High-frequency heat treatment device suitable for sorbite rubber tube steel wire

Abstract

The high-frequency heat treatment device comprises a base, a heating box is arranged in the middle of the upper side of the base, and the interior of the heating box is divided into a first heating bin, a second heating bin, a third heating bin, a fourth heating bin and a fifth heating bin through partition plates; and induction coils are arranged in the first heating bin, the second heating bin, the third heating bin, the fourth heating bin and the fifth heating bin. The invention relates to the technical field of sorbite rubber tube steel wires, and has the beneficial effects that the first to fifth heating bins are arranged in the heating box to form a multi-stage heating structure; the heating bin is arranged in each heating bin, and is matched with an independent induction coil in each heating bin, so that partitioned and segmented heating of the sorbite rubber tube steel wire is realized, the heating temperature and time of each stage can be accurately controlled according to the material characteristics and processing requirements of the steel wire, the plasticity and toughness of the steel wire can be greatly improved, the strength and hardness of the steel wire can be reduced, and preparation is made for subsequent wet drawing.

Description

Technical Field

[0001] The invention relates to the technical field of sorbite hose steel wires, in particular to a high-frequency heat treatment device suitable for sorbite hose steel wires. Background Art

[0002] Hose steel wire is a steel wire used to serve as the skeleton and enhance pressure of hoses, making the hose flexible, wear-resistant, pressure-resistant and tough. It is widely used in various fields. With the development of hose conveying materials, users' requirements for ultra-high-strength hose steel wire are constantly increasing. At present, the hose steel wire industry is trying to use 82 and 86 grade wire rod C82DA to process ultra-high-strength hose steel wire.

[0003] In the process of processing hose steel wire, it is necessary to perform a rough wire drawing operation on the thick wire rod. During the rough wire drawing process, the thick wire rod needs to be subjected to a high-frequency heating operation. However, in some existing equipment, the high-frequency heating of the steel wire only adopts a single-zone heating method to achieve the purpose of high-frequency heating. This method cannot accurately control the heating temperature and time of each stage, which may cause the steel wire to crack or deform due to the large temperature difference between the inside and outside. At the same time, the heating induction coil is usually directly exposed to the air, which is easy to cause heat waste during operation. At the same time, due to the high temperature of high-frequency heating and the large temperature difference between the inside of the steel wire and the heating temperature, the steel wire is prone to cracking and deformation.

[0004] Based on the above problems, there may already be technical means in the current technology to solve the above technical solutions. This case intends to provide an alternative or replacement technical means. Summary of the Invention

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-frequency heat treatment device suitable for sorbite hose steel wire, comprising a base, a heating box is provided in the middle portion of the upper side of the base, the interior of the heating box is separated into a first heating chamber, a second heating chamber, a third heating chamber, a fourth heating chamber and a fifth heating chamber by partitions, the first heating chamber, the second heating chamber, the third heating chamber, the fourth heating chamber and the fifth heating chamber are all provided with induction coils, a distribution box electrically connected to the induction coils is provided at the rear side of the heating box, and a pretreatment box is provided on one side of the heating box;

[0006] An assembly cover is provided on the upper side of the heating box, and openings corresponding to the first heating chamber, the second heating chamber, the third heating chamber, the fourth heating chamber and the fifth heating chamber are respectively opened on the upper side of the assembly cover, a sealing cover is provided on the upper side of the assembly cover, and strip plates are provided on the front and rear sides of the assembly cover, and limiting openings are provided on both sides of the strip plates. The lower side of the sealing plate is plugged into the upper side of the assembly cover, and a clamping assembly corresponding to the limiting opening is provided on the lower side of the sealing cover. A transfer box is provided on the upper side of the sealing cover, and the lower side of the sealing cover is provided with a first inlet rack and a first return rack corresponding to the openings;

[0007] The lower side of the first inlet rack is connected to multiple groups of first inlet pipes, and the lower side of the first return rack is connected to multiple groups of first return pipes. The lower sides of the first inlet pipes and the first return pipes are both connected to U-shaped pipes, and the lower side of the U-shaped pipes is close to the induction coil. A cleaning component is provided on one side of the pretreatment box. The second inlet rack and the second return rack are respectively provided on both sides of the upper side of the pretreatment box. Multiple groups of U-shaped heating pipes are evenly arranged inside the pretreatment box. The upper sides of the U-shaped heating pipes pass through the pretreatment box and are respectively connected to the second inlet rack and the second return rack;

