Door plate film covering device

Abstract

The utility model belongs to the technical field of door plate film covering, and particularly relates to a door plate film covering device which comprises a conveying frame. A cleaning box is slidably arranged in the support, transmission rollers are arranged at the two ends in the cleaning box, a spray pipe is arranged on the side, close to the feeding end, in the cleaning box, one end of the spray pipe is fixedly installed on the inner wall of the cleaning box, a roller brush is arranged on one side of the spray pipe, and the two ends of the spray pipe are rotatably installed in the cleaning box through bearings. A water tank is arranged below the cleaning box, a water pump is fixedly installed on one side of the water tank, a three-way pipe is fixedly connected to the water outlet end of the water pump, one end of the three-way pipe is fixedly connected with the spraying pipe in the conveying frame, and the other end of the three-way pipe is fixedly connected with the cleaning box. The other end is fixedly connected with the spray pipe in the cleaning box through a hose; water is sprayed to the upper and lower surfaces of the door plate through the water spraying pipe, and then the roller brush is used for brushing to thoroughly remove impurities on the surface of the door plate and avoid bubbles generated by the impurities during film covering.

Description

Technical Field

[0001] The utility model relates to the technical field of door panel film covering, in particular to a door panel film covering device. Background Technique

[0002] The door panel is the main part of the door, usually made of wood or other materials, used to close the door opening and play a role in partitioning space. The surface of the door panel can be film-covered to increase aesthetics, durability and environmental protection.

[0003] The door panel film covering device usually includes parts such as a conveying mechanism, a film covering mechanism, a pressing mechanism and a collecting mechanism. The conveying mechanism is responsible for conveying the door panel to the film covering position, the film covering mechanism covers the film paper on the surface of the door panel, the pressing mechanism tightly adheres the film paper to the door panel through a certain pressure and temperature, and finally the collecting mechanism collects the door panel after film covering.

[0004] When using the film covering device to cover the door panel with film, if there are oil or sticky substances on the surface of the door panel, simply using a brush to clean may evenly disperse these substances on the surface of the door panel, making the film-covered door panel prone to problems such as bubbles, wrinkles or peeling during use, seriously affecting the film covering effect and service life; therefore, a door panel film covering device is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art, when using the film covering device to cover the door panel with film, if there are oil or sticky substances on the surface of the door panel, simply using a brush to clean may evenly disperse these substances on the surface of the door panel, making the film-covered door panel prone to problems such as bubbles, wrinkles or peeling during use, seriously affecting the film covering effect and service life, the utility model proposes a door panel film covering device.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A door panel film laminating device of the present utility model includes a conveying frame; a plurality of rotating rollers are arranged in parallel inside the conveying frame, and both ends of the rotating rollers are rotatably installed in the conveying frame through bearings. On both sides of the upper part of the feeding end of the conveying frame, brackets are fixedly installed. A cleaning box is slidably arranged inside the brackets. At both ends inside the cleaning box, driving rollers are arranged, and both ends of the driving rollers are rotatably installed in the cleaning box through bearings. On one side near the feeding end inside the cleaning box, a spray pipe is arranged. One end of the spray pipe is fixedly installed on the inner wall of the cleaning box. On one side of the spray pipe, a roller brush is arranged, and both ends of the roller brush are rotatably installed in the cleaning box through bearings. Spray pipes and roller brushes are also arranged at corresponding positions inside the conveying frame and inside the cleaning box. A water tank is arranged below the cleaning box. A water pump is fixedly installed on one side of the water tank. The water inlet end of the water pump is fixedly connected with a water suction pipe extending to the bottom inside the water tank. The water outlet end of the water pump is fixedly connected with a three-way pipe. One end of the three-way pipe is fixedly connected with the spray pipe inside the conveying frame, and the other end is fixedly connected with the spray pipe inside the cleaning box through a hose. Above and below the heat pressing rollers arranged in parallel up and down on one side near the discharging end in the center of the conveying frame, film laminating roller frames and tensioning frames are fixedly installed. The upper and lower surfaces of the door panel are sprayed with water through a spray water pipe, and then brushed by a roller brush to thoroughly remove impurities on the surface of the door panel, avoiding the generation of bubbles due to impurities during film lamination.

