An EVA heat-insulating coil rewinding device

Abstract

The present invention relates to the technical field of winding equipment, and discloses an EVA thermal insulation coil winding device, including a telescopic linkage structure, a gas reserve cavity, a rotating driven structure, two rotating linkage structures, and two electromagnetic structures. Inside, there is an iron core that can generate suction force on the annular permanent magnet after passing a directional current, so that the top of the annular permanent magnet closely adheres to its bottom surface. This EVA thermal insulation coil winding device can perform the sorting work of self-rolling the coil while winding the coil, thereby ensuring the flatness of the coil during winding and reducing the difficulty of winding the coil. At the same time, the device decomposes the kinetic energy from the same driving motor by different meshing methods between gears, featuring high structural utilization rate and high kinetic energy utilization efficiency. In addition, it can independently control the amount of the coil after winding and has a certain coil winding amount control ability.

Description

Technical Field

[0001] The present invention relates to the technical field of winding equipment, and specifically relates to an EVA insulation coil winding device. Background Art

[0002] The EVA film extruded from the die head of the extruder has a high temperature. It needs to be conveyed over a long distance through multiple groups of conveyor rollers. During the conveying process, the EVA film is cooled and shaped, and finally wound.

[0003] For this reason, a winding device needs to be used. For example, a coil winding device disclosed in Chinese Patent Publication No. CN107745987B mainly includes a frame, a motor, a winding mechanism for winding the coil, and a clamping mechanism for removing the coil. The winding mechanism includes an airbag and a plurality of parallel support frames; the airbag includes a base layer, an inflation airbag, and a plurality of bulging airbags. The shape of the base layer is a cylinder. The inflation airbag is located inside the base layer, and an inflation port is provided on the inflation airbag. The bulging airbags are located outside the base layer, and through holes for communicating the inflation airbag and the bulging airbags are provided on the base layer; a support frame is provided between every two adjacent bulging airbags, and the support frame is connected to the base layer. A coupling for driving the support frame to rotate is connected to the output shaft of the motor, and the coupling is slidably connected to the support frame. This technical solution adopts a telescopic reel, which not only is applicable to coils of different width dimensions, can expand the application range of the winding device, but also is convenient for removing the coil.

[0004] It is not difficult to find through the above description that the above coil winding device can only wind the EVA insulation coil in a flat state, that is, a state without self-winding phenomenon. Once the EVA insulation coil has a self-winding phenomenon, it will cause an angular folding phenomenon during winding and cannot guarantee the flatness of the finished product. Due to unstable factors, in special situations, it is necessary to wind the EVA insulation coil with a self-winding phenomenon. When the above device deals with coils in this state, it is necessary to manually adjust the angle of the EVA insulation coil with a self-winding phenomenon. At this time, the labor intensity of the staff will be seriously increased. Therefore, its scope of use is greatly limited. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides an EVA insulation coil winding device, which can wind the coil while sorting out the self-rolling of the coil, so as to ensure the flatness during coil winding, reduce the difficulty of coil winding. At the same time, the device decomposes the kinetic energy from the same driving motor by different meshing methods between gears, and has the characteristics of high structural utilization rate and high kinetic energy utilization efficiency. In addition, it can independently control the amount of the coil after winding and has a certain coil winding amount control ability, thus solving the above technical problems.

