Scraper pressure-sensitive automatic rotating device

Abstract

The utility model relates to the technical field of insulation paper production equipment, and discloses a scraper pressure-sensitive automatic rotating device which comprises a mounting frame, an adjusting frame is rotatably mounted on the inner side of the mounting frame, a clamping plate is arranged at the lower end of the adjusting frame, the adjusting frame is connected with the clamping plate through a spring rod, and a pressure sensor is mounted at the joint of the adjusting frame and the clamping plate. When the device is used, the contact force between the doctor blade and insulation paper can be fed back in real time through the arranged pressure sensor, and then the inclination of the doctor blade is changed through rotation of the motor according to the feedback result to adjust the pressure of the doctor blade. Compared with manual adjustment, the glue scraping device has the advantages that the reaction is quicker, the adjustment is more accurate, the pressure between the scraper and the insulation paper can be always maintained in a suitable range, and the problems of poor glue scraping effect and the like caused by unstable pressure are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of insulating paper production equipment, specifically to an automatic rotating device for pressure-sensitive scrapers. Background Technology

[0002] In the production process of insulating paper, especially in insulating paper composite equipment, it is often necessary to precisely control the thickness of the coatings or adhesives applied to the insulating paper.

[0003] However, traditional scraper devices have some drawbacks. For example, most existing scrapers are fixed in place, making it impossible to flexibly adjust their angle and pressure according to actual production needs. This makes it difficult to guarantee the uniformity and thickness accuracy of the insulating paper coating under different production process requirements. Furthermore, when the scraper wears down, its position and pressure cannot be automatically adjusted in a timely manner, affecting product quality. Frequent manual adjustments are not only inefficient but also prone to introducing human error. In addition, adhesive residue can remain on the scraper surface during use; if not cleaned promptly, this can affect the efficient and stable operation of the device.

[0004] To address the aforementioned issues, this application proposes an automatic rotating device for pressure-sensitive scrapers. Utility Model Content

[0005] The purpose of this invention is to provide a pressure-sensitive automatic rotating device for a scraper, in order to solve the problems mentioned in the background art where the scraper cannot automatically adjust its position and pressure in a timely manner during the scraping process and the residual adhesive layer on the scraper surface cannot be cleaned in a timely manner.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a scraper pressure-sensitive automatic rotating device, comprising a mounting frame, an adjusting frame rotatably mounted on the inner side of the mounting frame, a clamping plate at the lower end of the adjusting frame, the adjusting frame and the clamping plate being connected by a spring rod, and a pressure sensor being installed at the connection point; a scraper blade being detachably mounted on the inner side of the lower end of the clamping plate; a rotating shaft being fixedly connected to both ends of the adjusting frame, a first gear being fixedly mounted on one end of one rotating shaft, the first gear meshing with a second gear, and both the first gear and the second gear being located on the inner surface of one side of the mounting frame; one end of the second gear being connected to the drive shaft of a motor; the pressure sensor and the motor being electrically connected to a central control unit; and the motor and the central control unit being fixedly mounted on the outer surface of one side of the mounting frame.

[0007] Preferably, the pressure sensor includes an elastomer, a strain gauge, and a signal processing module.

[0008] Preferably, the diameter of the first gear is larger than that of the second gear, and the motor has a built-in planetary gear reduction mechanism.

[0009] Preferably, mounting blocks are fixedly connected to both outer surfaces of the clamping plate, and a cleaning device is detachably connected to the lower end of the mounting blocks.

[0010] Preferably, the cleaning device includes a cleaning scraper and a fixing block. There are two fixing blocks, which are respectively connected to the mounting block. A sliding rod and a threaded rod are fixedly installed between the two fixing blocks. One end of the threaded rod is connected to a drive motor located on one side of the fixing block.

[0011] Preferably, the cleaning scraper is located on the outer surface of the front end of the scraper blade, and its upper end is sleeved on the outer wall of the slide rod and the threaded rod. The cleaning scraper has a built-in resistance heating wire.

