Multifunctional roller coating equipment for screen sealing glue coating

Abstract

The utility model discloses a multifunctional roll coating device for screen sealing glue coating, which comprises a working table, a moving assembly, a glue supply assembly and a coating roll, and the moving assembly is mounted on the working table through a pair of side frames; the moving assembly comprises a single screw rotationally mounted between the side frames, a motor fixed on the outer walls of the side frames and used for driving the single screw to rotate, a movable frame in threaded connection with the periphery of the single screw, an electric push rod fixed below the movable frame and a hanging bracket mounted at the lower end of the electric push rod, and the coating roller is rotationally mounted below the hanging bracket; and the glue supply assembly comprises a glue storage tank, a glue supply pump, a glue conveying pipeline and a glue outlet nozzle. When the screen sealing glue coating device is used for coating screen sealing glue, the glue is firstly extruded through the glue supply assembly, and then the moving assembly is used for driving the coating roller to roll and extrude the glue, so that the glue is more tightly contacted with a to-be-bonded body, the generation of bubbles is reduced, the glue is more uniformly distributed, and the quality of the screen sealing glue is improved. Therefore, the coating effect of the glue on the to-be-bonded body is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic product manufacturing, in particular to a multifunctional roller coating device for screen sealing glue coating. Background Technique

[0002] Screen sealing glue, also often referred to as screen sealing adhesive or screen sealant, is a material used to bond the screen to the rear case or other components to achieve the functions of sealing and structural adhesion. It plays an important role in the manufacturing of electronic products, especially in the production of devices such as mobile phones, tablet computers, and display screens.

[0003] With the rapid development of electronic products, the requirements for the sealing performance of components such as screens are getting higher and higher. The traditional screen sealing glue coating method is usually: directly squeezing the glue onto the position to be bonded by a glue coating machine. When the glue falls on the bonding place, problems such as bubbles and uneven coating are likely to occur between the glue and the surface of the object to be bonded, which are difficult to meet the production requirements of modern electronic products.

[0004] Therefore, we propose a multifunctional roller coating device for screen sealing glue coating to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multifunctional roller coating device for screen sealing glue coating to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multifunctional roller coating device for screen sealing glue coating includes a workbench, a moving component, a glue supply component, and a coating roller. The moving component is installed on the workbench through a pair of side frames. The moving component includes a single screw rotatably installed between the side frames, a motor fixed on the outer wall of the side frame for driving the single screw to rotate, a movable frame threadedly connected to the periphery of the single screw, an electric push rod fixed below the movable frame, and a hanging frame installed at the lower end of the electric push rod. The coating roller is rotatably installed below the hanging frame;

[0008] The glue supply component includes a glue storage tank, a glue supply pump, a glue delivery pipeline, and a glue outlet nozzle. The glue storage tank is fixed on the movable frame, and the glue supply pump is installed at the discharge port of the glue storage tank. The glue outlet nozzle is obliquely installed on the side of the hanging frame, and the glue outlet nozzle is connected to the glue supply pump through the glue delivery pipeline.

[0009] In a further embodiment, a first optical rod parallel to the single screw is also installed between the side frames, and the first optical rod slidably penetrates inside the movable frame.

[0010] In a further embodiment, a second optical rod parallel to the telescopic direction of the electric push rod is also installed on the hanging frame, and the second optical rod slidably penetrates the bottom plate of the movable frame.

[0011] In a further embodiment, annular grooves are symmetrically formed on the outer surfaces of the coating roller near both ends, and the outer diameter of the cylindrical section of the coating roller between the annular grooves is larger than the outer diameter of both ends of the coating roller.

[0012] In a further embodiment, a double-headed screw is rotatably installed inside the hanger. Movable plates are symmetrically screwed onto the two threaded sections of the double-headed screw, and the upper edges of the movable plates are slidably connected to the convex ribs on the inner top of the hanger. Clamping blocks are rotatably installed on the opposite sides of the lower ends of the movable plates, and the clamping blocks are used to clamp the coating roller.

[0013] In a further embodiment, a number of insertion rods are connected to the opposite sides of the clamping blocks, and insertion slots matching the insertion rods are formed on both end faces of the coating roller.

[0014] In a further embodiment, a pair of positioning clamping plates are also installed on the workbench. One positioning clamping plate is fixedly connected to the workbench, and the other positioning clamping plate is movably connected to the workbench. The movably connected positioning clamping plate slides in the chute on the surface of the workbench, and a bolt penetrates through and is screwed into the movably connected positioning clamping plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] When the present utility model is used for coating the sealing screen glue, first, the glue is extruded by the glue supply assembly, and then the coating roller is driven by the moving assembly to roll and extrude the glue, so that the glue is in closer contact with the object to be bonded, thereby reducing the generation of bubbles and making the distribution of the glue more uniform. Therefore, the coating effect of the glue on the object to be bonded is effectively improved, which is convenient for improving the firmness of the subsequent screen bonding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present utility model;

[0018] Figure 2 It is a schematic installation structure diagram of the moving assembly, glue supply assembly and coating roller of the present utility model;

[0019] Figure 3 It is a schematic installation structure diagram of the hanger and the coating roller of the present utility model;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of the installation of the coating roller and the movable plate of the present utility model.