[0008] A second return pipe and a port are respectively provided inside the transfer box, and an inlet pump and a return pump are respectively provided on one side of the transfer box. The inlet pump is connected to the port, and the return pump is connected to the second return pipe. The lower side of the second return pipe is connected to the first return rack. One side of the port is connected to multiple groups of second inlet pipes, one end of the second inlet pipe is connected to the first inlet rack, and the inlet pump and the return pump are respectively connected to the second inlet rack and the second return rack through a delivery pipe.

[0009] In the above solution: the cleaning assembly includes a fan arranged on the upper side of the pretreatment box, one side of the pretreatment box is rotatably connected to a gear ring, the lower side of the pretreatment box is provided with a driving member, and the driving end of the driving member is provided with a driving gear;

[0010] The air outlet of the blower is connected with a three-way pipe, one side of the three-way pipe is connected with an exhaust rack, a plurality of groups of blowing heads are arranged on the inside of the exhaust rack, and bristles are evenly arranged on the inside of the gear ring.

[0011] In the above solution, the clamping assembly includes a plug-in block, the plug-in block is hollow inside, a screw is rotatably connected to the lower wall of the plug-in block, the upper side of the screw passes through the wall of the sealing cover and extends from the upper side of the sealing cover, and the lower side of the screw is threadedly connected to the lifting block;

[0012] Moving blocks are plugged into both sides of the plug-in block, a connecting piece is provided on one side of the moving block, one side of the connecting piece is connected to the inner wall of the plug-in block through a spring rod, a spherical block is provided on the other side of the connecting piece, and notches corresponding to the moving blocks are opened on the inner walls on both sides of the limit opening.

[0013] In the above scheme: the pretreatment box, the first heating chamber, the second heating chamber, the third heating chamber, the fourth heating chamber and the fifth heating chamber are all provided with corresponding circular through holes on both sides, and the circular through holes are located on the same axis as the center of the induction coil and the center of the gear ring.

[0014] In the above scheme: the first heating chamber, the second heating chamber, the third heating chamber, the fourth heating chamber and the fifth heating chamber are all provided with heating chambers on the lower side, the upper inner wall of the heating chamber is evenly plugged with heat conducting plates, and the lower sides of the heating chambers are connected to each other through connecting ports.

[0015] In the above solution, the upper side of the lifting block is spherical, and arc-shaped grooves corresponding to the spherical block are provided on both sides of the lifting block.

[0016] In the above solution: a heat-insulating layer is laid inside the transfer box.

[0017] In the above solution: the upper side of the heat conducting plate is configured to be bent.

[0018] In the above solution: the four corners on the upper side of the sealing cover are all provided with hanging rings.

[0019] In the above solution: a knob is provided on the upper side of the screw.

[0020] Beneficial effects

[0021] The present invention provides a high-frequency heat treatment device suitable for sorbite hose steel wire, which has the following features:

[0022] Beneficial effects:

[0023] 1. By setting the first to fifth heating chambers in the heating box to form a multi-stage heating structure, and cooperating with the independent induction coil in each heating chamber, the sorbite hose steel wire can be heated in sections and segments. The heating temperature and time of each stage can be accurately controlled according to the material characteristics and processing requirements of the steel wire, which can greatly improve the plasticity and toughness of the steel wire and reduce the strength and hardness, thus preparing for subsequent wet drawing.

[0024] 2. By arranging the first inlet rack and the first return rack corresponding to the openings of each heating chamber on the lower side of the sealing cover, and cooperating with the U-shaped tube design, the heat dissipated during the operation of the induction coil can be efficiently recovered, and the heat exchange medium that absorbs the heat can be sent into the U-shaped heating tube. The steel wire before heating can also be preheated, reducing energy loss and increasing the effect of subsequent high-frequency heating.

