Constant-force film output online cantilever winding machine

Abstract

The invention discloses a constant-force film output online cantilever winding machine, and relates to the technical field of winding machines. The device comprises a lower gantry frame, an upper gantry frame is fixedly installed at the top of the lower gantry frame, a rotating rocker arm mechanism is arranged at the top of the upper gantry frame, and a vertically-arranged lifting stand column mechanism is fixedly installed on one side of the bottom of the rotating rocker arm mechanism; a constant-force film discharging device is installed on one side of the lifting stand column mechanism in a sliding mode, a film baking and cutting device and a packaging table are arranged in the lower gantry frame, and goods to be packaged are placed on the top of the packaging table. By arranging the rotating rocker arm mechanism, the lifting stand column mechanism and the constant-force film discharging device, the constant-force film discharging device drives a packaging film to automatically wrap goods to be packaged, the packaging film is cut off through the film ironing and cutting device, and automatic packaging and automatic film cutting of the goods to be packaged are completed; the whole packaging process is high in automation degree, less in manual operation, rapid in packaging treatment and tight and uniform in wrapping.

Description

Technical Field

[0001] The invention relates to the technical field of winding machines, and in particular to an online cantilever winding machine with constant film output. Background Art

[0002] The market of wrapping machines is gaining more and more attention in actual industrial production. The development trends of the wrapping machine market include how to save wrapping time, reduce packaging costs, and improve equipment compatibility. Therefore, the current outer packaging market is mainly pursuing combined, simplified, and efficient packaging wrapping equipment. At the same time, with the rapid development of the packaging market, customers' demands for packaging effects are also more diversified.

[0003] At present, most of the packaging film wrapping machines on the market have problems to varying degrees, such as inconsistent wrapping force of the film on the goods due to the different lengths and widths of the goods and the different rotating winding diameters, which makes the wrapping force of the wrapping machine too large during the wrapping process. When the goods are light, the wrapping force applied by the wrapping film on the surface of the goods is inconsistent, which can easily deviate the goods and even cause damage to the goods during the packaging process. Therefore, a constant force film-discharging online cantilever wrapping machine is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that most packaging film wrapping machines on the market currently have inconsistent wrapping forces on the goods due to different lengths and widths of the goods and different rotating winding diameters, causing the wrapping machine to have excessive wrapping forces during the wrapping process. When the goods are light, the wrapping forces applied by the wrapping film on the surface of the goods are inconsistent, which can easily deviate the goods and even cause damage to the goods during the packaging process. The present invention provides a constant force film-discharging online cantilever wrapping machine.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A constant-force film-discharging online cantilever winding machine comprises a gantry lower frame, a gantry upper frame is fixedly mounted on the top of the gantry lower frame, a rotating rocker mechanism is arranged on the top of the gantry upper frame, a vertically arranged lifting column mechanism is fixedly mounted on one side of the bottom of the rotating rocker mechanism, a constant-force film-discharging device is slidably mounted on one side of the lifting column mechanism, a film-cutting device and a packaging table are arranged inside the gantry lower frame, and goods to be packaged are placed on the top of the packaging table; The rotating rocker mechanism is used to drive the lifting column mechanism and the constant force film discharging device to rotate around the goods to be packaged and wrap the packaging film. The rotating rocker mechanism includes a rocker motor, a first transmission steering box and a suspension box fixedly installed on the top inner wall of the gantry upper frame. The output end of the rocker motor is drivingly connected to the input end of the first transmission steering box. A rocker gear is rotatably installed at the bottom of the suspension box. The output end of the first transmission steering box is vertically downward and fixedly installed with a transmission shaft. The bottom end of the transmission shaft is fixedly sleeved with a transmission gear meshing with the rocker gear. A horizontal rocker is fixedly installed at the bottom of the rocker gear, and an upper mounting plate is fixedly installed at the bottom of one end of the horizontal rocker. The lifting column mechanism is used to drive the constant force film discharging device to move up and down around the goods to be packaged, and the lifting column mechanism comprises a lower mounting plate fixedly mounted on the bottom of the upper mounting plate, and the bottom of the lower mounting plate is fixedly mounted with a vertically arranged column main frame, and a lifting motor and a second transmission steering box are fixedly mounted on one side of the top of the column main frame, and the output end of the lifting motor is drivingly connected to the input end of the second transmission steering box. The top of the column main frame is rotatably mounted with a horizontally arranged upper chain shaft, and one end of the upper chain shaft is drivingly connected to the output end of the second transmission steering box. An upper sprocket is fixedly sleeved on the upper chain shaft, and a lower sprocket corresponding to the position of the upper sprocket is rotatably mounted on the bottom end of the column main frame. The constant-force film-discharging device is used for discharging packaging film around the goods to be packaged for constant-force packaging. The constant-force film-discharging device comprises a film-discharging box frame, one side of the film-discharging box frame is fixedly installed with two symmetrically distributed chain suspension frames from top to bottom, and the two ends of the lifting chain are respectively fixedly installed on the sides of the two chain suspension frames away from each other. A vertically arranged film-discharging motor is fixedly installed on one side of the film-discharging box frame, and two vertically arranged film-discharging rollers are rotatably installed on the other side of the film-discharging box frame. The top ends of the two film-discharging rollers extend to the top of the film-discharging box frame, and the output shaft of the film-discharging motor extends to the top of the film-discharging box frame. The top and the top of the two film discharge rollers are sleeved with the same synchronous pulley group, one side of the film discharge box frame is provided with a sensing device, and a film guide cover plate is rotatably installed on the other side of the film discharge box frame, and four vertically arranged film pressing rollers are rotatably installed on the film guide cover plate toward one side of the film discharge box frame, and a film placing seat is fixedly installed on one side of the bottom of the film discharge box frame, and a vertically arranged film placing shaft is rotatably installed on the top of the film placing seat, and an inner supporting head is fixedly installed on the top of the film placing shaft, and the same cylindrical packaging film is sleeved on the film discharge box frame and the inner supporting head, and a transmission cover plate is fixedly installed on the top of the film discharge box frame, and the synchronous pulley group is located inside the transmission cover plate; The film-cutting device is used for clamping the movable end of the tubular packaging film and cutting the tubular packaging film after winding is completed. The film-cutting device comprises a film-cutting frame arranged inside the lower frame of the gantry, a claw frame is fixedly installed on the top of the film-cutting frame towards the side of the goods to be packaged, and two symmetrically arranged claw hydraulic push rods are rotatably installed on the same side of the claw frame, and the telescopic ends of the claw hydraulic push rods are rotatably installed with film clamping claws, and the two film clamping claws are symmetrically arranged and slidably installed on one side of the claw frame, and an adjusting electric push rod and an adjusting arm are rotatably installed on the top of the film-cutting frame, and the output end of the adjusting electric push rod is rotatably installed on one side of the adjusting arm, and a horizontally arranged electric telescopic slide is fixedly installed on one end of the adjusting arm, and a film-cutting machine is fixedly installed on the telescopic end of the electric telescopic slide.

