An aluminum coil coating film thickness control device

Abstract

The utility model relates to an aluminium roll coating film thickness control equipment. Adopted technical scheme is: including the discharge end of aluminium roll body left side passes through the drying channel of upper and lower opposite setting coating roller and drying machine in proper order, the right end of aluminium roll body is wound on the flattening roller, and the front and rear pivot between upper coating roller is connected through telescopic push rod, the telescopic push rod is double -end telescopic design, the aluminium roll of flattening roller left side passes through detection mechanism, the detection mechanism includes base, the front and rear two sides of base upper surface are fixedly connected with the both ends of U type frame respectively, the middle of U type frame crossbeam evenly sets up a plurality of coating thickness gauge from front to back, and the guide pulley that can move back and forth is arranged between U type frame, and the guide pulley is provided with limiting slot, and the aluminium roll is limited. The utility model has the advantages of: reducing the shaking and deviation of aluminium roll, improving the stability and accuracy of detection.

Description

Technical Field

[0001] This utility model belongs to the field of film thickness control technology and relates to an aluminum coil coating film thickness control device. Background Technology

[0002] Aluminum coils are metal products that are rolled and bent on a casting and rolling mill before being sheared. In order to prevent oxidation and corrosion during daily use and processing, aluminum coils are generally coated with a film to effectively protect their surface.

[0003] According to the inspection institute, Chinese patent CN221619871U discloses an aluminum coil coating thickness control device, including an aluminum coil body, an outer shell attached to the outer wall of the aluminum coil body, a suction pump fixedly installed on the top of the outer shell, a fixed box fixedly installed in front of the suction pump, a filter cotton plate embedded in the front of the fixed box, an exhaust hole through the outer wall of the outer shell, and a top roller attached to the top of the aluminum coil body. In use, this invention allows hot air to accelerate the solidification of the coating on the surface of the aluminum coil body, stretching and flattening the aluminum coil body and maintaining it in a taut and smooth state. Then, a coating thickness gauge is activated to detect the coating thickness on the surface of the aluminum coil body. The telescopic push rod can be controlled to extend and retract via a control seat, thereby adjusting the position of the coating roller and thus changing the coating thickness. This device can improve the accuracy of film thickness measurement by using the roller to stretch the aluminum coil, thereby better adjusting the film thickness control effect. However, when the device is in use, the aluminum coil passes between the top and bottom rollers and is stretched by the stretching roller at the right end. During the process of passing through the control seat, the aluminum plate is in motion and inevitably shakes and deviates in the transmission direction. The control seat lacks a corresponding limiting mechanism, which leads to a large error in the coating thickness detected by the coating thickness gauge, affecting the control of the coating roller on the left side, and thus resulting in inaccurate control of the film thickness.

[0004] Therefore, this utility model provides an aluminum coil coating thickness control device to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model discloses an aluminum coil coating thickness control device. The technical solution adopted is as follows: The device includes an aluminum coil body. The feeding end of the aluminum coil body on the left side passes sequentially through the coating rollers arranged above and below and the drying channel of the dryer. The right end of the aluminum coil body is wound around a stretching roller. The front and rear rotating shafts of the upper and lower coating rollers are connected by a telescopic push rod. The telescopic push rod is a double-headed telescopic design. The aluminum coil on the left side of the stretching roller passes through a detection mechanism. The detection mechanism includes a base. The front and rear sides of the upper surface of the base are fixedly connected to the two ends of a U-shaped frame, respectively. Several coating films are evenly distributed from front to back in the middle of the crossbeam of the U-shaped frame. The layer thickness gauge has a bidirectional lead screw running through the lower middle of the front and rear vertical arms of the U-shaped frame. Guide columns are fixedly connected to the front and rear vertical arms of the U-shaped frame on both sides of the bidirectional lead screw. The bidirectional lead screw is located at the lower part of the aluminum coil. U-shaped movable plates are symmetrically mounted on the threads of the front and rear of the bidirectional lead screw. Mounting plates are fixedly mounted on the upper part of the opposite ends of the front and rear U-shaped movable plates. A miniature electric telescopic rod is mounted on the mounting plate. The telescopic shaft at the lower end of the miniature electric telescopic rod is fitted with a guide wheel. A distance detection sensor is mounted on the opposite edge of the front and rear mounting plates. The front end of the bidirectional lead screw is fixedly connected to the output shaft of a servo motor mounted on the front side of the U-shaped frame.

[0006] As a preferred embodiment of this utility model, the left and right sides of the U-shaped movable plate are movably mounted on the guide posts; by using guide posts, the stability of the U-shaped movable plate moving back and forth is improved.

[0007] As a preferred embodiment of this utility model, limiting rings are fixedly fitted on the telescopic shafts on both the upper and lower sides of the guide wheel; by using limiting rings, the guide wheel is prevented from falling off the telescopic shaft during rotation.

[0008] As a preferred embodiment of this utility model, a limiting groove is provided on the guide wheel; by using the limiting groove, it is convenient to limit the front and rear edges of the aluminum coil, ensuring that the aluminum coil passing between the left and right corresponding guide wheels is in a stable state, thereby improving the stability and accuracy of the coating thickness gauge.

