CN111038759B

CN111038759B - Cantilever winding machine and calculation method of number of wrapping layers and stretching ratio

Info

Publication number: CN111038759B
Application number: CN201911345337.5A
Authority: CN
Inventors: 陈明方; 张祥; 王学军; 张凯翔; 姚国一; 张永霞; 贺玮; 胡康康; 陈中平
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2021-03-23
Anticipated expiration: 2039-12-24
Also published as: CN113148275B; CN113148275A; CN111038759A

Abstract

The invention discloses a cantilever winding machine and a calculation method of the number of wrapping layers and the stretching ratio, and belongs to the field of packaging. The cantilever winding machine comprises a frame, a cantilever device, a film frame, a film clamping device, a film cutting and brushing device and a roller line. In the invention, except for the steps of manually installing the packaging film on the film frame and completing film threading and film clamping when the packaging film is used and replaced for the first time, the whole working process is controlled by the control console through the PLC to clamp, cut and brush the film by using the platform of the cantilever winding machine, and the wrapping layer number and the stretching ratio of the packaging film can be set.

Description

Cantilever winding machine and calculation method of number of wrapping layers and stretching ratio

Technical Field

The invention relates to a cantilever winding machine and a calculation method of the number of wrapping layers and the stretching ratio, and belongs to the field of packaging.

Background

Packaging machinery has become one of ten major industries in the mechanical industry of China. The winding machine is widely used for the packaging cost of products such as foreign trade outlets, food and beverage, plastic chemical industry, glass ceramics and electromechanical castings, can prevent goods from being damaged in the carrying process, and plays roles in dust prevention, moisture prevention and cleaning. With the continuous advance of the industrial 4.0 process, the winding machine is accelerating to optical-mechanical-electrical integration and automation, and in the aspect of packaging mechanical automation, automation operation programs such as PLC (programmable logic controller) equipment, a data collection system and the like are widely applied to save time and improve packaging quality, and are matched with the processes of manufacturing, assembling, warehousing and the like, so that the automation degree of products from raw materials to commodities is improved, and the benefit is further improved. The traditional film brushing mechanism of the cantilever winding machine usually adopts a film brush or a film welding plate, the former has a common film brushing effect, a packaging film is easy to fall off, and the latter has a complex structure and higher cost; the pre-stretching of the film frame is small, the packaging film cannot be fully utilized, and the packaging cost is increased; the tension of the packaging film cannot be sensed, and the film breaking risk exists when the rotation speed of the cantilever is high, so that the packaging reliability and the packaging efficiency are influenced; after the goods are in place, the machine needs to be started manually to start packaging, the height of the goods is set, and the automation degree is reduced.

Disclosure of Invention

The invention provides a cantilever winding machine, which constructs a working platform integrating automatic film clamping, film breaking and film brushing, and further realizes the setting of the number of wrapping layers and the stretching ratio in the control process by matching with a calculation method of the number of the wrapping layers and the stretching ratio.

The technical scheme of the invention is as follows: a cantilever winding machine comprises a frame 1, a cantilever device 2, a film frame 3, a film clamping device 4, a film cutting and brushing device 5 and a roller line 6;

the cantilever device 2 and the film breaking and brushing device 5 are arranged on the frame 1; the cantilever device 2 is used for driving the film frame 3 arranged on the cantilever device 2 to move up and down and driving the film frame 3 to rotate along with the cantilever device 2 in the horizontal direction; the film frame 3 is used for pre-stretching the packaging film 43 and sending out the packaging film 43, is driven by the cantilever device 2 to move up and down, and is used for rotating along with the cantilever device 2 in the horizontal direction; the film clamping device 4 is used for clamping/loosening the packaging film 43; the film breaking and brushing device 5 is used for fusing and brushing the packaging film 43; a roller line 6 for conveying the articles to be wrapped.

Also comprises a control console 7; the goods positioning photoelectric switch 104 in the roller line 6 transmits the in-place signal of the article to be wrapped to the console 7, and the console 7 receives the signal and controls the film frame motor 50 in the film frame 3, the cantilever longitudinal motor 32 in the cantilever device 2 and the cantilever transverse motor 39 in the cantilever device 2 to cooperatively work through the PLC; the control console 7 controls the operation of the cantilever transverse motor 39 through the PLC to drive the film frame 3 to rotate in the horizontal direction along with the cantilever device 2, controls the operation of the cantilever longitudinal motor 32 through the PLC to drive the film frame 3 to move up and down along the longitudinal cantilever 16 in the cantilever device 2, and controls the operation of the film frame motor 50 through the PLC to drive the packaging film 43 to be discharged; the console 7 controls the rotating speed of the cantilever transverse motor 39 and the cantilever longitudinal motor 32 through the PLC, so as to realize the adjustment of the wrapping layer number of the articles to be wrapped by the packaging film 43; the PLC is used for controlling the rotating speed of the cantilever transverse motor 39 and the film frame motor 50 to realize the adjustment of the stretch ratio of the packaging film 43; the height measuring photoelectric switch 60 in the film frame 3 transmits the sensed height signal of the article to be wrapped to the console 7, the console 7 further controls the cantilever longitudinal motor 32 to rotate reversely through the PLC, and the longitudinal cantilever 16 in the cantilever device 2 drives the film frame 3 to descend through chain transmission; when the film frame 3 runs to the limit position, the slide block 23 in the cantilever device 2 can trigger the upper limit switch 30 and the lower limit switch 21 which are arranged at the two ends of the longitudinal cantilever 16, the upper limit switch 30 and the lower limit switch 21 transmit signals to the console 7, and the console 7 correspondingly changes the steering direction of the longitudinal cantilever motor 32 through the PLC, so that the film frame 3 works in a safe range; the tension in the film frame 3 induces the signal that the photoelectric switch 62 transmits to the console 7, and the adjustment of the film discharging speed of the packaging film 43 is realized by controlling the rotating speed of the film frame motor 50 through the PLC.

The cantilever device 2 comprises a motor fixing top plate 8, a motor fixing side plate II 9, an angle steel I10 motor fixing bottom plate 11, a bearing seat 12, a motor fixing side plate I13, a slide rail 14, an open chain 15, a longitudinal cantilever 16, a transverse cantilever 17, a belt seat bearing I18, a chain wheel shaft I19, a cantilever chain wheel I20, a lower limit switch 21, a roller 22, a slider 23, a floating joint 24, a spiral buckle 25, a chain connecting rod 26, a film frame connecting plate 27, a belt seat bearing II 28, a cantilever chain wheel II 29, an upper limit switch 30, a chain wheel shaft II 31, a cantilever longitudinal motor 32, a cantilever lower connecting flange 33, a shaft end nut 34, a cantilever upper connecting flange 35, a thrust roller bearing 36, a central shaft 37, a coupler 38 and a cantilever transverse motor 39; wherein, the connecting flange of the cantilever longitudinal motor 32 is connected with one side of one end of the longitudinal cantilever 16 by a bolt, so that the cantilever longitudinal motor 32 is fixed on the longitudinal cantilever 16; the other side of one end of the longitudinal cantilever 16 is fixedly connected with the second seated bearing 28 through a bolt, one end of a chain wheel shaft II 31 is supported by the second seated bearing 28, the other end of the chain wheel shaft II 31 is matched with an inner hole of a longitudinal cantilever motor 32 and is connected through a key to transmit the rotary motion and the torque of the longitudinal cantilever motor 32, and a cantilever chain wheel II 29 is fixedly connected to the middle of the chain wheel shaft II 31 through a key; the other ends of the belt seat bearing I18 and the longitudinal cantilever 16 are fixedly connected through bolts, two ends of a chain wheel shaft I19 are respectively supported by the belt seat bearing I18, and a cantilever chain wheel I20 is fixedly connected to the middle of the chain wheel shaft I19 through a key; the two slide rails 14 are respectively arranged on the inner sides of the longitudinal cantilevers 16 by screws; the sliding block 23 is fixedly connected with the film frame connecting plate 27 through welding, the 4 idler wheels 22 are respectively connected with two sides of the sliding block 23 through screws and can roll in the sliding rail 14, the first chain connecting rod 26, the turnbuckle 25, the floating joint 24, the sliding block 23 and the second chain connecting rod 26 are sequentially connected through threads, the two chain connecting rods 26 are respectively connected with two ends of the open chain 15 through pin shafts to form a closed-loop chain, the closed-loop chain is matched with the cantilever chain wheel I20 and the cantilever chain wheel II 29 to drive the sliding block 23 and the film frame connecting plate 27 to ascend and descend along the sliding rail 14, and the film frame connecting plate 27 is fixedly connected with the film frame side plate 40 in the film frame 3 through bolts, so that the film frame 3 is driven to ascend and; the upper limit switch 30 and the lower limit switch 21 are respectively positioned at the upper end and the lower end of the slide rail 14 and are fixedly connected to the inner side of the longitudinal cantilever 16 by screws; one end of the transverse cantilever 17 is fixedly connected with one end of the longitudinal cantilever 16 through welding; the motor fixing side plate I13 and the motor fixing bottom plate 11 are both welded on the rack 1, a motor fixing top plate 8 and the motor fixing side plate I13, a motor fixing top plate 8 and a motor fixing side plate II 9, and a motor fixing bottom plate 11 and the motor fixing side plate II 9 are connected through an angle steel I10 and a bolt, a bearing seat 12 and the motor fixing bottom plate 11 are fixedly connected through a bolt, a connecting flange of a cantilever transverse motor 39 is fixedly connected with the motor fixing top plate 8 through a bolt, a shaft of the cantilever transverse motor 39 is connected with a central shaft 37 through a coupler 38 and a key, a thrust roller bearing 36 is fixed in the bearing seat 12 on the motor fixing bottom plate 11 and matched with the central shaft 37, and a central hole of the connecting flange 35 on the cantilever is matched with the central shaft 37 and fixed on the central shaft 37; the lower connecting flange 33 of the cantilever welded to the transverse cantilever 17 is connected to the upper connecting flange 35 of the cantilever by bolts, and transmits the rotation motion and torque of the transverse motor 39 of the cantilever to drive the rotation of the cantilever device 2 in the horizontal direction.

