A vertical ring winding machine for automatic film changing reels

Abstract

The application discloses a vertical annular winding machine for automatically changing film rolls and relates to the technical field of packaging equipment. The application comprises a lifting frame, the bottom of the lifting frame is provided with a freight table, the top of the freight table is placed with goods, the lifting frame is fixedly installed with a lifting module, the inside of the lifting frame is slidably installed with a rotating work ring, the rotating work ring is drivingly connected with the movable end of the lifting module, the movable end of the rotating work ring is provided with an automatic film changing film seat, and the automatic film changing film seat is used for transferring the film roll between the unloading position and the film changing position by following the rotation of the rotating work ring. The application is accurately matched by four sets of servo mechanisms, each execution action is supported and operated by a specially designed automatic film unloading mechanism, an automatic film sliding positioning mechanism, an automatic film changing film seat and an automatic film changing platform, and the absolute safety, high efficiency, convenience, low cost and humanized operation of the winding operation are ensured.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and specifically to a vertical circular winding machine with automatic film roll changing. Background Technology

[0002] Wrapping machines, also known as wrapping machines, are widely used in industry. Circular wrapping machines are the most common type of wrapping machine. Circular wrapping machines achieve wrapping through specific mechanical movements and controls. As people's requirements for wrapping accuracy, shape, and efficiency have increased, circular wrapping machines have evolved from traditional mechanical types to relay logic control types, and now to microcomputer-controlled circular wrapping machines.

[0003] The vertical circular winding machine is a high-speed, high-efficiency, and high-quality online winding machine. However, the replacement of its consumable film rolls is done manually. Operators need to approach or even enter the working rotation range of the ring, which poses a serious operational safety risk. The labor load of operators who manually perform the film roll loading, threading, and clamping is heavy. At the same time, the time from unloading the roll, starting the film replacement to completing the film replacement is long, resulting in low film replacement efficiency. Therefore, an automatic film roll changing vertical circular winding machine is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the problems of serious operational safety risks, heavy labor load, long film replacement time, and low film replacement efficiency associated with the current method of manually replacing consumable film rolls in a vertical circular winding machine with automatic film roll changing. This invention provides a vertical circular winding machine with automatic film roll changing.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A vertical circular wrapping machine with automatic film roll changing includes a lifting frame, a cargo platform at the bottom of the lifting frame, goods placed on the top of the cargo platform, a lifting module fixedly mounted on the lifting frame, and a rotating working ring slidably mounted inside the lifting frame. The rotating working ring is drivenly connected to the movable end of the lifting module. An automatic film changing seat is provided on the movable end of the rotating working ring. The automatic film changing seat is used to transfer the film roll between the unloading position and the film changing position following the rotation of the rotating working ring, and subsequently wrap the packaging film on the film roll onto the goods. An automatic unloading mechanism is provided on one side of the bottom of the lifting frame. The automatic unloading mechanism is used to unload the automatic film changing seat at the unloading position. The empty film rolls loaded on the platform are unloaded and conveyed to a safe area. An automatic film changing platform is provided on one side of the freight platform. The automatic film changing platform is used to convey new film rolls from the safe area to the film changing position and to hand over the film rolls to the empty automatic film changing platform. An automatic film clamping mechanism and two automatic film sliding positioning mechanisms are provided on one side of the fixed end of the rotating working ring. The automatic film clamping mechanism is used to clamp and fix the film head of the film roll loaded on the automatic film changing platform. The automatic film sliding positioning mechanism is used to position the automatic film changing platform at the unloading position and keep it corresponding to the position of the automatic unloading mechanism. The positions of the two automatic film sliding positioning mechanisms correspond to the positions of the automatic unloading mechanism and the automatic film changing platform, respectively.

[0007] Furthermore, the rotating working ring includes a lifting frame that is slidably installed inside the lifting frame. The lifting frame is driven to be connected to the lifting module. A rotating ring that can rotate is driven to be installed at the bottom of the lifting frame. Lifting pulleys that contact the lifting frame are fixedly installed at the four corners of the lifting frame.

[0008] The automatic membrane changing machine includes a membrane holder frame fixedly installed on one side of the bottom of the rotating ring. A guide tube for receiving the membrane roll is rotatably installed at the bottom of the membrane holder frame. A first transmission motor is fixedly installed inside the membrane holder frame. The output end of the first transmission motor and the top end of the guide tube are driven by the same first synchronous belt.

[0009] The automatic unloading mechanism includes an unloading frame disposed on one side of the bottom of the lifting frame, a tilting frame rotatably mounted on the top of the unloading frame, an unloading cylinder rotatably mounted on one side of the unloading frame, the telescopic end of the unloading cylinder being rotatably connected to the tilting frame, an unloading hollow cylinder frame fixedly mounted on one end of the tilting frame, and an unloading core adapted to the hollow film roll being fixedly mounted on the bottom inner wall of the unloading hollow cylinder frame.

