A heating device for producing copper-coated steel grounding strand

Abstract

The present application relates to copper clad steel ground wire production technical field, disclose a kind of heating device for copper clad steel ground wire production, comprising: annealing furnace, its inner wall is equipped with heating band, and first opening and closing door and second opening and closing door are symmetrically arranged on it, the present application when sliding frame is in retracted state, ground wire is inserted into second opening and closing door from first opening and closing door one end through guide wheel, then ground wire is guided to first opening and closing door again through guide wheel from second opening and closing door, so as to repeat several times from bottom to top and be clamped and fixed by terminal clamping assembly, then all sliding frame is switched to extended state, the movement of all guide wheels in this process, ground wire will be completely unfolded, and ground wire is automatically sucked into annealing furnace to complete layout work, so as to avoid the problem that field of view and operation space are limited with the increase of ground wire quantity when winding manually, and the whole process does not need to be in-depth into annealing furnace interior.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of copper-coated steel grounding strand production, in particular to a heating device for copper-coated steel grounding strand production. BACKGROUND

[0002] The core of the copper-coated steel grounding strand is steel, and the outer layer is covered with copper, combining the advantages of both metals: high strength of steel and excellent electrical conductivity of copper. In the production process, in order to ensure that the strand has the required physical and electrical properties, annealing treatment must be carried out. The main function of the heating device is to heat the strand to the appropriate temperature to eliminate internal stress and work hardening generated during the manufacturing process through the annealing process, which helps to improve the ductility and toughness of the strand while maintaining its electrical conductivity.

[0003] The traditional annealing process usually involves placing the copper-coated steel grounding strand after stranding into an annealing furnace, closing the door to ensure good sealing, then starting to heat up, and through the temperature control system, ensuring that the temperature in the furnace is uniform and follows the predetermined program. When the furnace temperature reaches the set annealing temperature, it enters the holding stage to allow the internal stress of the strand to be fully released. After the holding stage, the strand is taken out after a period of cooling. During the placement of the strand, in order to avoid uneven annealing caused by the contact between the strands, manual winding of the strands on the shelves is required to ensure proper spacing between the strands. When the number of strands wound increases, the dense arrangement of the shelves significantly increases the difficulty of operation for workers, making it difficult to accurately place the strands in the predetermined position. In addition, due to the need for deep winding into the furnace, the worker's vision and operating space are severely limited, further increasing the difficulty of operation and the risk of error. Long-term repetitive labor can also lead to worker fatigue, affecting work efficiency and winding quality. Therefore, the present application aims to provide a heating device for copper-coated steel grounding strand production that improves the convenience of strand winding and ensures proper spacing between strands. SUMMARY

[0004] The present application aims to address the shortcomings of the prior art by providing a heating device for copper-coated steel grounding strand production to solve the technical problem of reduced work efficiency and winding quality caused by the severe restriction of the worker's vision and operating space when manually winding the strands on the shelves.

[0005] The object of the present application can be achieved by the following technical solutions:

[0006] A heating device for copper-coated steel grounding strand production, comprising:

[0007] The annealing furnace is provided with an electric heating belt on the inner wall, and a first opening and closing door and a second opening and closing door are symmetrically arranged on the annealing furnace, the electric heating belt is connected with a controller, a wire inlet assembly corresponding to the first opening and closing door is arranged on the bottom plate of the annealing furnace, and a terminal clamping assembly corresponding to the second opening and closing door is arranged on the top plate of the annealing furnace, the first bogie and the second bogie are symmetrically arranged and rotatably installed in the annealing furnace, a plurality of guide wheels are fixedly installed on the first bogie and the second bogie and are longitudinally and equally spaced, and the guide wheels on the first bogie and the second bogie are arranged in a staggered manner.

[0008] A plurality of sliding frames are arranged between the first bogie and the second bogie, the sliding frames are slidably installed in the annealing furnace, and adjacent two sliding frames move towards each other, the plurality of sliding frames are driven to move synchronously by the driving assembly, and the plurality of sliding frames are transversely and equally spaced, a plurality of guide wheels are fixedly installed on each sliding frame and are longitudinally and equally spaced, the lowest guide wheel on the sliding frame corresponds to the wire inlet assembly, the highest guide wheel on the sliding frame corresponds to the terminal clamping assembly, and the guide wheels on each first bogie and second bogie are located between adjacent two guide wheels on the sliding frame.