[0025] 3. The pretreatment box not only serves as a preheating area for the steel wire before it enters the heating chamber, but also integrates a cleaning component. Using a combination of a fan and bristles, it effectively removes impurities and oxides on the surface of the steel wire, ensuring the cleanliness of the steel wire surface, providing a good foundation for the subsequent heat treatment process, and improving the surface quality and mechanical properties of the final product.

[0026] 4. The heat conducting sheets are evenly inserted on the inner wall of the upper side of the heating chamber, and the upper side of the heat conducting sheets is bent, which increases the heat conduction area and improves the heat conduction efficiency, so that the remaining overflow heat of the induction coil can be efficiently collected and the heat recovery effect can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention.

[0028] Figure 2 It is a rear-view three-dimensional structural schematic diagram of the present invention.

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the heating box of the present invention.

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the heating box of the present invention.

[0031] Figure 5 It is a schematic diagram of the main cross-sectional structure of the heating box of the present invention.

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the sealing cover of the present invention.

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of the assembly cover of the present invention when viewed from above.

[0034] Figure 8 It is a schematic diagram of a partially enlarged structure of the present invention.

[0035] Figure 9 This is a schematic diagram of the three-dimensional structure of the pretreatment box of the present invention from a front view.

[0036] Figure 10 This is a schematic diagram of the three-dimensional structure of the pretreatment box of the present invention.

[0037] Figure 11It is a schematic cross-sectional structural diagram of the clamping assembly of the present invention.

[0038] Figure 12 Schematic diagram of the three-dimensional structure of the induction coil of the present invention.

[0039] Figure 13 It is a schematic diagram of the three-dimensional structure of the U-shaped tube of the present invention.

[0040] Figure 14 It is a structural schematic diagram of the arrangement state of the U-shaped tubes of the present invention.

[0041] Figure 15 It is a schematic diagram of the three-dimensional structure of the U-shaped tube in the assembled state of the present invention.

[0042] In the figure: 1, base, 2, heating box, 3, partition, 4, first heating chamber, 5, second heating chamber, 6, third heating chamber, 7, fourth heating chamber, 8, fifth heating chamber, 9, induction coil, 10, distribution box, 11, pretreatment box, 12, assembly cover, 13, sealing cover, 14, strip plate, 15, transfer box, 16, first inlet rack, 17, first return rack, 18, first inlet pipe, 19, first return pipe, 20, U-shaped pipe, 21, second inlet rack, 22, second return rack, 23, U-shaped heating pipe, 24. Second return pipe, 25. Port, 26. Inlet pump, 27. Return pump, 28. Second inlet pipe, 29. Delivery pipe, 30. Fan, 31. Ring gear, 32. Driving member, 33. Driving gear, 34. Tee pipe, 35. Exhaust rack, 36. Blowing head, 37. Brush, 38. Connecting block, 39. Screw, 40. Lifting block, 41. Moving block, 42. Connecting piece, 43. Spherical block, 44. Circular through hole, 45. Heating chamber, 46. Heat conducting sheet, 47. Insulation layer, 48. Lifting ring, 49. Knob. DETAILED DESCRIPTION

[0043] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0044] Example

[0045] See also Figure 1-15 A high-frequency heat treatment device suitable for sorbite hose steel wire includes a base 1, a heating box 2 is provided in the middle part of the upper side of the base 1, the interior of the heating box 2 is separated into a first heating chamber 4, a second heating chamber 5, a third heating chamber 6, a fourth heating chamber 7 and a fifth heating chamber 8 by a partition 3, the first heating chamber 4, the second heating chamber 5, the third heating chamber 6, the fourth heating chamber 7 and the fifth heating chamber 8 are each provided with an induction coil 9, a distribution box 10 electrically connected to the induction coil 9 is provided at the rear side of the heating box 2, and a pretreatment box 11 is provided on one side of the heating box 2;

[0046] An assembly cover 12 is provided on the upper side of the heating box 2. Openings corresponding to the first heating chamber 4, the second heating chamber 5, the third heating chamber 6, the fourth heating chamber 7 and the fifth heating chamber 8 are respectively opened on the upper side of the assembly cover 12. A sealing cover 13 is provided on the upper side of the assembly cover 12. Strip plates 14 are provided on the front and rear sides of the assembly cover 12. Limit openings are provided on both sides of the strip plates 14. The lower side of the sealing plate is plugged into the upper side of the assembly cover 12. A snap-on assembly corresponding to the limit opening is provided on the lower side of the sealing cover 13. A transfer box 15 is provided on the upper side of the sealing cover 13. A first inlet rack 16 and a first return rack 17 corresponding to the openings are provided on the lower side of the sealing cover 13.