[0010] The automatic film changing platform includes a platform frame disposed on one side of the freight platform. A movable frame is rotatably mounted on the top of the platform frame. A shifting chain motor and a winding table are fixedly mounted on the top of the movable frame. The drive end of the shifting chain motor is drivenly connected to the platform frame. A film roll mounting seat adapted to the film roll is fixedly mounted on one side of the top of the winding table.

[0011] Furthermore, the guide tube includes a tube body rotatably mounted on the bottom of the membrane base frame. Both sides of the bottom end of the tube body are provided with receiving holes. A reset shaft is rotatably mounted inside each receiving hole. A film-locking buckle for squeezing the inner wall of the film roll is fixedly sleeved on each reset shaft. The two film-locking buckles are symmetrically arranged. A warning torsion spring that contacts the inner wall of the tube body is sleeved on each reset shaft.

[0012] Furthermore, a suspension frame is fixedly installed on both sides of the unwinding hollow drum frame, and a fastening claw and a fastening cylinder are rotatably installed on the suspension frame. The two fastening claws are symmetrically arranged and extend into the interior of the unwinding hollow drum frame, and the extension and retraction ends of the two fastening cylinders are rotatably connected to the two fastening claws respectively.

[0013] Furthermore, two conveying rollers and multiple auxiliary rollers are rotatably mounted on the bottom of the film holder frame. A second transmission motor is fixedly mounted on the bottom of the film holder frame. A transmission gear is fixedly sleeved on the top of each conveying roller. The two transmission gears mesh with each other. The top of one of the conveying rollers and the output end of the second transmission motor are driven by the same second synchronous belt. A lifting cylinder is fixedly mounted inside the winding table. A lifting frame is slidably mounted on the top inner wall of the winding table. The lifting frame is fixedly mounted on the telescopic end of the lifting cylinder. Multiple film-winding base tubes are fixedly mounted on the top of the lifting frame. The multiple film-winding base tubes extend to the top of the winding table and are respectively adapted to the conveying rollers and the auxiliary rollers.

[0014] Furthermore, a U-shaped clamping frame is fixedly installed on the top of the winding table facing the cargo, and a film head clamp is fixedly installed on the top of the U-shaped clamping frame.

[0015] Furthermore, the automatic film clamping mechanism includes a film clamping frame fixedly installed on one side of the lifting frame. A rotating fixing frame is fixedly installed at the bottom of the film clamping frame. A first rotating arm and a first rotating cylinder are rotatably installed on the rotating fixing frame. The first rotating cylinder is located above the first rotating arm. The telescopic end of the first rotating cylinder is fixedly connected to the first rotating arm. A second rotating cylinder and a second rotating arm are rotatably installed at the top and bottom of the first rotating arm, respectively. The telescopic end of the second rotating cylinder is fixedly connected to the second rotating arm.

[0016] Furthermore, the automatic sliding film positioning mechanism includes two positioning frames fixedly installed on one side of the lifting frame. A positioning cylinder is fixedly installed at the bottom of each positioning frame. The telescopic ends of each positioning cylinder are vertically downward and fixedly installed with wheel frames. A positioning wheel is rotatably installed at the bottom of each wheel frame. A positioning fork is fixedly installed at the top of the film seat frame. The positioning fork is adapted to the wheel frames and the positioning wheels.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. This invention is completed by four sets of servo mechanisms working in precise coordination. Each action is supported by a specially designed automatic unwinding mechanism, automatic sliding film positioning mechanism, automatic film changing seat, and automatic film changing platform, ensuring absolute safety, efficiency, convenience, low cost, and user-friendly operation of the winding operation.

[0019] 2. When using this invention, operators do not need to enter the equipment to manually change the film, which greatly improves the safety of operation. The film roll is automatically clamped without manual intervention, which greatly reduces the workload. The fully automatic lifting, rotating, film output and film delivery four-axis servo mechanism works in conjunction, which greatly saves film changing time, improves film changing efficiency and saves costs.

[0020] 3. By setting up an automatic sliding film positioning mechanism, the relative position of the wheel frame and the automatic unwinding mechanism remains fixed under normal conditions. When unwinding or changing rolls, the automatic film changing seat is in the unwinding position and the changing position respectively. The two sets of automatic sliding film positioning mechanisms are activated respectively. The positioning cylinder drives the wheel frame to descend until the wheel frame and the positioning wheel are locked inside the positioning fork on the film seat frame for physical positioning. This ensures that the guide tube and the unwinding core or film roll mounting seat are aligned and concentric. The two sets of automatic sliding film positioning mechanisms ensure sufficient accuracy in the unwinding and changing actions.

