Rubber mixing machine for production based on ethylene propylene diene monomer rubber tube

Abstract

The utility model relates to the field of rubber mixing mills, and discloses a rubber mixing mill based on ethylene propylene diene monomer rubber tube production, which comprises an integral support, a roller mechanism, scraper blade mechanisms and a lifting mechanism, the roller mechanism is arranged in the integral support, the scraper blade mechanisms are fixedly arranged on the integral support corresponding to two sides of the roller mechanism, and the lifting mechanism is arranged on the integral support. By arranging the scraper mechanism, when more rubber materials are attached to the roller, the roller can be quickly cleaned, the scraper mechanism can effectively remove rubber residues on the surface of the roller, it is guaranteed that the roller is kept in a good working state all the time, and the service life of the roller is prolonged. The gap between the rollers can be flexibly adjusted through the lifting mechanism, an operator can accurately control the gap between the rollers according to the characteristics and processing requirements of different sizing materials through the design so as to optimize the pressing effect, meanwhile, the rollers can be conveniently detached from the device, and the operation convenience is greatly improved through the design.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rubber mixing mill, concretely to a rubber mixing mill for production of ethylene propylene diene rubber pipe. BACKGROUND

[0002] Ethylene propylene diene rubber (EPDM) is a synthetic rubber with excellent aging resistance, ozone resistance and high temperature resistance, widely used in automobile, construction, electronics, electrical and other industries. In the production process of ethylene propylene diene rubber pipe, the rubber mixing mill as a key equipment plays an important role. The rubber mixing process of ethylene propylene diene rubber usually includes mixing, plasticizing and processing steps. This process needs to mix rubber with other additives (such as fillers, plasticizers, vulcanizing agents, etc.) uniformly to improve its performance and processability. There are various types of rubber mixing mills, including open type rubber mixing mill and internal mixer, etc. Among them, the internal mixer is more and more favored due to its high mixing capacity and good material control. The existing rubber mixing mill is mainly composed of two rotating rollers. The two rollers are installed on the frame. The raw rubber is processed between the two rotating rollers. The shear force generated by the different rotating speeds between the front and rear rollers can break the rubber macromolecules, thereby achieving the effect of plasticizing. When the rubber mixing mill is working, the rubber material is put between the two compression rollers for extrusion, forming a sheet product. However, during the extrusion process, a part of the rubber material often adheres to the compression roller, which is difficult to clean in time during work. In addition, the compression roller generates a large amount of heat during the extrusion of the rubber material, which causes the rubber material adhering to the roller surface to deteriorate. If the adhered rubber material is not cleaned in time, it may mix into the rubber material for subsequent extrusion, thereby affecting the yield of the final product. The current rubber mixing mill adopts a fixed connection mode between the rollers, which makes it impossible to adjust the gap between the rubber mixing rollers according to the actual situation of the rubber material during use. This situation affects the plasticizing effect of the rubber material and further adversely affects the subsequent processing operation. Therefore, we propose a rubber mixing mill for production of ethylene propylene diene rubber pipe. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides a rubber mixing mill for production of ethylene propylene diene rubber pipe, which solves the above problems.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a rubber mixing mill for production of ethylene propylene diene rubber pipe, comprising a whole bracket, a roller mechanism, a scraper mechanism and a lifting mechanism. The roller mechanism is installed in the whole bracket. The scraper mechanism is fixedly installed on both sides of the roller mechanism on the whole bracket. The lifting mechanism is fixedly arranged symmetrically on the left and right sides below the roller mechanism.

[0005] Preferably, the lifting mechanism comprises a second cylinder, a bottom plate, an output shaft, a support column, a rack stick one, the bottom surface of the bottom plate is closely attached to the bottom surface of the overall support, the side surface is closely attached to the inner side wall of the overall support, a support column is fixedly arranged at the surface short side of the bottom plate, the top of the support column is fixedly connected with the second cylinder, a support column is welded on the front of the surface of the bottom plate corresponding to the support column, a through hole is formed in the support column, a rack stick one is coaxially and movably connected to the through hole, a small section of rack is formed on the surface of the rack stick one, one end of the second cylinder is drivingly connected with an output shaft, and the other end of the output shaft is fixedly connected with the rack stick one.

[0006] Preferably, the lifting mechanism comprises a support column, a roller, a rotating shaft, a gear, a second support column and a third support column are further fixedly arranged on the surface of the bottom plate corresponding to the front end of the support column, a through hole is formed in the second support column, a rotating shaft is coaxially and movably connected to the through hole, gears are rotatably connected to the two ends of the rotating shaft, and the gear on one side is in meshing connection with the rack of the rack stick one, a roller is rotatably connected to the inner wall of the third support column, and the roller is tangent to and rotatably connected with the rack stick one.