[0007] Preferably, a cylinder is fixedly installed on the top of the bracket. On both sides of the upper part of the cleaning box, clamping blocks are fixedly installed. A clamping groove is opened inside the clamping blocks, and a lifting plate is slidably installed inside the clamping groove. The lifting plate is fixedly installed at the front end of the piston rod of the cylinder. Slide holes are opened at both ends of the lifting plate and the cleaning box. The lifting plate and the cleaning box are both slidably installed on the bracket. Buffer springs are arranged between both ends of the lifting plate and the cleaning box, sleeved on the two support rods on both sides of the bracket. The cleaning box is lifted by the cylinder to adapt to cleaning door panels of different thicknesses.

[0008] Preferably, motors are fixedly installed on the same side of the same end of the conveying frame and the cleaning box. One end of the driving roller and the roller brush both penetrate through the cleaning box. One end of the rotating roller, the roller brush, and the heat pressing roller all penetrate through the conveying frame and are fixedly installed with rotating wheels. The rotating wheels are driven to rotate in cooperation through belts. The door panel is fed through the cooperation of the motor, the rotating wheels, and the belt, and at the same time, the roller brush is driven to rotate.

[0009] Preferably, a filter plate is inclinedly arranged inside the water tank. Both sides of the filter plate are fixedly installed inside the water tank. A chute is opened on one side at the lower end of the water tank, and a waste box is slidably installed inside the chute. The waste box is arranged on one side below the lower end of the filter plate. The impurities after cleaning are filtered by the filter plate, so that the water in the water tank can be recycled.

[0010] Preferably, a wind box is provided at one end of the conveying rack close to the cleaning box. The wind box is sleeved on the conveying rack. A blower is fixedly installed on the top of the wind box. The air outlet end of the blower is fixedly connected with an air pipe. An air heater is fixedly arranged on the air pipe. A shunt pipe is arranged on one side of the wind box. A shunt block is fixedly installed in the center of the shunt pipe. The two ends of the shunt pipe are respectively fixedly connected to the upper and lower ends on one side of the wind box. Air inlet plates are arranged at the connection ports of the wind box and the shunt pipe. The air inlet plates are fixedly installed inside the wind box, and a plurality of air holes are opened on the air inlet plates. While drying the upper and lower surfaces of the door panel through the wind box, preheating is also carried out.

[0011] Preferably, limiting rods are fixedly installed on both sides of the upper part of the conveying rack. A screw rod is arranged on one side of the limiting rod and rotatably installed on the conveying rack. A sliding plate is arranged at the upper ends of the limiting rod and the screw rod. A through hole is opened at one end of the sliding plate, and a threaded hole is opened at the other end. One end of the sliding plate is slidably installed on the limiting rod, and the other end is slidably installed on the screw rod. A limiting hole is opened in the center of the sliding plate. A guide rod is slidably installed in the limiting hole. A slider is fixedly installed at the lower end of the guide rod. A damping spring is arranged between the slider and the sliding plate and sleeved on the guide rod. Both ends of the hot pressing roller above the conveying rack are rotatably installed in the sliders through bearings. By means of the damping spring to buffer the force when the door panel passes through the hot pressing roller, it is prevented that excessive pressure causes damage to the door panel.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. When laminating the door panel, the motor and the water pump are started. The motor drives the rotating roller, the roller brush, the driving roller and the hot pressing roller to rotate. The door panel is placed between the rotating roller and the driving roller for feeding. The water pump pumps out the water at the bottom of the water tank through the water suction pipe, and then pumps it into the spray pipe through the three-way pipe and the hose for spraying. When the door panel passes between the spray pipes, the water flow flushes away the impurities on the door panel, and at the same time, the water also softens the grease and sticky substances on the door panel. When the door panel passes through the roller brush, the roller brush conducts secondary cleaning on the door panel to clean the impurities on the door panel. Then the rotating roller drives the door panel to pass through the wind box for drying and preheating. The laminating film on the laminating roller frame passes through the tensioning frame and is respectively placed on the upper and lower parts of the door panel, and then the hot pressing roller is used for roller pressing and laminating. Through the structural design, the function of automatic cleaning is realized, and the problem is solved that when using the laminating device to laminate the door panel, if there are grease or sticky substances on the surface of the door panel, only using a brush to clean may evenly disperse these substances on the surface of the door panel, resulting in problems such as bubbles, wrinkles or peeling on the laminated door panel during use, seriously affecting the laminating effect and service life, and the laminating effect is improved. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 Schematic diagram of the feeding end structure of the film laminating device;

[0016] Figure 2 Schematic diagram of the discharging end structure of the film laminating device;

[0017] Figure 3 Schematic diagram of the sectional structure of the film laminating device;

[0018] Figure 4 Schematic diagram of the internal connection structure of the air box;

[0019] Figure 5 Schematic diagram of the hot pressing roller adjusting mechanism structure.