[0021] 4. This invention, by setting up an automatic film clamping mechanism, enables the automatic film clamping mechanism with an inverted "L"-shaped "guillotine" structure to complete the automatic clamping of the film roll. By pulling the film head, the packaging film is made to adhere tightly to each conveying roller, thereby greatly increasing the coverage area between the conveying roller and the packaging film, increasing the friction during conveying, and enhancing the conveying capacity of the conveying roller. At the same time, the automatic film clamping mechanism keeps the position of the film head locked, so that the rotating ring can carry the automatic film changing seat loaded with the film roll to rotate around the goods, realizing automatic winding. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the elevator frame and the rotating working ring of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the rotating working ring and the automatic membrane changing seat of the present invention;

[0025] Figure 4 This is a three-dimensional structural diagram of the automatic membrane changing device of the present invention;

[0026] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the membrane seat frame of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the tube body of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the automatic unwinding mechanism of the present invention;

[0029] Figure 8 This is a schematic diagram of the internal three-dimensional structure of the unwinding hollow cylinder of the present invention;

[0030] Figure 9 This is a three-dimensional structural diagram of the automatic membrane changing platform of the present invention;

[0031] Figure 10 This is the present invention. Figure 9 Schematic diagram of the structure at point A in the middle;

[0032] Figure 11 This is a first-view three-dimensional structural diagram of the automatic film clamping mechanism of the present invention;

[0033] Figure 12 This is a second-view three-dimensional structural diagram of the automatic film clamping mechanism of the present invention;

[0034] Figure 13 This is a three-dimensional structural diagram of the automatic sliding membrane positioning mechanism of the present invention;

[0035] Reference numerals: 1. Lifting frame; 101. Lifting module; 2. Freight platform; 3. Cargo; 4. Rotating working ring; 401. Lifting frame; 402. Rotating ring; 403. Lifting pulley; 5. Automatic film changing seat; 501. Film seat frame; 502. Guide film tube; 5021. Tube body; 5022. Reset shaft; 5023. Film locking buckle; 5024. Warning torsion spring; 503. First transmission motor; 504. First synchronous belt; 505. Conveyor roller; 506. Second transmission motor; 507. Transmission gear; 508. Second synchronous belt; 509. Auxiliary roller; 510. Positioning fork; 6. Automatic unloading mechanism; 601. Unloading frame; 602. Tilting frame; 603. Unloading cylinder; 604. Unloading hollow cylinder frame 605. Unloading mechanism; 606. Suspension frame; 607. Fastening gripper; 608. Fastening cylinder; 7. Automatic film changing platform; 701. Platform frame; 702. Shifting chain motor; 703. Movable frame; 704. Winding table; 705. Film roll mounting base; 706. Lifting cylinder; 707. Lifting frame; 708. Film winding base tube; 709. U-shaped clamping frame; 710. Film head clamp; 8. Automatic film clamping mechanism; 801. Film clamping frame; 802. Rotating fixing frame; 803. First rotating arm; 804. First rotating cylinder; 805. Second rotating cylinder; 806. Second rotating arm; 9. Automatic film sliding positioning mechanism; 901. Positioning frame; 902. Positioning cylinder; 903. Wheel frame; 904. Positioning wheel. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0038] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0040] like Figures 1 to 13 As shown, a vertical circular winding machine with automatic film roll changing includes a lifting frame 1, as... Figure 1 As shown, a freight platform 2 is installed at the bottom of the lifting frame 1, and goods 3 are placed on top of the freight platform 2, such as... Figure 9 , Figure 10 As shown, specifically, a lifting cylinder 706 is fixedly installed inside the winding table 704, and a lifting frame 707 is slidably installed on the top inner wall of the winding table 704. The lifting frame 707 is fixedly installed on the telescopic end of the lifting cylinder 706. Multiple film-winding base tubes 708 are fixedly installed on the top of the lifting frame 707. The multiple film-winding base tubes 708 extend to the top of the winding table 704 and are respectively adapted to the conveying roller 505 and the auxiliary roller 509. A U-shaped clamping frame 709 is fixedly installed on the side of the top of the winding table 704 facing the cargo 3. A film head clamp 710 is fixedly installed on the top of the U-shaped clamping frame 709.

[0041] More specifically, when using this type of automatic film roll changing vertical circular winding machine, by setting up a film head clamp 710, the new film roll is initially fitted onto the film roll mounting base 705 in the safe area, and the film head on the film roll passes through each winding base tube 708 in a specified manner and is finally clamped on the film head clamp 710, temporarily fixing the film head, so that the film head can be sent to the automatic film changing film base 5 for unwinding later.

