Heating device for wire drawing

Abstract

The utility model provides a heating device for wiredrawing, which comprises a furnace body, a heating cavity is arranged in the furnace body, and a plurality of temperature zones are arranged in the heating cavity along the moving direction of wiredrawing; the heating piece is positioned in the heating cavity; the air outlet pipe is communicated with the heating cavity; the plurality of air inlet pipes are communicated with the heating cavity, and any temperature area is communicated with at least one air inlet pipe; and the temperature sensors are used for detecting the temperature in the heating cavity, and at least one temperature sensor is arranged in any temperature zone. According to the utility model, the heating cavity is partitioned, the air inlet pipe and the temperature sensor are configured for each temperature zone, the temperature of the corresponding temperature zone is measured through the temperature sensor, and the temperature of the corresponding temperature zone is adjusted by finely adjusting the air inlet amount of the air inlet pipe, so that the temperature difference of each temperature zone is reduced; and the temperature balance in the heating cavity is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of wire drawing, in particular to a heating device for wire drawing. Background Art

[0002] Tungsten diamond wire has excellent cutting function and is widely used in the photovoltaic and wire industries. In order to improve the performance of tungsten diamond wire, such as hardness, wear resistance, toughness, etc., tungsten diamond wire needs to be heat treated. Heat treatment can also eliminate internal stress and defects and improve the machining performance of tungsten steel.

[0003] Tungsten diamond wire needs to be heat treated during drawing, but the temperature in the cavity of the existing heat treatment device is uneven and the temperature control is unstable, which will cause the tungsten diamond wire to be heated unevenly during the drawing process, resulting in breakage or a significant reduction in the drawing quality.

[0004] In view of this, it is necessary to provide a heating device for wire drawing to solve the above technical problems. Utility Model Content

[0005] In order to achieve the above-mentioned purpose, the utility model provides a heating device for wire drawing, including a furnace body, in which a heating chamber is provided, wherein the heating chamber has several temperature zones arranged along the wire drawing movement direction; a heating element located in the heating chamber; an air outlet pipe connected to the heating chamber; several air inlet pipes connected to the heating chamber, any of the temperature zones is connected to at least one of the air inlet pipes; and a temperature sensor for detecting the temperature in the heating chamber, wherein any of the temperature zones has at least one such temperature sensor.

[0006] As a further improvement of the present invention, the heating element is located on one side of the heating chamber along the height direction, and the air inlet pipe includes a first air inlet pipe, which is connected to the side of the heating chamber where the heating element is provided, and an air volume adjustment element is provided on the first air inlet pipe.

[0007] As a further improvement of the present invention, the air inlet pipe also includes a second air inlet pipe, the first air inlet pipe and the second air inlet pipe are respectively connected to the top and bottom of the furnace body, and the number of the first air inlet pipes is greater than or equal to the number of the second air inlet pipes.

[0008] As a further improvement of the present invention, any of the temperature zones is connected to one of the second air inlet pipes and several of the first air inlet pipes, and the several first air inlet pipes connected to the same temperature zone are spaced apart along the second direction, and the second direction is perpendicular to the wire drawing movement direction.

[0009] As a further improvement of the present invention, the temperature sensor is provided in a one-to-one correspondence with the first air intake pipe, and the temperature sensor is provided in a preset area around the first air intake pipe.

[0010] As a further improvement of the present invention, the temperature sensor in any temperature zone is located between the first air inlet pipe and the air outlet pipe connected to the temperature zone.

[0011] As a further improvement of the present invention, the furnace body includes a wire inlet for wire drawing and a wire outlet for wire drawing, and the distance between the air outlet pipe and the wire inlet is smaller than the distance between the air outlet pipe and the wire outlet.

[0012] As a further improvement of the present invention, the second air inlet pipe includes an air inlet section, a diversion section connected to the air inlet section, and a plurality of air outlets provided on the diversion section, and the diversion section is H-shaped.

[0013] As a further improvement of the present invention, the furnace body includes an upper shell and a lower shell, and the upper shell and the lower shell enclose to form the heating chamber;

[0014] The air outlet pipe, the first air inlet pipe and the heating element are located on the upper shell, and the second air inlet pipe is located on the lower shell.