The film frame 3 comprises a film frame side plate 40, a film frame bottom plate 41, a top cover 42, a packaging film 43, a film frame chain wheel III 44, a chain II 45, a film frame chain wheel I46, a film frame top plate 47, a chain I48, a film frame motor chain wheel 49, a film frame motor 50, angle steel II 51, a bearing III 52 with a seat, a driven roller 53, a roller side plate 54, a handle 55, a bolt 56, a packaging film support 57, a driving roller II 58, a driving roller I59, a height measuring photoelectric switch 60, a film frame chain wheel II 61, a tension sensing photoelectric switch 62, a stop block 63, a tension sensing spring 64, a perforated screw 65, a roller connecting plate I66, a tension sensing roller II 67, a tension sensing roller I68, a roller connecting plate II 69 and an ear seat I70; the film frame side plate 40 and the film frame top plate 47 and the film frame side plate 40 and the film frame bottom plate 41 are connected through an angle steel II 51 and a bolt, the top cover 42 and the film frame top plate 47 are connected through a screw, the film frame side plate 40 and the film frame connecting plate 27 in the cantilever device 2 are fixedly connected through a bolt, and the film frame 3 is driven to lift along the longitudinal cantilever 16 through chain transmission in the longitudinal cantilever 16 in the cantilever device 2; the packaging film bracket 57 is connected with the film bracket bottom plate 41 through screws, the inner hole of the packaging film 43 is matched with the packaging film bracket 57, and the packaging film 43 can rotate along the axis thereof; the height-measuring photoelectric switch 60 is fixedly connected to the top cover 42 through a screw; the foot seat of the film frame motor 50 is connected with the film frame side plate 40 by a screw, so that the film frame motor 50 is fixed on the film frame side plate 40; the lower part of the film frame top plate 47 and the upper part of the film frame bottom plate 41 are fixedly provided with a bearing III 52 with a seat through screws, and the bearing III is respectively matched with shafts of a driving roller I59, a driving roller II 58 and a tension sensing roller I68, so that the driving roller I59, the driving roller II 58 and the tension sensing roller I68 can rotate along respective axes; the film frame chain wheel I46 and the film frame chain wheel II 61 are matched with a shaft of a driving roller I59, the film frame chain wheel III 44 is matched with a shaft of a driving roller II 58 and is circumferentially positioned through a key, so that the film frame chain wheel I46 and the film frame chain wheel II 61 can synchronously rotate with the driving roller I59, the film frame chain wheel III 44 can synchronously rotate with the driving roller II 58, the film frame motor chain wheel 49 and the film frame chain wheel I46 are matched and connected through a chain I48, the film frame chain wheel II 61 and the film frame chain wheel III 44 are matched and connected through a chain II 45, the film frame motor 50 drives the driving roller I59 to rotate through the chain I48, and the driving roller I59 drives the driving roller II 58 to rotate through the chain II 45; the tension sensing photoelectric switch 62 is connected with the film frame top plate 47 through screws, the perforated screws 65 are connected with one side of the tension sensing photoelectric switch 62 on the film frame top plate 47, one end of the tension sensing spring 64 is connected with the perforated screws 65, the other end of the tension sensing spring 64 is connected with the stop block 63, the stop block 63 is matched with the roller connecting plate I66 through a shaft and a hole, the tension sensing roller I68 is matched with the roller connecting plate I66 and the roller connecting plate II 69 through a shaft and a hole, and the tension sensing roller II 67 is connected with the roller connecting plate I66 and the roller connecting plate II 69 through screws, so that the stop block 63, the roller connecting plate I66, the tension sensing roller II 67, the tension sensing roller I68 and the roller connecting plate II 69 can synchronously rotate around the axis of the tension sensing roller I68; the driven roller 53 is connected with the roller side plate 54 through screws, the driven roller 53 can rotate along the axis of the driven roller, the roller side plate 54 is connected with the film frame bottom plate 41 through an ear seat I70 and a pin shaft, the roller side plate 54 can rotate relative to the film frame bottom plate 41, the handle 55 and the two bolts 56 are respectively fixed on the upper part of the outer side of the roller side plate 54 through screws, and the shafts of the bolts 56 can be matched with corresponding hole positions on the film frame top plate 47 to realize the opening and closing of the roller side plate 54.

The film clamping device 4 comprises a film clamping device shell 71, a film clamping plate 72, a rocker 73, a film clamping device bottom plate 74, a film clamping cylinder 75, an ear seat II 76, a film clamping device bracket 77, a bearing IV 78 with a seat, a gear shaft 79 and a gear 80; wherein the film clamping device shell 71 is connected with the film clamping device bottom plate 74 through screws, and the film clamping device shell 71 is connected with the film clamping device bracket 77 through screws; a bearing IV 78 with a seat is fixed on the inner side of the film clamping device shell 71 by bolts and is respectively matched with two gear shafts 79, so that the gear shafts 79 can rotate along respective axes; holes on the film clamping plate 72, the gear 80 and the rocker 73 are matched with the gear shaft 79 and are circumferentially fixed through keys, so that the film clamping plate 72, the gear 80, the rocker 73 and the gear shaft 79 synchronously rotate; ear seat II 76 welds on pressing from both sides membrane device bottom plate 74, through the round pin hub connection between two 76 ear seats of film clamping cylinder 75 afterbody and the ear seat, through the round pin hub connection between the piston rod tip of film clamping cylinder 75 and the rocker 73, the piston rod promotes the rocker 73 and rotates to it is rotatory to drive gear shaft 79, and two gears 80 intermeshing drive presss from both sides the diaphragm plate 72 and realizes opening and closing.

The film breaking and brushing device 5 comprises a cylinder seat 81, a large arm cylinder 82, a large arm cylinder lug seat 83, a large arm lug seat 84, a large arm 85, a small arm positioning plate 86, a small arm 87, a small arm cylinder lug seat I88, a small arm cylinder 89, a small arm cylinder lug seat II 90, a roller support connecting plate 91, a roller support 92, a heating wire support 93, a heating wire 94 and a film brushing roller 95; wherein, the cylinder seat 81 is fixedly connected on the frame 1 through a bolt, and the tail part of the large-arm cylinder 82 is connected with the cylinder seat 81 through a pin shaft; the big arm ear seat 84 is welded on the frame 1, and the big arm 85 is connected with the big arm ear seat 84 through a pin shaft; the large arm cylinder lug seat 83 is welded on the large arm 85, the end part of the piston rod of the large arm cylinder 82 is connected with the large arm cylinder lug seat 83 through a pin shaft, and the large arm cylinder 82 pushes the large arm 85 to rotate; the small arm positioning plate 86 is connected with the large arm 85 through a bolt, and the small arm 87 is connected with the small arm positioning plate 86 through a screw; the small arm cylinder lug seat I88 is welded on the small arm 87, and the tail part of the small arm cylinder 89 is connected with the small arm cylinder lug seat I88 through a pin shaft; the film brushing roller 95 is connected with the roller bracket 92 through a screw, the roller bracket 92 is fixedly connected with the roller bracket connecting plate 91 through welding, and the roller bracket connecting plate 91 is connected with the small arm 87 through a pin shaft; the small arm cylinder lug seat II 90 is welded on the roller bracket connecting plate 91, the end part of the piston rod of the small arm cylinder 89 is connected with the small arm cylinder lug seat II 90 through a pin shaft, and the small arm cylinder 89 pushes the roller bracket connecting plate 91 to rotate so as to push the roller bracket 92 and the film brushing roller 95 to rotate; the heater wire support 93 is fixedly connected with the small arm 87 through a screw, and the heater wire 94 is connected with the hole position on the heater wire support 93 in a matching way.

The roller wire 6 is arranged right below the cantilever device 2 and comprises a conveying roller 96, a roller chain wheel I97, a roller chain wheel II 98, a roller wire motor 99, a roller motor chain wheel 100, a roller motor chain 101, a roller chain 102, a roller frame 103 and a cargo positioning photoelectric switch 104; wherein, one end of the shaft of the transmission roller 96 is matched with a hole position on the roller frame 103, and the other end of the transmission roller 96 is connected with the roller frame 103 through a screw; the foot seat of the roller wire motor 99 is fixedly connected with the roller frame 103 through a bolt, so that the roller wire motor 99 is fixedly connected with the roller frame 103; the roller chain wheel I97 and the roller chain wheel II 98 are arranged at one end of the shaft of the conveying roller 96 and rotate synchronously with the conveying roller 96; the roller line motor 99 is connected with the roller motor chain wheel 100 through a key, the roller motor chain wheel 100 is connected with the roller chain wheel I97 through a roller motor chain 101, so that the roller line motor 99 can drive the conveying rollers 96 to rotate through chain transmission, the roller chain wheel II 98 on the conveying rollers 96 connected with the roller line motor 99 through the chain transmission is connected with the roller chain wheel II 98 on the second conveying roller 96 through a roller chain 102, the roller chain wheel I97 on the second conveying roller 96 is connected with the roller chain wheel I97 on the third conveying roller 96 through the roller chain 102, and every two conveying rollers 96 are connected through the roller chain 102.

A method for calculating the number of wrapping layers of an article to be wrapped by a packaging film in a cantilever winding machine comprises the following steps:

in the formula: n represents the number of wrapping layers of the wrapping film 43 for the article to be wrapped; n is₁Represents the cantilever traverse motor 39 speed; n is₂Represents the rotational speed of the boom longitudinal motor 32; i.e. i₁Representing the boom traverse motor 39 reduction ratio; i.e. i₂Representing the boom longitudinal motor 32 reduction ratio; h represents the width of the packaging film 43; z is a radical of₁Represents the number of teeth of the cantilever chain wheel II 29; a represents the open chain 15 chain number.

