CN117183420A - Preparation process of paint surface protective film - Google Patents
Preparation process of paint surface protective film Download PDFInfo
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- CN117183420A CN117183420A CN202311206648.XA CN202311206648A CN117183420A CN 117183420 A CN117183420 A CN 117183420A CN 202311206648 A CN202311206648 A CN 202311206648A CN 117183420 A CN117183420 A CN 117183420A
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- 230000001681 protective effect Effects 0.000 title claims abstract description 215
- 239000003973 paint Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 229920001971 elastomer Polymers 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 15
- 238000010030 laminating Methods 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 10
- 230000000670 limiting effect Effects 0.000 claims description 7
- 238000004381 surface treatment Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000012780 transparent material Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000002829 reductive effect Effects 0.000 abstract description 54
- 230000037303 wrinkles Effects 0.000 abstract description 2
- 230000001965 increasing effect Effects 0.000 description 25
- 238000004804 winding Methods 0.000 description 22
- 208000037656 Respiratory Sounds Diseases 0.000 description 19
- 238000009434 installation Methods 0.000 description 11
- 238000007599 discharging Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 238000003475 lamination Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 4
- 229920006267 polyester film Polymers 0.000 description 3
- 229920006264 polyurethane film Polymers 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of protective film production, in particular to a preparation process of a paint protective film, wherein a base film and other base materials are pressed through pressing equipment in a pressing procedure in the preparation process, and a tensioning device in the pressing equipment comprises a supporting seat, a supporting piece and a tensioning part; according to the invention, acting force is generated on the first guide wheel and the second guide wheel through the protective film, the acting force is further transmitted to the support piece, the support piece is further driven to rotate, the axis of the first guide wheel and the axis of the second guide wheel are perpendicular to the moving direction of the protective film, then the support piece is fixed through the locking part, the axis of the first guide wheel and the axis of the second guide wheel are always perpendicular to the moving direction of the protective film, the probability of overlarge or overlarge local stress of the protective film is further reduced, the probability of generating wrinkles and cracks of the protective film is further reduced, and the quality of the protective film is further improved.
Description
Technical Field
The invention belongs to the technical field of protective film production, and particularly relates to a preparation process of a paint protective film.
Background
The paint protective film is a protective film coated on the surfaces of objects such as automobiles, motorcycles, electronic devices and the like and is used for preventing scratches, stains, ultraviolet radiation and the like from damaging the paint. The preparation process of the paint protective film comprises the following steps: and (3) selecting a base film: suitable base film materials are selected, such as polyester films, polyurethane films, and the like. Surface treatment: the base film is subjected to surface treatment to improve the adhesion and adhesiveness. Coating: and uniformly coating the paint of the paint surface protective film on the surface of the base film. Pressing: and pressing the coated base film with another base film or a proper protective layer. Curing: the coating is cured by heat, ultraviolet light or chemical reaction. The coating and pressing processes in the preparation process are key to influence the quality of the finished product of the protective film, because the uniformity of coating and whether the base films are completely attached to each other during pressing can directly influence the wall thickness, the flatness and the yield of the protective film. The key of the lamination process is that the lamination equipment cannot provide stable and uniform tensioning force when tensioning the base film, so that the base film is ensured to be stable in the moment of lamination, and the laminated protective film is ensured to be smoother.
The tensioning device in the existing lamination equipment has installation errors in the installation process, so that the phenomenon of deviation occurs in the tensioning process of the protective film, the protective film is excessively stressed locally or excessively small due to the deviation of the protective film, the probability of wrinkling of the protective film can be increased due to the excessively small local stress of the protective film, the probability of cracking of the protective film can be increased due to the excessively large stress of the protective film, and accordingly the quality of the protective film is reduced.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a preparation process of a paint protective film. The invention is mainly used for solving the problems that the local stress of the protective film is too large or too small due to the fact that the existing tensioning device is easy to lead, the probability of wrinkling of the protective film can be increased due to the fact that the local stress of the protective film is too small, the probability of cracking of the protective film can be increased due to the fact that the stress of the protective film is too large, and the quality of the protective film is reduced.
The technical scheme adopted for solving the technical problems is as follows: the invention provides a preparation process of a paint protective film, which comprises the following steps:
s1, selecting proper base film materials, such as polyester films, polyurethane films and the like, according to the required protection effect and performance requirements;
s2, carrying out surface treatment on the base film to improve the adhesive force and the adhesiveness, wherein common surface treatment methods comprise cleaning, polishing, static electricity removal and the like;
S3, uniformly coating the paint of the paint protective film on the surface of the base film, wherein common coating methods comprise brushing, coil coating, spraying and the like;
s4, pressing the coated base film with another base film or a proper protective layer to form a composite structure;
s5, curing the paint by using heat, ultraviolet rays or chemical reaction, and enhancing the performance of the paint surface protective film;
the laminating process of S4 specifically comprises the following steps:
y1, cutting and cleaning coiled materials of the base film and other base materials, so as to form clean and dust-free coiled materials for standby;
y2, adjusting parameters such as temperature, pressure, speed and the like of the laminating equipment according to the characteristics of the base film and other base materials;
hoisting each coiled material prepared in the step Y1 on pressing equipment, and tensioning the coiled material through a tensioning device to ensure that the position of the coiled material entering the pressing equipment is accurate;
y4, starting the pressing equipment, and tightly combining the base film with other base materials by heating and pressing;
and Y5, stopping the operation of the pressing equipment after the pressing time is up, and taking out the pressed protective film;
the tensioning device in the laminating equipment comprises a supporting seat, a supporting piece and a tensioning part; the supporting seat is fixed on the ground; the supporting seat is provided with the supporting piece; the support piece is rotationally connected with the support seat through a first slewing bearing; one end of the supporting piece is provided with a first guide wheel; the first guide wheel is rotationally connected with the supporting piece; the other end of the supporting piece is provided with a second guide wheel; the second guide wheel is rotationally connected with the support piece; the tensioning part is arranged between the first guide wheel and the second guide wheel; the tensioning component is connected with the support piece; the tensioning component is used for tensioning the protective film; the supporting seat is provided with a locking part; the locking component is used for realizing the fixation of the supporting piece.
During operation, the protective film tensioning device is arranged between the feeding and discharging holes of the protective film laminating equipment and the protective film winding machine, so that the protective film sequentially bypasses the upper part of the first guide wheel and the lower part of the second guide wheel, the protective film is connected with the idler wheels of the protective film winding machine, the produced protective film is wound by the protective film winding machine, the protective film is tensioned by the tensioning component in the process, tension is provided for the wound protective film, the protective film wound later is tightly attached to the wound protective film, the probability of wrinkling during the winding of the protective film is reduced, and the quality of the protective film is improved; the current overspeed device tensioner has the installation error at the in-process of installation, lead to the phenomenon that the off tracking appears in the in-process of protection film tensioning, the protection film skew can make protection film local atress too big or too little, the protection film local atress is too little can increase the probability that the protection film produced the fold, the protection film atress is too big can increase the probability that the protection film produced the crackle, thereby reduce the quality of protection film, support piece and supporting seat rotate in this overspeed device tensioner and be connected, the protection film is around the machine and is carried out the in-process protection film of coiling to the protection film and produce effort to leading wheel and leading wheel No. two, and then transfer effort to support piece, again because rotate between support piece and the supporting seat and be connected, and then drive the support piece and rotate, and then drive leading wheel No. one and leading wheel and No. two leading wheel rotate, and then make the axis of leading wheel No. one and No. two leading wheel all perpendicular with the direction that the protection film removed, then through locking part is fixed to the support piece, and then make the support piece remain fixed, and make No. one leading wheel and No. two leading wheel's position keep fixed, and the protection film and the probability that the axis and No. two leading wheel and the protection film all move, and the probability that the protection film and the further reduce the probability that the protection film is moved is perpendicular to the local direction that the protection film is passed.
