Automatic film-sticking equipment for automobile armrest frames

Abstract

The present invention discloses an automatic film-applying device for an automobile armrest frame, comprising a frame; a film-unloading mechanism disposed on the frame, on which a roll of film is mounted, and which automatically pulls the roll of film out in a horizontal direction, thereby flattening the film on the roll of film; an armrest fixing mechanism disposed on the frame and located at the rear end of the film-unloading mechanism in the conveying direction, and which fixes the automobile armrest frame; a film-applying mechanism disposed on the frame and located above the film-unloading mechanism and the armrest fixing mechanism; and a first drive unit that slidably connects the film-applying mechanism to the frame; wherein the first drive unit controls the film-applying mechanism so that the film-applying mechanism removes the film from the film-unloading mechanism and applies the film to the automobile armrest frame located on the armrest fixing mechanism. The present invention provides an automatic film-applying device through the above-mentioned mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle interior manufacturing, and in particular relates to an automatic film-sticking device for an automobile armrest frame. Background Art

[0002] With the development of advanced automotive technology and the improvement of vehicle quality, people are increasingly demanding a car's appearance. The appearance of a car's interior, in particular, is a crucial factor in evaluating a vehicle. The production of door panel armrest frames requires the addition of mesh to meet automotive safety requirements. This improves the door panel frame's suction and cushioning in the event of a collision, minimizing the impact and injury to the driver and passengers. The armrest frame manufacturing process requires surface foaming to enhance passenger comfort. Because the armrest frame mesh can leak during foaming, hindering the foaming agent's formation, the mesh is sealed with film.

[0003] The existing method usually uses manual film application, which is time-consuming and labor-intensive, and there is a problem of misalignment in the film application position, which affects the quality of the product and causes the car door panel armrest to be scrapped. If the product flows to the vehicle manufacturer, it will cause a product recall and affect the normal production rhythm of the equipment.

[0004] Therefore, it is urgent to develop automatic film-pasting equipment to improve the quality of film-pasting on handrail frames, reduce labor costs and improve production rhythm. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an automatic film-sticking device for an automobile armrest frame.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic film-sticking device for an automobile armrest frame, comprising:

[0007] frame;

[0008] a film unwinding mechanism, which is provided on the frame and has a roll-shaped film installed thereon, and automatically pulls the roll-shaped film out in a horizontal direction so that the film on the roll-shaped film is flattened;

[0009] An armrest fixing mechanism is provided on the frame and is located at the tail end of the film placing mechanism along the conveying direction, and the armrest fixing mechanism fixes the vehicle armrest frame;

[0010] a film sticking mechanism, which is provided on the frame and located above the film placing mechanism and the armrest fixing mechanism; and

[0011] a first driving unit, which enables the film-applying mechanism to be slidably connected to the frame;

[0012] The first driving unit controls the film sticking mechanism so that the film sticking mechanism takes out the film on the film placing mechanism, moves the film and sticks it to the automobile armrest frame on the armrest fixing mechanism.

[0013] Preferably, the film placing mechanism comprises:

[0014] a first fixing plate fixedly connected to the frame;

[0015] a baffle, which is spaced apart and arranged on one side of the first fixing plate;

[0016] a platform plate, disposed between the first fixing plate and the baffle;

[0017] a film unwinding roller, fixed to the first fixed plate;

[0018] a film-drawing roller, disposed between the first fixing plate and the baffle; and

[0019] a pressure roller assembly, which is located above the film-drawing roller and in tangential contact with the film-drawing roller;

[0020] Wherein, a second driving unit is provided on the fixed plate, and the second driving unit drives the film-drawing roller to rotate, so that the roll-shaped film installed on the film-releasing roller is pulled out and flattened by the platform plate.

[0021] Preferably, the film unwinding mechanism further includes a guide roller and at least one tensioning roller arranged between the fixed plate and the baffle, the guide roller being located at the front end of the platform plate along the conveying direction of the roll-shaped film, and the highest point of the guide roller is on the same horizontal plane as the platform plate, and the tensioning roller is located between the conveying path from the film unwinding roller to the film stretching roller.