[0020] In the figure: 1, conveying frame; 2, rotating roller; 3, bracket; 4, cleaning box; 5, lifting plate; 6, cylinder; 7, clamping block; 8, buffer spring; 9, driving roller; 10, spray pipe; 11, roller brush; 12, motor; 13, rotating wheel; 14, belt; 15, hose; 16, water pump; 17, water tank; 18, filter plate; 19, waste box; 20, air box; 21, air inlet plate; 22, fan; 23, air pipe; 24, air heater; 25, shunt pipe; 26, shunt block; 27, limiting rod; 28, screw; 29, sliding plate; 30, guide rod; 31, slider; 32, hot pressing roller; 33, damping spring; 34, tensioning frame; 35, film laminating roller frame. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1-5As shown in the figure, a door panel film laminating device includes a conveying frame 1. Inside the conveying frame 1, a plurality of rotating rollers 2 are arranged in parallel. Both ends of the rotating roller 2 are rotatably installed in the conveying frame 1 through bearings. On both sides of the upper part of the feeding end of the conveying frame 1, brackets 3 are fixedly installed. Inside the brackets 3, a cleaning box 4 is slidably arranged. At both ends inside the cleaning box 4, driving rollers 9 are arranged. Both ends of the driving roller 9 are rotatably installed in the cleaning box 4 through bearings. On one side of the cleaning box 4 near the feeding end, a spray pipe 10 is arranged. One end of the spray pipe 10 is fixedly installed on the inner wall of the cleaning box 4. On one side of the spray pipe 10, a roller brush 11 is arranged. Both ends of the roller brush 11 are rotatably installed in the cleaning box 4 through bearings. At the corresponding positions inside the conveying frame 1 and inside the cleaning box 4, a spray pipe 10 and a roller brush 11 are also arranged. Below the cleaning box 4, a water tank 17 is arranged. On one side of the water tank 17, a water pump 16 is fixedly installed. The water inlet end of the water pump 16 is fixedly connected with a water suction pipe extending to the bottom inside the water tank 17. The water outlet end of the water pump 16 is fixedly connected with a three-way pipe. One end of the three-way pipe is fixedly connected with the spray pipe 10 inside the conveying frame 1, and the other end is fixedly connected with the spray pipe 10 inside the cleaning box 4 through a hose 15. Near one side of the discharging end in the center of the conveying frame 1, upper and lower parallel hot pressing rollers 32 are arranged. Among them, both ends of the lower hot pressing roller 32 are rotatably installed in the conveying frame 1 through bearings, and the other one is slidably arranged above the conveying frame 1. Above and below both sides of the hot pressing roller 32 on the conveying frame 1, film laminating roller frames 35 and tensioning frames 34 are fixedly installed. During operation, when using the film laminating device to laminate a door panel, if there are grease or sticky substances on the surface of the door panel, only using a brush to clean may evenly disperse these substances on the surface of the door panel, making it easy for bubbles, wrinkles or peeling to occur during the use of the laminated door panel. When laminating the door panel, start the cylinder 6. The piston rod of the cylinder 6 pulls the lifting plate 5 to slide on the bracket 3. The bracket 3 drives the cleaning box 4 to rise through the clamping block 7. Adjust the distance between the cleaning box 4 and the conveying frame 1 according to the thickness of the door panel to allow the door panel to pass through. Start the motor 12 and the water pump 16. The motor 12 drives the rotating roller 2, the roller brush 11, the driving roller 9 and the hot pressing roller 32 to rotate. Place the door panel between the rotating roller 2 and the driving roller 9 for feeding. The water pump 16 pumps out the water at the bottom of the water tank 17 through the water suction pipe, and then pumps it into the spray pipe 10 through the three-way pipe and the hose 15 for spraying. When the door panel passes between the spray pipes 10, the water flow flushes away the impurities on the door panel, and at the same time softens the grease and sticky substances on the door panel. When the door panel passes through the roller brush 11, the roller brush 11 performs secondary cleaning on the door panel to clean the impurities on the door panel. Then the rotating roller 2 drives the door panel to pass through the air box 20 for preheating by baking. The film on the film laminating roller frame 35 passes through the tensioning frame 34 and is placed on the upper and lower parts of the door panel respectively, and then it is roller-pressed and laminated by the hot pressing roller 32.

