A rubber mixer for producing automotive rubber sealing strips

Abstract

The invention discloses a rubber mixer for producing automobile rubber sealing strips, comprising an open mixer, wherein rollers are arranged inside the open mixer, and a colloid rolling mechanism is arranged inside the open mixer, and relates to the field of rubber technology. By arranging the colloid rolling mechanism, along with the inclined surfaces in a curling plate A and a curling plate B, both sides of the colloid begin to be rolled toward the center of the rollers, and then the colloid rolled to the middle of the rollers will be rolled together, and the clumped colloid will be rolled by two rollers to spread out the clumped colloid again, so as to realize automatic curling and re-grinding of the colloid after being flattened, automatically uniformly and fully mixing various rubber raw materials, and avoiding the need for workers to frequently manually knead the colloid ground into sheets by the rollers, which may cause the hands to accidentally touch the space between the two rollers and cause safety hazards.

Description

Technical Field

[0001] The invention relates to the technical field of rubber, in particular to a rubber mixing machine for producing automobile rubber sealing strips. Background Art

[0002] Mixing machine is a rubber mixing equipment used to mix raw rubber and compounding agents. It can also plasticize natural rubber. Mixing machine is divided into two types: open type rubber mixing machine (referred to as open mixing machine) and closed type rubber mixing machine (referred to as closed mixing machine). When the rubber material is thinly passed on the open mixing machine, the compounding agent is added in the gap between the mixing rollers.

[0003] A rubber mixing machine described in the patent application with publication number CN212147087U comprises a base, a mixing device and a spreading device, wherein the base is a rectangular hollow structure with an upper portion and one end open, and a fixed plate is arranged on the side of the base, a telescopic rod connected to the spreading device is arranged on the fixed plate, the spreading device comprises a vibration plate, a vibration motor, a feed hopper and a screening plate, the fixed plate is connected to the vibration plate through a vibration motor, and a feed hopper is arranged on the vibration plate; the spreading device is located directly above the mixing device, the spreading device comprises a slider, a reducer, a first drive motor and a pneumatic cylinder, the slider is slidably arranged in a slide groove of the side wall of the base, and a first mixing roller is arranged at one end of the slider, and the other end of the slider is connected to the first drive motor through a reducer;

[0004] At present, when various raw materials are mixed into rubber by an open mixer in the production of automobile rubber strips, two rollers are used to flatten the different raw materials put thereon so that they are fully combined, and after the combination, the flattened sheet colloid is manually kneaded together again by the staff, and put into the two rollers to flatten again to combine the internal raw materials. In this working state, the staff needs to stay in the mixer at all times, which has great work restrictions. In addition, due to fatigue after working for a long time, the staff's hands are easily involved in the two rollers due to operational errors, which causes great safety hazards. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a rubber mixing machine for producing automotive rubber sealing strips, thereby achieving the purpose of solving the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A rubber mixer for producing automotive rubber sealing strips, comprising an open mixer, a roller is arranged inside the open mixer, and a colloid rolling mechanism is arranged inside the open mixer;

[0007] The colloid rolling mechanism comprises:

[0008] A sliding sleeve, one side of which is an inclined surface, the sliding sleeve is sleeved on the outer wall of the roller and is slidably connected to the outer wall of the roller, one side of the sliding sleeve is fixedly connected to an electric telescopic rod, one end of the electric telescopic rod is fixedly connected to the inner wall of the open mixer, and the sliding sleeve is used to be pushed by the electric telescopic rod to move left and right on the outer wall of the roller to change its position;

[0009] The curling plate A is an arc-shaped plate structure, the outer wall of the curling plate A is fixedly connected with a thin steel wire, the inner wall of the curling plate A is slidably connected with a curling plate B, the outer wall of the curling plate B is fixedly connected with another thin steel wire, and the curling plate A is used to guide the thin colloid to curl into a roll.

[0010] Preferably, the outer walls of the curling plates A and B are provided with grooves, and the inner walls of the grooves are rotatably connected to a rotating wheel.

[0011] Preferably, one side of the curling plate A is fixedly connected to an arc-shaped bar, an outer wall of the arc-shaped bar is slidably connected to a telescopic rod, and one end of the telescopic rod is fixedly connected to a fixed plate.

[0012] Preferably, the fixing plate is fixedly connected to the outer wall of the curling plate B, both ends of the telescopic rod are fixedly connected to springs, and one side of the curling plate B is fixedly connected to a connecting block.

