A rubber mixing mill with a rubber scraping mechanism

Abstract

The utility model discloses a kind of glue scraping mechanisms of rubber mixing mill, including base, two compression rollers are rotatably connected between the two sides of base, mobile mechanism is provided at the place close to two compression rollers of base, mobile mechanism is connected with mounting plate, mounting plate is below two compression rollers, the two sides of mounting plate are respectively hinged with a pair of rotating rods, the length of two rotating rods of same pair is same, two compression rollers are between two pairs of rotating rods, further include two scrapers, each scraper is respectively hinged with the end of two rotating rods of same pair, two compression rollers are between two scrapers, driving mechanism is provided on mounting plate, one of each pair of rotating rod is connected with driving mechanism.The utility model drives two scrapers to contact with two compression rollers respectively by driving mechanism, mobile mechanism drives mounting plate and the scraper on mounting plate upper portion to move, while moving, two compression rollers rotate, so that scraper scrapes glue of different parts of compression roller, reduce work intensity, and can simultaneously scrape glue to two compression rollers.

Description

Technical Field

[0001] This utility model relates to the field of rubber product manufacturing and processing, and in particular to a scraping mechanism for a rubber mixing machine. Background Technology

[0002] Rubber mixing mills are core equipment in the rubber industry, mainly used for plasticizing, mixing, and molding raw rubber or rubber compounds. Their core function is to alter the physicochemical properties of rubber through the synergistic effect of mechanical shear force, heat, and pressure. After the rubber mixing mill has finished mixing the rubber, some rubber will remain on the surfaces of the two pressure rollers. This residue needs to be scraped off manually. The worker holds a scraper and moves it along the axial direction of the roller, allowing the roller to rotate and scrape different areas of the roller surface. (Because the thickness of the residual rubber is less than the distance between the two rollers, they are not squeezed during rotation and thus remain attached.) The worker also needs to continuously turn the rubber during mixing and scrape it again after mixing, increasing workload and reducing efficiency over time. Furthermore, manual scraping can only be done on one roller at a time, which is cumbersome. Utility Model Content

[0003] The purpose of this invention is to provide a scraping mechanism for a rubber mixing mill to solve the above-mentioned problems.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A scraping mechanism for a rubber mixing mill includes a base with two pressure rollers rotatably connected between its two sides. The base has a moving mechanism near the two pressure rollers, connected to a mounting plate located below the two pressure rollers. A pair of rotating rods are hinged to each side of the mounting plate, with the two rods of the same pair having the same length. The two pressure rollers are located between the two pairs of rotating rods. The mill also includes two scrapers, each hinged to the end of one of the two rotating rods of the same pair. The two pressure rollers are located between the two scrapers. A driving mechanism is provided on the mounting plate, with one of the rotating rods from each pair connected to the driving mechanism.

[0005] Using the above technical solution, the driving mechanism drives one of the rotating rods in each pair to rotate. The rotating rod drives the other rotating rod in the same pair to rotate via a scraper, thereby causing both pairs of rotating rods to rotate. At the same time, the rotation of the rotating rods drives the scraper to rotate, and the angle of the scraper remains constant during the rotation. The scraper approaches the pressure roller, so that the two scrapers contact the adhesive on the two pressure rollers respectively. The moving mechanism drives the mounting plate to move along the axial direction of the pressure roller. The mounting plate drives the driving mechanism and the two pairs of rotating rods on it to move. Each pair of rotating rods drives the scraper connected to it to move along the axial direction of the pressure roller. While the scraper moves, the two pressure rollers rotate. The moving scraper scrapes off the adhesive on the surface of the pressure roller. The rotation of the pressure roller causes the scraper to scrape off the adhesive from different parts of the pressure roller, reducing the labor intensity and enabling simultaneous scraping of adhesive from both pressure rollers.

[0006] Preferably, the drive mechanism includes a transmission component, a bidirectional lead screw, and a motor. The bidirectional lead screw is horizontally rotatably connected to the mounting plate. The motor is fixedly connected to the mounting plate, and the output shaft of the motor is fixedly connected to the end of the bidirectional lead screw. The two sliders of the bidirectional lead screw are respectively opposite to two pairs of rotating rods. A transmission component is provided between each slider of the bidirectional lead screw and one of the pairs of rotating rods opposite to it.