A method of calculating a draw ratio of a packaging film in a cantilever winding machine, the method comprising:

in the formula: i denotes a packageFilm 43 stretch ratio; n is₁Represents the cantilever traverse motor 39 speed; n is₃Indicates the speed of the film frame motor 50; d₁Represents the diameter of rotation of the transverse boom 17 in the boom apparatus 2; d₂The diameter of the driving roller I59 is shown; z is a radical of₂The number of teeth of a film frame motor chain wheel 49 is shown; z is a radical of₃The tooth number of the film frame chain wheel I46 is shown; z is a radical of₄The tooth number of the film frame chain wheel II 61 is shown; z is a radical of₅Showing the number of teeth on film frame sprocket III 44.

The draw ratio is adjusted within the range of 208% to 400%.

The invention has the beneficial effects that: in the invention, except for the steps of manually installing the packaging film on the film frame and completing film threading and film clamping when the packaging film is used and replaced for the first time, the whole working process is controlled by the control console through the PLC, the film clamping, film breaking and film brushing are carried out by utilizing the cantilever winding machine platform, and the wrapping layer number and the stretching ratio of the packaging film can be set; specifically, the method comprises the following steps: the film breaking and brushing device arranges the film brushing roller and the heating wire in one mechanism, thereby having the functions of breaking and brushing the film and having simple structure; the film brushing part pushes the roller by using the air cylinder, so that the roller presses the surface of the goods to brush the film, the film brushing effect is good, and the packaging effect is reliable; the pre-stretching ratio of the film frame can reach 208 percent, the packaging film can be fully utilized, and the packaging cost is reduced; the film frame is provided with a tension sensing photoelectric switch which can sense the tension of the packaging film and transmit a signal to the console, and the film discharging speed is controlled by controlling the rotating speed of a film frame motor so as to prevent the packaging film from being broken or insufficient in tension; a goods positioning photoelectric switch is arranged on the roller line, can sense goods in-place information and transmit the goods in-place information to a control console, and the control console controls a film frame motor, a cantilever longitudinal motor and a cantilever transverse motor to carry out subsequent packaging work; the film frame is provided with a height measuring photoelectric switch which can sense the height information of the goods and transmit the height information to the control console for controlling the longitudinal motor of the cantilever, thereby controlling the lifting of the film frame and saving the step of manually setting the height of the goods; the use of the photoelectric switch can greatly improve the automation degree of packaging.

Drawings

FIG. 1 is a schematic structural view of a cantilever winding machine of the present invention;

FIG. 2 is a top plan view of the cantilever winding machine of the present invention;

FIG. 3 is a schematic view of the structure of part A of FIG. 1;

FIG. 4 is a schematic view of a longitudinal cantilever in partial section according to the cantilever apparatus of the present invention;

FIG. 5 is a schematic view of the structure of part A in FIG. 4;

FIG. 6 is a schematic view of the structure of the portion B in FIG. 4;

FIG. 7 is a schematic view of the structure of the portion C in FIG. 4;

FIG. 8 is a schematic view of the structure of the portion D in FIG. 4;

FIG. 9 is a schematic view of the structure of the film frame of the present invention;

FIG. 10 is a schematic view of a top cover of the membrane holder of the present invention in partial cross-section;

FIG. 11 is a front view of the membrane holder of the present invention with the top cover partially in section;

FIG. 12 is a schematic view of a packaging film being stretched through a film frame;

FIG. 13 is a schematic sectional view of a housing of a film clamping device according to the present invention;

FIG. 14 is a left side view of the clamping mechanism housing of the invention in section;

FIG. 15 is a schematic structural view of a film breaking and brushing device;

FIG. 16 is a schematic view of the structure of part A of FIG. 15;

FIG. 17 is a schematic view of the structure of the roller line of the present invention;

FIG. 18 is a schematic view of the structure of part A of FIG. 17;

FIG. 19 is a schematic view of a roller sprocket installation;

the reference numbers in the figures are: 1-a frame, 2-a cantilever device, 3-a film frame, 4-a film clamping device, 5-a film breaking and brushing device, 6-a roller line, 7-a control console, 8-a motor fixing top plate, 9-a motor fixing side plate II, 10-angle steel I, 11-a motor fixing bottom plate, 12-a bearing seat, 13-a motor fixing side plate I, 14-a sliding rail, 15-an open chain, 16-a longitudinal cantilever, 17-a transverse cantilever, 18-a bearing I with a seat, 19-a sprocket shaft I, 20-a cantilever sprocket I, 21-a lower limit switch, 22-a roller, 23-a sliding block, 24-a floating joint, 25-a spiral buckle, 26-a chain connecting rod, 27-a film frame connecting plate, 28-a bearing II with a seat, 29-a cantilever sprocket II, 30-upper limit switch, 31-sprocket shaft II, 32-cantilever longitudinal motor, 33-cantilever lower connecting flange, 34-shaft end nut, 35-cantilever upper connecting flange, 36-thrust roller bearing, 37-central shaft, 38-coupler, 39-cantilever transverse motor, 40-film frame side plate, 41-film frame bottom plate, 42-top cover, 43-packaging film, 44-film frame sprocket III, 45-chain II, 46-film frame sprocket I, 47-film frame top plate, 48-chain I, 49-film frame motor sprocket, 50-film frame motor, 51-angle steel II, 52-seated bearing III, 53-driven roller, 54-roller side plate, 55-handle, 56-bolt, 57-packaging film bracket, 58-driving roller II, 59-driving roller I, 60-height measuring photoelectric switch, 61-film frame chain wheel II, 62-tension sensing photoelectric switch, 63-stop block, 64-tension sensing spring, 65-perforated screw, 66-roller connecting plate I, 67-tension sensing roller II, 68-tension sensing roller I, 69-roller connecting plate II, 70-lug seat I, 71-film clamping device shell, 72-film clamping plate, 73-rocker, 74-film clamping device bottom plate, 75-film clamping cylinder, 76-lug seat II, 77-film clamping device support, 78-belt seat bearing IV, 79-gear shaft, 80-gear, 81-cylinder seat, 82-large arm cylinder, 83-large arm cylinder lug seat, 84-large arm lug seat, 85-big arm, 86-small arm positioning plate, 87-small arm, 88-small arm cylinder lug seat I, 89-small arm cylinder, 90-small arm cylinder lug seat II, 91-roller support connecting plate, 92-roller support, 93-heating wire support, 94-heating wire, 95-film brushing roller, 96-conveying roller, 97-roller chain wheel I, 98-roller chain wheel II, 99-roller line motor, 100-roller motor chain wheel, 101-roller motor chain, 102-roller chain, 103-roller frame and 104-cargo positioning photoelectric switch.

Detailed Description

Example 1: as shown in fig. 1-19, a cantilever winding machine comprises a frame 1, a cantilever device 2, a film frame 3, a film clamping device 4, a film cutting and brushing device 5 and a roller line 6; the cantilever device 2 and the film breaking and brushing device 5 are arranged on the frame 1; the cantilever device 2 is used for driving the film frame 3 arranged on the cantilever device 2 to move up and down and driving the film frame 3 to rotate along with the cantilever device 2 in the horizontal direction (namely, rotate around an article to be wrapped); the film frame 3 is used for pre-stretching the packaging film 43 and sending out the packaging film 43, is driven by the cantilever device 2 to move up and down, and is used for rotating along with the cantilever device 2 in the horizontal direction; the film clamping device 4 is used for clamping/loosening the packaging film 43; the film breaking and brushing device 5 is used for fusing and brushing the packaging film 43; a roller line 6 for conveying the articles to be wrapped.

Further, a console 7 may be provided; the goods positioning photoelectric switch 104 in the roller line 6 transmits the in-place signal of the article to be wrapped to the console 7, and the console 7 receives the signal and controls the film frame motor 50 in the film frame 3, the cantilever longitudinal motor 32 in the cantilever device 2 and the cantilever transverse motor 39 in the cantilever device 2 to cooperatively work through the PLC; the control console 7 controls the operation of the cantilever transverse motor 39 through the PLC to drive the film frame 3 to rotate in the horizontal direction along with the cantilever device 2, controls the operation of the cantilever longitudinal motor 32 through the PLC to drive the film frame 3 to move up and down along the longitudinal cantilever 16 in the cantilever device 2, and controls the operation of the film frame motor 50 through the PLC to drive the packaging film 43 to be discharged; the console 7 controls the rotating speed of the cantilever transverse motor 39 and the cantilever longitudinal motor 32 through the PLC, so as to realize the adjustment of the wrapping layer number of the articles to be wrapped by the packaging film 43; the PLC is used for controlling the rotating speed of the cantilever transverse motor 39 and the film frame motor 50 to realize the adjustment of the stretch ratio of the packaging film 43; the height measuring photoelectric switch 60 in the film frame 3 transmits the sensed height signal of the article to be wrapped to the console 7, the console 7 further controls the cantilever longitudinal motor 32 to rotate reversely through the PLC, and the longitudinal cantilever 16 in the cantilever device 2 drives the film frame 3 to descend through chain transmission; when the film frame 3 runs to the limit position, the slide block 23 in the cantilever device 2 can trigger the upper limit switch 30 and the lower limit switch 21 which are arranged at the two ends of the longitudinal cantilever 16, the upper limit switch 30 and the lower limit switch 21 transmit signals to the console 7, and the console 7 correspondingly changes the steering direction of the longitudinal cantilever motor 32 through the PLC, so that the film frame 3 works in a safe range; the tension in the film frame 3 induces the signal that the photoelectric switch 62 transmits to the console 7, and the adjustment of the film discharging speed of the packaging film 43 is realized by controlling the rotating speed of the film frame motor 50 through the PLC. When the tension sensing roller I68 rotates along the axis thereof, the stop block 63 rotates along with the roller connecting plate I66, the tension sensing spring 64 is stressed and stretched, when the stop block 63 moves to the working range of the tension sensing photoelectric switch 62, the tension sensing photoelectric switch 62 is triggered, the tension sensing photoelectric switch 62 transmits a signal to the console 7, and the PLC controls and adjusts the rotating speed of the film frame motor 50, so that the film discharging speed is adjusted, and the packaging film 43 is prevented from being broken due to too large tension; when the tension of the packaging film 43 is smaller than a certain value, the tension sensing photoelectric switch 62 is not triggered, and the rotating speed of the film frame motor 50 is adjusted, so that the film discharging speed is adjusted, the packaging film 43 keeps a certain tension, and the packaging quality is ensured.

