, the second fixed pulley and the third fixed pulley of this embodiment is convenient and simple, and enables the first brake member and the second brake member to react more sensitively to the tension change of the metal wire.

[0041] In some embodiments, Figure 1 As shown, the first friction member 131 comprises a friction wheel coaxially and fixedly connected to the pay-off wheel 11, and the second friction member 132 comprises a friction rope whose two ends are respectively fixedly connected to the frame 14 and the second brake member 152, and the friction rope is frictionally matched with the friction wheel. The friction rope comprises a cowhide rope.

[0042] In some embodiments, Figures 3 to 5As shown, the heat treatment device includes a furnace chamber 21 for heat treatment of a metal wire 100 and a first thin pipe 221 and a second thin pipe 222 respectively connected to both ends of the furnace chamber 21 in a sealed manner. The metal wire 100 is input into the furnace chamber 21 through the first thin pipe 221, and the metal wire 100 after heat treatment in the furnace chamber 21 is output to the wire take-up device from the second thin pipe 222, and the metal wire 100 is not in contact with the first thin pipe 221 and the second thin pipe 222. During the heat treatment, an inert gas is filled into the furnace chamber 21, and the arrangement of the first thin pipe 221 and the second thin pipe 222 can effectively prevent the inert gas from overflowing.

[0043] In some embodiments, Figure 3 As shown, the furnace chamber 21 includes a cylindrical heat shield 211, a first heat shield 212 that seals the cylindrical heat shield 211 from the top of the cylindrical heat shield 211, a second heat shield 213 that seals the cylindrical heat shield 211 from the bottom of the cylindrical heat shield 211, and a heater arranged in a heat treatment chamber surrounded by the cylindrical heat shield 211, the first heat shield 212, and the second heat shield 213. In the embodiment shown in the figure, the cylindrical heat shield 211 includes a front heat shield and a rear heat shield. The first heat shield 212 and the second heat shield 213 are provided with a first through hole 214 and a second through hole 215. The metal wire 100 output from the first thin pipe 221 enters the heat treatment chamber through the first through hole 214. The heat treatment chamber is filled with inert gas. The metal wire is heat treated in the heat treatment chamber. The heat-treated metal wire 100 is output from the second through hole 215 to the second thin pipe 222. This embodiment limits the temperature zone to a very small range in the furnace chamber by setting four groups of heat insulation screens in the front, back, top and bottom, so as to facilitate the temperature balance control of the temperature zone. The temperature zone is in the furnace chamber, and the preheated inert gas is introduced into the furnace chamber. The furnace chamber is in a slightly positive pressure state. The furnace chamber atmosphere is clean during the annealing and other heat treatment processes of the metal wire. In addition, the heater is an electric heater, and the heating method is electric heating without other fuels, so as to ensure that the metal wire is not oxidized by the heat source or polluted by the furnace chamber atmosphere.

[0044] In some embodiments, the heat treatment device includes a plurality of first thin pipes 221 and a plurality of second thin pipes 222, and the heat treatment device also includes an upper furnace tube 23 and a lower furnace tube 24, wherein the upper furnace tube 23 surrounds the first thin pipe 221, and the lower furnace tube 24 surrounds the second thin pipe 222, and the heat treatment device also includes a first water cooling device 251 provided on the upper furnace tube 23 for cooling the upper furnace tube 23 and a second water cooling device 252 provided on the lower furnace tube 24 for cooling the lower furnace tube 24. The plurality of first thin pipes 221 and the plurality of second thin pipes 222 are provided with a plurality of wire release devices and a plurality of wire take-up devices, each of which corresponds to a metal wire, and the heat treatment device of this embodiment can heat treat a plurality of metal wires at the same time. At the same time, due to the provision of the first water cooling device 251, the metal wire can be prevented from being disturbed by high temperature before entering the furnace chamber, and the metal wire can be prevented from being heat treated in advance before entering the furnace chamber, so that the metal wire can enter the furnace chamber at room temperature. The provision of the second water cooling device 252 can also enable the metal wire to quickly recover to normal temperature for output.

