High-speed wire finishing area cold dissipation wire equipment and control method

Abstract

The invention discloses high-speed wire finishing area cold dissipation line equipment and a control method, and relates to the technical field of wire rod coil production, the high-speed wire finishing area cold dissipation line equipment comprises a conveying line used for conveying extending and laying-shaped coils and a coil collecting barrel arranged at the tail end of the conveying line, and the conveying line is sequentially provided with a first air cooling assembly and a second air cooling assembly; a travel elevator and a coil receiving vehicle are correspondingly arranged below the coil collecting drum; the air cooling device has the technical advantages that the first air cooling assembly and the second air cooling assembly are arranged on the conveying line of the coil, airflow penetrates through the conveying line to act on the coil, all the communicating pipes in the first air cooling assembly act on the middle portion and the side portion respectively, all the communicating pipes act on the middle portion and the side portion respectively, and after being cooled through the first air cooling assembly, the coil is cooled through the second air cooling assembly. When the temperature of the scattered coil drops below the phase transformation point, the second air cooling assembly is used for transferring the heat of the core part of the wire rod to the surface and taking away the heat; and by arranging the lifting driving structure, the coil falls onto the supporting plate of the stroke lifting machine in advance when falling, and direct impact on the transfer trolley due to falling inertia is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of wire coil production, and in particular to a cooling line equipment and control method in a high-wire finishing zone. Background Art

[0002] In the production process of coils, in order to ensure the surface quality and subsequent processing performance of steel, a series of processing procedures are usually required. Among them, cooling and transportation is a crucial step, which directly affects the final quality of steel. Cooling and transportation refers to the process of cooling and transferring steel coils to storage or the next processing link after the production is completed. This process aims to improve the steel's cooling rate, improve its microstructure, and improve the mechanical properties and surface quality of the steel, thereby ensuring the smooth progress of subsequent processing. At present, most of them use automated cooling and transportation equipment to improve production efficiency, which reduces labor costs and ensures the consistency of steel quality. Application effect Through the implementation of the above-mentioned cooling and transportation technology, the steel in the coil production process can be effectively cooled and properly transferred, which not only improves the surface quality and mechanical properties of the steel, but also ensures the smooth progress of subsequent processing, which is of great significance to improving the overall quality and market competitiveness of steel.

[0003] In the production process of coils, a series of processing procedures are usually required to improve the surface quality and subsequent processing performance of steel. Among them, uniform heat dissipation and stable transportation are two key steps, which directly affect the final quality of steel. In the existing technology, fans are usually used for direct heat dissipation, but because the hot air blows in one direction, the heat dissipation effect is poor and not uniform enough. In addition, after the heat dissipation is completed, the coil needs to be wound into a roll and transported to the outside. How to achieve shaping and stable transportation after the heat dissipation is completed has also become a technical problem that needs to be solved urgently by technicians in this field. Summary of the invention

[0004] This device provides a high-speed wire finishing zone cooling line equipment and control method, and the specific implementation methods are as follows:

[0005] High-speed wire finishing area cooling line equipment, including:

[0006] A conveyor line for conveying extended and stacked coils, wherein a first air cooling component and a second air cooling component acting on the coils are sequentially arranged on the conveyor line;

[0007] The coil collection drum is located at the end of the conveyor line. A travel elevator and a coil receiving vehicle are provided below the coil collection drum. The coil collection drum is used to arrange the extended and stacked coils into a vertical cylindrical structure. Since the coils are conveyed by the elevator in a relay manner, scratches on the surface of the wire rods are avoided when the wire rods fall naturally, ensuring the excellent rate of the surface quality of the wire rods. The coil receiving vehicle is used to transfer the coils.

[0008] The first air cooling component includes connecting pipes arranged in parallel, one end of each connecting pipe is connected to the centrifugal fan, and the other end intersects with the jet hood, and the jet hood is arranged at the bottom of the conveyor line with a gap. A booster nozzle is arranged in each connecting pipe, and the jet hood outputs different wind directions for cooling effects on the coils on the conveyor line.

[0009] Preferably, the conveyor line is erected in an inclined state through a bracket, and the end close to the winding drum is the high end.

