Film winding mechanism

Abstract

The utility model discloses a film winding mechanism, and belongs to the field of film winding packaging. Comprising a rack; the film placing module is used for placing and driving the protective film to move; the positioning assembly is used for positioning the optical cable and cooperating with the film releasing module to wind a film on the optical cable; the film clamping module is used for clamping and cutting off the protective film; the film placing module, the positioning assembly and the film clamping module are all fixed to the rack, and the film placing module, the positioning assembly and the film clamping module are oppositely arranged. Compared with the prior art, the full-automatic film winding device has the advantages that full-automatic film winding of the optical cable can be achieved through cooperation of the film releasing module, the positioning assembly and the film clamping module, the film winding efficiency can be improved, and the packaging cost can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of wrapping packaging, and specifically relates to a wrapping mechanism. Background Technology

[0002] Normally, after the optical cable is produced, it is wound into coils and stored. After the optical cable is wound, a protective film needs to be wrapped around it for protection. At present, the film wrapping process is mainly done manually, which has the problems of low automation and low packaging efficiency. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a wrapping mechanism that can automatically wrap optical cables, thereby improving wrapping efficiency and reducing packaging costs.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model provides a film wrapping mechanism, comprising:

[0006] frame;

[0007] A film-laying module used to place and move the protective film;

[0008] A positioning component used to position optical cables and work with a film-wrapping module to wrap the optical cables;

[0009] A clamping module for holding and cutting the protective film;

[0010] The film-laying module, positioning component, and film-clamping module are all fixed on the frame, and the film-laying module, positioning component, and film-clamping module are arranged opposite to each other.

[0011] Furthermore, the film-laying module includes a film-laying support plate, a film-laying motor, a transmission assembly, and a film-laying wheel. The film-laying support plate is fixed on the frame, and the film-laying motor and the transmission assembly are both mounted on the film-laying support plate. The film-laying wheel is movably connected to the film-laying support plate, and the film-laying wheel and the film-laying motor are connected by transmission assembly. The film-laying wheel is provided with an installation shaft for installing protective film.

[0012] Furthermore, the transmission assembly includes a drive wheel, a transmission belt, a transmission wheel, a transmission shaft, a transmission gear, and a bearing. The drive wheel is connected to the output end of the film-laying motor, and the drive wheel and the transmission wheel are connected via a transmission belt. The transmission shaft passes through the film-laying support plate and is rotatably connected to the film-laying support plate via the bearing. The transmission wheel and the transmission gear are coaxially connected to both ends of the transmission shaft. The film-laying wheel meshes with the transmission gear via a gear.

[0013] Furthermore, multiple sets of limiting wheels are installed on the film-laying support plate. The multiple sets of limiting wheels are arranged to form an arc-shaped structure. A limiting groove is provided between each set of limiting wheels. The film-laying wheel is an annular structure with an opening. The film-laying wheel passes through the limiting groove and can move relative to the limiting groove.

[0014] Furthermore, the positioning component includes:

[0015] Inner ring limiting module used to limit the inner side of optical cable;

[0016] Outer ring limiting module used to limit the outer side of optical cable;

[0017] Bottom support component used to support the bottom of the optical cable;

[0018] A top clamping module used to clamp the top of the optical cable;

[0019] An active roller module used to drive the optical cable to rotate and wrap the film;

[0020] The inner ring limiting module, outer ring limiting module, bottom support, and top clamping module are all fixed to the frame, and form a positioning area for positioning the optical cable.

[0021] Furthermore, a support plate is installed on the frame, and a first linear slide rail is installed on the support plate. The inner ring limiting module includes an inner ring driving cylinder, a first inner ring connecting plate, a second inner ring connecting plate, an inner ring slider, and an inner ring limiting post. The inner ring driving cylinder is fixed to the frame. The first inner ring connecting plate is connected to the output end of the inner ring driving cylinder. The second inner ring connecting plate is connected to the first inner ring connecting plate. The inner ring slider and the inner ring limiting post are both connected to the second inner ring connecting plate. The inner ring slider is slidably connected to the first linear slide rail. A long strip-shaped first movable groove is provided on the frame. The inner ring limiting post passes through the first movable groove vertically and can move horizontally within the first movable groove.