[0009] When the driving assembly drives the plurality of sliding frames to move to the contracted state, one end of the grounding strand is threaded through the wire inlet assembly and sequentially passes around the guide wheels on the first bogie and the second bogie from bottom to top, and is clamped and fixed by the terminal clamping assembly, at this time, the grounding strand blocks the movement track of the sliding frame, when the driving assembly drives the plurality of sliding frames to move to the expanded state, the guide wheels on the sliding frame abut against the grounding strand and drive the grounding strand to move, and the grounding strand drives the first bogie and the second bogie to rotate.

[0010] As a further scheme of the present application, the driving assembly comprises a threaded rod and a synchronous belt, the number of the threaded rods is equal to the number of the sliding frames, each threaded rod is rotatably installed on the annealing furnace, adjacent two threaded rods are connected by the synchronous belt at one end, the threaded directions of the adjacent two threaded rods are opposite, one threaded rod is driven to rotate by a driving source, each threaded rod is threadedly connected with a corresponding sliding frame, and the driving source is connected with the controller.

[0011] As a further scheme of the present application, the guide wheel is designed to be hollow, a plurality of transverse round rods and longitudinal round rods are arranged on the guide wheel, the transverse round rods and the longitudinal round rods are circumferentially arranged, and the outer circumferential surfaces of the transverse round rods and the longitudinal round rods are in contact with the grounding strand.

[0012] As a further scheme of the present application, the transverse round rods and the longitudinal round rods are rotatably installed on the guide wheel, and when the grounding strand moves, the grounding strand drives the transverse round rods and the longitudinal round rods to rotate.

[0013] As a further scheme of the present application: the wire inlet assembly comprises a guide wheel, an extension frame, a sliding block and a limiting wheel, the guide wheel is fixedly installed on the annealing furnace bottom plate, the extension frame is fixedly installed on the guide wheel and is provided with a sliding groove, the sliding block is slidingly installed in the sliding groove and is connected with the sliding groove through a spring, and the limiting wheel is rotatably installed on the sliding block and abuts against the grounding strand.

[0014] As a further scheme of the present application: the terminal clamping assembly comprises a rotating disc and two eccentric sleeves, the rotating disc is arranged on the annealing furnace top plate, the two eccentric sleeves are rotatably installed on the rotating disc and are driven to rotate by an output source, and one end of the grounding strand is located between the two eccentric sleeves.

[0015] As a further scheme of the present application: the rotating disc is rotatably installed on the annealing furnace top plate, when the guide wheel on the sliding frame abuts against the grounding strand and drives the grounding strand to move, the grounding strand drives the rotating disc to rotate.

[0016] As a further scheme of the present application: the annealing furnace is communicated with an air exhaust hole and an air inlet hole, the air exhaust hole is connected with an air exhaust device, the air inlet hole is connected with an air inlet device, and the air exhaust device and the air inlet device are connected with a controller.

[0017] The present application has the following beneficial effects:

[0018] 1. In the present application, the movement of the sliding frame in the annealing furnace enables all the sliding frames to switch between the contracted state and the expanded state, and in the contracted state, the grounding strand is inserted into the second opening and closing door from the first opening and closing door through the guide wheel, and then guided to return to the first opening and closing door from the second opening and closing door through the guide wheel, and this process is repeated several times from bottom to top until the grounding strand is clamped and fixed by the terminal clamping assembly, which is simple in operation and does not require excessive penetration into the interior of the annealing furnace, and then all the sliding frames are switched to the expanded state, and in this process, the movement of all the guide wheels will completely expand the grounding strand and automatically suck the grounding strand into the annealing furnace to complete the layout work without manual guidance, thereby avoiding the problem that the visual field and operation space are limited as the number of wound grounding strands increases during manual winding;

[0019] 2. In the present application, the hollow design of the guide wheel can ensure that the high temperature in the annealing furnace can be radiated to the grounding strand to ensure uniform heating, and the circumferentially arranged horizontal round rods form a ring to support the grounding strand, and the contact area between the grounding strand and the horizontal round rods is very small, which avoids the problem that the contact area between the closed ring and the grounding strand is too large, resulting in uneven heating of the contact surface and uneven annealing, and similarly, the arrangement of the vertical round rods also reduces the contact area between the side edge of the guide wheel and the grounding strand.