[0006] The top and bottom ends of the pressure measuring roller are rotatably mounted on the film outlet box frame, and sliding holes are opened on the top and bottom of the film outlet box frame, and the two sliding rods are slidably mounted on the inside of the two sliding holes. A reset frame is fixedly mounted on the top of the film outlet box frame, and a reset nail is fixedly mounted on the side wall of the slide bar located above, and the reset nail is slidably mounted on the top of the reset frame. The constant force film outlet device is adjusted to be movably sleeved on the electric push rod, and the reset spring is located at one end of the reset frame and contacts with the side wall of the reset frame, and a sensing slide is slidably mounted on the top of the film outlet box frame, and the slide bar located above is fixedly connected to the sensing slide, and a horizontally arranged constant force Hall sensor is fixedly mounted on one side of the sensing slide, and the sensing end of the constant force Hall sensor contacts with an inner wall of one side of the transmission cover.

[0007] Furthermore, spring strike locks are fixedly installed on the top and bottom of the film guide cover plate on one side away from the film outlet box frame, and lock holes matched with the spring strike locks are opened on the top and bottom of the film outlet box frame.

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

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

[0010] Furthermore, the packaging platform is used to accurately position and transpose the goods to be packaged, and the packaging platform includes an electric rotating platform arranged inside the lower frame of the gantry, the top drive of the electric rotating platform is equipped with a bearing tray coaxial with the rocker gear, four evenly distributed make way grooves are opened on the circumference of the bearing tray, and four positioning devices for clamping and positioning the goods are arranged at the bottom of the bearing tray; The positioning device includes an electric slide rail fixedly installed on the bottom of the supporting tray, the four electric slide rails are respectively located at the bottom of the four give way grooves, the internal drive of the electric slide rail is installed with an electric positioning slider, 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 the telescopic end of the small electric push rod are respectively fixedly connected to the fixed end and the telescopic end of the telescopic frame, 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, and the sensing end of the positioning Hall sensor is in contact with the side wall of the positioning claw.

[0011] Furthermore, a plurality of lifting pulleys horizontally arranged from top to bottom are rotatably mounted on the side of the positioning claw facing away from the positioning Hall sensor.

