High-speed annealing device for copper shaft sleeve production

Abstract

The utility model discloses a high-speed annealing device for copper shaft sleeve production. The high-speed annealing device comprises a hood and a circulating feeding assembly assembled in the hood. A heating cavity, a heat preservation cavity, a cooling cavity and a loading and unloading station which are connected end to end are arranged in the machine cover. The heating cavity and the heat preservation cavity are arranged in the horizontal direction, and the cooling cavity and the loading-unloading station are located below the heating cavity and the heat preservation cavity. The circulating feeding assembly sequentially passes through all the cavities and stations, and it is ensured that the annealing process of the copper shaft sleeve is automatically completed. The circulating feeding assembly comprises a driving chain wheel, a guide chain wheel, a transmission chain and a driving motor, and the transmission chain is installed on the chain wheel in a closed ring shape and driven by the motor. The assembly support, the material box and the hanging frame assembly are matched together, and stable conveying and machining of the copper shaft sleeve are achieved. By optimizing the structural design, the device realizes the high-efficiency, low-cost and high-quality copper shaft sleeve production annealing process, and has remarkable practical value and popularization prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of copper bushing production, specifically a high-speed annealing device for copper bushing production. Background Art

[0002] As a commonly used component in industry, copper bushings usually need to be annealed during the production process to eliminate internal stress of the material, improve the organizational structure, and enhance its mechanical properties and corrosion resistance. In traditional copper bushing annealing, heating, heat preservation, and cooling often use separate devices, resulting in many problems in the entire operation process.

[0003] First of all, existing annealing devices usually separate the heating, heat preservation, and cooling processes. During operation, workers need to first load the copper bushing into the heating and heat preservation equipment, heat it to a specific temperature and keep it for a period of time. Subsequently, workers must manually remove the heated copper bushing from the heating and heat preservation equipment and transfer it to the cooling equipment for cooling. After annealing, the cooled copper bushing also needs to be manually unloaded from the cooling equipment.

[0004] This split operation method leads to the following problems:

[0005] 1. Low degree of automation: The entire annealing process requires a large amount of manual intervention, including steps such as loading, transferring, and unloading, which makes the automation level of the production process relatively low.

[0006] 2. Low production efficiency: Since multiple links require manual operation, workers need to spend a lot of time transferring and operating between equipment, thus affecting the overall production efficiency.

[0007] 3. Increased production cost: The low automation level and high manual dependence increase labor costs. At the same time, it may also lead to mistakes by workers during operation, further increasing production costs.

[0008] 4. Poor annealing quality: During the manual transfer process, the copper bushing may be affected by the external environment, resulting in uneven temperature, thus affecting the annealing effect. Eventually, the annealing quality is unstable and the product qualification rate decreases.

[0009] Therefore, how to design a high-speed annealing device for copper bushings that can integrate heating, heat preservation, and cooling, improve the automation level of the production process, reduce manual intervention, and improve the annealing quality has become an urgent problem to be solved currently. Content of the Utility Model

[0010] Aiming at the above deficiencies existing in the prior art, the purpose of the utility model is to provide a high-speed annealing device for copper bushing production that can improve the automation level of the production process, reduce manual intervention, and improve the annealing quality.

[0011] The technical solution adopted by the present utility model to achieve the above object is as follows: A high-speed annealing device for copper bushing production, including a machine cover and a circulating feeding component assembled in the machine cover. A heating chamber, a heat preservation chamber, a cooling chamber, and a loading and unloading station that are kept in circular communication from beginning to end are arranged in the inner cavity of the machine cover. The heating chamber and the heat preservation chamber are arranged along the same horizontal direction. The cooling chamber and the loading and unloading station are arranged below the heating chamber and the heat preservation chamber. The circulating feeding component is arranged in sequence through the heating chamber, the heat preservation chamber, the cooling chamber, and the loading and unloading station.

[0012] The circulating feeding component includes a driving sprocket, a guiding sprocket, a transmission chain, and a driving motor. The driving sprocket and the guiding sprocket are both rotatably installed in the machine cover. The transmission chain is arranged in a closed manner and assembled on the driving sprocket and the guiding sprocket. The driving motor is in power connection with the driving sprocket.

