Gluing device

Abstract

The utility model belongs to the technical field of protective film gluing, and particularly relates to a gluing device which comprises a supporting seat, a gluing roller is rotatably mounted on the rear side of the upper end of the supporting seat, a control table is fixedly mounted on the rear side of the left end of the supporting seat, and a fixing plate is fixedly mounted above the front side of the left end of the supporting seat. A stepping motor is fixedly installed on the left side of the fixing plate, a coupler is arranged on an output shaft of the stepping motor, and the output shaft of the stepping motor is fixedly connected with a rotating rod through the coupler. According to the glue spreading device, a worker drives the supporting seat to move to a position convenient to operate through the universal wheels, then a protective film is placed on the circumferential surface of the glue spreading roller, the stepping motor is started to drive the rotating cylinder to rotate, and then the protective film is spread with glue through the bristles in the rotating process of the rotating cylinder; when protective films of different sizes need to be glued, the connecting cylinder is pulled outwards, and the connecting cylinder slides along the sliding groove through the guide block.

Description

Technical Field

[0001] This utility model relates to the field of protective film coating technology, and specifically to a coating device. Background Technology

[0002] Protective film is a thin, soft, transparent sheet made of plastic, adhesives, rubber, or other materials. According to its use, it can be divided into digital product protective films, automotive protective films, household protective films, food preservation protective films, etc. Because single-layer films have relatively limited performance, a large number of composite protective films have been designed to address this issue. Composite protective films generally consist of a substrate and a face material bonded together. During processing, an adhesive is coated onto the substrate, and the face material is adhered to the substrate through the adhesive's bonding strength, thus allowing the protective film to combine the advantages of both the substrate and the face material.

[0003] Current adhesive coating devices for protective film production apply adhesive to the surface of the protective film using an adhesive roller. The length of the adhesive roller needs to be greater than the width of the protective film to ensure that the adhesive is completely applied to the surface of the protective film. However, the greater the difference between the length of the adhesive roller and the width of the protective film, the greater the waste of adhesive. The length of the adhesive roller is determined at the beginning of the design. Existing adhesive coating devices are difficult to effectively control the degree of adhesive loss and have room for improvement. Therefore, this utility model proposes an adhesive coating device. Utility Model Content

[0004] The main objective of this disclosure is to provide an adhesive application apparatus to effectively solve the problems raised by the inventors in the aforementioned background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A glue-applying device includes a support base, a glue-applying roller rotatably mounted on the upper rear side of the support base, a control console fixedly mounted on the left rear side of the support base, a fixing plate fixedly mounted on the upper front side of the left side of the support base, a stepper motor fixedly mounted on the left side of the fixing plate, a coupling provided on the output shaft of the stepper motor, a rotating rod fixedly connected to the output shaft of the stepper motor via the coupling, a rotating cylinder fixedly mounted on the circumferential surface of the rotating rod, mounting grooves formed inside the left and right ends of the rotating cylinder, a connecting cylinder movably mounted in the mounting grooves, a movable groove formed inside the outer side of the connecting cylinder, a connecting plate movably mounted in the movable groove, brush bristles evenly fixedly mounted on the outward side of the connecting plate and the circumferential surface of the rotating cylinder, springs symmetrically fixedly mounted on the inward side of the connecting plate, the end of the spring away from the connecting plate fixedly mounted on the inner wall of the connecting cylinder, and a glue-applying box fixedly mounted on the front side of the upper surface of the support base, the glue-applying box being located directly below the rotating cylinder.

[0007] Preferably, casters are evenly fixedly installed at the four corners of the bottom of the support base; the casters can be used to move the support base more conveniently, thereby moving the support base to a position that is easy to operate and improving work efficiency.

[0008] Preferably, guide blocks are symmetrically fixedly installed on the left and right sides of the inner sidewall of the rotating cylinder, and sliding grooves are symmetrically opened on the middle circumferential surface of the connecting cylinder. The guide blocks are movably installed in the sliding grooves. During the outward pulling of the connecting cylinder, the connecting cylinder can slide along the sliding grooves through the guide blocks, thereby allowing the connecting cylinder to move more stably in the rotating cylinder, so as to stably adjust the length between the rotating cylinder and the connecting cylinder.