[0007] (2) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solution: an EVA heat preservation coil rewinding device, including a suspension-mounted fixed substrate, a driving motor inversely mounted on the upper end surface of the fixed substrate, a cylindrical limiting body integrally provided at the bottom of the fixed substrate and having a component activity cavity inside, a limiting ring structure integrally provided at the bottom end port of the cylindrical limiting body, and two rewinding wheels with a hexagonal inner groove at the rotating end for winding the EVA heat preservation coil. The device further includes a telescopic linkage structure that penetrates the central structure of the fixed substrate and rotates with the rotor of the driving motor, and inside which there are an upper bevel gear and a lower bevel gear that can change the distance under the strength difference between low-pressure gas and the main spiral spring and can rotate synchronously; a gas reserve cavity provided inside the fixed substrate and communicating with the ventilation holes of the telescopic linkage structure; a rotating driven structure located in the middle of the component activity cavity and with its bottom structure extending below the limiting ring structure, and inside which there are two side bevel gears that generate the overall rotation of the structure around the axis of the rotor when the tooth structures are simultaneously meshed with the corresponding upper bevel gear and lower bevel gear and generate self-rotation when the tooth structures are only meshed with the corresponding structure of the upper bevel gear, and a ring permanent magnet is embedded at its top; two rotating linkage structures horizontally and rotatably mounted on two opposite ends of the rotating driven structure through bearings and rotating with the side bevel gears through belts, and inside which there are auxiliary hexagonal telescopic rods that lock the rewinding wheels placed between the two rotating linkage structures under the elastic action of the auxiliary spiral spring; and two electromagnetic structures fixedly installed at the bottom of the fixed substrate and inside the component activity cavity, and inside which there is an iron core that can generate a suction force on the ring permanent magnet after passing a directional current, so that the top of the ring permanent magnet closely adheres to its bottom surface.

[0009] Preferably, the telescopic linkage structure includes a main rotating shaft that penetrates the fixed substrate, and the main rotating shaft is installed in the corresponding structure of the fixed substrate through a mechanical seal structure at the penetrating part. The top center of the main rotating shaft is provided with a rotor fixing groove for fixedly installing the rotor. The inside of the main rotating shaft is provided with a longitudinal expansion cavity, the top of the longitudinal expansion cavity is communicated with the rotating driven structure through a ventilation hole, the bottom end of the main rotating shaft is fixedly installed with an upper bevel gear that rotates with it, a piston body that can move along its axial direction is placed inside the longitudinal expansion cavity, a main spiral spring that generates a downward pressure on the piston body is placed on the upper end surface of the piston body, the bottom end of the piston body is fixedly installed with a main hexagonal telescopic rod that penetrates the central structures of the main rotating shaft and the upper bevel gear, and the bottom end of the main hexagonal telescopic rod is fixedly installed with a lower bevel gear located directly below the upper bevel gear.

[0010] Preferably, the mechanical seal structure is composed of elements such as a stationary ring, a rotating ring, an elastic element spring seat, a set screw, a rotating ring auxiliary seal ring, and a stationary ring auxiliary seal ring.

[0011] Preferably, the cross-section of the through-hole at the end of the piston body and the upper bevel gear where the main hexagonal telescopic rod penetrates is the same as the structural shape of the cross-section of the main hexagonal telescopic rod, and both are hexagonal structures.

[0012] Preferably, the rotary driven structure includes an annular body whose upper end face can abut against the bottom surface of the iron core. An annular permanent magnet is embedded in the upper end face of the annular body. Two longitudinally vertical plates with an integrated structure and symmetric design are provided on the bottom annular surface of the annular body. A horizontal limiting plate structure with an integrated structure and capable of abutting against the upper surface of the limiting ring structure is provided in the middle of the opposite side surfaces of the two longitudinally vertical plates. A cavity structure is provided inside the longitudinally vertical plates. Two first horizontal rotating shafts are installed at the top regions of the opposite side surfaces of the two longitudinally vertical plates through bearings. Side bevel gears that can mesh with the upper bevel gear and the lower bevel gear are respectively installed at the opposite ends of the two first horizontal rotating shafts. Main belt pulleys are respectively installed at one ends of the two first horizontal rotating shafts located inside their respective cavity structures. Bearing installation grooves penetrating the plate body structures transversely are respectively provided at the bottom regions of the opposite end faces of the two longitudinally vertical plates.

[0013] Preferably, the movable distance between the horizontal limiting plate structure between the limiting ring structure and the iron core is less than the effective magnetic pole range between the iron core and the annular permanent magnet.

[0014] Preferably, the movable distance between the horizontal limiting plate structure between the limiting ring structure and the iron core is less than the distance between the lower bevel gear and the side bevel gear when the lower bevel gear is at the lowest point.

