PET protective film coating and drying device

Abstract

The utility model relates to the technical field of PET (Polyethylene Terephthalate) protective film coating, in particular to a PET protective film coating and drying device, which comprises a case and a carrying structure arranged in the case, an air heater is fixedly arranged on the case, the carrying structure comprises a carrying roller rotationally arranged in the case, a first motor is fixedly arranged in the case, and a second motor is fixedly arranged in the case. An output shaft of the first motor is fixedly connected with a rotating frame, the rotating frame is hinged with two groups of hinged plates, the hinged plates are hinged with two groups of blocking frames which are slidably mounted on the carrying rollers, the blocking frames are slidably connected with a plurality of groups of dovetail strips, and the dovetail strips are fixedly connected with the case; the driven film pressing structure is mounted in the case; and the variable-pitch inclined air spraying structure is connected with the air heater. According to the utility model, the supporting structure is matched with the driven film pressing structure to carry out width adjustment operation, so that a dried protective film is guided and limited, the protective film is prevented from deviating in the axial direction of the driven wheel in the conveying process, and the conveying device is suitable for drying operation of protective films with different widths.

Description

Technical Field

[0001] The utility model relates to the technical field of PET protective film coating, in particular to a PET protective film coating and drying device. Background Art

[0002] The full name of PET is polyethylene terephthalate, which is made by the condensation polymerization reaction of terephthalic acid and ethylene glycol. The uses of protective film: surface protection of mobile phones and other electronic products, glass surface protection and insulation, UV protection, etc.

[0003] PET protective film needs to be dried when it is coated. The existing drying device often directly installs the air outlet in the drying box to spray hot air. The protective film is dried while being pulled and moved by the winding device. However, the width of the protective film is quite large. The rollers of the current drying device all adopt fixed structural dimensions, which cannot quickly adapt to the production needs of different specifications of PET protective film drying, and the applicability of the drying device is limited.

[0004] Therefore, those skilled in the art have proposed a PET protective film coating and drying device to solve the problems raised in the above background. Utility Model Content

[0005] The utility model aims to provide a PET protective film coating and drying device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A PET protective film coating and drying device comprises a chassis, a hot air blower is fixedly mounted on the chassis, and further comprises:

[0008] A supporting structure installed in the chassis, the supporting structure includes a carrier roller rotatably installed in the chassis, a first motor is fixedly installed in the chassis, an output shaft of the first motor is fixedly connected to a rotating frame, the rotating frame is hinged with two sets of hinged plates, the hinged plates are hinged with two sets of retaining frames slidably installed on the carrier roller, the retaining frames are slidably connected to multiple sets of dovetail bars, and the dovetail bars are fixedly connected to the chassis;

[0009] A driven pressure film structure installed in the chassis, the driven pressure film structure includes a wheel frame fixedly connected to the chassis, the wheel frame is rotatably connected to a center wheel, two groups of symmetrically arranged prisms are slidably installed on the center wheel, a first spring is installed between the prism and the center wheel, a driven wheel is fixedly installed on one end of the prism away from the center wheel, and the driven wheel abuts against the retaining frame;

[0010] A variable pitch oblique air jet structure connected to a hot air blower.

[0011] As a further improvement scheme of the utility model: the variable pitch oblique air jet structure includes a plurality of oblique frames fixedly connected to the chassis, the oblique frames are fixedly connected to a diverter frame fixedly connected to the hot air blower, a plurality of diverter pipes are rotatably installed on the diverter frame, a guide frame is fixedly installed on the diverter pipe, a plurality of jet heads are slidably installed on the guide frame, a hose is fixedly installed between the jet head and the guide frame, the guide frame is hinged with a synchronous oblique push part, and a locking part movably connected to the guide frame is installed on the jet head.

[0012] As a further improvement of the utility model: the synchronous oblique thrust part includes an active telescopic rod hinged to the chassis, the movable end of the active telescopic rod is fixedly connected to a hinged head, and the hinged head is hinged to a linkage frame hinged to the guide frame.

[0013] As a further improvement scheme of the utility model: the locking part includes a center seat fixedly connected to the nozzle, the center seat is slidably connected to a special-shaped frame, the special-shaped frame is rotatably connected to a twist handle, the twist handle is fixedly connected to a screw threadedly connected to the center seat, and the special-shaped frame is fixedly connected to a friction plate movably connected to the guide frame.

