Winding device capable of electrically winding and unwinding blocking cloth

Abstract

The utility model discloses an electric take-up and pay-off crosspiece cloth winding device, and belongs to the technical field of crosspiece cloth winding. The device comprises a platform, a motor is installed at the top end of the platform, a winding drum is rotatably installed on the side wall of the platform, blocking cloth is wound on the side wall of the winding drum, a fixing assembly is fixedly installed on the side wall of the platform, sweeping assemblies are symmetrically installed in the fixing assembly, and a protection assembly is installed on the side wall of the fixing assembly. Through the arrangement of the sweeping assembly, in the subsequent winding process, rubber wheels are rubbed with the blocking cloth to drive the rubber wheels to rotate, so that a reciprocating lead screw rotates synchronously, the reciprocating lead screw rotates continuously to drive a sliding block to reciprocate along the interior of a sliding groove, and therefore a cleaning plate cleans the surface of the blocking cloth continuously; and the phenomenon that after rolling, residual materials are clamped in the middle, the blocking cloth is damaged, and the service life of the blocking cloth is affected is avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of over-the-girder fabric winding technology, specifically, it relates to an electric over-the-girder fabric winding device. Background Technology

[0002] During ship transport, tarpaulins are a type of material that serves both covering and securing functions. These tarpaulins are mainly used when loading bulk cargo that is prone to spillage, to cover it tightly and prevent the material from being thrown out during transportation due to wind, turbulence, or other reasons.

[0003] As disclosed in CN219885194U, a wharf overlay fabric reel relates to the field of wharf auxiliary facilities technology. It includes a support assembly, a rotating assembly, and a reel assembly. Two sets of rotating assemblies are respectively positioned at both ends of the reel assembly, which is mounted on the support assembly. This device installs the overlay fabric onto the reel assembly, and the rotating assembly, in conjunction with the reel assembly, effectively raises and lowers the overlay fabric. The support assembly, in conjunction with the reel assembly, allows the device to be installed at the edge of the ship's deck. During wharf loading operations, the rotating assembly and reel assembly work together to quickly lay the overlay fabric between the ship and the wharf. The device is simple to operate, effective, reduces labor intensity and the number of workers required, and significantly improves laying and rewinding speeds, thereby increasing overall loading efficiency.

[0004] Currently, in windy weather, the glove cloth will sway due to the wind force. Even if it can be loosened by adjusting the motor, a large pulling force will still be generated when the wind is strong, which will have a certain impact on the motor. In addition, after the glove cloth is finished, some material will remain on its surface. If it is not cleaned in time and rolled up directly, the material will be trapped between the glove cloth. If there are sharp particles in the material, they will damage the glove cloth under the pressure after rolling, affecting its use. Moreover, due to long-term use and continuous rolling and laying, the surface tension of the glove cloth will change, causing damage to the surface of the glove cloth and seawater corrosion and oxidation problems, making it difficult to use for a long time.

[0005] Therefore, we propose an electric winding and unwinding device for the overlock fabric to solve the problems mentioned above. Utility Model Content

[0006] In view of the limitations of existing technologies, when the wind is strong, a large pulling force is still generated, which has a certain impact on the generator. In addition, sharp particles in the material can damage the gutter cloth under the pressure after winding. Furthermore, due to long-term use and continuous winding and laying, the surface tension of the gutter cloth will change, causing damage to the surface of the gutter cloth. The purpose of this utility model is to provide an electric winding device for winding and unwinding gutter cloth.

[0007] To solve the above problems, the technical solution adopted by this utility model is as follows: an electric winding device for winding and unwinding overpass cloth, including a platform, a motor installed at the top of the platform, a roller rotatably installed on the side wall of the platform, overpass cloth wound around the side wall of the roller, a fixing component fixedly installed on the side wall of the platform, sweeping components symmetrically installed inside the fixing component, and a protective component installed on the side wall of the fixing component.

[0008] Furthermore, the fixing component includes two first connecting plates, which are symmetrically fixedly connected to the side wall of the platform. The two first connecting plates are jointly fixedly connected to a support frame. A mounting frame is fixedly connected to the top of the support frame, and first springs are symmetrically fixedly connected to the top and bottom walls of the mounting frame.