[0020] 3、The horizontal circular rod and the vertical circular rod rotate, so that the sliding contact friction of the two with the ground wire is changed into rolling contact friction, the resistance of the guide wheel to the movement of the ground wire is greatly reduced, and the rotation of the horizontal circular rod and the vertical circular rod can also protect the surface of the ground wire. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application will be further described below in combination with the drawings.

[0022] Figure 1 is a schematic diagram of the overall structure of the application;

[0023] Figure 2 is a schematic diagram of the structure of the second opening and closing door in the application;

[0024] Figure 3 is a schematic diagram of the structure of the sliding frame in the contracted state in the application;

[0025] Figure 4 is a schematic diagram of the structure of the sliding frame in the contracted state in the application;

[0026] Figure 5 is a schematic diagram of the structure of the sliding frame in the contracted state in the application; Figure 4 is a schematic diagram of the structure of the sliding frame in the contracted state in the application;

[0027] Figure 6 is a schematic diagram of the structure of the sliding frame in the extended state in the application;

[0028] Figure 7 is a schematic diagram of the structure of the sliding frame in the extended state in the application;

[0029] Figure 8 is a schematic diagram of the structure of the sliding frame in the extended state in the application; Figure 7 is a schematic diagram of the structure of the sliding frame in the extended state in the application;

[0030] Figure 9 is a schematic diagram of the structure of the guide wheel in the application;

[0031] Figure 10 is a schematic diagram of the structure of the wire inlet assembly in the application;

[0032] Figure 11 is a schematic diagram of the structure of the terminal clamping assembly in the application.

[0033] In the figure: 1, annealing furnace; 101, air extraction hole; 102, air filling hole; 103, first opening and closing door; 104, second opening and closing door; 2, grounding strand; 3, incoming wire assembly; 301, extension frame; 302, sliding groove; 303, sliding block; 304, limiting wheel; 305, spring; 4, terminal clamping assembly; 401, rotary disc; 402, eccentric sleeve; 5, sliding frame; 6, guide wheel; 601, transverse round rod; 602, longitudinal round rod; 7, threaded rod; 701, synchronous belt; 8, first bogie; 9, second bogie. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] Please refer to Figures 1-11 As shown in the figure, the present application is a heating device for copper-coated steel grounding strand production, which comprises:

[0036] The annealing furnace 1 is internally provided with an electric heating belt, and a first opening and closing door 103 and a second opening and closing door 104 are symmetrically arranged on the annealing furnace 1. The electric heating belt is connected with a controller. An incoming wire assembly 3 corresponding to the first opening and closing door 103 is arranged on the bottom plate of the annealing furnace 1, and a terminal clamping assembly 4 corresponding to the second opening and closing door 104 is arranged on the top plate of the annealing furnace 1. A first bogie 8 and a second bogie 9 are symmetrically arranged and rotatably installed in the annealing furnace 1. A plurality of guide wheels 6 are fixedly installed on the first bogie 8 and the second bogie 9 in a longitudinal and equidistant manner. The guide wheels 6 on the first bogie 8 are arranged in a staggered manner with the guide wheels 6 on the second bogie 9.

