Automatic film tearing and cutting line for perfluorinated film of all-vanadium redox flow battery

Abstract

The invention discloses an automatic film tearing and cutting line for a perfluorinated film of an all-vanadium redox flow battery. The automatic film tearing and cutting line comprises an unwinding machine, a slitting and scrap edge collecting machine, a film hole cutting machine, a tension deviation rectifying machine, a film tearing and winding machine, a static electricity removing transverse cutting machine, a film traction machine and a film discharging mechanical arm which are sequentially arranged in the film conveying direction. The tension deviation rectifying machine can automatically adjust the tension force of the perfluorinated film and rectify the width position of the perfluorinated film; the film uncovering and winding machine can separate the two layers of protective films from the thin film, wind and recycle the protective films and can clamp the thin film when the thin film is cut; the film traction machine comprises a discharging table and a traction manipulator; the static electricity removing transverse cutting machine comprises a film cutting mechanism and two static electricity removing devices. The thin film discharging mechanical arm can grab and discharge the cut thin film located on the thin film discharging station. According to the full-automatic film tearing and cutting device, automatic and accurate film tearing and cutting of the perfluorinated film of the all-vanadium redox flow battery can be achieved, efficient production and quality control are achieved, and the production cost and labor intensity are reduced.

Description

Technical Field

[0001] The invention relates to the field of manufacturing all-vanadium liquid flow batteries, in particular to an automatic film-tearing and cutting line for all-fluorine membranes of all-vanadium liquid flow batteries. Background Art

[0002] The market of all-vanadium liquid flow batteries is growing rapidly, resulting in the need for a large number of high-quality perfluorinated membranes. Traditional manual or semi-automatic production methods can no longer meet the requirements. Therefore, the development of an automatic film tearing and cutting production line for perfluorinated membranes has become an inevitable choice. In order to solve these existing problems, the present invention has developed an automatic film tearing and cutting line for all-vanadium liquid flow batteries that can achieve accurate film tearing and cutting, efficient production and quality control of perfluorinated membranes, improve production efficiency and product quality, and reduce production costs and labor intensity. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an automatic film tearing and cutting line for the perfluoro membrane of an all-vanadium liquid flow battery in view of the deficiencies of the above-mentioned prior art. The automatic film tearing and cutting line for the perfluoro membrane of an all-vanadium liquid flow battery can realize automatic and precise film tearing and cutting, efficient production and quality control of the perfluoro membrane of an all-vanadium liquid flow battery, and reduce production costs and labor intensity.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] An automatic film tearing and cutting line for all-vanadium liquid flow battery perfluorinated membrane, comprising an unwinding machine, a slitting and waste collecting machine, a film hole cutting machine, a tension correcting machine, a film peeling and winding machine, an electrostatic removal cross-cutting machine, a film traction machine and a film unloading manipulator arranged in sequence along the film transmission direction.

[0006] The perfluorinated film comprises a thin film and two layers of protective films; the two layers of protective films are respectively adhered to the top surface and the bottom surface of the thin film.

[0007] The unwinding machine is used for automatic unwinding of perfluoro film.

[0008] The slitting and waste collecting machine can cut the automatically unrolled perfluoro film into a fixed width and recycle the waste edges after cutting.

[0009] The film hole cutting machine can cut the film holes of the perfluoro film according to the set model and layout after being cut to a fixed width.

[0010] The tension corrector can automatically adjust the tension of the perfluoro film to keep it within the set tension range.

[0011] There are two film peeling and winding machines, which are symmetrically arranged up and down, and the height of at least one of the film peeling and winding machines can be raised and lowered; the two film peeling and winding machines can separate the two layers of protective film from the film, rewind and recycle, and can clamp the film when the film is cut.

[0012] The film traction machine comprises a discharging platform and a traction manipulator; the discharging platform is provided with film cutting and traction stations and film discharging stations in sequence along the film transmission direction.

[0013] The traction robot can slide back and forth between the film cutting and traction station and the film discharging station, and can position and traction the film located at the film cutting and traction station.

[0014] The static removal cross-cutting machine comprises a film cutting mechanism and two static removal devices.

[0015] Two static electricity removal devices are arranged upstream of the film cutting mechanism to remove static electricity from the top and bottom surfaces of the film.

[0016] The film cutting mechanism is arranged above the film cutting and traction station, and includes a length cutter and a traction avoidance drive device; the height of the length cutter can be raised and lowered, and can cut the film located directly below; the traction avoidance drive device can drive the length cutter to move toward the static electricity removal device, so as to facilitate the traction robot to position and pull the film at the film cutting and traction station.

[0017] The film unloading robot can grab and unload the cut film at the film unloading station.

[0018] There are two unwinding machines, which are arranged in parallel along the film transmission direction; each unwinding machine includes an unwinding slide, an air shaft and a magnetic powder brake; the air shaft is horizontally rotatably installed on the unwinding slide, and a number of air holes are evenly arranged on the air shaft. High-pressure gas can be passed into the air shaft, and the magnetic powder brake is installed at one end of the air shaft.

[0019] The slitting and scrapping machine comprises a film cutting and traction assembly, a film cutting and tensioning assembly, a cutting assembly and a scrapping machine.