[0009] Furthermore, the two first springs located on the same horizontal plane are fixedly connected to a clamping plate. Each clamping plate has inclined surfaces on both sides. Electromagnets are symmetrically fixedly connected to the inner top and bottom walls of the mounting frame. A permanent magnet is fixedly connected to the top of the clamping plate. Rectangular holes are symmetrically opened on the side walls of the mounting frame.

[0010] Furthermore, each of the rectangular holes has a wedge plate slidably connected through its inner wall, and the wedge surface of each wedge plate slides against the adjacent inclined surface. The side walls of the wedge plates are symmetrically fixedly connected with connecting rods, and multiple connecting rods are jointly fixedly connected with a pull plate. The side wall of the pull plate is fixedly connected with a second spring, and one end of the second spring is fixedly connected to the side wall of the mounting frame.

[0011] Furthermore, the cleaning assembly includes two electric push rods, each of which is fixedly connected to the top of the mounting frame. A movable plate is symmetrically slidably connected to the inner wall of the mounting frame. The movable end of the electric push rod passes through the top wall of the mounting frame and is fixedly connected to the top of the adjacent movable plate. A fixed plate is symmetrically fixedly connected to the side wall of the mounting frame.

[0012] Furthermore, each of the fixed plate sidewalls is rotatably connected to a cylindrical gear, and a rack plate is slidably embedded in the fixed plate sidewall along a diagonal symmetry. Each rack plate is meshed with an adjacent cylindrical gear, and each rack plate sidewall is fixedly connected to the sidewall of an adjacent movable plate through a second connecting plate. The bottom wall of the movable plate is provided with a sliding groove.

[0013] Furthermore, a reciprocating screw is rotatably connected to the inner wall of the chute, and a slider is threadedly connected to the side wall of the reciprocating screw. The slider slides against the inner wall of the chute. A cleaning plate is fixedly connected to the bottom wall of the slider. Rubber wheels are symmetrically fixedly connected to the side wall of the reciprocating screw, and each rubber wheel is located on the same horizontal plane as the adjacent cleaning plate.

[0014] Furthermore, the protective component includes a through hole, which is formed in the side wall of the slide groove. Each slide side wall is symmetrically fixedly connected to a first mounting plate, and the side wall of the through hole is symmetrically fixedly connected to a second mounting plate. A corrugated pipe is fixedly connected between each first mounting plate and the second mounting plate.

[0015] Furthermore, the sidewall of the movable plate is symmetrically fixedly connected with fixing rods, and two fixing rods at the same height are jointly fixedly connected to a connecting box. The bottom of the connecting box is provided with multiple round holes at equal intervals, and the top of the corrugated pipe is fixedly connected to a feed pipe.

[0016] Furthermore, each of the feed pipes is equipped with a one-way feed valve, the corrugated pipe sidewall is fixedly connected to a guide tube, the guide tube is equipped with a one-way discharge valve, and one end of the guide tube is fixedly connected to the sidewall of the adjacent connecting box.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] By setting up a fixing component, pulling the two side plates outwards stretches the second spring, causing it to extend into the rectangular hole. This releases the wedge plate's restriction on the clamping plate. Under the elastic force of the first spring, the upper and lower clamping plates are pushed closer together, securing the guide cloth firmly. This prevents direct tension on the drum during windy conditions, thus avoiding damage to the motor output. Furthermore, the guide cloth between the drum and the mounting frame is slack, allowing for buffering even if strong winds cause the clamped guide cloth to move forward slightly. This further reduces the damage to the motor output when the grate cloth is exposed to wind, thus improving the motor's service life. By setting up a sweeping component, during the subsequent winding process, the friction between the rubber wheel and the grate cloth causes the rubber wheel to rotate, which in turn causes the reciprocating screw to rotate synchronously. The continuous rotation of the reciprocating screw drives the slider to move back and forth along the inside of the slide groove, thereby causing the cleaning plate to continuously sweep the surface of the grate cloth, removing the material adhering to it. This prevents residual material from being trapped in the middle after winding, which could damage the grate cloth, affect its service life, and improve the practicality of the device.