[0047] The lower side of the first inlet frame 16 is connected to multiple groups of first inlet pipes 18, and the lower side of the first return frame 17 is connected to multiple groups of first return pipes 19. The lower sides of the first inlet pipes 18 and the first return pipes 19 are connected to U-shaped pipes 20, and the lower side of the U-shaped pipes 20 is close to the induction coil 9. A cleaning component is provided on one side of the pretreatment box 11. The second inlet frame 21 and the second return frame 22 are respectively provided on both sides of the upper side of the pretreatment box 11. Multiple groups of U-shaped heating pipes 23 are evenly arranged inside the pretreatment box 11. The upper sides of the U-shaped heating pipes 23 pass through the pretreatment box 11 and are respectively connected to the second inlet frame 21 and the second return frame 22;

[0048] A second return pipe 24 and a port 25 are provided inside the adapter box 15, and an inlet pump 26 and a return pump 27 are provided on one side of the adapter box 15. The inlet pump 26 is connected to the port 25, and the return pump 27 is connected to the second return pipe 24. The lower side of the second return pipe 24 is connected to the first return rack 17. One side of the port 25 is connected to multiple groups of second inlet pipes 28. One end of the second inlet pipe 28 is connected to the first inlet rack 16. The inlet pump 26 and the return pump 27 are connected to the second inlet rack 21 and the second return rack 22 respectively through the delivery pipe 29;

[0049] The cleaning assembly includes a fan 30 disposed on the upper side of the pre-treatment box 11, a gear ring 31 is rotatably connected to one side of the pre-treatment box 11, a driving member 32 is disposed on the lower side of the pre-treatment box 11, and a driving gear 33 is disposed on the driving end of the driving member 32;

[0050] The air outlet of the fan 30 is connected to a three-way pipe 34, one side of the three-way pipe 34 is connected to an exhaust rack 35, a plurality of blowing heads 36 are arranged inside the exhaust rack 35, and bristles 37 are evenly arranged on the inside of the gear ring 31;

[0051] The clamping assembly includes a plug-in block 38, which is hollow inside. A screw 39 is rotatably connected to the lower wall of the plug-in block 38. The upper side of the screw 39 passes through the wall of the sealing cover 13 and extends from the upper side of the sealing cover 13. The lower side of the screw 39 is threadedly connected to a lifting block 40.

[0052] The plug-in block 38 is plugged with a moving block 41 on both sides. A connecting piece 42 is provided on one side of the moving block 41. One side of the connecting piece 42 is connected to the inner wall of the plug-in block 38 through a spring rod. A spherical block 43 is provided on the other side of the connecting piece 42. Notches corresponding to the moving blocks 41 are opened on the inner walls of both sides of the limit opening.

[0053] It should be noted that in some existing equipment, the high-frequency heating of the steel wire only adopts single-zone heating to achieve the purpose of high-frequency heating. This method cannot accurately control the heating temperature and time of each stage, which may cause the steel wire to crack or deform due to the large temperature difference between the inside and outside. For this reason, the present technical solution respectively opens a first heating chamber 4, a second heating chamber 5, a third heating chamber 6, a fourth heating chamber 7 and a fifth heating chamber 8 inside the heating box 2;

[0054] When in use, first pass one end of the steel wire through the circular through hole 44 through the pretreatment box 11, the first heating chamber 4, the second heating chamber 5, the third heating chamber 6, the fourth heating chamber 7 and the fifth heating chamber 8, and connect them to the traction device. Then, the steel wire is heated by cooperating with the induction coil 9 through the distribution box 10. The heating temperature inside the first heating chamber 4 is 970±10℃, the heating temperature inside the second heating chamber 5 is 985±10℃, the heating temperature inside the third heating chamber 6 is 1020±10℃, the heating temperature inside the fourth heating chamber 7 is 985±10℃, and the heating temperature inside the fifth heating chamber 8 is 975±5℃. The optimal insulation temperature setting needs to be determined by metallographic detection of the grain size. If the grain size is too large, the temperature needs to be lowered. Generally, the DV value is 68-78. Finally, the temperature of the fifth heating chamber 8 is set to 970-980℃.