[0015] Preferably, the rotary linkage structure includes a transverse rotating shaft rotatably installed inside the bearing installation groove through a bearing and penetrating the corresponding cavity structure. An auxiliary belt pulley with an integrated structure and linked to the main belt pulley by a belt is provided in the middle of the circumferential surface of the transverse rotating shaft. A transverse telescopic cavity is provided at the center of the transverse rotating shaft. A movable block capable of moving axially along it is placed inside the transverse telescopic cavity. A secondary hexagonal telescopic rod that penetrates the corresponding structure of the transverse rotating shaft and can be inserted into the hexagonal inner groove on the end face of the take-up wheel is installed on the end face of the movable block facing the inside. A force application rod that penetrates the corresponding structure of the transverse rotating shaft and has a force application plate installed at its end is installed on the other end face of the movable block. A secondary spiral spring that generates a pressure on the movable block towards the take-up wheel direction is sleeved on the rod body of the force application rod.

[0016] Preferably, the structural shape of the longitudinal cross-section of the movable block is the same as the structural shape of the longitudinal cross-section of the transverse telescopic cavity, and both are hexagonal structures.

[0017] Preferably, the electromagnetic device structure includes an electromagnetic installation housing fixedly installed at the bottom of a fixed substrate and located inside a component activity cavity. A longitudinal iron core is fixedly installed at the center of the electromagnetic installation housing, and a coil wound by copper wire in a single rotation direction is sleeved on the circumferential surface of the iron core. The wiring end of the coil extends outside the electromagnetic installation housing.

[0018] Compared with the prior art, the present invention provides an EVA heat-insulating coil winding device, which has the following beneficial effects:

[0019] The EVA heat-insulating coil winding device can carry out the sorting work of self-rolling the coil while winding the coil, so as to ensure the flatness of the coil during winding, reduce the difficulty of winding the coil. At the same time, the device decomposes the kinetic energy from the same driving motor by different meshing methods between gears, and has the characteristics of high structural utilization rate and high kinetic energy utilization efficiency. In addition, it can autonomously control the amount of the coil after winding and has a certain coil winding amount control ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a full-sectional structure diagram of the present invention;

[0021] Figure 2 is a three-dimensional view of the telescopic linkage structure in the present invention;

[0022] Figure 3 is a three-dimensional sectional view of the telescopic linkage structure in the present invention;

[0023] Figure 4 is a three-dimensional view of the rotary driven structure in the present invention;

[0024] Figure 5 is a three-dimensional sectional view of the rotary driven structure in the present invention;

[0025] Figure 6 is a three-dimensional view of the rotary linkage structure in the present invention;

[0026] Figure 7 is a three-dimensional sectional view of the rotary linkage structure in the present invention;

[0027] Figure 8 is a full-sectional structure diagram of the electromagnetic device structure in the present invention.

[0028] Wherein: 1. Fixed substrate; 2. Driving motor; 3. Rotor; 4. Cylindrical limiting body; 5. Limiting ring structure; 6. Telescopic linkage structure; 61. Main rotating shaft; 62. Rotor fixing groove; 63. Longitudinal telescopic cavity; 64. Vent hole; 65. Mechanical seal structure; 66. Piston body; 67. Upper bevel gear; 68. Lower bevel gear; 69. Main hexagonal telescopic rod; 610. Main helical spring; 7. Rotating driven structure; 71. Ring body; 72. Ring permanent magnet; 73. Longitudinal vertical plate; 74. Horizontal limiting plate structure; 75. Cavity structure; 76. First horizontal rotating shaft; 77. Lateral bevel gear; 78. Main pulley; 79. Bearing mounting groove; 8. Rotary linkage structure; 81. Transverse rotating shaft; 82. Auxiliary pulley; 83. Transverse telescopic cavity; 84. Movable block; 85. Force applying rod; 86. Auxiliary hexagonal telescopic rod; 87. Auxiliary helical spring; 88. Force applying plate; 9. Take-up reel; 10. Belt; 11. Electromagnet structure; 111. Electromagnetic mounting housing; 112. Iron core; 113. Coil; 114. Copper wire; 115. Wiring terminal; 12. Gas reserve cavity; 13. Component movable cavity. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1 , an EVA heat-insulating coil take-up device, including a suspension-mounted fixed substrate 1, a driving motor 2 inverted and installed on the upper end surface of the fixed substrate 1, a cylindrical limiting body 4 integrally arranged at the bottom of the fixed substrate 1 and internally provided with a component movable cavity 13, a limiting ring structure 5 integrally arranged at the bottom end port of the cylindrical limiting body 4, and two take-up reels 9 with a hexagonal inner groove at the rotating end for taking up the EVA heat-insulating coil. The driving motor 2 is mainly used as a driving source for the power generated during rotation, so that the power can not only generate the take-up movement when tightening the coil, but also realize the angle adjustment function of the take-up reel 9 during the take-up process, thereby realizing multi-purpose use of one machine, effectively improving the effective utilization rate of kinetic energy. Moreover, when the device is working, it is installed on a high-position space through the fixed substrate 1, and there is a certain distance between the take-up reel 9 and the ground. This distance can make the coiled structure in a fishing state during the take-up process. In the fishing state, due to the gravity of the coiled structure itself, it can make its own angle-adjustable state, so that it can be taken up in a flat state.

