Drying device for plastic protective film

Abstract

The utility model provides a drying device for a plastic protective film, and belongs to the technical field of novel polymer packaging materials. According to the drying device for the plastic protective film, a first supporting column is fixedly connected to one side of the top of a base, a second supporting column is fixedly connected to the other side of the top of the base, a transmission roller is arranged at the top of the base, and a plastic film body is movably connected to one side of the transmission roller; an adjusting mechanism is arranged at the top of the plastic film body, and a drying mechanism is arranged at the top of the adjusting mechanism; compared with the prior art, the plastic film has the advantages that the heat-resistant felt is arranged, water drops on the surface of the plastic film body are adsorbed through the heat-resistant felt with the soft surface and the multiple holes, and the situation that the quality of the plastic film body is affected by deformation of the plastic film body due to heating caused by the fact that a dryer directly blows air to the surface of the plastic film body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of new polymer packaging materials, in particular to a drying device for plastic protective films. Background Art

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a coating layer. At present, plastic packaging and plastic packaging products occupy an increasingly large share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields.

[0003] Patent No. CN217083213U proposes a plastic film drying device, which includes a frame, a drying channel is provided in the frame along the vertical direction, a conveying roller is rotatably connected to the top of the frame, the conveying roller is located at the top of the drying channel, the length direction of the conveying roller is consistent with the width direction of the plastic film, the conveying roller is used to transport the plastic film from the bottom to the top of the drying channel, the side wall of the drying channel is connected to a first drying pipe, the first drying pipe is connected to the drying channel, one end of the first drying pipe connected to the drying channel faces the bottom of the drying channel, and the air outlet direction of the first drying pipe is at an angle to the length direction of the drying channel. The application has the following effects: it can facilitate the separation of water droplets from the part of the plastic film being dried, thereby improving the drying efficiency of the first drying pipe for the plastic film.

[0004] When the existing device is in use, a blower is often used to directly blow heated hot air to the plastic film to dry the film, but this method may cause uneven heating of the edge and the middle part of the plastic film, thereby causing wrinkles in the plastic film.

[0005] Therefore, the present application provides a drying device for plastic protective film to meet the needs. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a drying device for plastic protective film to solve the problem that the existing drying mechanism directly contacts the plastic film and easily causes deformation of the film.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] As a preferred solution, a first pillar is fixedly connected to one side of the top of the base, a second pillar is fixedly connected to the other side of the top of the base, a transmission roller is arranged on the top of the base, a plastic film body is movably connected to one side of the transmission roller, an adjustment mechanism is arranged on the top of the plastic film body, and a drying mechanism is arranged on the top of the adjustment mechanism;

[0009] The adjusting mechanism includes a first positioning block, a first bearing ring, a positioning shaft, a bidirectional threaded shaft, a first servo motor, a second positioning block, a first adjusting group and a second adjusting group. The first positioning block is fixedly mounted on the top of the second pillar, a first bearing ring is fixedly mounted on one side of the first positioning block, a positioning shaft is movably mounted on one side of the first bearing ring, the second positioning block is fixedly mounted on the top of the first pillar, a first servo motor is fixedly mounted on one side of the second positioning block, and a bidirectional threaded shaft is fixedly mounted on the output end of the first servo motor. The bidirectional threaded shaft is driven to rotate by starting the first servo motor, thereby driving the threaded sleeves on the first adjusting group and the second adjusting group to move to both sides of the bidirectional threaded shaft at the same time, thereby applying tension to both sides of the heat-resistant felt to prevent the heat-resistant felt from wrinkling when it encounters water, resulting in the heat-resistant felt not being in full contact with the plastic film body, affecting the drying process of the plastic film body.