[0010] Based on the above technical solution, by alternately arranging the first air-cooling component and the second air-cooling component on the conveying line of the coil, the airflow passes through the conveying line to act on the coil, and the connecting pipes in the first air-cooling component act on the middle and side parts respectively, and the oblique blowing of the second air-cooling component provides a multi-directional cooling effect.

[0011] The first air-cooling assembly and the second air-cooling assembly are alternately arranged on the conveying line of the coil to achieve a multi-directional uniform heat dissipation effect; the first air-cooling assembly arranged on the conveying line cools the middle and side parts of the coil respectively through a plurality of connecting pipes, and the design of each connecting pipe ensures that the airflow can evenly cover different parts of the coil to avoid uneven heat dissipation caused by unidirectional direct blowing. The start-up frequency of the three centrifugal fans is adjusted to adjust the cooling rates of the middle and two side centrifugal fans to be basically the same, thereby reducing the same-turn performance difference of the coil and improving the quality of the coil; the second air-cooling assembly adopts an oblique sweeping method, and the airflow acts on the coil at a certain angle, providing a multi-directional cooling effect, ensuring that the temperature of the entire coil surface can be evenly reduced; the first air-cooling assembly and the second air-cooling assembly are alternately arranged on the conveying line, and the airflow passes through the two assemblies in turn when passing through the conveying line, thereby realizing all-round cooling of the coil. Since the heat dissipation is more uniform, the energy waste caused by local overheating or overcooling is reduced, thereby reducing energy consumption.

[0012] Preferably, the second air-cooling assembly includes a plurality of axial flow fans arranged along the conveying line, and the air duct of each axial flow fan is arranged in an inclined shape relative to the length direction of the conveying line.

[0013] Preferably, the conveyor line is composed of a plurality of rollers, and each roller is connected to the output end of the motor through a chain transmission.

[0014] Based on the above technical solution, a roller conveying structure is adopted to form air paths between adjacent rollers, and the airflow can act on the coils through these air paths; the axial flow fan is arranged obliquely relative to the conveying line to provide an oblique cooling effect along the conveying direction.

[0015] Preferably, the reel collecting drum comprises a vertically conductive fixed drum, a nose cone is axially arranged on the inner side of the fixed drum, and a temporary reel supporting arm for controlling the opening and falling of the reel is arranged at the bottom of the fixed drum.

[0016] Preferably, the head of the nose cone is provided with a conical structure.

[0017] Preferably, the coil receiving vehicle comprises a transfer vehicle arranged on a track, and a coil core frame for receiving the overall vertical annular coil is provided on the top of the transfer vehicle.

[0018] Based on the above technical solution, the temporary coil supporting arm is a conventional opening and closing claw and motor drive structure, which drives a pair or a single opening and closing claw to open and close by a motor, thereby realizing the control of the timing of coil unloading; the head of the nose cone is designed to be conical, which helps the coil to slide smoothly into the coiling position during the unloading process. The conical design reduces the friction between the coil and the nose cone, making it easier for the coil to form a neat roll shape. The nose cone is not only conducive to the unloading and coiling of the coil in shape, but also can be guided by the nose cone to more accurately position the coil to the coiling position, thereby improving the efficiency and quality of the coiling.

[0019] Preferably, the travel elevator includes a column arranged on one side of the coil receiving vehicle, a lifting seat is slidably provided on the column, and a lifting drive structure composed of a counterweight block and a cable is provided between the two, and a pair of support plates and an opening and closing drive component for controlling the opening and closing of the support plates are provided on the lifting seat.

[0020] Preferably, the minimum distance between a pair of support plates in a closed state is greater than the diameter of the winding core frame, and the maximum distance between the pair of support plates in an open state is greater than the diameter of the coil.

[0021] Based on the above technical solution, by setting up a lifting drive structure, the coil is first caught by the pallet of the travel elevator when falling, and then smoothly dropped onto the transfer vehicle, avoiding the inertial impact during direct falling and reducing damage to the transfer vehicle; the smooth falling process reduces the deformation or damage that may occur to the coil during the falling process, ensuring the quality of the coil.

