Hot pressing device for insulation paper production

Abstract

The utility model relates to the technical field of insulation paper production equipment, and discloses a hot pressing device for insulation paper production, which comprises a support, an upper pressing roller and a lower pressing roller are movably mounted on the inner side of the support, cleaning devices are arranged on the outer wall of the upper pressing roller and the outer wall of the lower pressing roller, two groups of cleaning devices are fixedly mounted on the inner side of the support, and the upper pressing roller and the lower pressing roller are fixedly mounted on the support. Each cleaning device comprises a scraping plate and a scrap storage groove, when the device is used, the scraping plates in the two sets of cleaning devices can make contact with the outer wall of the upper pressing roller and the outer wall of the lower pressing roller correspondingly, and when the upper pressing roller and the lower pressing roller rotate, paper scraps attached to the surfaces of the upper pressing roller and the lower pressing roller can be scraped off through the corresponding scraping plates; and scraped scraps can fall into the scrap storage groove at the lower end of the scraper from the notch of the scraper, so that the influence of paper scrap accumulation on the operation of the upper compression roller and the lower compression roller and the quality of the insulation paper is avoided, the defective rate caused by the fact that the paper scraps scratch the surface of the insulation paper is reduced, and the qualified rate of products is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of insulating paper production equipment, specifically a hot pressing device for insulating paper production. Background Technology

[0002] Hot pressing equipment in insulating paper production uses two sets of pressure rollers for heating. It is a common and efficient hot pressing method. Under the combined action of heat and pressure, the insulating paper passes between the two sets of pressure rollers. The heating system heats the pressure rollers until their surfaces reach a set temperature. At the same time, the pressure regulating system maintains a suitable pressure between the two sets of pressure rollers according to process requirements. Driven by the rotation of the pressure rollers, the internal fibers and resins of the insulating paper undergo physical and chemical changes under the combined action of heat and pressure, realizing the hot pressing and forming of the insulating paper. In the production process of insulating paper, hot pressing is an extremely critical step, and the performance of the hot pressing equipment directly affects the quality and production efficiency of the insulating paper.

[0003] However, commonly used hot pressing devices have some drawbacks. Firstly, during the hot pressing process, paper scraps easily adhere to the surface of the pressure rollers. As production continues, these scraps accumulate, not only interfering with the normal operation of the rollers and causing uneven pressure distribution, but also potentially scratching the surface of the insulating paper, reducing the product's yield. Furthermore, frequent machine stops are required to clean the paper scraps from the rollers, significantly reducing production efficiency and increasing costs. Secondly, the two pressure rollers are usually driven by different motors. Due to differences in motor performance and control precision, it is difficult to ensure that the speed and torque of the two rollers are completely identical. This results in uneven pressure on the insulating paper during hot pressing, easily leading to quality problems such as inconsistent thickness and density, seriously affecting the stability and reliability of the product.

[0004] To address the aforementioned problems, this application proposes a hot pressing device for producing insulating paper. Utility Model Content

[0005] The purpose of this utility model is to provide a hot pressing device for producing insulating paper, so as to solve the problems mentioned in the background art, such as the easy adhesion of paper scraps on the surface of the pressure roller and the uneven pressure on the insulating paper caused by the inconsistent speed and torque of the pressure roller.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot pressing device for producing insulating paper, comprising a support frame, an upper pressure roller and a lower pressure roller movably mounted on the inner side of the support frame, and a cleaning device provided on the outer wall of the upper pressure roller and the lower pressure roller, wherein there are two sets of cleaning devices and they are fixedly installed on the inner side of the support frame, and the cleaning device includes a scraper and a chip storage trough, wherein the scraper is located at the upper end of the chip storage trough and is fixedly connected by square bars.

[0007] Preferably, the scraper has different thicknesses on both sides, and a notch is provided on the narrower side.

[0008] Preferably, a mounting bracket is fixedly connected to one outer surface of the chip storage trough, and a chip discharge port is provided on the other side. The chip discharge port is connected to a chip discharge pipe, and a blower is connected to the other end of the chip discharge pipe.

[0009] Preferably, a first gear, a transmission gear, a drive gear, and a second gear are sequentially mounted on one outer surface of the bracket from top to bottom, and adjacent gears mesh with each other.

[0010] Preferably, the first gear and the second gear are respectively connected to the rotating shafts of the upper pressure roller and the lower pressure roller.

