A precise calibration and adjustment device for the gap of a metering roll of a gluing machine

Abstract

The utility model relates to adjusting device technical field discloses a kind of precise calibration adjusting device of metering roll gap of gluing machine, including two racks, two the rack interval arrangement, two the rack between be provided with glue roll and metering roll, further include the precise adjusting component for the precise adjustment between the gap of the metering roll and the glue roll, the mutual cooperation use of rack, metering roll and moving frame being set, can reach the effect of the precise calibration adjustment between the gap of glue roll and metering roll, the up-down movement coarse adjustment of metering roll is realized by rotating threaded rod, the fine fine motion adjustment of connecting pipe is realized by rotating first threaded column and second threaded column through the difference of the pitch of two, and the threaded rod and first threaded column are limited by the cooperation of limiting threaded tube and fixed bolt, avoid loose, double regulation ensures the distance precision between glue roll and metering roll, more practical.

Description

Technical Field

[0001] This utility model relates to the field of adjustment device technology, and in particular to a precision calibration and adjustment device for the gap of the metering rollers of a gluing machine. Background Technology

[0002] A gluing machine is an automated device that evenly coats materials such as paper, film, fabric, and leather with adhesive. It is widely used in industries such as packaging, printing, textiles, and automotive interiors. Its core function is to control the thickness, range, and uniformity of the adhesive coating through mechanical structures, ensuring stable bonding of the materials. Simply put, a gluing machine is like an "automated adhesive application tool," replacing manual application to improve efficiency and consistency. The metering roller is a key component in the gluing machine that controls the amount of adhesive applied. It typically works in conjunction with the "applying roller": the surface of the applying roller contacts the adhesive, and as it rotates, it carries the adhesive up. A tiny gap, known as the "metering roller gap," is formed between the metering roller and the applying roller. The amount of adhesive remaining on the applying roller is directly determined by the size of this gap; a larger gap results in a thicker coating, while a smaller gap results in a thinner coating.

[0003] In the existing technology, when adjusting the gap of the metering rollers of a gluing machine, the screw pitch is designed to be fixed, relying on a single adjustment method. It lacks a dual adjustment structure that combines coarse and fine adjustment, resulting in poor fine-tuning effect, difficulty in ensuring accuracy, and difficulty in meeting the requirements of precision calibration. Therefore, it is necessary to propose a precision calibration and adjustment device for the gap of the metering rollers of a gluing machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a precision calibration and adjustment device for the gap of the metering rollers in a gluing machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A precision calibration and adjustment device for the gap of a metering roller in a gluing machine includes two frames spaced apart. A gluing roller and a metering roller are disposed between the two frames. The device also includes a precision adjustment assembly for precisely adjusting the gap between the metering roller and the gluing roller. The precision adjustment assembly is disposed inside the frames and includes: a movable frame movably fitted inside the frames; a connecting pipe fixedly mounted on the top surface of the movable frame; a fourth threaded hole on the inner wall of the connecting pipe; a second threaded post threadedly connected to the inner wall of the fourth threaded hole; a first threaded post fixedly mounted on the top surface of the second threaded post; a pipe bracket movably fitted onto the outer wall of the connecting pipe; the pipe bracket movably fitted onto the frames; a third threaded hole on the top surface of the pipe bracket threadedly connected to the first threaded post; and a coarse adjustment mechanism for coarsely adjusting the movable frame on one side of the pipe bracket.

[0007] The coarse adjustment mechanism includes: a first support plate, which is fixedly installed on one side of the frame. A first circular through hole is opened on the top surface of the first support plate. A threaded rod is movably sleeved on the inner circular wall of the first circular through hole. A fixing ring is fixedly sleeved on the outer circular wall of the threaded rod. A second support plate is fixedly installed on the outer circular wall of the pipe rack. Second circular through holes are opened on both sides of the second support plate. A rotating plate is rotatably connected to the inner circular wall of the second circular through hole. A first threaded hole is opened on the top surface of the rotating plate. The first threaded hole is threadedly connected to the threaded rod.

