Protective film pressing device capable of eliminating bubbles and use method of protective film pressing device

Abstract

The invention discloses a protective film pressing device capable of eliminating bubbles and a using method thereof, and relates to the field of protective film pressing, the protective film pressing device comprises a preset butt joint base, a transverse bearing platform and an upper supporting assembly, the upper end of the preset butt joint base is in butt joint with the transverse bearing platform, and the upper end of the transverse bearing platform is fixedly connected with the upper supporting assembly; a reserved driving hydraulic rod is installed at the upper end of the upper supporting assembly in a butt joint mode. According to the protective film pressing device capable of eliminating the bubbles and the using method thereof, the electric heating pressing assembly is driven by the reserved driving hydraulic rod to move downwards, and the electric heating pressing assembly making contact with the surface of an object to be pressed stably conducts hot pressing treatment; and meanwhile, the electric heating pressing assembly in a downward moving state drives a transverse auxiliary supporting piece to be transversely unfolded through a first butt joint steel wire rope, the subsequent secondary constant pressure work treatment is met, in the process of guaranteeing the pressing speed, multiple pressing is conducted in the protective film attaching process, and therefore attaching gaps are avoided, and the phenomena of bubbles and the like are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of protective film lamination, and in particular to a protective film lamination device capable of eliminating bubbles and a use method thereof. Background Art

[0002] The protective film is a relatively common protective device. For example, when the plate-like objects are pasted with the film on the surface, they need to be fitted with the corresponding protective film pressing device for laminating. For example, a panel surface protective film pressing device disclosed in the patent with publication number CN218967349U includes a processing table, a support plate is fixedly connected to the middle of the upper end of the processing table, a support frame is fixedly connected to the rear of the upper end of the processing table, a hydraulic cylinder is fixedly connected to the lower end of the support frame, an adjusting tube is fixedly connected to the middle of the lower end of the connecting plate, an adjusting rod is slidably connected to the lower end of the adjusting rod, a pressing plate is fixedly connected to the lower end of the adjusting rod, and multiple auxiliary frames are fixedly connected to both sides of the connecting plate. By setting an adjustable and retractable pressing plate structure, when the pressing plate is used to press the panel and the protective film, the auxiliary pressing plate on the side will not be affected. Continued descent, so that the auxiliary pressing plate can press down the excess protective film, so that the protective film is bent and fits the side of the panel, so that the panel pressing process can be completed synchronously; Another example is a laminating device for a capacitive screen protective film in a patent with publication number CN114476196B. The present invention provides a laminating device for a capacitive screen protective film that improves the qualified rate of film pasting. A laminating device for a capacitive screen protective film includes a material discharging table, an outer frame, a slide rail, a first slide bar, a first roller, a scraper, an elastic member and a laminating mechanism, etc. The material discharging table is provided with slide rails symmetrically on both sides of the front and rear, an outer frame is provided between the upper parts of the slide rails, a first slide bar is provided on both sides of the upper part of the material discharging table, a first roller is slidably provided on the first slide bar, a scraper for scraping the protective film is slidably provided on the first roller, and an elastic member is connected between the upper parts of the scrapers and the first rollers on the same side; For example, a protective film pressing device disclosed in the patent with publication number CN221540646U relates to the field of protective film pressing technology. The protective film pressing device comprises a pressing device body, the top of which is fixedly connected to a load-bearing frame, and a dust removal mechanism and a defoaming mechanism are arranged on the top of the pressing device body. The protective film pressing device, by arranging a defoaming roller, when it is necessary to defoam the pressed protective film, firstly, the protective film and the base film are pressed on the transmission belt, and small bubbles may exist between the two. The protective film and the base film passing under the defoaming roller are squeezed to squeeze out the air between them, so as to facilitate the defoaming of the pressed protective film; Most of the above-mentioned existing technologies have improved their overall structure, and the existing protective film pressing devices are mostly in a vertical pressing state during operation. Since the pressing rate is too fast, bubbles and the like are easily generated during the protective film lamination process, resulting in a certain lamination gap, which makes it impossible to guarantee the service life in the later stage, and thus has certain limitations in use. Summary of the invention