[0015] As a further improvement of the present invention, the upper shell is provided with an upper cover plate, a first thermal insulation plate located below the upper cover plate, and a first air inlet cavity located between the upper cover plate and the first thermal insulation plate; the lower shell is provided with a lower cover plate, a second thermal insulation plate located above the lower cover plate, and a second air inlet cavity located between the lower cover plate and the second thermal insulation plate;

[0016] The area between the first insulation board and the second insulation board forms the heating chamber, the first air inlet pipe extends into the first air inlet chamber, the second air inlet pipe extends into the second air inlet chamber, and air holes are provided on the first insulation board and the second insulation board.

[0017] As a further improvement of the present invention, the heating element is connected to the first insulation board, and the heating element adopts an infrared lamp.

[0018] As a further improvement of the present invention, the heating chamber has an opening on one side along the second direction and through-holes on both sides along the wire drawing movement direction, the temperature measuring end of the temperature sensor is flush with the through-holes, and the furnace body further includes a first sealing member for sealing the opening and a second sealing member for sealing the through-holes;

[0019] The first sealing member includes a first sealing plate and a pressure member applying pressure to the first sealing plate;

[0020] The second sealing member includes a limiting plate fixed on the upper shell, a second sealing plate movably connected to the lower shell along the height direction, and a driving member for driving the second sealing plate to move.

[0021] Beneficial effects of the present invention: The present invention divides the heating chamber into zones and configures the air intake pipe and the temperature sensor for each temperature zone. The temperature of the corresponding temperature zone is measured by the temperature sensor, and the air intake volume of the air intake pipe is fine-tuned to adjust the temperature of the corresponding temperature zone, thereby reducing the temperature difference between the temperature zones and ensuring temperature balance in the heating chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. 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:

[0023] Figure 1 This is a schematic diagram of the overall structure of the heating device of the utility model;

[0024] Figure 2 This is a front view of the heating device of the present invention;

[0025] Figure 3 This is a top view of the heating chamber of the utility model;

[0026] Figure 4 This is a schematic diagram of the partitions of the heating device of the utility model;

[0027] Figure 5 This is a bottom view of the heating device of the present invention;

[0028] Figure 6 This is a side view of the heating device of the present invention;

[0029] Figure 7 This is a cross-sectional view of the heating device of the present invention;

[0030] Figure 8 This is an exploded schematic diagram of the heating device of the present invention;

[0031] Figure 9 for Figure 8 A is an enlarged schematic diagram;

[0032] Figure 10 for Figure 8 A magnified schematic diagram of middle B;

[0033] Figure 11 This is a schematic diagram of the furnace body of the utility model in the waiting position;

[0034] Figure 12This is a schematic diagram of the upper cover plate - the first insulation plate of the utility model;

[0035] Figure 13 This is a schematic diagram of the lower cover plate - the second insulation plate of the utility model.

[0036] Figure 14 This is a schematic diagram of the second air intake pipe of the present invention. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0038] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0041] like Figures 1 to 14 As shown, the heating device for wire drawing provided by the present invention includes a furnace body 100, an air outlet pipe 200, an air inlet pipe, a temperature sensor 500 and a heating element 600.

[0042] The air inlet pipe is used to introduce air into the furnace body 100. The air outlet pipe 200 is used to exhaust the air within the furnace body 100. The air intake and exhaust form a dynamic balance, and the gas flows rapidly within the furnace body 100, thereby forming a dynamic thermal equilibrium within the furnace body 100 and ensuring a uniform temperature within the furnace body 100. The temperature sensor 500 is used to detect the temperature within the furnace body 100. The heating element 600 is used to generate heat, thereby heating the diamond wire within the furnace body 100 for subsequent wire drawing operations.

[0043] The furnace body 100 is provided with a heating chamber 101 having several temperature zones arranged along the wire drawing direction. The outlet pipe 200 and the inlet pipe are both connected to the heating chamber 101, thereby enabling air intake and exhaust from the heating chamber 101. The heating element 600 is located within the heating chamber 101 to generate heat to heat the heating chamber 101.

[0044] Each temperature zone is equipped with at least one air intake pipe and a temperature sensor 500. The temperature sensor 500 is used to detect the temperature of the corresponding temperature zone. The air intake volume of the air intake pipe is controlled according to the temperature of the temperature zone to adjust the temperature within the corresponding temperature zone, thereby ensuring temperature balance within each temperature zone and improving wire drawing quality.

[0045] Specifically, the furnace body 100 includes an upper shell 102 and a lower shell 103 , and the upper shell 102 and the lower shell 103 enclose the heating chamber 101 .