[0010] As a preferred solution, the first adjustment group and the second adjustment group are symmetrically arranged with the base as the center, and the first adjustment group and the first bearing ring both include a second bearing ring, a cross clamp, a threaded sleeve, an inner ring and a first limiting ring, the second bearing ring is movably sleeved on one side of the positioning shaft, a cross clamp is fixedly installed on one side of the second bearing ring, a threaded sleeve is fixedly connected on one side of the cross clamp, an inner ring is movably connected on one side of the cross clamp, the interior of the inner ring is fixedly connected with the first limiting ring, and the threaded sleeve is threadedly sleeved on one side of the bidirectional threaded shaft. By clamping the cross clamp on one side of the first limiting ring, when the threaded sleeve moves to one side of the bidirectional threaded shaft, the inner ring fixedly connected with the first limiting ring is simultaneously driven to move together.

[0011] As a preferred solution, the adjustment mechanism also includes a third positioning block, a second servo motor, a first gear, a second gear, a heat-resistant felt and a second limiting ring. The third positioning block is fixedly mounted on one side of the first positioning block, a second servo motor is fixedly mounted on one side of the third positioning block, a first gear is fixedly mounted on the output end of the second servo motor, a second gear is meshed and transmitted on one side of the first gear, a heat-resistant felt is fixedly sleeved on one side of the second gear, and a second limiting ring is provided on one side of the heat-resistant felt. The power of the second servo motor is transmitted to the second gear through the first gear, thereby driving the heat-resistant felt on one side of the second gear to rotate synchronously with the second gear, and the heat-resistant felt is used to absorb moisture, thereby reducing the moisture on the surface of the plastic film body.

[0012] As a preferred solution, the second gear is movably sleeved on one side of the inner ring, and the second limiting ring is fixedly sleeved on one side of the second gear.

[0013] As a preferred solution, the drying mechanism includes a liquid collecting box, a micro air pump, a liquid guide tube, a shell, a base, a liquid collecting tank, a first cover plate, an atomizing nozzle, an air guide tube, and a second cover plate. The liquid collecting box is movably connected between the second gear and the heat-resistant felt. The bottom of the liquid collecting box is connected to the micro air pump, and the micro air pump is connected to the shell through the liquid guide tube. The bottom of the shell is fixedly installed with a base, and a liquid collecting tank is provided on one side of the top of the base. The top of the liquid collecting tank is fixedly installed with a first cover plate, and the top of the first cover plate is provided with an atomizing nozzle, and the top of the atomizing nozzle is provided with an air guide tube, and the air guide tube is connected with the second cover plate. The water droplets flowing out after the heat-resistant felt is squeezed are collected by the liquid collecting box, and then the water droplets collected at the bottom of the liquid collecting box are extracted to the inside of the liquid collecting tank through the liquid guide tube by the micro air pump, and finally the water droplets are atomized by the atomizing nozzle and transported to the bottom of the second cover plate through the air guide tube.

[0014] As a preferred solution, the drying mechanism also includes a drying chamber, a blower, a third cover plate, a heating pipe, an air outlet, a guide plate and a pressure roller. The drying chamber is fixedly mounted on the bottom of the second cover plate, one side of the drying chamber is connected to the blower, the bottom of the drying chamber is fixedly mounted with a third cover plate, the bottom of the third cover plate is provided with a heating pipe, the air outlet is opened at the bottom of the other side of the base, the bottom of the air outlet is provided with a guide plate, and the pressure roller is movably mounted on the bottom of the base. The water mist inside the drying chamber is blown to the bottom of the third cover plate by the blower, and is heated by the heating pipe to form steam. After heating the heat-resistant felt, the steam will evaporate into the air due to its own high temperature and will not stay inside the heat-resistant felt, thereby achieving the drying process of the heat-resistant felt.

[0015] As a preferred solution, the pressure roller is movably connected to the top of the heat-resistant felt, and the drying chamber is fixedly installed on the top of the base.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] 1. A drying device for plastic protective film, which is provided with a heat-resistant felt. The heat-resistant felt having a soft surface and multiple pores can be used to absorb water droplets on the surface of a plastic film body, thereby preventing the plastic film body from being easily damaged by external forces. At the same time, the residual heat of the heat-resistant felt after drying will be conducted to the plastic film body without affecting the plastic film body, thereby preventing the dryer from blowing directly onto the surface of the plastic film body, causing the plastic film body to be deformed by heat and affecting the quality of the plastic film body.