[0022] The control method of the cooling line equipment in the high-speed wire finishing area comprises the following steps:

[0023] S100, after the coil is formed, it is stretched and stacked and transported forward along the conveyor line;

[0024] S200, during the process, the first air cooling assembly is passed, and after each centrifugal fan is turned on, the pressurized air is applied to the middle and side of the coil along the connecting pipe after being pressurized by the pressurizing nozzle;

[0025] S300, the axial flow fan of the second air cooling component is turned on, and the air duct thereof is sprayed obliquely along the conveying direction of the coil, and the combined application of the first air cooling component and the second air cooling component provides a multi-directional cooling effect for the coil;

[0026] S400, coiling into a fixed cylinder and winding along a conical head-shaped nose cone to form an annular columnar structure;

[0027] S500, a pair of supporting plates, a fixed cylinder and a winding core frame are axially corresponding, and the supporting plates are arranged in a closed state above the winding core frame;

[0028] S600, the temporary coil support arm is opened, the coil is axially sleeved on the coil core frame, and the bottom of the coil abuts against the support plate;

[0029] S700, the lifting drive structure is turned on, the lifting seat falls, and the coil is moved vertically downward along the direction of the coil core frame;

[0030] S800, when the lifting seat falls to the middle section of the coil core frame, the opening and closing drive component controls the pallet to open, and the coil falls to the top of the transfer vehicle;

[0031] S900, the transfer vehicle transfers the coil away, and a new transfer vehicle arrives at the coil receiving position and repeats the above operation. In summary, the present application includes the following beneficial technical effects:

[0032] 1. The present invention alternately arranges a first air cooling assembly and a second air cooling assembly on the conveying line of the coil, and the airflow passes through the conveying line to act on the coil, and each connecting pipe in the first air cooling assembly acts on the middle and side parts respectively. After being cooled by the first air cooling assembly, the temperature of the loose coil drops below the phase change point. The second air cooling assembly is used to solve the problem of transferring the heat of the core of the wire rod to the surface and take away this part of the heat;

[0033] 2. The present invention has a simple structure. The head of the nose cone is set in a cone shape, which is conducive to the unloading and coiling of the coil. The integrated temporary coil support arm realizes the precise control of the coil falling time after coiling;

[0034] 3. The present invention provides a lifting drive structure so that the coil first falls onto the support plate of the travel elevator when it falls, shortening the falling stroke and also avoiding the direct impact of the transfer vehicle by the inertia of the fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a cross-sectional view of the front view structure of the present invention;

[0036] Figure 2 The present invention Figure 1 A magnified view of the front end structure;

[0037] Figure 3 is a cross-sectional view of the first air-cooling assembly structure in the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of the conveyor line in the present invention from a top view. Figure 1 ;

[0039] Figure 5 This is a schematic diagram of the structure of the conveyor line in the present invention from a top view. Figure 2 ;

[0040] Figure 6 The present invention Figure 1 An enlarged view of the rear end structure;

[0041] Figure 7 It is a schematic diagram of the structure of the travel elevator and the winding drum in the present invention;

[0042] Figure 8 It is a side view structural schematic diagram of the travel lift in the present invention;

[0043] Fig. 9 It is a schematic diagram of the top view of the travel elevator in the present invention.

[0044] Description of reference numerals:

[0045] 1. Conveyor line, 2. First air cooling assembly, 3. Second air cooling assembly, 4. Bracket, 5. Travel elevator, 6. Reel collection drum, 7. Reel receiving car, 8. Bracket, 10. Coil,

[0046] 101. roller, 102. motor,

[0047] 201, centrifugal fan, 202, connecting pipe, 203, jet hood, 204, booster nozzle,

[0048] 501, lifting seat, 502, column, 503, counterweight, 504, support plate, 505, opening and closing drive member, 506, cable,

[0049] 601, fixed cylinder, 602, nose cone, 603, temporary roll support arm,

[0050] 701. Transfer vehicle. 702. Coil core rack. DETAILED DESCRIPTION

[0051] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0052] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0053] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0054] The following is combined with Figure 1-8 This application is further described in detail.

[0055] The embodiments of the present application disclose high-line finishing zone cooling line equipment and control method.