[0011] Preferably, one end of the drive gear is fixedly connected to a drive motor.

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

[0013] This invention features two sets of cleaning devices with scrapers that contact the outer walls of the upper and lower pressure rollers, respectively. When the upper and lower pressure rollers rotate, the corresponding scrapers can scrape off the paper scraps adhering to their surfaces. The scraped scrapes fall from the notches of the scrapers into the scraper storage trough at their lower ends, thus avoiding the impact of paper scrap accumulation on the operation of the upper and lower pressure rollers and the quality of the insulating paper. This reduces the defect rate caused by paper scraps scratching the surface of the insulating paper and improves the product qualification rate.

[0014] This invention eliminates the problem of uneven pressure caused by motor differences by simultaneously driving the upper and lower pressure rollers with a drive motor, ensuring that the insulating paper is subjected to uniform pressure during hot pressing. This effectively improves the thickness uniformity and density stability of the insulating paper, thereby enhancing product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a hot pressing device for producing insulating paper according to this utility model;

[0016] Figure 2 This is a schematic diagram of the back structure of a hot pressing device for producing insulating paper according to this utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the cleaning device in a hot pressing device for producing insulating paper according to this utility model;

[0018] Figure 4 This is a schematic diagram showing the connection relationship between the cleaning device and the chip removal pipe in a hot pressing device for producing insulating paper according to this utility model.

[0019] Figure 5This is a schematic diagram of the support structure in a hot pressing device for producing insulating paper according to this utility model;

[0020] Figure 6 This is a schematic diagram of the drive gear in a hot pressing device for producing insulating paper according to this utility model;

[0021] In the diagram: 1. Support; 2. Upper pressure roller; 3. Lower pressure roller; 4. Cleaning device; 5. Scraper; 6. Chip storage trough; 7. Square bar; 8. Mounting frame; 9. Chip discharge port; 10. Chip discharge pipe; 11. Blower; 12. First gear; 13. Transmission gear; 14. Drive gear; 15. Second gear; 16. 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 1-6 This utility model provides a technical solution: a hot pressing device for producing insulating paper, including a support 1, an upper pressure roller 2 and a lower pressure roller 3 movably installed on the inner side of the support 1, and a cleaning device 4 provided on the outer wall of the upper pressure roller 2 and the lower pressure roller 3. The cleaning device 4 consists of two sets and is fixedly installed on the inner side of the support 1. The cleaning device 4 includes a scraper 5 and a chip storage trough 6. The scraper 5 is located at the upper end of the chip storage trough 6 and is fixedly connected by a square strip 7. The two sides of the scraper 5 have different thicknesses, and a notch is opened on the narrower side. A mounting frame 8 is fixedly connected to the outer surface of one side of the chip storage trough 6, and a chip discharge port 9 is provided on the other side. The chip discharge port 9 is connected to a chip discharge pipe 10, and the other end of the chip discharge pipe 10 is connected to a blower 11. Both the upper pressure roller 2 and the lower pressure roller 3 are equipped with heating devices inside, which allows them to apply stable pressure to the passing insulating paper while simultaneously heating it during rotation. The chip collection trough 6 is fixed to the inside of the bracket 1 by a mounting bracket 8, which is secured with bolts for easy disassembly and facilitates future maintenance and replacement of the cleaning device 4. The upper end face of the scraper 5 is inclined, allowing the paper scraps scraped off at its upper end to slide down to the notch of the scraper 5 and then fall into the chip collection trough 6, preventing the accumulation of paper scraps at the upper end of the scraper 5. The blower 11 can extract the accumulated paper scraps in the chip collection trough 6 through the chip discharge pipe 10 and the chip discharge port 9, preventing excessive accumulation of paper scraps in the chip collection trough 6 from affecting its normal use. When the upper pressure roller 2 and the lower pressure roller 3 rotate, the corresponding scrapers 5 scrape off the paper scraps adhering to their surfaces, preventing the accumulation of paper scraps from affecting the operation of the upper pressure roller 2 and the lower pressure roller 3 and the quality of the insulating paper, reducing the defect rate caused by paper scraping the surface of the insulating paper, and improving the product qualification rate.