Further, the cantilever device 2 can be arranged to include a motor fixing top plate 8, a motor fixing side plate II 9, an angle iron I10 motor fixing bottom plate 11, a bearing seat 12, a motor fixing side plate I13, a slide rail 14, an open chain 15, a longitudinal cantilever 16, a transverse cantilever 17, a belt seat bearing I18, a sprocket shaft I19, a cantilever sprocket wheel I20, a lower limit switch 21, a roller 22, a slider 23, a floating joint 24, a turnbuckle 25, a chain connecting rod 26, a film frame connecting plate 27, a belt seat bearing II 28, a cantilever sprocket wheel II 29, an upper limit switch 30, a sprocket shaft II 31, a cantilever longitudinal motor 32, a cantilever lower connecting flange 33, a shaft end nut 34, a cantilever upper connecting flange 35, a roller thrust bearing 36, a central shaft 37, a coupler 38 and a cantilever transverse motor 39; wherein, the connecting flange of the cantilever longitudinal motor 32 is connected with one side of one end of the longitudinal cantilever 16 by a bolt, so that the cantilever longitudinal motor 32 is fixed on the longitudinal cantilever 16; the other side of one end of the longitudinal cantilever 16 is fixedly connected with the second seated bearing 28 through a bolt, one end of a chain wheel shaft II 31 is supported by the second seated bearing 28, the other end of the chain wheel shaft II 31 is matched with an inner hole of a longitudinal cantilever motor 32 and is connected through a key to transmit the rotary motion and the torque of the longitudinal cantilever motor 32, and a cantilever chain wheel II 29 is fixedly connected to the middle of the chain wheel shaft II 31 through a key; the other ends of the belt seat bearing I18 and the longitudinal cantilever 16 are fixedly connected through bolts, two ends of a chain wheel shaft I19 are respectively supported by the belt seat bearing I18, and a cantilever chain wheel I20 is fixedly connected to the middle of the chain wheel shaft I19 through a key; the two slide rails 14 are respectively arranged on the inner sides of the longitudinal cantilevers 16 by screws; the sliding block 23 is fixedly connected with the film frame connecting plate 27 through welding, the 4 idler wheels 22 are respectively connected with two sides of the sliding block 23 through screws and can roll in the sliding rail 14, the first chain connecting rod 26, the turnbuckle 25, the floating joint 24, the sliding block 23 and the second chain connecting rod 26 are sequentially connected through threads, the two chain connecting rods 26 are respectively connected with two ends of the open chain 15 through pin shafts to form a closed-loop chain, the closed-loop chain is matched with the cantilever chain wheel I20 and the cantilever chain wheel II 29 to drive the sliding block 23 and the film frame connecting plate 27 to ascend and descend along the sliding rail 14, and the film frame connecting plate 27 is fixedly connected with the film frame side plate 40 in the film frame 3 through bolts, so that the film frame 3 is driven to ascend and; the upper limit switch 30 and the lower limit switch 21 are respectively positioned at the upper end and the lower end of the slide rail 14 and are fixedly connected to the inner side of the longitudinal cantilever 16 by screws; one end of the transverse cantilever 17 is fixedly connected with one end of the longitudinal cantilever 16 through welding; the motor fixing side plate I13 and the motor fixing bottom plate 11 are both welded on the rack 1, a motor fixing top plate 8 and the motor fixing side plate I13, a motor fixing top plate 8 and a motor fixing side plate II 9, and a motor fixing bottom plate 11 and the motor fixing side plate II 9 are connected through an angle steel I10 and a bolt, a bearing seat 12 and the motor fixing bottom plate 11 are fixedly connected through a bolt, a connecting flange of a cantilever transverse motor 39 is fixedly connected with the motor fixing top plate 8 through a bolt, a shaft of the cantilever transverse motor 39 is connected with a central shaft 37 through a coupler 38 and a key, a thrust roller bearing 36 is fixed in the bearing seat 12 on the motor fixing bottom plate 11 and matched with the central shaft 37, and a central hole of the connecting flange 35 on the cantilever is matched with the central shaft 37 and fixed on the central shaft 37; the lower connecting flange 33 of the cantilever welded to the transverse cantilever 17 is connected to the upper connecting flange 35 of the cantilever by bolts, and transmits the rotation motion and torque of the transverse motor 39 of the cantilever to drive the rotation of the cantilever device 2 in the horizontal direction.

Further, the film frame 3 can be arranged to comprise a film frame side plate 40, a film frame bottom plate 41, a top cover 42, a packaging film 43, a film frame chain wheel III 44, a chain II 45, a film frame chain wheel I46, a film frame top plate 47, a chain I48, a film frame motor chain wheel 49, a film frame motor 50, angle steel II 51, a belt seat bearing III 52, a driven roller 53, a roller side plate 54, a handle 55, a bolt 56, a packaging film support 57, a driving roller II 58, a driving roller I59, a height measuring photoelectric switch 60, a film frame chain wheel II 61, a tension sensing photoelectric switch 62, a stopper 63, a tension sensing spring 64, a perforated screw 65, a roller connecting plate I66, a tension sensing roller II 67, a tension sensing roller I68, a connecting plate II 69 and an ear seat I70; the film frame side plate 40 and the film frame top plate 47 and the film frame side plate 40 and the film frame bottom plate 41 are connected through an angle steel II 51 and a bolt, the top cover 42 and the film frame top plate 47 are connected through a screw, the film frame side plate 40 and the film frame connecting plate 27 in the cantilever device 2 are fixedly connected through a bolt, and the film frame 3 is driven to lift along the longitudinal cantilever 16 through chain transmission in the longitudinal cantilever 16 in the cantilever device 2; the packaging film bracket 57 is connected with the film bracket bottom plate 41 through screws, the inner hole of the packaging film 43 is matched with the packaging film bracket 57, and the packaging film 43 can rotate along the axis thereof; the height-measuring photoelectric switch 60 is fixedly connected to the top cover 42 through a screw; the foot seat of the film frame motor 50 is connected with the film frame side plate 40 by a screw, so that the film frame motor 50 is fixed on the film frame side plate 40; the lower part of the film frame top plate 47 and the upper part of the film frame bottom plate 41 are provided with 6 bearings III 52 with seats fixed through screws, and the bearings III are respectively matched with shafts of a driving roller I59, a driving roller II 58 and a tension sensing roller I68, so that the driving roller I59, the driving roller II 58 and the tension sensing roller I68 can rotate along respective axes; the film frame chain wheel I46 and the film frame chain wheel II 61 are matched with a shaft of a driving roller I59, the film frame chain wheel III 44 is matched with a shaft of a driving roller II 58 and is circumferentially positioned through a key, so that the film frame chain wheel I46 and the film frame chain wheel II 61 can synchronously rotate with the driving roller I59, the film frame chain wheel III 44 can synchronously rotate with the driving roller II 58, the film frame motor chain wheel 49 and the film frame chain wheel I46 are matched and connected through a chain I48, the film frame chain wheel II 61 and the film frame chain wheel III 44 are matched and connected through a chain II 45, the film frame motor 50 drives the driving roller I59 to rotate through the chain I48, and the driving roller I59 drives the driving roller II 58 to rotate through the chain II 45; the tension sensing photoelectric switch 62 is connected with the film frame top plate 47 through screws, the perforated screws 65 are connected with one side of the tension sensing photoelectric switch 62 on the film frame top plate 47, one end of the tension sensing spring 64 is connected with the perforated screws 65, the other end of the tension sensing spring 64 is connected with the stop block 63, the stop block 63 is matched with the roller connecting plate I66 through a shaft and a hole, the tension sensing roller I68 is matched with the roller connecting plate I66 and the roller connecting plate II 69 through a shaft and a hole, and the tension sensing roller II 67 is connected with the roller connecting plate I66 and the roller connecting plate II 69 through screws, so that the stop block 63, the roller connecting plate I66, the tension sensing roller II 67, the tension sensing roller I68 and the roller connecting plate II 69 can synchronously rotate around the axis of the tension sensing roller I68; the driven roller 53 is connected with the roller side plate 54 through screws, the driven roller 53 can rotate along the axis of the driven roller, the roller side plate 54 is connected with the film frame bottom plate 41 through an ear seat I70 and a pin shaft, the roller side plate 54 can rotate relative to the film frame bottom plate 41, the handle 55 and the two bolts 56 are respectively fixed on the upper part of the outer side of the roller side plate 54 through screws, and the shafts of the bolts 56 can be matched with corresponding hole positions on the film frame top plate 47 to realize the opening and closing of the roller side plate 54.

Further, the film clamping device 4 can be arranged to comprise a film clamping device shell 71, a film clamping plate 72, a rocker 73, a film clamping device bottom plate 74, a film clamping cylinder 75, an ear seat II 76, a film clamping device bracket 77, a bearing IV 78 with a seat, a gear shaft 79 and a gear 80; wherein the film clamping device shell 71 is connected with the film clamping device bottom plate 74 through screws, and the film clamping device shell 71 is connected with the film clamping device bracket 77 through screws; the inner side of the film clamping device shell 71 is provided with 4 bearings IV 78 with seats fixed by bolts, and the bearings IV are respectively matched with two gear shafts 79, so that the gear shafts 79 can rotate along respective axes; holes on the film clamping plate 72, the gear 80 and the rocker 73 are matched with the gear shaft 79 and are circumferentially fixed through keys, so that the film clamping plate 72, the gear 80, the rocker 73 and the gear shaft 79 synchronously rotate; ear seat II 76 welds on pressing from both sides membrane device bottom plate 74, through the round pin hub connection between two 76 ear seats of film clamping cylinder 75 afterbody and the ear seat, through the round pin hub connection between the piston rod tip of film clamping cylinder 75 and the rocker 73, the piston rod promotes the rocker 73 and rotates to it is rotatory to drive gear shaft 79, and two gears 80 intermeshing drive presss from both sides the diaphragm plate 72 and realizes opening and closing.