[0055] The above-mentioned multiple heating chambers form a multi-stage heating structure, and with the independent induction coil 9 in each heating chamber, the zoning and segmented heating of the sorbite hose steel wire can be achieved. The heating temperature and time of each stage can be accurately controlled according to the material properties and processing requirements of the steel wire, which can greatly improve the plasticity and toughness of the steel wire and reduce the strength and hardness, thus preparing for subsequent wet drawing.

[0056] During the heating process of the induction coil 9, a large amount of heat will be dissipated. At this time, the heat-conducting oil inside the U-shaped tube 20 will absorb the heat generated by the operation of the induction coil 9. Then the reflux pump 27 will be operated, and the first reflux pipe 19, the first reflux rack 17, and the second reflux pipe 24 can be used to extract the heat-conducting oil with heat, and send it to the second reflux rack 22 through the delivery pipe 29, and finally enter the U-shaped heating tube 23, so that the steel wire inside the pretreatment box 11 can be preheated, so that the internal temperature of the steel wire is increased, and the temperature difference between the steel wire and the heating temperature after entering the first heating chamber 4 is reduced, so as to prevent the temperature difference from being too high, which may cause the steel wire to crack and deform. At the same time, there are multiple groups of U-shaped heating tubes 23, which can increase the preheating stroke and preheating area of the entire steel wire, and can uniformly preheat the entire steel wire to ensure the uniformity of preheating, which is convenient for subsequent high-frequency heating. The lower side of the U-shaped tube 20 is set to be curved to match the shape of the induction coil 9, which can increase the overall area of the U-shaped tube 20 and increase the heat recovery effect.

[0057] At the same time, the driving member 32 is running, and the gear ring 31 can be driven to rotate by the driving gear 33. The cleaning brush inside the gear ring 31 can be used to clean the surface of the steel wire. Then, in conjunction with the air distributor 30, the tee pipe 34, the exhaust rack 35 and the blowing head 36, the steel wire surface can be cleaned by wind, thereby increasing the cleaning effect of the steel wire surface, ensuring the cleanliness of the steel wire surface, providing a good foundation for the subsequent heat treatment process, and improving the surface quality and mechanical properties of the final product.

[0058] At the same time, heating chambers 45 are provided on the lower sides of the first heating chamber 4, the second heating chamber 5, the third heating chamber 6, the fourth heating chamber 7 and the fifth heating chamber 8. Heat conducting plates 46 are evenly inserted into the inner walls of the upper sides of the heating chambers 45. The lower sides of the heating chambers 45 are interconnected through connecting ports. Since the U-shaped tube 20 cannot completely absorb the heat dissipated by the induction coil 9, heat conducting plates 46 are added for this purpose, and the remaining dissipated heat can be heat-conducted. The upper side of the heat conducting plate 46 is set to be bent, which can increase the overall heat exchange area of the heat conducting plate 46 and increase the heat exchange effect. Since the steel wire needs to be subjected to an AQ water bath operation after high-frequency heating, AQ110 can increase the viscosity of water, increase the vaporization temperature of water, and reduce the thermal conductivity, so that a layer of steam film is formed on the surface of the hot steel wire. The steel wire and water are not in direct contact. The steel wire exchanges heat with water through the steam film in the water to achieve slow cooling of the steel wire. To ensure the stability of the steam film, the surface tension of the steam-water interface must meet a minimum value, which means that the AQ concentration must be maintained at 9±2%. The AQ solution is preheated to 90±5°C, and the heat displaced by the heat conductive sheet 46 can be used to heat the water inside the heating chamber 45, thereby reducing the energy required to subsequently heat the AQ solution to above 90°C and reducing energy loss. In conjunction with the above-mentioned U-shaped tube 20, the heat generated by the induction coil 9 during operation can be efficiently recycled and utilized.