[0023] A cylinder 6 is fixedly installed at the top of the bracket 3. On both sides of the upper part of the cleaning box 4, clamping blocks 7 are fixedly installed. A clamping groove is formed in the clamping block 7, and a lifting plate 5 is slidably installed in the clamping groove. The lifting plate 5 is fixedly installed at the front end of the piston rod of the cylinder 6. Slide holes are formed at both ends of the lifting plate 5 and the cleaning box 4. Both the lifting plate 5 and the cleaning box 4 are slidably installed on the bracket 3. Buffer springs 8 are arranged between both ends of the lifting plate 5 and the cleaning box 4 and are sleeved on the two side support rods of the bracket 3. During operation, when laminating the door panel, the cylinder 6 is started. The piston rod of the cylinder 6 pulls the lifting plate 5 to slide on the bracket 3, and the bracket 3 drives the cleaning box 4 to rise through the clamping block 7. The distance between the cleaning box 4 and the conveyor frame 1 is adjusted according to the thickness of the door panel, so that the door panel is cleaned through the cleaning box 4. At the same time, the buffer spring 8 is used to adjust the pressure received by the door panel when passing through.

[0024] On the same side of the same end of the conveyor frame 1 and the cleaning box 4, motors 12 are fixedly installed. The same end of the driving roller 9 and the roller brush 11 both penetrate the cleaning box 4. The same end of the rotating roller 2, the roller brush 11 and the hot pressing roller 32 all penetrate the conveyor frame 1 and are fixedly installed with rotating wheels 13. The rotating wheels 13 are rotatably matched with each other through belts 14. During operation, when laminating the door panel, the motors 12 on the conveyor frame 1 and the cleaning box 4 are started simultaneously. The motors 12 drive the rotating roller 2, the roller brush 11 and the hot pressing roller 32 and the driving roller 9 and the roller brush 11 to rotate respectively under the action of the rotating wheels 13 and the belts 14, so as to load, clean and laminate the door panel.

[0025] A filter plate 18 is inclinedly arranged inside the water tank 17. Both sides of the filter plate 18 are fixedly installed in the water tank 17. A chute is opened on one side of the lower end of the water tank 17, and a waste box 19 is slidably installed in the chute. The waste box 19 is arranged on one side below the lower end of the filter plate 18. During operation, when laminating the door panel, when the spray pipe 10 and the roller brush 11 clean the door panel, the water flow mixed with impurities falls into the lower water tank 17 and is filtered by the inclined filter plate 18. The impurities fall into the lower waste box 19, and the filtered clean water enters the bottom of the water tank 17 for recycling.

[0026] One end of the conveying rack 1 close to the cleaning box 4 is provided with an air box 20. The air box 20 is sleeved on the conveying rack 1. A blower 22 is fixedly installed on the top of the air box 20. The air outlet end of the blower 22 is fixedly connected with an air pipe 23. An air heater 24 is fixedly arranged on the air pipe 23. A shunt pipe 25 is arranged on one side of the air box 20. A shunt block 26 is fixedly installed in the center of the shunt pipe 25. Two ends of the shunt pipe 25 are respectively fixedly connected to the upper and lower ends on one side of the air box 20. Air inlet plates 21 are arranged at the connection ports of the air box 20 and the shunt pipe 25. The air inlet plates 21 are fixedly installed inside the air box 20, and a plurality of air holes are formed in the air inlet plates 21. During operation, when laminating the door panel, the blower 22 and the air heater 24 are started. The blower 22 extracts external air and feeds it into the air pipe 23, and then it is heated by the air heater 24 and pumped into the shunt pipe 25. It is shunted by the shunt block 26 in the shunt pipe 25 and blown to the surface of the door panel through the air holes in the air inlet plates 21 at the top and bottom of the air box 20, evaporating the water on the surface of the door panel and simultaneously preheating the surface of the door panel by baking.