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

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

[0014] The beneficial effects of the present invention are as follows: 1. The present invention is provided with a rotating rocker mechanism, a lifting column mechanism and a constant force film discharging device, so that the constant force film discharging device drives the packaging film to automatically wrap the goods to be packaged, and the film cutting device controls the film cutting machine to cut the packaging film, thereby completing the automatic packaging and automatic film cutting of the goods to be packaged. The whole packaging process has a high degree of automation, less manual operation, rapid packaging processing, and tight and uniform packaging; 2. The present invention sets a sensing device to determine the size of the tightening force applied by the current packaging film to the goods to be packaged by monitoring the size of the sensing pressure of the constant force Hall sensor, controls the output power of the lifting motor and the film discharging motor, and performs adaptive speed adjustment, so that the speed of the constant force film discharging device moving up and down and the speed of the film discharging are adjusted in real time with the size of the tightening force, so that the tightening force of the packaging film on the goods to be packaged is in a relatively constant state, achieving the effect of constant force film discharging, realizing constant force winding packaging of the goods to be packaged, improving the packaging effect, and meeting customer needs; 3. The present invention provides a spring strike lock, so that after each replacement of the cylindrical packaging film, the film guide cover plate is directly closed, and the locking rods of the upper and lower spring strike locks on one side of the film guide cover plate are directly ejected into the two lock holes, locking the film guide cover plate on one side of the film discharging box frame, so that the four internal film pressing rollers can press the packaging film, ensuring that the film guide cover plate will not be loosened during the high-speed rotation of the constant force film discharging device and the film discharging process. At the same time, when it is necessary to open the film guide cover plate, it is only necessary to press the locking rods of the two spring strike locks, which is simple and convenient to operate; 4. The present invention sets a cargo photoelectric detector, so that when the cargo photoelectric detector senses the presence of cargo to be packaged in front, the packaging film wraps the cargo to be packaged, and when the constant force film discharging device completes the packaging from bottom to top along the cargo to be packaged, the constant force film discharging device will move to the upper side of the cargo to be packaged. At this time, the cargo photoelectric detector cannot sense the cargo to be packaged, and the constant force film discharging device is controlled to start descending and wrapping to the film cutting position, so that the film cutting device automatically cuts the film, and completes the single double-stroke automatic packaging; 5. The present invention sets a guide slider, so that when the lifting motor drives the upper sprocket wheel to drive the lifting column mechanism touch screen controller to move up and down, and then drives the constant force film discharging device to move up and down and wind, multiple guide sliders on one side of the film discharging box frame will synchronously slide up and down on the linear guide rails on both sides of the column main frame, so as to limit and control the vertical movement trajectory of the constant force film discharging device by using the sliding cooperation between the guide slider and the linear guide rail, so as to prevent the constant force film discharging device from shaking with the lifting chain during the up and down movement and circular motion; 6. By setting up a packaging table, the goods to be packaged can be accurately positioned and prevented from shifting during the packaging process, which is convenient for subsequent constant force film discharge and packaging. At the same time, when the positioning claw contacts and clamps the bottom of the goods to be packaged, the positioning Hall sensor will detect the reverse pressure on the positioning claw to prevent the positioning claw from applying too much pressure on the goods to be packaged, causing damage to the outer packaging. 7. By setting a lifting pulley, when the constant-force film discharging device descends along the lifting column mechanism and performs spiral packaging on the goods to be packaged, if the constant-force film discharging 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 tray to prevent the packaging process at the bottom of the goods to be packaged from being obstructed. The lifting pulley can replace the positioning claw to contact the outer packaging of the goods to be packaged, so as to reduce the friction resistance caused by the sliding of the positioning claw; 8. By setting up dust suction wind plates, before packaging the goods to be packaged, high-power dust suction equipment can be connected to each docking air duct through multi-pass pipes, so that each dust suction wind plate can be used to vacuum the inside of each electric slide rail from both sides to prevent dust contaminated during the transportation of the goods to be packaged from falling into the electric slide rail and affecting the operation of the electric positioning slider; 9. The present invention provides a touch screen controller so that the staff can adjust the detection value of the constant force Hall sensor in real time according to the classification of the goods to be packaged by using the touch screen controller on one side of the lower frame of the gantry, and output the analog value to the PCB control board, thereby adjusting the rotation speed of the rotating rocker arm mechanism, the lifting speed of the constant force film discharging device, and the film discharging speed of the constant force film discharging device in real time. Parameters such as the actual winding speed of the packaging film and the tightening force size can be adjusted according to the different goods to be packaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the gantry lower frame and the gantry upper frame of the present invention; Figure 3 It is a schematic diagram of the top three-dimensional structure of the rotary rocker arm mechanism of the present invention; Figure 4 It is a schematic diagram of the bottom three-dimensional structure of the rotary rocker arm mechanism of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the lifting column mechanism of the present invention; Figure 6 It is a schematic diagram of the internal three-dimensional structure of the main frame of the column of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the constant force film discharging device of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the film guide cover plate of the present invention in an open state; Fig. 9 It is a schematic diagram of the three-dimensional structure of the interior of the film outlet box frame of the present invention from a first-view perspective; Fig.10 It is a schematic diagram of the three-dimensional structure of the film outlet box frame of the present invention from a second viewing angle; Fig.11 The present invention Fig.10 Schematic diagram of the structure at A in the middle; Fig.12 This is a schematic diagram of the stereoscopic structure of the film cutting device of the present invention from the first viewing angle; Fig.13 2. It is a schematic diagram of the stereoscopic structure of the film cutting device of the present invention from a second viewing angle; Fig.14 It is a schematic diagram of the three-dimensional structure of the packaging table of the present invention; Fig.15 It is a schematic diagram of the three-dimensional structure of the positioning device of the present invention; Fig.16 It is a schematic diagram of the three-dimensional structure of the telescopic frame and the small electric push rod of the present invention; Figure numerals: 1, gantry lower frame; 2, gantry upper frame; 3, rotating rocker arm mechanism; 301, rocker arm motor; 302, first transmission steering box; 303, suspension box; 304, rocker arm gear; 305, transmission shaft; 306, transmission gear; 307, horizontal rocker arm; 308, upper mounting plate; 4, lifting column mechanism; 401, lower mounting plate; 402, column main frame; 403, lifting motor; 404, second transmission steering box; 405, upper chain shaft; 406, upper chain wheel ; 407, lower chain shaft; 408, lower sprocket; 409, lifting chain; 410, linear guide; 5, constant force film discharging device; 501, film discharging box frame; 502, chain suspension frame; 503, film discharging motor; 504, film discharging roller; 505, synchronous belt pulley group; 506, induction device; 5061, pressure measuring roller; 5062, slide bar; 5063, slide hole; 5064, reset frame; 5065, reset nail; 5066, reset spring; 5067, induction slide; 5068, Constant force Hall sensor; 507, film guide cover; 508, film pressing roller; 509, film placing seat; 510, film placing shaft; 511, inner support head; 512, tubular packaging film; 513, transmission cover; 514, spring strike lock; 515, cargo photoelectric detector; 516, guide slide; 6, film cutting device; 601, film cutting frame; 602, claw frame; 603, claw hydraulic push rod; 604, film clamping claw; 605, direction adjustment electric push rod; 606, direction adjustment arm; 607, electric Dynamic telescopic slide; 608, film cutting machine; 7, packaging table; 701, electric rotating table; 702, tray; 703, clearance slot; 704, positioning device; 7041, electric slide rail; 7042, electric positioning slider; 7043, telescopic frame; 7044, small electric push rod; 7045, positioning claw; 7046, positioning Hall sensor; 7047, lifting pulley; 7048, dust suction wind plate; 7049, docking air duct; 8, goods to be packaged; 9, touch screen controller. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0019] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] like Figures 1 to 16 As shown, a constant force film-discharging online cantilever winding machine includes a gantry lower frame 1, as shown in FIG. Figure 1 As shown, a gantry upper frame 2 is fixedly installed on the top of the gantry lower frame 1, a rotating rocker mechanism 3 is arranged on the top of the gantry upper frame 2, a vertically arranged lifting column mechanism 4 is fixedly installed on one side of the bottom of the rotating rocker mechanism 3, a constant force film discharging device 5 is slidably installed on one side of the lifting column mechanism 4, a film cutting device 6 and a packaging table 7 are arranged inside the gantry lower frame 1, and goods to be packaged 8 are placed on the top of the packaging table 7; The rotating rocker mechanism 3 is used to drive the lifting column mechanism 4 and the constant force film discharging device 5 to rotate around the goods to be packaged 8 and wrap the packaging film. Figure 3 As shown, the rotary rocker mechanism 3 includes a rocker motor 301 fixedly mounted on the top inner wall of the gantry upper frame 2, a first transmission steering box 302 and a suspension box 303. The output end of the rocker motor 301 is drivingly 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 gear 304. Figure 4 As shown, the output end of the first transmission steering box 302 is vertically downward and fixedly installed with a transmission shaft 305, the bottom end of the transmission shaft 305 is fixedly sleeved with a transmission gear 306 meshing with the rocker gear 304, the bottom of the rocker gear 304 is fixedly installed with a horizontal rocker arm 307, and the bottom of one end of the horizontal rocker arm 307 is fixedly installed with an upper mounting plate 308; The lifting column mechanism 4 is used to drive the constant force film discharging device 5 to move up and down around the goods to be packaged 8. Figure 5As shown, the lifting column mechanism 4 includes a lower mounting plate 401 fixedly mounted on the bottom of the upper mounting plate 308, a vertically arranged column main frame 402 is fixedly mounted on the bottom of the lower mounting plate 401, a lifting motor 403 and a second transmission steering box 404 are fixedly mounted on one side of the top of the column main frame 402, and the output end of the lifting motor 403 is drivingly connected to the input end of the second transmission steering box 404, as shown in FIG. Figure 6 As shown, 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 drivingly connected to the output end of the second transmission steering box 404, an upper chain wheel 406 is fixedly sleeved on the upper chain shaft 405, and a horizontally arranged lower chain shaft 407 is rotatably mounted on the bottom end of the column main frame 402, and a lower chain wheel 408 corresponding to the position of the upper chain wheel 406 is fixedly sleeved on the lower chain shaft 407, as shown in FIG. Fig. 9 As shown, the upper sprocket 406 and the lower sprocket 408 are meshed with the same lifting chain 409; The constant force film discharging device 5 is used to discharge the packaging film around the goods to be packaged 8 for constant force packaging. Figure 7 As shown, the constant force film discharging device 5 includes a film discharging box frame 501, as shown in FIG. Fig. 9 As shown, one side of the film box frame 501 is fixedly installed with two symmetrically distributed chain hangers 502 from top to bottom, and the two ends of the lifting chain 409 are respectively fixedly installed on the side away from each other of the two chain hangers 502. A vertically arranged film motor 503 is fixedly installed on one side of the film box frame 501. In this embodiment, the lifting motor 403 and the film motor 503 are both servo motors. Figure 8 As shown, two vertically arranged film discharging rollers 504 are rotatably mounted on the other side of the film discharging box frame 501, and the top ends of the two film discharging rollers 504 extend to the top of the film discharging box frame 501, and the output shaft of the film discharging motor 503 extends to the top of the film discharging box frame 501, as shown in FIG. Fig.10 As shown, the top of the output shaft of the film discharging motor 503 and the top of the two film discharging rollers 504 are sleeved with the same synchronous pulley set 505, as shown in FIG. Fig. 9 As shown, a sensing device 506 is provided on one side of the film output box frame 501. In this embodiment, an encoder is provided at the output end of the rocker motor 301. The control circuits of the rocker motor 301, the lifting motor 403 and the film output motor 503 are integrated on a PCB control board. According to 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 film guide cover plate 507 is rotatably mounted on the other side of the film outlet box frame 501. Figure 8As shown, the film guide cover plate 507 is rotatably mounted with four vertically arranged film pressing rollers 508 on one side of the film outlet box frame 501, a film placing seat 509 is fixedly mounted on one side of the bottom of the film outlet box frame 501, a vertically arranged film placing shaft 510 is rotatably mounted on the top of the film placing shaft 510, and an inner support head 511 is fixedly mounted on the top of the film placing shaft 510, as shown in FIG. Figure 7 As shown, the same tubular packaging film 512 is sleeved on the film box frame 501 and the inner support head 511, a transmission cover plate 513 is fixedly installed on the top of the film box 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 is completed. Fig.12 , Fig.13As shown, the film cutting device 6 includes a film cutting frame 601 arranged 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 side of the goods to be packaged 8, two symmetrically arranged claw hydraulic push rods 603 are rotatably installed on the same side of the claw frame 602, and the telescopic ends of the claw hydraulic push rods 603 are rotatably installed with film clamping claws 604, and the two film clamping claws 604 are symmetrically arranged and slidably installed on one side of the claw frame 602, and the top of the film cutting frame 601 is rotatably installed with an adjustment electric push rod 605 and an adjustment arm 606, and the output end of the adjustment electric push rod 605 is rotatably installed on one side of the adjustment arm 606, and one end of the adjustment arm 606 is fixedly installed with a horizontally arranged electric telescopic slide 607, and the telescopic end of the electric telescopic slide 607 is fixedly installed with a film cutting machine 608;Specifically, when the constant force film-discharging online cantilever winding machine is in use, the tubular packaging film 512 is first sleeved on the inner support head 511 and the film-discharging shaft 510, and then the film guide cover plate 507 is opened, and the movable end of the tubular packaging film 512 is moved to one side of the two film-discharging rollers 504, and then the film guide cover plate 507 is closed, so that the four film pressing rollers 508 and the film-discharging rollers 504 are staggered, so that the packaging film is tightened on the two film-discharging rollers 504, and the movable end of the packaging film passes through the joint between the film-discharging box frame 501 and the film guide cover plate 507 and extends to the outside, and the film cutting device 6 is started to make the clamping claws on both sides liquid The pressure push rod 603 contracts, driving the two film clamping claws 604 to open, and the staff puts one end of the packaging film between the two film clamping claws 604. The claw hydraulic push rod 603 drives the film clamping claw 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 through the front-end station / AGV equipment, and the rotating rocker mechanism 3 starts to start. The rocker motor 301 drives the transmission shaft 305 to rotate through the first transmission steering box 302, and then drives the horizontal rocker 307 to rotate on the top of the goods to be packaged 8 through the meshing rocker gear 304, so that the horizontal rocker 30 The constant-force film discharging device 5 is driven by the lifting column mechanism 4 to make a circular motion around the goods to be packaged 8, so that the packaging film is wound around the goods to be packaged 8 in an unfolded state. At the same time, the lifting column mechanism 4 is started, 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 to start moving in the vertical direction through the upper chain wheel 406, thereby driving the entire constant-force film discharging device 5 to move up and down through the chain hanging frame 502 connected to both ends of the lifting chain 409, so that the constant-force film discharging device 5 can perform both circular motion and spiral lifting. , so that the packaging film is automatically wrapped at the designated position of the goods to be packaged 8, and finally the constant force film discharging device 5 is lowered to one side of the film cutting machine 608, and the electric push rod 605 and the electric telescopic slide 607 are adjusted to cooperate with each other to drive, and the film cutting machine 608 is controlled to use high temperature to cut the packaging film, and the automatic packaging and automatic film cutting of the goods to be packaged 8 are completed. The rear station / AGV equipment will ship the goods to be packaged 8, and the next piece of goods to be packaged 8 will be sent to the packaging station for the next round of packaging processing. The entire packaging process has a high degree of automation, less manual operation, rapid packaging processing, and tight and uniform packaging. ;