[0013] It further includes an assembly bracket, a material box, and a hanging bracket assembly. Multiple groups of assembly brackets are evenly assembled on the transmission chain. Leakage holes are evenly opened on the side wall of the material box. A hanging bracket assembly is assembled on the top of the material box. The hanging bracket assembly is matched and combined with the assembly bracket.

[0014] In some of the embodiments, in order to ensure that the circulating feeding component can be stably installed and operated in the machine cover, and at the same time ensure that the material box and the copper bushing transported thereon can be stably transported to the loading and unloading station after being cooled in the cooling chamber, the following technical solution is provided.

[0015] The transmission chain includes a first straight section, a second straight section, a third straight section, a slope section, a first connection section, and a second connection section. The first straight section is arranged in the heating chamber and the heat preservation chamber. The second straight section is arranged in the cooling chamber. The third straight section is arranged at the loading and unloading station. The third straight section is arranged higher than the second straight section. The slope section is connected to the second straight section and the third straight section. The first connection section is connected to the first straight section and the second straight section. The second connection section is connected to the third straight section and the first straight section.

[0016] The transmission chain includes two groups arranged side by side. Driving sprockets and guiding sprockets are both equipped on the two groups of transmission chains. The driving sprockets and the guiding sprockets are both arranged at the inflection points of the transmission chain. The two driving sprockets are fixedly connected coaxially through a connecting shaft. The output shaft of the driving motor is fixedly connected to the connecting shaft.

[0017] In some of the embodiments, in order to ensure that the assembly bracket can be stably installed on the transmission chain and ensure the structural stability of the assembly bracket installation during the transmission of the transmission chain, the following technical solution is provided.

[0018] The assembly bracket includes an assembly rod and two groups of connecting rods. The two ends of the two groups of connecting rods are fixedly connected to the chain pins on the two groups of transmission chains respectively. Both ends of the connecting rod are fixedly connected with connecting plates. The two ends of the assembly rod are rotatably connected to the connecting plates. The hanger assembly is assembled in a matching manner with the assembly rod.

[0019] In some embodiments, to ensure that the hanger assembly can be stably assembled onto the assembly rod of the assembly bracket and at the same time facilitate the quick disassembly and assembly of the hanger assembly and the assembly rod, the following technical solutions are provided.

[0020] The hanger assembly includes a hanging plate, a pressing seat, a return spring, and a clamping plate. The pressing seat is slidably installed on the top of the hanging plate. The return spring is arranged between the pressing seat and the hanging plate. The bottom of the hanging plate is fixedly connected to the material box. The clamping plate includes two groups symmetrically arranged on both sides of the pressing seat. Two support frames that are cross-arranged are fixedly connected to the two clamping plates. The middle sections of the two support frames are coaxially hinged to the hanging plate. Connecting frames are hinged on both sides of the pressing seat. The two connecting frames are respectively hinged to the two support frames. The bottom surface of the pressing seat and the inner side surface of the clamping plate are nested and fitted with the assembly rod.

[0021] In some embodiments, to ensure that the material box can be fixedly connected to the bottom of the hanging plate and the hanger assembly assembles the material box onto the assembly bracket, the following technical solutions are provided.

[0022] An installation bracket is fixedly assembled on the top of the material box. The installation bracket is fixedly connected to the bottom of the hanging plate.

[0023] Advantages of the utility model:

[0024] 1. Improved automation: The device realizes an integrated design of the heating, heat preservation, and cooling links. Through the unique structural design of the circulating feeding component, the assembly bracket, and the hanger assembly, the copper bushing does not require manual intervention during the entire annealing process. From heating to cooling, it is all automatically completed by the device, greatly reducing the steps of manual operation and significantly improving the automation level of the production process.

[0025] 2. Increased production efficiency: Since the device can automatically complete the entire process from loading, annealing to cooling without manual transfer between equipment by workers, it greatly shortens the annealing operation time and significantly improves the production efficiency of copper bushings.