[0037] A plurality of sliding frames 5 are arranged between the first bogie 8 and the second bogie 9. The sliding frames 5 are slidably installed in the annealing furnace 1, and adjacent two sliding frames 5 move towards each other. The plurality of sliding frames 5 are driven to move synchronously by a driving assembly, and are arranged in a transverse and equidistant manner. A plurality of guide wheels 6 are fixedly installed on each sliding frame 5 in a longitudinal and equidistant manner. The guide wheel 6 with the lowest horizontal height on the sliding frame 5 corresponds to the incoming wire assembly 3, and the guide wheel 6 with the highest horizontal height on the sliding frame 5 corresponds to the terminal clamping assembly 4. The guide wheels 6 on each first bogie 8 and second bogie 9 are located between adjacent two guide wheels 6 on the sliding frame 5; and

[0038] The grounding stranded wire 2, when the driving assembly drives the multiple sliding frames 5 to move to the retracted state, one end of the grounding stranded wire 2 passes through the wire feed assembly 3 and passes around the guide wheels 6 on the first bogie 8 and the second bogie 9 from bottom to top, and is then clamped and fixed by the terminal clamping assembly 4. At this time, the grounding stranded wire 2 blocks the moving trajectory of the sliding frame 5. When the driving assembly drives the multiple sliding frames 5 to move to the extended state, the guide wheels 6 on the sliding frame 5 abut against the grounding stranded wire 2 and drive the grounding stranded wire 2 to move, and the grounding stranded wire 2 drives the first bogie 8 and the second bogie 9 to rotate.

[0039] In one case of this embodiment, a temperature monitoring component connected to the controller is provided in the annealing furnace 1. It should be noted that the electric heating belt, controller, and temperature monitoring component described in the present invention are all existing technologies, and the present invention does not improve them. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of the present invention.

[0040] In actual application of this embodiment, when the driving assembly drives the sliding frame 5 to move, the sliding frame 5 will switch between the retracted state and the extended state, such as Figure 3-5 As shown in the figure, all the sliding frames 5 are in a retracted state at this time. The sliding frames 5 are close to the middle of the annealing furnace 1, and only in this state can the operation of placing the grounding stranded wire 2 be performed. When placing the grounding stranded wire 2, the first opening and closing door 103 and the second opening and closing door 104 are opened, and one end of the grounding stranded wire 2 is passed through the wire-inlet assembly 3 from the first opening and closing door 103, and passes through the lowest guide wheel 6 on each sliding frame 5 in turn, and then comes to the lowest guide wheel 6 on the first bogie 8, and one end of the grounding stranded wire 2 is passed along the guide groove of the lowest guide wheel 6 on the first bogie 8 from the second opening and closing door 104, and passes through the guide wheel 6 on each sliding frame 5 in turn to the lowest guide wheel 6 on the second bogie 9, and then guides the grounding stranded wire 2 from the first opening and closing door 103 to pass through the lowest guide wheel 6 on the second bogie 9, and so on, passing through all the guide wheels 6 from bottom to top in turn, and finally one end of the grounding stranded wire 2 comes to the terminal clamping assembly 4 and is clamped and fixed, as shown in FIG. Figure 5 As shown, the preliminary placement of the grounding strand 2 is completed, and at this time the grounding strand 2 blocks the moving path of the sliding frame 5 when it switches to the extended state;

[0041] When the driving assembly drives the sliding frame 5 to switch to the extended state, as shown in FIG. Figure 6-Figure 8The state shown is an example, when the sliding frame 5 moves, it will abut on the ground wire 2 and drive the ground wire 2 to move, since one end of the ground wire 2 is fixed by the terminal clamping assembly 4, the other end of the ground wire 2 will continuously enter from the outside of the annealing furnace 1 and continuously pass through the wire inlet assembly 3, and the process is automatically completed without manual intervention, and when the sliding frame 5 moves to the edge of the annealing furnace 1, the ground wire 2 will drive the guide wheels 6 on the first bogie 8 and the second bogie 9 to deflect, so that the guide grooves on the first bogie 8 and the second bogie 9 are consistent with the direction of the ground wire 2, thereby ensuring smooth movement of the ground wire 2, and finally forming as shown Figure 8 As shown, at this time the ground wire 2 is uniformly wound on the guide wheels 6 in the annealing furnace 1, and the ground wire 2 is spaced apart from each other, ensuring uniform heating, then the controller closes the first opening and closing door 103 and the second opening and closing door 104 to ensure that the annealing furnace 1 is closed, and then the electric heating belt can be opened to heat the ground wire 2, and after heating is completed, the ground wire 2 can be taken out after cooling for a period of time;