[0008] As a further embodiment of this utility model, a first bearing seat is fixedly installed on the bottom surface of the movable frame for mounting the metering roller, and a second bearing seat is fixedly installed on the inner bottom surface of the frame for mounting the coating roller. A fixing plate is fixedly installed on one side of the first bearing seat, and a micro-sensor is fixedly sleeved inside the fixing plate. A distance measuring plate is fixedly installed on one side of the second bearing seat, and a PLC controller is fixedly installed on the right side of the frame. The PLC controller is electrically connected to the micro-sensor.

[0009] As a further embodiment of this utility model, the outer circular wall of the threaded rod is provided with a plurality of threaded grooves, and a second threaded hole is provided on one side of the first support plate. A fixing bolt is threadedly connected to the inner circular wall of the second threaded hole, and the fixing bolt is threadedly connected to the threaded groove.

[0010] As a further embodiment of this utility model, the outer circular wall surface of the first threaded column is threadedly connected to a limit threaded tube.

[0011] As a further embodiment of this utility model, a silicone pad is fixedly installed on the bottom surface of the limiting threaded tube.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By using the frame, coating roller, metering roller, and moving frame in coordination, the gap between the coating roller and the metering roller can be precisely calibrated and adjusted. The metering roller can be coarsely adjusted by rotating the threaded rod, and the connecting pipe can be finely adjusted by rotating the first and second threaded columns and adjusting their pitch difference. The threaded rod and the first threaded column are limited by the limiting threaded tube and the fixing bolt to prevent loosening. The dual adjustment ensures the accurate distance between the coating roller and the metering roller, which is quite practical. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of a precision calibration and adjustment device for the metering roller gap of a gluing machine proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the frame structure of a precision calibration and adjustment device for the metering roller gap of a gluing machine proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the coating roller structure of a precision calibration and adjustment device for the metering roller gap of a gluing machine proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the adjustment component structure of a precision calibration and adjustment device for the metering roller gap of a gluing machine proposed in this utility model;

[0018] Figure 5 This is a schematic diagram of the metering roller structure of a precision calibration and adjustment device for the metering roller gap of a gluing machine proposed in this utility model;

[0019] Figure 6 This is a schematic diagram of the second threaded hole structure of a precision calibration and adjustment device for the metering roller gap of a gluing machine proposed in this utility model;

[0020] Figure 7 This is a schematic diagram of the movable frame structure of a precision calibration and adjustment device for the metering roller gap of a gluing machine proposed in this utility model;

[0021] Figure 8 This is a schematic diagram of the tube frame structure of a precision calibration and adjustment device for the metering roller gap of a gluing machine proposed in this utility model.

[0022] In the diagram: 1. Frame; 2. Glue-applying roller; 3. Metering roller; 4. Moving frame; 5. Adjusting assembly; 6. Pipe rack; 7. First support plate; 8. Threaded rod; 9. Second support plate; 10. Rotating plate; 11. First threaded hole; 12. Second threaded hole; 13. Fixing ring; 14. Third threaded hole; 15. Fourth threaded hole; 16. First threaded post; 17. Second threaded post; 18. First bearing seat; 19. Second bearing seat; 20. Fixing plate; 21. Distance measuring plate; 22. Micro sensor; 23. Threaded groove; 24. Fixing bolt; 25. Limiting threaded tube; 26. Silicone pad. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Reference Figures 1-8 A precision calibration and adjustment device for the gap of a metering roller in a gluing machine includes two frames 1 spaced apart. A gluing roller 2 and a metering roller 3 are arranged between the two frames 1. The device also includes a precision adjustment component for precisely adjusting the gap between the metering roller 3 and the gluing roller 2. The precision adjustment component is located inside the frame 1 and includes: a movable frame 4, which is movably sleeved inside the frame 1. A connecting pipe 5 is fixedly installed on the top surface of the movable frame 4. A fourth threaded hole 15 is opened on the inner circular wall of the connecting pipe 5. A second threaded post 17 is threadedly connected to the inner circular wall of the fourth threaded hole 15. A first threaded post 16 is fixedly installed on the top surface of the second threaded post 17. A pipe frame 6 is movably sleeved on the outer circular wall of the connecting pipe 5 and is movably sleeved with the frame 1. A third threaded hole 14 is opened on the top surface of the pipe frame 6 and is threadedly connected to the first threaded post 16. A coarse adjustment mechanism for coarsely adjusting the movable frame 4 is provided on one side of the pipe frame 6.