[0046] The upper housing 102 is provided with an upper cover plate 102a, a first heat-insulating plate 102b located below the upper cover plate 102a, and a first air inlet cavity 102c located between the upper cover plate 102a and the first heat-insulating cup 102b. The lower housing 103 is provided with a lower cover plate 103a, a second heat-insulating plate 103b located above the lower cover plate 103a, and a second air inlet cavity 103c located between the lower cover plate 103a and the second heat-insulating plate 103b.

[0047] The area between the first insulation board 102b and the second insulation board 103b forms the heating chamber 101. The first insulation board 102b and the second insulation board 103b are made of high-density ceramic fiberboard for heat insulation, thereby preventing the heat generated by the heating element 600 from being lost.

[0048] The first and second insulation plates 102b, 103b are provided with ventilation holes. Compressed air enters the first and second air inlet chambers 102c, 103c, through the air inlet pipes, and then evenly enters the heating chamber 101 through the ventilation holes. The first and second air inlet chambers 102c, 103c buffer and evenly distribute the compressed air entering through the air inlet pipes, thereby minimizing disturbances to the temperature and airflow in the heating chamber 101.

[0049] In a specific embodiment, a first recessed portion is provided on a side of the upper cover plate 102a facing the first heat-insulating plate 102b, and after the upper cover plate 102a and the first heat-insulating plate 102b are connected, the first recessed portion forms the first air inlet cavity 102c.

[0050] A second recessed portion is provided on a side of the lower cover plate 103a facing the second heat-insulating plate 103b. After the lower cover plate 103a and the second heat-insulating plate 103b are connected, the second recessed portion forms the second air inlet cavity 103c.

[0051] The air outlet pipe 200 is fixed to the upper housing 102 and communicates with the heating chamber 101. The upper cover 102a and the first insulation plate 102b are provided with corresponding air outlet holes. The air outlet pipe 200 communicates with the air outlet holes, allowing air in the heating chamber 101 to be discharged from the air outlet pipe 200 through the air outlet holes. The first recessed portion and the air outlet holes are spaced apart to prevent the intake and exhaust air from interfering with each other and causing turbulence.

[0052] The furnace body 100 includes a wire inlet for drawing wires and a wire outlet for drawing wires out. Preferably, the outlet pipe 200 is located closer to the wire inlet than to the wire outlet. This ensures that the direction of wire drawing is opposite to the direction of most gas flow within the heating chamber 101, resulting in better heating of the diamond wire.

[0053] The lower housing 103 is further provided with an air duct 103d facing the wire inlet and the wire outlet, and the air duct 103d is used to reduce the heat overflow from the wire inlet and the wire outlet. The air duct 103d is connected to the second heat preservation board 103b.

[0054] The heating element 600 is located on one side of the heating chamber 101 along the height direction. The air inlet pipe includes a first air inlet pipe 300. The first air inlet pipe 300 is connected to the side of the heating chamber 101 where the heating element 600 is located. The first air inlet pipe 300 is provided with an air volume adjustment member to adjust the air volume of the first air inlet pipe 300.

[0055] The air intake pipe also includes a second air intake pipe 400. The first air intake pipe 300 and the second air intake pipe 400 are respectively connected to the top and bottom of the furnace body 100, that is, the first air intake pipe 300 and the second air intake pipe 400 are respectively connected to the upper shell 102 and the lower shell 103. The second air intake pipe 400 can also be provided with an air volume adjustment member to adjust the air intake volume.

[0056] In this embodiment, the heating element 600 is connected to the first insulation plate 102b to provide heat to the heating chamber 101. Preferably, the heating element 600 utilizes an infrared lamp. While generating heat, the infrared lamp also radiates infrared radiation to the surrounding air, providing rapid heating and cooling responses. The infrared lamp is also filled with an inert gas, extending its service life.

[0057] The first air inlet pipe 300 is fixed to the upper housing 102 and communicates with the heating chamber 101. The first air inlet pipe 300 extends into the first air inlet chamber 102c. Compressed air enters the first air inlet chamber 102c through the first air inlet pipe 300 and then evenly enters the heating chamber 101 through the air holes on the first insulation board 102b.

[0058] The first recessed portion and the first air inlet pipe 300 are arranged in a one-to-one correspondence, that is, one first air inlet pipe 300 corresponds to one first air inlet cavity 102c, so that different amounts of air can be introduced into different areas in the heating cavity 101 by adjusting the air intake of the first air inlet pipe 300.