[0019] By setting up protective components, as the reciprocating screw rotates, when the slider moves to the left, the left bellows is compressed, and a pressure difference is generated inside the right bellows. This causes the protective oil, with the cooperation of the one-way feed valve, to enter the right bellows only through the right feed pipe. As the slider moves to the right, the pressure inside the right bellows increases, and with the cooperation of the one-way discharge valve, the protective oil inside can only enter the connecting box along the guide tube and overflow through the round hole. As the baffle cloth moves, it is evenly coated. The pressure difference generated inside the left bellows draws the external protective oil into the left bellows. Through the reciprocating motion of the slider, the protective oil is continuously drawn in and evenly coated onto the surface of the baffle cloth for protection, improving the protective effect and extending the service life of the baffle cloth. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the drum in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the fixing component, the sweeping component, and the protective component in this utility model;

[0023] Figure 4 This is a cross-sectional view of the fixing component, the sweeping component, and the protective component in this utility model;

[0024] Figure 5 for Figure 4 A magnified view of part A in the middle;

[0025] Figure 6 This is a cross-sectional view of the fixing component in this utility model;

[0026] Figure 7 This is a schematic diagram of the main structure of the fixing component in this utility model;

[0027] Figure 8 for Figure 6 A magnified view of part B in the middle section;

[0028] Figure 9 This is a schematic diagram of the cleaning component in this utility model;

[0029] Figure 10 for Figure 9 A magnified view of part C in the middle;

[0030] Figure 11 This is a schematic diagram of the main structure of the cleaning component in this utility model;

[0031] Figure 12 This is a schematic diagram of the protective component in this utility model;

[0032] Figure 13 This is a schematic diagram of the main structure of the protective component in this utility model.

[0033] In the diagram: 1. Platform; 2. Motor; 3. Roller; 4. Passing cloth; 5. Fixing assembly; 51. First connecting plate; 52. Support frame; 53. Mounting frame; 54. First spring; 55. Clamping plate; 56. Electromagnet; 57. Permanent magnet; 58. Rectangular hole; 59. Wedge plate; 510. Connecting rod; 511. Inclined surface; 512. Pulling plate; 513. Second spring; 6. Sweeping assembly; 61. Electric push rod; 62. Moving plate; 63. Slide groove 64. Reciprocating lead screw; 65. Slider; 66. Cleaning plate; 67. Rubber wheel; 68. Fixing plate; 69. Rack plate; 610. Second connecting plate; 611. Cylindrical gear; 7. Protective component; 71. Through hole; 72. First mounting plate; 73. Second mounting plate; 74. Bellows; 75. Feed pipe; 76. One-way feed valve; 77. Fixing rod; 78. Connecting box; 79. Round hole; 710. Conduit; 711. One-way discharge valve. Detailed Implementation

[0034] The present invention will be further described below with reference to specific embodiments.

[0035] To address the issue that the girdle fabric 4 sways due to wind during windy weather, and although it can be loosened by motor 2, strong winds still generate significant pulling force, affecting motor 2, the following measures are taken: Figures 1-8 As shown:

[0036] An electric retractable tarpaulin winding device includes a platform 1, a motor 2 mounted on the top of the platform 1, and a drum 3 rotatably mounted on the side wall of the platform 1. Tarpaulin 4 is wound around the side wall of the drum 3. By constructing a movable platform 1, the drum 3 is mounted on the platform 1, and an independent set of motor 2 and gearbox is provided. The motor 2 drives the tarpaulin 4 to lay and retract. A fixing component 5 is fixedly installed on the side wall of the platform 1. By setting the fixing component 5, pulling the pull plates 512 on both sides outward, the second spring 513 is in a stretched state, and the wedge plate 59 moves into the rectangular hole 58, releasing the wedge plate 59 from the tension. The clamping plate 55 is positioned and, under the elastic action of the first spring 54, pushes the upper and lower clamping plates 55 closer together to securely hold the guide cloth 4, preventing direct tension on the drum 3 when the wind blows, thus avoiding damage to the output end of the motor 2. Furthermore, the guide cloth 4 between the drum 3 and the mounting frame 53 is in a slack state. Even if the wind is too strong and causes the clamped guide cloth 4 to move forward a short distance, the slack guide cloth 4 between the drum 3 and the mounting frame 53 can provide cushioning, further reducing the problem of damage to the output end of the motor 2 when the wind blows, and improving the service life of the motor 2.