[0020] The film cutting edge traction assembly can pull the unwound perfluoro film forward.

[0021] The film trimming tensioning assembly is arranged between the film trimming traction assembly and the unwinding machine, and includes a slitting knife roller and a slitting knife roller lifting assembly; the slitting knife roller lifting assembly can drive the slitting knife roller to rise and fall, thereby realizing the tension control of the perfluoro film.

[0022] The trimming assembly comprises two ion membrane cutters symmetrically arranged on both sides of the top of the slitting knife roller; the spacing between the two ion membrane cutters is equal to the set width of the perfluoro membrane after cutting; the two ion membrane cutters can both achieve side trimming of the perfluoro membrane under the action of the corresponding membrane cutting drive device.

[0023] There are two edge trimming machines, which are arranged outside the two ion membrane cutters and are used for winding and collecting the waste edges on both sides of the membrane after cutting.

[0024] The film hole cutting machine includes a film hole cutting table and a two-dimensional vibration cutting machine.

[0025] A plurality of air suction holes are evenly arranged on the film hole cutting table, and the positions of the air suction holes are staggered with the positions of the film holes to be cut on the perfluoro film.

[0026] The two-dimensional vibration cutting machine is arranged on the top surface of the film hole cutting table and can move two-dimensionally along the length and width direction of the perfluoro film;

[0027] A film hole blade is arranged at the bottom of the two-dimensional vibration cutting machine, which can perform vibration-type film hole cutting on the perfluoro film located on the film hole cutting table.

[0028] The tension deviation corrector comprises a tension adjustment mechanism and a deviation correcting mechanism which are arranged in parallel in sequence along the film transmission direction.

[0029] The tension adjustment mechanism can detect and adjust the tension of the perfluorinated membrane.

[0030] The tension correction mechanism includes a correction sensor, a correction roller, a sliding frame and a correction drive device.

[0031] The deviation-correcting roller is arranged on the top of the sliding frame and is in close contact with the bottom surface of the perfluoro membrane.

[0032] The sliding frame can realize the sliding of the perfluoro film in the width direction under the drive of the deviation correction driving device.

[0033] The deviation correction sensor can detect the width position of the perfluorinated film.

[0034] The tension corrector also includes a correcting transmission mechanism, which includes a meter wheel and a correcting roller drive device; the meter wheel can calculate the transmission length of the perfluoro film; the correcting roller drive device can drive the correcting roller to rotate, and then pull and transmit the perfluoro film located on the top surface of the correcting roller.

[0035] The tension adjustment mechanism includes a dancing roller and a potentiometer; the dancing roller is pressed against the top surface of the perfluoro film, and the potentiometer can detect the floating height position of the dancing roller; the unwinding machine can adjust the unwinding speed according to the feedback signal of the potentiometer, thereby adjusting the tension of the perfluoro film.

[0036] The traction manipulator is provided with a plurality of film position detection sensors capable of detecting the film position; the bottom of the traction manipulator is provided with a plurality of traction suction cups, and each traction suction cup is connected with a vacuum generator.

[0037] The traction method of the traction manipulator comprises the following steps:

[0038] Step 1, traction avoidance: After the film cutting mechanism completes the length film cutting at the film cutting traction station, the traction avoidance drive device drives the length cutter to move upstream to expose the film cutting traction station.

[0039] Step 2, film position detection: the traction robot slides from the film discharging station to the film cutting traction station; the film position detection sensor located on the traction robot detects the position of the film located directly below.

[0040] Step 3, position adjustment of the traction manipulator: The traction manipulator slides and adjusts along the traction guide rail on the discharge table according to the film position detected in step 2, so that all the traction suction cups of the traction manipulator are aligned with the specified adsorption position of the film.

[0041] Step 4, the traction manipulator is lowered in height: the traction manipulator is driven by the traction lifting drive device to descend to a specified height.

[0042] Step 5: Film adsorption: The traction suction cup and the vacuum generator work simultaneously to form negative pressure to adsorb the film.

[0043] Step 6, traction: The height of the two film peeling and winding machines is reset to release the film; the traction manipulator slides from the film cutting and traction station to the film discharging station.

[0044] Step 7, length cutting: the traction manipulator maintains traction adsorption, the two film peeling and winding machines are lowered in height to clamp the film; the film cutting mechanism is lowered in height to cut the length of the film located at the film cutting and traction station.

[0045] Step 8: Repeat steps 1 to 7 to perform the next traction.

[0046] The film unloading robot comprises a three-dimensional moving frame and an adsorption and removal component.

[0047] The three-dimensional moving frame can drive the adsorption and removal component to realize three-dimensional movement of the film length X direction, the film width Y direction and the height Z direction; the adsorption and removal component includes a suction cup seat, a camera, a probe, a small suction cup and a Bernoulli suction cup.

[0048] The camera detects the film position.

[0049] The small suction cups are evenly distributed around the edges of the bottom of the suction cup seat, and the Bernoulli suction cups are evenly distributed in the middle of the bottom surface of the suction cup seat.