[0045] In some embodiments, the diameter of the first thin pipe 221 and the second thin pipe 222 for passing the metal wire 100 is 8 to 10 mm, and an inert gas is introduced into the heat treatment chamber. For non-ferrous metal wires, their diameters are mostly 0.1 to 1 mm. The diameter range of the first thin pipe 221 and the second thin pipe 222 helps prevent the metal wire passing through the channel from contacting the pipe wall, and at the same time helps prevent the inert gas from overflowing.

[0046] In some embodiments, Figure 6 As shown, the wire-taking device further includes a controller, the wire-taking device includes a wire-taking wheel 33 for receiving and winding the metal wire 100, a motor 34 connected to the controller signal for driving the wire-taking wheel 33 to rotate, a first guide wheel 31, a second guide wheel 32, and a speed sensor 321 connected to the controller signal, the speed sensor 321 is coaxial with the second guide wheel 32 and fixedly connected, the metal wire 100 output from the second fine pipe 222 passes through the first guide wheel 31 and the second guide wheel 32 in sequence and then enters the wire-taking wheel 33, the number of turns of the metal wire 100 around the second guide wheel 32 is greater than or equal to 1, and the controller is configured to control the rotation of the motor 34 according to the detection result of the speed sensor 321. The setting of the first guide wheel enables the rotation of the second guide wheel to be smoother, the speed sensor 321 includes an angle sensor, and when the number of turns of the metal wire around the second guide wheel 32 is greater than 1, the movement of the metal wire drives the rotation of the second guide wheel to be more sensitive, and the rotation linear speed of the second guide wheel can more sensitively reflect the moving speed of the metal wire. By detecting the rotation speed of the second guide wheel and calculating the linear speed of the second guide wheel through the speed sensor 321, the controller can reasonably control the rotation speed of the take-up wheel 33.

[0047] In some embodiments, Figure 6As shown, the invention also includes a mover 35 connected to the controller signal and arranged between the take-up wheel 33 and the second guide wheel 32. The mover 35 includes a moving component 351 that reciprocates along the axial direction of the take-up wheel 33. The metal wire 100 output from the second guide wheel 32 is input to the take-up wheel 33 after passing through the moving component 351. The movement of the moving component 351 along the axial direction of the take-up wheel 33 adjusts the position of the metal wire 100 input to the take-up wheel 33 along the axial direction of the take-up wheel 33. The moving speed and moving direction of the moving component 351 along the axial direction of the take-up wheel 33 are controlled by the controller. The movement of the moving component can move the metal wire along the axial direction of the take-up wheel 33, thereby changing the distribution position of the metal wire on the take-up wheel when the take-up wheel takes up the wire, so that the metal wire can be evenly distributed on the take-up wheel. In the embodiment shown in the figure, the moving component includes a fixed pulley with an annular groove on the outer circumference, the annular groove is coaxial with the fixed pulley and the axial direction is the same as the axial direction of the take-up wheel 33, and the metal wire is moved by the movement of the fixed pulley.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A metal wire heat treatment device, characterized in that: include: A heat treatment device for heat treating metal wire; A wire taking-up device, used for receiving the heat-treated metal wire outputted from the heat treatment device; A wire-releasing device for conveying metal wire to be heat-treated to the heat treatment device, comprising a wire-releasing wheel wound with metal wire and used to rotate to output the metal wire, a driving component for driving the wire-releasing wheel to rotate to output the metal wire, a first friction member drivingly connected to the wire-releasing wheel, a frame, a first brake member rotatably connected to the frame, a first pulley arranged on the first brake member, a second brake member rotatably connected to the frame, an elastic device connected between the second brake member and the frame, and a second friction member connected to the second brake member and frictionally matched with the first friction member, the first brake member and the second brake member are drivingly connected, the metal wire output by the wire-releasing wheel is conveyed to the heat treatment device after winding around the first pulley, and the wire-releasing device is configured The method is as follows: when the tension of the metal wire output by the first pulley increases, the force of the metal wire on the first pulley drives the first pulley and drives the first brake member to swing relative to the frame in a first direction through the first pulley; the first brake member swinging in the first direction drives the second brake member to swing in the second direction and drives the pressing force between the first friction member and the second friction member to decrease through the second brake member so as to increase the rotation speed of the pay-off wheel; when the tension of the metal wire output by the first pulley decreases, the elastic device drives the second brake member to swing in a direction opposite to the second direction and drives the pressing force between the first friction member and the second friction member to increase through the second brake member so as to reduce the rotation speed of the pay-off wheel.