[0013] Preferably, the curled plate A and the curled plate B are both arc-shaped plate structures, and the curvature of the curled plate A and the curled plate B are the same.

[0014] Preferably, the bottom of the curling plate A contacts the outer wall of the roller, and the bottom of the curling plate B contacts the outer wall of the roller.

[0015] Preferably, an opening and closing mechanism is provided on one side of the curling plate A, and the opening and closing mechanism comprises a threaded rod, an outer wall of the threaded rod is threadedly connected to an internal threaded sleeve, and an outer wall of the internal threaded sleeve is fixedly connected to the opening and closing plate.

[0016] Preferably, the top of the connecting block is fixedly connected to a limiting block, one end of the internal threaded sleeve contacts the surface of the limiting block, the inner wall of the internal threaded sleeve is fixedly connected to one end of the threaded rod through a built-in spring, and the opening and closing plate is an arc-shaped plate structure.

[0017] The present invention provides a rubber mixing machine for producing automobile rubber sealing strips. It has the following beneficial effects:

[0018] 1. The present invention sets a colloid rolling mechanism, and along with the inclined surfaces in the curling plates A and B, both sides of the colloid begin to roll toward the center of the roller, and then the colloid rolled to the middle of the roller will be rolled together, and the two rollers will roll the clumped colloid to spread it out again, so as to realize automatic curling and re-grinding of the colloid after it is flattened, automatically and evenly and fully mix various rubber raw materials, and avoid the need for workers to frequently manually knead the colloid ground into sheets by the rollers, which may cause the hands to accidentally touch the space between the two rollers and cause safety hazards.

[0019] 2. The present invention provides a colloid rolling mechanism. When the thin colloid is rolled into a ball on the curling plates A and B, it will continuously contact the fine steel wires on the curling plates A and B. The colloid is continuously cut by the very fine steel wires to reduce the problem of the colloid being blocked and unable to move when it is rolled into a ball. The cut segments are easier to be pushed by the curled colloid at the rear and stuffed into the roller.

[0020] 3. The present invention sets up a colloid rolling mechanism, and applies lateral pushing force to the flattened colloid through the sliding sleeves on both sides, so that the colloid is slightly wrinkled, and part of the bottom is not in contact with the roller, thereby reducing the adhesion area, making it easier for the thin colloid to break away from the roller and be rolled into the curling plates A and B.

[0021] 4. The present invention provides a colloid rolling mechanism, which slides rapidly as the rotating wheel is pushed and rotated, and the colloid cannot contact the surface of the curling plate B because of the opening of the rotating wheel, so as to reduce the friction between the colloid and the surface of the curling plate B when curling, so that the sheet colloid can be curled into a ball more smoothly and stably transported to the middle of the two curling plates B.

[0022] 5. The present invention sets a colloid rolling mechanism and adjusts the position of the sliding sleeve. When the colloid on the roller passes through the inclined surface on one side of the sliding sleeve, the colloid adhered to the roller is pushed up to the middle of the roller, so that the colloid is slightly wrinkled, and part of the bottom is not in contact with the roller, thereby reducing the adhesion area and improving the stability of the colloid from the roller to be rolled into the curling plate A and the curling plate B.

[0023] 6. The present invention provides a colloid rolling mechanism so that the size of the gap between the two curling plates B does not change, thereby realizing rubber refining work under different rubber amounts and different roller spacings. The colloid curled into a roll is compressed as much as possible to the size of the gap between the two curling plates B and then rolled in by the rollers, making the colloid mixing more uniform and stable, and convenient for staff to observe and control.

[0024] 7. The present invention is provided with an opening and closing mechanism. In this state, the roll entering the curling plate B is relatively large. At this time, the opening and closing plate is slightly lifted upward. By utilizing the inclined surface of the opening and closing plate, when a relatively large roll is rolled into the interior by the roller, it will be guided and diverted by the opening and closing plate, thereby preventing the roll from being too large and too high and dumping to other positions, thereby maintaining the stable guiding effect of the roll when the roll is relatively large.