Preferably, the locking component comprises a locking assembly and a quick-fixing assembly; the rapid fixing component is arranged on the supporting seat; the quick fixing component comprises a suction piece and a first sliding piece; the first sliding piece is arranged on the supporting seat; the first sliding piece is in sliding connection with the supporting seat; the upper end of the first sliding part is provided with a limiting part; the lower end of the first sliding part is provided with a baffle; the baffle is fixedly connected with the first sliding piece; the first sliding part is provided with a first elastic part; the first elastic piece is sleeved on the first sliding piece; one end of the first elastic piece is abutted against the supporting seat; the other end of the first elastic piece is abutted against the baffle plate; the suction piece is arranged above the first sliding piece; the suction piece is an electromagnet; the suction piece is fixedly connected with the supporting piece through a first mounting seat; the locking component is arranged on the supporting seat; the locking assemblies are uniformly arranged at intervals along the circumferential direction of the first slewing bearing; the locking component is connected with the supporting piece; the locking assembly is used for fixing the supporting piece.
After the axis of the first guide wheel and the axis of the second guide wheel are perpendicular to the moving direction of the protective film, connecting the suction piece with a power supply, enabling current to pass through the suction piece, enabling the suction piece to generate suction force, enabling the first slide piece to generate suction force (the first slide piece is of a rigid structure made of magnetic suction materials), enabling the first slide piece to slide upwards, enabling the limiting part to be adsorbed with the suction piece, enabling the first slide piece to be fixed with the suction piece, enabling the supporting seat to be temporarily fixed with the supporting piece, then fixing an outer ring of the first slewing bearing (an inner ring of the first slewing bearing is fixedly connected with the supporting seat, an outer ring of the first slewing bearing is fixedly connected with the supporting piece), and then fixing the supporting piece, enabling the positions of the supporting piece to be fixed, enabling the positions of the first guide wheel and the second guide wheel to be fixed, enabling the axis of the first guide wheel and the axis of the second guide wheel to be always perpendicular to the moving direction of the protective film, and further reducing the probability of the first guide wheel and the second guide wheel to generate partial force to the protective film, reducing the probability of the protective film to be greatly reduced, and further reducing the probability of crack and the protective film to be greatly stressed; through setting up the piece that absorbs tightly, and then fix the support piece in advance before fixing the outer lane of slewing bearing with locking component, and then prevent locking component to the effort that slewing bearing outer lane produced the slope, and then prevent slewing bearing outer lane drive support piece rotation, and then prevent that locking component from making the support piece produce rotation when fixing the support piece, and then reduce support piece and lead the back and produce pivoted probability, and then improve the accuracy of support piece position, and then improve the accuracy of leading wheel and No. two leading wheels positions, and then reduce the leading wheel and No. two leading wheels and produce the probability except that the protection film removes the direction of force component to the protection film, and then reduce the probability that the protection film is off tracking, and then reduce the local atress of protection film too big or undersize, and then reduce the probability that the protection film produced fold and crackle, and then improve the quality of protection film.
Preferably, the locking component comprises a first connecting seat, a connecting piece and a fixing piece; the first connecting seat is arranged on the supporting seat; the lower end of the first connecting seat is fixedly connected with the supporting seat; the upper end of the first connecting seat is provided with the connecting piece; one end of the connecting piece is in threaded connection with the first connecting seat; the other end of the connecting piece is provided with the fixing piece; one side of the fixing piece is rotationally connected with the connecting piece; a rubber layer is arranged on the other side of the fixing piece; the rubber layer is fixedly connected with the fixing piece.
After temporarily fixing the supporting piece and the supporting seat through the suction piece, rotating the connecting piece, further enabling the connecting piece to move towards the first slewing bearing, further driving the fixing piece and the rubber layer to move towards the first slewing bearing, further enabling the rubber layer to be extruded on the outer ring of the first slewing bearing, further enabling the outer ring of the first slewing bearing to generate extrusion force, further fixing the outer ring of the first slewing bearing, further fixing the position of the supporting piece, further achieving reliable operation of the first guide wheel and the second guide wheel, and further improving quality of the protective film; through setting up the rubber layer, and then increase the coefficient of friction between rubber layer and the slewing bearing outer lane, and then increase the frictional force that slewing bearing outer lane received, and then increase slewing bearing outer lane pivoted resistance, and then reduce slewing bearing outer lane pivoted probability, and then increase slewing bearing's stability, and then increase support piece's stability, and then improve first leading wheel and second leading wheel's stability, and then reduce first leading wheel and second leading wheel and produce the probability except that the protection film direction of movement for the protection film component, and then reduce the probability of protection film off tracking, and then reduce the local too big or too little probability of atress of protection film, and then reduce the probability that the protection film produced fold and crackle, and then improve the quality of protection film; meanwhile, the rubber layer can deform, and then the rubber layer generates precompression on the first slewing bearing outer ring, so that the rubber layer is always extruded on the first slewing bearing outer ring, the probability of rotation of the first slewing bearing outer ring is reduced, the stability of the first slewing bearing outer ring is improved, the stability of a supporting piece is improved, and the quality of a protective film is improved.
Preferably, the tensioning component comprises a mounting frame, a connecting frame and a tensioning wheel; the lower end of the mounting frame is rotationally connected with the supporting piece through a second slewing bearing; the upper end of the mounting frame is provided with the connecting frame; the connecting frame is rotationally connected with the mounting frame; the tensioning wheels are symmetrically arranged at two ends of the connecting frame; the tensioning wheel is rotationally connected with the connecting frame; the mounting frame is provided with a tensioning assembly; the tensioning assembly is connected with the mounting frame; the tensioning assembly is used for achieving rotation of the connecting frame.
After fixing the position of the support piece through the locking part, the tensioning assembly works, the connecting frame is driven to rotate, one end of the connecting frame, which is close to the first guide wheel, is driven to rotate downwards, the tensioning wheel at the end is driven to move downwards, the tensioning wheel is made to abut against the upper surface of the protective film, one end of the connecting frame, which is close to the second guide wheel, is simultaneously made to rotate upwards, the tensioning wheel at the end is driven to move upwards, the tensioning wheel is made to abut against the lower surface of the protective film, the protective film is tensioned, tension is provided for the wound protective film, the protective film wound at the back is tightly attached to the wound protective film, the probability of wrinkling when the protective film is wound is reduced, and the quality of the protective film is improved; when the axis of take-up pulley is not perpendicular with protection film direction of movement, the protection film produces the effort to two take-up pulleys, and then transmit the effort to the mounting bracket through the take-up pulley, again because the mounting bracket rotates with the support piece to be connected, and then make the mounting bracket rotate, and then adjust two take-up pulley positions, and then make the axis of take-up pulley perpendicular with the protection film direction of movement all the time, reduce the take-up pulley and produce the probability of the outside slope component of direction of movement to the protection film, and then reduce the probability that the take-up pulley makes the protection film off tracking, and then reduce the local atress of protection film too big or undersize, and then reduce the probability that the protection film produced fold and crackle, and then improve the quality of protection film.