[0022] Preferably, the armrest fixing mechanism includes:

[0023] a housing, the housing being open at an upper portion;

[0024] A positioning fixture, the positioning fixture is fixedly connected to the housing and includes a clamping device for clamping and loosening the automobile armrest frame;

[0025] a hinge unit, the hinge unit connecting the positioning fixture to the housing,

[0026] Among them, the hinge unit controls the positioning fixture so that the positioning fixture is in a horizontal state when placing in or taking out the car armrest frame, and when the film-applying mechanism applies film to the car armrest frame, the hinge unit controls the positioning fixture to rotate an angle so that the position of the car armrest frame where the film needs to be applied is in a horizontal state.

[0027] Preferably, the hinge unit comprises:

[0028] a swing shaft fixedly connected to the housing;

[0029] a swing arm sleeved on one end of the swing shaft; and

[0030] a third driving unit, which drives the swing arm to move when the positioning fixture rotates, and then the swing arm drives the swing shaft to rotate;

[0031] Wherein, the third driving unit includes:

[0032] a slider connected to the swing arm via a connecting arm;

[0033] A third driver drives the slider to perform linear reciprocating motion, so that the slider drives the swing shaft to rotate through the connecting arm and the swing arm.

[0034] Preferably, the armrest fixing mechanism also includes a flipping device for flipping the shell 180°, which includes: connecting shafts symmetrically arranged at both ends of the shell, bearings sleeved on the connecting shafts, a support seat fixed to the frame for supporting the bearings, and a fourth drive unit; wherein the fourth drive unit is arranged on one side of the shell and is connected to the connecting shaft on the same side.

[0035] Preferably, the film-sticking mechanism includes:

[0036] a second fixing plate slidably disposed on the first driving unit;

[0037] a fifth driving unit, which is disposed on the second fixing plate, wherein a driving end of the fifth driving unit passes through the fixing plate and is connected to the lifting plate; and

[0038] Take and place membrane components,

[0039] The film pick-and-place assembly is connected to the lifting plate, and the fifth driving unit drives the lifting plate and the film pick-and-place assembly to perform lifting motion synchronously.

[0040] Preferably, the membrane removal and placement assembly comprises:

[0041] a suction plate, which is arranged below the lifting plate;

[0042] at least one suction pipe provided on the suction plate, wherein the suction pipe passes through the lifting plate and is connected to the fan; and

[0043] A suction plate mounting base, the suction plate mounting base is fixedly connected to the suction plate, and the suction plate mounting base is connected to the lifting plate through a connecting assembly, so that the lifting plate drives the suction plate mounting base and the suction plate to move synchronously;

[0044] Among them, the connecting assembly includes a first guide column arranged on the suction plate mounting seat and a guide plate located above the lifting plate, the first guide column and the suction tube both pass through the lifting plate and the guide plate, and an elastic member is sleeved on the guide column located between the lifting plate and the guide plate.

[0045] Preferably, a guide sleeve is provided on the second fixed plate, a second guide column is slidably provided in the guide sleeve, and a limiting plate is provided at the upper end of the second guide column, and a lifting plate is fixedly connected to the lower end.

[0046] Preferably, it further comprises an inclined conveying mechanism, which is arranged on one side of the frame, and one end of the inclined conveying mechanism is located below the armrest fixing mechanism.

[0047] The beneficial effects of the present invention are:

[0048] 1. The film unloading mechanism and the armrest fixing mechanism are arranged on the frame along the conveying direction of the roll film. The first drive unit and the film applying mechanism are also arranged on the frame. The first drive unit controls the film applying mechanism, causing it to remove the film from the film unloading mechanism and apply it to the vehicle armrest frame located on the armrest fixing mechanism. This arrangement realizes automatic film applying, eliminating the need for manual film applying.

[0049] 2. The film unwinding mechanism drives the film-drawing roller to rotate through the second drive unit, so that the roll film installed on the film unwinding roller is pulled out and flattened by the platform plate. This realizes the automatic pulling out of the roll film and flattening the film on the platform plate, which is convenient for film removal and ensures that the film is flat.