Further, the film breaking and film brushing device 5 can be arranged to comprise a cylinder seat 81, a large arm cylinder 82, a large arm cylinder lug seat 83, a large arm lug seat 84, a large arm 85, a small arm positioning plate 86, a small arm 87, a small arm cylinder lug seat I88, a small arm cylinder 89, a small arm cylinder lug seat II 90, a roller support connecting plate 91, a roller support 92, a heating wire support 93, a heating wire 94 and a film brushing roller 95; wherein, the cylinder seat 81 is fixedly connected on the frame 1 through a bolt, and the tail part of the large-arm cylinder 82 is connected with the cylinder seat 81 through a pin shaft; the big arm ear seat 84 is welded on the frame 1, and the big arm 85 is connected with the big arm ear seat 84 through a pin shaft; the large arm cylinder lug seat 83 is welded on the large arm 85, the end part of the piston rod of the large arm cylinder 82 is connected with the large arm cylinder lug seat 83 through a pin shaft, and the large arm cylinder 82 pushes the large arm 85 to rotate; the small arm positioning plate 86 is connected with the large arm 85 through a bolt, and the small arm 87 is connected with the small arm positioning plate 86 through a screw; the small arm cylinder lug seat I88 is welded on the small arm 87, and the tail part of the small arm cylinder 89 is connected with the small arm cylinder lug seat I88 through a pin shaft; the film brushing roller 95 is connected with the roller bracket 92 through a screw, the roller bracket 92 is fixedly connected with the roller bracket connecting plate 91 through welding, and the roller bracket connecting plate 91 is connected with the small arm 87 through a pin shaft; the small arm cylinder lug seat II 90 is welded on the roller bracket connecting plate 91, the end part of the piston rod of the small arm cylinder 89 is connected with the small arm cylinder lug seat II 90 through a pin shaft, and the small arm cylinder 89 pushes the roller bracket connecting plate 91 to rotate so as to push the roller bracket 92 and the film brushing roller 95 to rotate; the heater wire support 93 is fixedly connected with the small arm 87 through a screw, and the heater wire 94 is connected with the hole position on the heater wire support 93 in a matching way.

Further, the roller line 6 can be arranged right below the cantilever device 2, and comprises a conveying roller 96, a roller chain wheel I97, a roller chain wheel II 98, a roller line motor 99, a roller motor chain wheel 100, a roller motor chain 101, a roller chain 102, a roller frame 103 and a cargo positioning photoelectric switch 104; wherein, one end of the shaft of the transmission roller 96 is matched with a hole position on the roller frame 103, and the other end of the transmission roller 96 is connected with the roller frame 103 through a screw; the foot seat of the roller wire motor 99 is fixedly connected with the roller frame 103 through a bolt, so that the roller wire motor 99 is fixedly connected with the roller frame 103; the roller chain wheel I97 and the roller chain wheel II 98 are arranged at one end of the shaft of the conveying roller 96 and rotate synchronously with the conveying roller 96; the roller line motor 99 is connected with the roller motor chain wheel 100 through a key, the roller motor chain wheel 100 is connected with the roller chain wheel I97 through a roller motor chain 101, so that the roller line motor 99 can drive the conveying rollers 96 to rotate through chain transmission, the roller chain wheel II 98 on the conveying rollers 96 connected with the roller line motor 99 through the chain transmission is connected with the roller chain wheel II 98 on the second conveying roller 96 through a roller chain 102, the roller chain wheel I97 on the second conveying roller 96 is connected with the roller chain wheel I97 on the third conveying roller 96 through the roller chain 102, and every two conveying rollers 96 are connected through the roller chain 102. That is, from the second conveying roller 96, every two conveying rollers 96 are connected by a roller chain 102, so that the roller line motor 99 can drive all the conveying rollers 96 to rotate in sequence through chain transmission to realize the function of conveying goods; the goods positioning photoelectric switch 104 is connected with the roller frame 103 through screws.

in the formula: i represents the stretch ratio of the wrapping film 43; n is₁Represents the cantilever traverse motor 39 speed; n is₃Indicates the speed of the film frame motor 50; d₁Represents the diameter of rotation of the transverse boom 17 in the boom apparatus 2; d₂The diameter of the driving roller I59 is shown; z is a radical of₂The number of teeth of a film frame motor chain wheel 49 is shown; z is a radical of₃The tooth number of the film frame chain wheel I46 is shown; z is a radical of₄The tooth number of the film frame chain wheel II 61 is shown; z is a radical of₅Showing the number of teeth on film frame sprocket III 44.

Further, the stretch ratio may be set to be adjusted within a range of 208% to 400%.

The working process of the invention is as follows: except that the packaging film 43 needs to be manually installed on the film frame 3 and the steps of film threading and film clamping are completed when the packaging film 43 is used and replaced for the first time, the whole working process can be controlled by the control console 7 through the PLC. In an initial state, the film clamping device 4 clamps the free end of the packaging film 43 to wait for the object to be wrapped to be in place; when the roller line 6 conveys the stacked objects to be wrapped to the designated position of the packaging station, the goods positioning photoelectric switch 104 on the side surface of the frame 1 of the roller line 6 is triggered, the console 7 receives the signal, and the cantilever transverse motor 39 works; the film frame 3 starts to send the film, the packaging film 43 moves along with the cantilever device 2 to wrap the object to be wrapped, at the moment, the cantilever longitudinal motor 32 does not work, after the packaging film 43 wraps the bottom of the object to be wrapped for 1 circle, the film clamping plate 72 which clamps the free end of the packaging film 43 in advance is opened, the packaging film 43 continues to wrap the bottom of the object to be wrapped for 2 to 3 circles, and the free end of the packaging film 43 is wrapped on the surface of the object to be wrapped to prevent the object to be wrapped from loosening; then, the cantilever longitudinal motor 32 and the cantilever transverse motor 39 work simultaneously, so that the film frame 3 moves upwards along the articles to be wrapped, and the articles to be wrapped are wrapped circle by circle; when the film frame 3 moves to the top of an article to be wrapped, the height measuring photoelectric switch 60 on the film frame 3 is triggered, the cantilever longitudinal motor 32 stops working, after the top of the packaging film 43 is packaged for a plurality of circles, the cantilever longitudinal motor 32 rotates reversely to drive the film frame 3 to move downwards, the article to be wrapped is wrapped for the second time circle by circle, and the film frame 3 can reciprocate up and down according to preset parameters to reach the expected number of wrapping layers; when the package is finished, the film clamping device 4 works, the film clamping plate 72 clamps the package film 43 tightly, the cantilever transverse motor 39 and the cantilever longitudinal motor 32 stop rotating immediately, the cantilever device 2 and the film frame 3 both move to the initial setting position, then the film breaking and brushing device 5 works, the large arm cylinder 82 drives the large arm 85 to move to the preset position, the package film 43 is fused by the heating wire 94 after the large arm cylinder 2 and the film frame 3 are in place, the small arm cylinder 89 pushes the roller bracket 92 to rotate, so that the film brushing roller 93 is pressed on the surface of the object to be packaged with a certain pressure, and the relative positions of the cantilever device 2, the film frame 3, the film clamping device 4 and the film breaking and brushing device 5 are shown in fig. 1; and then the roller line 6 works, the object to be wrapped moves forwards, the film brushing roller 93 gradually separates from the surface of the object to be wrapped, the free end of the packaging film 43 is pressed, the film brushing step is completed, the film cutting and brushing device 5 returns to the initial position, one packaging cycle is completed, and a new cycle is started after the next object to be wrapped is in place.

The working principle of the whole cantilever winding machine is as follows: before the object to be wrapped is in place, the free end of the packaging film 43 on the film frame 3 connected to the longitudinal cantilever 16 is clamped by the film clamping device 4 and is positioned on one side of the bottom of the object to be wrapped; after the object to be wrapped is in place, the cantilever transverse motor 39 works to drive the cantilever to rotate in the horizontal direction integrally, meanwhile, the film frame motor 50 works to send the film outwards, and the packaging film 43 horizontally rotates along with the cantilever device 2 to wrap the outer surface of the object to be wrapped so as to wrap the outer surface of the object to be wrapped in the horizontal direction; after winding a plurality of circles, the film clamping device 4 loosens the packaging film 43, the cantilever longitudinal motor 32 works to drive the film frame 3 to move in the vertical direction, and the outer surfaces of the articles to be wrapped are wrapped circle by circle until the packaging film 43 completely wraps the articles to be wrapped. And after the object to be wrapped is packaged, the film frame 3 is reset, the film clamping device 4 clamps the packaging film 43 again, the film cutting and brushing device 5 melts the packaging film 43 and brushes the film, one cycle is completed, and the film cutting and brushing device returns to the initial position to wait for the next cycle.

In the cantilever device 2, the rotation speed of the cantilever transverse motor 39 is recorded as n₁The rotational speed of the longitudinal cantilever motor 32 is denoted as n₂Cantilever transverse motor 39 reduction ratio i₁The boom longitudinal motor 32 reduces the ratio i, 100₂150 cantilever sprocket tooth number z₁15, chain number 12A, i.e. a 12, the diameter of rotation d of the transverse cantilever 17₁＝2000mm。

In the film frame 3 device, the rotating speed of a film frame motor 50 is recorded as n₃The rotating speed of the driving roller I59 is marked as n₄The rotating speed of the driving roller II 58 is recorded as n₅Number of teeth z of film frame motor sprocket 49₂Number of teeth z of film frame sprocket I46 ═ 11₃23, film frame sprocket II 61 tooth number z ₄13, film frame sprocket III 44 tooth number z ₅27, diameter d of driving roller I59₂80mm, diameter d of driving roller II 58₃The width h of the packaging film 43 is 500mm, 80 mm.

The calculation formula of the number n of wrapping layers of the articles to be wrapped by the wrapping film 43 is as follows:

The data is substituted into formula (1), and the calculation formula of the number n of the wrapping layers of the article to be wrapped by the packaging film 43 is simplified as follows:

in the formula: n represents the number of wrapping layers of the wrapping film 43 for the article to be wrapped; n is₁Represents the cantilever traverse motor 39 speed; n is₂Indicating the rotational speed of the boom longitudinal motor 32.