[0021] like Fig.10 As shown, the sensing device 506 includes a pressure measuring roller 5061 vertically arranged on the side of the film box frame 501 away from the chain suspension frame 502. In this embodiment, four film pressing rollers 508 are respectively staggered with two film rollers 504 and one pressure measuring roller 5061. Fig.11As shown, the top and bottom ends of the pressure measuring roller 5061 are rotatably mounted with a slide bar 5062, the top and bottom of the film discharging box frame 501 are provided with a slide hole 5063, the two slide bars 5062 are slidably mounted inside the two slide holes 5063, and a reset frame 5064 is fixedly mounted on the top of the film discharging box frame 501. A reset nail 5065 is fixedly mounted on the side wall of the upper slide bar 5062, and the reset nail 5065 is slidably mounted on the top of the reset frame 5064. The constant force film discharging device 5 is adjusted to the electric push rod 605 and a reset spring 5066 is movably sleeved. The reset spring 5066 is located at One end of the reset frame 5064 contacts the side wall of the reset frame 5064, and a sensing slide 5067 is slidably installed on the top of the film box frame 501. The slide bar 5062 located above is fixedly connected to the sensing slide 5067. A horizontally set 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. Specifically, by setting the sensing device 506, during the film discharging process, the film discharging motor 503 drives the film discharging roller 504 to rotate, and then the synchronous belt pulley group 505 drives the film discharging roller 504 to rotate. The two film discharging rollers 504 are driven to rotate, so that the packaging film between the film discharging roller 504, the film cutting frame 601 of the constant force film discharging device 5 and the film pressing roller 508 is transported to the outside under the drive of the film discharging roller 504. When the packaging film is wound on the goods to be packaged 8, the contact position between the packaging film and the pressure measuring roller 5061 will drive the top slide bar 5062 to slide in the slide hole 5063 under the reaction force of the packaging film on the goods to be packaged 8, thereby driving the constant force Hall sensor 5068 to move through the induction slide 5067, so that the sensing end of the constant force Hall sensor 5068 is in contact with the transmission cover plate 513. The contact pressure changes, and the size of the clamping force applied by the current packaging film to the goods to be packaged 8 is determined by monitoring the size of the induced pressure of the constant force Hall sensor 5068, thereby controlling the output power of the lifting motor 403 and the film discharge motor 503, and performing adaptive speed adjustment, so that the speed of the constant force film discharge device 5 moving up and down and the speed of the film discharge are adjusted in real time with the size of the clamping force, so that the clamping force of the packaging film on the goods to be packaged 8 is in a relatively constant state, achieving the effect of constant force film discharge, realizing constant force winding packaging of the goods to be packaged 8, improving the packaging effect, and meeting customer needs.