[0009] As a preferred embodiment of this utility model, the detection end of the distance detection sensor at the bottom does not interfere with the guide wheel, and the detection end of the distance detection sensor at the bottom is higher than the top of the guide wheel in the vertical direction; this design avoids interference between the bottom of the distance detection sensor and the aluminum coil after the aluminum coil is stuck in the limiting groove on both sides.

[0010] As a preferred embodiment of this utility model, a top roller and a bottom roller are respectively attached to the upper and lower parts of the aluminum plate at the left end of the detection mechanism; by using the top roller and the bottom roller, it is easy to cooperate with the stretching roller at the right end to straighten and flatten the dried aluminum coil, thereby improving the stability of film thickness detection.

[0011] The beneficial effects of this utility model are as follows: By setting a detection mechanism on the aluminum coil on the left side of the stretching roller, a servo motor drives a bidirectional lead screw to rotate. The U-shaped movable plate on the bidirectional lead screw drives the front and rear guide wheels to limit the two sides of the aluminum coil, preventing it from tilting during transmission. At the same time, the miniature electric telescopic rod, in conjunction with the limiting grooves on the guide wheels, vertically limits the two sides of the aluminum coil flowing through the detection mechanism, preventing large vertical fluctuations. In addition, the four sets of distance detection sensors can detect the positional changes of four points on the front and rear edges of the aluminum coil in real time and provide real-time feedback, thereby effectively reducing the offset and horizontal runout of the aluminum coil, improving the stability and accuracy of the coating thickness gauge, and thus improving the quality of aluminum coil film thickness control. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the testing mechanism of this utility model;

[0014] Figure 3 Detailed diagram of the testing mechanism of this utility model;

[0015] Figure 4 This is a partial detail drawing of the testing mechanism of this utility model.

[0016] In the diagram: 1-Aluminum coil body, 2-Coating roller, 3-Dryer, 4-Straightening roller, 5-Telescopic push rod, 6-Detection mechanism, 7-Top roller, 8-Bottom roller, 61-Base, 62-U-shaped frame, 621-Guide column, 63-Coating thickness gauge, 64-Bidirectional lead screw, 65-U-shaped movable plate, 651-Mounting plate, 66-Miniature electric telescopic rod, 661-Limiting ring, 67-Guide wheel, 671-Limiting groove, 68-Distance detection sensor, 69-Servo motor. Detailed Implementation

[0017] Example 1

[0018] like Figures 1 to 4As shown, the aluminum coil coating thickness control device of this utility model adopts the following technical solution: It includes an aluminum coil body 1. The left feeding end of the aluminum coil body 1 passes sequentially through the drying channels of the upper and lower opposite coating rollers 2 and the dryer 3. The right end of the aluminum coil body 1 is wound around a stretching roller 4. The front and rear rotating shafts of the upper and lower coating rollers 2 are connected by a telescopic push rod 5, which is a double-headed telescopic design. The aluminum coil on the left side of the stretching roller 4 passes through a detection mechanism 6. Structure 6 includes a base 61, the front and rear sides of the upper surface of the base 61 being fixedly connected to both ends of a U-shaped frame 62, respectively. Several coating thickness gauges 63 are evenly arranged from front to back along the middle of the crossbeam of the U-shaped frame 62. A bidirectional lead screw 64 is threaded through the lower middle of the front and rear vertical arms of the U-shaped frame 62. Guide posts 621 are fixedly connected to the front and rear vertical arms of the U-shaped frame 62 on both sides of the bidirectional lead screw 64. The bidirectional lead screw 64 is located at the lower part of the aluminum coil. The threads of the bidirectional lead screw 64 are... A symmetrical U-shaped movable plate 65 is mounted on the upper part. The left and right sides of the U-shaped movable plate 65 are movably mounted on the guide column 621. The upper part of the opposite ends of the left and right sides of the front and rear U-shaped movable plates 65 is fixedly mounted with a mounting plate 651. A miniature electric telescopic rod 66 is mounted on the mounting plate 651. A limiting ring 661 is fixedly mounted on the telescopic shaft of the upper and lower sides of the guide wheel 67. The telescopic shaft at the lower end of the miniature electric telescopic rod 66 rotates to mount the guide wheel 67. A limiting groove 671 is opened on the guide wheel 67. A distance detection sensor 68 is mounted on the opposite edge of the front and rear mounting plates 651. The detection end of the distance detection sensor 68 does not interfere with the guide wheel 67. The detection end of the distance detection sensor 68 is higher than the upper end of the guide wheel 67 in the vertical direction. The front end of the bidirectional lead screw 64 is fixedly connected to the output shaft of the servo motor 69 mounted on the front side of the U-shaped frame 62. The top roller 7 and the bottom roller 8 are respectively attached to the upper and lower parts of the aluminum plate at the left end of the detection mechanism 6.

[0019] The device uses a PLC as the system controller, which is electrically connected to other electrical components and is equipped with a touch screen as a port for control, data display and setting.