[0014] As a further improvement of the utility model: a suction fan is fixedly mounted on the chassis, a suction head is fixedly connected to the suction fan, and an opening of the suction head faces the air injection head.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] When in use, a carrier roller is used to support the protective film, and a center wheel and a driven wheel are used to apply pressure to the protective film, thereby providing guide support for the protective film, and when drying protective films of different widths, the first motor drives the rotating frame to rotate, and the rotating frame drives the retaining frame to slide on the dovetail bar through the hinged plate, thereby adjusting the spacing between the retaining frames, so that the retaining frame measures the pressure of the side of the protective film, and under the pressure of the retaining frame, the driven wheel drives the prism to press, and the prism presses the first spring, thereby adjusting the width of the driven pressure film structure, so that the width of the driven pressure film structure is adapted to the width of the protective film, and then the hot air blower supplies hot air to the variable pitch oblique air jet structure, and the variable pitch oblique air jet structure blows and dries the protective film. The utility model uses a supporting structure to cooperate with the driven pressure film structure to perform width adjustment operations, thereby guiding and limiting the dried protective film, and avoiding the protective film from being offset along the axial direction of the driven wheel during the transportation process, so that the utility model is suitable for drying protective films of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the utility model from another perspective;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the coordination of the flow divider, the guide frame, the spray head, the hose and the locking part of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the spray head, hose and locking part of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the driven pressure film structure of the utility model.

[0023] In the figure: 1. chassis; 2. hot air blower; 3. supporting structure; 4. carrier roller; 5. first motor; 6. rotating frame; 7. hinged plate; 8. air pressure sensor; 9. baffle frame; 10. dovetail strip; 11. driven pressure film structure; 12. wheel frame; 13. center wheel; 14. prism; 15. driven wheel; 16. variable pitch oblique air jet structure; 17. oblique frame; 18. diverter frame; 19. diverter pipe; 20. guide frame; 21. jet head; 22. hose; 23. synchronous oblique push part; 24. locking part; 25. active telescopic rod; 26. hinged head; 27. linkage frame; 28. center seat; 29. ​​special-shaped frame; 30. twist handle; 31. screw; 32. friction plate; 33. suction fan; 34. suction head. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0025] Example 1, see Figure 1 to Figure 6 As shown, a PET protective film coating and drying device includes a chassis 1, a hot air blower 2 is fixedly installed on the chassis 1, an air pressure sensor 8 is fixedly installed in the chassis 1, and further includes:

[0026] A supporting structure 3 installed in the chassis 1, the supporting structure 3 includes a carrier roller 4 rotatably installed in the chassis 1, a first motor 5 is fixedly installed in the chassis 1, the output shaft of the first motor 5 is fixedly connected to a rotating frame 6, the rotating frame 6 is hinged with two groups of hinged plates 7, the hinged plates 7 are hinged with two groups of retaining frames 9 slidably installed on the carrier roller 4, the retaining frames 9 are slidably connected to multiple groups of dovetail bars 10, and the dovetail bars 10 are fixedly connected to the chassis 1;

[0027] A driven pressure film structure 11 is installed in the chassis 1, and the driven pressure film structure 11 includes a wheel frame 12 fixedly connected to the chassis 1, and the wheel frame 12 is rotatably connected to a center wheel 13, and two groups of symmetrically arranged prisms 14 are slidably installed on the center wheel 13, and a first spring is installed between the prism 14 and the center wheel 13, and a driven wheel 15 is fixedly installed at one end of the prism 14 away from the center wheel 13, and the driven wheel 15 abuts against the retaining frame 9;

[0028] A variable pitch oblique air injection structure 16 connected to the hot air blower 2.

[0029] When in use, the protective film is supported by the carrier roller 4, and the protective film is pressed by the center wheel 13 and the driven wheel 15, so as to provide guide support for the protective film, and when drying protective films of different widths, the first motor 5 drives the rotating frame 6 to rotate, and the rotating frame 6 drives the retaining frame 9 to slide on the dovetail bar 10 through the hinged plate 7, so as to adjust the distance between the retaining frames 9, so that the retaining frame 9 measures the pressure of the side of the protective film, and under the pressure of the retaining frame 9, the driven wheel 15 drives the prism 14 to press, and the prism 14 presses the first spring, so as to adjust the width of the driven pressure film structure 11, so that the width of the driven pressure film structure 11 is adapted to the width of the protective film, and then the hot air blower 2 supplies hot air to the variable pitch oblique air jet structure 16, and the variable pitch oblique air jet structure 16 blows and dries the protective film. The utility model uses the supporting structure 3 to cooperate with the driven film pressure structure 11 to perform width adjustment operations, thereby guiding and limiting the dried protective film to prevent the protective film from being offset along the axial direction of the driven wheel 15 during transportation, making the utility model suitable for drying operations of protective films of different widths.

[0030] In one case of the present embodiment, the variable pitch oblique air jet structure 16 includes a plurality of oblique frames 17 fixedly connected to the chassis 1, the oblique frames 17 are fixedly connected to a diverter frame 18 fixedly connected to the hot air blower 2, a plurality of shunt pipes 19 are rotatably mounted on the diverter frame 18, a guide frame 20 is fixedly mounted on the diverter pipe 19, a plurality of jet heads 21 are slidably mounted on the guide frame 20, a hose 22 is fixedly mounted between the jet head 21 and the guide frame 20, a synchronous oblique pusher 23 is hingedly connected to the guide frame 20, and a locking portion 24 movably connected to the guide frame 20 is mounted on the jet head 21. The hot air blower 2 hammers the hot air into the diverter frame 18, the diverter frame 18 diverts the hot air into the hose 22 through the diverter pipe 19, and then the hot air is sprayed from the jet head 21 to the protective film, the locking portion 24 is used to limit the movement of the jet head 21, and the synchronous oblique pusher 23 is used to adjust the deflection angle of the guide frame 20.