[0042] like Figure 2 , Figure 3 As shown, specifically, a lifting module 101 is fixedly installed on the lifting frame 1, and a rotating working ring 4 is slidably installed inside the lifting frame 1. The rotating working ring 4 is driven to be connected to the movable end of the lifting module 101. The rotating working ring 4 includes a lifting frame 401 slidably installed inside the lifting frame 1. The lifting frame 401 is driven to be connected to the lifting module 101. A self-rotating rotating ring 402 is driven to be installed at the bottom of the lifting frame 401. Lifting pulleys 403 that contact the lifting frame 1 are fixedly installed at the four corners of the lifting frame 401.

[0043] An automatic film changing holder 5 is provided on the movable end of the rotating working ring 4. The automatic film changing holder 5 is used to transfer the film roll between the unloading position and the film changing position following the rotation of the rotating working ring 4, and subsequently wraps the packaging film on the film roll onto the goods 3, such as... Figure 4 , Figure 6 As shown, specifically, the automatic film changing machine base 5 includes a film base frame 501 fixedly installed on one side of the bottom of the rotating ring 402. A guide tube 502 for sleeve film roll is rotatably installed at the bottom of the film base frame 501. A first transmission motor 503 is fixedly installed inside the film base frame 501. The output end of the first transmission motor 503 and the top end of the guide tube 502 are driven by the same first synchronous belt 504.

[0044] An automatic unloading mechanism 6 is installed on one side of the bottom of the lifting frame 1. The automatic unloading mechanism 6 is used to unload the empty film roll loaded on the automatic film changing stand 5 at the unloading position and convey it to a safe area. Figure 7 , Figure 8 As shown, specifically, the automatic unwinding mechanism 6 includes an unwinding frame 601 located on one side of the bottom of the lifting frame 1. A tilting frame 602 is rotatably mounted on the top of the unwinding frame 601. An unwinding cylinder 603 is rotatably mounted on one side of the unwinding frame 601. The telescopic end of the unwinding cylinder 603 is rotatably connected to the tilting frame 602. An unwinding hollow cylinder frame 604 is fixedly mounted on one end of the tilting frame 602. An unwinding core 605 adapted to the empty film roll is fixedly mounted on the bottom inner wall of the unwinding hollow cylinder frame 604. Suspension frames 606 are fixedly mounted on both sides of the unwinding hollow cylinder frame 604. Fastening claws 607 and fastening cylinders 608 are rotatably mounted on each suspension frame 606. The two fastening claws 607 are symmetrically arranged and extend into the interior of the unwinding hollow cylinder frame 604. The telescopic ends of the two fastening cylinders 608 are rotatably connected to the two fastening claws 607 respectively.

[0045] In this embodiment, infrared devices, photoelectric detectors, industrial cameras, and other equipment constitute the vision system of this vertical circular winding machine with automatic film roll changing. This system is used to detect the location of the goods 3 and to control the rotating ring 402 to drive the automatic film changing seat 5 between the unloading position and the film changing position. The lifting module 101 can be a common linear actuator in the prior art, such as a linear motor module. It drives the moving part, which is the driving end, to move linearly through the electromagnetic force of the motor stator. Alternatively, it can use mechanisms such as screw thread sleeves, belts and pulleys, chains and sprockets, etc., to control the driving end to move linearly through threaded guidance or meshing. Similarly, the rotating ring 402 replaces the linear actuator with a circumferential actuator. Both the lifting module 101 and the rotating ring 402 preferably use servo motor drives as the power source. In this embodiment, the lifting module 101 and the rotating ring 402 can adopt technical solutions including but not limited to the above, depending on the actual situation.

[0046] More specifically, by setting up an automatic unwinding mechanism 6, when the system detects and prompts that the film roll is used up, the automatic unwinding program is activated upon receiving the equivalent value. The flipping frame 602, originally in the safe zone, is flipped towards the lifting frame 1 to the unwinding position under the drive of the unwinding cylinder 603. The unwinding hollow tube frame 604 and the unwinding core 605 remain vertical. Under the precise drive of the rotary servo motor, the rotating ring 402 drives the automatic film changing holder 5 to move above the automatic unwinding mechanism 6. Under the control of the vision system, the rotating ring 402 slowly returns to its original position, so that the position of the guide tube 502 gradually corresponds to the position of the unwinding hollow tube frame 604. At this time, the automatic film changing holder 5 is in the unwinding position, and the automatic film changing... The film holder 5 is located below the first automatic film positioning mechanism 9. The lifting module 101 drives the rotating working ring 4 and the automatic film changing holder 5 to move downward as a whole until the guide tube 502 carrying the core of the empty film roll is inserted into the unloading hollow cylinder frame 604. The unloading core 605 is inserted into the core. Then the automatic film changing holder 5 is lifted and reset as a whole. The fastening cylinders 608 on both sides drive the fastening claws 607 to clamp the core. When the guide tube 502 is completely separated from the core, the fastening claws 607 release the core. Finally, the unloading cylinder 603 drives the flipping frame 602 to flip and reset towards the safe area. The core is thrown into the hopper under the action of centrifugal force and gravity, completing the automatic unloading of the empty film roll.