[0020] The working principle of this utility model is as follows: During use, the aluminum coil body 1 starts from the left feeding end and passes sequentially through the upper and lower opposing coating rollers 2 to complete the coating process. It then enters the drying channel of the dryer 3 for coating curing. After drying, the aluminum coil moves to the right, is pulled between the top roller 7 and the bottom roller 8, passes through the detection mechanism 6, and finally winds onto the stretching roller 4. Before detection, based on the width of the aluminum coil, the servo motor 69 is controlled by an external controller and touchscreen to drive the bidirectional lead screw 64 to rotate. The bidirectional lead screw 64 drives the front and rear opposing U-shaped movable plates 65 to move towards the center, causing the front and rear opposing guide wheels 67 to contact and limit the front and rear edges of the aluminum coil. The micro electric telescopic rod 66 is adjusted to drive the corresponding guide wheel 67 downwards, causing the upper edge of the limiting groove 671 to contact the edge of the stretched and straightened aluminum coil. At this time, the distance detection sensor 68 on the mounting plate 651 can detect the distance to the surface of the aluminum coil in real time and record the distance data from the four positions. The data is displayed on the touchscreen. Then, the coating roller 2, top roller 7, bottom roller 8, and stretching roller 4 are controlled to move synchronously, so that the stretched aluminum coil slowly passes through the detection mechanism 6. When the aluminum coil passes through the detection mechanism 6, the coating thickness gauge 63 at the crossbeam of the U-shaped frame 62 on the base 61 performs real-time thickness detection of the aluminum coil coating. At the same time, the limiting grooves 671 of the front and rear guide wheels 67 ensure that the aluminum coil remains stable during movement and avoids deviation. Meanwhile, the distance sensor 68 monitors the jumping of the aluminum coil in real time. If the distance data detected by the four sets of distance sensors 68 is found to fluctuate abnormally and exceed the set threshold range, an alarm message can be displayed on the touchscreen to remind the staff to conduct on-site inspection, thereby reducing the shaking and deviation of the aluminum coil and the error of the coating thickness gauge 63. The coating thickness gauge 63 feeds back the real-time film thickness data to the control system. The system adjusts the telescopic push rod 5 to change the spacing of the coating roller 2, realizing closed-loop control of the aluminum coil coating film thickness. Finally, the stretching roller 4 completes the winding.

[0021] Electrical connection methods or structures not described in detail in this article are existing technologies.

[0022] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. An aluminum coil coating thickness control device, comprising an aluminum coil body (1), wherein the left side of the aluminum coil body (1) passes sequentially through the upper and lower opposite coating rollers (2) and the drying channel of a dryer (3), the right end of the aluminum coil body (1) is wound around a stretching roller (4), and the front and rear rotating shafts of the upper and lower coating rollers (2) are connected by a telescopic push rod (5), wherein the telescopic push rod (5) is a double-head telescopic design, characterized in that: The aluminum coil on the left side of the stretching roller (4) passes through the detection mechanism (6). The detection mechanism (6) includes a base (61). The front and rear sides of the upper surface of the base (61) are fixedly connected to the two ends of the U-shaped frame (62). Several coating thickness gauges (63) are evenly arranged from front to back in the middle of the crossbeam of the U-shaped frame (62). A bidirectional lead screw (64) is installed through the middle of the lower part of the front and rear vertical arms of the U-shaped frame (62). Guide columns (621) are fixedly connected to the front and rear vertical arms of the U-shaped frame (62) on the left and right sides of the bidirectional lead screw (64). The bidirectional lead screw (64) is located below the aluminum coil. The double-acting screw (64) is symmetrically fitted with U-shaped movable plates (65) on the front and rear threads. Mounting plates (651) are fixedly installed on the upper part of the opposite ends of the front and rear U-shaped movable plates (65). A miniature electric telescopic rod (66) is installed on the mounting plate (651). The telescopic shaft at the lower end of the miniature electric telescopic rod (66) is fitted with a guide wheel (67). A distance detection sensor (68) is installed on the opposite edge of the front and rear mounting plates (651). The front end of the double-acting screw (64) is fixedly connected to the output shaft of a servo motor (69) installed on the front side of the U-shaped frame (62).

2. The aluminum coil coating thickness control device according to claim 1, characterized in that: The left and right sides of the U-shaped movable plate (65) are movably mounted on the guide column (621).

3. The aluminum coil coating thickness control device according to claim 1, characterized in that: Limiting rings (661) are fixedly mounted on the telescopic shafts on both the upper and lower sides of the guide wheel (67).

4. The aluminum coil coating thickness control device according to claim 1, characterized in that: A limiting groove (671) is provided on the guide wheel (67).

5. The aluminum coil coating thickness control device according to claim 1, characterized in that: The detection end of the distance detection sensor (68) does not interfere with the guide wheel (67), and the detection end of the distance detection sensor (68) is higher than the upper end of the guide wheel (67) in the vertical direction.

6. The aluminum coil coating thickness control device according to claim 1, characterized in that: The top roller (7) and bottom roller (8) are respectively attached to the top and bottom of the aluminum plate at the left end of the detection mechanism (6).

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