[0027] In this embodiment, the coarse adjustment mechanism includes: a first support plate 7, which is fixedly installed on one side of the frame 1. A first circular through hole is opened on the top surface of the first support plate 7. A threaded rod 8 is movably sleeved on the inner circular wall of the first circular through hole. A fixing ring 13 is fixedly sleeved on the outer circular wall of the threaded rod 8. A second support plate 9 is fixedly installed on the outer circular wall of the pipe rack 6. Second circular through holes are opened on both sides of the second support plate 9. A rotating plate 10 is rotatably connected to the inner circular wall of the second circular through hole. A first threaded hole 11 is opened on the top surface of the rotating plate 10. The first threaded hole 11 is threadedly connected to the threaded rod 8.

[0028] In this embodiment, a first bearing seat 18 is fixedly installed on the bottom surface of the movable frame 4 for mounting the metering roller 3. A second bearing seat 19 is fixedly installed on the inner bottom surface of the frame 1 for mounting the coating roller 2. A fixing plate 20 is fixedly installed on one side of the first bearing seat 18. A micro sensor 22 is fixedly sleeved inside the fixing plate 20. A distance measuring plate 21 is fixedly installed on one side of the second bearing seat 19. A PLC controller is fixedly installed on one side of the frame 1 on the right side. The PLC controller is electrically connected to the micro sensor 22. A plurality of threaded grooves 23 are opened on the outer circular wall of the threaded rod 8. A second threaded hole 12 is opened on one side of the first support plate 7. A fixing bolt 24 is threadedly connected to the inner circular wall of the second threaded hole 12. The fixing bolt 24 is threadedly connected to the threaded groove 23. A limit threaded tube 25 is threadedly connected to the outer circular wall of the first threaded column 16. A silicone pad 26 is fixedly installed on the bottom surface of the limit threaded tube 25.

[0029] From the above description, it can be seen that the above-described embodiments of this utility model achieve the following technical effects: When the user needs to adjust the distance between the metering roller 3 and the glue coating roller 2 through the frame 1, the metering roller 3 is first coarsely adjusted: the fixing bolt 24 is rotated out from the inside of the second threaded hole 12 and the threaded groove 23 to release the fixing of the threaded rod 8. Then, the threaded rod 8 is rotated, and the fixing ring 13 limits the threaded rod 8 on the outer circular wall surface of the threaded rod 8 to prevent the threaded rod 8 from being skewed.

[0030] The rotating threaded rod 8 and the first threaded hole 11 convert the rotational motion into linear motion, causing the rotating plate 10 to drive the second support plate 9 and the pipe rack 6 to move up and down. At the same time, the rotating plate 10 can rotate to avoid jamming or jamming. Then, the distance between the distance measuring plate 21 and the micro sensor 22 is measured as A through the cooperation of the micro sensor 22 and the distance measuring plate 21. It should be noted that during production, the distance B between the glue coating roller 2 and the metering roller 3 is detected using standard instruments. A is then tare and set as B. Thus, when the metering roller 3 moves, the distance C between the glue coating roller 2 and the metering roller 3 can be obtained by subtracting the movement amount from B. When the distance C is close to the target distance, the rotation of the threaded rod 8 is stopped, and then fine adjustment is performed.

[0031] Rotating the limiting threaded tube 25 causes the silicone pad 26 to move upward. Then, by holding the top of the first threaded post 16 and rotating it, the rotating first threaded post 16 drives the second threaded post 17 to rotate. The third threaded hole 14 and the first threaded post 16 are engaged, and the fourth threaded hole 15 and the second threaded post 17 are engaged. The up and down directions are the same. The pitch P1 of the first threaded post 16 is greater than the pitch P2 of the second threaded post 17 (P = P1 - P2 = 0.05mm - 0.5mm, the difference P is set according to the requirements). Thus, when the first threaded post 16 is rotated, the connecting tube 5 is moved slightly, that is, the difference P between P1 and P2 is achieved. This causes the moving frame 4 and the metering roller 3 to move slightly, realizing the slight adjustment of the metering roller 3 and allowing for more precise adjustment of the metering roller 3.