[0003] The purpose of the present invention is to provide a protective film laminating device and a method of using the same that can eliminate bubbles, so as to solve the problem that the working state proposed in the above background technology is mostly vertical laminating. However, due to the excessively fast laminating rate, bubbles and the like are easily generated during the laminating process of the protective film, resulting in a certain laminating gap, which in turn leads to the problem that the service life cannot be guaranteed in the later stage.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a protective film pressing device capable of eliminating bubbles and a method of using the same, comprising a preset docking base, a transverse bearing platform and an upper support assembly, wherein the upper end of the preset docking base is docked with the transverse bearing platform, and the upper end of the transverse bearing platform is fixedly connected with the upper support assembly; A reserved driving hydraulic rod is docked on the upper end of the upper support assembly, and an electric heating pressing assembly is nested and docked at the lower end of the output end of the reserved driving hydraulic rod, and a first return spring is fixedly connected between the electric heating pressing assembly and the output end of the reserved driving hydraulic rod, a reserved vertical cavity is opened on the inner side of the electric heating pressing assembly, a secondary pressing structure is arranged between the transverse bearing platform and the electric heating pressing assembly, and the contact pressing state is further guaranteed by the secondary pressing structure; an auxiliary movable structure is arranged on the outer side of the electric heating pressing assembly, and the surface of the contacting pressed object is debubbled by the auxiliary movable structure.

[0005] Furthermore, the secondary pressing structure is provided with a transverse auxiliary support member, and the transverse auxiliary support member is nested and docked on the inner side of the middle end of the transverse bearing platform, the lower end of the transverse auxiliary support member is docked with a first docking steel wire rope, and the first docking steel wire rope passes through the lower end of the transverse bearing platform, and the end of the first docking steel wire rope is docked with the upper end of the electric heating pressing assembly, and the transverse auxiliary support member is connected to the inner side of the transverse bearing platform through a spring.

[0006] Furthermore, the upper end of the electric heating pressing assembly is fixedly connected with a accommodating guide member, and a resisting support movable member is nested and installed on the inner side of the accommodating guide member, and the upper end of the resisting support movable member is fixedly connected with an elastic docking support resisting member; the lower end of the resisting support movable member is docked with a second docking steel wire rope, and the second docking steel wire rope passes through the inner side of the electric heating pressing assembly, and the end of the second docking steel wire rope is docked with the outer side of the lower end of the output end of the reserved driving hydraulic rod.

[0007] Furthermore, the reserved driving hydraulic rod drives the electric heating pressing assembly to move downward along the inner side of the transverse bearing platform, and after the electric heating pressing assembly moves to the preset docking base surface limit, the output end of the reserved driving hydraulic rod stretches the first return spring to continuously move downward along the inner side of the reserved vertical cavity, and the lower end of the reserved driving hydraulic rod drives the resisting support movable part to move upward along the inner side of the accommodating guide part through the second docking steel wire rope.

[0008] Furthermore, the abutting support movable member forms a nested docking along the inner side of the accommodating guide member, and an elastic docking support abutment member is symmetrically arranged on the outer side of the abutting support movable member, and the elastic docking support abutment member abuts against and supports the bottom of the outwardly moved lateral auxiliary support member.

[0009] Furthermore, the auxiliary movable structure is provided with a guide movable block, and the guide movable block is nested and docked on the outside of the accommodating guide member, and the lower end of the guide movable block is docked with a third docking steel wire rope, and the third docking steel wire rope passes through the interior of the accommodating guide member, and the end of the third docking steel wire rope is docked with the lower end of the abutting supporting movable member.

[0010] Furthermore, the outer side of the guide movable block is rotatably connected to an oblique support pressing piece, and the lower end of the oblique support pressing piece abuts against the surface of the electric heating pressing assembly, and a second return spring is fixedly connected between the oblique support pressing piece and the accommodating guide piece.

[0011] Furthermore, the resisting support movable part forms a traction structure with the guide movable block through the third docking wire rope, and during the downward movement of the guide movable block, the second return spring is stretched by the oblique support pressing part to form a forward rolling structure.