[0025] 8. The present invention is provided with an opening and closing mechanism. When the amount of rubber is small, the opening and closing plate is in a downward pressing shape, which exerts pressure on the curled colloid, so that it enters the two rollers for flattening and mixing rubber faster and more efficiently through pressure. The corresponding effect can be achieved by adapting to different working conditions. There is no need for the staff to constantly knead the flattened colloid manually. While improving work efficiency, it also avoids the safety hazards caused by manual operation of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 The structure of the colloid rolling mechanism of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 3 The structure of the colloid rolling mechanism of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 4 The structure of the colloid rolling mechanism of the present invention is shown in FIG. Figure 3 ;

[0030] Figure 5 The structure of the colloid rolling mechanism of the present invention is shown in FIG. Figure 4 ;

[0031] Figure 6 The structure of the colloid rolling mechanism of the present invention is shown in FIG. Figure 5 ;

[0032] Figure 7 It is a schematic diagram of the top view of the curling plate A of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the curling plate B of the present invention;

[0034] Fig. 9 For the present invention Figure 8 A magnified image of point A;

[0035] Fig.10 The motion diagram of the colloid rolling mechanism of the present invention is shown in FIG. Figure 1 ;

[0036] Fig.11The motion diagram of the colloid rolling mechanism of the present invention is shown in FIG. Figure 2 ;

[0037] Fig.12 For the present invention Figure 2 The enlarged view of point B;

[0038] Fig.13 It is a motion schematic diagram of the opening and closing mechanism of the present invention.

[0039] In the figure: 1 open mixer, 2 roller, 3 colloid rolling mechanism, 301 sliding sleeve, 302 electric telescopic rod, 303 curling plate A, 304 fine steel wire, 305 curling plate B, 306 telescopic rod, 307 arc strip, 308 spring, 310 groove, 311 rotating wheel, 312 connecting block, 313 fixing plate, 4 opening and closing mechanism, 401 threaded rod, 402 internal threaded sleeve, 403 opening and closing plate, 404 limit block. DETAILED DESCRIPTION

[0040] Example 1: Please refer to Figure 1-4 , the present invention provides a technical solution: a rubber mixer for producing automobile rubber sealing strips, comprising an open mixer 1, a roller 2 is arranged inside the open mixer 1, and a colloid rolling mechanism 3 is arranged inside the open mixer 1;

[0041] The colloid rolling mechanism 3 comprises:

[0042] The sliding sleeve 301 has an inclined surface on one side. The sliding sleeve 301 is sleeved on the outer wall of the roller 2 and is slidably connected to the outer wall of the roller 2. An electric telescopic rod 302 is fixedly connected to one side of the sliding sleeve 301. One end of the electric telescopic rod 302 is fixedly connected to the inner wall of the open mixer 1. The sliding sleeve 301 is used to be pushed by the electric telescopic rod 302 to move left and right on the outer wall of the roller 2 to change its position.

[0043] The curling plate A303 is an arc-shaped plate structure. The outer wall of the curling plate A303 is fixedly connected with a thin steel wire 304. The inner wall of the curling plate A303 is slidably connected with a curling plate B305. The outer wall of the curling plate B305 is fixedly connected with another thin steel wire 304. The curling plate A303 is used to guide the thin colloid to curl into a roll;

[0044] Various raw materials and compounding agents for rubber mixing are put between two rollers 2, and then the open mixer 1 is started to control the two rollers 2 to rotate to roll the rubber raw materials on the two rollers 2, and the rolled mixed colloid adheres to the outer wall of the roller 2 and rotates and returns to the original position until all the rubber raw materials on the rollers 2 are evenly rolled and rolled on the rollers 2 and evenly flattened;

[0045] After the mixed colloid is evenly spread on roller 2, the colloid spread on roller 2 adheres to roller 2 and rotates continuously with roller 2, while the bottom of curling plate A303 and curling plate B305 on the inner wall of curling plate A303 contacts the surface of roller 2, so that the colloid adhered to roller 2 and spread out will begin to contact the bottom of curling plate A303 and curling plate B305 as roller 2 rotates, and after contact, as roller 2 continues to rotate, the flat thin glue will be pushed into the arc surface on curling plate A303 and curling plate B305, and as the arc surface inside curling plate A303 and curling plate B305 begins to curl continuously, the flat colloid is automatically rolled up, and because curling plate A303 and curling plate B305 are Plate B305 is an inclined arc surface, so when the colloid enters the curling plate A303 and the curling plate B305 and starts to roll up, the two sides of the colloid will start to roll toward the center of the roller 2 along the inclined surfaces of the curling plate A303 and the curling plate B305, and then the colloid rolled to the middle of the roller 2 will be rolled together, and the two rollers 2 will roll the clumped colloid to spread it out again, so as to realize the automatic curling and re-grinding of the colloid after rolling it flat, automatically mix all kinds of rubber raw materials evenly and fully, and avoid the need for the staff to frequently manually knead the colloid ground into sheets by the roller 2, which may cause the hand to accidentally touch the space between the two rollers 2 and cause safety hazards;

[0046] Example 2: Please refer to Figure 1-11 Based on the first embodiment, the present invention provides a technical solution:

[0047] The outer wall of the curling plate A303 and the curling plate B305 is provided with a groove 310, and the inner wall of the groove 310 is rotatably connected to a rotating wheel 311.