[0042] By moving the sliding frame 5 in the annealing furnace 1, all the sliding frames 5 are switched between the contracted state and the expanded state, and in the contracted state, the ground wire 2 is inserted from one end of the first opening and closing door 103 through the guide wheels 6 to the second opening and closing door 104, and then the ground wire 2 is guided from the second opening and closing door 104 through the guide wheels 6 to return to the first opening and closing door 103, and this process is repeated several times from bottom to top until the ground wire 2 is clamped and fixed by the terminal clamping assembly 4, the process is simple to operate and does not need to be deeply inserted into the annealing furnace 1, then all the sliding frames 5 are switched to the expanded state, and during the process, the movement of all the guide wheels 6 will completely unfold the ground wire 2 and automatically suck the ground wire 2 into the annealing furnace 1 to complete the layout work without manual guidance, thereby avoiding the problem that the field of vision and operation space are limited as the number of wound ground wires 2 increases when manually winding.

[0043] As shown Figures 1-8 As a preferred embodiment of the present application, the driving assembly includes a threaded rod 7 and a synchronous belt 701, the number of threaded rods 7 is equal to the number of sliding frames 5, each threaded rod 7 is rotationally installed on the annealing furnace 1, one end of adjacent two threaded rods 7 is drivingly connected through the synchronous belt 701, and the screw directions of adjacent two threaded rods 7 are opposite, one threaded rod 7 is driven to rotate by a driving source, each threaded rod 7 is in threaded connection with the corresponding sliding frame 5, and the driving source is connected with the controller.

[0044] In one case of the present embodiment, the driving source can be selected from servo motors, servo motors and other components, and other mechanisms capable of realizing rotary motion can also be selected, which is not specifically limited in the present embodiment.

[0045] In actual application, since the threaded rods 7 are threadedly connected with the sliding frames 5 and the sliding frames 5 can slide in the annealing furnace 1, when the driving source drives the threaded rods 7 to rotate, the sliding frames 5 slide in the annealing furnace 1, and the synchronous rotation of all the threaded rods 7 is ensured by the synchronous belt 701, and since the threads on the adjacent two threaded rods 7 are in opposite directions, when all the threaded rods 7 rotate synchronously, the moving directions of the adjacent two sliding frames 5 are opposite, which is specifically shown as follows. Figure 5 When all the sliding frames 5 shown in the figure are in the contracted state, after the threaded rods 7 drive the sliding frames 5 to move, all the sliding frames 5 are switched to the extended state shown in the figure. Figure 8 In summary, the high synchronous rotation of the threaded rods 7 avoids the phenomenon of individual lagging of the sliding frames 5 when moving, and the adjacent two sliding frames 5 move in opposite directions, and such symmetrical movement helps to balance the load, so that the process of uniformly expanding the ground wire 2 is more stable.

[0046] As shown in the figure, Figure 9 As a preferred embodiment of the present application, the guide wheel 6 is designed to be hollow, and a plurality of transverse round rods 601 and longitudinal round rods 602 are arranged on the guide wheel 6, and the transverse round rods 601 and the longitudinal round rods 602 are arranged in a circumferential arrangement, and the outer circumferential surfaces of the transverse round rods 601 and the longitudinal round rods 602 are in contact with the ground wire 2.

[0047] In actual application, through the hollow design of the guide wheel 6, it can be ensured that the high temperature in the annealing furnace 1 can be radiated to the ground wire 2, ensuring uniform heating, and the transverse round rods 601 arranged in a circumferential arrangement form a ring for supporting the ground wire 2, and the contact area between the ground wire 2 and the transverse round rods 601 is very small, avoiding the problem that the closed ring has a large contact area with the ground wire 2, resulting in uneven heating of the contact surface and uneven annealing. Similarly, the arrangement of the longitudinal round rods 602 also reduces the contact area between the side edges of the guide wheel 6 and the ground wire 2.

[0048] As shown in the figure, Figure 9 As a preferred embodiment of the present application, the transverse round rods 601 and the longitudinal round rods 602 are rotatably installed on the guide wheel 6, and when the ground wire 2 moves, the ground wire 2 drives the transverse round rods 601 and the longitudinal round rods 602 to rotate.