[0026] 3. Reduced production cost: This solution reduces the dependence on manual operation and lowers the labor cost. In addition, by reducing human errors in operation, it also reduces the rework cost caused by improper operation, further optimizing the production cost structure.

[0027] 4. Stable annealing quality: Through the integrated annealing device, the copper bushings do not need to be exposed to the external environment during the heating, heat preservation, and cooling processes, thus avoiding the problem of uneven temperature caused by environmental temperature changes or manual operation errors, ensuring the stability of the annealing process, improving the annealing quality of the copper bushings, and ensuring the qualified rate of the products.

[0028] In summary, through the structural optimization and functional integration of the annealing device for copper bushings, the present invention realizes an efficient, low-cost, and high-quality annealing process for the production of copper bushings, with significant practical value and popularization prospects. Brief Description of the Drawings

[0029] Figure 1 It is a schematic diagram of the external structure of the present utility model;

[0030] Figure 2 It is a schematic diagram of the structures of the components installed inside the machine cover of the present utility model;

[0031] Figure 3 It is a schematic diagram of the combined structure of the circulating feeding component, the assembly bracket, the material box, and the hanging component;

[0032] Figure 4 It is a detailed schematic diagram of the combined structure of the transmission chain and the assembly bracket;

[0033] Figure 5 It is a schematic diagram of the combined structure of the assembly bracket, the hanging component, and the material box;

[0034] Figure 6 It is a schematic diagram of the hanging component;

[0035] Figure 7 It is a schematic diagram of the combined structure of the pressure seat, the return spring, and the clamping plate in the hanging component.

[0036] In the figure: 1 machine cover, 101 heating chamber, 102 heat preservation chamber, 103 cooling chamber, 104 loading and unloading station, 11 loading and unloading through port, 12 transverse partition, 121 relief through port, 13 longitudinal partition A, 131 communication port A, 14 longitudinal partition B, 141 communication port B, 15 assembly cushion seat, 21 driving sprocket, 211 connecting shaft, 22 guiding sprocket, 23 transmission chain, 231 first straight section, 232 second straight section, 233 third straight section, 234 ramp section, 235 first connecting section, 236 second connecting section, 24 driving motor, 25 supporting sprocket, 3 assembly bracket, 31 assembly rod, 32 connecting plate, 321 connecting plate, 4 material box, 41 mounting bracket, 42 wing seat, 5 hanging component, 51 hanging plate, 511 upper arc section, 512 lower arc section, 513 connecting seat, 52 pressure seat, 521 connecting frame, 522 pin rod, 53 return spring, 54 clamping plate, 541 support frame. Detailed Embodiment

[0037] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0038] Please refer to Figure 1-7 , a high-speed annealing device for copper bushing production, including a machine cover 1 and a circulating feeding component assembled in the machine cover 1. A heating chamber 101, a heat preservation chamber 102, a cooling chamber 103, and a loading and unloading station 104 that are kept in circular communication at the head and tail are arranged in the inner cavity of the machine cover 1. The heating chamber 101 and the heat preservation chamber 102 are arranged along the same horizontal direction. The cooling chamber 103 and the loading and unloading station 104 are arranged below the heating chamber 101 and the heat preservation chamber 102. The circulating feeding component is sequentially arranged through the heating chamber 101, the heat preservation chamber 102, the cooling chamber 103, and the loading and unloading station 104.

[0039] The circulating feeding component includes a driving sprocket 21, a guiding sprocket 22, a transmission chain 23, and a driving motor 24. The driving sprocket 21 and the guiding sprocket 22 are both rotatably installed in the machine cover 1. The transmission chain 23 is arranged in a closed manner and assembled on the driving sprocket 21 and the guiding sprocket 22. The driving motor 24 is in power connection with the driving sprocket 21;

[0040] It further includes an assembly bracket 3, a material box 4, and a hanging bracket assembly 5. Multiple groups of assembly brackets 3 are evenly assembled on the transmission chain 23. Leakage holes are evenly opened on the side wall of the material box 4. A hanging bracket assembly 5 is assembled on the top of the material box 4. The hanging bracket assembly 5 is matched with the assembly bracket 3.