[0056] Example 1

[0057] Reference Figures 1 to 5 The present embodiment discloses a cooling line equipment for a high-line finishing zone, including a conveyor line 1 for conveying an extended and stacked coil 9, on which a first air-cooling assembly 2 and a second air-cooling assembly 3 acting on the coil 9 are sequentially arranged. In the present structure, the first air-cooling assembly 2 includes connecting pipes 202 arranged in parallel, one end of each connecting pipe 202 is connected to a centrifugal fan 201, and the other end is connected to a jet hood 203, and the jet hood 203 is arranged at the bottom of the conveyor line 1 with a gap, and a booster nozzle 204 is arranged in each connecting pipe 202, and the jet hood 203 outputs cooling effects of different wind directions to the coil 9 on the conveyor line 1.

[0058] The conveyor line 1 is erected in an inclined state through a bracket 4, and the end close to the collection drum 6 is a high end. The second air-cooling component 3 includes a plurality of axial flow fans arranged along the conveyor line 1, and the air duct of each axial flow fan is arranged in an inclined state relative to the length direction of the conveyor line 1. The conveyor line 1 is composed of a plurality of rollers 101, and each roller 101 is connected to the output end of the motor 102 through a chain transmission.

[0059] Example 2

[0060] Reference Figure 1 , Figures 6 to 8 , and based on the above embodiment, this embodiment further provides a high-line finishing area cooling line equipment, which also includes a collection drum 6 arranged at the end of the conveyor line 1, and a travel elevator 5 and a coil receiving vehicle 7 are correspondingly arranged below the collection drum 6. The collection drum 6 is used to organize the extended and stacked coils 9 into a vertical cylindrical structure, and the coil receiving vehicle 7 is used to transfer the coils 9. In this structure, the collection drum 6 includes a vertically conductive fixed cylinder 601, and a nose cone 602 is axially arranged on the inner side of the fixed cylinder 601, and a temporary coil supporting arm 603 for controlling the opening and falling of the coil 9 is arranged at the bottom of the fixed cylinder 601, and the head of the nose cone 602 is provided with a conical structure.

[0061] The coil receiving vehicle 7 includes a transfer vehicle 701 arranged on a track, and a winding core frame 702 for receiving the overall vertical annular coil 9 is provided on the top of the transfer vehicle 701. The travel elevator 5 includes a column 502 arranged on one side of the coil receiving vehicle 7, and a lifting seat 501 is slidably provided on the column 502, and a lifting drive structure composed of a counterweight block 503 and a cable 506 is provided between the two. A pair of support plates 504 and an opening and closing drive member 505 for controlling the opening and closing of the support plates 504 are provided on the lifting seat 501. In this structure, the minimum spacing between the pair of support plates 504 in the closed state is greater than the diameter of the winding core frame 702, and the maximum spacing between them in the open state is greater than the diameter of the coil 9.

[0062] Example 3

[0063] Reference Figures 1 to 8 Based on the above embodiment, this embodiment further provides a high wire finishing area cooling wire, including 5 pairs of photoelectric switches at the fixed cylinder 601, the photoelectric switches ignore the detection of falling and only detect the top of the accumulated wire coil. Starting from the bottom, they are marked as PED#1, PED#2 to PED#5, where positions #1, #2, #3, and #4 are the collection positions of the wire coil, PED#1 is the lowest position, and the photoelectric switch PED#1 is used to output a coil collection completion signal.

[0064] The fixed cylinder 601 is equipped with a cloth winder. If the height of the coil 10 reaches the photoelectric switch PED#4, the coil 10 is too close to the blade of the cloth winder. After the photoelectric switch PED#4 sends a signal, if the temporary coil support arm 603 is in a closed state, the coil collection continues. If the photoelectric switch PED#4 is blocked for more than 4 seconds, the cloth winder stops. If the temporary coil support arm 603 is in an open state, the support plate 504 gradually collects the coil and descends, increasing the falling speed. The cloth winder stops after the photoelectric switch PED#4 is blocked for more than 4 seconds. When the photoelectric switch PED#4 is not blocked, the cloth winder can be started directly. If the top photoelectric switch PED#5 is blocked for more than 6 seconds, an alarm is triggered and the conveyor line 1 is shut down.