[0007] Using the above technical solution, the motor drives the bidirectional lead screw to rotate, and its two sliders move closer to or further away from each other. The moving bidirectional lead screw slider drives one of the pair of rotating rods opposite it to rotate through the transmission component. The rotating rod then drives the other rotating rod of the same pair to rotate through the scraper. The two rotating rods drive the scraper to rotate, and the scraper moves closer to or further away from the pressure roller.

[0008] Preferably, the transmission component is a connecting rod, and a connecting rod is hinged between each slider of the bidirectional lead screw and one of the pairs of rotating rods opposite to it, with the two ends of the connecting rod being hinged to the slider and the rotating rod of the bidirectional lead screw, respectively.

[0009] Using the above technical solution, the bidirectional lead screw rotates and its slider moves. The moving slider drives one of the pair of rotating rods opposite the slider to rotate through the connecting rod that is hinged to it.

[0010] Preferably, the moving mechanism includes a lead screw, a second motor, and a guide rod. The lead screw and the guide rod are located between the two sides of the base. The two ends of the lead screw are rotatably connected to the two sides of the base, and the two ends of the guide rod are fixedly connected to the two sides of the base. One side of the mounting plate is fixedly connected to the lead screw slider, and the guide rod passes through the other side of the mounting plate and is slidably connected to the mounting plate.

[0011] Using the above technical solution, the second motor drives the lead screw to rotate, the lead screw slider drives the mounting plate to move along the axial direction of the pressure roller, the mounting plate drives the drive mechanism and two pairs of rotating rods on its upper part to move, and each pair of rotating rods drives the scraper connected to it to move along the axial direction of the pressure roller.

[0012] Preferably, the scraper is made of nylon.

[0013] The above technical solution is adopted to prevent the scraper from scratching the pressure roller. Attached Figure Description

[0014] Figure 1 This is the overall intent of the embodiment; Figure 2 This is a front view of an embodiment; Figure 3 This is a top view of an embodiment; Figure 4 This is a sectional view along line AA; Figure 5 This is an overall schematic diagram from another perspective of the embodiment; Figure 6 This is a schematic diagram showing the connection between the scraper and the mounting plate.

[0015] Reference numerals in the attached diagram: 1. Base; 2. Pressure roller; 3. Mounting plate; 4. Rotating rod; 5. Scraper; 6. Bidirectional lead screw; 7. Motor 1; 8. Connecting rod; 9. Lead screw; 10. Motor 2; 11. Guide rod. Detailed Implementation

[0016] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

[0017] See Figure 1 , Figure 3 and Figure 5A scraping mechanism for a rubber mixing mill includes a base 1 with two pressure rollers 2 rotatably connected to its upper part. A moving mechanism is located on the base 1 near the two pressure rollers 2. The moving mechanism includes a lead screw 9, a second motor 10, and a guide rod 11. The lead screw 9 and guide rod 11 are located between two sides of the base 1. The two ends of the lead screw 9 are rotatably connected to the two sides of the base 1, and the lead screw 9 is a one-way lead screw. The second motor 10 is fixedly connected to the base 1, and the output shaft of the second motor 10 is fixedly connected to the end of the lead screw 9. The two ends of the guide rod 11 are fixedly connected to the two sides of the base 1, and the two pressure rollers 2 are located between the guide rod 11 and the lead screw 9. A mounting plate 3 is fixedly connected to the slider of the lead screw 9, and the guide rod 11 passes through the other side of the mounting plate 3, and the guide rod 11 is slidably connected to the mounting plate 3.

[0018] See Figure 1 , Figure 2 , Figure 4 and Figure 6 A pair of rotating rods 4 are hinged to each side of the mounting plate 3. The two rotating rods 4 in the same pair are of the same length. Two pressure rollers 2 are located between the two pairs of rotating rods 4. The mounting plate 3 also includes two nylon scrapers 5, each scraper 5 being hinged to the end of one of the two rotating rods 4 in the same pair. A horizontal double-acting screw 6 is rotatably connected to the mounting plate 3. A motor 7 is fixedly connected to the mounting plate 3, and the output shaft of the motor 7 is fixedly connected to the end of the double-acting screw 6. Two sliders of the double-acting screw 6 are respectively opposite to the two pairs of rotating rods 4. A connecting rod 8 is hinged between each slider of the double-acting screw 6 and one of the opposing rotating rods 4. The two ends of the connecting rod 8 are respectively hinged to the slider and the rotating rod 4 of the double-acting screw 6.