[0047] like Figure 5 , Figure 6 As shown, specifically, the guide tube 502 includes a tube body 5021 rotatably mounted on the bottom of the film holder frame 501. Both sides of the bottom end of the tube body 5021 are provided with receiving holes. A reset shaft 5022 is rotatably mounted inside the receiving hole. A film locking buckle 5023 for squeezing the inner wall of the film roll is fixedly sleeved on the reset shaft 5022. The two film locking buckles 5023 are symmetrically arranged. A warning torsion spring 5024 that contacts the inner wall of the tube body 5021 is sleeved on the reset shaft 5022.

[0048] In this embodiment, the locking membrane buckles 5023 are all inverted trapezoidal structures with their inclined surfaces facing downwards.

[0049] More specifically, by setting a locking clip 5023, when the tube 5021 is inserted into the film roll, the locking clip 5023 will rotate upward at a certain angle, so that the locking clip 5023 presses against the inner wall of the roll core, generating sufficient friction to fix the film roll on the guide tube 502. During unwinding, as the guide tube 502 is raised, the friction of the fastening claw 607 against the outer wall of the roll core overcomes the friction of the locking clip 5023 against the inner wall of the roll core, so that the locking clip 5023 is retained in the unwinding hollow tube frame 604, realizing the complete separation of the locking clip 5023 and the tube 5021 from the roll core.

[0050] An automatic film changing platform 7 is installed on one side of the freight platform 2. The automatic film changing platform 7 is used to transport new film rolls from the safe area to the film changing position and to transfer the film rolls to the empty automatic film changing station 5. Figure 9 As shown, specifically, the automatic film changing platform 7 includes a platform frame 701 set on one side of the freight table 2. A movable frame 703 is rotatably mounted on the top of the platform frame 701. A shifting chain motor 702 and a winding table 704 are fixedly mounted on the top of the movable frame 703. The drive end of the shifting chain motor 702 is drivenly connected to the platform frame 701. A film roll mounting seat 705 adapted to the film roll is fixedly mounted on one side of the top of the winding table 704.

[0051] More specifically, by setting up an automatic film changing platform 7, after unloading, the shifting chain motor 702 drives the movable frame 703 to carry the winding table 704 from the safe area to the film changing position. The film roll mounting base 705, loaded with a new film roll, is at the bottom of the rotating ring 402. The rotating ring 402 drives the automatic film changing base 5 to move above the automatic film changing platform 7. Under the control of the vision system and the precise drive of the servo motor, the rotating ring 402 slowly returns to its original position, so that the position of the guide tube 502 gradually corresponds to the position of the film roll mounting base 705. At this time, the automatic film changing platform 702 is fully operational. The automatic film changing machine holder 5 is in the film changing position, and the automatic film changing machine holder 5 is located below the second set of automatic sliding film positioning mechanisms 9. The lifting module 101 drives the rotating working ring 4 and the automatic film changing machine holder 5 to move downward as a whole until the unloaded guide tube 502 is inserted into the core of the new film roll. When the locking buckles 5023 on both sides completely lock the inner wall of the core, the automatic film changing machine holder 5 is lifted and reset as a whole. When the new film roll is completely detached from the film roll mounting seat 705, the winding table 704 rotates to the safe area again to prepare for the next round of roll changing and completes the loading of the new film roll.

[0052] Two automatic film sliding positioning mechanisms 9 are provided on one side of the fixed end of the rotating working ring 4. These mechanisms position the automatic film changing seat 5 at the unwinding position and correspond to the position of the automatic unwinding mechanism 6. The positions of the two automatic film sliding positioning mechanisms 9 correspond to the positions of the automatic unwinding mechanism 6 and the automatic film changing platform 7, respectively. Figure 3 , Figure 13 As shown, specifically, the automatic sliding film positioning mechanism 9 includes two positioning frames 901 fixedly installed on one side of the lifting frame 401. A positioning cylinder 902 is fixedly installed at the bottom of each positioning frame 901. The telescopic ends of the positioning cylinders 902 are vertically downward and fixedly installed with wheel frames 903. A positioning wheel 904 is rotatably installed at the bottom of each wheel frame 903. A positioning fork 510 is fixedly installed at the top of the film seat frame 501. The positioning fork 510 is adapted to the wheel frame 903 and the positioning wheel 904.