[0041] The setting of the machine cover 1 can ensure the stable assembly of the circulating feeding component therein, and form the heating chamber 101, the heat preservation chamber 102, the cooling chamber 103, and the loading and unloading station 104 in the machine cover 1. The material box 4 is loaded with copper bushings to be annealed and is assembled on the assembly bracket 3 through the hanging bracket assembly 5. The circulating feeding component drives the material box 4 and the copper bushings therein to transfer at the heating chamber 101, the heat preservation chamber 102, the cooling chamber 103, and the loading and unloading station 104.

[0042] The material box 4 containing copper bushings and the supporting hanging bracket assembly 5 are hung on the empty assembly bracket 3 at the loading and unloading station 104 and are driven by the circulating feeding component to be transferred to the heating chamber 101. Induction heating equipment is assembled on both sides of the running path of the loaded material box 4 in the heating chamber 101. The copper bushings are heated by electromagnetic induction, which has the characteristics of fast heating speed and high efficiency. The heating temperature is usually between 450°C and 700°C, and the specific temperature depends on the composition of the material and the final performance requirements.

[0043] After that, the circulating feeding component continues to carry the heated copper bushing and the feed box 4 into the heat preservation cavity 102. Heat preservation layers are attached to the inner walls of the heating cavity 101 and the heat preservation cavity 102 to avoid heat dissipation during the heating and heat preservation processes. Electric heating wires can also be installed in the heat preservation cavity 102 to regulate the ambient temperature in the heat preservation cavity 102, so that the copper bushing is continuously heat-preserved between 450°C and 700°C. The time for the circulating feeding component to drive the feed box 4 and the copper bushing to run therein is controlled within 5 - 30 minutes to make the internal temperature of the copper bushing uniform, eliminate residual stress and homogenize the crystal grains.

[0044] Then, the circulating feeding component continues to carry the heat-preserved copper bushing and the feed box 4 into the lower cooling cavity 103. Cooling oil that circulates is added to the cooling cavity 103. The cooling oil can quickly cool the copper bushing to prevent the crystal grains from growing excessively and maintain the good toughness and mechanical properties of the material. During the cooling process of the copper bushing, the feed box 4 and the hanging rack component 5 can also be cooled simultaneously.

[0045] Finally, the circulating feeding component continues to carry the cooled copper bushing and the feed box 4 to the loading and unloading station 104. A robotic arm can be installed at the loading and unloading station 104 to remove the feed box 4 and the skeleton component loaded on the assembly bracket 3 together, so that the assembly bracket 3 is vacated, and the feed box 4 and the copper bushing without annealing treatment are re-mounted on the assembly bracket 3 to perform the annealing operation of the next batch of copper bushings.

[0046] Loading and unloading through openings 11 opposite to the loading and unloading station 104 are also provided on both sides of the machine cover 1 to facilitate the installation of the robotic arm here and complete the loading and unloading work of the feed box 4 and the copper bushing.

[0047] A horizontally arranged transverse partition 12 is fixedly connected in the machine cover 1. Yielding openings 121 are provided at both ends of the transverse partition 12 to ensure the normal passage of the circulating feeding component and the carried assembly bracket 3, feed box 4, and hanging rack component 5. The upper part of the transverse partition 12 is set as the heating cavity 101 and the heat preservation cavity 102. A longitudinal partition A13 is fixedly connected above the transverse partition 12. The longitudinal partition A13 is used to separate the heating cavity 101 from the heat preservation cavity 102, and a communication opening A131 for connecting the heating cavity 101 and the heat preservation cavity 102 is provided on the longitudinal partition A13. A longitudinal partition B14 arranged below the transverse partition 12 is fixedly connected to the bottom of the machine cover 1. A communication opening B141 is provided between the longitudinal partition B14 and the transverse partition 12. The longitudinal partition B14 can ensure the stable storage of the cooling oil in the cooling cavity 103, and at the same time ensure the transfer of the cooled copper bushing and the feed box 4 from the communication opening B141 to the loading and unloading station 104.