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

[0013] This invention uses a pressure sensor to provide real-time feedback on the contact force between the scraper and the insulating paper. Based on the feedback, the pressure is adjusted by changing the tilt of the scraper through motor rotation. Compared to manual adjustment, this method is faster and more precise, ensuring that the pressure between the scraper and the insulating paper is always maintained within a suitable range. This effectively avoids problems such as poor glue application due to unstable pressure.

[0014] This invention uses a drive motor to rotate a threaded rod in both directions. The threaded rod uses threaded transmission to make the cleaning scraper move back and forth along the slide bar axis. At the same time, the cleaning scraper has an internal heating wire that is energized to heat up and soften the residual adhesive on the scraper surface. The cleaning scraper mechanically scrapes off the adhesive layer during movement, ensuring the scraper is clean and maintaining the efficient and stable operation of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a pressure-sensitive automatic rotating device for scrapers according to this utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the adjusting frame and clamping plate in the automatic rotating device for pressure-sensitive scrapers of this utility model;

[0017] Figure 3 This is a schematic diagram showing the positional relationship between the first gear and the second gear in a scraper pressure-sensitive automatic rotating device of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the clamping plate and cleaning device in the scraper pressure-sensitive automatic rotating device of this utility model;

[0019] Figure 5 This is a schematic diagram of the main structure of the cleaning device in the scraper pressure-sensitive automatic rotating device of this utility model;

[0020] Figure 6This is a structural block diagram of the central control unit, pressure sensor, motor, and drive motor of a scraper pressure-sensitive automatic rotation device according to this utility model.

[0021] In the diagram: 1. Mounting bracket; 2. Adjusting bracket; 3. Clamping plate; 4. Spring rod; 5. Pressure sensor; 6. Scraper; 7. Rotating shaft; 8. First gear; 9. Second gear; 10. Motor; 11. Central control; 12. Mounting block; 13. Cleaning device; 14. Cleaning scraper; 15. Fixing block; 16. Slide rod; 17. Threaded rod; 18. Drive motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-6This utility model provides a technical solution: a pressure-sensitive automatic rotating scraper device, including a mounting frame 1, an adjusting frame 2 rotatably mounted on the inner side of the mounting frame 1, a clamping plate 3 at the lower end of the adjusting frame 2, the adjusting frame 2 and the clamping plate 3 connected by a spring rod 4, and a pressure sensor 5 installed at the connection point. A scraper 6 is detachably mounted on the inner side of the lower end of the clamping plate 3. Rotating shafts 7 are fixedly connected to both ends of the adjusting frame 2, with a first gear 8 fixedly mounted at one end of one rotating shaft 7. The first gear 8 meshes with a second gear 9, and both the first gear 8 and the second gear 9 are located on the inner surface of one side of the mounting frame 1. One end of the second gear 9 is connected to the drive shaft of a motor 10. The pressure sensor 5 and the motor 10 are electrically connected to a central control 11, and the motor 10 and the central control 11 are fixedly mounted on the outer surface of one side of the mounting frame 1. When insulating paper passes through the bottom of the scraper 6 via a conveying mechanism, the scraper 6 scrapes off the adhesive on the insulating paper. Pressure sensor 5 detects the pressure between scraper 6 and insulating paper in real time. The elastic body deforms under stress, causing a change in resistance in the strain gauge. The signal processing module feeds the pressure data back to central control unit 11. If the pressure exceeds the set range, central control unit 11 starts motor 10, driving the second gear 9 to rotate, which in turn drives the first gear 8 to rotate, causing the adjustment frame 2 to rotate, thus achieving precise adjustment of the scraper 6's tilt angle. When the scraper 6's tilt angle increases, the horizontal height of the scraper blade increases, resulting in a decrease in pressure between the scraper 6 and the insulating paper. Conversely, when the scraper 6's tilt angle decreases, the horizontal height of the scraper blade shortens, increasing the pressure applied by the scraper 6 to the insulating paper. By precisely adjusting the tilt angle of the scraper 6, the pressure between the scraper 6 and the insulating paper can be adjusted. Pressure sensor 5 includes an elastic body, strain gauges, and a signal processing module. The elastic body is made of stainless steel, with strain gauges attached to its surface. The strain gauges are connected to the signal processing module via wires. The signal processing module is integrated inside pressure sensor 5 and is used to detect and transmit pressure data to central control unit 11 in real time. The elastomer is made of stainless steel, possessing excellent elasticity and stability. When pressure is applied to the elastomer, it deforms, and the strain gauges attached to its surface also deform accordingly, causing a change in the resistance value of the strain gauges. This change in resistance value is transmitted to the signal processing module via wires. The signal processing module converts the resistance change into an electrical signal, processes and amplifies the signal, and finally transmits the processed pressure data to the central control unit 11. The diameter of the first gear 8 is larger than that of the second gear 9, and the motor 10 incorporates a planetary gear reduction mechanism. The planetary gear reduction mechanism includes a sun gear, planet gears, and a ring gear, used to reduce the output speed and increase torque, ensuring smooth and precise rotation of the adjusting frame 2. The larger diameter of the first gear 8 provides a certain degree of speed reduction, which, combined with the reduction device within the motor 10, further reduces the speed transmitted from the motor 10 to the first gear 8.