[0049] In actual application, when the sliding frame 5 is switched from the retracted state to the extended state, the grounding wire 2 moves, and in fact, the grounding wire 2 slides in the guide wheel 6, and when the grounding wire 2 slides, the horizontal circular rod 601 and the longitudinal circular rod 602 rotate due to the friction between the grounding wire 2 and the horizontal circular rod 601 and the longitudinal circular rod 602, so as to convert the sliding contact friction into rolling contact friction, greatly reduce the resistance of the guide wheel 6 to the movement of the grounding wire 2, and the rotation of the horizontal circular rod 601 and the longitudinal circular rod 602 can also protect the surface of the grounding wire 2.

[0050] As shown in Figure 10 As a preferred embodiment of the present application, the wire inlet assembly 3 includes a guide wheel 6, an extension frame 301, a sliding block 303, and a limiting wheel 304, the guide wheel 6 is fixedly installed on the bottom plate of the annealing furnace 1, the extension frame 301 is fixedly installed on the guide wheel 6, and a sliding groove 302 is formed in the extension frame 301, the sliding block 303 is slidingly installed in the sliding groove 302 and connected with the sliding groove 302 through a spring 305, and the limiting wheel 304 is rotatably installed on the sliding block 303 and abuts against the grounding wire 2.

[0051] In actual application, the grounding wire 2 passes through the middle of the guide wheel 6 and the extension frame 301, and the elastic force of the spring 305 enables the limiting wheel 304 to always abut against the grounding wire 2, and the grounding wire 2 abuts against the horizontal circular rod 601, when the sliding frame 5 is switched from the retracted state to the extended state, the grounding wire 2 moves and continuously passes through the middle of the guide wheel 6 and the limiting wheel 304, and the rotation of the limiting wheel 304 and the horizontal circular rod 601 can reduce the resistance of the grounding wire 2, and the elasticity of the spring 305 enables the distance between the limiting wheel 304 and the horizontal circular rod 601 to be variable, so as to adapt to the jumping of the grounding wire 2 when it passes through quickly.

[0052] As shown in Figure 11 As a preferred embodiment of the present application, the terminal clamping assembly 4 includes a rotating disc 401 and two eccentric sleeves 402, the rotating disc 401 is arranged on the top plate of the annealing furnace 1, the two eccentric sleeves 402 are rotatably installed on the rotating disc 401 and driven to rotate by an output source, and one end of the grounding wire 2 is located between the two eccentric sleeves 402.

[0053] In one case of the present embodiment, the output source can be selected from a servo motor, a servo motor, and the like, and can also be manually rotated by artificial manual rotation, which is not specifically limited in the present embodiment

[0054] In actual application, when one end of the grounding wire 2 is placed between the two eccentric sleeves 402, the two eccentric sleeves 402 are driven to rotate by the output source, so that the two eccentric sleeves 402 are close to the grounding wire 2, at this time, the gap between the two eccentric sleeves 402 is reduced, so that the grounding wire 2 can be clamped and fixed, and vice versa, when the two eccentric sleeves 402 rotate away from the grounding wire 2, the fixing effect on the grounding wire 2 is reduced, and the contact area between the eccentric sleeve 402 and the grounding wire 2 is small, so that the grounding wire 2 can be heated at high temperature, and the annealing effect is uniform.

[0055] As shown in Figure 11 As a preferred embodiment of the present application, the rotating disc 401 is rotatably installed on the top plate of the annealing furnace 1, when the guide wheel 6 on the sliding frame 5 abuts against the grounding wire 2 and drives the grounding wire 2 to move, the grounding wire 2 drives the rotating disc 401 to rotate.

[0056] In actual application, through the rotating arrangement of the rotating disc 401, the rotating disc 401 can be adaptively rotated when the grounding wire 2 moves, so that the part of the grounding wire 2 clamped by the rotating disc 401 can always keep straight, avoiding the problem that when one end of the grounding wire 2 is clamped and fixed by the eccentric sleeve 402, the movement of the grounding wire 2 itself causes the contact part between the grounding wire 2 and the eccentric sleeve 402 to be bent at a large angle, thereby playing a protection role.