[0031] In order to realize the selective function of the motion state of the take-up reel 9, please refer toFigures 1-3 , it is necessary to set up a telescopic linkage structure 6 and a gas reserve chamber 12. Among them, the gas reserve chamber 12 is arranged inside the fixed substrate 1 and communicated with the ventilation hole 64 of the telescopic linkage structure 6. The telescopic linkage structure 6 penetrates the central structure of the fixed substrate 1 and rotates with the rotor 3 of the driving motor 2. Inside it, there are an upper bevel gear 67 and a lower bevel gear 68 that can change the distance under the intensity difference of low-pressure gas and the main spiral spring 610 and can rotate synchronously. By using an air extraction device, the gas inside the gas reserve chamber 12 can be discharged outward to form a low-pressure area. This low-pressure area can make the lower bevel gear 68 move upward, so as to cooperate with the upper bevel gear 67 to form an upper and lower meshing clamping state on the two side bevel gears 77. Since the rotation directions of the upper bevel gear 67 and the lower bevel gear 68 are the same, the two side bevel gears 77 will be stuck between the upper bevel gear 67 and the lower bevel gear 68 and cannot generate self-rotation. At this time, the take-up wheel 9 will suspend the take-up work of the coil and rotate around the axis of the rotor 3. This rotation can adjust the winding occurring in the radial direction, so that the coil can be taken up by the take-up wheel 9 in a flat state, thus realizing the adjustment of the take-up angle.

[0032] For the specific structure of the telescopic linkage structure 6, please refer to Figures 1-4, including a main rotating shaft 61 passing through and fixing the substrate 1. In order to enable the main rotating shaft 61 to have a rotating function while preventing gas leakage, it is preferable that the mechanical seal structure 65 is composed of elements such as a stationary ring, a rotating ring, an elastic element spring seat, a set screw, a rotating ring auxiliary sealing ring, and a stationary ring auxiliary sealing ring. The main rotating shaft 61 is installed in the corresponding structure of the fixed substrate 1 through the mechanical seal structure 65 at the penetrating part. A rotor fixing groove 62 for fixedly installing the rotor 3 is provided at the center of the top end of the main rotating shaft 61. A longitudinal expansion cavity 63 is provided inside the main rotating shaft 61. The top end of the longitudinal expansion cavity 63 is communicated with the rotating driven structure 7 through a ventilation hole 64. A lower conical gear 68 located directly below the upper conical gear 67 is fixedly installed at the bottom end of the main rotating shaft 61. In the normal state, due to the downward elastic force of the main spiral spring 610 and the gravity of its own structure, the lower conical gear 68 will be away from the side conical gear 77 and will not mesh with the side conical gear 77. At this time, the side conical gear 77 will only mesh with the upper conical gear 67. The rotation of the upper conical gear 67 will drive the side conical gear 77 to rotate, thereby realizing the winding effect of the winding wheel 9 on the coil material.