[0018] 2. A drying device for plastic protective film, which is provided with a pressure roller, and the water droplets absorbed by the heat-resistant felt are squeezed by the pressure roller, and then collected by a liquid collecting box, and then the heat-resistant felt is dried after forming water vapor through an atomizing nozzle and a heating tube. The water vapor is used as a medium to quickly conduct heat to the position where the heat-resistant felt needs to be dried. Under the action of the strong wind blown by the blower, the moisture will be quickly dried and will not stay in the heat-resistant felt. The purpose of the heat-resistant felt cyclically absorbing the water droplets on the surface of the plastic film body is achieved by continuously rotating the heat-resistant felt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0020] Figure 1 This is a schematic diagram of the main structure of a drying device for plastic protective film;

[0021] Figure 2 It is a schematic diagram of the main structure of an adjustment mechanism of a drying device for plastic protective film;

[0022] Figure 3 It is a schematic diagram of the partial structure of an adjustment mechanism of a drying device for plastic protective film;

[0023] Figure 4 It is a schematic diagram of the gear transmission structure of the regulating mechanism;

[0024] Figure 5 It is a schematic diagram of the main structure of the drying mechanism;

[0025] Figure 6 It is a schematic diagram of the local structure of the drying mechanism;

[0026] Figure 7 This is a schematic diagram of the decomposed structure of the drying mechanism.

[0027] [reference numerals]

[0028] 1. Base; 2. First pillar; 3. Second pillar; 4. Drive roller; 5. Plastic film body; 6. Adjustment mechanism; 61. First adjustment group; 62. Second adjustment group; 601. First positioning block; 602. First bearing ring; 603. Positioning shaft; 604. Second bearing ring; 605. Cross block; 606. Threaded sleeve; 607. Bidirectional threaded shaft; 608. Inner ring; 609. First limiting ring; 610. First servo motor; 611. Second positioning block; 612. Third positioning block; 613. Second servo motor ; 614, first gear; 615, second gear; 616, heat-resistant felt; 617, second limiting ring; 7, drying mechanism; 701, liquid collecting box; 702, micro air pump; 703, liquid guide tube; 704, shell; 705, base; 706, liquid collecting tank; 707, first cover plate; 708, atomizing nozzle; 709, air guide tube; 710, second cover plate; 711, drying chamber; 712, blower; 713, third cover plate; 714, heating tube; 715, air outlet; 716, guide plate; 717, pressure roller.

[0029] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example

[0032] like Figure 1 As shown, the embodiment of the utility model provides a drying device for plastic protective film, including a first support 2 fixedly connected to one side of the top of a base 1, a second support 3 fixedly connected to the other side of the top of the base 1, a transmission roller 4 is arranged on the top of the base 1, a plastic film body 5 is movably connected to one side of the transmission roller 4, an adjustment mechanism 6 is arranged on the top of the plastic film body 5, and a drying mechanism 7 is arranged on the top of the adjustment mechanism 6;

[0033] like Figure 2 , Figure 3 and Figure 4As shown, the adjustment mechanism 6 includes a first positioning block 601, a first bearing ring 602, a positioning shaft 603, a bidirectional threaded shaft 607, a first servo motor 610, a second positioning block 611, a first adjustment group 61 and a second adjustment group 62. The first positioning block 601 is fixedly installed on the top of the second pillar 3, the first bearing ring 602 is fixedly installed on one side of the first positioning block 601, the positioning shaft 603 is movably installed on one side of the first bearing ring 602, the second positioning block 611 is fixedly installed on the top of the first pillar 2, the first servo motor 610 is fixedly installed on one side of the second positioning block 611, and the bidirectional threaded shaft 607 is fixedly installed on the output end of the first servo motor 610.

[0034] The first adjustment group 61 and the second adjustment group 62 are symmetrically arranged with the base 1 as the center, and the first adjustment group 61 and the first bearing ring 602 both include a second bearing ring 604, a cross block 605, a threaded sleeve 606, an inner ring 608 and a first limiting ring 609. The second bearing ring 604 is movably sleeved on one side of the positioning shaft 603, a cross block 605 is fixedly installed on one side of the second bearing ring 604, a threaded sleeve 606 is fixedly connected to one side of the cross block 605, an inner ring 608 is movably connected to one side of the cross block 605, the interior of the inner ring 608 is fixedly connected to the first limiting ring 609, and the threaded sleeve 606 is threadedly sleeved on one side of the bidirectional threaded shaft 607.

