Constant force film take-up on-line cantilever winding machine

Abstract

The application discloses a constant force film outlet online type cantilever winding machine and relates to the technical field of winding machines.The application comprises a gantry lower frame, the top of the gantry lower frame is fixedly provided with a gantry upper frame, the top of the gantry upper frame is provided with a rotary rocker arm mechanism, the bottom of the rotary rocker arm mechanism is fixedly provided with a vertically arranged lifting column mechanism on one side, the lifting column mechanism is slidably provided with a constant force film outlet device on one side, the inside of the gantry lower frame is provided with a film cutting device and a packaging table, and the top of the packaging table is provided with goods to be packaged.The application is provided with the rotary rocker arm mechanism, the lifting column mechanism and the constant force film outlet device, so that the constant force film outlet device drives the packaging film to automatically wrap the goods to be packaged, the film cutting device cuts the packaging film, and the automatic packaging and automatic film cutting of the goods to be packaged are completed, the whole packaging process is high in automation degree, low in manual operation, rapid in packaging processing, and tight and uniform in wrapping.

Description

Technical Field

[0001] This invention relates to the field of winding machine technology, and specifically to a constant force film output online cantilever winding machine. Background Technology

[0002] The market for wrapping machines is receiving increasing attention in actual industrial production. The development trend of the wrapping machine market includes how to save wrapping time, reduce packaging costs, and improve equipment compatibility. Therefore, the current outer packaging market mainly pursues modular, simple, and highly efficient packaging wrapping equipment. At the same time, with the rapid development of the packaging market, customers' demands for packaging effects are becoming more diversified.

[0003] Most packaging film wrapping machines on the market currently suffer from varying degrees of inconsistent film clamping force due to differences in the length and width of goods and the diameter of the wrapping rotation. This can lead to excessive clamping force during the wrapping process. When the goods are light, the inconsistent clamping force applied by the wrapping film to the surface of the goods can easily cause the goods to deviate or even be damaged during the packaging process. To address this issue, a constant force film output online cantilever wrapping machine is proposed. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that most packaging film wrapping machines on the market currently have inconsistent film clamping force on goods due to differences in the length and width of the goods and the different rotation and winding diameters. This causes the wrapping machine to have excessive clamping force during the wrapping process. When the goods are light, the inconsistent clamping force applied by the wrapping film to the surface of the goods can easily cause the goods to deviate or even be damaged during the packaging process. This invention provides a constant force film output online cantilever wrapping machine.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: A constant-force film-discharge online cantilever winding machine includes a lower gantry frame, an upper gantry frame fixedly installed on the top of the lower gantry frame, a rotating rocker arm mechanism on the top of the upper gantry frame, a vertically arranged lifting column mechanism fixedly installed on one side of the bottom of the rotating rocker arm mechanism, a constant-force film-discharge device slidably installed on one side of the lifting column mechanism, a film-cutting device and a packaging table inside the lower gantry frame, and goods to be packaged placed on the top of the packaging table; The rotating rocker arm mechanism is used to drive the lifting column mechanism and the constant force film dispensing device to rotate around the goods to be packaged and wrap the packaging film. The rotating rocker arm mechanism includes a rocker arm motor, a first transmission steering box and a suspension box, which are fixedly installed on the inner wall of the top of the gantry frame. The output end of the rocker arm motor is driven to be connected to the input end of the first transmission steering box. A rocker arm gear is rotatably installed at the bottom of the suspension box. A transmission shaft is fixedly installed at the output end of the first transmission steering box, which faces vertically downward. A transmission gear that meshes with the rocker arm gear is fixedly sleeved at the bottom of the transmission shaft. A horizontal rocker arm is fixedly installed at the bottom of the rocker arm gear. An upper mounting plate is fixedly installed at the bottom of one end of the horizontal rocker arm. The lifting column mechanism is used to drive the constant force film dispensing device to move up and down around the goods to be packaged. The lifting column mechanism includes a lower mounting plate fixedly installed at the bottom of the upper mounting plate. A vertically arranged column main frame is fixedly installed at the bottom of the lower mounting plate. A lifting motor and a second transmission steering box are fixedly installed on one side of the top of the column main frame. The output end of the lifting motor is drivenly connected to the input end of the second transmission steering box. A horizontally arranged upper chain shaft is rotatably installed at the top of the column main frame. One end of the upper chain shaft is drivenly connected to the output end of the second transmission steering box. An upper sprocket is fixedly sleeved on the upper chain shaft. A horizontally arranged lower chain shaft is rotatably installed at the bottom of the column main frame. A lower sprocket corresponding to the position of the upper sprocket is fixedly sleeved on the lower chain shaft. The same lifting chain meshes on the upper sprocket and the lower sprocket. The constant-force film dispensing device is used to dispense packaging film around the goods to be packaged for constant-force packaging. The device includes a film dispensing frame. Two symmetrically distributed chain suspension frames are fixedly installed from top to bottom on one side of the film dispensing frame. The two ends of the lifting chain are respectively fixedly installed on the opposite sides of the two chain suspension frames. A vertically arranged film dispensing motor is fixedly installed on one side of the film dispensing frame. Two vertically arranged film dispensing rollers are rotatably installed on the other side of the film dispensing frame. The top ends of both film dispensing rollers extend to the top of the film dispensing frame. The output shaft of the film dispensing motor extends to the top of the film dispensing frame. The same synchronous pulley set is fitted onto the top of the top of the two film-discharging rollers. A sensing device is provided on one side of the film-discharging box frame. A film guide cover is rotatably installed on the other side of the film-discharging box frame. Four vertically arranged pressure rollers are rotatably installed on the side of the film guide cover facing the film-discharging box frame. A film-feeding seat is fixedly installed on one side of the bottom of the film-discharging box frame. A vertically arranged film-feeding shaft is rotatably installed on the top of the film-feeding seat. An inner support head is fixedly installed on the top of the film-feeding shaft. The same cylindrical packaging film is fitted onto the film-discharging box frame and the inner support head. A transmission cover plate is fixedly installed on the top of the film-discharging box frame. The synchronous pulley set is located inside the transmission cover plate. The film-cutting device is used to clamp the movable end of the tubular packaging film and cut the tubular packaging film after winding. The film-cutting device includes a film-cutting frame disposed inside the lower frame of the gantry. A clamping claw frame is fixedly installed on the top of the film-cutting frame facing the goods to be packaged. Two symmetrically arranged clamping claw hydraulic push rods are rotatably installed on the same side of the clamping claw frame. The telescopic ends of the clamping claw hydraulic push rods are rotatably installed with film-clamping claws. The two film-clamping claws are symmetrically arranged and slidably installed on one side of the clamping claw frame. A directional electric push rod and a directional arm are rotatably installed on the top of the film-cutting frame. The output end of the directional electric push rod is rotatably installed on one side of the directional arm. A horizontally arranged electric telescopic slide is fixedly installed at one end of the directional arm. The telescopic end of the electric telescopic slide is fixedly installed with the film-cutting machine.