[0022] The outer ring limiting module includes an outer ring driving cylinder, a first outer ring connecting plate, a second outer ring connecting plate, an outer ring slider, and an outer ring limiting post. The outer ring driving cylinder is fixed to the frame. The first outer ring connecting plate is connected to the output end of the outer ring driving cylinder. The second outer ring connecting plate is connected to the first outer ring connecting plate. The outer ring slider and the outer ring limiting post are both connected to the second outer ring connecting plate. The outer ring slider is slidably connected to the first linear slide rail. The inner ring limiting post and the outer ring limiting post are located on the inner and outer sides of the positioning area, respectively. The outer ring limiting post passes through the first movable groove vertically and can move horizontally outside the first movable groove.

[0023] Furthermore, the bottom support includes a support column and a support base. One end of the support base is fixed to the frame, and the other end is damped and rotatably connected to one end of the support column. The support column is located below the positioning area, which facilitates adjustment of the tilt angle of the support column and makes it easy to adapt to optical cables of different sizes.

[0024] Furthermore, the top clamping module includes a clamping drive cylinder, a clamping mounting plate, a first connecting rod, a second connecting rod, a third connecting rod, and a clamping column. The clamping drive cylinder and the clamping mounting plate are both fixed on the frame. One end of the first connecting rod is connected to the output end of the clamping drive cylinder, and the other end is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to one end of the third connecting rod, and the other end of the third connecting rod is fixedly connected to one end of the clamping column. A rotating protrusion is provided in the middle of the third connecting rod. A rotating groove is provided at the end of the clamping mounting plate away from the frame. The rotating protrusion is disposed in the rotating groove and is rotatably connected to the side wall of the rotating groove through a rotating shaft. The clamping column is located above the positioning area.

[0025] Furthermore, the active roller module includes an active roller mounting plate, an active roller drive cylinder, a cylinder connecting plate, an active roller slider, a second linear slide rail, a rotary motor, and a rotary roller. The second linear slide rail is fixed to the frame, the active roller slider is slidably connected to the second linear slide rail, the active roller mounting plate is fixed to the active roller slider, the cylinder connecting plate and the rotary motor are connected to the active roller mounting plate, the active roller drive cylinder is connected to the cylinder connecting plate, one end of the rotary roller passes through the active roller mounting plate and is connected to the output end of the rotary motor, and the frame is provided with a long strip-shaped second movable groove, the rotary roller passes through the second movable groove vertically, and can move horizontally within the second movable groove.

[0026] Furthermore, the film clamping module includes a film clamping support column, a film clamping connecting plate, an advance / retreat drive cylinder, a gripper cylinder, a film cutting gripper, and a film cutting blade. The film clamping support column is fixed on the frame, the advance / retreat drive cylinder is mounted on the film clamping support column through the film clamping connecting plate, the gripper cylinder is connected to the output end of the advance / retreat drive cylinder, the film cutting gripper is connected to the conveying end of the gripper cylinder, and the film cutting blade is fixed on the film cutting gripper.

[0027] Furthermore, the inner surface of the cutting gripper is a gear surface, which has an anti-slip effect.

[0028] Compared with the prior art, the beneficial effects of this utility model are: it can realize fully automatic film wrapping of optical cables through the cooperation of film-laying module, positioning component and film-clamping module, which can improve film wrapping efficiency and reduce packaging costs. Attached Figure Description

[0029] Figure 1This is a schematic diagram of the wrapping mechanism.

[0030] Figure 2 This is a first-person view structural diagram of the membrane placement module.

[0031] Figure 3 This is a schematic diagram of the membrane placement module from a second perspective.

[0032] Figure 4 It is a structural diagram of the transmission wheel, transmission shaft, transmission gear, and bearing.