[0053] More specifically, by setting up an automatic sliding film positioning mechanism 9, the relative position of the wheel frame 903 and the automatic unwinding mechanism 6 is always fixed under normal conditions. When unwinding or changing rolls, the automatic film changing seat 5 is in the unwinding position and the changing position, respectively. The two sets of automatic sliding film positioning mechanisms 9 are activated, and the positioning cylinder 902 drives the wheel frame 903 to descend until the wheel frame 903 and the positioning wheel 904 are locked inside the positioning fork 510 on the film seat frame 501 for physical positioning. This ensures that the guide tube 502 and the unwinding core 605 or the film roll mounting seat 705 are aligned and concentric. The two sets of automatic sliding film positioning mechanisms 9 ensure that the unwinding and changing actions are performed with sufficient precision.

[0054] like Figure 5 As shown, specifically, two conveying rollers 505 and multiple auxiliary rollers 509 are rotatably mounted on the bottom of the film base frame 501. A second transmission motor 506 is fixedly mounted on the bottom of the film base frame 501. Transmission gears 507 are fixedly sleeved on the top of each of the conveying rollers 505. The two transmission gears 507 mesh with each other. The same second synchronous belt 508 is driven and mounted on the top of one of the conveying rollers 505 and the output end of the second transmission motor 506.

[0055] More specifically, by setting the conveyor rollers 505, the film head of the new film roll is wound around each film base tube 708. When the automatic film changing seat 5 descends to pick up the film, each conveyor roller 505 and auxiliary roller 509 will be inserted into each film base tube 708 simultaneously. When the new film roll is locked by the film locking buckle 5023, the lifting cylinder 706 drives the lifting frame 707 to drive each film base tube 708 to descend and retract into the winding table 704. At this time, the packaging film near the film head will automatically be wound around each conveyor roller 505 and auxiliary roller 509. In the subsequent unwinding and winding, the first transmission motor 503 drives the guide film tube 502 through the first synchronous belt 504, and the second transmission motor 506 drives the conveyor roller 505 through the transmission gear 507 and the second synchronous belt 508, thereby conveying the packaging film for unwinding and completing the automatic handover and conveying of the packaging film.

[0056] An automatic film clamping mechanism 8 is provided on one side of the fixed end of the rotating working ring 4. The automatic film clamping mechanism 8 is used to clamp and fix the film head of the film roll loaded on the automatic film changing machine 5. Figure 3 , Figure 11 , Figure 12As shown, specifically, the automatic film clamping mechanism 8 includes a film clamping frame 801 fixedly installed on one side of the lifting frame 401. A rotating fixing frame 802 is fixedly installed at the bottom of the film clamping frame 801. A first rotating arm 803 and a first rotating cylinder 804 are rotatably installed on the rotating fixing frame 802. The first rotating cylinder 804 is located above the first rotating arm 803. The telescopic end of the first rotating cylinder 804 is fixedly connected to the first rotating arm 803. A second rotating cylinder 805 and a second rotating arm 806 are rotatably installed at the top and bottom of the first rotating arm 803, respectively. The telescopic end of the second rotating cylinder 805 is fixedly connected to the second rotating arm 806.

[0057] More specifically, by setting up an automatic film clamping mechanism 8, when the second set of automatic film sliding positioning mechanisms 9 completes physical positioning, the first rotary cylinder 804 drives the first rotary arm 803 to rotate to a vertical position, and the second rotary cylinder 805 drives the second rotary arm 806 to rotate to a horizontal position. The first rotary arm 803 and the second rotary arm 806 form an inverted "L"-shaped "guillotine" structure. As the automatic film changing seat 5 descends at the film changing position, the bottom end of the first rotary arm 803 moves to one side of the U-shaped clamping frame 709. At this time, the second rotary arm 806 is above the opening of the U-shaped clamping frame 709. When the packaging film near the film head is transferred to the automatic film changing seat 5, the second rotary arm 806 first resets to its original position relative to the first rotary arm 803. Maintaining the same vertical position, the film head clamp 710 is held between the first rotating arm 803 and the second rotating arm 806, so that the film head is automatically removed from the film head clamp 710, completing the automatic clamping of the film roll. Then, the first rotating arm 803 carries the second rotating arm 806 back to the initial horizontal position. By pulling the film head, the packaging film is tightly attached to each conveying roller 505, thereby greatly increasing the coverage area between the conveying roller 505 and the packaging film, increasing the friction during conveying, and enhancing the conveying capacity of the conveying roller 505. At the same time, the automatic film clamping mechanism 8 keeps the position of the film head locked, so that the rotating ring 402 can carry the automatic film changing seat 5 loaded with film rolls to rotate around the goods 3, realizing automatic winding.