Preferably, the tensioning assembly comprises a connecting rod, a connecting ball, a second elastic piece, a second connecting seat and a third connecting seat; the second connecting seat is arranged on the connecting frame; the second connecting seat is fixedly connected with the connecting frame; the third connecting seat is arranged below the second connecting seat; the third connecting seat is connected with the second connecting seat through the second elastic piece; the upper end of the second elastic piece is fixedly connected with the second connecting seat; the lower end of the second elastic piece is fixedly connected with the upper end of the third connecting seat; the lower end of the third connecting seat is provided with a mounting groove; a connecting rod is arranged below the third connecting seat; the lower end of the connecting rod is in threaded connection with the mounting frame; the upper end of the connecting rod is provided with a connecting ball; the connecting ball is fixedly connected with the connecting rod; the connecting ball is arranged in the mounting groove.
After fixing the position of the supporting piece through the locking part, rotating a handle on the connecting rod, further enabling the connecting rod to move downwards, further driving the connecting ball to move downwards, further driving the third connecting seat to move downwards, further increasing the distance between the third connecting seat and the second connecting seat, further increasing the length of the second elastic piece, further increasing the elastic force of the second elastic piece, further driving the second connecting seat to move downwards, further driving the connecting frame to rotate, further driving the two tensioning wheels to rotate, further enabling the two tensioning wheels to respectively abut against the upper surface and the lower surface of the protective film, further tensioning the protective film, further reducing the probability of deviation and inclination of the protective film, and further improving the quality of the protective film; the discharging speed of the protective film laminating equipment cannot be accurately controlled, the winding speed of the protective film by the protective film winding machine is constant, the length of the protective film between the first guide wheel and the second guide wheel is easy to be neglected, the acting force between the protective film and the tensioning wheel can be reduced due to the fact that the length of the protective film is too large, the tensioning degree of the protective film is reduced, the tensile force applied to the protective film is reduced, the probability of wrinkling of the protective film is increased, and the quality of the protective film is reduced; when the protective film is overlong, the tension of the second elastic piece drives the second connecting seat to move downwards, so that the tensioning wheel close to one end of the first guide wheel moves downwards, and meanwhile, the tensioning wheel close to the second guide wheel rotates upwards, so that the track length of the protective film is increased, the protective film is kept in a tensioning state, the probability of wrinkling of the protective film is reduced, and the quality of the protective film is improved; when protection film length is too little, the effort that the protection film received increases, and then increases the deformation of protection film, and then increases the probability that the protection film produced the crackle, and then reduces the quality of protection film, and through setting up elastic component No. one, the protection film is too short, and the protection film drives the take-up pulley and removes, and then reduces the orbit length of protection film, and then reduces the effort between protection film and the take-up pulley, and then reduces the deformation of protection film, and then reduces the probability that the protection film produced the crackle, and then improves the quality of protection film.
Preferably, the connecting rod is provided with a nut; the nut is in threaded connection with the connecting rod.
Through setting up the nut, two take-up pulleys all contradict in the upper and lower both sides of protection film and adjust the back, rotate the nut, and then make the nut upwards move, and then make the nut extrusion be in on this mounting bracket, and then increase the axial force between connecting rod and the mounting bracket, and then increase the frictional force between connecting rod screw thread and the mounting bracket screw thread, and then increase connecting rod pivoted resistance, and then reduce connecting rod pivoted probability, and then reduce the connecting rod and rotate the probability that drives the take-up pulley and remove, and then avoid leading to the too big or too little probability of protection film atress because of the take-up pulley removes, and then reduce the probability that the protection film produced crackle or fold, and then improve the quality of protection film.
Preferably, the lower end of the mounting frame is provided with a detection rod; the detection rod is fixedly connected with the mounting frame; the detection rod is made of a magnetic material; the second mounting parts are symmetrically arranged on the supporting parts; the second mounting piece is fixedly connected with the supporting piece; a first sensor is arranged on the side surface of the second mounting piece, which is close to the first mounting piece; the first sensor is a magnetic induction type sensor; the first sensor is fixedly connected with the second mounting piece; a controller is arranged on the supporting frame; the controller is fixedly connected with the supporting frame; the sensor I is communicated with the controller through an electric signal.
The installation frame drives the detection rod to rotate when rotating, and then make the detection rod rotate between two sensors, when the distance that the detection rod removed is too big, the detection rod is close to the surface of a sensor, and then increase the magnetic force that the detection rod produced to a sensor, and then trigger a sensor, and give the controller with signal transmission with a sensor, and then the controller obtains the installation frame and rotates the too big conclusion that needs to shut down the inspection of range, and then the controller sends out the inspection alarm, and instruct the staff to inspect and then in time find the problem and solve the problem, and then improve overspeed device tensioner's reliability.
Preferably, the supporting seat is provided with a shell; the lower end of the shell is fixedly connected with the supporting seat; the upper end of the shell is provided with a covering piece; the cover piece is hinged with the shell, and an observation port is formed in the cover piece; a shielding sheet is arranged outside the observation port; the shielding piece is fixedly connected with the covering piece; the shielding sheet is made of transparent materials.
Through setting up casing and covering, and then keep apart tensioning assembly and external environment, and then prevent dust in the external environment and adhere to the protection film in the tensioning of protection film's in-process, and then reduce the probability that dust adheres to the protection film, and then reduce the influence of dust to the protection film quality, and then improve the quality of protection film; through setting up the shielding piece that transparent material made on the covering, and then observe tensioning part through shielding piece, and then observe the skew condition that hides the protection film, and then in time discover and handle when the protection film produces the skew, and then shorten the length of low quality protection film, and then improve the quality of protection film.
The beneficial effects of the invention are as follows:
1. according to the invention, the support piece is rotationally connected with the support seat, the protection film generates acting force on the first guide wheel and the second guide wheel in the process of winding the protection film by the protection film winding machine, the acting force is transmitted to the support piece, and the support piece is rotationally connected with the support seat to drive the support piece to rotate, so that the first guide wheel and the second guide wheel are driven to rotate, the axis of the first guide wheel and the axis of the second guide wheel are perpendicular to the moving direction of the protection film, then the support piece is fixed by the locking component, the support piece is kept fixed, the positions of the first guide wheel and the second guide wheel are kept fixed, the axis of the first guide wheel and the axis of the second guide wheel are always perpendicular to the moving direction of the protection film, the component force of the first guide wheel and the second guide wheel on the protection film is reduced, the probability of deviation of the protection film is reduced, the probability of local overstresses or undersized of the protection film is reduced, the probability of the protection film is reduced, and the quality of cracks is improved.