According to the formula (2), under the condition that other parameters are fixed, the number of the wrapping layers of the articles to be wrapped by the cantilever winding machine is determined by the rotating speed n of the cantilever transverse motor 39₁And cantilever longitudinal motor 32 speed n₂And (6) adjusting. When the number n of the wrapping layers is 1 layer, 2 layers and 3 layers respectively, the rotating speed n of the corresponding cantilever transverse motor 39 is₁And cantilever longitudinal motor 32 speed n₂Ratio n of₁/n₂0.006, 0.012 and 0.018 in sequence. In practical application, the packaging method is adjusted according to factors such as the type of the packaged articles to be wrapped, the storage environment and the like so as to achieve a qualified packaging effect. The rotational speed n of the boom transverse motor 39 is preset by operating in the control console 7₁With the rotation speed n of the cantilever longitudinal motor 32₂The PLC program controls the rotating speed of the corresponding motor, thereby realizing the adjustment of the number of the wrapping layers. If other requirements are actually made on the number of the wrapping layers, the method can be expressed according to the formula(2) Self-adjusting cantilever transverse motor 39 rotation speed n₁With the rotation speed n of the cantilever longitudinal motor 32₂And writing a corresponding PLC program.

The degree of tightness of the wrapping film 43 for wrapping the article to be wrapped is determined by the stretch ratio i of the wrapping film 43, and the calculation formula of i is as follows:

in the formula: i represents the stretch ratio of the wrapping film 43; l' represents the length of the packaging film 43 after stretching; l represents the initial length of the wrapping film 43.

In the cantilever winding machine, the stretch ratio i of the packaging film 43 is calculated as follows:

in the formula: i represents a stretch ratio i of the packaging film 43; n is₁Represents the cantilever traverse motor 39 speed; n is₃Indicates the speed of the film frame motor 50; d₁The representation represents the diameter of rotation of the lateral cantilever 17; d₂The diameter of the driving roller I59 is shown; z is a radical of₂The number of teeth of a film frame motor chain wheel 49 is shown; z is a radical of₃The tooth number of the film frame chain wheel I46 is shown; z is a radical of₄The tooth number of the film frame chain wheel II 61 is shown; z is a radical of₅Showing the number of teeth on film frame sprocket III 44.

Substituting the above data into equation (4), the calculation equation of the stretch ratio i of the packaging film 43 is simplified as:

in the formula: i represents a stretch ratio i of the packaging film 43; n is₁Represents the cantilever traverse motor 39 speed; n is₃Indicating the speed of the film frame motor 50.

The film frame 3 is a pre-stretching film frame, the packaging film 43 will be stretched in the film frame 3, and the pre-stretching ratio i' is calculated according to the following formula:

in the formula: i' -pre-stretch ratio of packaging film 43; z is a radical of₄The number of teeth of the film frame chain wheel II 61; z is a radical of₅The number of teeth of the film frame chain wheel III 44 is reduced; d₂-diameter of the active drum i 59; d₃The diameter of the driving roller II 58. Known data were substituted into formula (6) to obtain a draw-down ratio i' of 208% for the film frame 3.

The longer the wrapping film 43 is stretched, the greater its stretch ratio and the greater the tension, the tighter the wrapping of the article to be wrapped and the looser it is. Because the cantilever packagine machine treats the parcel article and wraps up the purpose be prevent treat the parcel article in the damage of handling, dustproof, dampproofing and clean-keeping, do not have accurate requirement to the size of wrapping film 43 tensile force, only need according to treat the tensile ratio adjustment wrapping film 43 of factors such as the kind of parcel article, storage environment, reach qualified packing effect can. After investigation, the commercial packaging film 43 can generally reach a maximum draw ratio of 400%, and since the film frame 3 has a pre-draw ratio of 208%, as shown in formula (5), the rotation speed n of the cantilever transverse motor 39 can be adjusted₁And the speed n of the film frame motor 50₃The stretch ratio i of the packaging film 43 is adjusted within the range of 208-400%, so that the tightness degree of the packaging film 43 is adjusted, and the stretch ratio i is adjusted according to factors such as the type of articles to be wrapped and the storage environment in practical application, so as to achieve a qualified packaging effect.

The cantilever winding machine takes a common packaging film 43 with the maximum stretching ratio of 400% on the market as an example, the tightness degree of the packaging film 43 is divided into four grades of loose, moderate, tight and tight, the corresponding stretching ratios are 208%, 250%, 300%, 350% and 400% in sequence, and the corresponding rotating speed n of the cantilever transverse motor 39 is₁With the speed n of the film frame motor 50₃Ratio n of₁/n₃0.039, 0.046, 0.056, 0.065 and 0.074 in sequence. The rotational speed n of the boom transverse motor 39 is preset by operating in the control console 7₁With the speed n of the film frame motor 50₃The PLC program controls the rotating speed of the corresponding motor, thereby realizing the adjustment of the tightness degree of the packaging film 43. If in fact to the packaging filmWhen the tightness degree of 43 has other requirements, the packaging film 43 with higher maximum stretching ratio can be selected, and on the premise that the stretching ratio i of the packaging film 43 is larger than or equal to the pre-stretching ratio i' of 208%, the rotating speed n of the cantilever transverse motor 39 can be automatically adjusted according to the formula (5)₁And the speed n of the film frame motor 50₃And writing a corresponding PLC program.

The working principle of the cantilever device 2 of the cantilever winding machine is as follows: cantilever device 2 needs to drive film frame 3 on the one hand and rotates in the horizontal direction, needs to drive film frame 3 on the one hand and goes up and down on the horizontal direction to the whole packing of parcel article is treated in the completion. The transverse cantilever 17 and the longitudinal cantilever 16 are fixedly connected through welding; a connecting flange of a cantilever transverse motor 39 is connected with a motor fixing top plate 8 through a bolt, so that the cantilever transverse motor 39 is fixed on the motor fixing top plate 8, a shaft of the cantilever transverse motor 39 is connected with a central shaft 37 through a coupler 38 and a key, a thrust roller bearing 36 is fixed in a bearing seat 12 on a motor fixing bottom plate 11 and matched with the central shaft 37, and a central hole of a connecting flange 35 on a cantilever is matched with the central shaft 37 and fixed on the central shaft 37 through a shaft end nut 34; the lower connecting flange 33 of the cantilever welded to the transverse cantilever 17 is connected to the upper connecting flange 35 of the cantilever by bolts, and transmits the rotation motion and torque of the transverse motor 39 of the cantilever to drive the rotation of the cantilever device 2 in the horizontal direction. One end of a chain wheel shaft II 31 is supported by the bearing with a seat I18, the other end of the chain wheel shaft II 31 is matched with an inner hole of the cantilever longitudinal motor 32 and is connected with the inner hole through a key to transmit the rotary motion and the torque of the cantilever longitudinal motor 32, and a cantilever chain wheel II 29 is fixedly connected to the middle part of the chain wheel shaft II 31 through a key; two ends of a chain wheel shaft I19 are respectively supported by a bearing with a seat I18, and a cantilever chain wheel I20 is fixedly connected to the middle part of the chain wheel shaft I19 through a key; the connecting flange of the cantilever longitudinal motor 32 is connected with the longitudinal cantilever 16 by a bolt, so that the cantilever longitudinal motor 32 is fixed on the longitudinal cantilever 16; the two slide rails 14 are respectively arranged on the inner sides of the longitudinal cantilevers 16 by screws; the sliding block 23 is fixedly connected with the film frame connecting plate 27 through welding; the 4 rollers 22 are respectively connected to two sides of the sliding block 23 through screws and can roll in the sliding rail 14, the chain connecting rod 26, the turnbuckle 25, the floating joint 24, the sliding block 23, the film frame connecting plate 27 and the chain connecting rod 26 are sequentially connected with each other through threads, the two chain connecting rods 26 are respectively connected with two ends of the open chain 15 through pin shafts to form a closed-loop chain, the closed-loop chain is matched with the cantilever chain wheel I20 and the cantilever chain wheel II 29 to drive the sliding block 23 and the film frame connecting plate 27 to lift along the sliding rail 14, and the film frame connecting plate 27 is fixedly connected with the film frame side plate 40 through bolts, so that the film frame 3 is driven to lift along the longitudinal; the upper limit switch 30 and the lower limit switch 21 are respectively positioned at the upper end and the lower end of the slide rail 14 and are fixedly connected to the inner side of the longitudinal cantilever 16 by screws, so that the membrane frame 3 is limited to lift in a safety range.

The working principle of the film frame 3 of the cantilever winding machine is as follows: in the working process, the shaft of the plug pin 56 is matched with the corresponding hole position on the top plate 47 of the film frame, so that the side plate 54 of the roller is covered. The film frame motor chain wheel 49 is connected with the film frame chain wheel I46 in a matched mode through a chain, the film frame chain wheel II 61 is connected with the film frame chain wheel III 44 in a matched mode through a chain, the film frame motor 50 drives the driving roller I59 to rotate through chain transmission, and the driving roller I59 drives the driving roller II 58 to rotate through chain transmission; the packaging film 43 and the two driving rollers do not slide relatively, and the linear velocity v of the driving roller II 58₂Less than linear velocity v of driving roller I59₁And the packaging film 43 is elongated and generates certain tension to ensure the packaging quality. The pre-stretch ratio i' of the packaging film 43, i.e. the linear speed v of the driving roller I59₁＝πn₄d₂And linear velocity v of driving roller II 58₂＝πn₅d₃Ratio v of₁/v₂The film discharging speed v of the film frame 3 is the linear speed v of the driving roller I59₁＝πn₄d₂(ii) a When the tension of the packaging film 43 changes, the packaging film 43 drives the tension sensing roller I68, the tension sensing roller II 67 and the stop block 63 to rotate for a certain angle together, the tension sensing spring 64 is stressed and stretched, when the stop block 63 moves to the working range of the tension sensing photoelectric switch 62, the tension sensing photoelectric switch 62 is triggered, the tension sensing photoelectric switch 62 transmits a signal to the control console 7, a corresponding PLC program runs, and the rotating speed n of the film frame motor 50 is adjusted₃Thereby adjusting the film discharging speed v and preventing the packaging film 43 from being broken due to too large tension; when the tension of the packaging film 43 is smaller than a certain value, the tension sensing photoelectric switch 62 is not triggered, the corresponding PLC program runs, and the rotating speed n of the film frame motor 50 is adjusted₃Thereby adjusting the film discharging speed v to keep the packaging film 43And the packaging quality is ensured by a certain tension.