[0059] At the same time, the U-shaped tube 20 and the U-shaped heating tube 23 are both made of ceramic material, which will not affect the normal operation of the induction coil 9;

[0060] After the device operation is completed, the operator can use the knob 49 to rotate the screw 39 and drive the lifting block 40 inside the plug-in block 38 to descend. At this time, the spring rod can connect the piece 42 to drive the two moving blocks 41 to retract into the plug-in block 38. Then the operator can separate the sealing cover 13 from the assembly cover 12 and perform maintenance operations on the U-shaped tube 20 and other components. After the maintenance is completed, the above process can be repeated to reinsert the moving block 41 into the notch, so that the assembly cover 12 and the sealing cover 13 can be reconnected.

[0061] In this technical solution, by arranging the first to fifth heating chambers 8 in the heating box 2 to form a multi-stage heating structure, and cooperating with the independent induction coil 9 in each heating chamber, the sorbite hose steel wire is heated in a zoned and segmented manner. The heating temperature and time of each stage can be accurately controlled according to the material properties and processing requirements of the steel wire, which can greatly improve the plasticity and toughness of the steel wire and reduce the strength and hardness, thus preparing for subsequent wet drawing.

[0062] At the same time, the U-shaped tube 20, the first inlet tube 18, the first return tube 19, the first inlet rack 16, the first return rack 17, the inlet pump 26, the return pump 27, the second return tube 24, the port 25, the second inlet tube 28, the second inlet rack 21, the second return rack 22 and the U-shaped heating tube 23 constitute a heat exchange circulation system, which can efficiently absorb the heat generated during the high-frequency heating of the steel wire, and can use the absorbed heat to preheat the steel wire before heating, thereby reducing energy loss and increasing the effect of subsequent high-frequency heating;

[0063] At the same time, adding components such as the gear ring 31 and cooperating with the fan 30 can effectively remove impurities and oxides on the surface of the steel wire, ensure the cleanliness of the steel wire surface, provide a good foundation for the subsequent heat treatment process, and improve the surface quality and mechanical properties of the final product.

[0064] The interior of the adapter box 15 is provided with a heat-insulating layer 47 to further reduce heat loss.

[0065] Lifting rings 48 are provided at the four corners of the upper side of the sealing cover 13 to facilitate the operator to remove the assembly cover 12 and the sealing cover 13 using a lifting device.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-frequency heat treatment device for sorbite hose steel wire, comprising a base (1), characterized in that: A heating box (2) is provided in the middle portion of the upper side of the base (1); a first heating chamber (4), a second heating chamber (5), a third heating chamber (6), a fourth heating chamber (7) and a fifth heating chamber (8) are respectively separated inside the heating box (2) by a partition (3); an induction coil (9) is provided inside each of the first heating chamber (4), the second heating chamber (5), the third heating chamber (6), the fourth heating chamber (7) and the fifth heating chamber (8); a distribution box (10) electrically connected to the induction coil (9) is provided on the rear side of the heating box (2); and a pretreatment box (11) is provided on one side of the heating box (2); The heating box (2) is provided with an assembly cover (12) on the upper side, and openings corresponding to the first heating chamber (4), the second heating chamber (5), the third heating chamber (6), the fourth heating chamber (7) and the fifth heating chamber (8) are respectively opened on the upper side of the assembly cover (12); a sealing cover (13) is provided on the upper side of the assembly cover (12); strip plates (14) are provided on the front and rear sides of the assembly cover (12); both sides of the strip plates (14) are provided with limiting openings; the lower side of the sealing plate is plugged into the upper side of the assembly cover (12); a snap-on assembly corresponding to the limiting opening is provided on the lower side of the sealing cover (13); a transfer box (15) is provided on the upper side of the sealing cover (13); and the lower side of the sealing cover (13) is provided with a first inlet rack (16) and a first return rack (17) corresponding to the openings; The lower side of the first inlet frame (16) is connected to a plurality of first inlet pipes (18), and the lower side of the first return frame (17) is connected to a plurality of first return pipes (19). The lower sides of the first inlet pipe (18) and the first return pipe (19) are both connected to a U-shaped pipe (20), and the lower side of the U-shaped pipe (20) is close to the induction coil (9). A cleaning component is provided on one side of the pretreatment box (11). The upper sides of the pretreatment box (11) are respectively provided with a second inlet frame (21) and a second return frame (22). The interior of the pretreatment box (11) is evenly provided with a plurality of U-shaped heating pipes (23). The upper sides of the U-shaped heating pipes (23) pass through the pretreatment box (11) and are respectively connected to the second inlet frame (21) and the second return frame (22). A second return pipe (24) and a port (25) are respectively provided inside the transfer box (15); an inlet pump (26) and a return pump (27) are respectively provided on one side of the transfer box (15); the inlet pump (26) is communicated with the port (25); the return pump (27) is communicated with the second return pipe (24); the lower side of the second return pipe (24) is communicated with the first return rack (17); one side of the port (25) is communicated with multiple groups of second inlet pipes (28); one end of the second inlet pipe (28) is communicated with the first inlet rack (16); the inlet pump (26) and the return pump (27) are respectively communicated with the second inlet rack (21) and the second return rack (22) through a delivery pipe (29).