[0022] like Figure 7 , Figure 8As shown, spring locks 514 are fixedly installed on the top and bottom of the film guide cover plate 507 away from the film outlet box frame 501, and lock holes compatible with the spring locks 514 are opened on the top and bottom of the film outlet box frame 501; specifically, by setting the spring locks 514, the film guide cover plate 507 is directly closed after each replacement of the cylindrical packaging film 512, and the locking rods of the upper and lower spring locks 514 on one side of the film guide cover plate 507 will directly pop into the two lock holes, locking the film guide cover plate 507 to one side of the film outlet box frame 501, so that the four internal film pressing rollers 508 can press the packaging film, ensuring that the film guide cover plate 507 will not get loose during the high-speed rotation of the constant force film outlet device 5 and the film outlet process. At the same time, when it is necessary to open the film guide cover plate 507, it is only necessary to press 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 film guide cover plate 507, and a detection hole corresponding to the position of the cargo photoelectric detector 515 is opened on the side wall of the film guide cover plate 507; specifically, by setting the cargo photoelectric detector 515, the cargo photoelectric detector 515 can detect the position of the goods 8 to be packaged. When the cargo photoelectric detector 515 senses the presence of the goods 8 to be packaged in front, the rotating rocker arm mechanism 3, the lifting column mechanism 4, and the constant force film discharging device 5 will be driven continuously to wrap the goods 8 to be packaged. When the constant force film discharging device 5 completes the packaging from bottom to top along the goods 8 to be packaged, the constant force film discharging device 5 will move to the upper side of the goods 8 to be packaged. At this time, the cargo photoelectric detector 515 cannot sense the goods 8 to be packaged, and the constant force film discharging device 5 is controlled to start descending and winding to the film cutting position, so that the film cutting device 6 automatically cuts the film to complete the single double-stroke automatic packaging.

[0024] like Fig. 9 As shown, a plurality of symmetrically distributed guide sliders 516 are fixedly mounted on one side of the film outlet box frame 501 away from the film guide cover plate 507, as shown in FIG. Figure 5 As shown, vertically arranged linear guide rails 410 are fixedly installed on both sides of the column main frame 402, and a plurality of 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 upper sprocket wheel 406 to drive the lifting column mechanism 4 touch screen controller 9 to move up and down, and then drives the constant force film discharging device 5 to move up and down and wrap, the plurality of guide sliders 516 on one side of the film discharging box frame 501 will synchronously slide up and down on the linear guide rails 410 on both sides of the column main frame 402, so as to limit and control the vertical movement trajectory of the constant force film discharging device 5 by utilizing the sliding cooperation between the guide sliders 516 and the linear guide rails 410, so as to prevent the constant force film discharging device 5 from shaking along with the lifting chain 409 during the up and down movement and circular motion.

[0025] like Fig.14 As shown, the packaging table 7 is used to accurately position and replace the goods 8 to be packaged. The packaging table 7 includes an electric rotating table 701 arranged inside the lower frame 1 of the gantry. The top drive of the electric rotating table 701 is equipped with a tray 702 coaxial with the rocker gear 304. Four evenly distributed make way grooves 703 are opened on the circumference of the tray 702. Four positioning devices 704 for clamping and positioning the goods are arranged at the bottom of the tray 702. like Fig.15 As shown, the positioning device 704 includes an electric slide rail 7041 fixedly installed at the bottom of the tray 702. The four electric slide rails 7041 are respectively located at the bottom of the four clearance grooves 703. The internal drive of the electric slide rail 7041 is installed with an electric positioning slider 7042. Fig.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 the telescopic end of the small electric push rod 7044 are respectively fixedly connected to the fixed end and the telescopic end of the telescopic frame 7043. 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, and the sensing end of the positioning Hall sensor 7046 is in contact with the side wall of the positioning claw 7045. Specifically, by setting the packaging table 7, after the goods 8 to be packaged are transported to the tray 702 by the front-end workstation / AGV equipment, the position of the goods 8 to be packaged will be slightly offset from the predetermined position. At this time, the small electric push rods 7044 inside each electric slide rail 7041 are 044 will drive the telescopic frame 7043 to extend upward, so that each positioning claw 7045 passes through the yield groove 703 from the bottom of the supporting tray 702 and is lifted to the top of the supporting tray 702, and then each electric positioning slider 7042 slides inside the electric slide rail 7041, so that each positioning claw 7045 moves synchronously to the goods to be packaged 8 until the two are in contact, so that the goods to be packaged 8 are pushed by the positioning claw 7045 and moved to the correct position, thereby realizing accurate positioning of the goods to be packaged 8 and preventing the goods to be packaged 8 from shifting during the packaging process, facilitating subsequent constant force film discharge and packaging. At the same time, when the positioning claw 7045 contacts and clamps the bottom of the goods to be packaged 8, the positioning Hall sensor 7046 will detect the reverse pressure exerted on the positioning claw 7045 to prevent the positioning claw 7045 from applying too much pressure on the goods to be packaged 8 and causing damage to the outer packaging.