[0035] The adjustment mechanism 6 also includes a third positioning block 612, a second servo motor 613, a first gear 614, a second gear 615, a heat-resistant felt 616 and a second limiting ring 617. The third positioning block 612 is fixedly installed on one side of the first positioning block 601, and the second servo motor 613 is fixedly installed on one side of the third positioning block 612. The output end of the second servo motor 613 is fixedly installed with a first gear 614, one side of the first gear 614 is meshed with a second gear 615, one side of the second gear 615 is fixedly sleeved with a heat-resistant felt 616, and one side of the heat-resistant felt 616 is provided with a second limiting ring 617.

[0036] The second gear 615 is movably sleeved on one side of the inner ring 608 , and the second limiting ring 617 is fixedly sleeved on one side of the second gear 615 .

[0037] It needs to be further explained that: when it is necessary to increase the tension on the side of the heat-resistant felt 616, the first servo motor 610 is started to drive the bidirectional threaded shaft 607 to rotate. When the bidirectional threaded shaft 607 rotates, the threaded sleeves 606 on the first adjustment group 61 and the second adjustment group 62 are driven by the bidirectional threaded shaft 607 to move to both sides of the bidirectional threaded shaft 607 at the same time, thereby driving the inner ring 608 to apply tension to both sides of the heat-resistant felt 616. At this time, the heat-resistant felt 616 maintains a taut annular state and is always in full contact with the plastic film body 5.

[0038] like Figure 5 , Figure 6 and Figure 7 As shown, the drying mechanism 7 includes a liquid collecting box 701, a micro air pump 702, a liquid guide tube 703, a shell 704, a base 705, a liquid collecting tank 706, a first cover plate 707, an atomizing nozzle 708, an air guide tube 709 and a second cover plate 710. The liquid collecting box 701 is movably connected between the second gear 615 and the heat-resistant felt 616. The bottom of the liquid collecting box 701 is connected to the micro air pump 702. The micro air pump 702 is connected to the shell 704 through the liquid guide tube 703. The base 705 is fixedly installed on the bottom of the shell 704. A liquid collecting tank 706 is opened on one side of the top of the base 705. The top of the liquid collecting tank 706 is fixedly installed with a first cover plate 707. The top of the first cover plate 707 is provided with an atomizing nozzle 708. The top of the atomizing nozzle 708 is provided with an air guide tube 709. The air guide tube 709 is connected to the second cover plate 710.

[0039] The drying mechanism 7 also includes a drying chamber 711, a blower 712, a third cover plate 713, a heating tube 714, an air outlet 715, a guide plate 716 and a pressure roller 717. The drying chamber 711 is fixedly installed at the bottom of the second cover plate 710. One side of the drying chamber 711 is connected to the blower 712. The third cover plate 713 is fixedly installed at the bottom of the drying chamber 711. The bottom of the third cover plate 713 is provided with a heating tube 714. The air outlet 715 is opened at the bottom of the other side of the base 705. The bottom of the air outlet 715 is provided with a guide plate 716. The pressure roller 717 is movably installed at the bottom of the base 705.

[0040] The pressure roller 717 is movably connected to the top of the heat-resistant felt 616 , and the drying chamber 711 is fixedly installed on the top of the base 705 .