[0009] Preferably, a fixing ring is fixedly installed at the end of the connecting cylinder away from the rotating cylinder. A fixing bolt is threaded onto the circumferential surface of the fixing ring. Fixing holes are evenly and symmetrically opened on the circumferential surface of the fixing plate, and the fixing bolt is threaded into the fixing holes. This allows the fixing ring to be fixedly installed on the circumferential surface of the rotating rod through the fixing bolt. Then, during the rotation of the rotating rod with the rotating cylinder, it prevents the connecting cylinder from shifting within the rotating cylinder, thereby affecting the length between the connecting cylinder and the rotating cylinder. This would result in excessive glue being applied to the circumferential surface of the brush bristles on the coating roller, thus wasting resources.

[0010] Preferably, the length of the connecting plate is the same as the length of the movable groove; this allows the connecting plate to move more stably in the movable groove as the connecting cylinder moves with it, thereby ensuring the effectiveness of the connecting plate.

[0011] Preferably, the diameter of the rotating drum is smaller than the width of the coating box; this allows the glue dripping from the coating roller and the circumferential surface of the rotating drum to fall steadily into the interior of the coating box during the process of applying glue to the coating roller, preventing the glue from falling onto the outside of the coating box and thus contaminating the surface of the support.

[0012] In view of this, compared with the prior art, the beneficial effects of this utility model are:

[0013] (I) In this application, the operator moves the support base to an easy-to-operate position using casters, then places the protective film on the circumferential surface of the coating roller. The stepper motor is started to rotate the drum, and the brushes apply adhesive to the protective film during the rotation. When different sizes of protective film need to be coated, the connecting cylinder is pulled outward, allowing it to slide along the slide groove via the guide block. This moves the connecting plate inside the movable groove, allowing the brushes on the outer side of the connecting plate to apply adhesive to the coating roller. This adjusts the distribution length of the adhesive on the circumferential surface of the coating roller, enabling the coating roller to apply adhesive to protective films of different lengths. This reduces the difference between the length of the adhesive on the circumferential surface of the coating roller and the length of the protective film, thereby reducing adhesive waste and conserving natural resources.

[0014] (ii) In this application, the fixing ring is fixedly installed on the circumferential surface of the rotating rod by the fixing bolt. Then, when the rotating rod rotates with the rotating drum, it prevents the connecting drum from shifting in the rotating drum, thereby affecting the length between the connecting drum and the rotating drum, resulting in excessive glue applied to the circumferential surface of the brush bristles and causing waste of resources. Attached Figure Description

[0015] Figure 1 The figure shown is a schematic diagram of the overall structure provided by this utility model;

[0016] Figure 2 The figure shown is a schematic cross-sectional view of the present invention.

[0017] Figure 3 The diagram shown is a schematic representation of the internal structure provided by this utility model;

[0018] Figure 4 The image shown is an enlarged schematic diagram of part A provided by this utility model.

[0019] Icons: 1. Support base; 2. Caster wheel; 3. Glue roller; 4. Control console; 5. Stepper motor; 6. Fixing plate; 7. Rotating rod; 8. Rotating drum; 9. Mounting slot; 10. Connecting cylinder; 11. Guide block; 12. Slide groove; 13. Movable groove; 14. Connecting plate; 15. Brush bristles; 16. Spring; 17. Fixing ring; 18. Fixing bolt; 19. Fixing hole; 20. Glue application box. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 The present invention provides the following embodiments:

[0022] A glue application device includes a support base 1, a glue application roller 3 rotatably mounted on the upper rear side of the support base 1, a control console 4 fixedly mounted on the left rear side of the support base 1, a fixing plate 6 fixedly mounted on the upper left front side of the support base 1, a stepper motor 5 fixedly mounted on the left side of the fixing plate 6, a coupling provided on the output shaft of the stepper motor 5, a rotating rod 7 fixedly connected to the output shaft of the stepper motor 5 through the coupling, a rotating cylinder 8 fixedly mounted on the circumferential surface of the rotating rod 7, and mounting grooves 9 opened inside the left and right ends of the rotating cylinder 8. A connecting cylinder 10 is movably installed in the mounting slot 9. A movable slot 13 is formed inside the outer side of the connecting cylinder 10. A connecting plate 14 is movably installed in the movable slot 13. Brush bristles 15 are evenly fixedly installed on the outward-facing side of the connecting plate 14 and the circumferential surface of the rotating cylinder 8. Springs 16 are symmetrically fixedly installed on the inward-facing side of the connecting plate 14. The end of the spring 16 away from the connecting plate 14 is fixedly installed on the inner wall of the connecting cylinder 10. A glue applicator 20 is fixedly installed on the front side of the upper surface of the support base 1. The glue applicator 20 is located at the rotating cylinder 8. Directly below cylinder 8, the operator places the protective film on the circumferential surface of the coating roller 3. Then, the control panel 4 controls the support base 1 to rotate the coating roller 3 to apply glue to the surface of the protective film. At the same time, the stepper motor 5 is started, which drives the rotating cylinder 8 to rotate via the rotating rod 7. During the rotation of the rotating cylinder 8, the brush 15 evenly spreads the glue in the coating box 20 onto the circumferential surface of the coating roller 3. When it is necessary to apply glue to protective films of different sizes, the connecting cylinder 10 is pulled outward. During the movement of the connecting cylinder 10, the connecting plate 14 inside the movable groove 13 moves, so that the brush 15 on the outer side of the connecting plate 14 applies glue to the coating roller 3. This adjusts the distribution length of the glue on the circumferential surface of the coating roller 3, allowing the coating roller 3 to apply glue to protective films of different lengths, reducing the difference between the length of the glue on the circumferential surface of the coating roller 3 and the length of the protective film, thereby reducing glue waste and conserving natural resources.

[0023] Specifically, casters 2 are evenly fixedly installed at the four corners of the bottom of the support base 1; by evenly fixing casters 2 at the four corners of the bottom of the support base 1, the support base 1 can be moved more conveniently by the casters 2, thereby moving the support base 1 to a position that is easy to operate.

[0024] Specifically, guide blocks 11 are symmetrically fixedly installed on the left and right sides of the inner wall of the rotating drum 8, and sliding grooves 12 are symmetrically opened on the central circumferential surface of the connecting drum 10. The guide blocks 11 are movably installed in the sliding grooves 12. By symmetrically fixing guide blocks 11 on the left and right sides of the inner wall of the rotating drum 8 and then allowing the guide blocks 11 to be movably installed in the sliding grooves 12, the connecting drum 10 can slide along the sliding grooves 12 through the guide blocks 11 during the outward pulling of the connecting drum 10, thereby allowing the connecting drum 10 to move more stably in the rotating drum 8.

[0025] Specifically, a fixing ring 17 is fixedly installed at the end of the connecting cylinder 10 away from the rotating cylinder 8. A fixing bolt 18 is threaded onto the circumferential surface of the fixing ring 17. Fixing holes 19 are evenly and symmetrically opened on the circumferential surface of the fixing plate 6. The fixing bolt 18 is threaded into the fixing hole 19. By fixing the fixing ring 17 at the end of the connecting cylinder 10 away from the rotating cylinder 8 and then threading the fixing bolt 18 into the fixing hole 19, the fixing ring 17 can be fixedly installed on the circumferential surface of the rotating rod 7 through the fixing bolt 18. Then, when the rotating rod 7 rotates with the rotating cylinder 8, it prevents the connecting cylinder 10 from shifting in the rotating cylinder 8, thereby affecting the length between the connecting cylinder 10 and the rotating cylinder 8, and causing excessive glue to be applied to the circumferential surface of the brush bristles 15 and the glue roller 3.

[0026] Specifically, the length of the connecting plate 14 is the same as the length of the movable groove 13. By making the length of the connecting plate 14 the same as the length of the movable groove 13, the connecting plate 14 can move more stably in the movable groove 13 during the movement of the connecting cylinder 10 carrying the connecting plate 14.

[0027] Specifically, the diameter of the rotating drum 8 is smaller than the width of the glue-applying box 20. By making the diameter of the rotating drum 8 smaller than the width of the glue-applying box 20, the glue dripping from the circumferential surface of the glue-applying roller 3 and the rotating drum 8 can be stably deposited into the glue-applying box 20 during the glue-applying process of the rotating drum 8.