[0033] In order to achieve the transmission of rotational force, please refer to Figures 1-4, it is necessary to set the rotating driven structure 7, which is located inside the middle part of the component moving cavity 13 and the bottom structure extends to the structure below the limit ring structure 5. Inside it, there are two side-positioned bevel gears 77 that generate the rotation of the overall structure around the axis of the rotor 3 when the tooth structure is simultaneously meshed with the upper bevel gear 67 and the lower bevel gear 68, and generate self-rotation when the tooth structure is only meshed with the corresponding structure of the upper bevel gear 67. And a ring-shaped permanent magnet 72 is embedded at its top. From the above description, it can be known that when the side-positioned bevel gear 77 is subjected to a unidirectional force, that is, when meshed with the upper bevel gear 67, a self-rotation phenomenon can be generated, and this self-rotation phenomenon is applied to the take-up reel 9 to realize the winding work of the coil material. When the side-positioned bevel gear 77 is subjected to symmetric bidirectional forces and the forces in both directions are in the same rotation direction, the side-positioned bevel gear 77 will be stuck and generate a circular motion in the direction of the axis of the rotor 3. This circular motion can enable the take-up reel 9 to adjust the angle of the coil material. By controlling the rotation direction of the driving motor 2, the spiral winding direction of the coil material can be reversely adjusted, so as to ensure that the coil material can be wound in a flat state.

[0034] For the specific structure of the rotating driven structure 7, please refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 8, including an annular body 71 whose upper end face can abut against the bottom surface of the iron core 112. An annular permanent magnet 72 is embedded in the upper end face of the annular body 71. In order to enable the magnetic field generated by the iron core 112 to form a suction force on the annular permanent magnet 72, thus facilitating the reset work of the annular body 71, it is necessary to make the movable distance between the horizontal limiting plate structure 74 between the limiting ring structure 5 and the iron core 112 less than the effective magnetic pole range between the iron core 112 and the annular permanent magnet 72. The bottom annular surface of the annular body 71 is provided with two integrally formed and symmetrically designed longitudinal vertical plates 73. In the middle of the opposite sides of the two longitudinal vertical plates 73, there is an integrally formed horizontal limiting plate structure 74 that can abut against the upper surface of the limiting ring structure 5. A cavity structure 75 is provided inside the longitudinal vertical plates 73. At the top regions of the opposite sides of the two longitudinal vertical plates 73, two first horizontal rotating shafts 76 are installed through bearings. At the opposite ends of the two first horizontal rotating shafts 76, side-position bevel gears 77 that can mesh with the upper bevel gear 67 and the lower bevel gear 68 are installed respectively. In order to ensure that when the annular body 71 is separated, it will no longer form a working linkage state with the lower bevel gear 68, thus ensuring the stable progress of the work, it is necessary to make the movable distance between the horizontal limiting plate structure 74 between the limiting ring structure 5 and the iron core 112 less than the distance between the lower bevel gear 68 and the side-position bevel gear 77 when the lower bevel gear 68 is at the lowest point. At one end of each of the two first horizontal rotating shafts 76 located inside their respective cavity structures 75, main belt pulleys 78 are installed respectively. At the bottom regions of the opposite end faces of the two longitudinal vertical plates 73, bearing installation grooves 79 that penetrate the plate body structure transversely are provided respectively. The setting of the annular permanent magnet 72 enables it to have the function of being adsorbed, and the longitudinal vertical plates 73 can ensure that after the annular body 71 is separated, it will not fall but be inside the component activity cavity 13, thus facilitating its subsequent reset work.

[0035] In order to drive the winding wheel 9 to perform winding work in the rotating state of the rotor 3, please refer to Figure 1 and Figure 6 , it is necessary to set two rotary linkage structures 8. They are horizontally and rotatably installed through bearings at the two opposite ends of the rotary driven structure 7 and rotate with the side-position bevel gear 77 through the belt 10. Inside them, there is a secondary hexagonal telescopic rod 86 that locks the winding wheel 9 placed between the two rotary linkage structures 8 under the elastic action of the secondary spiral spring 87. When the side-position bevel gear 77 rotates, it will drive the winding wheel 9 to rotate through the belt 10, thus realizing the winding work of the winding wheel 9 on the coil material.