[0037] The fixed assembly 5 is symmetrically equipped with a sweeping assembly 6. By setting the sweeping assembly 6, during the subsequent winding process, the rubber wheel 67 is driven to rotate by friction with the guide cloth 4, thereby causing the reciprocating screw 64 to rotate synchronously. The continuous rotation of the reciprocating screw 64 drives the slider 65 to move back and forth along the inside of the slide groove 63, thereby causing the cleaning plate 66 to continuously sweep the surface of the guide cloth 4, sweeping off the material adhering to it. This prevents residual material from being stuck in the middle after winding, which would damage the guide cloth 4, affect its service life, and improve the practicality of the device.

[0038] A protective component 7 is installed on the side wall of the fixed component 5. By setting the protective component 7, as the reciprocating screw 64 rotates, when the slider 65 moves to the left, the left bellows 74 is compressed, and a pressure difference is generated inside the right bellows 74. This causes the protective oil, with the cooperation of the one-way feed valve 76, to enter the inside of the right bellows 74 only through the right feed pipe 75. As the slider 65 moves to the right, the pressure inside the right bellows 74 increases, and with the cooperation of the one-way discharge valve 711, the protective oil inside can only enter the inside of the connecting box 78 along the guide tube 710 and overflow through the round hole 79. As the guide cloth 4 moves, it is evenly coated. The pressure difference generated inside the left bellows 74 will draw the external protective oil into the left bellows 74. Through the reciprocating motion of the slider 65, the protective oil is continuously drawn in and evenly coated onto the surface of the guide cloth 4 for protection, improving the protective effect and extending the service life of the guide cloth 4.

[0039] The fixing component 5 includes two first connecting plates 51, which are symmetrically fixedly connected to the side wall of the platform 1. The two first connecting plates 51 are jointly fixedly connected to a support frame 52. The top of the support frame 52 is fixedly connected to a mounting frame 53. The top and bottom walls of the mounting frame 53 are symmetrically fixedly connected to first springs 54.

[0040] Two first springs 54 located on the same horizontal plane are fixedly connected to a clamping plate 55. Each clamping plate 55 has a sloping surface 511 on both sides. Electromagnets 56 are symmetrically fixedly connected to the inner top and bottom walls of the mounting frame 53. A permanent magnet 57 is fixedly connected to the top of the clamping plate 55. Rectangular holes 58 are symmetrically opened on the side walls of the mounting frame 53.

[0041] Each rectangular hole 58 has a wedge plate 59 slidably connected through its inner wall. The wedge-shaped surface of each wedge plate 59 slides against the adjacent inclined surface 511. The side walls of the wedge plate 59 are symmetrically fixedly connected with connecting rods 510. Multiple connecting rods 510 are fixedly connected to a pull plate 512. The side wall of the pull plate 512 is fixedly connected with a second spring 513. One end of the second spring 513 is fixedly connected to the side wall of the mounting frame 53.

[0042] In this scheme: by setting the fixing component 5, the motor 2 is first started, and the motor 2 is used to raise and lower the girder cloth 4, passing the girder cloth 4 through the mounting frame 53. Then, two people on the boat pull the girder cloth 4 to lay and fix it. After laying is completed, in case of strong winds at sea, the girder cloth 4 is blown up, and the resulting tension will exert force on the drum 3, further damaging the output end of the motor 2. After laying is completed, the pull plates 512 on both sides are pulled outward. At this time, the second spring 513 is in a stretched state, and the wedge plate 59 will move into the rectangular hole 58, releasing the wedge plate 59 from limiting the clamping plate 55. Under the elastic action of the first spring 54, the upper and lower clamping plates 55 are pushed closer to each other, firmly clamping the girder cloth 4. Then, the pull plates 512 on both sides are released. 2. Under the elastic action of the second spring 513, the pull plate 512 is pulled to reset and move, and the wedge plate 59 is moved to its original position. At this time, the wedge plate 59 and the inclined surface 511 of the top wall of the clamping plate 55 are in contact with each other. The elastic force of the first spring 54 is large enough to make the two clamping plates 55 clamp the barrier cloth 4, so as to avoid the direct pulling force on the drum 3 when the wind is blowing, which would damage the output section of the motor 2. In addition, the barrier cloth 4 between the drum 3 and the mounting frame 53 is in a loose state. Even if the wind is too strong and the clamped barrier cloth 4 moves forward a small distance, it can be buffered by the loose barrier cloth 4 between the drum 3 and the mounting frame 53, which further reduces the problem of the barrier cloth 4 damaging the output end of the motor 2 when the wind is blowing, and improves the service life of the motor 2.