[0019] Working principle: Motor 1 (7) drives the bidirectional lead screw 6 to rotate. The two sliders of the bidirectional lead screw 6 move and approach each other. The moving sliders of the bidirectional lead screw 6 drive one of the pair of rotating rods 4 opposite to the slider to rotate via the connecting rod 8. The rotating rod 4 then drives the other rotating rod 4 in the same pair to rotate via the scraper 5, thus causing both pairs of rotating rods 4 to rotate. At the same time, the rotation of the rotating rod 4 drives the scraper 5 to rotate, and the angle of the scraper 5 remains constant during the rotation. The scraper 5 approaches the pressure roller 2, so that the two scrapers 5 contact the rubber material on the two pressure rollers 2 respectively. Motor 2 (10) drives the lead screw 9 to rotate. The slider of the lead screw 9 drives the mounting plate 3 to move along the axial direction of the pressure roller 2. The mounting plate 3 drives the bidirectional lead screw 6 and the two pairs of rotating rods 4 on its upper part to move. Each pair of rotating rods 4 drives its connected scraper 5 to move along the axial direction of the pressure roller 2. As the scraper 5 moves, the two pressure rollers 2 rotate. The moving scraper 5 removes the adhesive from the surface of the pressure rollers 2, and the rotation of the pressure rollers 2 causes the scraper 5 to remove adhesive from different parts of the pressure rollers 2. Then, the bidirectional lead screw 6 rotates in the opposite direction, and its two sliders move away from each other. Each slider of the bidirectional lead screw 6 drives the rotating rod 4 to rotate back through the connecting rod 8. The rotating rotating rod 4 drives the other rotating rod 4 in the same pair to rotate, and the rotating pair of rotating rods 4 drives the scraper 5 away from the pressure rollers 2. This eliminates the need for manual adhesive scraping, reduces labor intensity, and allows for simultaneous adhesive scraping of both pressure rollers 2.

Claims

1. A scraping mechanism for a rubber mixing mill, comprising a base (1), wherein two pressure rollers (2) are rotatably connected between the two sides of the base (1), characterized in that, The base (1) is provided with a moving mechanism near the two pressure rollers (2). The moving mechanism is connected to a mounting plate (3). The mounting plate (3) is located below the two pressure rollers (2). A pair of rotating rods (4) are hinged to both sides of the mounting plate (3). The two rotating rods (4) of the same pair are of the same length. The two pressure rollers (2) are located between the two pairs of rotating rods (4). The mounting plate (3) also includes two scrapers (5). Each scraper (5) is hinged to the end of the two rotating rods (4) of the same pair. The two pressure rollers (2) are located between the two scrapers (5). The mounting plate (3) is provided with a driving mechanism. One of the rotating rods (4) of each pair is connected to the driving mechanism.

2. The scraping mechanism of a rubber mixing mill according to claim 1, characterized in that, The drive mechanism includes a transmission component, a bidirectional lead screw (6), and a motor (7). The bidirectional lead screw (6) is horizontally rotatably connected to the upper part of the mounting plate (3). The motor (7) is fixedly connected to the mounting plate (3). The output shaft of the motor (7) is fixedly connected to the end of the bidirectional lead screw (6). The two sliders of the bidirectional lead screw (6) are respectively opposite to two pairs of rotating rods (4). A transmission component is provided between each slider of the bidirectional lead screw (6) and one of the pairs of rotating rods (4) opposite to it.

3. The scraping mechanism of a rubber mixing mill according to claim 2, characterized in that, The transmission component is a connecting rod (8). Each slider of the bidirectional lead screw (6) and one of the pairs of rotating rods (4) opposite to it are hinged to the connecting rod (8). The two ends of the connecting rod (8) are respectively hinged to the slider of the bidirectional lead screw (6) and the rotating rod (4).

4. The scraping mechanism of a rubber mixing mill according to claim 1, characterized in that, The moving mechanism includes a lead screw (9), a second motor (10), and a guide rod (11). The lead screw (9) and the guide rod (11) are located between the two sides of the base (1). The two ends of the lead screw (9) are rotatably connected to the two sides of the base (1), and the two ends of the guide rod (11) are fixedly connected to the two sides of the base (1). One side of the mounting plate (3) is fixedly connected to the slider of the lead screw (9), and the guide rod (11) passes through the other side of the mounting plate (3). The guide rod (11) is slidably connected to the mounting plate (3).

5. The scraping mechanism of a rubber mixing mill according to claim 1, characterized in that, The scraper (5) is made of nylon.

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