The working principle of the film clamping device 4 of the cantilever winding machine is as follows: the film clamping device 4 is used for clamping the packaging film 43 when the packaging film 43 finishes wrapping the object to be wrapped, and completing the film cutting and brushing steps by matching with the film cutting and brushing device 5 to prepare for the next packaging cycle. The film clamping device shell 71 is connected with the film clamping device bottom plate 74 through screws, and the film clamping device shell 71 is connected with the film clamping device bracket 77 through screws; the inner side of the film clamping device shell 71 is provided with 4 bearings IV 78 with seats fixed by bolts, and the bearings IV are respectively matched with two gear shafts 79, so that the gear shafts 79 can rotate along respective axes; holes on the film clamping plate 72, the gear 80 and the rocker 73 are matched with the gear shaft 79 and are circumferentially fixed through keys, so that the film clamping plate 72, the gear 80, the rocker 73 and the shaft synchronously rotate; ear seat II 76 welds on pressing from both sides membrane device bottom plate 74, through the round pin hub connection between two 76 ear seats of film clamping cylinder 75 afterbody and the piston rod end and the rocker 73 through the round pin hub connection, and the piston rod promotes the rocker 73 and rotates to it is rotatory to drive gear shaft 79, and two gears 80 intermeshing drive presss from both sides the diaphragm 72 and realizes opening and closing.

The working principle of the film breaking and brushing device 5 of the cantilever winding machine is as follows: in the film breaking and brushing device 5, the rack 1, the large arm cylinder 82 and the large arm 85 are sequentially connected through hinges to form a crank rocker mechanism, and the small arm 87, the small arm cylinder 89 and the roller bracket connecting plate 91 are sequentially connected through hinges to form a crank rocker mechanism. After the packaging is finished, the large arm cylinder 82 pushes the large arm 85 to rotate, the film breaking and brushing device 5 moves to a preset position, the packaging film 43 can be fused by the heating wire 94 after the packaging is in place, the small arm cylinder 89 pushes the roller support 92 to rotate, the film brushing roller 93 is pressed on the surface of the object to be wrapped with a certain pressure, then the roller line 6 works, the object to be wrapped moves forwards, the film brushing roller 93 gradually breaks away from the surface of the object to be wrapped, the free end of the packaging film 43 is pressed, and the film brushing step is finished.

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A method for calculating the number of wrapping layers of an article to be wrapped by a packaging film in a cantilever winding machine is characterized by comprising the following steps: the method comprises the following steps:

in the formula: n represents the wrapping layer number of the wrapping film (43) to the article to be wrapped; n is₁Representing the rotational speed of the cantilever traverse motor (39); n is₂Representing the rotational speed of the cantilever longitudinal motor (32); i.e. i₁Represents the reduction ratio of the cantilever transverse motor (39); i.e. i₂Represents the reduction ratio of the cantilever longitudinal motor (32); h represents the width of the packaging film (43); z is a radical of₁Represents the tooth number of the cantilever chain wheel II (29); a represents the open chain (15) number;

the cantilever winding machine comprises a rack (1), a cantilever device (2), a film frame (3), a film clamping device (4), a film cutting and brushing device (5) and a roller line (6);

the cantilever device (2) and the film breaking and brushing device (5) are arranged on the rack (1); the cantilever device (2) is used for driving the film frame (3) arranged on the cantilever device (2) to move up and down and driving the film frame (3) to rotate along with the cantilever device (2) in the horizontal direction; the film frame (3) is used for pre-stretching the packaging film (43) and sending out the packaging film (43), is driven by the cantilever device (2) to move up and down and is used for rotating along with the cantilever device (2) in the horizontal direction; the film clamping device (4) is used for clamping/loosening the packaging film (43); the film breaking and brushing device (5) is used for fusing the packaging film (43) and brushing the film; a roller line (6) for conveying the articles to be wrapped;

the cantilever device (2) comprises a motor fixing top plate (8), a motor fixing side plate II (9), angle steel I (10), a motor fixing bottom plate (11), a bearing seat (12), a motor fixing side plate I (13), a sliding rail (14), an open chain (15), a longitudinal cantilever (16), a transverse cantilever (17), a seated bearing I (18), a chain wheel shaft I (19), a cantilever chain wheel I (20), a lower limit switch (21), a roller (22), a sliding block (23), a floating joint (24), a spiral buckle (25), a chain connecting rod (26), a film frame connecting plate (27), a seated bearing II (28), a cantilever chain wheel II (29), an upper limit switch (30), a chain wheel shaft II (31), a cantilever longitudinal motor (32), a cantilever lower connecting flange (33), a shaft end nut (34), a cantilever upper connecting flange (35), a thrust roller bearing (36), A central shaft (37), a coupling (38) and a cantilever transverse motor (39); wherein, a connecting flange of the cantilever longitudinal motor (32) is connected with one side of one end of the longitudinal cantilever (16) by a bolt, so that the cantilever longitudinal motor (32) is fixed on the longitudinal cantilever (16); the other side of one end of the longitudinal cantilever (16) is fixedly connected with the second seated bearing (28) through a bolt, one end of a sprocket shaft II (31) is supported by the second seated bearing (28), the other end of the sprocket shaft II (31) is matched with an inner hole of a longitudinal cantilever motor (32) and connected through a key, the rotary motion and the torque of the longitudinal cantilever motor (32) are transmitted, and a cantilever sprocket II (29) is fixedly connected to the middle of the sprocket shaft II (31) through a key; the other end of the longitudinal cantilever (16) is fixedly connected with the bearing I (18) with the seat through a bolt, two ends of the chain wheel shaft I (19) are respectively supported by the bearing I (18) with the seat, and the cantilever chain wheel I (20) is fixedly connected to the middle part of the chain wheel shaft I (19) through a key; the two slide rails (14) are respectively arranged on the inner sides of the longitudinal cantilevers (16) by screws; the sliding block (23) is fixedly connected with the film frame connecting plate (27) through welding, 4 rollers (22) are respectively connected to two sides of the sliding block (23) through screws and can roll in the sliding rail (14), a first chain connecting rod (26), a screw buckle (25), a floating joint (24), the sliding block (23) and a second chain connecting rod (26) are sequentially in threaded connection, the two chain connecting rods (26) are respectively connected with two ends of an open chain (15) through pin shafts to form a closed-loop chain, the closed-loop chain is matched with a cantilever chain wheel I (20) and a cantilever chain wheel II (29) to drive the sliding block (23) and the film frame connecting plate (27) to lift along the sliding rail (14), and the film frame connecting plate (27) is fixedly connected with a film frame side plate (40) in the film frame (3) through bolts so as to drive the film frame (3) to lift along the longitudinal cantilever chain (16);

the upper limit switch (30) and the lower limit switch (21) are respectively positioned at the upper end and the lower end of the slide rail (14) and are fixedly connected to the inner side of the longitudinal cantilever (16) by screws; one end of the transverse cantilever (17) is fixedly connected with one end of the longitudinal cantilever (16) through welding; the motor fixing side plate I (13) and the motor fixing bottom plate (11) are welded on the frame (1), a motor fixing top plate (8) is arranged between the motor fixing side plate I (13), a motor fixing top plate (8) is arranged between the motor fixing side plate II (9), the motor fixing bottom plate (11) and the motor fixing side plate II (9) are connected through an angle steel I (10) and a bolt, a bearing seat (12) is fixedly connected with the motor fixing bottom plate (11) through a bolt, a connecting flange of a cantilever transverse motor (39) is fixedly connected with a motor fixing top plate (8) through a bolt, a shaft of the cantilever transverse motor (39) is connected with a central shaft (37) through a coupler (38) and a key, a thrust roller bearing (36) is fixed in the bearing seat (12) on the motor fixing bottom plate (11) and matched with the central shaft (37), and a central hole of a connecting flange (35) on a cantilever is matched with the central shaft (37) and fixed on the central shaft (37) through a shaft end nut (34); the lower connecting flange (33) welded on the transverse cantilever (17) is connected with the upper connecting flange (35) of the cantilever through bolts, so that the rotary motion and the torque of the transverse motor (39) of the cantilever are transmitted, and the cantilever device (2) is driven to rotate in the horizontal direction.

2. The method of claim 1, wherein: the cantilever winding machine further comprises a console (7);

the goods positioning photoelectric switch (104) in the roller line (6) transmits an in-place signal of the goods to be wrapped to the control console (7), and the control console (7) receives the signal and controls the film frame motor (50) in the film frame (3), the cantilever longitudinal motor (32) in the cantilever device (2) and the cantilever transverse motor (39) in the cantilever device (2) to cooperatively work through the PLC; the control console (7) controls the operation of the cantilever transverse motor (39) through the PLC to drive the film frame (3) to rotate in the horizontal direction along with the cantilever device (2), controls the operation of the cantilever longitudinal motor (32) through the PLC to drive the film frame (3) to move up and down along the longitudinal cantilever (16) in the cantilever device (2), and controls the operation of the film frame motor (50) through the PLC to drive the packaging film (43) to be discharged; the console (7) controls the rotating speeds of the cantilever transverse motor (39) and the cantilever longitudinal motor (32) through a PLC (programmable logic controller), so that the number of wrapping layers of the articles to be wrapped by the packaging film (43) is adjusted; the rotation speeds of the cantilever transverse motor (39) and the film frame motor (50) are controlled by the PLC, so that the stretching ratio of the packaging film (43) is adjusted;

a height measuring photoelectric switch (60) in the film frame (3) transmits a sensed height signal of an article to be wrapped to a control console (7), the control console (7) controls a cantilever longitudinal motor (32) to rotate reversely through a PLC, and a longitudinal cantilever (16) in a cantilever device (2) drives the film frame (3) to descend through chain transmission; when the film frame (3) runs to the limit position, a sliding block (23) in the cantilever device (2) can trigger an upper limit switch (30) and a lower limit switch (21) which are arranged at two ends of a longitudinal cantilever (16), the upper limit switch (30) and the lower limit switch (21) transmit signals to a control console (7), and the control console (7) correspondingly changes the steering of a longitudinal motor (32) of the cantilever through a PLC (programmable logic controller) so that the film frame (3) works in a safe range;

the tension in the film frame (3) senses a signal transmitted to the console (7) by the photoelectric switch (62), and the speed of the packaging film (43) is adjusted by controlling the rotating speed of the film frame motor (50) through the PLC.