[0024] In this embodiment, as Figure 2 Figure 4As shown, mounting blocks 12 are fixedly connected to both outer surfaces of the clamping plate 3, and a cleaning device 13 is detachably connected to the lower end of the mounting block 12. When the cleaning device 13 has been used for a long time and a large amount of glue has accumulated on the surface of the cleaning scraper 14, affecting the cleaning effect, the operator can unscrew the bolts to remove the cleaning device 13 from the mounting block 12. After cleaning the cleaning device 13 or replacing the cleaning scraper 14, it can be reinstalled on the mounting block 12 to allow the device to continue to work normally. The cleaning device 13 includes a cleaning scraper 14 and a fixing block 15. There are two fixing blocks 15, which are respectively connected to the mounting block 12, and a sliding rod 16 and a threaded rod 17 are fixedly installed between the two fixing blocks 15. One end of the threaded rod 17 is connected to a drive motor 18 located on one side of the fixing block 15. The drive motor 18 is electrically connected to the central control 11. During device operation, when cleaning of scraper 6 is required, drive motor 18 is started and rotates forward. Drive motor 18 drives threaded rod 17 to rotate forward, and cleaning scraper 14 moves in one direction along slide rod 16 under the action of threaded transmission. When drive motor 18 reverses, threaded rod 17 reverses, and cleaning scraper 14 moves in the opposite direction, realizing reciprocating movement. Cleaning scraper 14 is located on the outer surface of the front end of scraper 6, and its upper end is sleeved on the outer wall of slide rod 16 and threaded rod 17. Cleaning scraper 14 has a built-in resistance heating wire. Slide rod 16 provides axial movement guidance for cleaning scraper 14, so that it can only move along the direction of slide rod 16. When threaded rod 17 rotates forward and reverse, the threaded transmission principle drives cleaning scraper 14 to move reciprocally at the front end of scraper 6. During the movement, cleaning scraper 14 contacts the surface of scraper 6 and scrapes off the glue accumulated on the surface of scraper 6. At the same time, the resistance wire inside the cleaning scraper 14 is energized, and the resistance wire heats up, which in turn heats the cleaning scraper 14, allowing it to better scrape off the adhesive accumulated on the surface of the scraper 6.

[0025] Working principle:

[0026] The insulating paper is smoothly conveyed to the bottom of the scraper 6 by the conveying mechanism. The scraper 6 makes close contact with the surface of the insulating paper, accurately scraping off the adhesive layer. During this process, the spring rod 4 is in an initial compressed state, providing basic pressure for the contact between the scraper 6 and the insulating paper. The pressure sensor 5 plays a constant monitoring role. When the elastic body deforms due to the contact pressure between the scraper 6 and the insulating paper, the resistance value of the strain gauge attached to the surface of the elastic body changes accordingly. The signal processing module responds quickly, accurately converting this resistance change into an electrical signal and transmitting it to the central control unit 11 in real time. When the central control unit 11 detects that the pressure exceeds the preset reasonable range, it immediately starts the motor 10 to rotate forward. This drives the second gear 9 to rotate, and the rotation of the second gear 9 drives the larger diameter first gear 8 to rotate at a reduced speed. The rotational force of the first gear 8 is transmitted through the rotating shaft 7, causing the adjusting frame 2 to rotate clockwise. As the adjusting frame 2 rotates, the tilt angle of the scraper 6 increases, thereby effectively reducing the contact pressure between the scraper 6 and the insulating paper. Conversely, when the pressure is too low, the central control unit 11 starts the motor 10 to rotate in reverse. The power generated by the reverse rotation of motor 10, through the same transmission path, causes the adjusting frame 2 to rotate counterclockwise, thereby reducing the tilt angle of scraper 6 and increasing the contact pressure between scraper 6 and insulating paper. During device operation, when cleaning of scraper 6 is required, drive motor 18 starts, driving threaded rod 17 to rotate in both directions. Since the upper end of cleaning scraper 14 is sleeved on the outer wall of slide rod 16 and threaded rod 17, slide rod 16 provides a stable guide, restricting the rotation of cleaning scraper 14. Therefore, the rotation of threaded rod 17 utilizes the threaded transmission principle to drive cleaning scraper 14 to move back and forth along the axial direction of slide rod 16. At the same time, the heating wire built into cleaning scraper 14 is energized and heats up, raising the temperature of cleaning scraper 14 and effectively softening the residual adhesive on the surface of scraper 6. During the reciprocating movement of cleaning scraper 14, the softened adhesive layer is mechanically scraped off, ensuring that the surface of scraper 6 is thoroughly cleaned and maintaining the efficient and stable operation of the device.

[0027] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A pressure-sensitive automatic rotating device for a scraper, comprising a mounting bracket (1), characterized in that: An adjusting frame (2) is rotatably mounted on the inner side of the mounting frame (1). A clamping plate (3) is provided at the lower end of the adjusting frame (2). The adjusting frame (2) and the clamping plate (3) are connected by a spring rod (4), and a pressure sensor (5) is installed at the connection between the two. A scraper (6) is detachably mounted on the inner side of the lower end of the clamping plate (3). A rotating shaft (7) is fixedly connected to both ends of the adjusting frame (2). A first gear (8) is fixedly mounted on one end of one rotating shaft (7). The first gear (8) and the second gear (9) mesh with each other. The first gear (8) and the second gear (9) are both located on the inner surface of one side of the mounting frame (1). One end of the second gear (9) is connected to the drive shaft of the motor (10). The pressure sensor (5) and the motor (10) are electrically connected to the central control (11). The motor (10) and the central control (11) are both fixedly mounted on the outer surface of one side of the mounting frame (1).

2. The automatic rotating device for pressure-sensitive scrapers according to claim 1, characterized in that: The pressure sensor (5) includes an elastomer, a strain gauge, and a signal processing module.

3. The automatic rotating device for pressure-sensitive scrapers according to claim 1, characterized in that: The diameter of the first gear (8) is larger than that of the second gear (9), and the motor (10) has a built-in planetary gear reduction mechanism.

4. The automatic rotating device for pressure-sensitive scrapers according to claim 1, characterized in that: Mounting blocks (12) are fixedly connected to both outer surfaces of the clamping plate (3), and a cleaning device (13) is detachably connected to the lower end of the mounting block (12).

5. The automatic rotating device for pressure-sensitive scrapers according to claim 4, characterized in that: The cleaning device (13) includes a cleaning scraper (14) and a fixing block (15). There are two fixing blocks (15), which are respectively connected to the mounting block (12). A sliding rod (16) and a threaded rod (17) are fixedly installed between the two fixing blocks (15). One end of the threaded rod (17) is connected to a drive motor (18) located on one side of the fixing block (15).

6. The automatic rotating device for pressure-sensitive scrapers according to claim 5, characterized in that: The cleaning scraper (14) is located on the outer surface of the front end of the scraper (6), and its upper end is sleeved on the outer wall of the slide rod (16) and the threaded rod (17). The cleaning scraper (14) has a built-in resistance heating wire.

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