[0026] like Fig.16As shown, the side of the positioning claw 7045 facing away from the positioning Hall sensor 7046 is rotatably installed with multiple lifting pulleys 7047 horizontally arranged from top to bottom; specifically, by setting the lifting pulley 7047, when the constant force film-discharging device 5 descends along the lifting column mechanism 4 and spirally packs the goods to be packaged 8, if the constant force film-discharging 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 supporting tray 702 to prevent the packaging process at the bottom of the goods to be packaged 8 from being obstructed. The lifting pulley 7047 can replace the positioning claw 7045 to contact the outer packaging of the goods to be packaged 8 to reduce the friction resistance caused by the sliding of the positioning claw 7045.

[0027] like Fig.16 As shown, horizontally arranged dust suction air plates 7048 are fixedly installed on both sides of the top of the electric slide rail 7041, and docking air ducts 7049 are fixedly installed on the side walls of the dust suction air plates 7048; specifically, by setting the dust suction air plates 7048, before packaging the goods 8 to be packaged, a high-power dust suction device can be connected to each docking air duct 7049 through a multi-channel pipeline, so that each dust suction air plate 7048 can be used to vacuum the inside of each electric slide rail 7041 from both sides to prevent dust contaminated during the transportation of the goods 8 to be packaged 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 gantry lower frame 1; specifically, by setting 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 classifications of the goods 8 to be packaged, and output the analog value 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 discharging device 5, and the film discharging speed of the constant force film discharging device 5 in real time, thereby adjusting the actual winding speed of the packaging film and the tightening force and other parameters according to the different goods 8 to be packaged.