[0028] The working principle of this utility model is as follows: The operator uses the casters 2 to move the support base 1 to a convenient operating position. Then, the protective film is placed on the circumferential surface of the coating roller 3. The control console 4 controls the support base 1 to rotate the coating roller 3, applying adhesive to the surface of the protective film. Simultaneously, the stepper motor 5 is started, causing the rotating drum 8 to rotate via the rotating rod 7. During the rotation of the drum 8, the brush bristles 15 evenly spread the adhesive from the coating box 20 onto the circumferential surface of the coating roller 3. When applying adhesive to protective films of different sizes, the connecting cylinder 10 is pulled outwards, allowing it to slide along the groove 12 via the guide block 11, thus ensuring more stable movement of the connecting cylinder 10 within the rotating drum 8. During its movement, the rear connecting cylinder 10 moves the connecting plate 14 inside the movable groove 13, allowing the bristles 15 of the connecting plate 14 to apply glue to the coating roller 3. This adjusts the distribution length of the glue on the circumferential surface of the coating roller 3, enabling the coating roller 3 to apply glue to protective films of different lengths. This reduces the difference between the glue length and the protective film length on the circumferential surface of the coating roller 3. Simultaneously, the fixing ring 17 is fixedly mounted on the circumferential surface of the rotating rod 7 by the fixing bolt 18. Then, as the rotating rod 7 rotates with the rotating cylinder 8, it prevents the connecting cylinder 10 from shifting within the rotating cylinder 8, thus affecting the length between the connecting cylinder 10 and the rotating cylinder 8 and preventing excessive glue application to the circumferential surface of the coating roller 3 by the bristles 15. This reduces glue waste and conserves natural resources.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A glue-applying device, comprising a support base (1), characterized in that: A glue-applying roller (3) is rotatably mounted on the upper rear side of the support base (1). A control console (4) is fixedly mounted on the left rear side of the support base (1). A fixing plate (6) is fixedly mounted on the upper left front side of the support base (1). A stepper motor (5) is fixedly mounted on the left side of the fixing plate (6). A coupling is provided on the output shaft of the stepper motor (5). A rotating rod (7) is fixedly connected to the output shaft of the stepper motor (5) through the coupling. A rotating cylinder (8) is fixedly mounted on the circumferential surface of the rotating rod (7). Mounting grooves (9) are opened inside the left and right ends of the rotating cylinder (8). A movable mounting plate is installed in the mounting groove (9). A connecting cylinder (10) is provided. An movable groove (13) is provided inside the outer side of the connecting cylinder (10). A connecting plate (14) is movably installed in the movable groove (13). Brush bristles (15) are evenly fixedly installed on the outer side of the connecting plate (14) and the circumferential surface of the rotating cylinder (8). A spring (16) is symmetrically fixedly installed on the inner side of the connecting plate (14). The end of the spring (16) away from the connecting plate (14) is fixedly installed on the inner wall of the connecting cylinder (10). A glue applicator (20) is fixedly installed on the front side of the upper surface of the support base (1). The glue applicator (20) is located directly below the rotating cylinder (8).

2. The adhesive applicator according to claim 1, characterized in that: The support base (1) is fixedly mounted with casters (2) at the four corners of its bottom end.

3. The adhesive applicator according to claim 1, characterized in that: Guide blocks (11) are symmetrically fixedly installed on the left and right sides of the inner sidewall of the rotating cylinder (8), and sliding grooves (12) are symmetrically opened on the middle circumferential surface of the connecting cylinder (10), and the guide blocks (11) are movably installed in the sliding grooves (12).

4. The adhesive applicator according to claim 1, characterized in that: A fixing ring (17) is fixedly installed at the end of the connecting cylinder (10) away from the rotating cylinder (8). A fixing bolt (18) is threadedly connected to the circumferential surface of the fixing ring (17). Fixing holes (19) are evenly and symmetrically opened on the circumferential surface of the fixing plate (6). The fixing bolt (18) is threadedly connected in the fixing hole (19).

5. The adhesive applicator according to claim 1, characterized in that: The length of the connecting plate (14) is the same as the length of the movable groove (13).

6. The adhesive applicator according to claim 1, characterized in that: The diameter of the rotating drum (8) is smaller than the width of the glue coating box (20).

Images