[0048] In order to ensure that the circulating feeding assembly can be stably installed and operated in the machine cover 1, and at the same time ensure that the material box 4 and copper sleeve transmitted thereon can be stably transported to the loading and unloading station 104 after cooling in the cooling chamber 103, the following technical solution is provided.

[0049] The transmission chain 23 includes a first straight section 231, a second straight section 232, a third straight section 233, a ramp section 234, a first connecting section 235, and a second connecting section 236. The first straight section 231 is arranged in the heating chamber 101 and the insulation chamber 102, the second straight section 232 is arranged in the cooling chamber 103, the third straight section 233 is arranged at the loading and unloading station 104, the third straight section 233 is arranged higher than the second straight section 232, the ramp section 234 is connected to the second straight section 232 and the third straight section 233, the first connecting section 235 is connected to the first straight section 231 and the second straight section 232, and the second connecting section 236 is connected to the third straight section 233 and the first straight section 231.

[0050] The transmission chain 23 includes two groups arranged side by side. Both groups of transmission chains 23 are equipped with a driving sprocket 21 and a guide sprocket 22. The driving sprocket 21 and the guide sprocket 22 are arranged at the turning point of the transmission chain 23. The two groups of driving sprockets 21 are coaxially fixedly connected by a connecting shaft 211, and the output shaft of the driving motor 24 is fixedly connected to the connecting shaft 211.

[0051] The coaxially arranged guide sprockets 22 are rotatably mounted on the side wall of the hood 1 on the corresponding side and are not directly connected, thereby avoiding spatial motion interference with the assembly bracket 3, the material box 4, and the rack assembly 5 being transmitted.

[0052] The first connecting section 235 and the second connecting section 236 are respectively passed through the clearance holes at both ends of the transverse partition 12, and the driving sprocket 21 is assembled to the inflection point position associated with the second straight section 232, the third straight section 233, and the slope section 234. When the transmission chain 23 drives the assembly bracket 3, the material box 4, and the hanging rack assembly 5 for transmission, there will be no spatial motion interference with the connecting shaft 211 fixed at the axis of the two sets of driving sprockets 21.

[0053] An assembly seat 15 is fixedly connected to the outer wall of the hood 1, and a drive motor 24 is fixedly installed on the assembly seat 15. The drive motor 24 adopts a reduction motor to achieve the purpose of reducing speed and increasing torque, so as to stably drive the transmission chain 23 to run slowly and stably.

[0054] To prevent the first straight section 231, the second straight section 232, and the third straight section 233 of the drive chain 23 from sinking due to excessive span, support sprockets 25 are also installed below the first straight section 231, the second straight section 232, and the third straight section 233. The support sprockets 25 are rotatably installed on the inner wall of the corresponding side of the hood 1 and are kept meshed with the drive chain 23 to achieve stable support for the drive chain 23, thereby ensuring the stable transmission of the assembly bracket 3, the material box 4, and the hanger assembly 5 on the drive chain 23.

[0055] To ensure that the assembly bracket 3 can be stably installed on the drive chain 23 and the structural stability of the installation of the assembly bracket 3 can be ensured during the transmission of the drive chain 23, the following technical solutions are provided.

[0056] The assembly bracket 3 includes an assembly rod 31 and two groups of connecting rods 32. The two ends of the two groups of connecting rods 32 are respectively fixedly connected to the chain pins on the two groups of drive chains 23. Both ends of the connecting rod 32 are fixedly connected with connecting plates 321. The two ends of the assembly rod 31 are rotatably connected to the connecting plates 321. The hanger assembly 5 is assembled in a matching manner with the assembly rod 31.

[0057] By arranging two groups of connecting rods 32 to be connected to the coaxially arranged chain pins on the two groups of drive chains 23 and rotatably connecting the connecting plates 321 with the assembly rod 31, when the assembly bracket 3 runs to the inflection point position along with the drive chain 23, the two groups of connecting rods 32 and the connecting plates 321 can jointly support the assembly rod 31, ensuring the structural stability of the assembly rod 31 itself, and further ensuring the stable installation of the hanger assembly 5 on the assembly rod 31.