[0006] Furthermore, the sensing device includes a pressure measuring roller vertically disposed on the side of the film outlet frame opposite to the chain suspension frame. A sliding rod is rotatably mounted at both the top and bottom of the pressure measuring roller. Sliding holes are provided at both the top and bottom of the film outlet frame. Two sliding rods are slidably installed inside the two sliding holes respectively. A reset frame is fixedly mounted on the top of the film outlet frame. A reset pin is fixedly mounted on the side wall of the upper sliding rod. The reset pin is slidably mounted on the top of the reset frame. A reset spring is movably sleeved on the constant force film outlet device's adjusting electric push rod. One end of the reset spring is in contact with the side wall of the reset frame. A sensing slide is slidably mounted on the top of the film outlet frame. The upper sliding rod is fixedly connected to the sensing slide. A horizontally disposed constant force Hall sensor is fixedly mounted on one side of the sensing slide. The sensing end of the constant force Hall sensor is in contact with the inner wall of one side of the transmission cover plate.

[0007] Furthermore, spring-loaded locks are fixedly installed on the top and bottom sides of the membrane guide cover, which are opposite to the membrane outlet frame, and lock holes adapted to the spring-loaded locks are opened on the top and bottom of the membrane outlet frame.

[0008] Furthermore, a cargo photoelectric detector is fixedly installed on one inner wall of the guide film cover, and a detection hole corresponding to the position of the cargo photoelectric detector is opened on the side wall of the guide film cover.

[0009] Furthermore, a plurality of symmetrically distributed guide sliders are fixedly installed on the side of the film outlet box away from the guide film cover plate, and vertically arranged linear guide rails are fixedly installed on both sides of the main column frame, with the plurality of guide sliders slidably installed on the two linear guide rails respectively.

[0010] Furthermore, the packaging platform is used to accurately position and reposition the goods to be packaged. The packaging platform includes an electric rotary table set inside the lower frame of the gantry. The top of the electric rotary table is driven to install a support tray coaxial with the rocker arm gear. The support tray has four evenly distributed clearance grooves on its periphery. The bottom of the support tray is provided with four positioning devices for clamping and positioning the goods. The positioning device includes an electric slide rail fixedly installed at the bottom of the support tray. Four electric slide rails are respectively located at the bottom of four clearance slots. An electric positioning slider is internally driven and installed in the electric slide rail. A telescopic frame is fixedly installed on one side of the electric positioning slider. A vertically arranged small electric push rod is fixedly installed on one side of the telescopic frame. The fixed end and telescopic end of the small electric push rod are fixedly connected to the fixed end and telescopic end of the telescopic frame, respectively. A positioning claw is slidably installed on the top of the telescopic end of the telescopic frame. A horizontally arranged positioning Hall sensor is fixedly installed on the top of the telescopic end of the telescopic frame. The sensing end of the positioning Hall sensor is in contact with the side wall of the positioning claw.

[0011] Furthermore, the side of the positioning claw away from the positioning Hall sensor is rotatably equipped with multiple horizontally arranged lifting pulleys from top to bottom.

[0012] Furthermore, horizontally arranged dust suction plates are fixedly installed on both sides of the top of the electric slide rail, and connecting air pipes are fixedly installed on the side walls of the dust suction plates.

[0013] Furthermore, a touch screen controller is fixedly installed on one side of the lower frame of the gantry.