[0031] In one case of this embodiment, the synchronous oblique thrust part 23 includes an active telescopic rod 25 hinged to the chassis 1, the active telescopic rod 25 can be an electric telescopic rod or a hydraulic telescopic rod, a protective sleeve is provided on the active telescopic rod 25, and a hinge joint 26 is fixedly connected to the movable end of the active telescopic rod 25, and the hinge joint 26 is hinged to a linkage frame 27 hinged to the guide frame 20. The active telescopic rod 25 pushes the linkage frame 27 through the hinge joint 26, the linkage frame 27 drives the guide frame 20 to rotate, and the guide frame 20 drives the jet head 21 to move, thereby adjusting the direction of the jet head 21.

[0032] In one case of this embodiment, the locking portion 24 includes a center seat 28 fixedly connected to the jet head 21, the center seat 28 is slidably connected to a special-shaped frame 29, the special-shaped frame 29 is rotatably connected to a twist handle 30, the twist handle 30 is fixedly connected to a screw rod 31 threadedly connected to the center seat 28, and the special-shaped frame 29 is fixedly connected to a friction plate 32 movably connected to the guide frame 20. The twist handle 30 is rotated, the twist handle 30 drives the screw rod 31 to rotate, the screw rod 31 and the center seat 28 move relative to each other, the twist handle 30 drives the special-shaped frame 29 and the center seat 28 to move relative to each other, and the special-shaped frame 29 drives the friction plate 32 to move, thereby adjusting the friction between the friction plate 32 and the guide frame 20.

[0033] Embodiment 2, based on embodiment 1, refer to Figure 1 to Figure 3 A suction fan 33 is fixedly mounted on the chassis 1, and a suction head 34 is fixedly connected to the suction fan 33, and the opening of the suction head 34 faces the nozzle 21. The suction fan 33 absorbs the hot air flowing through the protective film through the suction head 34, so as to discharge the hot air containing moisture out of the chassis 1.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A PET protective film coating and drying device, comprising a chassis, on which a hot air blower is fixedly mounted, characterized in that: Also includes: A supporting structure installed in the chassis, the supporting structure includes a carrier roller rotatably installed in the chassis, a first motor is fixedly installed in the chassis, an output shaft of the first motor is fixedly connected to a rotating frame, the rotating frame is hinged with two sets of hinged plates, the hinged plates are hinged with two sets of retaining frames slidably installed on the carrier roller, the retaining frames are slidably connected to multiple sets of dovetail bars, and the dovetail bars are fixedly connected to the chassis; A driven pressure film structure installed in the chassis, the driven pressure film structure includes a wheel frame fixedly connected to the chassis, the wheel frame is rotatably connected to a center wheel, two groups of symmetrically arranged prisms are slidably installed on the center wheel, a first spring is installed between the prism and the center wheel, a driven wheel is fixedly installed on one end of the prism away from the center wheel, and the driven wheel abuts against the retaining frame; A variable pitch oblique air jet structure connected to a hot air blower.

2. A PET protective film coating and drying device according to claim 1, characterized in that: The variable pitch oblique air jet structure includes a plurality of oblique frames fixedly connected to the chassis, the oblique frames are fixedly connected to a diverter frame fixedly connected to the hot air blower, a plurality of diverter pipes are rotatably mounted on the diverter frame, a guide frame is fixedly mounted on the diverter pipe, a plurality of jet heads are slidably mounted on the guide frame, a hose is fixedly mounted between the jet head and the guide frame, the guide frame is hinged with a synchronous oblique push portion, and a locking portion movably connected to the guide frame is mounted on the jet head.

3. A PET protective film coating and drying device according to claim 2, characterized in that: The synchronous oblique thrust part comprises an active telescopic rod hinged to the chassis, a movable end of the active telescopic rod is fixedly connected to a hinged head, and the hinged head is hinged to a linkage frame hinged to the guide frame.

4. A PET protective film coating and drying device according to claim 3, characterized in that: The locking part includes a center seat fixedly connected to the nozzle, the center seat is slidably connected to a special-shaped frame, the special-shaped frame is rotatably connected to a twist handle, the twist handle is fixedly connected to a screw threadedly connected to the center seat, and the special-shaped frame is fixedly connected to a friction plate movably connected to the guide frame.

5. A PET protective film coating and drying device according to claim 4, characterized in that: A suction fan is fixedly installed on the chassis, and a suction head is fixedly connected to the suction fan, and an opening of the suction head faces the air injection head.

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