[0027] Limit rods 27 are fixedly installed on both sides of the upper part of the conveying rack 1. A screw rod 28 is arranged on one side of the limit rod 27 and rotatably installed on the conveying rack 1. A slide plate 29 is arranged at the upper ends of the limit rod 27 and the screw rod 28. One end of the slide plate 29 is provided with a through hole, and the other end is provided with a threaded hole. One end of the slide plate 29 is slidably installed on the limit rod 27, and the other end is slidably installed on the screw rod 28. A limit hole is formed in the center of the slide plate 29. A guide rod 30 is slidably installed in the limit hole. A slider 31 is fixedly installed at the lower end of the guide rod 30. A damping spring 33 is arranged between the slider 31 and the slide plate 29 and sleeved on the guide rod 30. Both ends of the hot pressing roller 32 above the conveying rack 1 are rotatably installed in the slider 31 through bearings. During operation, when laminating the door panel, the screw rod 28 is rotated by the handle on the screw rod 28. The screw rod 28 drives the slide plate 29 to slide upward, and at the same time the other end slides on the limit rod 27. The slide plate 29 drives the slider 31 to move upward through the guide rod 30. The slider 31 drives the hot pressing roller 32 to move upward, adjusting the distance between the two hot pressing rollers 32 to allow the door panel to pass through. At the same time, the door panel drives the slider 31 to move upward through the hot pressing roller 32. The slider 31 and the slide plate 29 compress the damping spring 33. The force when the damping spring 33 deforms buffers a part of the pressure received by the door panel, preventing the door panel from deforming due to excessive force.

[0028] Working principle: When laminating the door panel, the cylinder 6 is started. The piston rod of the cylinder 6 pulls the lifting plate 5 to slide on the bracket 3. The bracket 3 drives the cleaning box 4 to rise through the clamping block 7. The distance between the cleaning box 4 and the conveyor frame 1 is adjusted according to the thickness of the door panel to allow the door panel to pass through. Then, the motor 12 and the water pump 16 are started. The motor 12 drives the rotating roller 2, the roller brush 11, the driving roller 9, and the hot pressing roller 32 to rotate. The door panel is placed between the rotating roller 2 and the driving roller 9 for feeding. The water pump 16 pumps out the water at the bottom of the water tank 17 through the water suction pipe, and then pumps it into the spray pipe 10 through the three-way pipe and the hose 15 for spraying. When the door panel passes between the spray pipes 10, the water flow flushes away the impurities on the door panel, and at the same time softens the grease and viscous substances on the door panel. When the door panel passes through the roller brush 11, the roller brush 11 performs secondary cleaning on the door panel to clean the impurities on the door panel. Then, the rotating roller 2 drives the door panel to pass through the air box 20 for preheating and drying. The laminating film on the laminating roller frame 35 passes through the tensioning frame 34 and is placed on the upper and lower parts of the door panel respectively, and then is roll-pressed and laminated by the hot pressing roller 32.

[0029] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A door panel film laminating device, characterized in that: It includes a conveying rack (1); a plurality of rotating rollers (2) are arranged in parallel inside the conveying rack (1), both ends of the rotating rollers (2) are rotatably installed in the conveying rack (1) through bearings, brackets (3) are fixedly installed on both sides of the upper part of the feeding end of the conveying rack (1), a cleaning box (4) is slidably arranged inside the brackets (3), driving rollers (9) are arranged at both ends inside the cleaning box (4), both ends of the driving rollers (9) are rotatably installed in the cleaning box (4) through bearings, a spray pipe (10) is arranged on one side close to the feeding end inside the cleaning box (4), one end of the spray pipe (10) is fixedly installed on the inner wall of the cleaning box (4), a roller brush (11) is arranged on one side of the spray pipe (10), both ends of the roller brush (11) are rotatably installed in the cleaning box (4) through bearings, spray pipes (10) and roller brushes (11) are also arranged at corresponding positions inside the conveying rack (1) and inside the cleaning box (4), a water tank (17) is arranged below the cleaning box (4), a water pump (16) is fixedly installed on one side of the water tank (17), the water inlet end of the water pump (16) is fixedly connected with a water suction pipe extending to the inner bottom of the water tank (17), the water outlet end of the water pump (16) is fixedly connected with a three-way pipe, one end of the three-way pipe is fixedly connected with the spray pipe (10) inside the conveying rack (1), and the other end is fixedly connected with the spray pipe (10) inside the cleaning box (4) through a hose (15), hot pressing rollers (32) parallel up and down are arranged on one side close to the discharging end in the center of the conveying rack (1), wherein both ends of the lower hot pressing roller (32) are rotatably installed in the conveying rack (1), and the other one is slidably arranged above the conveying rack (1), film covering roller frames (35) and tensioning frames (34) are fixedly installed on both the upper part and the bottom on both sides of the hot pressing roller (32) in the conveying rack (1).