[0033] Figure 5 This is a structural diagram of the positioning component.

[0034] Figure 6 This is a structural diagram of the inner ring limiting module and the outer ring limiting module.

[0035] Figure 7 This is a schematic diagram of the active roller module.

[0036] Figure 8 This is a structural diagram of the bottom support component.

[0037] Figure 9 This is a structural diagram of the top clamping module.

[0038] Figure 10 This is a schematic diagram of the membrane module.

[0039] In the diagram: 1. Frame; 11. First movable slot; 12. Second movable slot; 2. Protective film; 3. Film feeding module; 31. Film feeding support plate; 33. Transmission assembly; 331. Drive wheel; 333. Transmission wheel; 334. Transmission shaft; 335. Transmission gear; 332. Bearing; 34. Film feeding wheel; 35. Mounting shaft; 36. Limiting slot; 32. Limiting wheel; 4. Positioning assembly; 41. Inner ring limiting module; 411. Support plate; 412. First linear slide rail; 413. Inner ring drive cylinder; 414. First inner ring connecting plate; 415. Second inner ring connecting plate; 416. Inner ring slider; 417. Inner ring limiting post; 42. Outer ring limiting module; 421. Outer ring drive cylinder; 422. First outer ring connecting plate; 423. Second outer ring connecting plate; 424. Outer ring slider; 42 5. Outer ring limiting post; 43. Bottom support component; 431. Support post; 432. Support base; 44. Top clamping module; 441. Clamping drive cylinder; 442. Clamping mounting plate; 443. First connecting rod; 444. Second connecting rod; 445. Third connecting rod; 446. Clamping post; 447. Rotating protrusion; 448. Rotating groove; 45. Active roller module; 451. Active roller mounting plate; 452. Active roller drive cylinder; 453. Cylinder connecting plate; 454. Active roller slider; 455. Second linear slide rail; 456. Rotating motor; 457. Rotating roller; 46. Positioning area; 5. Film clamping module; 51. Film clamping support post; 52. Film clamping connecting plate; 53. Forward and backward drive cylinder; 54. Gripper cylinder; 55. Film cutting gripper; 56. Film cutting blade; 6. Optical cable. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0041] To achieve the above objectives, the technical solution of this utility model is as follows:

[0042] See Figure 1-10 As shown, this embodiment provides a film wrapping mechanism, including:

[0043] Rack 1;

[0044] A film-laying module 3 for placing and moving the protective film 2;

[0045] Positioning component 4 is used to position the optical cable 6 and to work with the film-laying module 3 to wrap the optical cable 6 with film.

[0046] The clamping module 5 is used to clamp and cut the protective film 2;

[0047] The film-laying module 3, the positioning component 4, and the film-clamping module 5 are all fixed on the frame 1, and the film-laying module 3, the positioning component 4, and the film-clamping module 5 are arranged relative to each other.

[0048] Furthermore, the film-laying module 3 includes a film-laying support plate 31, a film-laying motor, a transmission assembly 33, and a film-laying wheel 34. The film-laying support plate 31 is fixed on the frame 1. The film-laying motor and the transmission assembly 33 are both mounted on the film-laying support plate 31. The film-laying wheel 34 is movably connected to the film-laying support plate 31, and the film-laying wheel 34 is connected to the film-laying motor via the transmission assembly 33. The film-laying wheel 34 is provided with a mounting shaft 35 for mounting the protective film 2. In this application, the protective film 2 is mounted on the mounting shaft 35 and can rotate relative to the mounting shaft 35. During film wrapping, the front end of the protective film 2 is fixed on the optical cable 6. By rotating the optical cable 6, the front end of the protective film 2 is pulled, thereby realizing the release of the protective film 2. In addition, during the initial wrapping, the protective film 2 needs to be wrapped around the optical cable 6 twice before the front end of the protective film 2 can be fixed to the optical cable 6. Therefore, initially, the front end of the protective film 2 overlaps the optical cable 6, the optical cable 6 is fixed, the film-laying motor works, and drives the film-laying wheel 34 to move through the transmission component 33, thereby moving the protective film 2. While moving, the protective film 2 will rotate relative to the mounting shaft 35 to achieve film laying. When the protective film 2 moves, it will wrap around the optical cable 6 twice, thereby wrapping and fixing its front end to the optical cable 6.