[0032] It should be noted that, regardless of whether it is coarse or fine adjustment, the two ends of the metering roller 3 should be operated synchronously according to the distance C, and the difference between the left and right C should be controlled within the minimum range to avoid jamming.

[0033] Furthermore, by measuring distance with the micro-sensor 22 and coarseness adjustment, the metering roller 3 is accurately calibrated. After calibration, the fixing bolt 24 and the limiting threaded tube 25 are rotated back to prevent the threaded rod 8 and the first threaded column 16 from rotating on their own.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A precision calibration and adjustment device for the gap of a metering roller in a gluing machine, comprising two frames (1) spaced apart, wherein a gluing roller (2) and a metering roller (3) are disposed between the two frames (1), characterized in that, It also includes a precision adjustment assembly for precisely adjusting the gap between the metering roller (3) and the coating roller (2). The precision adjustment assembly is disposed inside the frame (1). The precision adjustment assembly includes: a movable frame (4), which is movably sleeved inside the frame (1). A connecting pipe (5) is fixedly installed on the top surface of the movable frame (4). A fourth threaded hole (15) is opened on the inner circular wall of the connecting pipe (5). The inner circular wall of the fourth threaded hole (15) is threaded. A second threaded post (17) is connected, and a first threaded post (16) is fixedly installed on the top surface of the second threaded post (17). A pipe bracket (6) is movably sleeved on the outer circular wall of the connecting pipe (5). The pipe bracket (6) is movably sleeved with the frame (1). A third threaded hole (14) is opened on the top surface of the pipe bracket (6). The third threaded hole (14) is threadedly connected to the first threaded post (16). A coarse adjustment mechanism for coarse adjustment of the moving frame (4) is provided on one side of the pipe bracket (6).

2. The precision calibration and adjustment device for the metering roller gap of a gluing machine according to claim 1, characterized in that, The coarse adjustment mechanism includes: a first support plate (7), which is fixedly installed on one side of the frame (1). A first circular through hole is opened on the top surface of the first support plate (7). A threaded rod (8) is movably sleeved on the inner circular wall of the first circular through hole. A fixing ring (13) is fixedly sleeved on the outer circular wall of the threaded rod (8). A second support plate (9) is fixedly installed on the outer circular wall of the pipe rack (6). A second circular through hole is opened on both sides of the second support plate (9). A rotating plate (10) is rotatably connected to the inner circular wall of the second circular through hole. A first threaded hole (11) is opened on the top surface of the rotating plate (10). The first threaded hole (11) is threadedly connected to the threaded rod (8).

3. The precision calibration and adjustment device for the metering roller gap of a gluing machine according to claim 1, characterized in that, The bottom surface of the movable frame (4) is fixedly equipped with a first bearing seat (18) for mounting the metering roller (3). The bottom surface of the frame (1) is fixedly equipped with a second bearing seat (19) for mounting the coating roller (2). A fixing plate (20) is fixedly installed on one side of the first bearing seat (18). A micro sensor (22) is fixedly sleeved inside the fixing plate (20). A distance measuring plate (21) is fixedly installed on one side of the second bearing seat (19). A PLC controller is fixedly installed on one side of the frame (1) on the right side. The PLC controller is electrically connected to the micro sensor (22).

4. The precision calibration and adjustment device for the metering roller gap of a gluing machine according to claim 2, characterized in that, The outer circular wall of the threaded rod (8) is provided with a plurality of threaded grooves (23), and a second threaded hole (12) is provided on one side of the first support plate (7). A fixing bolt (24) is threadedly connected to the inner circular wall of the second threaded hole (12), and the fixing bolt (24) is threadedly connected to the threaded groove (23).

5. The precision calibration and adjustment device for the metering roller gap of a gluing machine according to claim 1, characterized in that, The outer circular wall of the first threaded column (16) is threaded to a limit threaded tube (25).

6. The precision calibration and adjustment device for the metering roller gap of a gluing machine according to claim 5, characterized in that, A silicone pad (26) is fixedly installed on the bottom surface of the limiting threaded tube (25).

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