2. A high-frequency heat treatment device for sorbite hose steel wire according to claim 1, characterized in that: The cleaning assembly comprises a fan (30) arranged on the upper side of the pretreatment box (11); a gear ring (31) is rotatably connected to one side of the pretreatment box (11); a driving member (32) is arranged on the lower side of the pretreatment box (11); and a driving gear (33) is arranged at the driving end of the driving member (32); The air outlet of the fan (30) is connected to a three-way pipe (34), one side of the three-way pipe (34) is connected to an exhaust rack (35), a plurality of blowing heads (36) are arranged inside the exhaust rack (35), and bristles (37) are evenly arranged inside the gear ring (31).

3. The high-frequency heat treatment device for sorbite hose steel wire according to claim 2, characterized in that: The clamping assembly includes a plug-in block (38), the plug-in block (38) is hollow inside, the lower wall surface of the plug-in block (38) is rotatably connected to a screw rod (39), the upper side of the screw rod (39) passes through the wall surface of the sealing cover (13) and extends from the upper side of the sealing cover (13), and the lower side of the screw rod (39) is threadedly connected to a lifting block (40); The plug-in block (38) is plugged with a moving block (41) on both sides. A connecting piece (42) is provided on one side of the moving block (41). One side of the connecting piece (42) is connected to the inner wall of the plug-in block (38) through a spring rod. A spherical block (43) is provided on the other side of the connecting piece (42). Notches corresponding to the moving block (41) are provided on the inner walls of both sides of the limiting opening.

4. A high-frequency heat treatment device for sorbite hose steel wire according to claim 3, characterized in that: Circular through holes (44) corresponding to each other are provided inside both sides of the pretreatment box (11), the first heating chamber (4), the second heating chamber (5), the third heating chamber (6), the fourth heating chamber (7) and the fifth heating chamber (8), and the circular through holes (44) are located on the same axis as the center of the induction coil (9) and the center of the gear ring (31).

5. The high-frequency heat treatment device for sorbite hose steel wire according to claim 4, characterized in that: The first heating chamber (4), the second heating chamber (5), the third heating chamber (6), the fourth heating chamber (7) and the fifth heating chamber (8) are all provided with heating chambers (45) on their lower sides, and heat conducting plates (46) are evenly inserted into the inner walls of the upper sides of the heating chambers (45), and the lower sides of the heating chambers (45) are interconnected through connecting ports.

6. The high-frequency heat treatment device for sorbite hose steel wire according to claim 5, characterized in that: The upper side of the lifting block (40) is spherical, and arc-shaped grooves corresponding to the spherical block (43) are provided on both sides of the lifting block (40).

7. The high-frequency heat treatment device for sorbite hose steel wire according to claim 6, characterized in that: A heat-insulating layer (47) is provided inside the transfer box (15).

8. The high-frequency heat treatment device for sorbite hose steel wire according to claim 7, characterized in that: The upper side of the heat conducting sheet (46) is bent.

9. The high-frequency heat treatment device for sorbite hose steel wire according to claim 8, characterized in that: The four corners on the upper side of the sealing cover (13) are all provided with hanging rings (48).

10. The high-frequency heat treatment device for sorbite hose steel wire according to claim 9, characterized in that: A knob (49) is provided on the upper side of the screw rod (39).

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