[0058] In summary, this vertical circular winding machine with automatic film roll changing is precisely coordinated by four sets of servo mechanisms. Each action is supported by a specially designed automatic unloading mechanism 6, automatic sliding film positioning mechanism 9, automatic film changing seat 5, and automatic film changing platform 7, ensuring absolute safety, efficiency, convenience, low cost, and user-friendly operation of the winding process. Operators do not need to enter the equipment to manually change the film, greatly improving operational safety. The automatic clamping of the film rolls requires no manual intervention, significantly reducing the workload. The fully automatic lifting, rotation, film output, and film delivery four-axis servo mechanisms work together in a coordinated manner, greatly saving film changing time, improving film changing efficiency, and reducing costs.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A vertical ring winding machine for automatic film changing reels, characterized in that, The application relates to a lifting frame (1) provided with a freight platform (2) at the bottom, the top of the freight platform (2) being provided with goods (3), a lifting module (101) being fixedly installed on the lifting frame (1), a rotating work ring (4) being slidingly installed in the lifting frame (1), the rotating work ring (4) being drivingly connected with the movable end of the lifting module (101), an automatic film changing film seat (5) being arranged on the movable end of the rotating work ring (4), the automatic film changing film seat (5) being used for transferring a film roll between a roll unloading position and a film changing position in a rotating manner, and the packaging film on the film roll being wound on the goods (3) in the subsequent process, an automatic roll unloading mechanism (6) being arranged on one side of the bottom of the lifting frame (1), the automatic roll unloading mechanism (6) being used for unloading the empty film roll loaded on the automatic film changing film seat (5) at the roll unloading position and conveying the empty film roll to a safe area, an automatic film changing platform (7) being arranged on one side of the freight platform (2), the automatic film changing platform (7) being used for conveying a new film roll from the safe area to the film changing position and performing film roll exchange with the empty automatic film changing film seat (5), an automatic film clamping mechanism (8) and two automatic film sliding positioning mechanisms (9) being arranged on one side of the fixed end of the rotating work ring (4), the automatic film clamping mechanism (8) being used for clamping and fixing the film head of the film roll loaded on the automatic film changing film seat (5), and the automatic film sliding positioning mechanisms (9) being used for positioning the automatic film changing film seat (5) on the roll unloading position and keeping the position corresponding to the automatic roll unloading mechanism (6), the positions of the two automatic film sliding positioning mechanisms (9) corresponding to the positions of the automatic roll unloading mechanism (6) and the automatic film changing platform (7) respectively.

2. The vertical ring winding machine for automatically changing the film roll according to claim 1, wherein The rotating work ring (4) comprises a lifting frame (401) slidingly installed in the lifting frame (1), the lifting frame (401) being drivingly connected with the lifting module (101), and a rotatable rotating ring (402) being drivingly installed at the bottom of the lifting frame (401), lifting pulleys (403) being fixedly installed at four corners of the lifting frame (401) and being in contact with the lifting frame (1); The automatic film changing film seat (5) comprises a film seat frame (501) fixedly installed on one side of the bottom of the rotating ring (402), a film guide circular pipe (502) being rotatably installed at the bottom of the film seat frame (501) and being used for sleeving a film roll, a first transmission motor (503) being fixedly installed in the film seat frame (501), and a same first synchronous belt (504) being drivingly installed at the top end of the film guide circular pipe (502) and being connected with the output end of the first transmission motor (503). The automatic unloading mechanism (6) comprises an unloading frame (601) arranged at one side of the bottom of the lifting frame (1), a turnover frame (602) is rotatably arranged at the top end of the unloading frame (601), an unloading cylinder (603) is rotatably arranged at one side of the unloading frame (601), the telescopic end of the unloading cylinder (603) is rotatably connected with the turnover frame (602), an unloading hollow cylinder frame (604) is fixedly arranged at one end of the turnover frame (602), and an unloading machine core (605) matched with the empty film roll is fixedly arranged on the inner wall of the bottom of the unloading hollow cylinder frame (604). The automatic film changing platform (7) comprises a platform frame (701) arranged at one side of the freight table (2), a movable frame (703) is rotatably arranged at the top of the platform frame (701), a transposition winding chain motor (702) and a winding table (704) are fixedly arranged at the top of the movable frame (703), the driving end of the transposition winding chain motor (702) is drivingly connected with the platform frame (701), and a film roll mounting seat (705) matched with the film roll is fixedly arranged at one side of the top of the winding table (704).