[0050] There are a plurality of probes which are evenly arranged on the base of the suction cup seat. The height of each probe is greater than the height of the small suction cup and the Bernoulli suction cup, and each probe can be freely extended and retracted.

[0051] The present invention has the following beneficial effects:

[0052] 1. The present invention only requires manual pulling of the membrane for the first time. The subsequent steps of loading, trimming, membrane hole cutting, film peeling, destaticization, automatic cutting, pulling and grabbing of the perfluorosulfonic acid membrane of the liquid flow battery are fully automated, and two rolls can be loaded each time, which solves the problem of unstable product assembly quality and improves the operation efficiency of the production line.

[0053] 2. The present invention controls the film width precisely through the slitting and waste collecting machine, and reasonably collects the excess waste edges; the film hole cutting machine solves the problem of cutting various film holes on the film to meet the requirements of different application situations; the tension correcting machine solves the deviation of the film during transmission, and provides real-time feedback through the correcting sensor; the static electricity removal cross-cutting machine solves the demand for different film lengths and eliminates the static electricity generated by the film, especially the static electricity generated when the film is torn; the film traction machine and the film three-axis servo unloading robot solve the problem of film transportation and unloading after production is completed, and at the same time, when there is subsequent assembly, the subsequent production line can realize precise loading, eliminating manual loading and unloading; the entire production line is highly automated and intelligent, and realizes efficient production and quality control, which greatly reduces labor intensity and cost.

[0054] 3. The present invention provides an excellent basis for automatic tearing and cutting of the all-fluorine membrane of the all-vanadium liquid flow battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 The present invention is a schematic structural diagram of an automatic film-tearing and cutting line for a full-fluorine membrane of an all-vanadium liquid flow battery.

[0056] Figure 2 It is a structural schematic diagram of the unwinding machine provided by the present invention.

[0057] Figure 3 The present invention is a schematic structural diagram of a slitting and waste collecting machine.

[0058] Figure 4 The present invention is a schematic structural diagram of a film cutting knife assembly in a slitting and waste collecting machine provided by the present invention.

[0059] Figure 5 It is a structural schematic diagram of the film hole cutting machine provided by the present invention.

[0060] Figure 6 It is a structural schematic diagram of the tension deviation correcting machine provided by the present invention.

[0061] Figure 7 It is a schematic diagram of the tensioning mechanism of the tension deviation correcting machine provided by the present invention.

[0062] Figure 8 It is a schematic diagram of the deviation correction mechanism and transmission mechanism of the tension deviation correction machine provided by the present invention.

[0063] Fig. 9 It is a structural schematic diagram of the film peeling and winding machine provided by the present invention.

[0064] Fig.10 It is a structural schematic diagram of the static electricity removal cross-cutting machine provided by the present invention.

[0065] Fig.11 It is a structural schematic diagram of the film pulling machine provided by the present invention.

[0066] Fig.12 It is a schematic diagram of the structure of a traction manipulator in a film traction machine provided by the present invention.

[0067] Fig.13 It is a structural schematic diagram of the film blanking robot provided by the present invention.

[0068] Fig.14 It is a structural schematic diagram of the adsorption and removal component in the film blanking robot provided by the present invention.

[0069] Fig.15 It is a schematic diagram of the cross-sectional structure of the perfluorinated membrane involved in the present invention.

[0070] Fig.16 It is a three-dimensional simulation structure schematic diagram of an automatic film tearing and cutting line for a full-fluorine membrane of an all-vanadium liquid flow battery according to the present invention.

[0071] in:

[0072] 1. Unwinding machine;

[0073] 11. Pneumatic shaft; 12. Unwinding slide; 13. Magnetic powder brake; 14. Magnetic powder brake bracket; 15. Unwinding machine base;

[0074] 2. Slitting and waste collecting machine;

[0075] 21. Slitting knife roller; 22. Slitting slide block; 23. Lifting rubber-coated roller bracket; 24. Screw rod; 25. Slitting beam; 26. Slitting guide rail;

[0076] 27. Membrane cutter assembly; 271. Ion membrane cutter; 272. Knife holder plate; 273. Cylinder;

[0077] 28. Edge trimming machine; 29. ​​Double turntable to adjust the transmission shaft;

[0078] 3. Film hole cutting machine; 31. Film hole cutting table; 32. Two-dimensional vibration cutting machine; 33. Film hole blade;

[0079] 4. Tension corrector;

[0080] 41. Tension adjustment mechanism; 411. Potentiometer; 412. Tension adjustment rail; 413. Tension adjustment slider; 414. Dancing roller;

[0081] 42. Correction mechanism;

[0082] 421. Deviation correction sensor; 422. Deviation correction roller; 423. Sliding frame; 424. Deviation correction electric cylinder;

[0083] 43. Deviation correction transmission mechanism; 431. Metering wheel; 432. Traction motor;

[0084] 5. Film peeling and winding machine; 51. Film peeling and winding shaft; 52. Film peeling pulley; 53. Film peeling motor;

[0085] 6. Static electricity removal cross-cutting machine;

[0086] 611. Length cutter; 612. Length cutter seat; 613. Horizontal guide rail; 614. Horizontal cylinder; 615. Frame guide rail; 616. Lifting cylinder; 621. Static elimination rod;