[0059] The second air inlet pipe 400 is fixed to the lower housing 103 and communicates with the heating chamber 101. The second air inlet pipe 400 extends into the second air inlet chamber 103c. Compressed air enters the second air inlet chamber 103c through the second air inlet pipe 400 and then evenly enters the heating chamber 101 through the air holes on the second insulation board 103b.

[0060] The second recessed portion and the second air inlet pipe 400 are arranged in a one-to-one correspondence, that is, one second air inlet pipe 400 corresponds to one second air inlet cavity 103c, so that different amounts of air can be introduced into different areas in the heating cavity 101 by adjusting the air intake volume of the second air inlet pipe 400.

[0061] It should be noted that, because the first air inlet pipe 300 and the heating element 600 are both located on the upper housing 102, the air flowing in through the first air inlet pipe 300 enters the first air inlet cavity 102c, and then evenly enters the heating cavity 101 through the air holes in the first thermal insulation board 102b. During this process, the air will pass through the heating element 600, thereby bringing the heat generated by the heating element 600 into the heating cavity 101. The second air inlet pipe 400 is located on the lower housing 103. The air flowing in through the second air inlet pipe 400 enters the second air inlet cavity 103c, and then directly enters the heating cavity 101 through the air holes in the second thermal insulation board 103b without passing through the heating element 600.

[0062] In view of this, the number of the first air inlet pipes 300 is greater than or equal to the number of the second air inlet pipes 400. Temperature control in different temperature zones is primarily achieved by adjusting the air intake volume of the first air inlet pipes 300. The second air inlet pipes 400 are primarily used to drive the air flow at the bottom of the heating chamber 101, thereby working together with the first air inlet pipes 300 to achieve dynamic thermal balance within the entire heating chamber 101.

[0063] Each temperature zone is connected to one second air inlet pipe 400 and multiple first air inlet pipes 300. The multiple first air inlet pipes 300 connected to the same temperature zone are spaced apart along a second direction. The second direction is perpendicular to the wire drawing direction. The multiple first air inlet pipes 300 spaced apart along the second direction divide the temperature zone into multiple smaller temperature zones. The temperature of each smaller temperature zone is adjusted by adjusting the air intake volume of the first air inlet pipes 300.

[0064] The temperature sensor 500 is fixed to the upper housing 102, with its temperature measuring end located within the heating chamber 101, thereby detecting the temperature within the heating chamber 101. Each temperature sensor 500 is provided in a one-to-one correspondence with each first air intake pipe 300, i.e., one temperature sensor 500 is associated with each first air intake pipe 300. The temperature sensor 500 is disposed within a predetermined area surrounding the first air intake pipe 300, thereby detecting the temperature within the corresponding small temperature zone and thereby adjusting the air intake volume of the first air intake pipe 300 connected to the small temperature zone.

[0065] The temperature sensor 500 and the first air intake pipe 300 within the same temperature zone are spaced apart. Air entering through the first air intake pipe 300 flows a distance through the first air intake chamber 102c and the heating chamber 101 before reaching the temperature sensor 500. This ensures sufficient heating and prevents degradation of the temperature sensor 500's detection accuracy. Preferably, the distance between the temperature sensor 500 and the first air intake pipe 300 within the same temperature zone is 1 / 3 to 1 / 2 the length of the temperature zone.

[0066] The temperature sensor 500 in any temperature zone is located between the first air inlet pipe 300 and the air outlet pipe 200 in the temperature zone, so as to detect the temperature of the gas flowing from the first air inlet pipe 300 to the air outlet pipe 200, thereby measuring the temperature in the corresponding temperature zone.

[0067] Reference Figures 3 to 5 In a specific embodiment, there are three temperature zones in the heating chamber 101 along the wire drawing moving direction, which are the first temperature zone, the second temperature zone, and the third temperature zone from the wire inlet to the wire outlet.

[0068] The air outlet pipe 200 is located between the first temperature zone and the second temperature zone.

[0069] Any of the temperature zones is connected to the three first air intake pipes 300 spaced apart along the second direction, that is, the number of the first air intake pipes 300 is 9 in 3 rows and 3 columns. The first temperature zone is divided into 3 small temperature zones by the three first air intake pipes 300, namely the #1 to #3 small temperature zones. The second temperature zone is divided into 3 small temperature zones by the three first air intake pipes 300, namely the #4 to #6 small temperature zones. The third temperature zone is divided into 3 small temperature zones by the three first air intake pipes 300, namely the #7 to #9 small temperature zones. Correspondingly, the first air intake chamber 102c is provided with 9 independent ones. At the same time, 9 temperature sensors 500 are provided, which are respectively used to detect the temperatures in the #1 to #9 small temperature zones.