[0007] Preferably, the lifting mechanism further comprises a shell and a rack stick two, the shell is fixedly arranged on the surface of the bottom plate corresponding to the side of the second support column, the rack stick two is sleeved in the shell, a rack is formed on the rack stick two, a guide groove matching the movement track of the gear is formed on the surface of the shell corresponding to the gear, and the gear is in meshing connection with the rack on the rack stick two through the groove.

[0008] Preferably, the roller mechanism comprises a first cylinder, a transmission shaft, a movable plate, a roller one, a roller two, a small motor and a large motor, the top surface of the rack roller two is fixedly installed with a small motor, a first cylinder is fixedly arranged at the side of the overall support, a transmission shaft is drivingly connected to the first cylinder, a fixed block is welded at the top of the transmission shaft, a movable plate is rotatably connected to the side surface of the overall support, a fixed block is welded on the outer side surface of the movable plate, the fixed block on the transmission shaft is rotatably connected with the fixed block on the movable plate, a hole is formed in the movable plate, the roller one is sleeved in the hole, a large motor is fixedly connected to the other side outer wall of the overall support, the output shaft of the large motor is fixedly connected with the roller one through the hole of the overall support, and the roller two is rotatably connected to the output shaft.

[0009] Preferably, the scraper mechanism includes a mounting plate, guide rods, hydraulic rods, U-shaped blocks, scrapers, mounting blocks, and springs. The mounting plate is fixedly connected to both sides of the arc-shaped surfaces of roller one and roller two on the overall bracket. Guide rods are symmetrically and movably connected to the mounting plate. A limit block is fixedly provided on one end of the guide rod on the outer side of the mounting plate, and a scraper is fixedly connected to one end on the inner side of the mounting plate. A hydraulic rod is fixedly connected to the inner wall of the mounting plate at the middle of the two sets of guide rods, and a U-shaped block is also fixedly provided on the output shaft of the hydraulic rod. Two sets of mounting blocks are engaged in the "U" groove of the U-shaped block. A spring is fixedly provided on the side of the mounting block that does not contact the U-shaped block, and the other end of the spring is connected to the scraper.

[0010] Compared with the prior art, this utility model provides a rubber mixing mill for the production of EPDM rubber hoses, which has the following beneficial effects:

[0011] 1. This rubber mixing mill for producing EPDM rubber hoses features a scraper mechanism that allows for rapid cleaning of rubber material adhering to the rollers. This scraper mechanism effectively removes rubber residue from the roller surface, ensuring the rollers remain in good working condition. This not only improves production efficiency but also prevents processing problems caused by rubber accumulation. Furthermore, timely cleaning of the rubber material prevents deterioration, thus better guaranteeing the quality of rubber products in subsequent processing.

[0012] 2. This rubber mixing mill for producing EPDM rubber hoses features a lifting mechanism that allows for flexible adjustment of the gap between the rollers. This design enables operators to accurately control the roller gap according to the characteristics of different rubber materials and processing requirements, thereby optimizing the pressing effect. This adjustability not only improves the mixing efficiency but also enhances the uniformity and quality of the finished product. Furthermore, the rollers can be easily disassembled from the device, greatly improving operational convenience. When maintenance, cleaning, or roller replacement is required, the quick disassembly function makes the process efficient and simple. Operators do not need complex tools or cumbersome procedures; a simple operation is all it takes to remove the rollers for thorough cleaning or necessary maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the lifting mechanism of this utility model;

[0015] Figure 3 This is a cross-sectional view of the outer shell of this utility model;

[0016] Figure 4 for Figure 3A magnified view of part A in the diagram;

[0017] Figure 5 This is a schematic diagram of the scraper mechanism of this utility model.

[0018] In the diagram: 1. Overall bracket; 2. Mounting plate; 3. Guide rod; 4. Fixing component; 5. U-shaped block; 6. Scraper; 7. Cylinder 1; 8. Drive shaft; 9. Movable plate; 10. Mounting block; 11. Spring; 12. Roller 1; 13. Roller 2; 14. Small motor; 15. Large motor; 16. Cylinder 2; 17. Base plate; 18. Output shaft; 19. Support column; 20. Rack roller 1; 21. Roller; 22. Rotating shaft; 23. Gear; 24. Outer shell; 25. Rack roller 2; 26. Support column 2; 27. Support column 3. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5 A rubber mixing mill for producing EPDM rubber hoses includes an integral support 1, a roller mechanism, a scraper mechanism, and a lifting mechanism. The roller mechanism is installed inside the integral support 1, and the scraper mechanism is fixedly installed on both sides of the integral support 1 corresponding to the roller mechanism. The lifting mechanism is symmetrically fixedly arranged on the left and right sides below the roller mechanism.