[0014] The beneficial effects of this invention are as follows: 1. This invention, by setting up a rotating rocker arm mechanism, a lifting column mechanism and a constant force film dispensing device, enables the constant force film dispensing device to drive the packaging film to automatically wrap the goods to be packaged, and the heat-cutting film device controls the heat-cutting film machine to cut the packaging film, thus completing the automatic packaging and automatic film cutting of the goods to be packaged. The entire packaging process has a high degree of automation, requires less manual operation, and the packaging process is fast and the wrapping is tight and uniform. 2. This invention, by setting up a sensing device, determines the magnitude of the wrapping force applied to the goods by the packaging film by monitoring the pressure sensed by the constant force Hall sensor. It controls the output power of the lifting motor and the film dispensing motor to perform adaptive speed adjustment, so that the up-and-down movement speed of the constant force film dispensing device and the film dispensing speed are adjusted in real time according to the magnitude of the wrapping force. This keeps the wrapping force of the packaging film on the goods to be packaged in a relatively constant state, achieving the effect of constant force film dispensing. This realizes constant force wrapping of the goods to be packaged, improves the packaging effect, and meets customer needs. 3. This invention, by setting spring-loaded locking mechanisms, allows the guide film cover to be closed directly after each replacement of the tubular packaging film. The locking rods of the two spring-loaded locking mechanisms on one side of the guide film cover will spring directly into the two locking holes, locking the guide film cover to one side of the film outlet frame. This ensures that the four internal pressure rollers can press the packaging film tightly, preventing the guide film cover from loosening during the high-speed rotation of the constant force film outlet device and during film outlet. At the same time, when it is necessary to open the guide film cover, simply press down the locking rods of the two spring-loaded locking mechanisms. The operation is simple and convenient. 4. This invention uses a cargo photoelectric detector so that when the detector senses cargo to be packaged, the packaging film wraps the cargo. When the constant force film feeding device finishes wrapping the cargo from bottom to top, it moves to the top of the cargo. At this point, the cargo photoelectric detector can no longer sense the cargo, so it controls the constant force film feeding device to start descending and wrapping to the film cutting position, so that the film cutting device can automatically cut the film, completing the single double-stroke automatic packaging. 5. By setting guide sliders, the present invention enables multiple guide sliders on one side of the film outlet frame to slide up and down synchronously on the linear guide rails on both sides of the main frame of the column when the lifting motor drives the upper sprocket to move up and down, thereby driving the constant force film outlet device to move up and down and wind. This allows the sliding cooperation between the guide sliders and the linear guide rails to limit and control the vertical movement trajectory of the constant force film outlet device, preventing the constant force film outlet device from swaying with the lifting chain during up and down movement and circular motion. 6. By setting up a packaging platform, precise positioning of the goods to be packaged can be achieved, preventing displacement during the packaging process and facilitating subsequent constant-force film dispensing and packaging. Simultaneously, when the positioning claw contacts and clamps the bottom of the goods, the positioning Hall sensor detects the reverse pressure on the claw to prevent excessive pressure from the claws, which could damage the outer packaging. 7. By setting up lifting pulleys, when the constant force film dispensing device descends along the lifting column mechanism and performs spiral packaging on the goods to be packaged, if the constant force film dispensing device is about to move to the bottom of the goods to be packaged, the small electric push rod will drive the positioning claw to descend to the bottom of the pallet to prevent obstruction of the packaging process at the bottom of the goods to be packaged. The lifting pulley can replace the positioning claw in contacting the outer packaging of the goods to be packaged, thereby reducing the frictional resistance generated by the sliding of the positioning claw. 8. By setting up dust suction baffles, before packaging the goods to be packaged, a high-powered dust collection device can be connected to each connecting air pipe through multiple pipes. This allows each dust suction baffle to vacuum the inside of each electric slide rail from both sides, preventing dust and other contaminants from the goods during handling from falling into the electric slide rail and affecting the operation of the electric positioning slider. 9. This invention, by setting up a touch screen controller, allows staff to adjust the detection value of the constant force Hall sensor in real time according to the different categories of goods to be packaged. The analog output is sent to the PCB control board, thereby adjusting parameters such as the rotation speed of the rotating rocker arm mechanism, the lifting speed of the constant force film dispensing device, and the film dispensing speed of the constant force film dispensing device in real time. This allows for the adjustment of parameters such as the actual wrapping speed and the tightness of the packaging film according to the different goods to be packaged. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the cooperation between the lower frame and the upper frame of the gantry in this invention; Figure 3 This is a three-dimensional structural diagram of the top of the rotating rocker arm mechanism of the present invention; Figure 4 This is a three-dimensional structural diagram of the bottom of the rotating rocker arm mechanism of the present invention; Figure 5 This is a three-dimensional structural diagram of the lifting column mechanism of the present invention; Figure 6 This is a schematic diagram of the internal three-dimensional structure of the main frame of the column of the present invention; Figure 7 This is a three-dimensional structural schematic diagram of the constant force film outlet device of the present invention; Figure 8 This is a three-dimensional structural diagram of the guide film cover plate of the present invention in the open state; Figure 9 This is a first-view three-dimensional structural diagram of the internal structure of the film-exit box frame of the present invention; Figure 10 This is a two-dimensional structural diagram of the internal structure of the film outlet frame of the present invention from a second perspective; Figure 11 This is the present invention. Figure 10 Schematic diagram of the structure at point A in the middle; Figure 12 This is a first-view three-dimensional structural diagram of the film-cutting device of the present invention; Figure 13 This is a second-view perspective three-dimensional structural diagram of the film-cutting device of the present invention; Figure 14 This is a three-dimensional structural diagram of the packaging platform of the present invention; Figure 15 This is a three-dimensional structural diagram of the positioning device of the present invention; Figure 16 This is a three-dimensional structural diagram of the telescopic frame and the small electric push rod of the present invention. Reference numerals: 1. Lower frame of the gantry; 2. Upper frame of the gantry; 3. Rotary rocker arm mechanism; 301. Rocker arm motor; 302. First transmission steering box; 303. Suspension box; 304. Rocker arm gear; 305. Drive shaft; 306. Drive gear; 307. Horizontal rocker arm; 308. Upper mounting plate; 4. Lifting column mechanism; 401. Lower mounting plate; 402. Main frame of the column; 403. Lifting motor; 404. Second transmission steering box; 405. Upper sprocket shaft; 406. Upper sprocket. 407. Lower sprocket shaft; 408. Lower sprocket; 409. Lifting chain; 410. Linear guide rail; 5. Constant force film dispensing device; 501. Film dispensing box frame; 502. Chain suspension frame; 503. Film dispensing motor; 504. Film dispensing roller; 505. Synchronous belt pulley set; 506. Sensing device; 5061. Pressure measuring roller; 5062. Slide rod; 5063. Slide hole; 5064. Reset frame; 5065. Reset pin; 5066. Reset spring; 5067. Sensing slide; 5068. 507. Constant force Hall sensor; 508. Film guide cover plate; 509. Film pressing roller; 510. Film feeding seat; 511. Film feeding shaft; 512. Inner support head; 513. Tubular packaging film; 514. Transmission cover plate; 515. Spring lock; 516. Cargo photoelectric detector; 607. Guide slider; 608. Film cutting device; 609. Film cutting frame; 600. Claw holder; 601. Claw hydraulic push rod; 602. Film clamping claw; 603. Orientation electric push rod; 604. Orientation arm; 605. Electric... 608. Telescopic slide table; 7. Film cutting machine; 8. Packaging table; 9. Electric rotary table; 10. Pallet; 11. Leaving groove; 12. Positioning device; 13. Electric slide rail; 14. Electric positioning slider; 15. Telescopic frame; 16. Small electric push rod; 27. Positioning claw; 38. Positioning Hall sensor; 49. Lifting pulley; 5048. Dust suction fan; 6049. Connecting air duct; 701. Goods to be packaged; 8. Touch screen controller. Detailed Implementation