2. The metal wire heat treatment device according to claim 1, characterized in that: The first brake member includes an eccentric wheel hinged to the frame and a swing rod fixedly connected to the eccentric wheel, the first pulley includes a first fixed pulley arranged on the swing rod, the eccentric wheel is in contact with the second brake member, when the first brake member swings along a first direction, the eccentric wheel rotates eccentrically and pushes the second brake member to swing along a second direction, and the elastic force of the elastic device causes the second brake member to tend to press the eccentric wheel.

3. The metal wire heat treatment device according to claim 1, characterized in that: The first brake member and the second brake member are both hinged to the frame, the first pulley includes a first fixed pulley with a rotating shaft arranged on the first brake member, the wire-releasing device also includes a second fixed pulley and a third fixed pulley with a rotating shaft arranged on the second brake member, the metal wire output by the wire-releasing wheel is sequentially conveyed to the heat treatment device after winding around the second fixed pulley, the third fixed pulley and the first fixed pulley, the winding directions of the metal wire around the second fixed pulley and the third fixed pulley are opposite, the winding directions of the metal wire around the third fixed pulley and the first fixed pulley are opposite, the pulling force of the metal wire output by the wire-releasing wheel to the second fixed pulley on the second fixed pulley relative to the lever arm of the hinge point between the second brake member and the frame is smaller than that of the third fixed pulley The pulling force of the metal wire material outputted from the fixed pulley to the first fixed pulley on the third fixed pulley is relative to the lever arm of the hinge point between the second brake member and the frame, and the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the third fixed pulley makes the third fixed pulley tend to swing along the second direction, the metal wire material outputted from the third fixed pulley to the first fixed pulley is located between the line connecting the center of the first fixed pulley and the hinge point between the first brake member and the frame and the metal wire material outputted from the first fixed pulley, and the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the first fixed pulley and the pulling force of the metal wire material outputted from the first fixed pulley on the first fixed pulley both make the first fixed pulley tend to swing along the first direction.

4. The metal wire heat treatment device according to claim 1, characterized in that: The first brake member and the second brake member are both hinged to the frame, the first pulley includes a first fixed pulley whose rotating shaft is arranged on the first brake member, and the wire-releasing device also includes a second fixed pulley and a third fixed pulley whose rotating shafts are arranged on the second brake member, the metal wire output by the wire-releasing wheel is sequentially conveyed to the heat treatment device after winding around the second fixed pulley, the third fixed pulley and the first fixed pulley, the winding directions of the metal wire around the second fixed pulley and the third fixed pulley are opposite, the winding directions of the metal wire around the third fixed pulley and the first fixed pulley are opposite, the centers of the second fixed pulley and the third fixed pulley are on the same straight line as the hinge point of the second brake member and the frame, and the pulling force of the metal wire output by the wire-releasing wheel to the second fixed pulley on the second fixed pulley is relative to the The lever arm of the hinge point between the second brake member and the frame is smaller than the lever arm of the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the third fixed pulley relative to the hinge point between the second brake member and the frame, the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the third fixed pulley makes the third fixed pulley tend to swing along the second direction, the metal wire material outputted from the third fixed pulley to the first fixed pulley is located between the line connecting the center of the first fixed pulley and the hinge point between the first brake member and the frame and the metal wire material outputted from the first fixed pulley, and the pulling force of the metal wire material outputted from the third fixed pulley to the first fixed pulley on the first fixed pulley and the pulling force of the metal wire material outputted from the first fixed pulley on the first fixed pulley both make the first fixed pulley tend to swing along the first direction.