[0043] When the gutter cloth 4 is finished and needs to be recycled, the electromagnet 56 is energized, causing the electromagnet 56 and the permanent magnet 57 to generate opposite magnetic poles. Under the action of magnetic attraction, the upper and lower clamping plates 55 are moved away from each other. At this time, the wedge plate 59 is pushed outward by the cooperation of the inclined surface 511 at the top of the clamping plate 55 and the wedge plate 59. At this time, the second spring 513 is in a stretched state. When the clamping plate 55 moves above the wedge plate 59, the second spring 513 pulls the wedge plate 59 back to its original position under the elastic action of the second spring 513, limiting the clamping plate 55. At this time, the electromagnet 56 is de-energized, and then the gutter cloth 4 is recycled. The magnetic attraction force of the electromagnet 56 is greater than the elastic force of the first spring 54.

[0044] To address the issue that after the grate fabric 4 completes its work, some material remains adhered to its surface. If this material is not cleaned promptly and is rolled up directly, it can become trapped between the layers of the grate fabric 4. If the material contains sharp particles, the pressure after rolling can damage the grate fabric 4, affecting its usability. Figure 9 - Figure 11 As shown:

[0045] The cleaning component 6 includes two electric push rods 61, each of which is fixedly connected to the top of the mounting frame 53. A movable plate 62 is symmetrically slidably connected to the inner wall of the mounting frame 53. The movable end of the electric push rod 61 passes through the top wall of the mounting frame 53 and is fixedly connected to the top of the adjacent movable plate 62. A fixed plate 68 is symmetrically fixedly connected to the side wall of the mounting frame 53.

[0046] Each fixed plate 68 has a cylindrical gear 611 rotatably connected to its side wall. A rack plate 69 is slidably embedded in the side wall of the fixed plate 68 along a diagonal symmetrical arrangement. Each rack plate 69 is meshed with the adjacent cylindrical gear 611. Each rack plate 69 is fixedly connected to the side wall of the adjacent movable plate 62 through a second connecting plate 610. The bottom wall of the movable plate 62 is provided with a sliding groove 63.

[0047] A reciprocating screw 64 is rotatably connected to the inner wall of the slide 63. A slider 65 is threadedly connected to the side wall of the reciprocating screw 64. The slider 65 slides against the inner wall of the slide 63. A cleaning plate 66 is fixedly connected to the bottom wall of the slider 65. Rubber wheels 67 are symmetrically fixedly connected to the side wall of the reciprocating screw 64. Each rubber wheel 67 is located on the same horizontal plane as the adjacent cleaning plate 66.

[0048] In this solution: After the grate cloth 4 is used, its surface will have material adhering to it. If it is not cleaned in time, it will get stuck between the roll-up grate cloth 4, causing damage to the surface of the grate cloth 4. Therefore, before the grate cloth 4 is rolled up, the electric push rod 61 is activated. The movable end of the electric push rod 61 extends, thereby driving the upper moving plate 62 to move down. During the downward movement of the upper moving plate 62, the meshing relationship between the rack plate 69 and the cylindrical gear 611 causes the lower moving plate 62 to move up synchronously. This allows the rubber wheels 67 and the cleaning plate 66 inside the upper and lower moving plates 62 to contact the top and bottom walls of the grate cloth 4, respectively. During the subsequent winding process, the rubber wheel 67 rubs against the guide cloth 4, causing the rubber wheel 67 to rotate. This causes the reciprocating screw 64 to rotate synchronously. The continuous rotation of the reciprocating screw 64 drives the slider 65 to move back and forth along the inside of the slide groove 63. This allows the cleaning plate 66 to continuously clean the surface of the guide cloth 4, removing any adhering material. This prevents residual material from being trapped in the middle after winding, which could damage the guide cloth 4, affect its service life, and improve the practicality of the device. The cleaning plate 66 is wider than the guide cloth 4, so that the entire surface of the guide cloth 4 can be cleaned during the reciprocating cleaning process.