[0049] Furthermore, the transmission assembly 33 includes a drive wheel 331, a transmission belt, a transmission wheel 333, a transmission shaft 334, a transmission gear 335, and a bearing 332. The drive wheel 331 is connected to the output end of the film-laying motor, and the drive wheel 331 and the transmission wheel 333 are connected via the transmission belt. The transmission shaft 334 passes through the film-laying support plate 31 and is rotatably connected to the film-laying support plate 31 via the bearing 332. The transmission wheel 333 and the transmission gear 335 are coaxially connected to both ends of the transmission shaft 334, and the film-laying wheel 34 meshes with the transmission gear 335 via the gear. In this application, when the film-laying motor is working, it can drive the drive wheel 331 to rotate, which in turn drives the transmission belt and the transmission wheel 333 to rotate in sequence. The transmission wheel 333 drives the transmission gear 335 on the other side of the film-laying support plate 31 to rotate via the transmission shaft 334, and the transmission gear 335 drives the film-laying wheel 34 to move through the meshing relationship.

[0050] Furthermore, multiple sets of limiting wheels 32 are installed on the film-laying support plate 31. These sets of limiting wheels 32 are arranged to form an arc-shaped structure, and each set of limiting wheels 32 is provided with a limiting groove 36. The film-laying wheel 34 is an open annular structure that passes through the limiting groove 36 and can move relative to the limiting groove 36. Through the design of the above structure, the film-laying wheel 34 can move along an arc-shaped trajectory, thus facilitating the initial winding of the front end of the protective film onto the optical cable 6.

[0051] Furthermore, the positioning component 4 includes:

[0052] Inner ring limiting module 41 used to limit the inner side of optical cable 6;

[0053] Outer ring limiting module 42 used to limit the outer side of optical cable 6;

[0054] Bottom support 43 for supporting the bottom of optical cable 6;

[0055] Top clamping module 44 for clamping the top of optical cable 6;

[0056] Active roller module 45 used to drive the optical cable 6 to rotate and wrap the film;

[0057] The inner ring limiting module 41, the outer ring limiting module 42, the bottom support 43, and the top pressing module 44 are all fixed to the frame 1, and a positioning area 46 for positioning the optical cable 6 is formed between them.

[0058] Furthermore, a support plate 411 is installed on the frame 1, and a first linear slide rail 412 is installed on the support plate 411. The inner ring limiting module 41 includes an inner ring drive cylinder 413, a first inner ring connecting plate 414, a second inner ring connecting plate 415, an inner ring slider 416, and an inner ring limiting post 417. The inner ring drive cylinder 413 is fixed to the frame 1. The first inner ring connecting plate 414 is connected to the output end of the inner ring drive cylinder 413. The second inner ring connecting plate 415 is connected to the first inner ring connecting plate 414. The inner ring slider 416 and the inner ring limiting post 417 are both connected to the second inner ring connecting plate 415. The inner ring slider 416 is slidably connected to the first linear slide rail 412. A long strip-shaped first movable groove 11 is provided on the frame 1. The inner ring limiting post 417 passes through the first movable groove 11 vertically and can move horizontally within the first movable groove 11.

[0059] The outer ring limiting module 42 includes an outer ring driving cylinder 421, a first outer ring connecting plate 422, a second outer ring connecting plate 423, an outer ring slider 424, and an outer ring limiting post 425. The outer ring driving cylinder 421 is fixed to the frame 1. The first outer ring connecting plate is connected to the output end of the outer ring driving cylinder 421. The second outer ring connecting plate 423 is connected to the first outer ring connecting plate 422. The outer ring slider 424 and the outer ring limiting post 425 are both connected to the second outer ring connecting plate 423. The outer ring slider 424 is slidably connected to the first linear slide rail 412. The inner ring limiting post 417 and the outer ring limiting post 425 are located on the inner and outer sides of the positioning area 46, respectively. The outer ring limiting post 425 passes through the first movable groove 11 vertically and can move horizontally outside the first movable groove 11.