3. The vertical ring winding machine for automatically changing the film roll according to claim 2, wherein The film guide round pipe (502) comprises a pipe body (5021) rotatably arranged at the bottom of the film seat frame (501), receiving holes are formed at both sides of the bottom end of the pipe body (5021), reset shafts (5022) are rotatably arranged in the receiving holes, locking film buckles (5023) for extruding the inner wall of the film roll are fixedly sleeved on the reset shafts (5022), the two locking film buckles (5023) are symmetrically arranged, and warning torsion springs (5024) in contact with the inner wall of the pipe body (5021) are sleeved on the reset shafts (5022).

4. The vertical ring winding machine for automatically changing the film roll according to claim 2, wherein The unloading hollow cylinder frame (604) is fixedly provided with a hanging frame (606) at both sides, a fastening clamp jaw (607) and a fastening cylinder (608) are rotatably arranged on the hanging frame (606), the two fastening clamp jaws (607) are symmetrically arranged and extend into the unloading hollow cylinder frame (604), and the telescopic ends of the two fastening cylinders (608) are rotatably connected with the two fastening clamp jaws (607) respectively.

5. The vertical ring winding machine for automatically changing the film roll according to claim 2, wherein The bottom of the film seat frame (501) is rotatably provided with two conveying rollers (505) and a plurality of auxiliary rollers (509), and the bottom of the film seat frame (501) is fixedly provided with a second transmission motor (506). The top of each of the conveying rollers (505) is fixedly provided with a transmission gear (507), and the two transmission gears (507) are engaged with each other. The top of one of the conveying rollers (505) and the output end of the second transmission motor (506) are drivingly provided with a same second synchronous belt (508). The inside of the winding table (704) is fixedly provided with a lifting cylinder (706), and the top inner wall of the winding table (704) is slidingly provided with a lifting frame (707). The lifting frame (707) is fixedly provided on the telescopic end of the lifting cylinder (706), and the top of the lifting frame (707) is fixedly provided with a plurality of film winding base pipes (708). The plurality of film winding base pipes (708) extend to the top of the winding table (704) and are respectively matched with the conveying rollers (505) and the auxiliary rollers (509).

6. The vertical ring winding machine for automatically changing the film roll according to claim 2, wherein The top of the winding table (704) is fixedly provided with a U-shaped clamping frame (709) on the side facing the goods (3), and the top of the U-shaped clamping frame (709) is fixedly provided with a film head clamp (710).

7. The vertical ring winding machine for automatically changing the film roll according to claim 2, wherein The automatic film clamping mechanism (8) comprises a film clamping frame (801) fixedly provided on one side of the lifting frame (401). The bottom of the film clamping frame (801) is fixedly provided with a rotating fixing frame (802). The rotating fixing frame (802) is rotatably provided with a first rotating arm (803) and a first rotating cylinder (804). The first rotating cylinder (804) is located above the first rotating arm (803). The telescopic end of the first rotating cylinder (804) is fixedly connected with the first rotating arm (803). The top and bottom of the first rotating arm (803) are rotatably provided with a second rotating cylinder (805) and a second rotating arm (806), respectively. The telescopic end of the second rotating cylinder (805) is fixedly connected with the second rotating arm (806).

8. The vertical ring winding machine of claim 2, wherein, The automatic film clamping mechanism (8) comprises a film clamping frame (801) fixedly provided on one side of the lifting frame (401). The bottom of the film clamping frame (801) is fixedly provided with a rotating fixing frame (802). The rotating fixing frame (802) is rotatably provided with a first rotating arm (803) and a first rotating cylinder (804). The first rotating cylinder (804) is located above the first rotating arm (803). The telescopic end of the first rotating cylinder (804) is fixedly connected with the first rotating arm (803). The top and bottom of the first rotating arm (803) are rotatably provided with a second rotating cylinder (805) and a second rotating arm (806), respectively. The telescopic end of the second rotating cylinder (805) is fixedly connected with the second rotating arm (806). The automatic film clamping mechanism (8) comprises a film clamping frame (801) fixedly provided on one side of the lifting frame (401). The bottom of the film clamping frame (801) is fixedly provided with a rotating fixing frame (802). The rotating fixing frame (802) is rotatably provided with a first rotating arm (803) and a first rotating cylinder (804). The first rotating cylinder (804) is located above the first rotating arm (803). The telescopic end of the first rotating cylinder (804) is fixedly connected with the first rotating arm (803). The top and bottom of the first rotating arm (803) are rotatably provided with a second rotating cylinder (805) and a second rotating arm (806), respectively. The telescopic end of the second rotating cylinder (805) is fixedly connected with the second rotating arm (806).

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