[0012] A protective film laminating device capable of eliminating bubbles is disclosed, and a method for using the protective film laminating device is also disclosed. The specific method steps are as follows: S1: Initial hot pressing, start the reserved driving hydraulic rod to drive the electric heating pressing assembly to move downward, the electric heating pressing assembly that contacts the surface of the pressed object will be stably hot pressed, and at the same time, the electric heating pressing assembly in the downward state will drive the horizontal auxiliary support member to expand horizontally through the first docking wire rope to meet the subsequent secondary constant pressure work process; S2: Secondary pressing, the output end of the reserved driving hydraulic rod stretches the first return spring to continuously move downward along the inner side of the reserved vertical cavity, and drives the resistance support movable part to move upward through the second docking wire rope, and the elastic docking support resistance part at its upper end contacts the bottom of the outward-moving lateral auxiliary support part to form a secondary resistance support pressing force on the surface of the electric heating pressing assembly in the fitted state; S3: Rolling to remove bubbles. The supporting movable part drives the guiding movable block to move downward along the outer side of the accommodating guiding part through the third docking steel wire rope, so that the guiding movable block cooperates with the oblique supporting pressing part to stretch the second return spring to form a forward rolling structure during the downward movement, and then the surface of the electric heating pressing component in the pressed state is subjected to an extended debubbling rolling treatment outward.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The protective film pressing device capable of eliminating bubbles and the use method thereof are provided with a secondary pressing structure, and the contact pressing state is further guaranteed by the secondary pressing structure. As the reserved driving hydraulic rod drives the electric heating pressing assembly to move downward, the electric heating pressing assembly in contact with the surface of the pressed object will be stably hot-pressed. At the same time, the electric heating pressing assembly in the downward state will then drive the lateral auxiliary support member to expand horizontally through the first docking steel wire rope to meet the subsequent secondary constant pressure work processing. During the process of ensuring the pressing rate, the protective film is pressed multiple times during the laminating process, so there will be no laminating gap, no bubbles, etc., and the later service life can be guaranteed. Furthermore, after the electric heating pressing assembly moves to the preset limit position on the surface of the docking base, the output end of the reserved driving hydraulic rod will stretch the first return spring to continuously move downward along the inner side of the reserved vertical cavity, and then drive the resistance support movable part to move upward along the inner side of the accommodating guide part through the second docking wire rope docked at its lower end, and the elastic docking support resistance part at its upper end contacts the bottom of the outwardly moved lateral auxiliary support part, thereby forming a secondary resistance support pressing force on the surface of the electric heating pressing assembly in the fitted state, thereby further ensuring the pressing state of its lower end; Furthermore, an auxiliary movable structure is provided, through which the surface of the contacting pressed member is debubbled, and when the resisting supporting movable member is forced to move upward along the inside of the accommodating guide member, it will drive the guiding movable block to move downward along the outside of the accommodating guide member through the third docking steel wire rope, so that during the downward movement of the guiding movable block, the second return spring is stretched by the oblique supporting pressing member to form a forward rolling structure, and then the surface of the electric heating pressing assembly in the pressed state is subjected to an extended debubbling rolling treatment outward, so as to further prevent the formation of a fitting gap or residual bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a half-cut three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 For the present invention Figure 1 A schematic diagram of the partially enlarged structure; Figure 4 It is a schematic diagram of a half-section three-dimensional structure of the transverse load-bearing platform of the present invention; Figure 5 A schematic diagram of the three-dimensional structure of a driving hydraulic rod is reserved for the present invention; Figure 6 A schematic diagram of a three-dimensional structure of a vertical cavity reserved for the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the first return spring of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the interfering supporting movable part of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the transverse auxiliary support member of the present invention.

[0015] In the figure: 1. Preset docking base; 2. Horizontal bearing platform; 3. Upper support assembly; 4. First return spring; 5. Electric heating pressing assembly; 6. Reserved vertical cavity; 7. Horizontal auxiliary support member; 8. First docking wire rope; 9. Second docking wire rope; 10. Accommodating guide member; 11. Resistance support movable member; 12. Third docking wire rope; 13. Guide movable block; 14. Oblique support pressing member; 15. Second return spring; 16. Reserved driving hydraulic rod; 17. Elastic docking support resistance member. DETAILED DESCRIPTION