[0029] In summary, when the constant force film-discharging online cantilever winding machine is in use, the tubular packaging film 512 is first sleeved on the inner support head 511 and the film-discharging shaft 510, and then the film guide cover plate 507 is opened, and the movable end of the tubular packaging film 512 is moved to one side of the two film-discharging rollers 504, and then the film guide cover plate 507 is closed, so that the four film pressing rollers 508 and the film-discharging rollers 504 are staggered, so that the packaging film is tightened on the two film-discharging rollers 504, and the movable end of the packaging film passes through the joint between the film-discharging box frame 501 and the film guide cover plate 507 and extends to the outside, and the film cutting device 6 is started to make the hydraulic push rods 603 of the clamping claws 603 on both sides contract, driving the two film clamping claws 604 to open, and the staff places one end of the packaging film between the two film clamping claws 604, and the hydraulic push rods 603 of the clamping claws The film clamping claw 604 is driven to reset to clamp one end of the packaging film. At this time, the goods to be packaged 8 are transported to the packaging table 7 through the front-end station / AGV equipment, and the rotating rocker mechanism 3 starts to start. The rocker motor 301 drives the transmission shaft 305 to rotate through the first transmission steering box 302, and then drives the horizontal rocker 307 to rotate on the top of the goods to be packaged 8 through the meshing rocker gear 304, so that the horizontal rocker 307 drives the constant force film discharging 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 wrapped around the goods to be packaged 8 in an unfolded state. At the same time, the lifting column mechanism 4 is started, 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 chain wheel 406. It starts to move in the vertical direction, thereby driving the entire constant force film discharging device 5 to move up and down reciprocatingly through the chain hanger 502 connected to the two ends of the lifting chain 409, so that the constant force film discharging device 5 can perform both circular motion and spiral lifting, so that the packaging film is automatically wrapped at the specified position of the goods to be packaged 8, and finally the constant force film discharging device 5 descends to one side of the film cutting machine 608, and the electric push rod 605 and the electric telescopic slide 607 are adjusted to cooperate with each other to drive the film cutting machine 608 to control the film cutting machine 608 to cut the packaging film with high temperature, thereby completing the automatic packaging and automatic film cutting of the goods to be packaged 8, and the back-end station / AGV equipment will ship the goods to be packaged 8, and the next piece of goods to be packaged 8 will be sent to the packaging station for the next round of packaging processing. The entire packaging process is automatically The packaging device has a high degree of automation, less manual operation, rapid packaging processing, and tight and uniform packaging. By setting the sensing device 506, during the film discharging process, the film discharging motor 503 drives the film discharging roller 504 to rotate, and then drives the two film discharging rollers 504 to rotate through the synchronous pulley group 505, so that the packaging film between the film discharging roller 504, the film cutting frame 601 of the constant force film discharging device 5 and the film pressing roller 508 is transported to the outside under the drive of the film discharging roller 504. When the packaging film is wound on the goods to be packaged 8, the position where the packaging film contacts the pressure measuring roller 5061 will drive the top slide bar 5062 to slide in the slide hole 5063 under the reaction force of the packaging film on the goods to be packaged 8, thereby driving the constant force Hall sensor 5068 to move through the sensing slide 5067.The contact pressure between the sensing end of the constant force Hall sensor 5068 and the transmission cover plate 513 is changed, so that the size of the clamping force applied by the current packaging film to the packaged goods 8 is determined by monitoring the size of the sensing pressure of the constant force Hall sensor 5068, so as to control the output power of the lifting motor 403 and the film discharging motor 503, and perform adaptive speed adjustment, so that the speed of the constant force film discharging device 5 moving up and down and the speed of the film discharging are adjusted in real time with the size of the clamping force, so that the clamping force of the packaging film on the packaged goods 8 is in a relatively constant state, so as to achieve the effect of constant force film discharging, realize the constant force winding packaging of the packaged goods 8, improve the packaging effect, and meet customer needs. By setting the spring collision lock 514, after each replacement of the cylindrical packaging film 512, The film guide cover 507 is directly closed, and the locking rods of the upper and lower spring locks 514 on one side of the film guide cover 507 will directly bounce into the two locking holes, locking the film guide cover 507 to one side of the film discharging box frame 501, so that the four film pressing rollers 508 inside can 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 discharging device 5 and the film discharging process. At the same time, when it is necessary to open the film guide cover 507, it is only necessary to press the locking rods of the two spring locks 514, which is simple and convenient to operate. By setting the cargo photoelectric detector 515, the cargo photoelectric detector 515 can detect the position of the cargo 8 to be packaged. When the cargo photoelectric detector 515 senses the presence of the cargo 8 to be packaged in front, the rotating rocker arm mechanism 3 and the lifting and lowering mechanism are The column mechanism 4 and the constant force film discharging device 5 will be driven all the time to wrap and pack the goods to be packaged 8. When the constant force film discharging device 5 completes the packaging from bottom to top along the goods to be packaged 8, the constant force film discharging device 5 will move to the upper side of the goods to be packaged 8. At this time, the goods photoelectric detector 515 cannot sense the goods to be packaged 8, and the constant force film discharging device 5 will be controlled to start descending and winding to the film cutting position, so that the film cutting device 6 will automatically cut the film to complete the single double-stroke automatic packaging. By setting the guide slider 516, when the lifting motor 403 drives the upper sprocket wheel 406 to drive the lifting column mechanism 4 touch screen controller 9 to move up and down, and then drive the constant force film discharging device 5 to move up and down and wrap, the multiple guide sliders 516 on one side of the film discharging box frame 501 will be synchronously moved on the column main The linear guide rails 410 on both sides of the frame 402 slide up and down, so that the vertical movement trajectory of the constant force film discharging device 5 is limited and controlled by the sliding cooperation between the guide slider 516 and the linear guide rail 410, so as to prevent the constant force film discharging device 5 from shaking along with the lifting chain 409 during the up and down movement and circular motion. By setting the packaging table 7, after the goods 8 to be packaged are transported to the tray 702 by the front-end workstation / AGV equipment, the position of the goods 8 to be packaged 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 is lifted from the bottom of the tray 702 through the clearance groove 703 to the top of the tray 702.Afterwards, each electric positioning slider 7042 slides inside the electric slide rail 7041, so that each positioning claw 7045 moves 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 claw 7045, and is moved to the correct position, so as to achieve accurate positioning of the goods to be packaged 8 and prevent the goods to be packaged 8 from shifting during the packaging process, which is convenient for subsequent constant force film discharge and packaging. At the same time, when the positioning claw 7045 contacts and clamps the bottom of the goods to be packaged 8, the positioning Hall sensor 7046 will sense the positioning claw 7045. The reverse pressure received is detected to prevent the positioning claw 7045 from applying too much pressure to the packaged goods 8 and causing damage to the outer packaging. By setting the lifting pulley 7047, when the constant force film discharging device 5 descends along the lifting column mechanism 4 and spirally packs the packaged goods 8, if the constant force film discharging device 5 is about to move to the bottom of the packaged goods 8, the small electric push rod 7044 will drive the positioning claw 7045 to descend to the bottom of the tray 702 to prevent the packaging process at the bottom of the packaged goods 8 from being obstructed. The lifting pulley 7047 can replace The positioning claw 7045 is in contact with the outer packaging of the goods to be packaged 8 to reduce the friction resistance caused by the sliding of the positioning claw 7045. By setting the dust suction air plate 7048, before the goods to be packaged 8 are packaged, a high-power dust suction device can be connected to each docking air duct 7049 through a multi-pass pipeline, so that each dust suction air plate 7048 can be used to vacuum the inside of each electric slide rail 7041 from both sides to prevent dust and the like contaminated during the transportation of the goods to be packaged 8 from falling into the electric slide rail 7041, so as to prevent the electric positioning slider 7042 from being moved. In order to affect the operation of the packaging machine, the touch screen controller 9 is set so that the staff can adjust the detection value of the constant force Hall sensor 5068 in real time according to the classification of the goods 8 to be packaged, and output the analog value to the PCB control board, thereby adjusting the rotation speed of the rotating rocker mechanism 3, the lifting speed of the constant force film discharging device 5, and the film discharging speed of the constant force film discharging device 5 in real time, so as to adjust the actual winding speed of the packaging film and the tightening force according to the different goods 8 to be packaged.