[0060] In this application, the inner ring limiting post 417 and the outer ring limiting post 425 are located on the inner and outer sides of the positioning area 46, respectively, i.e., on the inner and outer sides of the optical cable 6. The inner ring driving cylinder 413 can drive the inner ring limiting post 417 to move horizontally within the first movable groove 11 through the first inner ring connecting plate 414 and the second inner ring connecting plate 415, adjusting its position to facilitate limiting or releasing the inner side of the optical cable 6. The outer ring driving cylinder 421 can drive the outer ring limiting post 425 to move horizontally within the first movable groove 11 through the first outer ring connecting plate 422 and the second outer ring connecting plate 423, adjusting its position to facilitate limiting or releasing the inner and outer sides of the optical cable 6. When the inner ring limiting post 417 and the outer ring limiting post 425 move horizontally within the first movable groove 11, they can be guided by the linear sliding structure formed by the cooperation of the slide rail and the slider, improving the stability of the structure.

[0061] Furthermore, the bottom support 43 includes a support column 431 and a support base 432. One end of the support base 432 is fixed to the frame 1, and the other end is connected to one end of the support column 431 with damping rotation. The support column 431 is located below the positioning area 46, which facilitates the adjustment of the tilt angle of the support column 431 and makes it easy to adapt to optical cables 6 of different sizes.

[0062] Furthermore, the top clamping module 44 includes a clamping drive cylinder 441, a clamping mounting plate 442, a first connecting rod 443, a second connecting rod 444, a third connecting rod 445, and a clamping column 446. The clamping drive cylinder 441 and the clamping mounting plate 442 are both fixed on the frame 1. One end of the first connecting rod 443 is connected to the output end of the clamping drive cylinder 441, and the other end is rotatably connected to one end of the second connecting rod 444. The other end of the second connecting rod 444 is rotatably connected to one end of the third connecting rod 445. The other end of the third connecting rod 445 is fixedly connected to one end of the clamping column 446. A rotating protrusion 447 is provided in the middle of the third connecting rod 445. A rotating groove 448 is provided at the end of the clamping mounting plate 442 away from the frame 1. The rotating protrusion 447 is located in the rotating groove 448 and is rotatably connected to the side wall of the rotating groove 448 through a rotating shaft. The clamping column 446 is located above the positioning area 46.

[0063] In this application, when the output end of the pressing drive cylinder 441 extends, it can push the first connecting rod 443 upward. The first connecting rod 443 rotates while pushing the second connecting rod 444 upward. At this time, since the third connecting rod 445 is installed on the pressing mounting plate 442, it can rotate relative to the pressing mounting plate 442 under the drive of the second connecting rod 444, thereby driving the pressing column 446 to rotate downward and press against the optical cable 6. At the same time, when the output end of the pressing drive cylinder retracts, it can drive the pressing column 446 to rotate upward through the above structure and release the optical cable 6.

[0064] Furthermore, the active roller module 45 includes an active roller mounting plate 451, an active roller drive cylinder 452, a cylinder connecting plate 453, an active roller slider 454, a second linear slide rail 455, a rotary motor 456, and a rotary roller 457. The second linear slide rail 455 is fixed on the frame 1, the active roller slider 454 is slidably connected to the second linear slide rail 455, the active roller mounting plate 451 is fixed on the active roller slider 454, the cylinder connecting plate 453 and the rotary motor 456 are connected to the active roller mounting plate 451, the active roller drive cylinder 452 is connected to the cylinder connecting plate 453, one end of the rotary roller 457 passes through the active roller mounting plate 451 and is connected to the output end of the rotary motor 456, and a long strip-shaped second movable groove 12 is provided on the frame 1. The rotary roller 457 passes through the second movable groove 12 vertically and can move horizontally within the second movable groove 12. In this application, the rotating roller 457 can move relative to the second movable groove 12 under the drive of the active roller drive cylinder 452, so that the rotating roller 457 can be closely attached to the side wall of the optical cable 6; when the rotating motor 456 is working, it can drive the rotating roller 457 to rotate, and then drive the optical cable 6 to rotate through the rotating roller 457. When the optical cable 6 rotates, it will pull the protective film 2 and wrap the protective film 2 around the optical cable 6 to achieve automatic film wrapping.