[0048] An arc strip 307 is fixedly connected to one side of the curling plate A303 , a telescopic rod 306 is slidably connected to the outer wall of the arc strip 307 , and a fixed plate 313 is fixedly connected to one end of the telescopic rod 306 .

[0049] The fixing plate 313 is fixedly connected to the outer wall of the curling plate B305, the two ends of the telescopic rod 306 are fixedly connected to the springs 308, and one side of the curling plate B305 is fixedly connected to the connecting block 312.

[0050] The curling plate A303 and the curling plate B305 are both arc-shaped plate structures, and the curvature of the curling plate A303 and the curling plate B305 are the same.

[0051] The bottom of the curling plate A303 contacts the outer wall of the roller 2, and the bottom of the curling plate B305 contacts the outer wall of the roller 2;

[0052] When a large amount of agglomerated raw materials are put onto the two rollers 2 at the beginning, the raw material colloid is rolled into a flat and thin shape by the rollers 2 and adheres to the rollers 2. As the rollers 2 rotate, the agglomerated colloid is continuously flattened by the rollers 2 and begins to spread to both sides on the rollers 2. When it just spreads on the rollers 2, it will rotate a circle and contact the curling plate B305, and be scooped up by the curling plate B305 and enter the inside of the curling plate B305. As the inclined arc surface inside the curling plate B305 curls and slides to the center of the rollers 2, it is ground and flattened again. When the distance between the two rollers 2 is adjusted to be closer, more detailed grinding is performed, and the colloid is pressed flatter at this time, and then it will begin to spread to both sides of the rollers 2. At this time, it will not only be scooped up by the curling plate B305, but also by the curling plate A303, so that the curling plate A303 and the curling plate B305 will jointly curl the colloid to the middle and automatically transport it.

[0053] When the thin colloid is rolled into a ball on the curling plate A303 and the curling plate B305, it will continuously contact the thin steel wire 304 on the curling plate A303 and the curling plate B305. The very thin steel wire 304 continuously cuts the colloid to reduce the problem of the colloid being blocked and unable to move when it is rolled into a ball, and the cut segments are easier to be pushed by the curled colloid behind to be inserted into the roller 2.

[0054] When the roller 2 is rolled and mixed with rubber according to the spacing between the rollers 2 and the different amounts of colloid, different widths of colloid will be attached to the roller 2. According to the width of the colloid attached to the roller 2, the electric telescopic rods 302 on both sides are started to push the sleeve 301 to move toward the middle, so that the inclined surface of the side between the two sleeves 301 faces the width of the flattened colloid, so that the colloid is gradually stretched and widened after being flattened by the roller 2. When the roller 2 is rotated and transmitted to the front and upper part of the roller 2, it will contact the inclined surface of the sleeve 301, and the colloid will be pushed to the middle of the roller 2 by the inclined surface of the sleeve 301. The lateral pushing force of the sleeves 301 on both sides on the flattened colloid makes the colloid slightly wrinkled, and part of the bottom does not contact the roller 2, thereby reducing the adhesion area and improving the stability of the roller 2 from rolling into the curling plate A303 and the curling plate B305.

[0055] When the colloid enters the curling plate A303 and the curling plate B305 and starts to roll into a roll along the arc surface, the friction between the colloid and the curling plate B305 is reduced by rotating the rotating wheel 311 inside the groove 310, and the rotating wheel 311 is located in the groove 310, and the groove 310 is bulged out of the rotating wheel 311, so that a concave hollow shape of the rotating wheel 311 is formed between the two grooves 310, so that when the sheet-like glue enters the curling plate B305 for curling, it will contact the rotating wheel 311 first, and slide rapidly as the rotating wheel 311 is pushed and rotated, and the opened rotating wheel 311 cannot contact the surface of the curling plate B305, so that the friction between the colloid and the surface of the curling plate B305 is reduced when the colloid is curled, so that the sheet-like colloid can be curled into a ball more smoothly and stably transported to the middle of the two curling plates B305;