[0024] In this embodiment, as Figure 5 and Figure 6 As shown, a first gear 12, a transmission gear 13, a drive gear 14, and a second gear 15 are sequentially mounted from top to bottom on one outer surface of the bracket 1, with adjacent gears meshing with each other. The first gear 12 and the second gear 15 are respectively connected to the rotating shafts of the upper pressure roller 2 and the lower pressure roller 3. A drive motor 16 is fixedly connected to one end of the drive gear 14. The drive motor 16 drives the drive gear 14 to rotate forward. When the drive gear 14 rotates forward, it drives the transmission gear 13 and the second gear 15 to rotate in reverse. Then, the transmission gear 13 rotates in reverse, driving the first gear 12 to rotate forward. Finally, the first gear 12 and the second gear 15 drive the upper pressure roller 2 and the lower pressure roller 3 to rotate relative to each other. This achieves the use of one drive motor to drive the rotation of two pressure rollers, eliminating the problem of uneven pressure caused by motor differences. This ensures that the insulating paper is subjected to uniform pressure during the hot pressing process, effectively improving the thickness uniformity and density stability of the insulating paper, and enhancing product quality.

[0025] Working principle:

[0026] When using a hot pressing device for insulating paper production, the drive motor 16 is first started to drive the drive gear 14 forward. When the drive gear 14 is forward, it drives the transmission gear 13 and the second gear 15 to reverse. Then, the transmission gear 13 reverses and drives the first gear 12 to rotate forward. Finally, the first gear 12 and the second gear 15 drive the upper pressure roller 2 and the lower pressure roller 3 to rotate relative to each other, so that the insulating paper can be pressed and heated, thereby removing the moisture inside and improving the strength of the insulating paper. Moreover, by using one motor to drive the two pressure rollers to rotate, the problem of uneven pressure caused by motor differences is eliminated, so that the insulating paper is subjected to uniform pressure during the hot pressing process, which effectively improves the thickness uniformity and density stability of the insulating paper and improves the product quality. The scrapers 5 in the two sets of cleaning devices 4 contact the outer walls of the upper pressure roller 2 and the lower pressure roller 3, respectively. When the upper pressure roller 2 and the lower pressure roller 3 rotate, the scrapers 5 can scrape off the paper scraps adhering to their surfaces. The scraped scrapes fall from the notches of the scrapers 5 into the scraper trough 6 at their lower ends, avoiding the impact of paper scrap accumulation on the operation of the upper pressure roller 2 and the lower pressure roller 3 and the quality of the insulating paper. This reduces the defect rate caused by paper scraping the surface of the insulating paper and improves the product qualification rate. Finally, the blower 11 uses the scraper pipe 10 to extract the paper scraps accumulated in the scraper trough 6, avoiding the need for manual cleaning of the scraper trough 6.

[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 hot pressing device for producing insulating paper, comprising a support frame (1), characterized in that: The upper pressure roller (2) and the lower pressure roller (3) are movably installed on the inner side of the bracket (1). The outer walls of the upper pressure roller (2) and the lower pressure roller (3) are provided with cleaning devices (4). There are two sets of cleaning devices (4) and they are fixedly installed on the inner side of the bracket (1). The cleaning device (4) includes a scraper (5) and a chip storage trough (6). The scraper (5) is located at the upper end of the chip storage trough (6) and is fixedly connected by a square bar (7).

2. The hot pressing device for producing insulating paper according to claim 1, characterized in that: The scraper (5) has different thicknesses on both sides, and a notch is provided on the narrower side.

3. The hot pressing device for producing insulating paper according to claim 1, characterized in that: A mounting bracket (8) is fixedly connected to one side of the outer surface of the chip storage tank (6), and a chip discharge port (9) is provided on the other side. The chip discharge port (9) is connected to the chip discharge pipe (10), and a blower (11) is connected to the other end of the chip discharge pipe (10).

4. The hot pressing device for producing insulating paper according to claim 1, characterized in that: The bracket (1) has a first gear (12), a transmission gear (13), a drive gear (14) and a second gear (15) installed sequentially from top to bottom on one side of its outer surface, and the adjacent gears mesh with each other.

5. A hot pressing device for producing insulating paper according to claim 4, characterized in that: The first gear (12) and the second gear (15) are respectively connected to the rotating shafts of the upper pressure roller (2) and the lower pressure roller (3).

6. The hot pressing device for producing insulating paper according to claim 4, characterized in that: One end of the drive gear (14) is fixedly connected to a drive motor (16).

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