[0016] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0017] Example 1: Please refer to Figure 1-9 The present invention provides the following technical solutions: a protective film pressing device capable of eliminating bubbles and a method of using the same, comprising a preset docking base 1, a lateral bearing platform 2, an upper support assembly 3, a first return spring 4, an electric heating pressing assembly 5, a reserved vertical cavity 6, a lateral auxiliary support member 7, a first docking steel wire rope 8, a second docking steel wire rope 9, an accommodating guide member 10, a resisting support movable member 11, a third docking steel wire rope 12, a guide movable block 13, an oblique support pressing member 14, a second return spring 15, a reserved driving hydraulic rod 16 and an elastic docking support resisting member 17; The upper end of the preset docking base 1 is docked with a transverse bearing platform 2, and the upper end of the transverse bearing platform 2 is fixedly connected with an upper support assembly 3; the upper end of the upper support assembly 3 is docked with a reserved driving hydraulic rod 16, and the lower end of the output end of the reserved driving hydraulic rod 16 is nested and docked with an electric heating pressing assembly 5, and a first return spring 4 is fixedly connected between the electric heating pressing assembly 5 and the output end of the reserved driving hydraulic rod 16, and a reserved vertical cavity 6 is opened on the inner side of the electric heating pressing assembly 5, and a secondary pressing structure is arranged between the transverse bearing platform 2 and the electric heating pressing assembly 5, and the contact pressing state is further guaranteed by the secondary pressing structure; The secondary pressing structure is provided with a transverse auxiliary support member 7, and the transverse auxiliary support member 7 is nested and docked on the inner side of the middle end of the transverse bearing platform 2, and the lower end of the transverse auxiliary support member 7 is docked with a first docking wire rope 8, and the first docking wire rope 8 runs through the lower end of the transverse bearing platform 2, and the end of the first docking wire rope 8 is docked with the upper end of the electric heating pressing assembly 5, and the transverse auxiliary support member 7 is connected to the inner side of the transverse bearing platform 2 through a spring. The upper end of the electric heating pressing assembly 5 is fixedly connected with a receiving guide member 10, and the inner side of the receiving guide member 10 is nested and installed with a resisting support movable member 11, and the upper end of the resisting support movable member 11 is fixedly connected with an elastic docking support resisting member 17; the lower end of the resisting support movable member 11 is docked with a second docking wire rope 9, and the second docking wire rope 9 runs through the inner side of the electric heating pressing assembly 5, and the end of the second docking wire rope 9 is docked with the outer side of the lower end of the output end of the reserved driving hydraulic rod 16. The reserved driving hydraulic rod 16 drives the electric heating pressing assembly 5 to move downward along the inner side of the horizontal bearing platform 2, and after the electric heating pressing assembly 5 moves to the preset surface limit of the docking base 1, the output end of the reserved driving hydraulic rod 16 stretches the first return spring 4 to continuously move downward along the inner side of the reserved vertical cavity 6, and the lower end of the reserved driving hydraulic rod 16 drives the resistance support movable part 11 to move upward along the inner side of the accommodating guide part 10 through the second docking wire rope 9.

[0018] The supporting movable member 11 is nested and docked along the inner side of the accommodating guide member 10 , and an elastic docking supporting member 17 is symmetrically arranged on the outer side of the supporting movable member 11 , and the elastic docking supporting member 17 is in contact and support with the bottom of the outwardly moved lateral auxiliary supporting member 7 . As the reserved driving hydraulic rod 16 drives the electric heating pressing assembly 5 to move downward, the electric heating pressing assembly 5 that contacts the surface of the pressed object will be stably hot-pressed. At the same time, the electric heating pressing assembly 5 in the downward state will then drive the lateral auxiliary support member 7 to expand horizontally through the first docking wire rope 8 to meet the subsequent secondary constant pressure work processing. During the pressing rate guarantee process, the protective film bonding process is pressed multiple times, so there will be no bonding gap, no bubbles and the like. After the electric heating pressing assembly 5 moves to the preset docking base 1 surface limit, the output end of the reserved driving hydraulic rod 16 will stretch the first return spring 4 and continue to move downward along the inner side of the reserved vertical cavity 6, and then drive the resistance support movable member 11 to move upward along the inner side of the accommodating guide member 10 through the second docking wire rope 9 docked at its lower end, and through the elastic docking support resistance member 17 at its upper end, it will resist and support the bottom of the outward-moving lateral auxiliary support member 7, thereby forming a secondary resistance support pressing force on the surface of the electric heating pressing assembly 5 in the bonding state.

[0019] Embodiment 2: Based on Embodiment 1, an auxiliary activity structure is also disclosed, and its specific structure is as follows: An auxiliary movable structure is arranged on the outer side of the electric heating pressing assembly 5, and the surface of the pressed object in contact is de-bubbled by the auxiliary movable structure.

[0020] The auxiliary movable structure is provided with a guide movable block 13, and the guide movable block 13 is nested and docked on the outside of the accommodating guide member 10, and the lower end of the guide movable block 13 is docked with a third docking wire rope 12, and the third docking wire rope 12 runs through the inside of the accommodating guide member 10, and the end of the third docking wire rope 12 is docked with the lower end of the supporting movable member 11. The outer side of the guide movable block 13 is rotatably connected with an oblique support pressing member 14, and the lower end of the oblique support pressing member 14 is in contact with the surface of the electric heating pressing assembly 5, and a second return spring 15 is fixedly connected between the oblique support pressing member 14 and the accommodating guide member 10.