[0087] 7. Film traction machine;

[0088] 71. Traction manipulator; 711. Guide rail mounting plate; 712. Traction lifting cylinder; 713. Lifting mounting plate; 714. Buffer; 715. Vacuum generator; 716. Traction suction cup; 717. Film position detection sensor;

[0089] 72. Traction sliding frame; 73. Discharging platform;

[0090] 8. Film unloading robot;

[0091] 81. Three-dimensional mobile rack;

[0092] 82. Adsorption and removal component; 821. Suction cup seat; 822. Camera; 823. Probe; 824. Small suction cup; 825. Bernoulli suction cup;

[0093] 9. Perfluorinated membrane; 91. Thin film; 92. Protective film. DETAILED DESCRIPTION

[0094] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0095] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second" and the like do not indicate the importance of the components, and therefore cannot be understood as limiting the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0096] like Fig.15 As shown, the perfluorinated film 9 comprises a thin film 91 and two layers of protective films 92; the two layers of protective films are respectively adhered to the top surface and the bottom surface of the thin film.

[0097] like Figure 1 and Fig.16 As shown, an automatic film tearing and cutting line for all-vanadium liquid flow battery perfluorinated membrane includes an unwinding machine 1, a slitting and waste collecting machine 2, a film hole cutting machine 3, a tension correcting machine 4, a film peeling and winding machine 5, an electrostatic removal cross-cutting machine 6, a film traction machine 7 and a film unloading robot 8 which are arranged in sequence along the film transmission direction.

[0098] The unwinding machine is used for automatic unwinding of perfluoro film.

[0099] In the present application, there are preferably two unwinding machines, which are arranged parallel to each other along the film transmission direction. Therefore, two rolls of material can be put in each time, which reduces the number of unwindings and saves time. The film is pulled to the next process by a person for the first time.

[0100] like Figure 2 As shown, each unwinding machine includes an air shaft 11, an unwinding slide 12, a magnetic powder brake 13, a magnetic powder brake bracket 14 and an unwinding machine base 15.

[0101] The above-mentioned air shaft is horizontally rotatably mounted on the corresponding unwinding slide, the unwinding slide is mounted on the unwinding machine base, and the L-shaped unwinding slide plate and buckle plate on the unwinding slide can fix the air shaft.

[0102] A number of inflation holes are evenly arranged on the inflation shaft, and high-pressure gas can be introduced into the inflation shaft. When the perfluoro film roll is sleeved on the inflation shaft, the perfluoro film roll is firmly fixed on the inflation shaft by filling the inflation shaft with high-pressure gas.

[0103] The magnetic powder brake is installed at one end of the above-mentioned inflatable shaft, preferably a 10Kg magnetic powder brake, which is used to ensure constant tension. The tension is controlled within the tensile strength of the material to ensure that the material does not deform, and a coupling is used to connect them; the 10Kg magnetic powder brake is preferably fixed on the magnetic powder brake bracket, and the magnetic powder brake bracket is fixed on the unwinding machine base.

[0104] The slitting and waste collecting machine can cut the automatically unrolled perfluoro film into a fixed width and recycle the waste edges after cutting.

[0105] like Figure 3 As shown, the slitting and scrapping machine 2 includes a film cutting and traction assembly, a film cutting and tensioning assembly, a cutting assembly and a scrapping machine 28 .

[0106] The film cutting edge traction assembly can pull the unwinding perfluoro film forward. In the present application, the film cutting edge traction assembly is preferably a double turntable adjustment transmission shaft 29 installed on the unwinding machine base, and the two transmission shafts arranged up and down in the double turntable adjustment transmission shaft rotate in opposite directions, thereby pulling the perfluoro film forward for transmission. The driving device of the double turntable adjustment transmission shaft is preferably a double-chain transmission motor.

[0107] The film trimming tensioning assembly is arranged between the film trimming traction assembly and the unwinding machine, and includes a slitting knife roller 21 and a slitting knife roller lifting assembly; the slitting knife roller lifting assembly can drive the slitting knife roller to rise and fall, thereby realizing the tension control of the perfluoro film.

[0108] The above-mentioned slitting knife roller lifting assembly preferably includes a slitting slider 22, a lifting rubber-coated roller bracket 23 and a screw rod 24.

[0109] The lifting rubber roller bracket is set on both sides of the slitting knife roller. Each lifting rubber roller bracket is provided with a lifting slot in the height direction. A freely rotating screw rod is set in the lifting slot, and a slitting slider is mounted on each screw rod. The two slitting sliders are connected to the two ends of the slitting knife roller. By rotating the screw rod, the height of the slitting slider can be raised and lowered, thereby driving the height of the slitting knife roller to rise and fall.

[0110] The slitting knife roller is arranged along the width direction of the perfluoro film, and its height is higher than the unwinder and the film edge cutting traction assembly. The perfluoro film passes closely through the top surface of the slitting knife roller; when the slitting knife roller rises, the perfluoro film can be tensioned.

[0111] The trimming assembly includes a slitting beam 25, a slitting guide rail 26 and two film cutting knife assemblies.

[0112] The slitting crossbeam is arranged just above the slitting knife roller, and both ends are installed on the lifting rubber-coated roller bracket.