[0070] Among them, the #5 small temperature zone is a temperature control zone, and the temperature of this zone is kept the same as the set temperature of the heating chamber 101. If the temperature of this zone is too low, the output power of the heating element 600 is increased to heat up the heating chamber 101; if the temperature of this zone is too high, the output power of the heating element 600 is reduced to cool down the heating chamber 101. The remaining temperature zones are monitoring zones, and should be kept consistent with the temperature of the #5 small temperature zone as much as possible. When the temperature in a certain area is too high, the air intake of the first air intake pipe 300 corresponding to the area is increased to lower the temperature of the area; when the temperature in a certain area is too low, the air intake of the first air intake pipe 300 corresponding to the area is reduced to increase the temperature of the area. This prevents the temperature difference in the heating chamber 101 from being too large and affecting the wire drawing quality.

[0071] Each temperature zone has a second air inlet pipe 400, meaning three second air inlet pipes 400 are spaced apart along the wire drawing direction. Correspondingly, three independent second air inlet chambers 103c are provided. The second air inlet pipe 400 is used to coordinate with the first air inlet pipe 300 to fine-tune the temperature of different zones within the heating chamber 101. It also cooperates with the air outlet pipe 200 to achieve dynamic thermal equilibrium within the heating chamber 101, ensuring a uniform temperature within the chamber.

[0072] Reference Figure 14 The second air inlet pipe 400 includes an air inlet section 401, a diverter section 402 communicating with the air inlet section 401, and multiple air outlets 403 provided on the diverter section 402. The diverter section 402 is located within the second air inlet cavity 103c. The diverter section 402 is H-shaped, allowing air entering from the air inlet section 401 to flow evenly throughout the second air inlet cavity 103c and then enter the heating cavity 101 through the air vents in the second insulation board 103b.

[0073] In some embodiments, the heating chamber 101 has an opening on one side along the second direction for the diamond wire to enter the heating chamber 101. Specifically, the front side of the furnace body 100 has a gap to form the opening, that is, there is a gap between the upper shell 102 and the lower shell 103, so that the diamond wire to be processed can enter the heating chamber 101 through the opening. The rear side of the furnace body 100 is closed.

[0074] The furnace body 100 also includes a first sealing member 104 for sealing the opening. The first sealing member 104 comprises a first sealing plate 104a and a pressure member 104b that applies pressure to the first sealing plate 104a. The first sealing plate 104a is removable and is used to seal the opening of the heating chamber 101. The pressure member 104b is used to maintain the sealing state of the first sealing plate 104a relative to the opening. The first insulation plate 102b and the second insulation plate 103b have abutting surfaces that abut against the first sealing plate 104a.

[0075] The pressure member 104b includes a fixing base 104b-1 fixed to the upper housing 102, an operating portion 104b-2 hingedly connected to the fixing base 104b-1, and a pressure portion 104b-3 hingedly connected to both the fixing base 104b-1 and the operating portion 104b-2. The pressure portion 104b-3 has a first state in which it abuts against the first sealing plate 104a and a second state in which it is separated from the first sealing plate 104a.

[0076] After the diamond wire enters the heating chamber 101, the first sealing plate 104a is first placed at the opening of the heating chamber 101, and the first sealing plate 104a is brought into contact with the contact surfaces of the first heat-insulating plate 102b and the second heat-insulating plate 103b. The operating portion 104b-2 is then rotated toward the upper housing 102 to drive the pressure-applying portion 104b-3 toward the first sealing plate 104a, until the pressure-applying portion 104b-3 contacts the first sealing plate 104a, thereby compressing the first sealing plate 104a. The operating portion 104b-2 maintains the contact between the pressure-applying portion 104b-3 and the first sealing plate 104a, thereby sealing the opening.

[0077] When the diamond wire drawing is completed, the operating part 104b-2 is first rotated away from the upper shell 102 to drive the pressure part 104b-3 to separate from the first sealing plate 104a, and then the first sealing plate 104a is removed to expose the opening, and the diamond wire can exit the heating chamber 101 from the opening.