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] like Figures 1 to 16 As shown, a constant-force online cantilever winding machine includes a gantry lower frame 1, as... Figure 1 As shown, the top of the lower frame 1 of the gantry is fixedly installed with the upper frame 2 of the gantry. The top of the upper frame 2 of the gantry is provided with a rotating rocker arm mechanism 3. The bottom side of the rotating rocker arm mechanism 3 is fixedly installed with a vertically arranged lifting column mechanism 4. The side of the lifting column mechanism 4 is slidably installed with a constant force film dispensing device 5. The interior of the lower frame 1 of the gantry is provided with a film cutting device 6 and a packaging table 7. The top of the packaging table 7 is placed with goods 8 to be packaged. The rotating rocker arm mechanism 3 drives the lifting column mechanism 4 and the constant force film dispensing device 5 to rotate around the goods to be packaged 8 and wrap the packaging film, such as Figure 3 As shown, the rotating rocker arm mechanism 3 includes a rocker arm motor 301, a first transmission steering box 302, and a suspension box 303, all fixedly mounted on the inner wall of the top of the gantry upper frame 2. The output end of the rocker arm motor 301 is drivenly connected to the input end of the first transmission steering box 302. A rocker arm gear 304 is rotatably mounted on the bottom of the suspension box 303. Figure 4 As shown, the output end of the first transmission steering box 302 is vertically downward and fixedly mounted with a transmission shaft 305. The bottom end of the transmission shaft 305 is fixedly sleeved with a transmission gear 306 that meshes with the rocker arm gear 304. A horizontal rocker arm 307 is fixedly mounted at the bottom of the rocker arm gear 304. An upper mounting plate 308 is fixedly mounted at the bottom of one end of the horizontal rocker arm 307. The lifting column mechanism 4 is used to drive the constant force film dispensing device 5 to move up and down around the goods to be packaged 8, such as... Figure 5As shown, the lifting column mechanism 4 includes a lower mounting plate 401 fixedly installed at the bottom of the upper mounting plate 308. A vertically arranged column main frame 402 is fixedly installed at the bottom of the lower mounting plate 401. A lifting motor 403 and a second transmission steering box 404 are fixedly installed on one side of the top of the column main frame 402. The output end of the lifting motor 403 is drivenly connected to the input end of the second transmission steering box 404. Figure 6 As shown, a horizontally arranged upper chain shaft 405 is rotatably mounted on the top of the main column frame 402. One end of the upper chain shaft 405 is drivenly connected to the output end of the second transmission steering box 404. An upper sprocket 406 is fixedly sleeved on the upper chain shaft 405. A horizontally arranged lower chain shaft 407 is rotatably mounted on the bottom of the main column frame 402. A lower sprocket 408 corresponding to the position of the upper sprocket 406 is fixedly sleeved on the lower chain shaft 407. Figure 9 As shown, the same lifting chain 409 is engaged on the upper sprocket 406 and the lower sprocket 408; The constant-force film output device 5 is used to output packaging film around the goods to be packaged 8 for constant-force packaging, such as... Figure 7 As shown, the constant force film dispensing device 5 includes a film dispensing box frame 501, such as... Figure 9 As shown, two symmetrically distributed chain suspension frames 502 are fixedly installed from top to bottom on one side of the film outlet frame 501. The two ends of the lifting chain 409 are respectively fixedly installed on the opposite sides of the two chain suspension frames 502. A vertically arranged film outlet motor 503 is fixedly installed on one side of the film outlet frame 501. In this embodiment, both the lifting motor 403 and the film outlet motor 503 are servo motors. Figure 8 As shown, two vertically arranged film-exit rollers 504 are rotatably mounted on the other side of the film-exit box frame 501. The top ends of both film-exit rollers 504 extend to the top of the film-exit box frame 501, and the output shaft of the film-exit motor 503 extends to the top of the film-exit box frame 501. Figure 10 As shown, the same synchronous pulley set 505 is sleeved on the top end of the output shaft of the film-exiting motor 503 and the top ends of the two film-exiting rollers 504, as... Figure 9 As shown, a sensing device 506 is provided on one side of the film dispensing box 501. In this embodiment, an encoder is provided at the output end of the rocker arm motor 301. The control circuits of the rocker arm motor 301, the lifting motor 403, and the film dispensing motor 503 are integrated on a PCB control board. Based on the number of rotations of the horizontal rocker arm 307 and the analog signal fed back by the sensing device 506, the output speed of the packaging film is controlled in real time. Figure 7 As shown, a guide film cover 507 is rotatably mounted on the other side of the film outlet frame 501, as... Figure 8As shown, four vertically arranged pressure rollers 508 are rotatably mounted on the side of the film guide cover 507 facing the film outlet frame 501. A film feeding seat 509 is fixedly mounted on the bottom side of the film outlet frame 501. A vertically arranged film feeding shaft 510 is rotatably mounted on the top of the film feeding seat 509. An inner support head 511 is fixedly mounted on the top of the film feeding shaft 510. Figure 7 As shown, the same cylindrical packaging film 512 is sleeved on the film outlet frame 501 and the inner support head 511. A transmission cover plate 513 is fixedly installed on the top of the film outlet frame 501, and the synchronous pulley set 505 is located inside the transmission cover plate 513. The film-cutting device 6 is used to clamp the movable end of the tubular packaging film 512 and cut the tubular packaging film 512 after winding, such as... Figure 12 , Figure 13As shown, the film cutting device 6 includes a film cutting frame 601 disposed inside the lower frame 1 of the gantry. A claw frame 602 is fixedly installed on the top of the film cutting frame 601 facing the goods 8 to be packaged. Two symmetrically arranged claw hydraulic push rods 603 are rotatably installed on the same side of the claw frame 602. A film clamping claw 604 is rotatably installed at the telescopic end of each claw hydraulic push rod 603. The two film clamping claws 604 are symmetrically arranged and slidably installed on one side of the claw frame 602. A directional electric push rod 605 and a directional arm 606 are rotatably installed on the top of the film cutting frame 601. The output end of the directional electric push rod 605 is rotatably installed on one side of the directional arm 606. A horizontally arranged electric telescopic slide 607 is fixedly installed at one end of the directional arm 606. A film cutting machine 608 is fixedly installed at the telescopic end of the electric telescopic slide 607.Specifically, when using this constant-force online cantilever wrapping machine, first, the tubular packaging film 512 is fitted onto the inner support head 511 and the film feeding shaft 510. Then, the guide film cover 507 is opened, and the movable end of the tubular packaging film 512 is moved to one side of the two film feeding rollers 504. Then, the guide film cover 507 is closed, so that the four pressure rollers 508 and the film feeding rollers 504 are staggered, thereby stretching the packaging film taut on the two film feeding rollers 504. The movable end of the packaging film passes through the seam between the film feeding box frame 501 and the guide film cover 507 and extends to the outside. The film cutting device 6 is started, so that the liquid in the claws on both sides... The push rod 603 retracts, causing the two clamping jaws 604 to open. The worker places one end of the packaging film between the two clamping jaws 604. The hydraulic push rod 603 drives the clamping jaws 604 to reset and clamp one end of the packaging film. At this time, the goods to be packaged 8 are transported to the packaging table 7 by the front-end station / AGV equipment. The rotating rocker arm mechanism 3 starts, and the rocker arm motor 301 drives the transmission shaft 305 to rotate through the first transmission steering box 302. In turn, the horizontal rocker arm 307 is driven to rotate on top of the goods to be packaged 8 through the meshing rocker arm gear 304. 7. The lifting column mechanism 4 drives the constant force film dispensing device 5 to move in a circular motion around the goods to be packaged 8, causing the packaging film to unfold and wrap around the goods to be packaged 8. At the same time, the lifting column mechanism 4 is activated, and the lifting motor 403 drives the upper chain shaft 405 to rotate through the second transmission steering box 404. This drives the lifting chain 409 to start moving in the vertical direction through the upper sprocket 406. This, in turn, drives the entire constant force film dispensing device 5 to move up and down through the chain suspension bracket 502 connected to both ends of the lifting chain 409. This allows the constant force film dispensing device 5 to perform both circular motion and spiral lifting. This allows the packaging film to automatically wrap the goods 8 to be packaged at the designated location. Finally, the constant-force film-ejection device 5 descends to one side of the heat-cutting machine 608. The directional electric push rod 605 and the electric telescopic slide 607 work together to drive the heat-cutting machine 608 to cut the packaging film using high temperature, completing the automatic packaging and cutting of the goods 8. The back-end station / AGV equipment then ships the goods 8, and the next item is sent to the packaging station for the next round of packaging. The entire packaging process is highly automated, requires minimal manual operation, and results in rapid, tight, and uniform packaging.