[0041] It needs to be further explained that: when the heat-resistant felt 616 is squeezed by the pressure roller 717, the water droplets inside the heat-resistant felt 616 will seep out to both sides. At this time, the seeped water droplets are collected by the liquid collecting box 701. The water droplets gather to the bottom of the liquid collecting box 701 under the action of gravity. By starting the micro air pump 702, the water droplets at the bottom of the liquid collecting box 701 are drawn into the inside of the liquid guide tube 703, and then enter the inside of the liquid collecting tank 706. Since the liquid collecting tank 706 is a closed space, the pressure inside the liquid collecting tank 706 increases under the action of the micro air pump 702, and the water droplets inside the liquid collecting tank 706 are discharged through the mist. After the water mist is formed by the nozzle 708, it enters the bottom of the second cover plate 710 through the air guide pipe 709, and further enters the interior of the drying chamber 711. At this time, the blower 712 is started to supply air to the interior of the drying chamber 711. Under the action of wind, the water mist inside the drying chamber 711 is heated by the heating pipe 714 and then blown to the surface of the heat-resistant felt 616 through the air outlet 715. The high-temperature water vapor heats the heat-resistant felt 616 and then evaporates into the air. At the same time, after the heat-resistant felt 616 contacts the outside air for heat dissipation, the temperature drops to 30 to 40 degrees Celsius, which will not affect the plastic film body 5.

[0042] Working principle and use process of the utility model: During the use of the utility model, when a drying device for plastic protective film is used, first, the plastic film body 5 passes through the driving roller 4 and the heat-resistant felt 616 in sequence and is connected to the winding roller for placement.

[0043] Next, when it is necessary to increase the tension on the side of the heat-resistant felt 616, the first servo motor 610 is started to drive the bidirectional threaded shaft 607 to rotate. When the bidirectional threaded shaft 607 rotates, the threaded sleeves 606 on the first adjustment group 61 and the second adjustment group 62 are driven by the bidirectional threaded shaft 607 to move to both sides of the bidirectional threaded shaft 607 at the same time, thereby driving the inner ring 608 to apply tension to both sides of the heat-resistant felt 616. At this time, the heat-resistant felt 616 maintains a taut annular state and is always in full contact with the plastic film body 5.

[0044] Next, when the heat-resistant felt 616 is squeezed by the pressure roller 717, the water droplets inside the heat-resistant felt 616 will seep out to both sides. At this time, the seeped water droplets are collected by the liquid collecting box 701. The water droplets gather to the bottom of the liquid collecting box 701 under the action of gravity. The water droplets at the bottom of the liquid collecting box 701 are pumped into the inside of the liquid guide tube 703 by starting the micro air pump 702, and then enter the inside of the liquid collecting tank 706. Since the liquid collecting tank 706 is a closed space, the pressure inside the liquid collecting tank 706 increases under the action of the micro air pump 702, and the water droplets inside the liquid collecting tank 706 pass through the atomizing nozzle 706. 08 After the water mist is formed, it enters the bottom of the second cover plate 710 through the air guide pipe 709, and further enters the interior of the drying chamber 711. At this time, the blower 712 is started to supply air to the interior of the drying chamber 711. Under the action of wind force, the water mist inside the drying chamber 711 is heated by the heating pipe 714 and then blown to the surface of the heat-resistant felt 616 through the air outlet 715. The high-temperature water vapor heats the heat-resistant felt 616 and then evaporates into the air. At the same time, after the heat-resistant felt 616 contacts the outside air for heat dissipation, the temperature drops to 30 to 40 degrees Celsius, which will not affect the plastic film body 5.

[0045] Finally, the second servo motor 613 is started to drive the first gear 614 to rotate, thereby driving the heat-resistant felt 616 on one side of the second gear 615 to rotate, and the water droplets on the surface of the plastic film body 5 are adsorbed by the heat-resistant felt 616.

[0046] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drying device for plastic protective film, characterized in that: The invention comprises a first support (2) fixedly connected to one side of the top of a base (1), a second support (3) fixedly connected to the other side of the top of the base (1), a transmission roller (4) arranged on the top of the base (1), a plastic film body (5) movably connected to one side of the transmission roller (4), an adjustment mechanism (6) arranged on the top of the plastic film body (5), and a drying mechanism (7) arranged on the top of the adjustment mechanism (6); An adjusting mechanism (6), the adjusting mechanism (6) comprising a first positioning block (601), a first bearing ring (602), a positioning shaft (603), a bidirectional threaded shaft (607), a first servo motor (610), a second positioning block (611), a first adjusting group (61) and a second adjusting group (62), the first positioning block (601) being fixedly mounted on the top of the second pillar (3), the first bearing ring (602) being fixedly mounted on one side of the first positioning block (601), the positioning shaft (603) being movably mounted on one side of the first bearing ring (602), the second positioning block (611) being fixedly mounted on the top of the first pillar (2), the first servo motor (610) being fixedly mounted on one side of the second positioning block (611), and the bidirectional threaded shaft (607) being fixedly mounted on the output end of the first servo motor (610).