2. The door panel film laminating device according to claim 1, characterized in that: A cylinder (6) is fixedly installed on the top of the bracket (3), clamping blocks (7) are fixedly installed on both sides of the upper part of the cleaning box (4), a clamping groove is formed inside the clamping blocks (7), a lifting plate (5) is slidably installed inside the clamping groove, the lifting plate (5) is fixedly installed at the front end of the piston rod of the cylinder (6), sliding holes are formed at both ends of the lifting plate (5) and the cleaning box (4), the lifting plate (5) and the cleaning box (4) are both slidably installed on the bracket (3), buffer springs (8) are arranged between both ends of the lifting plate (5) and the cleaning box (4) and are sleeved on the two side support rods of the bracket (3).

3. A door panel film laminating device according to claim 1, characterized in that: Motors (12) are fixedly installed on the same side of the same end of the conveying rack (1) and the cleaning box (4), the same ends of the driving rollers (9) and the roller brushes (11) penetrate through the cleaning box (4), the same ends of the rotating rollers (2), the roller brushes (11) and the hot pressing rollers (32) penetrate through the conveying rack (1), and rotating wheels (13) are fixedly installed, and the rotating wheels (13) are cooperatively rotated through belts (14).

4. A door panel film laminating device according to claim 1, characterized in that: A filter plate (18) is inclinedly arranged inside the water tank (17). Both sides of the filter plate (18) are fixedly installed in the water tank (17). One side at the lower end of the water tank (17) is provided with a chute, and a waste box (19) is slidably installed in the chute. The waste box (19) is arranged below one side of the lower end of the filter plate (18).

5. A door panel film laminating device according to claim 1, characterized in that: A wind box (20) is arranged at one end of the conveyor frame (1) close to the cleaning box (4). The wind box (20) is sleeved on the conveyor frame (1). A blower (22) is fixedly installed at the top of the wind box (20). The air outlet end of the blower (22) is fixedly connected with an air pipe (23). An air heater (24) is fixedly arranged on the air pipe (23). A shunt pipe (25) is arranged on one side of the wind box (20). A shunt block (26) is fixedly installed in the center of the shunt pipe (25). The two ends of the shunt pipe (25) are respectively fixedly connected to the upper and lower ends on one side of the wind box (20). Air inlet plates (21) are arranged at the connection ports of the wind box (20) and the shunt pipe (25). The air inlet plates (21) are fixedly installed inside the wind box (20), and a plurality of air holes are opened on the air inlet plates (21).

6. The door panel film laminating device according to claim 1, characterized in that: Limit rods (27) are fixedly installed on both sides of the upper part of the conveyor frame (1). A screw rod (28) is arranged on one side of the limit rod (27) and is rotatably installed on the conveyor frame (1). A slide plate (29) is arranged at the upper ends of the limit rod (27) and the screw rod (28). A through hole is opened at one end of the slide plate (29), and a threaded hole is opened at the other end. One end of the slide plate (29) is slidably installed on the limit rod (27), and the other end is slidably installed on the screw rod (28). A limit hole is opened in the center of the slide plate (29), and a guide rod (30) is slidably installed in the limit hole. A slider (31) is fixedly installed at the lower end of the guide rod (30). A damping spring (33) is arranged between the slider (31) and the slide plate (29) and is sleeved on the guide rod (30). Both ends of the hot pressing roller (32) above the conveyor frame (1) are rotatably installed in the slider (31) through bearings.

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