[0021] like Figure 10 As shown, the sensing device 506 includes a pressure measuring roller 5061 vertically arranged on the side of the film outlet frame 501 away from the chain suspension frame 502. In this embodiment, four film pressing rollers 508 are staggered with two film outlet rollers 504 and one pressure measuring roller 5061, respectively. Figure 11As shown, slide rods 5062 are rotatably mounted on both the top and bottom of the pressure measuring roller 5061. Slide holes 5063 are provided on both the top and bottom of the film outlet frame 501. Two slide rods 5062 are slidably mounted inside the two slide holes 5063 respectively. A reset frame 5064 is fixedly mounted on the top of the film outlet frame 501. A reset pin 5065 is fixedly mounted on the side wall of the upper slide rod 5062. The reset pin 5065 is slidably mounted on the top of the reset frame 5064. A reset spring 5066 is movably sleeved on the adjusting electric push rod 605 of the constant force film outlet device 5. The reset spring 5066 is located at... One end of the reset frame 5064 contacts the side wall of the reset frame 5064. A sensing slide 5067 is slidably mounted on the top of the film outlet box frame 501. A slide rod 5062 located above is fixedly connected to the sensing slide 5067. A horizontally arranged constant force Hall sensor 5068 is fixedly mounted on one side of the sensing slide 5067. The sensing end of the constant force Hall sensor 5068 contacts the inner wall of one side of the transmission cover plate 513. Specifically, by setting the sensing device 506, during the film outlet process, the film outlet motor 503 drives the film outlet roller 504 to rotate, which in turn drives the synchronous belt pulley set 505 to... The two film-exit rollers 504 rotate, causing the packaging film located between the film-exit rollers 504, the film-cutting frame 601 of the constant force film-exit device 5, and the pressure roller 508 to be conveyed to the outside under the drive of the film-exit rollers 504. When the packaging film is wrapped around the goods 8 to be packaged, the position where the packaging film contacts the pressure roller 5061 will be driven by the reaction force of the packaging film on the goods 8 to be packaged, causing the top slide rod 5062 to slide in the slide hole 5063. This, in turn, drives the constant force Hall sensor 5068 to move through the sensing slide 5067, so that the sensing end of the constant force Hall sensor 5068 is in contact with the transmission cover plate 513. When the contact pressure changes, the magnitude of the pressure sensed by the constant force Hall sensor 5068 is used to determine the magnitude of the wrapping force applied by the packaging film to the goods 8 to be packaged. This allows for control of the output power of the lifting motor 403 and the film dispensing motor 503, enabling adaptive speed adjustment. The speed at which the constant force film dispensing device 5 moves up and down and the speed at which the film is dispensed are adjusted in real time according to the magnitude of the wrapping force, ensuring that the wrapping force of the packaging film on the goods 8 to be packaged remains relatively constant. This achieves the effect of constant force film dispensing, enabling constant force wrapping of the goods 8 to be packaged, improving packaging efficiency, and meeting customer needs.

[0022] like Figure 7 , Figure 8As shown, spring locks 514 are fixedly installed on the top and bottom sides of the film guide cover 507, opposite to the film outlet frame 501. Locking holes adapted to the spring locks 514 are opened on the top and bottom of the film outlet frame 501. Specifically, by setting the spring locks 514, after each replacement of the tubular packaging film 512, the film guide cover 507 is directly closed, and the locking rods of the two spring locks 514 on one side of the film guide cover 507 will directly spring into the two locking holes, locking the film guide cover 507 on one side of the film outlet frame 501. This allows the four internal pressure rollers 508 to press the packaging film tightly, ensuring that the film guide cover 507 will not loosen during the high-speed rotation of the constant force film outlet device 5 and during the film outlet process. At the same time, when it is necessary to open the film guide cover 507, it is only necessary to press down the locking rods of the two spring locks 514, which is simple and convenient to operate.

[0023] like Figure 7 , Figure 8 As shown, a cargo photoelectric detector 515 is fixedly installed on the inner wall of one side of the guide film cover 507. A detection hole corresponding to the position of the cargo photoelectric detector 515 is opened on the side wall of the guide film cover 507. Specifically, by setting the cargo photoelectric detector 515, the cargo photoelectric detector 515 can detect the position of the cargo to be packaged 8. When the cargo photoelectric detector 515 senses that there is cargo to be packaged 8 in front, the rotating rocker arm mechanism 3, the lifting column mechanism 4, and the constant force film feeding device 5 will be continuously driven to wrap the cargo to be packaged 8. When the constant force film feeding device 5 completes the packaging of the cargo to be packaged 8 from bottom to top, the constant force film feeding device 5 will move to the side above the cargo to be packaged 8. At this time, the cargo photoelectric detector 515 can no longer sense the cargo to be packaged 8, so it controls the constant force film feeding device 5 to start descending and wrapping to the film cutting position, so that the film cutting device 6 can automatically cut the film and complete the automatic packaging of a single double stroke.

[0024] like Figure 9 As shown, multiple symmetrically distributed guide sliders 516 are fixedly installed on the side of the film outlet frame 501 opposite to the guide film cover plate 507, such as... Figure 5 As shown, vertically arranged linear guide rails 410 are fixedly installed on both sides of the main column frame 402, and multiple guide sliders 516 are slidably installed on the two linear guide rails 410 respectively. Specifically, by setting the guide sliders 516, when the lifting motor 403 drives the sprocket 406 to drive the lifting column mechanism 4 touch screen controller 9 to move up and down, and then drives the constant force film outlet device 5 to move up and down and wind, the multiple guide sliders 516 on one side of the film outlet box frame 501 will slide up and down synchronously on the linear guide rails 410 on both sides of the main column frame 402. Thus, the sliding cooperation between the guide sliders 516 and the linear guide rails 410 limits and controls the vertical movement trajectory of the constant force film outlet device 5, preventing the constant force film outlet device 5 from shaking with the lifting chain 409 during the up and down movement and circular motion.

[0025] like Figure 14 As shown, the packaging platform 7 is used for precise positioning and repositioning of the goods 8 to be packaged. The packaging platform 7 includes an electric rotary table 701 set inside the lower frame 1 of the gantry. The top of the electric rotary table 701 is driven and mounted with a support tray 702 coaxial with the rocker arm gear 304. The support tray 702 has four evenly distributed clearance grooves 703 on its periphery. The bottom of the support tray 702 is provided with four positioning devices 704 for clamping and positioning the goods. like Figure 15 As shown, the positioning device 704 includes an electric slide rail 7041 fixedly installed on the bottom of the support tray 702. Four electric slide rails 7041 are respectively located at the bottom of four clearance grooves 703. An electric positioning slider 7042 is internally installed in each electric slide rail 7041. Figure 16 As shown, a telescopic frame 7043 is fixedly installed on one side of the electric positioning slider 7042, and a vertically arranged small electric push rod 7044 is fixedly installed on one side of the telescopic frame 7043. The fixed end and telescopic end of the small electric push rod 7044 are fixedly connected to the fixed end and telescopic end of the telescopic frame 7043, respectively. A positioning claw 7045 is slidably installed on the top of the telescopic end of the telescopic frame 7043, and a horizontally arranged positioning Hall sensor 7046 is fixedly installed on the top of the telescopic end of the telescopic frame 7043. The sensing end of the positioning Hall sensor 7046 is in contact with the side wall of the positioning claw 7045. Specifically, by setting up the packaging platform 7, after the goods to be packaged 8 are transported to the pallet 702 by the front-end station / AGV equipment, the position of the goods to be packaged 8 will be slightly offset from the predetermined position. At this time, the small electric push rods 7044 inside each electric slide rail 7041 will... 044 drives the telescopic frame 7043 to extend upwards, causing each positioning claw 7045 to pass through the relief groove 703 from the bottom of the tray 702 and rise to the top of the tray 702. Then, each electric positioning slider 7042 slides inside the electric slide rail 7041, causing each positioning claw 7045 to move synchronously toward the goods to be packaged 8 until the two contact, so that the goods to be packaged 8 is pushed by the positioning claws 7045 and moved to the correct position, achieving precise positioning of the goods to be packaged 8 and preventing the goods to be packaged 8 from shifting during the packaging process, which facilitates the subsequent constant force film dispensing and packaging. At the same time, when the positioning claws 7045 contact and clamp the bottom of the goods to be packaged 8, the positioning Hall sensor 7046 will detect the reverse pressure on the positioning claws 7045 to prevent the positioning claws 7045 from applying too much pressure to the goods to be packaged 8, which could cause damage to the outer packaging.