[0078] The heating chamber 101 has openings at both ends along the wire drawing direction, extending inward from the opening of the heating chamber 101. Specifically, a notch is provided at the top of the lower housing 103 to form the openings. The temperature sensor 500's temperature measuring end is flush with the openings, thereby measuring the temperature at the location of the diamond wire.

[0079] The furnace body 100 further includes a second sealing member 105 for sealing the through-hole. The second sealing member 105 includes a limit plate 105a fixed to the upper shell 102, a second sealing plate 105b movably connected to the lower shell 103 along the height direction, and a driving member 105c for driving the second sealing plate 105b to move.

[0080] A downward-opening limiting groove is defined between the limiting plate 105a and the upper housing 102. The second sealing plate 105b includes a guide groove 105b-1 extending in the height direction and a notch 105b-2 located at the top of the second sealing plate 105b. The lower housing 103 is provided with a guide bolt positioned within the guide groove 105b-1. The driving member 105c includes a first connecting rod 105c-1 hingedly connected to the limiting plate 105a and a second connecting rod 105c-2 hingedly connected to the first connecting rod 105c-1. The second connecting rod 105c-2 is pivotally connected to the lower housing 103 at one end away from the first connecting rod 105c-1.

[0081] The diamond wire enters the heating chamber 101 from the opening along the through-hole, first sealing the opening with the first sealing plate 104a. The second connecting rod 105c-2 is then rotated to move the first connecting rod 105c-1 upward, thereby moving the second sealing plate 105b upward. The guide groove 105b-1 and the guide bolts cause the second sealing plate 105b to move vertically. When the second sealing plate 105b enters the limiting groove, the end of the diamond wire is positioned within the notch 105b-2. The through-hole is thus sealed by the second sealing plate 105b. The notch 105b-2 forms the wire inlet and outlet.

[0082] When the diamond wire drawing is completed, the second connecting rod 105c-2 is rotated to move the first connecting rod 105c-1 downward, thereby moving the second sealing plate 105b downward to open the outlet. The first sealing plate 104a is then removed, allowing the diamond wire to exit the heating chamber 101 through the opening along the outlet.

[0083] In the prior art, the heating chamber 101 needs to be opened for wire threading during the wire drawing process, which often lasts for more than half an hour. During the wire threading process, the heat overflows from the heating chamber 101, causing the operator to be exposed to a high temperature environment for a long time. After the wire threading is completed, the temperature needs to be quickly raised to continue the wire drawing process, resulting in energy waste.

[0084] In the present application, by setting the opening and the through-port, the diamond wire can enter and exit the heating chamber 101 by moving the heating device. Specifically, there are a wire threading station and a waiting station spaced apart along the second direction, and the heating device can be moved along the second direction. When wire threading is required, the heating device is located at the waiting station and is in a heat-insulating state, and the opening and the through-port are both in a sealed state. The operator performs the wire threading operation at the wire threading station and will not be subjected to the heat radiation of the heating device. After the wire threading is completed, the opening and the through-port are opened, and the heating device is moved toward the wire threading station so that the diamond wire enters the heating chamber 101, and then the opening and the through-port are sealed to heat the diamond wire for wire drawing. This minimizes heat loss.

[0085] The present invention divides the heating chamber 101 into zones and configures the air intake pipe and the temperature sensor 500 for any temperature zone. The temperature of the corresponding temperature zone is measured by the temperature sensor 500, and the air intake volume of the air intake pipe is fine-tuned to adjust the temperature of the corresponding temperature zone, thereby reducing the temperature difference between the temperature zones and ensuring temperature balance in the heating chamber 101.

[0086] Gas is injected into the furnace body 100 through the first air inlet pipe 300 and the second air inlet pipe 400, and the air in the furnace body 100 is discharged through the air outlet pipe 200. The intake and exhaust form a dynamic balance, and the gas flows rapidly in the furnace body 100, thereby forming a dynamic thermal balance in the furnace body 100, ensuring that the temperature in the furnace body 100 is uniform.

[0087] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0088] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent embodiments or changes that do not depart from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heating device for wire drawing, characterized in that: include: A furnace body (100) is provided with a heating chamber (101) therein, wherein the heating chamber (101) has a plurality of temperature zones arranged along the wire drawing moving direction; a heating element (600) located in the heating chamber (101); an air outlet pipe (200) in communication with the heating chamber (101); a plurality of air inlet pipes in communication with the heating chamber (101), wherein any of the temperature zones is in communication with at least one of the air inlet pipes; A temperature sensor (500) is used to detect the temperature in the heating chamber (101), and at least one temperature sensor (500) is provided in any temperature zone.