[0065] After the coiling starts in the fixed drum 601, the coil 10 accumulates on the temporary coil supporting arm 603, and the initial coiling height position 0 in the fixed drum 601 is set between PED#1, #2, #3, and #4; after reaching the set coiling height, a signal is sent, the temporary coil supporting arm 603 is opened, and the coil 10 on the temporary coil supporting arm 603 falls onto the pallet 504.

[0066] The height control of the coil 10 in the fixed cylinder 601 is to maintain the continuous operation of the lifting coil, so that the rate of descent of the support plate 504 is the same as the rate of accumulation of the coil 10. The increase speed of the coil can be calculated based on the time and distance of the coil increase between PED#2, PED#3, and PED#4. It is used to set the opening of the temporary coil support arm and the descending speed of the lifting and lowering support plate to collect the coil. The descending speed of the support plate 504 is basically constant with the elevation of the top of the coil accumulated in the fixed cylinder 601 after the coil 10 falls. The purpose of controlling the height of the coil collection in this structure is to maximize the use of the coiler, and the coil collection should be as close to the lower end of the coiler as possible.

[0067] Example 4

[0068] Reference Figures 1 to 8 Based on the above embodiment, this embodiment also provides a method for controlling the cooling line in the high-line finishing area, including the following steps:

[0069] S100, after the coil 9 is formed, it is transported forward along the conveyor line 1 in an extended and stacked state;

[0070] S200, during the process, the first air cooling assembly 2 is passed, and after each centrifugal fan 201 is turned on, after being pressurized by the pressurizing nozzle 204, it acts on the middle and side of the coil 9 along the connecting pipe 202;

[0071] S300, the axial flow fan of the second air cooling assembly 3 is turned on, and its air duct is sprayed obliquely along the conveying direction of the coil 9. The combined application of the first air cooling assembly 2 and the second air cooling assembly 3 provides a multi-directional cooling effect on the coil 9;

[0072] S400, the coil 9 enters the fixed cylinder 601 and is coiled along the conical head-shaped nose cone 602 to form an annular columnar structure;

[0073] S500, a pair of support plates 504, a fixed cylinder 601 and a winding core frame 702 correspond to each other in the axial direction, and the support plates 504 are arranged in a closed state above the winding core frame 702;

[0074] S600, the temporary coil support arm 603 is opened, the coil 9 is axially sleeved on the coil core frame 702, and the bottom of the coil 9 abuts against the support plate 504;

[0075] S700, the lifting drive structure is turned on, the lifting seat 501 falls, and the coil 9 is moved vertically downward along the direction of the coil core frame 702;

[0076] S800, when the lifting seat 501 falls to the middle section of the winding core frame 702, the opening and closing driving member 505 controls the support plate 504 to open, and the coil 9 falls to the top of the transfer vehicle 701;

[0077] S900, the transfer vehicle 701 transfers the coil 9 away, and a new transfer vehicle 701 arrives at the coil receiving position and repeats the above operation.

[0078] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. High-speed wire finishing area cooling line equipment, characterized in that: include: A conveyor line (1) for conveying an extended and stacked coil (9), wherein the conveyor line (1) is provided with a first air cooling component (2) and a second air cooling component (3) acting on the coil (9) in sequence; A coil collection drum (6) is arranged at the end of the conveyor line (1), and a travel elevator (5) and a coil receiving vehicle (7) are arranged below the coil collection drum (6). The coil collection drum (6) is used to arrange the extended and stacked coils (9) into a vertical cylindrical structure, and the coil receiving vehicle (7) is used to transport the coils (9); The first air cooling component (2) comprises connecting tubes (202) arranged in parallel, one end of each connecting tube (202) is connected to a centrifugal fan (201), and the other end is connected to a jet hood (203), and the jet hood (203) is arranged at the bottom of the conveying line (1) with a gap, and a booster nozzle (204) is arranged in each connecting tube (202), and the jet hood (203) outputs different wind directions for cooling the coil (9) on the conveying line (1).

2. The high-speed wire finishing zone cooling wire equipment according to claim 1 is characterized in that: The conveyor line (1) is erected in an inclined manner through a bracket (4), and the end close to the winding drum (6) is a high end.