[0058] The assembly rod 31 is installed in a relatively rotatable manner to ensure that the material box 4 and the hanger assembly 5 are always arranged and run in the vertical direction under their own gravity.

[0059] To ensure that the hanger assembly 5 can be stably assembled to the assembly rod 31 on the assembly bracket 3 and at the same time facilitate the quick disassembly and assembly of the hanger assembly 5 and the assembly rod 31, the following technical solutions are provided.

[0060] The hanger assembly 5 includes a hanging plate 51, a pressing seat 52, a return spring 53, and a clamping plate 54. The pressing seat 52 is slidably installed on the top of the hanging plate 51. The return spring 53 is arranged between the pressing seat 52 and the hanging plate 51. The bottom of the hanging plate 51 is fixedly connected to the material box 4. The clamping plate 54 includes two groups symmetrically arranged on both sides of the pressing seat 52. Two support frames 541 that are cross-arranged are fixedly connected to the two groups of clamping plates 54. The middle sections of the two support frames 541 are coaxially hinged to the hanging plate 51. Connecting frames 521 are hinged to both sides of the pressing seat 52. The two connecting frames 521 are respectively hinged to the two support frames 541. The bottom surface of the pressing seat 52 and the inner side surface of the clamping plate 54 are both nested and fitted with the assembly rod 31.

[0061] The top of the hanging plate 51 is provided with an upper arc section 511. A vertically arranged pin rod 522 is fixedly connected to the top of the pressing seat 52. The pin rod 522 is slidably inserted into the upper arc section 511, which can ensure that the pressing seat 52 slides stably in the vertical direction in the hanging plate 51. The return spring 53 is arranged around the pin rod 522 and its two ends are respectively in contact with the upper arc section 511 and the pressing seat 52. Vertically downward extending connecting seats 513 are fixedly connected to both ends of the upper arc section 511, and the middle sections of the support frames 541 are all hinged to the connecting seats 513.

[0062] When the hanging frame assembly 5 is not assembled with the assembly rod 31, the pressing seat 52 slides downward under the action of the return spring 53, and then drives the support frame 541 and the clamping plate 54 to turn to both sides through the connecting bracket, so that the clamping plate 54 is in an open posture. When assembling the hanging frame assembly 5 to the assembly rod 31, the pressing seat 52 is abutted above the assembly rod 31. Under the combined gravity of the hanging frame assembly 5, the material box 4 and the loaded copper bushings, the whole hanging plate 51 moves downward, and then the pressing seat 52 overcomes the resistance of the return spring 53 and jacks upward, driving the support frame 541 and the clamping plate 54 to close inward through the connecting frame 521, and the assembly rod 31 is tightly held by the pressing seat 52 and the two clamping plates 54 together to realize the fixed combination with the assembly rod 31.

[0063] To ensure that the material box 4 can be fixedly connected to the bottom of the hanging plate 51, the material box 4 is assembled to the assembly bracket 3 by the hanging frame assembly 5, and the following technical solutions are provided for this.

[0064] An installation bracket 41 is fixedly assembled on the top of the material box 4, and the installation bracket 41 is fixedly connected to the bottom of the hanging plate 51.

[0065] Multiple groups of wing seats 42 are welded on the outer edge of the top of the material box 4 and are fixedly connected to the outer ends of the installation bracket 41 by means of bolts. A lower arc section 512 is provided at the bottom of the hanging plate 51, and the lower arc section 512 is fixedly combined with the top of the installation bracket 41 by means of bolts.

[0066] The installation bracket 41, the material box 4 and the hanging plate 51 are fixedly combined by means of bolts, which is convenient for disassembly, assembly and maintenance, and can ensure the stable installation of the material box 4 at the bottom of the hanging plate 51.

[0067] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0068] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and 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.