2. The wire drawing heating device according to claim 1, characterized in that: The heating element (600) is located on one side of the heating chamber (101) in the height direction, and the air inlet pipe comprises a first air inlet pipe (300), the first air inlet pipe (300) being in communication with a side of the heating chamber (101) where the heating element (600) is provided, and an air volume regulating element is provided on the first air inlet pipe (300).

3. The heating device for wire drawing according to claim 2, characterized in that: The air inlet pipe further includes a second air inlet pipe (400), the first air inlet pipe (300) and the second air inlet pipe (400) are respectively connected to the top and the bottom of the furnace body (100), and the number of the first air inlet pipes (300) is greater than or equal to the number of the second air inlet pipes (400).

4. The heating device for wire drawing according to claim 3, characterized in that: Any of the temperature zones is connected to one of the second air inlet pipes (400) and a plurality of the first air inlet pipes (300), and the plurality of the first air inlet pipes (300) connected to the same temperature zone are spaced apart along a second direction, and the second direction is perpendicular to the wire drawing movement direction.

5. The heating device for wire drawing according to claim 2, characterized in that: The temperature sensor (500) is arranged in a one-to-one correspondence with the first air intake pipe (300), and the temperature sensor (500) is arranged in a preset area around the first air intake pipe (300).

6. The heating device for wire drawing according to claim 5, characterized in that: The temperature sensor (500) in any temperature zone is located between the first air inlet pipe (300) and the air outlet pipe (200) that are in communication with the temperature zone.

7. The heating device for wire drawing according to claim 1, characterized in that: The furnace body (100) comprises a wire inlet for wire drawing to enter and a wire outlet for wire drawing to be drawn out, and the distance between the air outlet pipe (200) and the wire inlet is smaller than the distance between the air outlet pipe (200) and the wire outlet.

8. The heating device for wire drawing according to claim 3, characterized in that: The second air inlet pipe (400) comprises an air inlet section (401), a diversion section (402) in communication with the air inlet section (401), and a plurality of air outlets (403) provided on the diversion section (402); the diversion section (402) is H-shaped.

9. The heating device for wire drawing according to claim 3, characterized in that: The furnace body (100) comprises an upper shell (102) and a lower shell (103), and the upper shell (102) and the lower shell (103) enclose the heating chamber (101); The air outlet pipe (200), the first air inlet pipe (300) and the heating element (600) are located on the upper shell (102), and the second air inlet pipe (400) is located on the lower shell (103).

10. The heating device for wire drawing according to claim 9, characterized in that: The upper shell (102) is provided with an upper cover plate (102a), a first heat-insulating plate (102b) located below the upper cover plate (102a), and a first air inlet cavity (102c) located between the upper cover plate (102a) and the first heat-insulating plate (102b); The lower shell (103) is provided with a lower cover plate (103a), a second heat-insulating plate (103b) located above the lower cover plate (103a), and a second air inlet cavity (103c) located between the lower cover plate (103a) and the second heat-insulating plate (103b); The area between the first heat-insulating plate (102b) and the second heat-insulating plate (103b) forms the heating chamber (101); the first air inlet pipe (300) extends into the first air inlet chamber (102c); the second air inlet pipe (400) extends into the second air inlet chamber (103c); and air holes are provided on the first heat-insulating plate (102b) and the second heat-insulating plate (103b).

11. The wire drawing heating device according to claim 10, characterized in that: The heating element (600) is connected to the first heat-insulating plate (102b), and the heating element (600) is an infrared lamp.

12. The wire drawing heating device according to claim 9, characterized in that: The heating chamber (101) has an opening on one side along the second direction and through-holes on both sides along the wire drawing moving direction; the temperature measuring end of the temperature sensor (500) is flush with the through-holes; and the furnace body (100) further comprises a first sealing member (104) for sealing the opening and a second sealing member (105) for sealing the through-holes; The first sealing member (104) includes a first sealing plate (104a) and a pressure member (104b) that applies pressure to the first sealing plate (104a); The second sealing member (105) comprises a limiting plate (105a) fixed on the upper shell (102), a second sealing plate (105b) movably connected to the lower shell (103) along the height direction, and a driving member (105c) for driving the second sealing plate (105b) to move.

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