[0065] Furthermore, the film clamping module 5 includes a film clamping support column 51, a film clamping connecting plate 52, an advance / retreat drive cylinder 53, a gripper cylinder 54, a film cutting gripper 55, and a film cutting blade 56. The film clamping support column 51 is fixed on the frame 1. The advance / retreat drive cylinder 53 is mounted on the film clamping support column 51 through the film clamping connecting plate 52. The gripper cylinder 54 is connected to the output end of the advance / retreat drive cylinder 53. The film cutting gripper 55 is connected to the conveying end of the gripper cylinder 54. The film cutting blade 56 is fixed on the film cutting gripper 55. During the wrapping process, the forward and backward drive cylinder 53 drives the film cutting gripper 55 forward, and the gripper cylinder 54 can open and close 180 degrees, so that the film cutting gripper 55 can hold the protective film 2, which facilitates guiding or tightening the protective film 2 during the wrapping process; at the same time, when the wrapping is completed, the forward and backward drive cylinder 53 drives the film cutting gripper 55 backward, and the film cutting blade 56 can cut the protective film 2 accordingly.

[0066] Furthermore, the inner surface of the cutting jaw 55 is a gear surface, which has an anti-slip effect.

[0067] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film wrapping mechanism, characterized in that, include: frame; A film-laying module used to place and move the protective film; A positioning component used to position optical cables and work with a film-wrapping module to wrap the optical cables; A clamping module for holding and cutting the protective film; The film feeding module, positioning component, and film clamping module are all fixed on the frame, and the film feeding module, positioning component, and film clamping module are arranged opposite to each other. The film-laying module includes a film-laying support plate, a film-laying motor, a transmission assembly, and a film-laying wheel. The film-laying support plate is fixed on the frame. The film-laying motor and the transmission assembly are both mounted on the film-laying support plate. The film-laying wheel is movably connected to the film-laying support plate, and the film-laying wheel is connected to the film-laying motor via the transmission assembly. The film-laying wheel is provided with an mounting shaft for installing protective film.

2. The film-wrapping mechanism as described in claim 1, characterized in that, The transmission assembly includes a drive wheel, a transmission belt, a transmission wheel, a transmission shaft, a transmission gear, and a bearing. The drive wheel is connected to the output end of the film-laying motor, and the drive wheel and the transmission wheel are connected via the transmission belt. The transmission shaft passes through the film-laying support plate and is rotatably connected to the film-laying support plate via the bearing. The transmission wheel and the transmission gear are coaxially connected to both ends of the transmission shaft. The film-laying wheel meshes with the transmission gear via the gear.

3. The film-wrapping mechanism as described in claim 2, characterized in that, The film-laying support plate is equipped with multiple sets of limiting wheels, which are arranged to form an arc-shaped structure. Each set of limiting wheels is provided with a limiting groove. The film-laying wheel is an open annular structure that passes through the limiting groove and can move relative to the limiting groove.

4. The film-wrapping mechanism as described in claim 1, characterized in that, The positioning component includes: Inner ring limiting module used to limit the inner side of optical cable; Outer ring limiting module used to limit the outer side of optical cable; Bottom support component used to support the bottom of the optical cable; A top clamping module used to clamp the top of the optical cable; An active roller module used to drive the optical cable to rotate and wrap the film; The inner ring limiting module, outer ring limiting module, bottom support, and top clamping module are all fixed to the frame, and form a positioning area for positioning the optical cable.