[0049] To address the issue of surface tension changes in the glove fabric 4 due to long-term use and continuous winding and laying, causing damage to the surface of the glove fabric 4, as well as seawater corrosion and oxidation, making it unsuitable for long-term use, such as... Figures 12-13 As shown:

[0050] The protective component 7 includes a through hole 71, which is formed on the side wall of the slide 63. Each slider 65 has a first mounting plate 72 symmetrically fixedly connected to its side wall. A second mounting plate 73 is symmetrically fixedly connected to the side wall of the through hole 71. A corrugated pipe 74 is fixedly connected between each first mounting plate 72 and the second mounting plate 73.

[0051] The movable plate 62 is symmetrically fixedly connected to the side wall with fixed rods 77. The two fixed rods 77 at the same height are fixedly connected to the connecting box 78. The bottom of the connecting box 78 is provided with multiple round holes 79 at equal intervals. The top of the corrugated pipe 74 is fixedly connected to the feed pipe 75.

[0052] Each feed pipe 75 is equipped with a one-way feed valve 76. The corrugated pipe 74 is fixedly connected to the side wall of the conduit 710. The conduit 710 is equipped with a one-way discharge valve 711. One end of the conduit 710 is fixedly connected to the side wall of the adjacent connecting box 78.

[0053] In this scheme: after the two cleaning plates 66 contact the upper and lower surfaces of the gutter cloth 4 respectively, the upper and lower connecting boxes 78 contact the upper and lower surfaces of the gutter cloth 4 respectively. During the winding process, the one-way feed valve 76 and the one-way discharge valve 711 are opened, and the feed pipe 75 is connected to a protective oil tank (used to coat the surface of the gutter cloth 4 to form a protective layer, so as to improve the protective effect and increase the service life of the gutter cloth 4). As the reciprocating screw 64 rotates, when the slider 65 moves to the left, the bellows 74 on the left side is compressed, and a pressure difference is generated inside the bellows 74 on the right side, so that the protective oil, in conjunction with the one-way feed valve 76, is released into the gutter cloth. The protective oil can only enter the right corrugated pipe 74 through the right feed pipe 75. As the slider 65 moves to the right, the pressure inside the right corrugated pipe 74 increases. With the cooperation of the one-way discharge valve 711, the protective oil inside can only enter the connecting box 78 through the guide pipe 710 and overflow through the round hole 79. As the barrier cloth 4 moves, it is evenly coated. The pressure difference generated inside the left corrugated pipe 74 will draw the external protective oil into the left corrugated pipe 74. Through the reciprocating motion of the slider 65, the protective oil is continuously drawn in and evenly coated onto the surface of the barrier cloth 4 for protection, improving the protective effect and extending the service life of the barrier cloth 4.

[0054] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrically operated unwinding and rewinding device for a curtain, comprising a platform (1), characterized in that: The top of the platform (1) is provided with a motor (2), the side wall of the platform (1) is rotatably provided with a winding drum (3), the side wall of the winding drum (3) is wound with a overpass cloth (4), the side wall of the platform (1) is fixedly provided with a fixing assembly (5), the inside of the fixing assembly (5) is symmetrically provided with a cleaning assembly (6), and the side wall of the fixing assembly (5) is provided with a protection assembly (7).

2. A motorized roll-up screen winding device according to claim 1, characterized in that, The fixing assembly (5) comprises two first connecting plates (51), the two first connecting plates (51) are fixedly connected to the side wall of the platform (1) in a symmetrical manner, the two first connecting plates (51) are fixedly connected with a support frame (52) in common, the top of the support frame (52) is fixedly connected with a mounting frame (53), and the top wall and the bottom wall of the mounting frame (53) are fixedly connected with first springs (54) in a symmetrical manner.