2. According to the invention, after the axis of the first guide wheel and the axis of the second guide wheel are perpendicular to the moving direction of the protective film, the suction piece is connected with the power supply, so that current passes through the suction piece, the suction piece is further made to generate suction force, the first sliding piece is further made to generate suction force (the first sliding piece is of a rigid structure made of a magnetic suction material), the first sliding piece is further made to slide upwards, the limiting part and the suction piece are further adsorbed together, the first sliding piece and the suction piece are further fixed together, the supporting seat and the supporting piece are further temporarily fixed together, then the outer ring of the first slewing bearing (the inner ring of the first slewing bearing is fixedly connected with the supporting seat, the outer ring of the first slewing bearing is fixedly connected with the supporting piece) is further fixed to the supporting piece, the positions of the supporting piece are further kept fixed, the axes of the first guide wheel and the second guide wheel are always perpendicular to the moving direction of the protective film, the probability of the first guide wheel and the second guide wheel on the protective film is further reduced, the probability of preventing the protective film from moving is further reduced, the protective film is further reduced, the probability of the protective film is further reduced, and the occurrence of partial crack is further reduced; through setting up the piece that absorbs tightly, and then fix the support piece in advance before fixing the outer lane of slewing bearing with locking component, and then prevent locking component to the effort that slewing bearing outer lane produced the slope, and then prevent slewing bearing outer lane drive support piece rotation, and then prevent that locking component from making the support piece produce rotation when fixing the support piece, and then reduce support piece and lead the back and produce pivoted probability, and then improve the accuracy of support piece position, and then improve the accuracy of leading wheel and No. two leading wheels positions, and then reduce the leading wheel and No. two leading wheels and produce the probability except that the protection film removes the direction of force component to the protection film, and then reduce the probability that the protection film is off tracking, and then reduce the local atress of protection film too big or undersize, and then reduce the probability that the protection film produced fold and crackle, and then improve the quality of protection film.
3. According to the invention, after the supporting piece and the supporting seat are temporarily fixed through the suction piece, the connecting piece is rotated, so that the connecting piece moves towards the first slewing bearing, the fixing piece and the rubber layer are driven to move towards the first slewing bearing, the rubber layer is extruded on the outer ring of the first slewing bearing, extrusion force is generated on the outer ring of the first slewing bearing, the outer ring of the first slewing bearing is fixed, the position of the supporting piece is fixed, reliable work of the first guide wheel and the second guide wheel is realized, and the quality of the protective film is improved; through setting up the rubber layer, and then increase the coefficient of friction between rubber layer and the slewing bearing outer lane, and then increase the frictional force that slewing bearing outer lane received, and then increase slewing bearing outer lane pivoted resistance, and then reduce slewing bearing outer lane pivoted probability, and then increase slewing bearing's stability, and then increase support piece's stability, and then improve first leading wheel and second leading wheel's stability, and then reduce first leading wheel and second leading wheel and produce the probability except that the protection film direction of movement for the protection film component, and then reduce the probability of protection film off tracking, and then reduce the local too big or too little probability of atress of protection film, and then reduce the probability that the protection film produced fold and crackle, and then improve the quality of protection film; meanwhile, the rubber layer can deform, and then the rubber layer generates precompression on the first slewing bearing outer ring, so that the rubber layer is always extruded on the first slewing bearing outer ring, the probability of rotation of the first slewing bearing outer ring is reduced, the stability of the first slewing bearing outer ring is improved, the stability of a supporting piece is improved, and the quality of a protective film is improved.
4. According to the invention, after the position of the supporting piece is fixed through the locking component, the tensioning component works, so that the connecting frame is driven to rotate, one end of the connecting frame, which is close to the first guide wheel, is driven to rotate downwards, so that the tensioning wheel is abutted against the upper surface of the protective film, and meanwhile, one end of the connecting frame, which is close to the second guide wheel, is driven to rotate upwards, so that the tensioning wheel is abutted against the lower surface of the protective film, so that the protective film is tensioned, so that tension is provided for the wound protective film, so that the protective film wound at the back is tightly attached to the wound protective film, so that the probability of wrinkling during winding of the protective film is reduced, and the quality of the protective film is improved; when the axis of take-up pulley is not perpendicular with protection film direction of movement, the protection film produces the effort to two take-up pulleys, and then transmit the effort to the mounting bracket through the take-up pulley, again because the mounting bracket rotates with the support piece to be connected, and then make the mounting bracket rotate, and then adjust two take-up pulley positions, and then make the axis of take-up pulley perpendicular with the protection film direction of movement all the time, reduce the take-up pulley and produce the probability of the outside slope component of direction of movement to the protection film, and then reduce the probability that the take-up pulley makes the protection film off tracking, and then reduce the local atress of protection film too big or undersize, and then reduce the probability that the protection film produced fold and crackle, and then improve the quality of protection film.
5. According to the invention, after the position of the supporting piece is fixed through the locking component, the handle on the connecting rod is rotated, so that the connecting rod moves downwards, the connecting ball is driven to move downwards, the third connecting seat is driven to move downwards, the distance between the third connecting seat and the second connecting seat is increased, the length of the second elastic piece is increased, the elastic force of the second elastic piece is increased, the second connecting seat is driven to move downwards, the connecting frame is driven to rotate, the two tensioning wheels are respectively abutted against the upper surface and the lower surface of the protective film, the protective film is tensioned, the deviation and inclination probability of the protective film is reduced, and the quality of the protective film is improved; the discharging speed of the protective film laminating equipment cannot be accurately controlled, the winding speed of the protective film by the protective film winding machine is constant, the length of the protective film between the first guide wheel and the second guide wheel is easy to be neglected, the acting force between the protective film and the tensioning wheel can be reduced due to the fact that the length of the protective film is too large, the tensioning degree of the protective film is reduced, the tensile force applied to the protective film is reduced, the probability of wrinkling of the protective film is increased, and the quality of the protective film is reduced; when the protective film is overlong, the tension of the second elastic piece drives the second connecting seat to move downwards, so that the tensioning wheel close to one end of the first guide wheel moves downwards, and meanwhile, the tensioning wheel close to the second guide wheel rotates upwards, so that the track length of the protective film is increased, the protective film is kept in a tensioning state, the probability of wrinkling of the protective film is reduced, and the quality of the protective film is improved; when protection film length is too little, the effort that the protection film received increases, and then increases the deformation of protection film, and then increases the probability that the protection film produced the crackle, and then reduces the quality of protection film, and through setting up elastic component No. one, the protection film is too short, and the protection film drives the take-up pulley and removes, and then reduces the orbit length of protection film, and then reduces the effort between protection film and the take-up pulley, and then reduces the deformation of protection film, and then reduces the probability that the protection film produced the crackle, and then improves the quality of protection film.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall construction of the tensioner of the present invention;
FIG. 2 is a schematic view of the structure of a shielding sheet in the present invention;
FIG. 3 is a schematic illustration of the protective film of the present invention when not tensioned;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a partial enlarged view at B in FIG. 3;
FIG. 6 is a schematic illustration of the present invention with the protective film in tension;
FIG. 7 is an enlarged view of a portion of FIG. 6 at C;
FIG. 8 is a partial enlarged view at D in FIG. 6;
FIG. 9 is a process flow diagram of the preparation process of the present invention;
FIG. 10 is a process flow diagram of a lamination process of the present invention;