[0050] 3. The armrest fixing mechanism fixes the car armrest frame through the positioning fixture, and the hinge unit controls the positioning fixture so that the positioning fixture is in a horizontal state when placing or removing the car armrest frame. When the film applying mechanism applies film to the car armrest frame, the hinge unit controls the positioning fixture to rotate a certain angle so that the car armrest frame where the film is to be applied is in a horizontal state, achieving convenient material discharge and fast and smooth film application.

[0051] 4. The armrest fixing mechanism removes the film-covered car armrest frame from the shell through the flip device, realizing automatic material removal and making material removal faster;

[0052] 5. The film-sticking mechanism is provided with a suction plate, which is adapted to the shape of the film. The fifth driving unit drives the suction plate downward and adsorbs the film on the film-releasing mechanism onto the suction plate through vacuum. The suction plate returns to its initial position under the drive of the fifth driving unit, and then moves the film-sticking mechanism to the armrest fixing mechanism under the drive of the first driving unit. The film is then attached to the armrest frame of the car under the drive of the fifth driving unit, and is evenly attached to the armrest frame of the car by blowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a structural schematic diagram of the present invention;

[0054] Figure 2 It is a front view schematic diagram of the present invention;

[0055] Figure 3 Schematic diagram of the structure of the film placing mechanism in the present invention;

[0056] Figure 4 Schematic top view of the film placing mechanism in the present invention;

[0057] Figure 5 This is a schematic diagram of the internal main structure of the film placing mechanism of the present invention;

[0058] Figure 6 This is another structural diagram of the film placing mechanism of the present invention;

[0059] Figure 7 Schematic diagram of the structure of the armrest fixing mechanism of the present invention;

[0060] Figure 8 This is a schematic diagram of the internal structure of the armrest fixing mechanism of the present invention;

[0061] Figure 9 Schematic diagram of the structure of the hinge unit of the armrest fixing mechanism in the present invention;

[0062] Figure 10 Schematic top view of the armrest fixing mechanism of the present invention;

[0063] Figure 11 It is a left side schematic diagram of the film sticking mechanism in the present invention;

[0064] Figure 12 It is a schematic main view of the film-sticking mechanism in the present invention. DETAILED DESCRIPTION

[0065] The present invention is further described in detail below with reference to the embodiments so that those skilled in the art can implement the invention with reference to the description.

[0066] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0067] In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like components.

[0068] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the invention belongs. The words "first", "second" and similar terms used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "an" or "the" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0069] In the following description, words such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are defined relative to the structure shown in the drawings. In particular, "height" is equivalent to the dimension from top to bottom, "width" is equivalent to the dimension from left to right, and "depth" is equivalent to the dimension from front to back. They are relative concepts and may therefore change accordingly depending on their different positions and different usage states. Therefore, these or other directions should not be interpreted as restrictive terms.

[0070] Terms referring to attachment, coupling, and the like (eg, "connected" and "attached") refer to structures being fixed or attached to one another, directly or indirectly, through intermediate structures, as well as movable or rigid attachments or relationships, unless expressly stated otherwise.

[0071] Reference Figure 1-12 , an automatic film-sticking device for an automobile armrest frame, comprising:

[0072] Rack 1;

[0073] The film unwinding mechanism 2 is provided on the frame 1 and is provided with a roll film. The film unwinding mechanism 2 automatically pulls the roll film out in a horizontal direction so that the film on the roll film is flattened.

[0074] The armrest fixing mechanism 3 is provided on the frame 1 and is located at the tail end of the film placing mechanism 2 along the conveying direction, and the armrest fixing mechanism 3 fixes the vehicle armrest frame;

[0075] a film laminating mechanism 4, which is disposed on the frame 1 and located above the film placing mechanism 2 and the armrest fixing mechanism 3; and

[0076] a first driving unit 5 , which enables the film-applying mechanism 4 to be slidably connected to the frame 1 ;

[0077] Among them, the first driving unit 5 controls the film pasting mechanism 4, so that the film pasting mechanism 4 takes out the film located on the film placing mechanism 2, and sticks the film to the car armrest frame located on the armrest fixing mechanism 3; the above mechanism realizes automatic film pasting, without the need for manual film pasting, reducing labor costs and improving production efficiency.