[0056] The two curling plates B305 are pressed against each other by the connecting block 312, so the left and right positions of the curling plates B305 will not be changed by the push of the sliding sleeve 301, and the curling plate A303 will be pushed by the sliding sleeve 301 to continuously sleeve the outside of the curling plate B305, and the curling plate B305 and the inner wall of the curling plate A303 slide relative to each other, so that the curling plate B305 slides into the inside of the curling plate A303. Therefore, no matter where the sliding sleeve 301 is moved, the curling plates B305 are pressed against each other by the connecting block 312, so the size of the gap between the two curling plates B305 will not change, so that the rubber refining work under different rubber amounts and different roller 2 spacings can be realized, and the colloid curled into a roll is compressed into the size of the gap between the two curling plates B305 as much as possible, and then rolled in by the roller 2, so that the colloid can be compressed into the same size under different working conditions, so that the colloid mixing is more uniform and stable, which is convenient for staff to observe and control;

[0057] When the curling plate A303 is pushed and continuously sleeved on the outer wall of the curling plate B305, since the sliding sleeve 301 and the curling plate A303 are pushed to move horizontally along the roller 2, and the curling plate A303 and the curling plate B305 are in an inclined state, when the sliding sleeve 301 moves horizontally, because the two curling plates B305 are against each other, the front and rear positions of the curling plate B305 will gradually shift with the lateral push of the curling plate A303, so the curling plate B305 will slide in the inner wall of the curling plate A303, but the bottom of the curling plate B305 is always in contact with the surface of the roller 2 by its own gravity, and because the curling plate B305 and the curling plate A303 are placed on the roller 2 at an angle, the curling plate A303 is lowered and falls on the top of the roller 2, and the curling plate B305 The lowering of 305 falls on the lower position of the top of the roller 2, so the height of the arc surface of the curling plate B305 is greater than the height of the arc surface of the curling plate A303. Therefore, when the curling plate B305 slides into the inner wall of the curling plate A303, the curling plate B305 will slide adaptively on the inner wall of the curling plate A303 so that the curling plate B305 can slide normally into the curling plate A303. The curling plate B305 is fixedly connected to the fixed plate 313 and the telescopic rod 306, and the telescopic rod 306 is slidably connected to the curling plate A303 through the arc strip 307, so the curling plate B305 will not fall off the curling plate A303, and the telescopic rod 306 and the arc strip 307 allow the curling plate B305 to slide freely horizontally and rotate vertically back and forth in the curling plate A303.

[0058] When the two sliding sleeves 301 are adjusted to move away from each other, the elastic force of the spring 308 continues to push the curling plate B305, so that the two curling plates B305 always press against each other;

[0059] When the amount of glue is large or the distance between the rollers 2 is narrow, resulting in the colloid being spread out widely on the rollers 2, the two sliding sleeves 301 are pulled to the farthest left and right ends of the rollers 2, and the colloid attached to the rollers 2 in a wide range of area is curled by maximally expanding the curling plate B305 and the curling plate A303. When the amount of glue is small or the distance between the rollers 2 is far, resulting in a narrow spread width on the rollers 2, the sliding sleeve 301 is moved to the corresponding end position of the width of the colloid by starting the electric telescopic rod 302, and the sliding sleeve 301, the curling plate A303, and the curling plate B305 are used to push and curl the colloid together.

[0060] Example 3: Please refer to Figure 1-13 On the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: an opening and closing mechanism 4 is provided on one side of the curling plate A303, the opening and closing mechanism 4 comprises a threaded rod 401, an outer wall of the threaded rod 401 is threadedly connected with an internal threaded sleeve 402, and an opening and closing plate 403 is fixedly connected to the outer wall of the internal threaded sleeve 402.

[0061] The top of the connecting block 312 is fixedly connected to the limiting block 404, one end of the internal thread sleeve 402 is in contact with the surface of the limiting block 404, the inner wall of the internal thread sleeve 402 is fixedly connected to one end of the threaded rod 401 through a built-in spring, and the opening and closing plate 403 is an arc-shaped plate structure;

[0062] And when the colloid on the roller 2 is large and wide, when the curling plate A303 and the curling plate B305 are fully unfolded, the curled area of ​​the colloid is also the largest at this time, and because the curling plate A303 and the curling plate B305 are inclined, when the colloid is synchronously rotated by the roller 2, it is first scooped up by the curling plate A303, and then begins to curl on the arc surface of the curling plate A303 and is transported to the curling plate B305, and then transported to between the two curling plates B305. Therefore, in this state, the roll entering the curling plate B305 is relatively large, and the opening and closing plate 403 is slightly lifted upward at this time. By utilizing the inclined surface of the opening and closing plate 403, when a larger roll is rolled into the interior by the roller 2, it will be guided and diverted by the opening and closing plate 403 to prevent the roll from being too large and too high and dumping to other positions, thereby maintaining the stable guiding effect of the roll when the roll is relatively large.