[0113] The slitting guide rails are arranged along the length direction of the slitting beam.

[0114] The two film cutting knife assemblies are symmetrically arranged on both sides of the top of the slitting knife roller, preferably symmetrically arranged on the slitting beam, and can slide along the slitting guide rail in the width direction of the perfluoro film, and can be adaptively adjusted according to the different widths of the perfluoro film, so it has strong versatility.

[0115] like Figure 4 As shown, each membrane cutter assembly includes an ion membrane cutter 271, a membrane cutter support plate 272 and a membrane cutting drive device.

[0116] In this embodiment, the film cutting driving device is preferably a film cutting cylinder 273 .

[0117] The membrane cutter frame plate is hinged on the outer periphery of the cutting beam, and the ion membrane cutter is installed at the bottom of the membrane cutter frame plate.

[0118] The membrane cutting cylinder can make the membrane cutting knife frame plate swing around the cutting beam, change the position of the ion membrane cutter in the height direction, and realize the membrane cutting action.

[0119] The distance between the two ion membrane cutters is equal to the set width of the perfluorinated membrane after cutting; the two ion membrane cutters can both cut the side of the perfluorinated membrane under the action of the corresponding membrane cutting drive device.

[0120] There are two edge trimming machines, which are arranged outside the two ion membrane cutters and are used to wind and collect the waste edges on both sides of the membrane after cutting. The waste membranes cut for the first time on both sides are pulled by people to the edge trimming machines on both sides.

[0121] The film hole cutting machine can cut the film holes of the perfluoro film according to the set model and layout after being cut to a fixed width.

[0122] like Figure 5 As shown, the film hole cutting machine includes a film hole cutting table 31 and a two-dimensional vibration cutting machine 32.

[0123] A plurality of suction holes are evenly arranged on the film hole cutting table, and the positions of the suction holes are staggered with the positions of the film holes to be cut on the perfluoro film. The setting of the suction holes can form negative pressure to adsorb the perfluoro film on the film hole cutting table.

[0124] The two-dimensional vibration cutting machine is arranged on the top surface of the membrane hole cutting table, and can move two-dimensionally along the length direction and width direction of the perfluoro membrane, so that it can cut according to the set membrane hole pattern.

[0125] The bottom of the two-dimensional vibration cutting machine is provided with a high-frequency vibration film hole blade 33, so that the film hole blade can produce a small rapid vibration on the perfluoro film located on the film hole cutting table, thereby realizing the film hole cutting of the perfluoro film, with fast cutting speed and smooth edges, which can greatly improve the processing accuracy and production efficiency. The first time it is pulled to the next process by a person.

[0126] The tension correction machine can automatically adjust the tension of the perfluoro film and correct the width position of the perfluoro film.

[0127] like Figure 6 As shown, the tension corrector 4 includes a tension adjustment mechanism 41, a correcting mechanism 42 and a correcting transmission mechanism 43 which are sequentially arranged in parallel along the film transmission direction.

[0128] The tension adjustment mechanism can detect and adjust the tension of the perfluorinated membrane.

[0129] like Figure 7 As shown, the tension adjustment mechanism includes a potentiometer 411 , a tension adjustment guide rail 412 , a tension adjustment slider 413 and a dancing roller 414 .

[0130] The dancing roller is pressed against the top surface of the perfluoro film, and both ends of the dancing roller are slidably mounted on the tension adjusting guide rail through tension adjusting sliders.

[0131] The potentiometer is arranged above the dancing roller, and is preferably connected to the tension adjustment slider through a sprocket drive to achieve synchronous dancing with the dancing roller, and then detect the floating height position of the dancing roller; the unwinding machine can adjust the unwinding speed according to the feedback signal of the potentiometer, and then adjust the tension of the perfluoro film.

[0132] like Figure 8 As shown, the tension correction mechanism includes a correction sensor 421, a correction roller 422, a sliding frame 423 and a correction drive device.

[0133] The deviation-correcting roller is arranged on the top of the sliding frame and is in close contact with the bottom surface of the perfluoro membrane.

[0134] The sliding frame can realize the sliding of the perfluoro film in the width direction under the driving of the deviation correction driving device. In this embodiment, the deviation correction driving device is preferably a deviation correction electric cylinder 424.

[0135] The deflection correction sensor can detect the width position of the perfluoro film in real time, control the sliding amount of the sliding frame, and thus control the deflection correction amount of the width position of the perfluoro film. The deflection correction sensor detects the position of the perfluoro film in real time during the transmission process. When the perfluoro film deviates from the predetermined reference, the deflection correction electric cylinder will extend or retract, causing the sliding frame to deviate quantitatively, and the deflection correction roller installed on the sliding frame to deviate quantitatively, thereby correcting the perfluoro film.

[0136] The deviation correction transmission mechanism includes a meter wheel 431 and a deviation correction driving device.

[0137] The meter wheel can move synchronously with the perfluoro film, and is used for the system to automatically calculate the transmission length of the perfluoro film, and can be used to control the winding and unwinding action and determine whether the unwinding machine is changing the roll.