[0078] The first driving unit 5 is a linear module, which makes the positioning more accurate.

[0079] Furthermore, the equipment also includes an inclined conveying mechanism 6, which is arranged on one side of the frame 1, and one end of the inclined conveying mechanism 6 is located below the armrest fixing mechanism 3; when the film is pasted on the car armrest frame, the car armrest frame falls onto the inclined conveying mechanism 6, realizing automatic material collection and accelerating the film pasting speed.

[0080] Furthermore, the device also includes a control device, which is located in the electric control box 7 and controls the connection of the above-mentioned film placing mechanism 2, the armrest fixing mechanism 3, the film sticking mechanism 4 and the first driving unit 5.

[0081] Reference Figure 3-6 , the film placing mechanism 2 in the device includes:

[0082] A first fixing plate 21 fixed to the frame 1;

[0083] a baffle 22 , which is spaced apart and disposed on one side of the first fixing plate 21 ;

[0084] a platform plate 23 disposed between the first fixing plate 21 and the baffle plate 22;

[0085] a film unwinding roller 24 fixed to the first fixing plate 21; and

[0086] The film-drawing roller 25 is disposed between the first fixed plate 21 and the baffle 22;

[0087] The first fixed plate 21 is provided with a second drive unit 26, which drives the film drawing roller 25 to rotate, thereby drawing the roll film mounted on the film unwinding roller 24 and flattening it on the platform 23. This mechanism automatically draws the roll film and flattens it on the platform 23, making it easier to remove the film and ensuring a smooth film application.

[0088] Specifically, two connecting plates are further provided on the first fixing plate 21 , and the first fixing plate 21 is fixedly connected to the frame 1 through the connecting plates and fasteners, and the second driving unit 26 is a motor.

[0089] Furthermore, a through hole 231 is provided at the end of the platform plate 23 along the conveying direction, and a sensor is provided under the through hole 231 for detecting whether the film is taken out; and the control device controls the connected sensor, and when the sensor detects that no film is detected, it operates normally; otherwise, if a film is detected, the film has not been taken out, and the control device controls the equipment to stop operating.

[0090] Reference Figure 5 The film-laying mechanism 2 also includes a guide roller 27 arranged between the first fixed plate 21 and the baffle 22. The guide roller is located at the front end of the platform plate 23 along the conveying direction of the roll film, and the highest point of the guide roller 27 is on the same horizontal plane as the platform plate 23; the roll film is smoothly guided to the platform plate 23 by the guide roller 27, ensuring the flatness of the film.

[0091] Furthermore, the film unwinding mechanism 2 further includes at least one tensioning roller 20 provided between the first fixed plate 21 and the baffle 22 , and the tensioning roller 20 is located between the transmission path from the film unwinding roller 24 to the film pulling roller 25 . Figure 5 Three tensioning rollers 20 are provided in the middle for adjusting the tension of the roll-shaped film during the transmission process, so that the movement of the device is stable and reliable.

[0092] Reference Figure 6 The film unwinding mechanism 2 further includes a pressure roller assembly 28 in contact with the film drawing roller 25. The pressure roller assembly 28 is located directly above the film drawing roller 25. The pressure roller assembly 28 is in contact with the film drawing roller 25 and applies a certain pressure to the film drawing roller 25, so that the roll film is attached to the film drawing roller 25 and ensures that the film drawing roller 25 does not slip during the pulling process.

[0093] Furthermore, a hand wheel 29 is provided on the baffle 22, and the hand wheel 29 is connected to the other end of the film drawing roller 25. That is, the film drawing roller 25 can be rotated by the second drive unit 26 as well as by the hand wheel 29. When the roll film has problems such as tilting or wrinkling during the drawing process, the hand wheel 29 can be used to adjust the film, which allows for quick adjustment, safety, and convenience.

[0094] Reference Figure 7-10, the armrest fixing mechanism 3 in the device includes:

[0095] The housing 31 is open at the top;

[0096] A positioning fixture 32 is fixedly connected to the housing 31 and includes a clamping device for clamping and loosening the vehicle armrest frame;

[0097] The hinge unit 33 connects the positioning fixture 32 to the housing 31.