[0021] The resisting support movable part 11 forms a traction structure with the guiding movable block 13 through the third docking steel wire rope 12, and in the process of the guiding movable block 13 moving downward, the second return spring 15 is stretched by the oblique supporting pressing part 14 to form a forward rolling structure; the surface of the contacted pressed object is debubbled through the auxiliary movable structure, and in the process of the resisting support movable part 11 being forced to move upward along the inside of the accommodating guide part 10, it will drive the guiding movable block 13 to move downward along the outside of the accommodating guide part 10 through the third docking steel wire rope 12, so that in the process of the guiding movable block 13 moving downward, the second return spring 15 is stretched by the oblique supporting pressing part 14 to form a forward rolling structure, and then the surface of the electric heating pressing component 5 in the pressed state is subjected to an extended debubbling rolling treatment outward, so as to further prevent the occurrence of a fitting gap or residual bubbles.

[0022] Embodiment 2: Based on Embodiments 1 and 2, a method for using the protective film laminating device is also disclosed. The specific method steps are as follows: S1: Preliminary hot pressing, start the reserved driving hydraulic rod 16 to drive the electric heating pressing assembly 5 to move downward, and the electric heating pressing assembly 5 that contacts the surface of the pressed object will be stably hot pressed. At the same time, the electric heating pressing assembly 5 in the downward state will drive the horizontal auxiliary support member 7 to expand horizontally through the first docking wire rope 8 to meet the subsequent secondary constant pressure work processing; S2: Secondary pressing, the output end of the reserved driving hydraulic rod 16 will stretch the first return spring 4 and continue to move downward along the inner side of the reserved vertical cavity 6, and drive the resisting support movable member 11 to move upward through the second docking wire rope 9, The elastic docking support abutment 17 at its upper end abuts against the bottom of the outwardly moved lateral auxiliary support member 7 to form a secondary abutment support pressing force on the surface of the electric heating pressing component 5 in the fitted state; S3: rolling to remove bubbles, the abutment support movable member 11 drives the guide movable block 13 to move downward along the outer side of the accommodating guide member 10 through the third docking steel wire rope 12, so that the guide movable block 13 moves downward in cooperation with the oblique support pressing member 14 to stretch the second return spring 15 to form a forward rolling structure, and then the surface of the electric heating pressing component 5 in the pressed state is subjected to an extended de-bubble rolling treatment outward.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective film pressing device capable of eliminating bubbles, comprising a preset docking base (1), a transverse bearing platform (2) and an upper support assembly (3), wherein the upper end of the preset docking base (1) is docked with the transverse bearing platform (2), and the upper end of the transverse bearing platform (2) is fixedly connected with the upper support assembly (3); Features: The upper end of the upper support assembly (3) is docked with a reserved driving hydraulic rod (16), and the lower end of the output end of the reserved driving hydraulic rod (16) is nested with an electric heating pressing assembly (5), and a first return spring (4) is fixedly connected between the electric heating pressing assembly (5) and the output end of the reserved driving hydraulic rod (16), and a reserved vertical cavity (6) is provided on the inner side of the electric heating pressing assembly (5), and a secondary pressing structure is provided between the transverse bearing platform (2) and the electric heating pressing assembly (5), and the contact pressing state is further guaranteed by the secondary pressing structure; An auxiliary movable structure is arranged on the outer side of the electric heating pressing assembly (5), and a degassing treatment is performed on the surface of the pressed object in contact with the auxiliary movable structure.

2. A protective film laminating device capable of eliminating bubbles according to claim 1, characterized in that: The secondary pressing structure is provided with a transverse auxiliary support member (7), and the transverse auxiliary support member (7) is nested and docked on the inner side of the middle end of the transverse bearing platform (2), and the lower end of the transverse auxiliary support member (7) is docked with a first docking steel wire rope (8), and the first docking steel wire rope (8) passes through the lower end of the transverse bearing platform (2), and the end of the first docking steel wire rope (8) is docked with the upper end of the electric heating pressing assembly (5), and the transverse auxiliary support member (7) is connected to the inner side of the transverse bearing platform (2) by a spring.