in the figure: support base 1, support 2, first slewing bearing 21, first guiding wheel 22, second guiding wheel 23, second slewing bearing 24, tensioning member 3, mounting bracket 31, connecting frame 32, tensioning wheel 33, tensioning assembly 34, connecting rod 341, connecting ball 342, second elastic member 343, second connecting base 344, third connecting base 345, nut 346, locking member 4, locking assembly 41, first connecting base 411, connecting member 412, fixing member 413, rubber layer 414, quick fixing assembly 42, absorbing member 421, first slider 422, limiting portion 4221, blocking piece 423, first elastic member 424, first mounting base 425, detecting rod 51, second mounting member 52, first sensor 53, housing 6, cover 7, shielding piece 8.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1, 2, 3, 5, 6, 8, 9 and 10, a paint protective film preparation process comprises the following steps:
s1, selecting proper base film materials, such as polyester films, polyurethane films and the like, according to the required protection effect and performance requirements;
s2, carrying out surface treatment on the base film to improve the adhesive force and the adhesiveness, wherein common surface treatment methods comprise cleaning, polishing, static electricity removal and the like;
s3, uniformly coating the paint of the paint protective film on the surface of the base film, wherein common coating methods comprise brushing, coil coating, spraying and the like;
s4, pressing the coated base film with another base film or a proper protective layer to form a composite structure;
s5, curing the paint by using heat, ultraviolet rays or chemical reaction, and enhancing the performance of the paint surface protective film;
the laminating process of S4 specifically comprises the following steps:
y1, cutting and cleaning coiled materials of the base film and other base materials, so as to form clean and dust-free coiled materials for standby;
Y2, adjusting parameters such as temperature, pressure, speed and the like of the laminating equipment according to the characteristics of the base film and other base materials;
hoisting each coiled material prepared in the step Y1 on pressing equipment, and tensioning the coiled material through a tensioning device to ensure that the position of the coiled material entering the pressing equipment is accurate;
y4, starting the pressing equipment, and tightly combining the base film with other base materials by heating and pressing;
and Y5, stopping the operation of the pressing equipment after the pressing time is up, and taking out the pressed protective film;
the tensioning device in the laminating equipment comprises a supporting seat 1, a supporting piece 2 and a tensioning part 3; the supporting seat 1 is fixed on the ground; the support piece 2 is arranged on the support seat 1; the support piece 2 is rotatably connected with the support seat 1 through a first slewing bearing 21; one end of the supporting piece 2 is provided with a first guide wheel 22; the first guide wheel 22 is rotatably connected with the support 2; the other end of the supporting piece 2 is provided with a second guide wheel 23; the second guide wheel 23 is rotatably connected with the support 2; the tensioning part 3 is arranged between the first guide wheel 22 and the second guide wheel 23; the tensioning part 3 is connected with the support 2; the tensioning component 3 is used for tensioning the protective film; the supporting seat 1 is provided with a locking part 4; the locking means 4 are used to achieve the fixation of the support 2.
During operation, the protective film tensioning device is arranged between the feeding and discharging holes of the protective film laminating equipment and the protective film winding machine, so that the protective film sequentially winds from the upper part of the first guide wheel 22 and the lower part of the second guide wheel 23, the protective film is connected with the idler wheels of the protective film winding machine, the produced protective film is wound by the protective film winding machine, the tensioning part 3 tensions the protective film during the process, and further, tension is provided for the wound protective film, and then the protective film wound at the back is tightly attached to the wound protective film, so that the probability of wrinkling during the winding of the protective film is reduced, and the quality of the protective film is improved; the current overspeed device tensioner has the installation error at the in-process of installation, lead to the phenomenon that the off tracking appears in the in-process of protection film tensioning, the protection film skew can make protection film local atress too big or too little, protection film local atress is too little can increase the probability that the protection film produced the fold, the protection film atress is too big can increase the probability that the protection film produced the crackle, thereby reduce the quality of protection film, support piece 2 and supporting seat 1 rotate in this overspeed device tensioner, the protection film is connected with the support seat 1, the protection film is rolled up the in-process protection film to the protection film and is produced effort to leading wheel 22 and leading wheel 23 No. two, and then transmit effort to support piece 2, again because rotate between support piece 2 and the supporting seat 1 and be connected, and then drive support piece 2 rotates, and then drive leading wheel 22 and leading wheel 23 rotate, and then make the axis of leading wheel 22 No. two and No. two leading wheel 23 all perpendicular with the direction that the protection film removed, then, fix support piece 2 through locking part 4, and then make support piece 2 keep fixing, and No. one leading wheel 22 and No. two leading wheel 23 and the position of protection film keep fixed, and No. one, and No. two leading wheel 23 and the probability that the direction of movement is further reduce the probability that the protection film is moved and leading wheel 23, and the direction of the protection film is further reduced, and No. 2 is further to be moved, and the direction is further to be perpendicular to the direction that the protection film is moved, and the direction of the protection film is further reduced.
As shown in fig. 1, 3, 5, 6 and 8, the locking member 4 includes a locking assembly 41 and a quick-fixing assembly 42; the rapid fixing component 42 is arranged on the supporting seat 1; the quick-fix assembly 42 includes a suction member 421 and a first slider 422; the first sliding piece 422 is arranged on the supporting seat 1; the first sliding member 422 is slidably connected to the supporting seat 1; the upper end of the first sliding member 422 is provided with a limiting part 4221; a blocking piece 423 is arranged at the lower end of the first sliding piece 422; the blocking piece 423 is fixedly connected with the first sliding piece 422; the first sliding member 422 is provided with a first elastic member 424; the first elastic member 424 is sleeved on the first sliding member 422; one end of the first elastic member 424 abuts against the supporting seat 1; the other end of the first elastic member 424 abuts against the blocking piece 423; the suction piece 421 is arranged above the first sliding piece 422; the suction piece 421 is an electromagnet; the suction piece 421 is fixedly connected with the support piece 2 through a first mounting seat 425; the locking component 41 is arranged on the supporting seat 1; the locking components 41 are uniformly arranged at intervals along the circumferential direction of the first slewing bearing 21; the locking assembly 41 is connected with the support 2; the locking assembly 41 is used to effect the fixing of the support 2.
After the axis of the first guide wheel 22 and the axis of the second guide wheel 23 are perpendicular to the moving direction of the protective film, the suction piece 421 is connected with a power supply, so that current passes through the suction piece 421, so that suction is generated by the first sliding piece 422 (the first sliding piece 422 is a rigid structure made of a magnetic suction material), so that the first sliding piece 422 slides upwards, so that the limiting part 4221 is adsorbed with the suction piece 421, so that the first sliding piece 422 is fixed with the suction piece 421, so that the supporting seat 1 and the supporting piece 2 are temporarily fixed together, then the outer ring of the first slewing bearing 21 (the inner ring of the first slewing bearing 21 is fixedly connected with the supporting seat 1 through a locking piece, the outer ring of the first slewing bearing 21 is fixedly connected with the supporting piece 2), so that the supporting piece 2 is fixed, the position of the supporting piece 2 is kept fixed, the positions of the first guide wheel 22 and the second guide wheel 23 are kept fixed, the axis of the first guide wheel 22 and the axis of the second guide wheel 23 are always perpendicular to the moving direction of the protective film, the probability that the first guide wheel 22 and the second guide wheel 23 generate component force except the moving direction of the protective film is reduced, the probability that the protective film is deviated is reduced, the probability that the local stress of the protective film is overlarge or overlarge is reduced, the probability that the protective film generates folds and cracks is reduced, and the quality of the protective film is improved; through setting up the suction piece 421, and then fix support piece 2 in advance before fixing the outer lane of slewing bearing 21 with locking subassembly 41, and then prevent locking subassembly 41 and produce the effort that inclines to slewing bearing 21 outer lane, and then prevent slewing bearing 21 outer lane drive support piece 2 rotation, and then prevent that locking subassembly 41 from making support piece 2 produce rotation when fixing support piece 2, and then reduce support piece 2 and lead to produce pivoted probability after the correction, and then improve the accuracy in support piece 2 position, and then improve the accuracy in first leading wheel 22 and No. two leading wheels 23 positions, and then reduce the probability that leading wheel 22 and No. two leading wheels 23 produce other components except the protection film direction of movement to the protection film, and then reduce the probability that the protection film off tracking, and then reduce the probability that the local atress of protection film is too big or undersize, and then reduce the probability that the protection film produces fold and crackle, and then improve the quality of protection film.