3. The method of claim 1, wherein: the film frame (3) comprises film frame side plates (40), a film frame bottom plate (41), a top cover (42), a packaging film (43), a film frame chain wheel III (44), a chain II (45), a film frame chain wheel I (46), a film frame top plate (47), a chain I (48), a film frame motor chain wheel (49), a film frame motor (50), angle steel II (51), a belt seat bearing III (52), a driven roller (53), a roller side plate (54), a handle (55), a bolt (56), a packaging film support (57), a driving roller II (58), a driving roller I (59), a height measuring photoelectric switch (60), a film frame chain wheel II (61), a tension sensing photoelectric switch (62), a stop block (63), a tension sensing spring (64), a hole screw (65), a roller connecting plate I (66), a tension sensing roller II (67), a tension sensing roller I (68), a roller connecting plate II (69), An ear mount I (70); the film frame side plate (40) is connected with the film frame top plate (47) through an angle steel II (51) and a bolt, the top cover (42) is connected with the film frame top plate (47) through a screw, the film frame side plate (40) is fixedly connected with a film frame connecting plate (27) in the cantilever device (2) through a bolt, and the film frame (3) is driven to lift along the longitudinal cantilever (16) through chain transmission in the longitudinal cantilever (16) in the cantilever device (2); the packaging film support (57) is connected with the film frame bottom plate (41) through screws, the inner hole of the packaging film (43) is matched with the packaging film support (57), and the packaging film (43) can rotate along the axis of the packaging film support; the height measuring photoelectric switch (60) is fixedly connected to the top cover (42) through a screw; the foot seat of the film frame motor (50) is connected with the film frame side plate (40) by a screw, so that the film frame motor (50) is fixed on the film frame side plate (40); the lower part of the film frame top plate (47) and the upper part of the film frame bottom plate (41) are fixedly provided with a bearing III (52) with a seat through screws and are respectively matched with shafts of the driving roller I (59), the driving roller II (58) and the tension sensing roller I (68), so that the driving roller I (59), the driving roller II (58) and the tension sensing roller I (68) can rotate along respective axes; the film frame chain wheel I (46), the film frame chain wheel II (61) and the driving roller I (59) are matched in shaft, the film frame chain wheel III (44) and the driving roller II (58) are matched in shaft and are circumferentially positioned through keys, so that the film frame chain wheel I (46), the film frame chain wheel II (61) and the driving roller I (59) can synchronously rotate, the film frame chain wheel III (44) and the driving roller II (58) can synchronously rotate, the film frame motor chain wheel (49) and the film frame chain wheel I (46) are matched and connected through a chain I (48), the film frame chain wheel II (61) and the film frame chain wheel III (44) are matched and connected through a chain II (45), the film frame motor (50) drives the driving roller I (59) to rotate through the chain I (48), and the driving roller I (59) drives the driving roller II (58) to rotate through the chain II (45); the tension sensing photoelectric switch (62) is connected with the film frame top plate (47) through screws, a perforated screw (65) is connected with one side of the tension sensing photoelectric switch (62) on the film frame top plate (47), one end of a tension sensing spring (64) is connected with the perforated screw (65), the other end of the tension sensing spring (64) is connected with a stop block (63), the stop block (63) is matched with a roller connecting plate I (66) through a shaft and a hole, a tension sensing roller I (68) is matched with a roller connecting plate I (66) and a roller connecting plate II (69) through a shaft and a hole, a tension sensing roller II (67) is connected with the roller connecting plate I (66) and the roller connecting plate II (69) through screws, the stop block (63), the roller connecting plate I (66), the tension sensing roller II (67), the tension sensing roller I (68) and the roller connecting plate II (69) can synchronously rotate around the axis of the tension sensing roller I (68); the driven roller (53) is connected with the roller side plate (54) through screws, the driven roller (53) can rotate along the axis of the driven roller, the roller side plate (54) is connected with the film frame bottom plate (41) through an ear seat I (70) and a pin shaft, the roller side plate (54) can rotate relative to the film frame bottom plate (41), the handle (55) and the two bolts (56) are respectively fixed on the upper part of the outer side of the roller side plate (54) through screws, and the shafts of the bolts (56) can be matched with corresponding hole positions on the film frame top plate (47) to realize the opening and closing of the roller side plate (54).

4. The method of claim 1, wherein: the film clamping device (4) comprises a film clamping device shell (71), a film clamping plate (72), a rocker (73), a film clamping device bottom plate (74), a film clamping cylinder (75), an ear seat II (76), a film clamping device support (77), a bearing IV (78) with a seat, a gear shaft (79) and a gear (80); wherein the film clamping device shell (71) is connected with the film clamping device bottom plate (74) through screws, and the film clamping device shell (71) is connected with the film clamping device bracket (77) through screws; a bearing IV (78) with a seat is fixed on the inner side of the film clamping device shell (71) by bolts and is respectively matched with two gear shafts (79), so that the gear shafts (79) can rotate along respective axes; holes in the film clamping plate (72), the gear (80) and the rocker (73) are matched with the gear shaft (79) and are circumferentially fixed through keys, so that the film clamping plate (72), the gear (80), the rocker (73) and the gear shaft (79) synchronously rotate; ear seat II (76) weld on pressing from both sides membrane device bottom plate (74), through the round pin hub connection between pressing from both sides membrane cylinder (75) afterbody and ear seat II (76), through the round pin hub connection between the piston rod tip of pressing from both sides membrane cylinder (75) and rocker (73), the piston rod promotes rocker (73) rotation to it is rotatory to drive gear shaft (79), and two gear (80) intermeshing drive presss from both sides membrane board (72) and realizes opening and closing.

5. The method of claim 1, wherein: the film breaking and brushing device (5) comprises a cylinder seat (81), a large-arm cylinder (82), a large-arm cylinder lug seat (83), a large-arm lug seat (84), a large arm (85), a small-arm positioning plate (86), a small arm (87), a small-arm cylinder lug seat I (88), a small-arm cylinder (89), a small-arm cylinder lug seat II (90), a roller support connecting plate (91), a roller support (92), a heating wire support (93), a heating wire (94) and a film brushing roller (95); wherein the cylinder seat (81) is fixedly connected on the frame (1) through a bolt, and the tail part of the large-arm cylinder (82) is connected with the cylinder seat (81) through a pin shaft; the big arm ear seat (84) is welded on the frame (1), and the big arm (85) is connected with the big arm ear seat (84) through a pin shaft; the large arm cylinder lug seat (83) is welded on the large arm (85), the end part of a piston rod of the large arm cylinder (82) is connected with the large arm cylinder lug seat (83) through a pin shaft, and the large arm cylinder (82) pushes the large arm (85) to rotate; the small arm positioning plate (86) is connected with the large arm (85) through a bolt, and the small arm (87) is connected with the small arm positioning plate (86) through a screw; the small arm cylinder lug seat I (88) is welded on the small arm (87), and the tail part of the small arm cylinder (89) is connected with the small arm cylinder lug seat I (88) through a pin shaft; the film brushing roller (95) is connected with the roller bracket (92) through a screw, the roller bracket (92) is fixedly connected with the roller bracket connecting plate (91) through welding, and the roller bracket connecting plate (91) is connected with the small arm (87) through a pin shaft; the small arm cylinder lug seat II (90) is welded on the roller bracket connecting plate (91), the end part of a piston rod of the small arm cylinder (89) is connected with the small arm cylinder lug seat II (90) through a pin shaft, and the small arm cylinder (89) pushes the roller bracket connecting plate (91) to rotate so as to push the roller bracket (92) and the film brushing roller (95) to rotate; the heating wire bracket (93) is fixedly connected with the small arm (87) through a screw, and the heating wire (94) is connected with the hole position on the heating wire bracket (93) in a matching way.

6. The method of claim 1, wherein: the roller line (6) is arranged right below the cantilever device (2) and comprises a conveying roller (96), a roller chain wheel I (97), a roller chain wheel II (98), a roller line motor (99), a roller motor chain wheel (100), a roller motor chain (101), a roller chain (102), a roller frame (103) and a cargo positioning photoelectric switch (104); wherein one end of a shaft of the transmission roller (96) is matched with a hole position on the roller rack (103), and the other end of the transmission roller (96) is connected with the roller rack (103) through a screw; the foot seat of the roller wire motor (99) is fixedly connected with the roller frame (103) through a bolt, so that the roller wire motor (99) is fixedly connected to the roller frame (103); the roller chain wheel I (97) and the roller chain wheel II (98) are arranged at one end of the shaft of the conveying roller (96) and rotate synchronously with the conveying roller (96); the roller line motor (99) is connected with the roller motor chain wheel (100) through a key, the roller motor chain wheel (100) is connected with the roller chain wheel I (97) through a roller motor chain (101), the roller line motor (99) can drive the conveying roller (96) to rotate through chain transmission, the roller chain wheel II (98) on the conveying roller (96) connected with the roller line motor (99) through the chain transmission is connected with the roller chain wheel II (98) on the second conveying roller (96) through a roller chain (102), the roller chain wheel I (97) on the second conveying roller (96) is connected with the roller chain wheel I (97) on the third conveying roller (96) through a roller chain (102), and every two conveying rollers (96) are connected through the roller chain (102).