[0138] The deflection correction driving device is preferably a deflection correction traction motor 432, which can drive the deflection correction roller to rotate, and then traction and transmission of the perfluoro film located on the top surface of the deflection correction roller.

[0139] There are two film peeling and winding machines, which are symmetrically arranged up and down, and the height of at least one of the film peeling and winding machines can be raised and lowered; the two film peeling and winding machines can separate the two layers of protective film from the film, rewind and recycle, and can clamp the film when the film is cut.

[0140] like Fig. 9 As shown, the film peeling and winding machine includes a film peeling and winding shaft 51, a film peeling pulley 52, a film peeling drive device and a film clamping lifting and lowering drive device.

[0141] The film stripping winding shaft is used to wind the protective film, and the film stripping winding shaft can separate the protective film from the film and wind it up for recycling under the drive of the film stripping pulley 52 and the film stripping driving device. In the present application, the film stripping driving device is preferably a film stripping motor 53.

[0142] The film peeling winding shaft can also be driven by the film clamping lifting drive device to achieve height lifting and lowering, and is used to clamp the film when the film is cut.

[0143] The static removal cross-cutting machine comprises a film cutting mechanism and two static removal devices.

[0144] Two static electricity removal devices are arranged upstream of the film cutting mechanism to remove static electricity from the top and bottom surfaces of the film.

[0145] In the present application, the two static electricity removal devices are two static electricity removal bars 621 arranged along the width direction of the film, which can release charges opposite to those of the film and neutralize the static charge on the film.

[0146] like Fig.10 As shown, the film cutting mechanism is arranged on a frame guide rail 615 above the film cutting and traction station, and includes a length cutting knife 611 and a traction and avoidance driving device.

[0147] The length cutter is preferably driven by the lifting cylinder 616 to achieve height lifting and lowering, and can cut the film directly below. In the present application, the length cutter 611 is installed on the length cutter seat 612, and the length cutter seat 612 can slide along the transverse guide rail 613 in the width direction of the film under the drive of the transverse cylinder 614, thereby achieving cutting in the width direction of the entire film.

[0148] The traction avoidance drive device can drive the length cutter to move toward the static removal device, so as to facilitate the traction manipulator to position and pull the film at the film cutting and pulling station. In this embodiment, the traction avoidance drive device is preferably a lifting cylinder 616, which realizes the lowering and flipping action of the length cutter through a connecting rod frame.

[0149] like Fig.11 As shown, the film traction machine includes a traction robot 71 , a traction sliding frame 72 and a discharge platform 73 .

[0150] The discharging platform is provided with a pulling guide rail along the film transmission direction, and a film cutting and pulling station and a film discharging station are arranged in sequence on the pulling guide rail.

[0151] In this embodiment, the traction sliding frame is slidably installed on the traction guide rail.

[0152] like Fig.12As shown, the traction robot includes a guide rail mounting plate 711, a traction lifting cylinder 712, a lifting mounting plate 713, a buffer 714, a vacuum generator 715, a traction suction cup 716 and a film position detection sensor 717.

[0153] As a preferred traction lifting drive device, the traction lifting cylinder is installed on the top of the traction sliding frame through the guide rail mounting plate. The traction lifting cylinder can drive the height of the lifting mounting plate to rise and fall, and the buffer is used to buffer the lifting into place.

[0154] At least two rows of traction suction cups are arranged at the bottom of the lifting installation plate, and each traction suction cup is connected to a vacuum generator.

[0155] There are several film position detection sensors, which can detect the position of the film at the film cutting and pulling station.

[0156] The traction manipulator can slide back and forth along the traction guide rail between the film cutting and traction station and the film discharging station, and can position and traction the film located at the film cutting and traction station.

[0157] The traction method of the traction manipulator includes the following steps.

[0158] Step 1, traction avoidance: After the film cutting mechanism completes the length film cutting at the film cutting traction station, the traction avoidance drive device drives the length cutter to move upstream to expose the film cutting traction station.

[0159] Step 2, film position detection: the traction robot slides from the film discharging station to the film cutting traction station; the film position detection sensor located on the traction robot detects the position of the film located directly below.

[0160] Step 3, position adjustment of the traction manipulator: The traction manipulator slides and adjusts along the traction guide rail on the discharge table according to the film position detected in step 2, so that all the traction suction cups of the traction manipulator are aligned with the specified adsorption position of the film.

[0161] Step 4, the traction manipulator is lowered in height: the traction manipulator is driven by the traction lifting drive device to descend to a specified height.

[0162] Step 5: Film adsorption: The traction suction cup and the vacuum generator work simultaneously to form negative pressure to adsorb the film.

[0163] Step 6, traction: The height of the two film peeling and winding machines is reset to release the film; the traction manipulator slides from the film cutting and traction station to the film discharging station.

[0164] Step 7, length cutting: the traction manipulator maintains traction adsorption, the two film peeling and winding machines are lowered in height to clamp the film; the film cutting mechanism is lowered in height to cut the length of the film located at the film cutting and traction station.

[0165] Step 8: Repeat steps 1 to 7 to perform the next traction.

[0166] The film unloading robot can grab and unload the cut film at the film unloading station.