As shown in fig. 3, 5, 6 and 8, the locking assembly 41 includes a first connecting seat 411, a connecting member 412 and a fixing member 413; the first connecting seat 411 is arranged on the supporting seat 1; the lower end of the first connecting seat 411 is fixedly connected with the supporting seat 1; the upper end of the first connecting seat 411 is provided with a connecting piece 412; one end of the connecting piece 412 is in threaded connection with the first connecting seat 411; the other end of the connecting piece 412 is provided with the fixing piece 413; one side of the fixing member 413 is rotatably connected to the connecting member 412; a rubber layer 414 is arranged on the other side of the fixed piece 413; the rubber layer 414 is fixedly connected with the fixing piece 413.
After the supporting piece 2 and the supporting seat 1 are temporarily fixed through the suction piece 421, the connecting piece 412 is rotated, so that the connecting piece 412 moves towards the first slewing bearing 21, the fixing piece 413 and the rubber layer 414 are driven to move towards the first slewing bearing 21, the rubber layer 414 is extruded on the outer ring of the first slewing bearing 21, extrusion force is generated on the outer ring of the first slewing bearing 21, the outer ring of the first slewing bearing 21 is fixed, the position of the supporting piece 2 is fixed, reliable operation of the first guide wheel 22 and the second guide wheel 23 is realized, and the quality of a protective film is improved; by arranging the rubber layer 414, the friction coefficient between the rubber layer 414 and the outer ring of the first slewing bearing 21 is increased, the friction force born by the ring of the first slewing bearing 21 is increased, the rotating resistance of the outer ring of the first slewing bearing 21 is increased, the rotating probability of the outer ring of the first slewing bearing 21 is reduced, the stability of the first slewing bearing 21 is increased, the stability of the supporting piece 2 is increased, the stability of the first guide wheel 22 and the second guide wheel 23 is improved, the probability that component force except the moving direction of the protective film is generated by the first guide wheel 22 and the second guide wheel 23 is reduced, the probability of deflection of the protective film is reduced, the probability that the local stress of the protective film is overlarge or overlarge is reduced, the probability that the protective film generates wrinkles and cracks is reduced, and the quality of the protective film is improved; meanwhile, the rubber layer 414 can deform, so that the rubber layer 414 generates pre-pressure on the outer ring of the first slewing bearing 21, the rubber layer 414 is always extruded on the outer ring of the first slewing bearing 21, the probability of rotation of the outer ring of the first slewing bearing 21 is reduced, the stability of the outer ring of the first slewing bearing 21 is improved, the stability of the supporting piece 2 is improved, and the quality of a protective film is improved.
As shown in fig. 1, 3, 4, 6 and 7, the tension member 3 includes a mounting frame 31, a connection frame 32 and a tension pulley 33; the lower end of the mounting frame 31 is rotatably connected with the support 2 through a second slewing bearing 24; the upper end of the mounting frame 31 is provided with the connecting frame 32; the connecting frame 32 is rotatably connected with the mounting frame 31; the tensioning wheels 33 are symmetrically arranged at two ends of the connecting frame 32; the tensioning wheel 33 is rotatably connected with the connecting frame 32; the mounting frame 31 is provided with a tensioning assembly 34; the tensioning assembly 34 is connected with the mounting frame 31; the tensioning assembly 34 is used to effect rotation of the link 32.
After fixing the position of the support piece 2 through the locking part 4, the tensioning assembly 34 works, so that the connecting frame 32 is driven to rotate, one end of the connecting frame 32, which is close to the first guide wheel 22, is driven to rotate downwards, so that the tensioning wheel 33 at the end is driven to move downwards, so that the tensioning wheel 33 is abutted against the upper surface of the protective film, and meanwhile, one end of the connecting frame 32, which is close to the second guide wheel 23, is driven to rotate upwards, so that the tensioning wheel 33 at the end is driven to move upwards, so that the tensioning wheel 33 is abutted against the lower surface of the protective film, so that the protective film is tensioned, so that tension is provided for the wound protective film, so that the protective film wound later is tightly attached to the wound protective film, so that the probability of wrinkling during winding of the protective film is reduced, and the quality of the protective film is improved; when the axis of take-up pulley 33 is not perpendicular with the protection film direction of movement, the protection film produces effort to two take-up pulleys 33, and then transmit effort to mounting bracket 31 through take-up pulley 33, again because mounting bracket 31 rotates with support piece 2 and is connected, and then make mounting bracket 31 rotate, and then adjust two take-up pulley 33 positions, and then make the axis of take-up pulley 33 perpendicular with the protection film direction of movement all the time, reduce the rate that take-up pulley 33 produced the tilt component outside the direction of movement to the protection film, and then reduce the rate that take-up pulley 33 made the protection film off tracking, and then reduce the local atress of protection film too big or too little probability, and then reduce the protection film and produce fold and crackle's probability, and then improve the quality of protection film.
As shown in fig. 3, 4, 6 and 7, the tension assembly 34 includes a connection rod 341, a connection ball 342, a second elastic member 343, a second connection seat 344 and a third connection seat 345; the second connecting seat 344 is disposed on the connecting frame 32; the second connecting seat 344 is fixedly connected with the connecting frame 32; the third connecting seat 345 is arranged below the second connecting seat 344; the third connecting seat 345 is connected with the second connecting seat 344 through the second elastic member 343; the upper end of the second elastic member 343 is fixedly connected with the second connecting seat 344; the lower end of the second elastic member 343 is fixedly connected with the upper end of the third connecting seat 345; the lower end of the third connecting seat 345 is provided with a mounting groove; a connecting rod 341 is arranged below the third connecting seat 345; the lower end of the connecting rod 341 is in threaded connection with the mounting frame 31; the upper end of the connecting rod 341 is provided with a connecting ball 342; the connecting ball 342 is fixedly connected with the connecting rod 341; the connection balls 342 are disposed in the mounting grooves.