Claims

1. A high-speed annealing device for copper sleeve production, characterized in that: The invention comprises a hood (1) and a circulating feeding assembly assembled in the hood (1); a heating chamber (101), a heat preservation chamber (102), a cooling chamber (103), and a loading and unloading station (104) which are connected in a head-to-tail circulation manner are arranged in the inner chamber of the hood (1); the heating chamber (101) and the heat preservation chamber (102) are arranged along the same horizontal direction; the cooling chamber (103) and the loading and unloading station (104) are arranged below the heating chamber (101) and the heat preservation chamber (102); and the circulating feeding assembly is arranged in sequence through the heating chamber (101), the heat preservation chamber (102), the cooling chamber (103), and the loading and unloading station (104); The circulating feeding assembly comprises a driving sprocket (21), a guide sprocket (22), a transmission chain (23), and a driving motor (24); the driving sprocket (21) and the guide sprocket (22) are both rotatably mounted in the machine cover (1); the transmission chain (23) is arranged in a closed manner and assembled on the driving sprocket (21) and the guide sprocket (22); and the driving motor (24) maintains a power connection with the driving sprocket (21); It also includes an assembly bracket (3), a material box (4), and a hanger assembly (5); a plurality of assembly brackets (3) are evenly assembled on the transmission chain (23); leakage holes are evenly opened on the side wall of the material box (4); a hanger assembly (5) is assembled on the top of the material box (4); and the hanger assembly (5) is matched with the assembly bracket (3).

2. A high-speed annealing device for copper sleeve production according to claim 1, characterized in that: The transmission chain (23) comprises a first straight section (231), a second straight section (232), a third straight section (233), a ramp section (234), a first connecting section (235), and a second connecting section (236); the first straight section (231) is arranged in the heating chamber (101) and the heat preservation chamber (102); the second straight section (232) is arranged in the cooling chamber (103); the third straight section (233) is arranged at the loading and unloading station (104); the third straight section (233) is arranged higher than the second straight section (232); the ramp section (234) is connected to the second straight section (232) and the third straight section (233); the first connecting section (235) is connected to the first straight section (231) and the second straight section (232); the second connecting section (236) is connected to the third straight section (233) and the first straight section (231); The transmission chain (23) comprises two groups arranged side by side, and the two groups of transmission chains (23) are both equipped with a driving sprocket (21) and a guide sprocket (22). The driving sprocket (21) and the guide sprocket (22) are both arranged at the inflection point of the transmission chain (23). The two groups of driving sprockets (21) are coaxially fixedly connected through a connecting shaft (211), and the output shaft of the driving motor (24) is fixedly connected to the connecting shaft (211).

3. A high-speed annealing device for copper sleeve production according to claim 1, characterized in that: The assembly bracket (3) comprises an assembly rod (31) and two groups of connecting rods (32), the two ends of the two groups of connecting rods (32) are respectively fixedly connected to the chain pins on the two groups of transmission chains (23), the two ends of the connecting rods (32) are fixedly connected to connecting plates (321), the two ends of the assembly rod (31) and the connecting plates (321) are rotationally connected, and the hanger assembly (5) is matched with the assembly rod (31).

4. A high-speed annealing device for copper sleeve production according to claim 3, characterized in that: The hanging bracket assembly (5) comprises a hanging plate (51), a pressure seat (52), a return spring (53), and a clamping plate (54); the pressure seat (52) is slidably mounted on the top of the hanging plate (51); the return spring (53) is arranged between the pressure seat (52) and the hanging plate (51); the bottom of the hanging plate (51) is fixedly connected to the material box (4); the clamping plate (54) comprises two groups symmetrically arranged on both sides of the pressure seat (52); the two groups of clamping plates (54) are fixedly connected with support frames (541) for maintaining a cross arrangement; the middle sections of the two groups of support frames (541) are coaxially hinged to the hanging plate (51); the two sides of the pressure seat (52) are hinged with connecting frames (521); the two groups of connecting frames (521) are respectively hinged to the two groups of support frames (541); the bottom surface of the pressure seat (52) and the inner side surface of the clamping plate (54) are both nested and matched with the assembly rod (31).

5. A high-speed annealing device for copper sleeve production according to claim 4, characterized in that: A mounting bracket (41) is fixedly mounted on the top of the material box (4), and the mounting bracket (41) is fixedly connected to the bottom of the hanging plate (51).

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