[0021] In the figure: 1, workbench; 2, side frame; 3, single screw; 4, motor; 5, movable frame; 6, electric push rod; 7, hanging frame; 71, double-headed screw; 72, movable plate; 73, convex rib; 74, clamping block; 741, inserting rod; 8, coating roller; 81, annular groove; 82, slot; 9, glue storage tank; 10, glue supply pump; 11, glue delivery pipeline; 12, glue outlet nozzle; 13, positioning clamping plate; 14, first optical rod; 15, second optical rod; 16, sliding groove; 17, bolt. Detailed implementation manner

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "plural" is two or more.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0025] Please refer to Figure 1-2, A multi-functional roll coating device for applying sealing screen glue, comprising a workbench 1, a moving component, a glue supply component and a coating roller 8. Among them, the workbench 1 is used to place the screen to be bonded, the moving component is used to drive the coating roller 8 to roll and coat along the bonding edge of the screen to be bonded, the glue supply component is used to extrude the glue liquid. The moving component is installed on the workbench 1 through a pair of side frames 2, and the moving component includes a single screw rod 3 rotatably installed between the side frames 2, a motor 4 fixed on the outer wall of the side frame 2 for driving the single screw rod 3 to rotate, a movable frame 5 threadedly connected to the periphery of the single screw rod 3, an electric push rod 6 fixed below the movable frame 5, and a hanging frame 7 installed at the lower end of the electric push rod 6. Among them, the single screw rod 3 is parallel to the surface of the workbench 1. When the single screw rod 3 rotates, the movable frame 5 moves horizontally along the length direction of the single screw rod 3. The coating roller 8 is rotatably installed below the hanging frame 7, and the electric push rod 6 drives the coating roller 8 to lift and lower, so as to be close to or away from the screen to be bonded, so as to control the coating thickness of the glue liquid.

[0026] Please refer to Figure 1-2 , In order to improve the working stability of the coating roller 8, it is provided that a first optical rod 14 parallel to the single screw rod 3 is also installed between the side frames 2, and the first optical rod 14 slidably penetrates inside the movable frame 5, so as to limit the movable frame 5 and prevent it from deflecting during horizontal movement. Similarly, a second optical rod 15 parallel to the telescopic direction of the electric push rod 6 is also installed on the hanging frame 7, and the second optical rod 15 slidably penetrates the bottom plate of the movable frame 5, so as to limit the hanging frame 7 and prevent the hanging frame 7 from deflecting during the lifting process.

[0027] Please refer to Figure 3-4 , Further, annular grooves 81 are symmetrically formed on the outer surfaces of the two ends of the coating roller 8, and the outer diameter of the cylindrical section of the coating roller 8 between the annular grooves 81 is larger than the outer diameter of the two ends of the coating roller 8. When the coating roller 8 rolls, the cylindrical section between the annular grooves 81 contacts the glue liquid first. After the glue liquid is extruded, it flows towards the annular grooves 81, thereby reducing the overflow of the glue liquid from both ends of the coating roller 8, making the edge of the glue liquid path formed by the rolling and coating of the coating roller 8 smoother and reducing the problem of glue liquid overflow.

[0028] Please refer to Figure 3-4, for the convenience of disassembling, installing and replacing the coating roller 8, a double-headed screw rod 71 is rotatably installed inside the hanging frame 7. Movable plates 72 are symmetrically screwed onto the two threaded sections of the double-headed screw rod 71. The thread directions of the two threaded sections of the double-headed screw rod 71 are opposite. Thus, when the double-headed screw rod 71 rotates, the two movable plates 72 can move synchronously and in opposite directions. The upper edge of the movable plate 72 is slidably connected to the convex rib 73 on the inner top of the hanging frame 7, thereby limiting the movable plate 72 to prevent it from deflecting. Clamping blocks 74 are rotatably installed on the opposite sides of the lower ends of the movable plates 72. The clamping blocks 74 are used to clamp the coating roller 8, making it convenient to disassemble and install the coating roller 8. To improve the clamping firmness of the coating roller 8, a number of insertion rods 741 are connected to the opposite sides of the clamping blocks 74, and slots 82 that match the insertion rods 741 are provided on the two end faces of the coating roller 8. When the clamping blocks 74 clamp the coating roller 8, the insertion rods 741 just insert into the slots 82, effectively avoiding the problem of slipping between the clamping blocks 74 and the coating roller 8.