[0167] like Fig.13 As shown, the film unloading robot includes a three-dimensional moving frame and an adsorption and removal component 88; the three-dimensional moving frame can drive the adsorption and removal component to achieve three-dimensional movement of the film in the X direction of length, the Y direction of width and the Z direction of height.

[0168] like Fig.14 As shown, the adsorption and removal assembly includes a suction cup seat 821, a camera 822, a probe 823, a small suction cup 824 and a Bernoulli suction cup 825.

[0169] Preferably, there are four cameras, which are respectively arranged around the bottom of the suction cup seat to identify the specific position of the film.

[0170] The small suction cups are evenly distributed around the edges of the bottom of the suction cup seat, and the Bernoulli suction cups are evenly distributed in the middle of the bottom surface of the suction cup seat.

[0171] The probes are provided with a plurality of pieces, preferably eight pieces, which are evenly arranged on the suction cup base. The height of each probe is greater than the height of the small suction cup and the Bernoulli suction cup, and each probe can be freely extended and retracted.

[0172] When the height of the suction cup seat drops, the flat bottom surface of the probe preferably contacts the film below. At this time, the suction cup seat adjusts the descending speed and slowly descends. The probe is compressed, and the small suction cup and the Bernoulli suction cup approach and fit the film, thereby simultaneously adsorbing the film below. Then, the film unloading robot transfers the adsorbed film from the film unloading station to the designated location.

[0173] Therefore, the setting of the probe can collect the distance of the film in the Z-axis direction and control the downward displacement of the suction cup in the Z-axis direction.

[0174] The present invention realizes automatic and precise film tearing and cutting, efficient production and quality control of the all-vanadium liquid flow battery perfluorinated membrane, and reduces production costs and labor intensity.

[0175] The preferred embodiments of the present invention are described in detail above; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. An automatic film tearing and cutting line for all-vanadium liquid flow battery perfluorinated membrane, characterized in that: It includes an unwinder, a slitting and waste collecting machine, a film hole cutting machine, a tension correcting machine, a film peeling and winding machine, a static removal cross-cutting machine, a film traction machine and a film unloading manipulator which are arranged in sequence along the film transmission direction; The perfluorinated film includes a thin film and two protective films; the two protective films are respectively adhered to the top surface and the bottom surface of the thin film; The unwinding machine is used for automatic unwinding of perfluoro film; The slitting and waste edge collecting machine can cut the automatically unrolled perfluoro film into a fixed width and recycle the waste edges after cutting; The film hole cutting machine can set the model and layout of the perfluoro film after being cut to a certain width and cut the film holes; The tension correction machine can automatically adjust the tension of the perfluoro film and correct the width position of the perfluoro film; There are two film peeling and winding machines, which are arranged symmetrically up and down, and the height of at least one of the film peeling and winding machines can be raised and lowered; the two film peeling and winding machines can separate the two layers of protective film from the film, rewind and recycle, and can clamp the film when the film is cut; The film traction machine includes a discharging platform and a traction manipulator; the discharging platform is provided with film cutting and traction stations and film discharging stations in sequence along the film transmission direction; The traction manipulator can slide back and forth between the film cutting and traction station and the film discharging station, and can position and traction the film at the film cutting and traction station; The static removal cross-cutting machine includes a film cutting mechanism and two static removal devices; Two static electricity removal devices are arranged upstream of the film cutting mechanism to remove static electricity from the top and bottom surfaces of the film; The film cutting mechanism is arranged above the film cutting and pulling station, and includes a length cutting knife and a pulling and avoiding driving device; the height of the length cutting knife can be raised and lowered, and the film located directly below can be cut; the pulling and avoiding driving device can drive the length cutting knife to move toward the static electricity removal device, so as to facilitate the pulling manipulator to position and pull the film at the film cutting and pulling station; The film unloading robot can grab and unload the cut film at the film unloading station.

2. The all-vanadium liquid flow battery perfluorinated membrane automatic film tearing and cutting line according to claim 1 is characterized in that: There are two unwinding machines, which are arranged in parallel along the film transmission direction; each unwinding machine includes an unwinding slide, an air shaft and a magnetic powder brake; the air shaft is horizontally rotatably installed on the unwinding slide, and a number of air holes are evenly arranged on the air shaft. High-pressure gas can be passed into the air shaft, and the magnetic powder brake is installed at one end of the air shaft.

3. The all-vanadium liquid flow battery perfluorinated membrane automatic film tearing and cutting line according to claim 1 is characterized in that: The slitting and scrapping machine comprises a film cutting and traction assembly, a film cutting and tensioning assembly, a cutting assembly and a scrapping machine; The film cutting edge traction component can pull the unrolled perfluoro film forward; The film trimming tensioning assembly is arranged between the film trimming traction assembly and the unwinding machine, and comprises a slitting knife roller and a slitting knife roller lifting assembly; The slitting knife roller lifting assembly can drive the slitting knife roller to rise and fall, thereby realizing the tension control of the perfluoro film; The trimming assembly comprises two ion membrane cutters symmetrically arranged on both sides of the top of the slitting knife roller; The distance between the two ion membrane cutters is equal to the set width of the perfluorinated membrane after cutting; Both ion membrane cutters can cut the side of the perfluorinated membrane under the action of the corresponding membrane cutting drive device; There are two edge trimming machines, which are arranged outside the two ion membrane cutters and are used for winding and collecting the waste edges on both sides of the membrane after cutting.