2. A drying device for plastic protective film according to claim 1, characterized in that: The first adjustment group (61) and the second adjustment group (62) are symmetrically arranged with the base (1) as the center, and the first adjustment group (61) and the first bearing ring (602) both include a second bearing ring (604), a cross clamp (605), a threaded sleeve (606), an inner ring (608) and a first limiting ring (609); the second bearing ring (604) is movably sleeved on one side of the positioning shaft (603); a cross clamp (605) is fixedly installed on one side of the second bearing ring (604); a threaded sleeve (606) is fixedly connected to one side of the cross clamp (605); an inner ring (608) is movably connected to one side of the cross clamp (605); the interior of the inner ring (608) is fixedly connected to the first limiting ring (609); and the threaded sleeve (606) is threadedly sleeved on one side of the bidirectional threaded shaft (607).

3. A drying device for plastic protective film according to claim 1, characterized in that: The adjustment mechanism (6) further comprises a third positioning block (612), a second servo motor (613), a first gear (614), a second gear (615), a heat-resistant felt (616) and a second limiting ring (617); the third positioning block (612) is fixedly mounted on one side of the first positioning block (601); the second servo motor (613) is fixedly mounted on one side of the third positioning block (612); the first gear (614) is fixedly mounted on the output end of the second servo motor (613); one side of the first gear (614) is meshed with the second gear (615); one side of the second gear (615) is fixedly sleeved with the heat-resistant felt (616); and one side of the heat-resistant felt (616) is provided with a second limiting ring (617).

4. A drying device for plastic protective film according to claim 3, characterized in that: The second gear (615) is movably sleeved on one side of the inner ring (608), and the second limiting ring (617) is fixedly sleeved on one side of the second gear (615).

5. The drying device for plastic protective film according to claim 1, characterized in that: The drying mechanism (7) comprises a liquid collecting box (701), a micro air pump (702), a liquid guide tube (703), a housing (704), a base (705), a liquid collecting tank (706), a first cover plate (707), an atomizing nozzle (708), an air guide tube (709) and a second cover plate (710); the liquid collecting box (701) is movably connected between the second gear (615) and the heat-resistant felt (616); the bottom of the liquid collecting box (701) is connected to the micro air pump (702); the micro air pump (702) ) is connected to the outer shell (704) through a liquid guide tube (703); a base (705) is fixedly installed at the bottom of the outer shell (704); a liquid collecting tank (706) is opened on one side of the top of the base (705); a first cover plate (707) is fixedly installed on the top of the liquid collecting tank (706); an atomizing nozzle (708) is arranged on the top of the first cover plate (707); an air guide tube (709) is arranged on the top of the atomizing nozzle (708); and the air guide tube (709) is connected to the second cover plate (710).

6. A drying device for plastic protective film according to claim 1, characterized in that: The drying mechanism (7) further comprises a drying chamber (711), a blower (712), a third cover plate (713), a heating tube (714), an air outlet (715), a guide plate (716) and a pressure roller (717); the drying chamber (711) is fixedly mounted on the bottom of the second cover plate (710); one side of the drying chamber (711) is connected to the blower (712); the third cover plate (713) is fixedly mounted on the bottom of the drying chamber (711); the bottom of the third cover plate (713) is provided with a heating tube (714); the air outlet (715) is opened at the bottom of the other side of the base (705); the bottom of the air outlet (715) is provided with a guide plate (716); and the pressure roller (717) is movably mounted on the bottom of the base (705).

7. A drying device for plastic protective film according to claim 6, characterized in that: The pressure roller (717) is movably connected to the top of the heat-resistant felt (616), and the drying chamber (711) is fixedly installed on the top of the base (705).

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