[0029] Please refer to Figure 1-2 , the glue supply assembly includes a glue storage tank 9, a glue supply pump 10, a glue delivery pipeline 11 and a glue outlet nozzle 12. Among them, the glue storage tank 9 is fixed on the movable frame 5, and the glue supply pump 10 is installed at the discharge port of the glue storage tank 9. The glue outlet nozzle 12 is inclined and installed on the side of the hanging frame 7, and the glue outlet nozzle 12 is connected to the glue supply pump 10 through the glue delivery pipeline 11, so that the glue in the glue storage tank 9 can be extruded from the glue outlet nozzle 12, facilitating subsequent coating operations.

[0030] Please refer to Figure 1 , to reduce the shaking of the screen to be bonded when the coating roller 8 performs rolling coating, a pair of positioning clamping plates 13 are also installed on the workbench 1. One of the positioning clamping plates 13 is fixedly connected to the workbench 1, making the screen to be bonded closely lean against the fixed positioning clamping plate 13. The other positioning clamping plate 13 is slidably connected to the chute 16 on the surface of the workbench 1, and a bolt 17 is penetrated and screwed into the movable positioning clamping plate 13. When the bolt 17 is tightened and abuts against the inner bottom of the chute 16, the position of the movable positioning clamping plate 13 can be locked, so that the two positioning clamping plates 13 limit the screen to be bonded, preventing it from shifting during the glue coating process.

[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0032] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multifunctional roller coating device for coating screen glue, comprising a workbench (1), a moving component, a glue supply component and a coating roller (8), characterized in that: The movable assembly is mounted on the workbench (1) via a pair of side frames (2), and comprises a single screw (3) rotatably mounted between the side frames (2), a motor (4) fixed on the outer wall of the side frame (2) for driving the single screw (3) to rotate, a movable frame (5) threadedly connected to the outer periphery of the single screw (3), an electric push rod (6) fixed below the movable frame (5), and a hanger (7) mounted at the lower end of the electric push rod (6), wherein the coating roller (8) is rotatably mounted below the hanger (7); The glue supply assembly comprises a glue storage tank (9), a glue supply pump (10), a glue delivery pipeline (11) and a glue discharge nozzle (12); the glue storage tank (9) is fixed on a movable frame (5), and the glue supply pump (10) is installed at the discharge port of the glue storage tank (9); the glue discharge nozzle (12) is installed obliquely on the side of the hanger (7), and the glue discharge nozzle (12) and the glue supply pump (10) are connected via the glue delivery pipeline (11).

2. The multifunctional roller coating equipment for screen sealing glue coating according to claim 1 is characterized in that: A light rod (14) arranged parallel to the single screw rod (3) is also installed between the side frames (2), and the light rod (14) slides through the inside of the movable frame (5).

3. The multifunctional roller coating equipment for screen sealing glue coating according to claim 1 is characterized in that: The hanger (7) is also provided with a second light rod (15) which is parallel to the telescopic direction of the electric push rod (6), and the second light rod (15) slides through the bottom plate of the movable frame (5).

4. The multifunctional roller coating equipment for screen sealing glue coating according to claim 1 is characterized in that: Annular grooves (81) are symmetrically formed on the outer surface of the coating roller (8) near both ends, and the outer diameter of the cylindrical section between the annular grooves (81) on the coating roller (8) is larger than the outer diameter at the two ends of the coating roller (8).

5. The multifunctional roller coating equipment for screen sealing glue coating according to claim 1 is characterized in that: A double-headed screw (71) is rotatably mounted inside the hanger (7), and a movable plate (72) is symmetrically screwed on two threaded sections of the double-headed screw (71), and the upper edge of the movable plate (72) is slidably connected to a convex ridge (73) at the top of the hanger (7), and a clamping block (74) is rotatably mounted on the opposite side of the lower end of the movable plate (72), and the clamping block (74) is used to clamp the coating roller (8).

6. The multifunctional roller coating equipment for screen sealing glue coating according to claim 5 is characterized in that: A plurality of insertion rods (741) are connected to opposite sides of the clamping block (74), and slots (82) matching the insertion rods (741) are provided on both end surfaces of the coating roller (8).

7. The multifunctional roller coating equipment for screen sealing glue coating according to claim 1 is characterized in that: A pair of positioning clamps (13) are also installed on the workbench (1), wherein one positioning clamp (13) is fixedly connected to the workbench (1), and the other positioning clamp (13) is movably connected to the workbench (1), and the movably connected positioning clamp (13) slides in a slide groove (16) on the surface of the workbench (1), and a bolt (17) passes through and is screwed on the movably connected positioning clamp (13).

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