3. A protective film laminating device capable of eliminating bubbles according to claim 2, characterized in that: The upper end of the electric heating pressing assembly (5) is fixedly connected to a receiving guide member (10), and a resisting support movable member (11) is nested and installed inside the receiving guide member (10), and the upper end of the resisting support movable member (11) is fixedly connected to an elastic docking support resisting member (17); The lower end of the resisting support movable member (11) is butt-jointed with a second butt-jointed steel wire rope (9), and the second butt-jointed steel wire rope (9) passes through the inner side of the electric heating pressing assembly (5), and the end of the second butt-jointed steel wire rope (9) is butt-jointed with the outer side of the lower end of the output end of the reserved driving hydraulic rod (16).

4. A protective film laminating device capable of eliminating bubbles according to claim 3, characterized in that: The reserved driving hydraulic rod (16) drives the electric heating pressing assembly (5) to move downward along the inner side of the transverse bearing platform (2), and after the electric heating pressing assembly (5) moves to the preset limit position on the surface of the docking base (1), the output end of the reserved driving hydraulic rod (16) stretches the first return spring (4) to continuously move downward along the inner side of the reserved vertical cavity (6), and the lower end of the reserved driving hydraulic rod (16) drives the resisting support movable member (11) to move upward along the inner side of the accommodating guide member (10) through the second docking steel wire rope (9).

5. A protective film laminating device capable of eliminating bubbles according to claim 4, characterized in that: The abutting support movable member (11) forms a nested docking along the inner side of the accommodating guide member (10), and an elastic docking support abutting member (17) is symmetrically arranged on the outer side of the abutting support movable member (11), and the elastic docking support abutting member (17) abuts against and supports the bottom of the outwardly moved lateral auxiliary support member (7).

6. A protective film laminating device capable of eliminating bubbles according to claim 3, characterized in that: The auxiliary movable structure is provided with a guide movable block (13), and the guide movable block (13) is nested and docked on the outside of the accommodating guide member (10), and the lower end of the guide movable block (13) is docked with a third docking steel wire rope (12), and the third docking steel wire rope (12) passes through the interior of the accommodating guide member (10), and the end of the third docking steel wire rope (12) is docked with the lower end of the abutting supporting movable member (11).

7. A protective film laminating device capable of eliminating bubbles according to claim 6, characterized in that: The outer side of the guide movable block (13) is rotatably connected to an oblique support pressing piece (14), and the lower end of the oblique support pressing piece (14) abuts against the surface of the electric heating pressing assembly (5), and a second return spring (15) is fixedly connected between the oblique support pressing piece (14) and the accommodating guide piece (10).

8. A protective film laminating device capable of eliminating bubbles according to claim 7, characterized in that: The abutting support movable member (11) forms a traction structure with the guide movable block (13) via the third butting steel wire rope (12), and the guide movable block (13) cooperates with the oblique support pressing member (14) to stretch the second return spring (15) to form a forward rolling structure during the downward movement of the guide movable block (13).

9. A protective film laminating device capable of eliminating bubbles according to claim 8, characterized in that: Also disclosed is a method for using the protective film laminating device, and the specific method steps are as follows: S1: Preliminary hot pressing The reserved driving hydraulic rod (16) is started to drive the electric heating pressing assembly (5) to move downward, and the electric heating pressing assembly (5) in contact with the surface of the pressed object will be stably hot-pressed. At the same time, the electric heating pressing assembly (5) in the downward moving state will then drive the lateral auxiliary support member (7) to expand horizontally through the first docking steel wire rope (8), so as to meet the subsequent secondary constant pressure work processing; S2: Secondary pressing The output end of the reserved driving hydraulic rod (16) stretches the first return spring (4) to continuously move downward along the inner side of the reserved vertical cavity (6), and drives the resisting support movable member (11) to move upward through the second docking steel wire rope (9), and the elastic docking support resisting member (17) at its upper end resists and supports the bottom of the outwardly moved lateral auxiliary support member (7), thereby forming a secondary resisting support pressing force on the surface of the electric heating pressing component (5) in the fitted state; S3: Rolling to remove bubbles The abutting support movable member (11) drives the guide movable block (13) to move downward along the outer side of the accommodating guide member (10) via the third docking steel wire rope (12), so that during the downward movement of the guide movable block (13), the second return spring (15) is stretched in cooperation with the oblique support pressing member (14) to form a forward rolling structure, thereby performing an extended de-bubble rolling treatment on the surface of the electrically heated pressing assembly (5) in the pressed state.

Images