After fixing the position of the supporting piece 2 through the locking part 4, rotating a handle on the connecting rod 341, further enabling the connecting rod 341 to move downwards, further driving the connecting ball 342 to move downwards, further driving the third connecting seat 345 to move downwards, further increasing the distance between the third connecting seat 345 and the second connecting seat 344, further increasing the length of the second elastic piece 343, further increasing the elastic force of the second elastic piece 343, further driving the second connecting seat 344 to move downwards, further driving the connecting frame 32 to rotate, further driving the two tensioning wheels 33 to rotate, further enabling the two tensioning wheels 33 to respectively abut against the upper surface and the lower surface of the protective film, further tensioning the protective film, further reducing the probability of deviation and inclination of the protective film, and further improving the quality of the protective film; the discharging speed of the protective film laminating equipment cannot be accurately controlled, the winding speed of the protective film by the protective film winding machine is constant, the length of the protective film between the first guide wheel 22 and the second guide wheel 23 is easy to be negligibly small, the acting force between the protective film and the tensioning wheel 33 can be reduced due to the overlarge length of the protective film, the tensioning degree of the protective film is reduced, the tensile force applied to the protective film is reduced, the probability of wrinkling of the protective film is increased, and the quality of the protective film is reduced; when the protective film is too long, the tension of the second elastic piece 343 drives the second connecting seat 344 to move downwards, so that the tensioning wheel 33 close to one end of the first guide wheel 22 moves downwards, and simultaneously the tensioning wheel 33 close to the second guide wheel 23 rotates upwards, so that the track length of the protective film is increased, the protective film is kept in a tensioned state, the probability of wrinkling of the protective film is reduced, and the quality of the protective film is improved; when protection film length is too little, the effort that the protection film received increases, and then increases the deformation of protection film, and then increases the probability that the protection film produced the crackle, and then reduces the quality of protection film, through setting up elastic component 424, the protection film is too short, and the protection film drives take-up pulley 33 and removes, and then reduces the orbit length of protection film, and then reduces the effort between protection film and the take-up pulley 33, and then reduces the deformation of protection film, and then reduces the probability that the protection film produced the crackle, and then improves the quality of protection film.
As shown in fig. 3, 4, 6 and 7, the connecting rod 341 is provided with a nut 346; the nut 346 is screw-coupled with the connection rod 341.
Through setting up nut 346, two take-up pulleys 33 all contradict in the upper and lower both sides of protection film and adjust the back, rotate nut 346, and then make nut 346 upwards move, and then make nut 346 extrude on this is in mounting bracket 31, and then increase the axial force between connecting rod 341 and the mounting bracket 31, and then increase the frictional force between connecting rod 341 screw thread and the mounting bracket 31 screw thread, and then increase connecting rod 341 pivoted resistance, and then reduce connecting rod 341 pivoted probability, and then reduce connecting rod 341 and rotate the probability that drives take-up pulley 33 and remove, and then avoid leading to the too big or too little probability of protection film atress because of take-up pulley 33 removes, and then reduce the probability that the protection film produced crackle or fold, and then improve the quality of protection film.
As shown in fig. 3 and 5, the lower end of the mounting frame 31 is provided with a detecting rod 51; the detecting rod 51 is fixedly connected with the mounting frame 31; the detecting rod 51 is made of magnetic material; the second mounting piece 52 is symmetrically arranged on the supporting piece 2; the second mounting piece 52 is fixedly connected with the supporting piece 2; a first sensor 53 is arranged on the side surface of the second mounting piece 52, which is close to each other; the sensor 53 is a magnetic induction type sensor; the first sensor 53 is fixedly connected with the second mounting piece 52; a controller is arranged on the supporting frame; the controller is fixedly connected with the supporting frame; the sensor 53 is communicated with the controller through an electric signal.
The installation frame 31 drives the detection rod 51 to rotate during rotation, and then the detection rod 51 rotates between the two first sensors 53, when the distance that the detection rod 51 moved is too big, the detection rod 51 is close to the surface of the first sensors 53, and then the magnetic force that the detection rod 51 produced to the first sensors 53 is increased, and then the first sensors 53 are triggered, and the first sensors 53 transmit signals to the controller, and then the controller obtains the conclusion that the installation frame 31 is too big in rotation amplitude and needs to stop for inspection, and then the controller sends out inspection alarm, and instructs staff to inspect and then find problems in time and solve the problems, and then the reliability of the tensioning device is improved.
As shown in fig. 2 and 6, the supporting seat 1 is provided with a shell 6; the lower end of the shell 6 is fixedly connected with the supporting seat 1; the upper end of the shell 6 is provided with a covering piece 7; the cover piece 7 is hinged with the shell 6, and an observation port is formed in the cover piece 7; a shielding sheet 8 is arranged outside the observation port; the shielding sheet 8 is fixedly connected with the covering piece 7; the shielding sheet 8 is made of transparent material.
By arranging the shell 6 and the covering piece 7, the tensioning assembly 34 is further isolated from the external environment, dust in the external environment is further prevented from being adhered to the protective film in the tensioning process of the protective film, the probability of adhering the dust to the protective film is further reduced, the influence of the dust on the quality of the protective film is further reduced, and the quality of the protective film is further improved; through setting up the shielding piece 8 that transparent material made on covering 7, and then observe tensioning part 3 through shielding piece 8, and then observe the skew condition of shielding the protection film, and then in time discover and handle when the protection film produces the skew, and then shorten the length of low quality protection film, and then improve the quality of protection film.
During operation, the protective film tensioning device is arranged between the feeding and discharging holes of the protective film laminating equipment and the protective film winding machine, so that the protective film sequentially winds from the upper part of the first guide wheel 22 and the lower part of the second guide wheel 23, the protective film is connected with the idler wheels of the protective film winding machine, the produced protective film is wound by the protective film winding machine, the tensioning part 3 tensions the protective film during the process, and further, tension is provided for the wound protective film, and then the protective film wound at the back is tightly attached to the wound protective film, so that the probability of wrinkling during the winding of the protective film is reduced, and the quality of the protective film is improved; the current overspeed device tensioner has the installation error at the in-process of installation, lead to the phenomenon that the off tracking appears in the in-process of protection film tensioning, the protection film skew can make protection film local atress too big or too little, protection film local atress is too little can increase the probability that the protection film produced the fold, the protection film atress is too big can increase the probability that the protection film produced the crackle, thereby reduce the quality of protection film, support piece 2 and supporting seat 1 rotate in this overspeed device tensioner, the protection film is connected with the support seat 1, the protection film is rolled up the in-process protection film to the protection film and is produced effort to leading wheel 22 and leading wheel 23 No. two, and then transmit effort to support piece 2, again because rotate between support piece 2 and the supporting seat 1 and be connected, and then drive support piece 2 rotates, and then drive leading wheel 22 and leading wheel 23 rotate, and then make the axis of leading wheel 22 No. two and No. two leading wheel 23 all perpendicular with the direction that the protection film removed, then, fix support piece 2 through locking part 4, and then make support piece 2 keep fixing, and No. one leading wheel 22 and No. two leading wheel 23 and the position of protection film keep fixed, and No. one, and No. two leading wheel 23 and the probability that the direction of movement is further reduce the probability that the protection film is moved and leading wheel 23, and the direction of the protection film is further reduced, and No. 2 is further to be moved, and the direction is further to be perpendicular to the direction that the protection film is moved, and the direction of the protection film is further reduced.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (8)
1. A preparation process of a paint protective film is characterized by comprising the following steps of: the preparation process comprises the following steps:
s1, selecting a proper base film material according to the required protection effect and performance requirements;
s2, carrying out surface treatment on the base film to improve the adhesive force and the adhesiveness;
s3, uniformly coating the paint of the paint surface protective film on the surface of the base film;
s4, pressing the coated base film with another base film or a proper protective layer to form a composite structure;
s5, curing the paint by using heat, ultraviolet rays or chemical reaction, and enhancing the performance of the paint surface protective film;
the laminating process of S4 specifically comprises the following steps:
y1, cutting and cleaning coiled materials of the base film and other base materials, so as to form clean and dust-free coiled materials for standby;
Y2, adjusting parameters such as temperature, pressure, speed and the like of the laminating equipment according to the characteristics of the base film and other base materials;
hoisting each coiled material prepared in the step Y1 on pressing equipment, and tensioning the coiled material through a tensioning device to ensure that the position of the coiled material entering the pressing equipment is accurate;
y4, starting the pressing equipment, and tightly combining the base film with other base materials by heating and pressing;
and Y5, stopping the operation of the pressing equipment after the pressing time is up, and taking out the pressed protective film;
the tensioning device in the pressing equipment comprises a supporting seat (1), a supporting piece (2) and a tensioning part (3); the supporting seat (1) is fixed on the ground; the supporting seat (1) is provided with the supporting piece (2); the support piece (2) is rotationally connected with the support seat (1) through a first slewing bearing (21); one end of the supporting piece (2) is provided with a first guide wheel (22); the first guide wheel (22) is rotationally connected with the support piece (2); the other end of the supporting piece (2) is provided with a second guide wheel (23); the second guide wheel (23) is rotationally connected with the support piece (2); the tensioning part (3) is arranged between the first guide wheel (22) and the second guide wheel (23); the tensioning part (3) is connected with the support (2); the tensioning component (3) is used for tensioning the protective film; a locking part (4) is arranged on the supporting seat (1); the locking part (4) is used for fixing the support (2).