[0036] Regarding the specific structure of the rotary linkage structure 8, please refer to Figure 1 , Figure 5 , Figure 6 and Figure 7, including a transverse rotating shaft 81 which is rotatably mounted in the bearing mounting groove 79 through a bearing and passes through the corresponding cavity structure 75, a secondary pulley 82 with an integrated structure and linked to the main pulley 78 through a belt 10 is arranged in the middle of the circumferential surface of the transverse rotating shaft 81, a transverse telescopic cavity 83 is arranged at the center of the transverse rotating shaft 81, and a movable block 84 which can move axially is arranged inside the transverse telescopic cavity 83. In order to realize the necessary rotation transmission function, it is necessary to make the structural shape of the longitudinal section of the movable block 84 consistent with the structural shape of the longitudinal section of the transverse telescopic cavity 83, both of which are hexagonal structures, and the movable block A secondary hexagonal telescopic rod 86 is installed on the end face facing inward, which passes through the corresponding structure of the horizontal rotating shaft 81 and can be inserted into the hexagonal inner groove of the end face of the winding wheel 9. A force rod 85 is installed on the other end face of the movable block 84, which passes through the corresponding structure of the horizontal rotating shaft 81 and has a force plate 88 installed on the end. A secondary coil spring 87 is placed on the rod body of the force rod 85, which produces pressure on the movable block 84 toward the winding wheel 9. When the force plate 88 is pulled outward, the secondary coil spring 87 can be compressed, and the secondary hexagonal telescopic rod 86 can be pulled out of the corresponding insertion structure of the winding wheel 9, thereby realizing the replacement of the winding wheel 9.

[0037] To achieve quantitative winding function, please refer to Figure 1 , Figure 4 and Figure 8 , it is necessary to set up two electromagnetic structures 11, which are fixedly installed at the bottom of the fixed base plate 1 and located inside the component active cavity 13, and are provided with an iron core 112 inside, which can generate suction to the annular permanent magnet 72 after the directional current is passed, so that the top of the annular permanent magnet 72 is close to its bottom surface. When the iron core 112 generates a magnetic field, the magnetic pole at the bottom of the iron core 112 is controlled so that the magnetic pole is opposite to the top magnetic pole of the annular permanent magnet 72, and the suction force F1 between the two is controlled, and other components generate a downward pulling force F2 on the annular permanent magnet 72 due to gravity. As the coil is wound, the force of F2 will increase accordingly. When the force of F2 increases to be consistent with F1, the annular body 71 will break away from the adsorption effect of the iron core 112 and fall downward, so that the winding wheel 9 can no longer perform any work on the coil, thereby realizing quantitative coil winding.

[0038] For the specific structure of the electromagnetic structure 11, please refer to Figure 8, including an electromagnetic mounting housing 111 fixedly installed at the bottom of the fixed substrate 1 and located inside the component moving cavity 13. A longitudinal iron core 112 is fixedly installed at the center of the electromagnetic mounting housing 111. A coil 113 wound by a copper wire 114 in a rotating direction is sleeved on the circumferential surface of the iron core 112. The terminal 115 of the coil 113 extends outside the electromagnetic mounting housing 111. By inputting current into the terminal 115 and controlling the direction of the current flow, the magnetic pole at the bottom end of the iron core 112 can be controlled to keep the magnetic pole opposite to the top magnetic pole of the annular permanent magnet 72, so as to realize the adsorption function between the two, so that the side bevel gear 77 can be kept in the working position state. Then, by controlling the magnitude of the current, the magnitude of the suction force F1 can be controlled. It is necessary to make the suction force F1 greater than the pulling force F2 when the coil is not wound, and at the same time be consistent with the sum of the rated coil gravity F3 and the pulling force F2. In addition, when the suction force F1 generates relative rotation with the bottom of the electromagnetic mounting housing 111, a frictional force F4 will be generated. The frictional force F4 needs to be less than the maximum torque strength of the driving motor 2 at the rated power, so as to ensure the normal progress of the work.