[0030] The above shows and describes 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 above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A constant force film-discharging online cantilever winding machine, characterized in that: It comprises a gantry lower frame (1), a gantry upper frame (2) is fixedly mounted on the top of the gantry lower frame (1), a rotating rocker arm mechanism (3) is arranged on the top of the gantry upper frame (2), a vertically arranged lifting column mechanism (4) is fixedly mounted on one side of the bottom of the rotating rocker arm mechanism (3), a constant force film discharging device (5) is slidably mounted on one side of the lifting column mechanism (4), a film cutting device (6) and a packaging table (7) are arranged inside the gantry lower frame (1), and goods to be packaged (8) are placed on the top of the packaging table (7); The rotating rocker mechanism (3) is used to drive the lifting column mechanism (4) and the constant force film discharging device (5) to rotate around the goods to be packaged (8) and wrap the packaging film. The rotating rocker mechanism (3) comprises a rocker motor (301) fixedly mounted on the inner wall of the top of the gantry upper frame (2), a first transmission steering box (302) and a suspension box (303). The output end of the rocker motor (301) is drivingly connected to the input end of the first transmission steering box (302). A rocker gear (304) is rotatably mounted on the bottom of the suspension box (303). 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) meshing with the rocker gear (304). A horizontal rocker arm (307) is fixedly mounted on the bottom of the rocker gear (304). An upper mounting plate (308) is fixedly mounted on the bottom of one end of the horizontal rocker arm (307). The lifting column mechanism (4) is used to drive the constant force film discharging device (5) to move up and down around the goods to be packaged (8), and the lifting column mechanism (4) comprises a lower mounting plate (401) fixedly mounted on the bottom of the upper mounting plate (308), a vertically arranged column main frame (402) is fixedly mounted on the bottom of the lower mounting plate (401), a lifting motor (403) and a second transmission steering box (404) are fixedly mounted on one side of the top of the column main frame (402), the output end of the lifting motor (403) is drivingly connected to the input end of the second transmission steering box (404), and the lifting column mechanism (4) comprises a lower mounting plate (401) fixedly mounted on the bottom of the upper mounting plate (408), a vertically arranged column main frame (402) is fixedly mounted on the top of the column main frame (402), and a lifting motor (403) and a second transmission steering box (404) are fixedly mounted on one side of the top of the column main frame (402). A horizontally arranged upper chain shaft (405) is rotatably mounted on the top end of the column main frame (402), one end of the upper chain shaft (405) is drivingly connected to the output end of the second transmission steering box (404), an upper chain wheel (406) is fixedly sleeved on the upper chain shaft (405), a horizontally arranged lower chain shaft (407) is rotatably mounted on the bottom end of the column main frame (402), a lower chain wheel (408) corresponding to the position of the upper chain wheel (406) is fixedly sleeved on the lower chain shaft (407), and the upper chain wheel (406) and the lower chain wheel (408) are meshed with the same lifting chain (409); The constant force film discharging device (5) is used for discharging packaging film around the goods to be packaged (8) for constant force packaging, and the constant force film discharging device (5) comprises a film discharging box frame (501), one side of the film discharging box frame (501) is fixedly installed with two symmetrically distributed chain suspension frames (502) from top to bottom, and the two ends of the lifting chain (409) are respectively fixedly installed on the sides of the two chain suspension frames (502) that are away from each other, and one side of the film discharging box frame (501) is fixedly installed with a vertically arranged film discharging motor (503), and the other side of the film discharging box frame (501) is rotatably installed with two vertically arranged film discharging rollers (504), the top ends of the two film discharging rollers (504) both extend to the top of the film discharging box frame (501), the output shaft of the film discharging motor (503) extends to the top of the film discharging box frame (501), and the top end of the output shaft of the film discharging motor (503) and the ends of the two film discharging rollers (504) are connected. The top is sleeved with a same synchronous pulley group (505), one side of the film outlet box frame (501) is provided with a sensing device (506), the other side of the film outlet box frame (501) is rotatably mounted with a film guide cover plate (507), the film guide cover plate (507) is rotatably mounted with four vertically arranged film pressing rollers (508) facing one side of the film outlet box frame (501), and the bottom side of the film outlet box frame (501) is fixedly mounted with a film placing seat (509). A vertically arranged film placing shaft (510) is rotatably mounted on the top of the film placing seat (509); an inner support head (511) is fixedly mounted on the top of the film placing shaft (510); a same cylindrical packaging film (512) is sleeved on the film discharging box frame (501) and the inner support head (511); a transmission cover plate (513) is fixedly mounted on the top of the film discharging box 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. The film-cutting device (6) comprises a film-cutting frame (601) arranged 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 side of the goods to be packaged (8). 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 both rotatably installed. It is equipped with a film clamping claw (604), and the two film clamping claws (604) are symmetrically arranged and slidably installed on one side of the claw frame (602). The top of the film cutting frame (601) is rotatably installed with an adjusting electric push rod (605) and an adjusting arm (606). The output end of the adjusting electric push rod (605) is rotatably installed on one side of the adjusting arm (606). One end of the adjusting arm (606) is fixedly installed with a horizontally arranged electric telescopic slide (607), and the telescopic end of the electric telescopic slide (607) is fixedly installed with a film cutting machine (608).

2. A constant force film-discharging online cantilever winding machine according to claim 1, characterized in that: The sensing device (506) comprises a pressure measuring roller (5061) vertically arranged on the side of the film outlet box frame (501) away from the chain suspension frame (502), the top and bottom of the pressure measuring roller (5061) are rotatably mounted with sliding rods (5062), the top and bottom of the film outlet box frame (501) are provided with sliding holes (5063), the two sliding rods (5062) are respectively slidably mounted inside the two sliding holes (5063), a reset frame (5064) is fixedly mounted on the top of the film outlet box frame (501), and a reset nail (5065) is fixedly mounted on the side wall of the sliding rod (5062) located above, and the reset nail (5065) is slidably mounted on the reset frame The top of the film discharging box frame (501) is provided with a sensor slide (5067) which is slidably mounted on the top of the film discharging box frame (501). The slide bar (5062) located at the top is fixedly connected to the sensor slide (5067). A horizontally arranged constant force Hall sensor (5068) is fixedly mounted on one side of the sensor slide (5067). The sensing end of the constant force Hall sensor (5068) is in contact with an inner wall of one side of the transmission cover plate (513).

3. The constant force film-discharging online cantilever winding machine according to claim 1, characterized in that: A spring strike lock (514) is fixedly installed on the top and bottom of the film guide cover plate (507) on the side facing away from the film outlet box frame (501), and a lock hole matching the spring strike lock (514) is opened on the top and bottom of the film outlet box frame (501).

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

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

6. The constant force film-discharging online cantilever winding machine according to claim 1, characterized in that: The packaging platform (7) is used to accurately position and replace the goods to be packaged (8), and the packaging platform (7) comprises an electric rotating platform (701) arranged inside the lower frame (1) of the gantry, the top drive of the electric rotating platform (701) is equipped with a support tray (702) coaxial with the rocker gear (304), the peripheral side of the support tray (702) is provided with four evenly distributed clearance grooves (703), and the bottom of the support tray (702) is provided with four positioning devices (704) for clamping and positioning the goods; The positioning device (704) comprises an electric slide rail (7041) fixedly mounted on the bottom of the support tray (702), the four electric slide rails (7041) being respectively located at the bottom of the four clearance slots (703), the electric slide rail (7041) being internally driven and installed with an electric positioning slider (7042), a telescopic frame (7043) being fixedly mounted on one side of the electric positioning slider (7042), and a small electric vertically arranged A push rod (7044), wherein the fixed end and the telescopic end of the small electric push rod (7044) are respectively fixedly connected to the fixed end and the telescopic end of the telescopic frame (7043), 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), and the sensing end of the positioning Hall sensor (7046) is in contact with the side wall of the positioning claw (7045).

7. The constant force film-discharging online cantilever winding machine according to claim 6, characterized in that: A plurality of lifting pulleys (7047) arranged horizontally from top to bottom are rotatably mounted on the side of the positioning claw (7045) facing away from the positioning Hall sensor (7046).

8. The constant force film-discharging online cantilever winding machine according to claim 6, characterized in that: Horizontally arranged dust suction air plates (7048) are fixedly mounted on both sides of the top of the electric slide rail (7041), and docking air ducts (7049) are fixedly mounted on the side walls of the dust suction air plates (7048).

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

Images