[0098] Among them, the hinge unit 33 controls the positioning fixture 32 so that the positioning fixture 32 is in a horizontal state when placing in or taking out the automobile armrest frame, and when the film-applying mechanism 4 is applying film to the automobile armrest frame, the hinge unit 33 controls the positioning fixture 32 to rotate an angle so that the position of the automobile armrest frame where the film needs to be applied is in a horizontal state; through the above structure, the position of the automobile armrest frame where the film needs to be applied is in a horizontal state, so that the film can be applied quickly and smoothly.

[0099] Furthermore, the positioning fixture 32 includes a positioning mold adapted to the automobile armrest frame and a clamping device connected to the positioning mold. The clamping device is a clamping cylinder that facilitates the fixation of the automobile armrest frame placed on the positioning mold.

[0100] Reference Figure 8-9 , the hinge unit 33 includes:

[0101] The oscillating shaft 331 is fixed to the housing 31 , and the positioning fixture 32 is fixed to the oscillating shaft 331 , so that the positioning fixture 32 moves along with the oscillating shaft 331 ;

[0102] a swing arm 332 mounted on one end of the swing shaft 331; and

[0103] The third driving unit 333 drives the swing arm 332 to move when the positioning fixture 32 rotates, and then the swing arm 332 drives the swing shaft 331 to rotate.

[0104] The third driving unit 333 includes:

[0105] Slider 3331, slider 3331 is connected to swing arm 332 via connecting arm 3333;

[0106] The third actuator 3332 drives the slider 3331 in linear reciprocating motion, causing the slider 3331 to rotate via the connecting arm 3333 and the swing arm 332. As is well known, the film application position of the vehicle armrest frame is tilted. Therefore, when film application is required, the positioning fixture 32 is controlled by the above mechanism to rotate, making the film application position of the vehicle armrest frame horizontal, facilitating and smoothing film application. A pneumatic cylinder can be used for the third actuator 3332.

[0107] Reference Figure 10 The armrest fixing mechanism 3 also includes a flipping device 34 for flipping the housing 31 180°. The flipping device 34 comprises connecting shafts 341 symmetrically disposed at both ends of the housing 31, bearings 342 sleeved on the connecting shafts 341, a support seat 344 fixed to the frame 1 for supporting the bearings 342, and a fourth drive unit 343. The fourth drive unit 343 is disposed on one side of the housing 31 and connected to the connecting shaft 341 on the same side. Through this mechanism, the armrest fixing mechanism 3 flips the film-applied vehicle armrest frame 180° via the flipping device 34. The clamping device releases, allowing the vehicle armrest frame to automatically fall onto the inclined conveyor mechanism 6, achieving automatic and faster material retrieval.

[0108] Reference Figure 11-12 , the film-sticking mechanism 4 in the device includes:

[0109] A second fixing plate 41 slidably mounted on the first driving unit 5;

[0110] a fifth driving unit 42 , which is disposed on the second fixing plate 41 , wherein a driving end of the fifth driving unit 42 passes through the first fixing plate 21 and is connected to the lifting plate 43 ; and

[0111] Take and place membrane assembly 44,

[0112] The membrane pick-up and placement assembly 44 is connected to the lifting plate 43, and the fifth driving unit 42 drives the lifting plate 43 and the membrane pick-up and placement assembly 44 to move up and down synchronously. The fifth driving unit 42 can be a cylinder.

[0113] Furthermore, the membrane assembly 44 is taken out and placed, including:

[0114] A suction plate 441 is provided below the lifting plate 43;

[0115] At least one suction pipe 443 provided on the suction plate 441, and the suction pipe 443 passes through the lifting plate 43 and is connected to the fan; and

[0116] Suction plate mounting seat 442,

[0117] The suction plate mounting base 442 is fixedly connected to the suction plate 441, and the suction plate mounting base 442 is connected to the lifting plate 43 via a connecting assembly, so that the lifting plate 43 drives the suction plate mounting base 442 and the suction plate 441 to move synchronously. The suction plate 441 is adapted to the shape of the film, and multiple suction pipes 443 are evenly arranged on the suction plate 441, so that the suction plate 441 can evenly and smoothly adhere the film to the suction plate 441 under the action of the fan.