[0039] During use, the following steps are carried out: S1: Install the fixed substrate 1 in a high position space, and keep a certain distance between the winding wheel 9 and the ground. Then fix the winding end of the EVA insulation coil in the winding groove of the winding wheel 9; S2: Start the driving motor 2 to wind the coil by rotating the winding wheel 9. When the coil has a self-winding phenomenon in the length direction during the winding process, start the air extraction pump to extract the gas inside the gas reserve cavity 12 to form a low-pressure state, and then control the driving motor 2 and control the winding wheel 9 to rotate in the direction opposite to the self-winding direction of the coil in the length direction; S3: When the self-winding of the coil disappears, turn off the air extraction pump to make the component reset under gravity, and then drive the driving motor 2 again to wind the coil. When the winding wheel 9 generates a downward falling state, it means that the winding work is completed, and a new winding wheel 9 can be replaced to carry out the winding work again.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An EVA thermal insulation coil winding device, comprising a suspension-mounted fixed substrate (1), a driving motor (2) inversely mounted on the upper end face of the fixed substrate (1), a cylindrical limiting body (4) integrally arranged at the bottom of the fixed substrate (1) and having a component activity cavity (13) inside, a limiting ring structure (5) integrally arranged at the bottom end port of the cylindrical limiting body (4), and two winding wheels (9) with hexagonal inner grooves at the rotating ends for winding the EVA thermal insulation coil, characterized in that: Further included is a telescopic linkage structure (6) that penetrates the central structure of the fixed substrate (1) and rotates with the rotor (3) of the drive motor (2). Inside it, there are an upper bevel gear (67) and a lower bevel gear (68) that can change the distance under the intensity difference between the low-pressure gas and the main spiral spring (610) and can rotate synchronously; a gas reserve chamber (12) that is arranged inside the fixed substrate (1) and is communicated with the ventilation hole (64) of the telescopic linkage structure (6); and a rotary driven structure (7) that is located in the middle inside the component activity chamber (13) and the bottom structure extends to the lower structure of the limit ring structure (5). Inside it, there are two side bevel gears (77) that generate the overall structure to rotate around the axis line of the rotor (3) when the tooth structures are simultaneously meshed with the upper bevel gear (67) and the lower bevel gear (68), and generate self-rotation when the tooth structure is only meshed with the corresponding structure of the upper bevel gear (67). And a ring permanent magnet (72) is embedded at its top. When the side bevel gear (77) rotates, it will drive the winding wheel (9) to rotate through the belt (10).

2. The EVA thermal insulation coil rewinding device according to claim 1, characterized in that: The telescopic linkage structure (6) includes a main rotating shaft (61) that penetrates the fixed substrate (1). And the main rotating shaft (61) is installed in the corresponding structure of the fixed substrate (1) through a mechanical seal structure (65) at the penetrating part. A rotor fixing groove (62) for fixedly installing the rotor (3) is arranged at the center of the top end of the main rotating shaft (61). A longitudinal expansion chamber (63) is arranged inside the main rotating shaft (61). The top end of the longitudinal expansion chamber (63) is communicated with the rotary driven structure (7) through a ventilation hole (64). The upper bevel gear (67) that rotates with it is fixedly installed at the bottom end of the main rotating shaft (61). A piston body (66) that can move along its axial direction is placed inside the longitudinal expansion chamber (63). A main spiral spring (610) that generates a downward pressure on it is placed on the upper end surface of the piston body (66). A main hexagonal telescopic rod (69) that penetrates the corresponding central structures of the main rotating shaft (61) and the upper bevel gear (67) is fixedly installed at the bottom end of the piston body (66). The lower bevel gear (68) located directly below the upper bevel gear (67) is fixedly installed at the bottom end of the main hexagonal telescopic rod (69).

3. The EVA thermal insulation coil rewinding device according to claim 2, characterized in that: The cross-section of the through hole at the penetrated part of the piston body (66) and the upper bevel gear (67) and the cross-section of the main hexagonal telescopic rod (69) have the same structural shape, both being hexagonal structures.