5. The metal wire material heat treatment device according to claim 1, characterized in that: The first friction member includes a friction wheel that is coaxial with and fixedly connected to the pay-off wheel, and the second friction member includes a friction rope whose two ends are respectively fixedly connected to the frame and the second brake member, and the friction rope is frictionally matched with the friction wheel.

6. The metal wire heat treatment device according to any one of claims 1 to 5, characterized in that: The heat treatment device includes a furnace chamber for heat treating metal wires and a first thin pipe and a second thin pipe respectively sealed to the two ends of the furnace chamber. The metal wire is input into the furnace chamber through the first thin pipe, and the metal wire after heat treatment in the furnace chamber is output from the second thin pipe to the wire take-up device. The metal wire is not in contact with the first thin pipe and the second thin pipe.

7. The metal wire material heat treatment device according to claim 6, characterized in that: The furnace chamber includes a cylindrical heat insulation screen, a first heat insulation screen that seals the cylindrical heat insulation screen from above, a second heat insulation screen that seals the cylindrical heat insulation screen from below, and a heater arranged in a heat treatment chamber surrounded by the cylindrical heat insulation screen, the first heat insulation screen and the second heat insulation screen. The first heat insulation screen and the second heat insulation screen are provided with a first through hole and a second through hole. The metal wire material output from the first thin pipe enters the heat treatment chamber through the first through hole, and the heat-treated metal wire material is output from the second through hole to the second thin pipe.

8. The metal wire material heat treatment device according to claim 6, characterized in that: The heat treatment device includes a plurality of the first thin pipes and a plurality of the second thin pipes, the heat treatment device also includes an upper furnace tube and a lower furnace tube, the upper furnace tube surrounds the first thin pipe, the lower furnace tube surrounds the second thin pipe, the heat treatment device also includes a first water cooling device provided on the upper furnace tube for cooling the upper furnace tube and a second water cooling device provided on the lower furnace tube for cooling the lower furnace tube.

9. The metal wire material heat treatment device according to claim 7, characterized in that: The diameter of the channel for passing the metal wire in the first thin pipe and the second thin pipe is 8-10 mm, and an inert gas is introduced into the heat treatment chamber.

10. The metal wire heat treatment device according to claim 1, characterized in that: It also includes a controller, and the wire-taking device includes a wire-taking wheel for receiving and winding the metal wire and a motor connected to the controller signal for driving the wire-taking wheel to rotate, a first guide wheel, a second guide wheel and a speed sensor 321 connected to the controller signal, the speed sensor 321 is coaxial with the second guide wheel and fixedly connected, the metal wire output from the second capillary pipe bypasses the first guide wheel and the second guide wheel in sequence and then enters the wire-taking wheel, the number of turns of the metal wire around the second guide wheel is greater than or equal to 1, and the controller is configured to control the rotation of the motor according to the detection result of the speed sensor 321.

11. The metal wire material heat treatment device according to claim 10, characterized in that: It also includes a mover 35 disposed between the take-up wheel and the second guide wheel and connected to the controller signal, the mover 35 includes a moving component 351 that reciprocates along the axial direction of the take-up wheel, the metal wire output from the second guide wheel passes through the moving component 351 and is input to the take-up wheel, and the movement of the moving component 351 along the axial direction of the take-up wheel adjusts the position of the metal wire input to the take-up wheel along the axial direction of the take-up wheel.

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