2. The process for preparing a paint protective film according to claim 1, wherein: the locking component (4) comprises a locking assembly (41) and a quick fixing assembly (42); the rapid fixing component (42) is arranged on the supporting seat (1); the quick fixing assembly (42) comprises a suction piece (421) and a first sliding piece (422); the first sliding piece (422) is arranged on the supporting seat (1); the first sliding piece (422) is in sliding connection with the supporting seat (1); the upper end of the first sliding piece (422) is provided with a limiting part (4221); a baffle piece (423) is arranged at the lower end of the first sliding piece (422); the baffle piece (423) is fixedly connected with the first sliding piece (422); the first sliding piece (422) is provided with a first elastic piece (424); the first elastic piece (424) is sleeved on the first sliding piece (422); one end of the first elastic piece (424) is abutted against the supporting seat (1); the other end of the first elastic piece (424) is abutted against the baffle piece (423); the suction piece (421) is arranged above the first sliding piece (422); the suction piece (421) is an electromagnet; the suction piece (421) is fixedly connected with the support piece (2) through a first mounting seat (425); the locking component (41) is arranged on the supporting seat (1); the locking assemblies (41) are uniformly arranged at intervals along the circumferential direction of the first slewing bearing (21); the locking assembly (41) is connected with the support (2); the locking assembly (41) is used for fixing the support (2).
3. The process for preparing a paint protective film according to claim 2, wherein: the locking assembly (41) comprises a first connecting seat (411), a connecting piece (412) and a fixing piece (413); the first connecting seat (411) is arranged on the supporting seat (1); the lower end of the first connecting seat (411) is fixedly connected with the supporting seat (1); the upper end of the first connecting seat (411) is provided with the connecting piece (412); one end of the connecting piece (412) is in threaded connection with the first connecting seat (411); the other end of the connecting piece (412) is provided with the fixing piece (413); one side of the fixing piece (413) is rotationally connected with the connecting piece (412); a rubber layer (414) is arranged on the other side of the fixing piece (413); the rubber layer (414) is fixedly connected with the fixing piece (413).
4. A process for preparing a paint protective film according to claim 3, wherein: the tensioning part (3) comprises a mounting frame (31), a connecting frame (32) and a tensioning wheel (33); the lower end of the mounting frame (31) is rotationally connected with the supporting piece (2) through a second slewing bearing (24); the upper end of the mounting frame (31) is provided with the connecting frame (32); the connecting frame (32) is rotationally connected with the mounting frame (31); the tensioning wheels (33) are symmetrically arranged at the two ends of the connecting frame (32); the tensioning wheel (33) is rotationally connected with the connecting frame (32); the mounting frame (31) is provided with a tensioning assembly (34); the tensioning assembly (34) is connected with the mounting frame (31); the tensioning assembly (34) is used for realizing rotation of the connecting frame (32).
5. The process for preparing a paint protective film according to claim 4, wherein: the tensioning assembly (34) comprises a connecting rod (341), a connecting ball (342), a second elastic piece (343), a second connecting seat (344) and a third connecting seat (345); the second connecting seat (344) is arranged on the connecting frame (32); the second connecting seat (344) is fixedly connected with the connecting frame (32); the third connecting seat (345) is arranged below the second connecting seat (344); the third connecting seat (345) is connected with the second connecting seat (344) through the second elastic piece (343); the upper end of the second elastic piece (343) is fixedly connected with the second connecting seat (344); the lower end of the second elastic piece (343) is fixedly connected with the upper end of the third connecting seat (345); the lower end of the third connecting seat (345) is provided with a mounting groove; a connecting rod (341) is arranged below the third connecting seat (345); the lower end of the connecting rod (341) is in threaded connection with the mounting frame (31); the upper end of the connecting rod (341) is provided with a connecting ball (342); the connecting ball (342) is fixedly connected with the connecting rod (341); the connection ball (342) is disposed in the mounting groove.
6. The process for preparing a paint protective film according to claim 5, wherein: a nut (346) is arranged on the connecting rod (341); the nut (346) is in threaded connection with the connecting rod (341).
7. The process for preparing a paint protective film according to claim 6, wherein: the lower end of the mounting frame (31) is provided with a detection rod (51); the detection rod (51) is fixedly connected with the mounting frame (31); the detecting rod (51) is made of magnetic materials; the second mounting pieces (52) are symmetrically arranged on the supporting piece (2); the second mounting piece (52) is fixedly connected with the supporting piece (2); a first sensor (53) is arranged on the side surface of the second mounting piece (52) which is close to each other; the first sensor (53) is a magnetic induction sensor; the first sensor (53) is fixedly connected with the second mounting piece (52); a controller is arranged on the supporting frame; the controller is fixedly connected with the supporting frame; the sensor No. one (53) is communicated with the controller through an electric signal.
8. The process for preparing a paint protective film according to claim 7, wherein: a shell (6) is arranged on the supporting seat (1); the lower end of the shell (6) is fixedly connected with the supporting seat (1); the upper end of the shell (6) is provided with a covering piece (7); the covering piece (7) is hinged with the shell (6), and an observation opening is formed in the covering piece (7); a shielding sheet (8) is arranged outside the observation port; the shielding piece (8) is fixedly connected with the covering piece (7); the shielding sheet (8) is made of transparent materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311206648.XA CN117183420A (en) | 2023-09-18 | 2023-09-18 | Preparation process of paint surface protective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311206648.XA CN117183420A (en) | 2023-09-18 | 2023-09-18 | Preparation process of paint surface protective film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117183420A true CN117183420A (en) | 2023-12-08 |
Family
ID=88983227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311206648.XA Pending CN117183420A (en) | 2023-09-18 | 2023-09-18 | Preparation process of paint surface protective film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117183420A (en) |
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2023
- 2023-09-18 CN CN202311206648.XA patent/CN117183420A/en active Pending
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