4. An EVA thermal insulation coil rewinding device according to claim 3, characterized in that: The rotation driven structure (7) includes an annular body (71) whose upper end face can abut against the bottom surface of the iron core (112). An annular permanent magnet (72) is embedded in the upper end face of the annular body (71). Two longitudinally vertical plates (73) with an integral structure and symmetrical design are arranged on the bottom annular surface of the annular body (71). A horizontal limiting plate structure (74) with an integral structure and capable of abutting against the upper surface of the limiting ring structure (5) is arranged in the middle of the opposite sides of the two longitudinally vertical plates (73). A cavity structure (75) is arranged inside the longitudinally vertical plate (73). Two first horizontal rotating shafts (76) are installed at the top regions of the opposite sides of the two longitudinally vertical plates (73) through bearings. Side-mounted bevel gears (77) capable of meshing with the upper bevel gear (67) and the lower bevel gear (68) are respectively installed at the opposite ends of the two first horizontal rotating shafts (76). Main belt pulleys (78) are respectively installed at one ends of the two first horizontal rotating shafts (76) located inside their respective cavity structures (75). Bearing mounting grooves (79) penetrating the plate structures transversely are respectively arranged at the bottom regions of the opposite end faces of the two longitudinally vertical plates (73).

5. The EVA thermal insulation coiled material winding device according to claim 4, characterized in that: The movable distance between the horizontal limiting plate structure (74) between the limiting ring structure (5) and the iron core (112) is less than the effective magnetic pole range between the iron core (112) and the annular permanent magnet (72). The movable distance between the horizontal limiting plate structure (74) between the limiting ring structure (5) and the iron core (112) is less than the distance between the lower bevel gear (68) and the side-mounted bevel gear (77) when the lower bevel gear (68) is at the lowest point.

6. An EVA thermal insulation coil rewinding device according to any one of claims 1-5, characterized in that: It further includes two rotary linkage structures (8). The two rotary linkage structures (8) are horizontally and rotatably installed at the two opposite ends of the rotation driven structure (7) through bearings and rotate with the side-mounted bevel gear (77) through a belt (10). A sub-hexagonal telescopic rod (86) for locking the take-up wheel (9) clamped between the two rotary linkage structures (8) under the elastic action of a sub-spiral spring (87) is arranged inside.

7. The EVA thermal insulation coil rewinding device according to claim 6, characterized in that: The rotary linkage structure (8) includes a transverse rotating shaft (81) rotatably installed inside the bearing mounting groove (79) through a bearing and penetrating the corresponding cavity structure (75). A sub-belt pulley (82) with an integral structure and linked with the main belt pulley (78) through a belt (10) is arranged in the middle of the circumferential surface of the transverse rotating shaft (81). A transverse telescopic cavity (83) is arranged at the center of the transverse rotating shaft (81). A movable block (84) capable of moving axially along it is placed inside the transverse telescopic cavity (83). A sub-hexagonal telescopic rod (86) penetrating the corresponding structure of the transverse rotating shaft (81) and capable of being inserted into the inner hexagonal groove of the end face of the take-up wheel (9) is installed at the end face of the movable block (84) facing the inside. A force-applying rod (85) penetrating the corresponding structure of the transverse rotating shaft (81) and with a force-applying plate (88) installed at its end is installed at the other end face of the movable block (84). A sub-spiral spring (87) that generates a pressure on the movable block (84) in the direction towards the take-up wheel (9) is sleeved on the rod body of the force-applying rod (85).

8. An EVA thermal insulation coil rewinding device according to claim 7, characterized in that: The structural shape of the longitudinal section of the movable block (84) is the same as that of the longitudinal section of the transverse expansion cavity (83), and both are hexagonal structures.

9. The EVA thermal insulation coil rewinding device according to claim 8, characterized in that: It further includes two electromagnetic structures (11). The electromagnetic structure (11) includes an electromagnetic mounting housing (111) fixedly installed at the bottom of the fixed substrate (1) and located inside the component movable cavity (13). A longitudinal iron core (112) is fixedly installed at the center of the electromagnetic mounting housing (111). A coil (113) wound by a copper wire (114) in a rotating direction is sleeved on the circumferential surface of the iron core (112). The connection terminal (115) of the coil (113) extends outside the electromagnetic mounting housing (111).

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