[0057] As shown in Figure 1 As a preferred embodiment of the present application, the annealing furnace 1 is in communication with the air exhaust hole 101 and the air charging hole 102, the air exhaust hole 101 is connected with an air exhaust device, the air charging hole 102 is connected with an air charging device, and the air exhaust device and the air charging device are respectively connected with a controller.

[0058] In one case of the present embodiment, the air exhaust device can be a vacuum pump, and the air charging device can be a valve and a pipeline system, and the pipeline is connected with a protective gas source such as nitrogen, argon, etc., which is not specifically limited in the present embodiment.

[0059] In actual application, before starting the heating of the electric heating belt, the controller controls the air exhaust device and the air charging device to inject protective gas into the annealing furnace 1 to replace the air in the annealing furnace 1, and continuously supplies the protective gas during the heating stage of the electric heating belt until the grounding wire 2 is completely cooled. By the protective gas, a barrier can be formed to isolate oxygen, thereby preventing the surface of the grounding wire 2 from being oxidized.

[0060] The working principle of the present application: the above embodiment of the present application provides a heating device for copper-coated steel grounding strand production. When the sliding frame 5 is driven by the driving assembly to move, the sliding frame 5 will switch between the contracted state and the expanded state. When all the sliding frames 5 are in the contracted state, the sliding frame 5 is close to the middle part of the annealing furnace 1, and the grounding strand 2 can be placed at this time. When the grounding strand 2 is placed, the driving assembly drives the sliding frame 5 to switch to the expanded state. When the sliding frame 5 moves, it will abut against the grounding strand 2 and drive the grounding strand 2 to move. Since one end of the grounding strand 2 is fixed by the terminal clamping assembly 4, the other end of the grounding strand 2 will continuously enter from the outside of the annealing furnace 1 and continuously pass through the wire inlet assembly 3. Finally, the grounding strand 2 is uniformly wound on the guide wheel 6 in the annealing furnace 1, and the grounding strands 2 are obviously spaced from each other, ensuring uniform heating. Then the controller closes the first opening and closing door 103 and the second opening and closing door 104 to ensure that the annealing furnace 1 is closed, and then the electric heating band is opened to heat the grounding strand 2. After heating, the grounding strand 2 can be taken out after cooling for a period of time.

[0061] The above describes one embodiment of the present application in detail, but the above description is only a preferred embodiment of the present application and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the scope of the present application.

Claims

1. A heating device for producing copper-clad steel grounding stranded wire, characterized in that: include: An annealing furnace (1) has an electric heating belt arranged on its inner wall, and a symmetrically arranged first opening and closing door (103) and a second opening and closing door (104) are provided on the inner wall. The electric heating belt is connected to a controller. A line feed assembly (3) corresponding to the first opening and closing door (103) is provided on the bottom plate of the annealing furnace (1), and a terminal clamping assembly (4) corresponding to the second opening and closing door (104) is provided on the top plate of the annealing furnace (1). A symmetrically arranged first bogie (8) and a second bogie (9) are rotatably installed in the annealing furnace (1). A plurality of longitudinally equidistantly arranged guide wheels (6) are fixedly installed on the first bogie (8) and the second bogie (9). The guide wheels (6) on the first bogie (8) and the guide wheels (6) on the second bogie (9) are staggered. A plurality of sliding frames (5), each of which is located between a first bogie (8) and a second bogie (9), wherein the sliding frames (5) are slidably mounted in the annealing furnace (1), and two adjacent sliding frames (5) move toward each other, the plurality of sliding frames (5) are driven to move synchronously by a driving assembly, and the plurality of sliding frames (5) are arranged at equal intervals in the transverse direction, and each sliding frame (5) is fixedly mounted with a plurality of guide wheels (6) arranged at equal intervals in the longitudinal direction, the guide wheel (6) with the lowest horizontal height on the sliding frame (5) corresponds to the feed assembly (3), and the guide wheel (6) with the highest horizontal height on the sliding frame (5) corresponds to the terminal clamping assembly (4), and the guide wheels (6) on each of the first bogie (8) and the second bogie (9) are located between two adjacent guide wheels (6) on the sliding frame (5); and The grounding stranded wire (2) is a wire that passes through the wire feed assembly (3) and passes through the guide wheels (6) on the first bogie (8) and the second bogie (9) in sequence from bottom to top, and is then clamped and fixed by the terminal clamping assembly (4). At this time, the grounding stranded wire (2) blocks the moving track of the sliding frame (5). When the driving assembly drives the multiple sliding frames (5) to move to the extended state, the guide wheels (6) on the sliding frame (5) abut against the grounding stranded wire (2) and drive the grounding stranded wire (2) to move, and the grounding stranded wire (2) drives the first bogie (8) and the second bogie (9) to rotate.