[0026] like Figure 16As shown, multiple horizontally arranged lifting pulleys 7047 are rotatably mounted on the side of the positioning claw 7045 away from the positioning Hall sensor 7046. Specifically, by setting up the lifting pulleys 7047, when the constant force film dispensing device 5 descends along the lifting column mechanism 4 and performs spiral packaging on the goods to be packaged 8, if the constant force film dispensing device 5 is about to move to the bottom of the goods to be packaged 8, the small electric push rod 7044 will drive the positioning claw 7045 to descend to the bottom of the support tray 702, so as to prevent the packaging process at the bottom of the goods to be packaged 8 from being obstructed. The lifting pulleys 7047 can replace the positioning claw 7045 in contact with the outer packaging of the goods to be packaged 8, so as to reduce the frictional resistance generated by the sliding of the positioning claw 7045.

[0027] like Figure 16 As shown, horizontally arranged dust-collecting air plates 7048 are fixedly installed on both sides of the top of the electric slide rail 7041, and connecting air pipes 7049 are fixedly installed on the side walls of the dust-collecting air plates 7048. Specifically, by setting up the dust-collecting air plates 7048, before packaging the goods 8 to be packaged, a high-powered vacuum cleaner can be connected to each connecting air pipe 7049 through multiple pipes, so that each dust-collecting air plate 7048 can be used to vacuum the inside of each electric slide rail 7041 from both sides, so as to prevent dust and other contaminants from the goods 8 to be packaged during the handling process from falling into the electric slide rail 7041 and affecting the operation of the electric positioning slider 7042.

[0028] like Figure 2 As shown, a touch screen controller 9 is fixedly installed on one side of the lower frame 1 of the gantry. Specifically, by setting up the touch screen controller 9, the staff can adjust the detection value of the constant force Hall sensor 5068 in real time according to the different categories of goods 8 to be packaged. The analog output is sent to the PCB control board, thereby adjusting the rotation speed of the rotating rocker arm mechanism 3, the lifting speed of the constant force film dispensing device 5, and the film dispensing speed of the constant force film dispensing device 5 in real time. Thus, the actual winding speed and the tightness of the packaging film can be adjusted according to the different goods 8 to be packaged.

[0029] In summary: When using this constant force film-ejection online cantilever wrapping machine, first, the tubular packaging film 512 is fitted onto the inner support head 511 and the film-dispensing shaft 510. Then, the guide film cover 507 is opened, and the movable end of the tubular packaging film 512 is moved to one side of the two film-ejection rollers 504. Then, the guide film cover 507 is closed, so that the four pressure rollers 508 and the film-ejection rollers 504 are staggered, thereby stretching the packaging film taut on the two film-ejection rollers 504. The movable end of the packaging film passes through the seam between the film-ejection box frame 501 and the guide film cover 507 and extends to the outside. The film-cutting device 6 is started, causing the hydraulic push rods 603 of the claws on both sides to retract, driving the two clamping claws 604 to open. The operator places one end of the packaging film between the two clamping claws 604. The drive clamping jaw 604 resets to clamp one end of the packaging film. At this time, the goods to be packaged 8 are transported to the packaging table 7 via the front-end station / AGV equipment. The rotating rocker arm mechanism 3 starts, and the rocker arm motor 301 drives the transmission shaft 305 to rotate through the first transmission steering box 302. In turn, the rocker arm gear 304 drives the horizontal rocker arm 307 to rotate on top of the goods to be packaged 8. The horizontal rocker arm 307 drives the constant force film dispensing device 5 to make a circular motion around the goods to be packaged 8 through the lifting column mechanism 4, so that the packaging film is spread out and wrapped around the goods to be packaged 8. At the same time, the lifting column mechanism 4 starts, and the lifting motor 403 drives the upper chain shaft 405 to rotate through the second transmission steering box 404, thereby driving the lifting chain 409 through the upper sprocket 406. The device begins to move vertically, thereby driving the entire constant force film-ejecting device 5 to move up and down reciprocally via the chain suspension bracket 502 connected to both ends of the lifting chain 409. This allows the constant force film-ejecting device 5 to perform both circular motion and spiral lifting, automatically wrapping the packaging film at the designated position of the goods to be packaged 8. Finally, the constant force film-ejecting device 5 descends to one side of the heat-cutting machine 608, where the adjusting electric push rod 605 and the electric telescopic slide table 607 work together to drive the heat-cutting machine 608 to cut the packaging film using high temperature, completing the automatic packaging and automatic film cutting of the goods to be packaged 8. The back-end station / AGV equipment then ships the goods to be packaged 8, and the next goods to be packaged 8 are sent to the packaging station for the next round of packaging. The entire packaging process is automated. With a high degree of automation, minimal manual operation, rapid packaging, and tight, uniform wrapping, the system utilizes a sensing device 506. During the film-ejection process, the film-ejection motor 503 drives the film-ejection roller 504 to rotate, which in turn drives two film-ejection rollers 504 to rotate via the synchronous pulley group 505. This causes the packaging film, positioned between the film-ejection roller 504, the film-cutting frame 601 of the constant-force film-ejection device 5, and the pressure roller 508, to be conveyed outward under the influence of the film-ejection roller 504. When the packaging film wraps around the goods 8 to be packaged, the contact point between the packaging film and the pressure roller 5061, under the reaction force of the packaging film's wrapping force on the goods 8, causes the top sliding rod 5062 to slide in the sliding hole 5063. This, in turn, drives the constant-force Hall sensor 5068 to move via the sensing slide 5067.The contact pressure between the sensing end of the constant force Hall sensor 5068 and the transmission cover plate 513 changes. By monitoring the magnitude of the pressure sensed by the constant force Hall sensor 5068, the magnitude of the wrapping force applied by the packaging film to the goods 8 to be packaged is determined. This controls the output power of the lifting motor 403 and the film dispensing motor 503, enabling adaptive speed adjustment. The up-and-down movement speed of the constant force film dispensing device 5 and the film dispensing speed are adjusted in real time according to the magnitude of the wrapping force, keeping the wrapping force of the packaging film on the goods 8 to be packaged in a relatively constant state, achieving the effect of constant force film dispensing. This achieves constant force wrapping of the goods 8 to be packaged, improving packaging efficiency and meeting customer needs. By setting a spring lock 514, after each replacement of the tubular packaging film 512, When the guide film cover 507 is closed directly, the locking rods of the two spring-loaded latches 514 on one side of the guide film cover 507 will spring directly into the two locking holes, locking the guide film cover 507 to one side of the film outlet frame 501. This ensures that the four internal pressure rollers 508 can press the packaging film tightly, preventing the guide film cover 507 from loosening during the high-speed rotation of the constant force film outlet device 5 and during film outlet. To open the guide film cover 507, simply press down the locking rods of the two spring-loaded latches 514. The operation is simple and convenient. By setting up a cargo photoelectric detector 515, the position of the goods to be packaged 8 can be detected. When the cargo photoelectric detector 515 senses the presence of goods to be packaged 8 in front, the rotating rocker arm mechanism 3 and the lifting stand... The column mechanism 4 and the constant force film dispensing device 5 will be continuously driven to wrap the goods 8 to be packaged. When the constant force film dispensing device 5 finishes wrapping the goods 8 from bottom to top, it will move to the upper side of the goods 8. At this time, the photoelectric detector 515 can no longer detect the goods 8, so it controls the constant force film dispensing device 5 to start descending and wrapping to the film cutting position, so that the film cutting device 6 can automatically cut the film, completing the single double-stroke automatic packaging. By setting guide sliders 516, when the lifting motor 403 drives the sprocket 406 to drive the lifting column mechanism 4 touch screen controller 9 to move up and down, and then drives the constant force film dispensing device 5 to move up and down and wrap, multiple guide sliders 516 on one side of the film dispensing box frame 501 will move synchronously on the column main The linear guide rails 410 on both sides of the frame 402 slide up and down, thereby limiting and controlling the vertical movement trajectory of the constant force film dispensing device 5 through the sliding cooperation between the guide slider 516 and the linear guide rails 410. This prevents the constant force film dispensing device 5 from swaying with the lifting chain 409 during its up-and-down movement and circular motion. By setting up the packaging platform 7, after the goods to be packaged 8 are transported to the pallet 702 by the front-end station / AGV equipment, the position of the goods to be packaged 8 will be slightly offset from the predetermined position. At this time, the small electric push rods 7044 inside each electric slide rail 7041 will drive the telescopic frame 7043 to extend upward, so that each positioning claw 7045 passes through the relief groove 703 from the bottom of the pallet 702 and is lifted to the top of the pallet 702.Subsequently, each electric positioning slider 7042 slides inside the electric slide rail 7041, causing each positioning claw 7045 to move synchronously toward the goods 8 to be packaged until they contact each other. The goods 8 are then pushed by the positioning claws 7045 to the correct position, achieving precise positioning of the goods 8 and preventing displacement during packaging. This facilitates subsequent constant-force film dispensing and packaging. Simultaneously, when the positioning claws 7045 contact and grip the bottom of the goods 8, the positioning Hall sensor 7046 will detect the positioning claws 7045. The reverse pressure is detected to prevent the positioning claw 7045 from applying excessive pressure to the goods to be packaged 8, which could damage the outer packaging. By installing a lifting pulley 7047, when the constant force film dispensing device 5 descends along the lifting column mechanism 4 to perform spiral packaging on the goods to be packaged 8, if the constant force film dispensing device 5 is about to move to the bottom of the goods to be packaged 8, the small electric push rod 7044 will drive the positioning claw 7045 to descend to the bottom of the pallet 702, preventing obstruction of the packaging process at the bottom of the goods to be packaged 8. The lifting pulley 7047 can replace... The positioning claw 7045 contacts the outer packaging of the goods to be packaged 8 to reduce the frictional resistance generated by the sliding of the positioning claw 7045. By setting up a dust suction fan 7048, a high-powered dust collection device can be connected to each connecting air pipe 7049 through a multi-channel pipe before packaging the goods to be packaged 8. Thus, the dust suction fan 7048 can be used to vacuum the inside of each electric slide rail 7041 from both sides to prevent dust and other contaminants from the goods to be packaged 8 during handling from falling into the electric slide rail 7041 and affecting the electric positioning slider 7042. The operation was affected. By setting up a touch screen controller 9, staff can adjust the detection value of the constant force Hall sensor 5068 in real time according to the different categories of goods 8 to be packaged. The analog output is sent to the PCB control board, thereby adjusting parameters such as the rotation speed of the rotating rocker arm mechanism 3, the lifting speed of the constant force film dispensing device 5, and the film dispensing speed of the constant force film dispensing device 5 in real time. This allows for the adjustment of parameters such as the actual wrapping speed and the tightness of the packaging film according to the different goods 8 to be packaged.