[0118] Furthermore, the connecting assembly includes a first guide post 445 mounted on the suction plate mounting base 442 and a guide plate 444 positioned above the lifting plate 43. Both the first guide post 445 and the suction tube 443 extend through the lifting plate 43 and the guide plate 444, and an elastic member 446 is sleeved on the guide post between the lifting plate 43 and the guide plate 444. A stopper is provided at the top of the first guide post 445, ensuring that the suction plate 441 moves synchronously with the lifting plate 43 and that the suction plate 441 remains stable and does not wobble.

[0119] Furthermore, a guide sleeve 45 is provided on the second fixing plate 41 , a second guide post 46 is slidably provided in the guide sleeve 45 , and a limit plate 47 is provided at the upper end of the second guide post 46 , and the lower end is fixedly connected to the lifting plate 43 .

[0120] As is known to all, the car armrest frame includes two left and right arms, so the workstations in the above equipment all include two mirrored workstations, that is, the left and right car armrest frames can be filmed at the same time.

[0121] The working process of the equipment is as follows: the control device is a PLC, and the control device controls the connection of the first drive unit 5, the second drive unit 26, the sensor, the fan, the clamping device, the third drive 3332, the fourth drive unit 343, and the fifth drive unit 42; the roll film is placed on the film-replacing mechanism 2, and the control device controls the second drive unit 26 to rotate, so that the roll film is pulled out and then flattened on the platform plate 23; the control device controls the movement of the first drive unit 5, drives the film-pasting mechanism 4 to move to the corresponding position, and then stops moving; the control device controls the movement of the fifth drive unit 42, so that the film-placing assembly descends and contacts the film on the platform plate 23, and then starts the fan, so that the suction plate 441 generates a vacuum to adsorb the film onto the suction plate 441; after controlling the fifth drive unit 42 to return to its initial state, the first drive unit 5 is controlled to move to the corresponding position of the armrest fixing mechanism 3; the fifth drive unit 42 ... Unit 42 descends and makes the film contact with the car armrest frame; the fan is started and the gas is ejected outward through the suction plate 441, so that the film is evenly fixed and then the film is completed on the car armrest frame; the fifth drive unit 42 and the fourth drive unit 343 are started at the same time, the fifth drive unit 42 makes the film assembly return to its initial state, and the fourth drive unit 343 flips the armrest fixing mechanism 3 180°, and controls the clamping device to loosen, so that the car armrest frame with the film completed falls onto the inclined conveying mechanism 6; after completion, the control device controls the first drive unit 5 to move the film mechanism 4 to the film placing mechanism 2, controls the fourth drive unit 343 to flip the armrest fixing mechanism 3 180° to return to its initial state, and controls the third drive 3332 to move, so that the positioning fixture 32 is in a horizontal state, which is convenient for the manipulator to put the car armrest frame in; after putting in, the third drive 3332 is controlled to return to its initial state.

[0122] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to specific details.