2. A heating device for producing copper-clad steel grounding stranded wire according to claim 1, characterized in that: The driving assembly comprises a threaded rod (7) and a synchronous belt (701), the number of the threaded rods (7) is equal to the number of the sliding racks (5), each threaded rod (7) is rotatably mounted on the annealing furnace (1), one end of two adjacent threaded rods (7) is connected by a synchronous belt (701), and the thread directions of the two adjacent threaded rods (7) are opposite, one threaded rod (7) is driven to rotate by a driving source, each threaded rod (7) is threadedly connected to the corresponding sliding rack (5), and the driving source is connected to a controller.

3. A heating device for producing copper-clad steel grounding stranded wire according to claim 1, characterized in that: The guide wheel (6) is of hollow design, and is provided with a plurality of transverse round rods (601) and longitudinal round rods (602), and the plurality of transverse round rods (601) and longitudinal round rods (602) are all arranged in a circumferential manner, and the outer circumferential surfaces of the transverse round rods (601) and longitudinal round rods (602) are in contact with the grounding stranded wire (2).

4. A heating device for producing copper-clad steel grounding stranded wire according to claim 3, characterized in that: The transverse round rod (601) and the longitudinal round rod (602) are both rotatably mounted on the guide wheel (6). When the transverse round rod (601) and the longitudinal round rod (602) are in contact with the grounding strand (2) and the grounding strand (2) moves, the grounding strand (2) drives the transverse round rod (601) and the longitudinal round rod (602) to rotate.

5. A heating device for producing copper-clad steel grounding stranded wire according to claim 4, characterized in that: The inlet assembly (3) comprises a guide wheel (6), an extension frame (301), a slider (303) and a limiting wheel (304); the guide wheel (6) is fixedly mounted on the bottom plate of the annealing furnace (1); the extension frame (301) is fixedly mounted on the guide wheel (6) and has a slide groove (302) thereon; the slider (303) is slidably mounted in the slide groove (302) and is connected to the slide groove (302) via a spring (305); the limiting wheel (304) is rotatably mounted on the slider (303) and is in contact with the grounding stranded wire (2).

6. A heating device for producing copper-clad steel grounding stranded wire according to claim 1, characterized in that: The terminal clamping assembly (4) comprises a turntable (401) and an eccentric sleeve (402). The turntable (401) is arranged on the top plate of the annealing furnace (1). There are two eccentric sleeves (402). The two eccentric sleeves (402) are rotatably mounted on the turntable (401) and driven to rotate by an output source. One end of the grounding stranded wire (2) is located between the two eccentric sleeves (402).

7. A heating device for producing copper-clad steel grounding stranded wire according to claim 6, characterized in that: The turntable (401) is rotatably mounted on the top plate of the annealing furnace (1). When the guide wheel (6) on the sliding frame (5) abuts against the grounding strand (2) and drives the grounding strand (2) to move, the grounding strand (2) drives the turntable (401) to rotate.

8. The heating device for producing copper-clad steel grounding stranded wire according to claim 1, characterized in that: The annealing furnace (1) is in communication with an exhaust hole (101) and an air charging hole (102); the exhaust hole (101) is connected to an exhaust device; the air charging hole (102) is connected to an air charging device; and the exhaust device and the air charging device are respectively connected to a controller.

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