[0030] 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 of the present invention is defined by the appended claims and their equivalents.

Claims

1. A constant-force film-discharge online cantilever winding machine, characterized in that, The system includes a lower gantry frame (1), a top gantry frame (2) fixedly installed on the top of the lower gantry frame (1), a rotating rocker arm mechanism (3) provided on the top of the top gantry frame (2), a vertically arranged lifting column mechanism (4) fixedly installed on one side of the bottom of the rotating rocker arm mechanism (3), a constant force film dispensing device (5) slidably installed on one side of the lifting column mechanism (4), a film cutting device (6) and a packaging table (7) provided inside the lower gantry frame (1), and goods to be packaged (8) placed on the top of the packaging table (7). The rotating rocker arm mechanism (3) is used to drive the lifting column mechanism (4) and the constant force film dispensing device (5) to rotate around the goods to be packaged (8) and wrap the packaging film. The rotating rocker arm mechanism (3) includes a rocker arm motor (301), a first transmission steering box (302) and a suspension box (303) fixedly installed on the inner wall of the top of the gantry upper frame (2). The output end of the rocker arm motor (301) is driven to be connected to the input end of the first transmission steering box (302). The bottom of the suspension box (303) is rotatably mounted with a rocker arm gear (304). The output end of the first transmission steering box (302) is vertically downward and fixedly mounted with a transmission shaft (305). The bottom end of the transmission shaft (305) is fixedly sleeved with a transmission gear (306) that meshes with the rocker arm gear (304). The bottom of the rocker arm gear (304) is fixedly mounted with a horizontal rocker arm (307). One end of the horizontal rocker arm (307) is fixedly mounted with an upper mounting plate (308). The lifting column mechanism (4) is used to drive the constant force film dispensing device (5) to move up and down around the goods to be packaged (8). The lifting column mechanism (4) includes a lower mounting plate (401) fixedly installed at the bottom of the upper mounting plate (308). A vertically arranged column main frame (402) is fixedly installed at the bottom of the lower mounting plate (401). A lifting motor (403) and a second transmission steering box (404) are fixedly installed on one side of the top of the column main frame (402). The output end of the lifting motor (403) is drivenly connected to the input end of the second transmission steering box (404). A horizontally arranged upper chain shaft (405) is rotatably mounted on the top of the column main frame (402). One end of the upper chain shaft (405) is drivenly connected to the output end of the second transmission steering box (404). An upper sprocket (406) is fixedly sleeved on the upper chain shaft (405). A horizontally arranged lower chain shaft (407) is rotatably mounted on the bottom of the column main frame (402). A lower sprocket (408) corresponding to the position of the upper sprocket (406) is fixedly sleeved on the lower chain shaft (407). The same lifting chain (409) meshes on the upper sprocket (406) and the lower sprocket (408). The constant force film dispensing device (5) is used to dispense packaging film around the goods to be packaged (8) for constant force packaging. The constant force film dispensing device (5) includes a film dispensing box frame (501). Two symmetrically distributed chain suspension frames (502) are fixedly installed on one side of the film dispensing box frame (501) from top to bottom. The two ends of the lifting chain (409) are respectively fixedly installed on the side of the two chain suspension frames (502) that are far apart from each other. A vertically arranged film dispensing motor (503) is fixedly installed on one side of the film dispensing box frame (501). Two vertically arranged film dispensing rollers (504) are rotatably installed on the other side of the film dispensing box frame (501). The top ends of the two film dispensing rollers (504) extend to the top of the film dispensing box frame (501). The output shaft of the film dispensing motor (503) extends to the top of the film dispensing box frame (501). The top end of the output shaft of the film dispensing motor (503) and the two film dispensing rollers (504) are connected. The top is fitted with the same synchronous pulley set (505). A sensing device (506) is provided on one side of the film outlet frame (501). A film guide cover (507) is rotatably installed on the other side of the film outlet frame (501). Four vertically arranged film pressing rollers (508) are rotatably installed on the side of the film guide cover (507) facing the film outlet frame (501). A film feeding seat (509) is fixedly installed on one side of the bottom of the film outlet frame (501). A vertically arranged film-dispensing shaft (510) is rotatably mounted on the top of the film-dispensing base (509). An inner support head (511) is fixedly mounted on the top of the film-dispensing shaft (510). The same cylindrical packaging film (512) is sleeved on the film-dispensing box frame (501) and the inner support head (511). A transmission cover plate (513) is fixedly mounted on the top of the film-dispensing box frame (501). The synchronous belt pulley set (505) is located inside the transmission cover plate (513). The film cutting device (6) is used to clamp the movable end of the tubular packaging film (512) and cut the tubular packaging film (512) after winding. The film cutting device (6) includes a film cutting frame (601) disposed inside the lower frame (1) of the gantry. A claw frame (602) is fixedly installed on the top of the film cutting frame (601) facing the goods (8) to be packaged. Two symmetrically arranged claw hydraulic push rods (603) are rotatably installed on the same side of the claw frame (602). The telescopic ends of the claw hydraulic push rods (603) are rotatably installed. The film clamping jaws (604) are symmetrically arranged and slidably mounted on one side of the jaw frame (602). The top of the film cutting frame (601) is rotatably mounted with a directional electric push rod (605) and a directional arm (606). The output end of the directional electric push rod (605) is rotatably mounted on one side of the directional arm (606). One end of the directional arm (606) is fixedly mounted with a horizontally arranged electric telescopic slide (607). The telescopic end of the electric telescopic slide (607) is fixedly mounted with a heat-cutting film cutter (608).