3. The high-speed wire finishing zone cooling wire equipment according to claim 2 is characterized in that: The second air cooling component (3) comprises a plurality of axial flow fans arranged along the conveying line (1), and the air duct of each axial flow fan is arranged in an inclined shape relative to the length direction of the conveying line (1).

4. The high-speed wire finishing zone cooling wire equipment according to claim 3 is characterized in that: The conveyor line (1) is composed of a plurality of rollers (101), and each of the rollers (101) is connected to the output end of a motor (102) through a chain transmission.

5. The high-speed wire finishing zone cooling wire equipment according to claim 4 is characterized in that: The roll collecting drum (6) comprises a vertically conductive fixed drum (601), a nose cone (602) is axially arranged inside the fixed drum (601), and a temporary roll supporting arm (603) for controlling the opening and falling of the coil (9) is arranged at the bottom of the fixed drum (601).

6. The high-speed wire finishing zone cooling wire equipment according to claim 5, characterized in that: The head of the nose cone (602) is provided with a conical structure.

7. The high-speed wire finishing zone cooling wire equipment according to claim 6 is characterized in that: The coil receiving vehicle (7) comprises a transfer vehicle (701) arranged on a track, and a coil core frame (702) for receiving the coil (9) which is in a vertical ring shape as a whole is provided on the top of the transfer vehicle (701).

8. The high-speed wire finishing zone cooling wire equipment according to claim 7 is characterized in that: The travel elevator (5) comprises a column (502) arranged on one side of the coil receiving vehicle (7), a lifting seat (501) is slidably arranged on the column (502), and a lifting drive structure composed of a counterweight block (503) and a cable (506) is arranged between the two, and a pair of supporting plates (504) and an opening and closing driving member (505) for controlling the opening and closing of the supporting plates (504) are arranged on the lifting seat (501).

9. The high-speed wire finishing zone cooling wire equipment according to claim 8, characterized in that: The minimum distance between the pair of support plates (504) in the closed state is greater than the diameter of the winding core frame (702), and the maximum distance between the pair of support plates (504) in the open state is greater than the diameter of the coil (9).

10. A control method for a cooling wire device in a high-speed wire finishing area, which uses the cooling wire device in a high-speed wire finishing area as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S100, in an initial state, the first air cooling component (2) and the second air cooling component (3) are not turned on; S200, when receiving a coil incoming signal, the coil core frame (702) of the coil receiving vehicle (7) rises to wait for coil receiving, and the first air cooling component (2) and the second air cooling component (3) are turned on. S300, after being formed, the coil (9) is conveyed forward along the conveyor line (1) in an extended and stacked state; S400, during which the first air-cooling component (2) passes through, after each of the centrifugal fans (201) is turned on, the air is pressurized by the boosting nozzle (204) and then acts on the middle and side parts of the coil (9) along the connecting pipe (202); S500, the axial flow fan of the second air cooling component (3) is turned on, and the air duct thereof is sprayed obliquely along the conveying direction of the coil (9), and the combined application of the first air cooling component (2) and the second air cooling component (3) provides a multi-directional cooling effect for the coil (9); S600, the coil (9) enters the fixed cylinder (601), and is coiled along the conical nose cone (602) to form an annular columnar structure; S700, a pair of the support plates (504), the fixed cylinder (601) and the winding core frame (702) are axially corresponding, and the support plates (504) are arranged in a closed state above the winding core frame (702); S800, the temporary coil support arm (603) is opened, the coil (9) is axially sleeved on the coil core frame (702), and the bottom of the coil (9) abuts against the support plate (504); S900, the lifting drive structure is turned on, the lifting seat (501) falls, and the coil (9) is moved vertically downward along the direction of the coil core frame (702); S1000, when the lifting seat (501) falls to the middle section of the winding core frame (702), the opening and closing driving member (505) controls the support plate (504) to open, and the coil (9) falls to the top of the transfer vehicle (701); S1100, the transfer vehicle (701) transfers the coil (9) away, and a new transfer vehicle (701) arrives at the coil receiving position to repeat the above operation.

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