Claims

1. An automatic film-sticking device for automobile armrest frames, characterized in that: It includes a frame, a film placing mechanism, an armrest fixing mechanism, a film sticking mechanism and a first driving unit; The film unwinding mechanism is provided on the frame, and a roll film is installed on the film unwinding mechanism, and the roll film is automatically pulled out in a horizontal direction so that the film on the roll film is flattened. The film unwinding mechanism includes a first fixed plate fixed to the frame; a baffle plate spaced apart and arranged on one side of the first fixed plate; a platform plate provided between the first fixed plate and the baffle plate; and a film unwinding roller fixed to the first fixed plate. a film-drawing roller disposed between the first fixed plate and the baffle; and a pressure roller assembly located above the film-drawing roller and in tangential contact with the film-drawing roller; wherein a second drive unit is provided on the fixed plate, and the second drive unit drives the film-drawing roller to rotate, so that the roll-shaped film mounted on the film-unwinding roller is drawn out and flattened by the platform plate; The armrest fixing mechanism is arranged on the frame and is located at the tail end of the film placing mechanism along the conveying direction, and the armrest fixing mechanism fixes the automobile armrest frame. The armrest fixing mechanism includes a shell, which is open at the top; a positioning fixture, which is fixed in the shell and includes a clamping device for clamping and loosening the automobile armrest frame; a hinge unit, which connects the positioning fixture to the shell, wherein the hinge unit controls the positioning fixture so that the positioning fixture is in a water-proof state when putting in or taking out the automobile armrest frame. The armrest fixing mechanism is in a flat state, and when the film applying mechanism applies the film to the armrest frame of the automobile, the hinge unit controls the positioning fixture to rotate by an angle so that the position of the armrest frame of the automobile to be applied with the film is in a horizontal state; the armrest fixing mechanism also includes a flipping device for flipping the shell 180 degrees, which includes: connecting shafts symmetrically arranged at both ends of the shell, bearings sleeved on the connecting shafts, a support seat fixed to the frame for supporting the bearings, and a fourth driving unit; wherein the fourth driving unit is arranged on one side of the shell and is connected to the connecting shaft on the same side; The film-sticking mechanism is arranged on the frame and located above the film-laying mechanism and the armrest fixing mechanism, and the film-sticking mechanism includes a second fixing plate slidably arranged on the first driving unit; a fifth driving unit is arranged on the second fixing plate, and the driving end of the fifth driving unit passes through the fixing plate and is connected to the lifting plate; and a film-pick-and-place assembly, wherein the film-pick-and-place assembly is connected to the lifting plate, and the fifth driving unit drives the lifting plate and the film-pick-and-place assembly to perform synchronous lifting and lowering movements; and The first driving unit enables the film-applying mechanism to be slidably connected to the frame; The first driving unit controls the film sticking mechanism so that the film sticking mechanism takes out the film on the film placing mechanism, moves the film and sticks it to the automobile armrest frame on the armrest fixing mechanism.

2. The automatic film-sticking device for automobile armrest frames according to claim 1, characterized in that: The film unwinding mechanism also includes a guide roller and at least one tensioning roller arranged between the fixed plate and the baffle. The guide roller is located at the front end of the platform plate along the conveying direction of the roll-shaped film, and the highest point of the guide roller is on the same horizontal plane as the platform plate. The tensioning roller is located between the conveying path from the film unwinding roller to the film stretching roller.

3. The automatic film-sticking device for automobile armrest frames according to claim 2, characterized in that: The hinge unit comprises: a swing shaft fixedly connected to the housing; a swing arm sleeved on one end of the swing shaft; and a third driving unit, which drives the swing arm to move when the positioning fixture rotates, and then the swing arm drives the swing shaft to rotate; Wherein, the third driving unit includes: a slider connected to the swing arm via a connecting arm; A third driver drives the slider to perform linear reciprocating motion, so that the slider drives the swing shaft to rotate through the connecting arm and the swing arm.

4. The automatic film-sticking device for automobile armrest frames according to claim 3, characterized in that: The membrane removal assembly comprises: a suction plate, which is arranged below the lifting plate; at least one suction pipe provided on the suction plate, wherein the suction pipe passes through the lifting plate and is connected to the fan; and A suction plate mounting base, the suction plate mounting base is fixedly connected to the suction plate, and the suction plate mounting base is connected to the lifting plate through a connecting assembly, so that the lifting plate drives the suction plate mounting base and the suction plate to move synchronously; Among them, the connecting assembly includes a first guide column arranged on the suction plate mounting seat and a guide plate located above the lifting plate, the first guide column and the suction tube both pass through the lifting plate and the guide plate, and an elastic member is sleeved on the guide column located between the lifting plate and the guide plate.

5. The automatic film-sticking device for automobile armrest frames according to claim 4, characterized in that: The second fixed plate is provided with a guide sleeve, a second guide column is slidably provided in the guide sleeve, and a limiting plate is provided at the upper end of the second guide column, and a lifting plate is fixedly connected to the lower end.

6. The automatic film-sticking device for automobile armrest frames according to claim 1, characterized in that: It also includes an inclined conveying mechanism, which is arranged on one side of the frame, and one end of the inclined conveying mechanism is located below the armrest fixing mechanism.

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