2. The constant force film-exit online cantilever winding machine according to claim 1, characterized in that, The sensing device (506) includes a pressure measuring roller (5061) vertically disposed on the side of the film outlet frame (501) away from the chain suspension frame (502). Slide rods (5062) are rotatably mounted on both the top and bottom ends of the pressure measuring roller (5061). Slide holes (5063) are provided on both the top and bottom of the film outlet frame (501). The two slide rods (5062) are slidably mounted inside the two slide holes (5063). A reset frame (5064) is fixedly mounted on the top of the film outlet frame (501). A reset pin (5065) is fixedly mounted on the side wall of the upper slide rod (5062). The reset pin (5065) is slidably mounted on the reset frame. At the top of (5064), a reset spring (5066) is movably sleeved on the electric push rod (605) of the constant force film dispensing device (5). The reset spring (5066) is located at one end of the reset frame (5064) and contacts the side wall of the reset frame (5064). A sensing slide (5067) is slidably installed on the top of the film dispensing box frame (501). The slide rod (5062) located above is fixedly connected to the sensing slide (5067). A horizontally arranged constant force Hall sensor (5068) is fixedly installed on one side of the sensing slide (5067). The sensing end of the constant force Hall sensor (5068) contacts the inner wall of one side of the transmission cover plate (513).

3. The constant force film output online cantilever winding machine according to claim 1, characterized in that, The top and bottom sides of the membrane guide cover (507) opposite to the membrane outlet frame (501) are both fixedly equipped with spring locks (514), and the top and bottom of the membrane outlet frame (501) are provided with lock holes that are compatible with the spring locks (514).

4. The constant force film output online cantilever winding machine according to claim 1, characterized in that, A cargo photoelectric detector (515) is fixedly installed on one inner wall of the guide film cover (507), and a detection hole corresponding to the position of the cargo photoelectric detector (515) is opened on the side wall of the guide film cover (507).

5. A constant-force online cantilever winding machine for film output according to claim 1, characterized in that, The membrane outlet frame (501) has multiple symmetrically distributed guide sliders (516) fixedly installed on the side away from the membrane guide cover plate (507). The main frame of the column (402) has vertically arranged linear guide rails (410) fixedly installed on both sides. The multiple guide sliders (516) are respectively slidably installed on the two linear guide rails (410).

6. The constant force film output online cantilever winding machine according to claim 1, characterized in that, The packaging platform (7) is used to accurately position and reposition the goods (8) to be packaged. The packaging platform (7) includes an electric rotary table (701) set inside the lower frame (1) of the gantry. The top of the electric rotary table (701) is driven to install a support tray (702) coaxial with the rocker arm gear (304). The support tray (702) has four evenly distributed clearance grooves (703) on its periphery. The bottom of the support tray (702) is provided with four positioning devices (704) for clamping and positioning the goods. The positioning device (704) includes an electric slide rail (7041) fixedly installed at the bottom of the support tray (702). The four electric slide rails (7041) are respectively located at the bottom of the four clearance grooves (703). An electric positioning slider (7042) is installed inside the electric slide rail (7041). A telescopic frame (7043) is fixedly installed on one side of the electric positioning slider (7042). A vertically arranged small electric [device] is fixedly installed on one side of the telescopic frame (7043). The push rod (7044) has its fixed end and telescopic end fixedly connected to the fixed end and telescopic end of the telescopic frame (7043), respectively. A positioning claw (7045) is slidably installed on the top of the telescopic end of the telescopic frame (7043). A horizontally arranged positioning Hall sensor (7046) is fixedly installed on the top of the telescopic end of the telescopic frame (7043). The sensing end of the positioning Hall sensor (7046) is in contact with the side wall of the positioning claw (7045).

7. A constant-force online cantilever winding machine for film output according to claim 6, characterized in that, The positioning claw (7045) has multiple horizontally arranged lifting pulleys (7047) mounted on the side opposite to the positioning Hall sensor (7046).

8. A constant-force online cantilever winding machine for film output according to claim 6, characterized in that, The electric slide rail (7041) has horizontally arranged dust suction plates (7048) fixedly installed on both sides of its top, and the dust suction plates (7048) have connecting air pipes (7049) fixedly installed on their side walls.

9. A constant-force online cantilever winding machine for film output according to claim 1, characterized in that, A touch screen controller (9) is fixedly installed on one side of the lower frame (1) of the gantry.

Images