3. A motorized roll-up screen winding device according to claim 2, characterized in that, The two first springs (54) located on the same horizontal plane are fixedly connected with a clamping plate (55) in common, the two side walls of each clamping plate (55) are provided with inclined surfaces (511), the inner top wall and the inner bottom wall of the mounting frame (53) are fixedly connected with electromagnets (56) in a symmetrical manner, the top of the clamping plate (55) is fixedly connected with a permanent magnet (57), and the side wall of the mounting frame (53) is provided with a rectangular hole (58) in a symmetrical manner.

4. A motorized roll-up screen winding device according to claim 3, characterized in that, The inner wall of each rectangular hole (58) is slidably connected with a wedge-shaped plate (59), the wedge surface of each wedge-shaped plate (59) is in abutting sliding connection with the adjacent inclined surface (511), the side wall of the wedge-shaped plate (59) is fixedly connected with a connecting rod (510) in a symmetrical manner, a plurality of connecting rods (510) are fixedly connected with a pull plate (512) in common, the side wall of the pull plate (512) is fixedly connected with a second spring (513), and one end of the second spring (513) is fixedly connected with the side wall of the mounting frame (53).

5. The electrically operated fabric winding device according to claim 2, characterized in that, The cleaning assembly (6) comprises two electric push rods (61), each electric push rod (61) is fixedly connected to the top of the mounting frame (53), the inner wall of the mounting frame (53) is symmetrically slidably connected with a moving plate (62), the movable end of the electric push rod (61) penetrates through the top wall of the mounting frame (53) and is fixedly connected with the top of the adjacent moving plate (62), and the side wall of the mounting frame (53) is fixedly connected with a fixed plate (68) in a symmetrical manner.

6. A motorized roll-up screen winding device according to claim 5, characterized in that, The side wall of each fixed plate (68) is rotatably connected with a cylindrical gear (611), the side wall of the fixed plate (68) is slidably connected with a rack plate (69) in a diagonal and symmetrical manner, each rack plate (69) is in meshing connection with the adjacent cylindrical gear (611), and the side wall of each rack plate (69) is fixedly connected with the side wall of the adjacent moving plate (62) through a second connecting plate (610).

7. A motorized roll-up screen winding device according to claim 6, characterized in that, The inner side wall of the sliding groove (63) is rotationally connected with a reciprocating screw rod (64), the side wall of the reciprocating screw rod (64) is threadedly connected with a sliding block (65), the sliding block (65) slides against the inner wall of the sliding groove (63), the bottom wall of the sliding block (65) is fixedly connected with a cleaning plate (66), the side wall of the reciprocating screw rod (64) is fixedly connected with rubber wheels (67) in pairs, and each rubber wheel (67) is located in the same horizontal plane as the adjacent cleaning plate (66).

8. A motorized roll-up screen winding device according to claim 7, characterized in that, The protection assembly (7) comprises through holes (71) which are formed in the side wall of the sliding groove (63), the side wall of each sliding block (65) is fixedly connected with first mounting plates (72) in pairs, the side wall of each through hole (71) is fixedly connected with second mounting plates (73) in pairs, and the first mounting plate (72) and the second mounting plate (73) are fixedly connected with corrugated pipes (74).

9. A motorized roll-up screen winding device according to claim 8, characterized in that, The side wall of the moving plate (62) is fixedly connected with fixed rods (77) in pairs, the fixed rods (77) at the same height are fixedly connected with a connecting box (78) together, a plurality of circular holes (79) are equidistantly formed in the bottom end of the connecting box (78), and the top end of the corrugated pipe (74) is fixedly and continuously connected with a feeding pipe (75).

10. A motorized roll-up screen winding device according to claim 9, characterized in that, A one-way feeding valve (76) is mounted in each feeding pipe (75), the side wall of the corrugated pipe (74) is fixedly and continuously connected with a conduit (710), the conduit (710) is internally mounted with a one-way discharging valve (711), and one end of the conduit (710) is fixedly and continuously connected with the side wall of the adjacent connecting box (78).

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