4. The all-vanadium liquid flow battery perfluorinated membrane automatic film tearing and cutting line according to claim 1 is characterized in that: The film hole cutting machine includes a film hole cutting table and a two-dimensional vibration cutting machine; A number of air suction holes are evenly arranged on the film hole cutting table, and the positions of the air suction holes are staggered with the positions of the film holes to be cut on the perfluoro film; The two-dimensional vibration cutting machine is arranged on the top surface of the film hole cutting table, and can move two-dimensionally along the length and width directions of the perfluoro film; a film hole blade is arranged at the bottom of the two-dimensional vibration cutting machine, which can perform vibration-type film hole cutting on the perfluoro film located on the film hole cutting table.

5. The all-vanadium liquid flow battery perfluorinated membrane automatic film tearing and cutting line according to claim 1 is characterized in that: The tension corrector includes a tension adjustment mechanism and a corrector mechanism which are arranged in parallel in the film transmission direction; The tension adjustment mechanism can detect and adjust the tension of the perfluorinated membrane; The tension correction mechanism includes a correction sensor, a correction roller, a sliding frame and a correction drive device; The deviation-correcting roller is arranged on the top of the sliding frame and is in close contact with the bottom surface of the perfluoro film; The sliding frame can realize the sliding of the perfluoro film in the width direction under the drive of the deviation correction drive device; The deviation correction sensor can detect the width position of the perfluorinated film.

6. The all-vanadium liquid flow battery perfluorinated membrane automatic film tearing and cutting line according to claim 5 is characterized in that: The tension corrector also includes a correcting transmission mechanism, which includes a meter wheel and a correcting roller drive device; the meter wheel can calculate the transmission length of the perfluoro film; the correcting roller drive device can drive the correcting roller to rotate, and then pull and transmit the perfluoro film located on the top surface of the correcting roller.

7. The all-vanadium liquid flow battery perfluorinated membrane automatic film tearing and cutting line according to claim 5 is characterized by: The tension adjustment mechanism includes a dancing roller and a potentiometer; the dancing roller is pressed against the top surface of the perfluoro film, and the potentiometer can detect the floating height position of the dancing roller; the unwinding machine can adjust the unwinding speed according to the feedback signal of the potentiometer, thereby adjusting the tension of the perfluoro film.

8. The all-vanadium liquid flow battery perfluorinated membrane automatic film tearing and cutting line according to claim 1 is characterized by: The traction manipulator is provided with a plurality of film position detection sensors capable of detecting the film position; the bottom of the traction manipulator is provided with a plurality of traction suction cups, and each traction suction cup is connected with a vacuum generator.

9. The all-vanadium liquid flow battery perfluorinated membrane automatic film tearing and cutting line according to claim 8, characterized in that: The traction method of the traction manipulator comprises the following steps: Step 1, traction avoidance: After the film cutting mechanism completes the length film cutting at the film cutting and traction station, the traction avoidance drive device drives the length cutting knife to move upstream to expose the film cutting and traction station; Step 2, film position detection: the traction manipulator slides from the film discharging station to the film cutting traction station; the film position detection sensor located on the traction manipulator detects the position of the film located directly below; Step 3, adjusting the position of the traction manipulator: the traction manipulator slides and adjusts along the traction guide rail on the discharge table according to the film position detected in step 2, so that all the traction suction cups of the traction manipulator are aligned with the specified adsorption position of the film; Step 4, the traction manipulator is lowered: the traction manipulator is driven by the traction lifting drive device to descend to a specified height; Step 5, film adsorption: the traction suction cup and the vacuum generator act simultaneously to form negative pressure to adsorb the film; Step 6, traction: The height of the two film peeling and winding machines is reset to release the film; the traction manipulator slides from the film cutting and traction station to the film discharging station; Step 7, length cutting: the traction manipulator maintains traction adsorption, the height of the two film peeling and winding machines is lowered to clamp the film; the height of the film cutting mechanism is lowered to cut the length of the film located at the film cutting and traction station; Step 8: Repeat steps 1 to 7 to perform the next traction.

10. The all-vanadium liquid flow battery perfluorinated membrane automatic film tearing and cutting line according to claim 1, characterized in that: The film unloading robot includes a three-dimensional moving frame and an adsorption and removal component; The three-dimensional moving frame can drive the adsorption and removal component to realize three-dimensional movement of the film length X direction, the film width Y direction and the height Z direction; the adsorption and removal component includes a suction cup seat, a camera, a probe, a small suction cup and a Bernoulli suction cup; The camera can identify the film position; The small suction cups are evenly arranged around the edges of the bottom of the suction cup seat, and the Bernoulli suction cups are evenly arranged in the middle of the bottom surface of the suction cup seat; There are a plurality of probes which are evenly arranged on the base of the suction cup seat. The height of each probe is greater than the height of the small suction cup and the Bernoulli suction cup, and each probe can be freely extended and retracted.

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