[0063] When the amount of glue is small, when the distance between the two sliding sleeves 301 is adjusted to be closer, the curling path through the curling plate A303 and the curling plate B305 becomes shorter, and the rolled roll is smaller. At this time, since the two sliding sleeves 301 are close to each other, the curling plate A303 is also pushed close to each other, and the curling plate A303 pushes the threaded rod 401 into the internal threaded sleeve 402, and one end of the internal threaded sleeve 402 is against the limit block 404, and the threaded rod 401 extends into the internal threaded sleeve 402, and the thread with a larger thread lead angle pushes the internal threaded sleeve 402 to rotate slightly, so that the internal threaded sleeve 402 drives the opening and closing plate 403 to rotate slightly. When the colloid is rolled up by the rollers 2, the opening and closing plates 403 can press the colloid from above, and push the colloid from behind to enter the two rollers 2, so as to exert pressure on the rolled colloid, so that the colloid can enter the two rollers 2 for flattening and mixing faster and more efficiently through pressure. The corresponding effects can be achieved by adapting to different working conditions, without the need for staff to constantly knead the flattened colloid manually. While improving work efficiency, it also avoids the safety hazards caused by manual operation of staff.

[0064] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rubber mixer for producing automotive rubber sealing strips, comprising an open mixer (1), wherein a roller (2) is arranged inside the open mixer (1), and characterized in that: The open mixer (1) is provided with a colloid rolling mechanism (3) inside; The colloid rolling mechanism (3) comprises: A sliding sleeve (301), one side of the sliding sleeve (301) is an inclined surface, the sliding sleeve (301) is sleeved on the outer wall of the roller (2) and is slidably connected to the outer wall of the roller (2), one side of the sliding sleeve (301) is fixedly connected to an electric telescopic rod (302), one end of the electric telescopic rod (302) is fixedly connected to the inner wall of the open mixer (1), and the sliding sleeve (301) is used to be pushed by the electric telescopic rod (302) to move left and right on the outer wall of the roller (2) to change its position; A curling plate A (303), the curling plate A (303) being an arc-shaped plate-shaped structure, the outer wall of the curling plate A (303) being fixedly connected to a thin steel wire (304), the inner wall of the curling plate A (303) being slidably connected to a curling plate B (305), the outer wall of the curling plate B (305) being fixedly connected to another thin steel wire (304), the curling plate A (303) being used to guide the thin colloid to curl into a roll; The outer walls of the curling plate A (303) and the curling plate B (305) are provided with grooves (310), and the inner walls of the grooves (310) are rotatably connected to a rotating wheel (311); A curved strip (307) is fixedly connected to one side of the curling plate A (303); a telescopic rod (306) is slidably connected to the outer wall of the curved strip (307); and a fixed plate (313) is fixedly connected to one end of the telescopic rod (306); An opening and closing mechanism (4) is provided on one side of the curling plate A (303), the opening and closing mechanism (4) comprising a threaded rod (401), the outer wall of the threaded rod (401) being threadedly connected to an internal threaded sleeve (402), and the outer wall of the internal threaded sleeve (402) being fixedly connected to an opening and closing plate (403); The top of the connection block (312) is fixedly connected to the limit block (404), one end of the internal thread sleeve (402) contacts the surface of the limit block (404), the inner wall of the internal thread sleeve (402) is fixedly connected to one end of the threaded rod (401) via a built-in spring, and the opening and closing plate (403) is an arc-shaped plate structure.

2. The rubber mixing machine for producing automotive rubber sealing strips according to claim 1, characterized in that: The fixed plate (313) is fixedly connected to the outer wall of the curling plate B (305), springs (308) are fixedly connected to both ends of the telescopic rod (306), and a connecting block (312) is fixedly connected to one side of the curling plate B (305).

3. The rubber mixing machine for producing automobile rubber sealing strips according to claim 2, characterized in that: The curling plate A (303) and the curling plate B (305) are both arc-shaped plate structures, and the curvature of the curling plate A (303) and the curling plate B (305) are the same.

4. The rubber mixing machine for producing automobile rubber sealing strips according to claim 3, characterized in that: The bottom of the curling plate A (303) contacts the outer wall of the roller (2), and the bottom of the curling plate B (305) contacts the outer wall of the roller (2).

Images