5. A film-wrapping mechanism as described in claim 4, characterized in that, A support plate is mounted on the frame, and a first linear slide rail is mounted on the support plate. The inner ring limiting module includes an inner ring drive cylinder, a first inner ring connecting plate, a second inner ring connecting plate, an inner ring slider, and an inner ring limiting post. The inner ring drive cylinder is fixed to the frame. The first inner ring connecting plate is connected to the output end of the inner ring drive cylinder. The second inner ring connecting plate is connected to the first inner ring connecting plate. The inner ring slider and the inner ring limiting post are both connected to the second inner ring connecting plate. The inner ring slider is slidably connected to the first linear slide rail. A long strip-shaped first movable groove is provided on the frame. The inner ring limiting post passes through the first movable groove vertically and can move horizontally within the first movable groove.

6. The film-wrapping mechanism as described in claim 5, characterized in that, The outer ring limiting module includes an outer ring driving cylinder, a first outer ring connecting plate, a second outer ring connecting plate, an outer ring slider, and an outer ring limiting post. The outer ring driving cylinder is fixed to the frame. The first outer ring connecting plate is connected to the output end of the outer ring driving cylinder. The second outer ring connecting plate is connected to the first outer ring connecting plate. The outer ring slider and the outer ring limiting post are both connected to the second outer ring connecting plate. The outer ring slider is slidably connected to the first linear slide rail. The inner ring limiting post and the outer ring limiting post are located on the inner and outer sides of the positioning area, respectively. The outer ring limiting post passes through the first movable groove vertically and can move horizontally outside the first movable groove.

7. A film-wrapping mechanism as described in claim 4, characterized in that, The bottom support includes a support column and a support base. One end of the support base is fixed to the frame, and the other end is rotatably connected to one end of the support column. The support column is located below the positioning area.

8. A film-wrapping mechanism as described in claim 4, characterized in that, The top clamping module includes a clamping drive cylinder, a clamping mounting plate, a first connecting rod, a second connecting rod, a third connecting rod, and a clamping column. The clamping drive cylinder and the clamping mounting plate are both fixed on the frame. One end of the first connecting rod is connected to the output end of the clamping drive cylinder, and the other end is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to one end of the third connecting rod, and the other end of the third connecting rod is fixedly connected to one end of the clamping column. A rotating protrusion is provided in the middle of the third connecting rod. A rotating groove is provided at the end of the clamping mounting plate away from the frame. The rotating protrusion is located in the rotating groove and is rotatably connected to the side wall of the rotating groove through a rotating shaft. The clamping column is located above the positioning area.

9. A film-wrapping mechanism as described in claim 4, characterized in that, The active roller module includes an active roller mounting plate, an active roller drive cylinder, a cylinder connecting plate, an active roller slider, a second linear slide rail, a rotary motor, and a rotary roller. The second linear slide rail is fixed to the frame, and the active roller slider is slidably connected to the second linear slide rail. The active roller mounting plate is fixed to the active roller slider. The cylinder connecting plate and the rotary motor are connected to the active roller mounting plate. The active roller drive cylinder is connected to the cylinder connecting plate. One end of the rotary roller passes through the active roller mounting plate and is connected to the output end of the rotary motor. The frame is provided with a long strip-shaped second movable groove. The rotary roller passes through the second movable groove vertically and can move horizontally within the second movable groove.

10. A film-wrapping mechanism as described in claim 1, characterized in that, The film clamping module includes a film clamping support column, a film clamping connecting plate, an advance / retreat drive cylinder, a gripper cylinder, a film cutting gripper, and a film cutting blade. The film clamping support column is fixed on the frame. The advance / retreat drive cylinder is mounted on the film clamping support column through the film clamping connecting plate. The gripper cylinder is connected to the output end of the advance / retreat drive cylinder. The film cutting gripper is connected to the conveying end of the gripper cylinder. The film cutting blade is fixed on the film cutting gripper.

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