[0021] Furthermore, the lifting mechanism includes a second cylinder 16, a base plate 17, an output shaft 18, a support column 19, and a rack and pinion 20. The bottom surface of the base plate 17 is tightly fitted with the bottom surface of the overall support 1, and the side surface is tightly fitted with the inner side wall of the overall support 1. An I-shaped support column is fixedly installed on the short side of the surface of the base plate 17. The top of the support column is fixedly connected to the second cylinder 16. A support column 19 is welded to the front of the I-shaped support column on the surface of the base plate 17. A through hole is opened on the support column 19, and a rack and pinion 20 is movably connected to the through hole on the coaxial axis. A small section of rack is opened on the surface of the rack and pinion 20. One end of the second cylinder 16 is drivenly connected to the output shaft 18, and the other end of the output shaft 18 is fixedly connected to the rack and pinion 20.

[0022] Furthermore, the lifting mechanism includes a support column 19, a roller 21, a rotating shaft 22, and a gear 23. On the surface of the base plate 17, a second support column 26 and a third support column 27 are fixedly installed at the front end of the support column 19. The second support column 26 has a through hole, and the rotating shaft 22 is movably connected to the through hole on the same axis. The two ends of the rotating shaft 22 are respectively rotatably connected to the gear 23, and one side of the gear 23 is meshed with the rack of the first rack rod 20. The inner wall of the third support column 27 is rotatably connected to the roller 21, and the roller 21 is tangential to and rotatably connected to the first rack rod 20.

[0023] Furthermore, the lifting mechanism also includes a housing 24 and a rack and pinion 25. The housing 24 is fixedly installed on the surface of the base plate 17 next to the support column 26. The rack and pinion 25 is sleeved inside the housing 24. A rack is provided on the rack and pinion 25. A guide groove matching the movement trajectory of the gear 23 is provided on the surface of the housing 24 corresponding to the gear 23. The gear 23 meshes with the rack on the rack and pinion 25 through the groove.

[0024] Furthermore, the roller mechanism includes cylinder 7, drive shaft 8, movable plate 9, roller 12, roller 23, small motor 14, and large motor 15. Small motor 14 is fixedly installed on the top surface of rack roller 25. Cylinder 7 is fixedly installed on the side of the overall bracket 1. Drive shaft 8 is connected to cylinder 7. Fixed block is welded to the top of drive shaft 8. Movable plate 9 is rotatably connected to the side of the overall bracket 1. Fixed block is welded to the outer side of movable plate 9. Fixed block on drive shaft 8 and fixed block on movable plate 9 are rotatably connected. Hole is opened on movable plate 9. Roller 12 is sleeved in the hole. Large motor 15 is fixedly connected to the outer wall of the other side of the overall bracket 1. The output shaft of large motor 15 is fixedly connected to roller 12 through the hole of overall bracket 1. Roller 23 is rotatably connected between the two small motors 14 through the output shaft.

[0025] Furthermore, the scraper mechanism includes a mounting plate 2, guide rods 3, hydraulic rods 4, U-shaped blocks 5, scraper 6, mounting blocks 10, and springs 11. The mounting plate 2 is fixedly connected to both sides of the arc-shaped surfaces of roller 12 and roller 23 corresponding to the overall support 1. Guide rods 3 are symmetrically and movably connected to the mounting plate 2. A limit block is fixedly installed on one end of the guide rod 3 on the outer side of the mounting plate 2, and a scraper 6 is fixedly connected to one end on the inner side of the mounting plate 2. Hydraulic rods 4 are fixedly connected to the inner wall of the mounting plate 2 at the midpoint between the two sets of guide rods 3, and U-shaped blocks 5 are also fixedly installed on the output shaft of the hydraulic rods 4. The U-shaped groove of the U-shaped block 5 is engaged with… There are two sets of mounting blocks 10. A spring 11 is fixedly installed on the side of the mounting block 10 that does not contact the U-shaped block 5. The other end of the spring 11 is connected to a scraper 6. By setting up a scraper mechanism, when a lot of rubber material is attached to the roller 12 and roller 23, it can be quickly cleaned. The scraper mechanism can effectively remove the rubber residue on the surface of roller 12 and roller 23, ensuring that the rollers always maintain a good working condition. This not only improves production efficiency, but also prevents processing problems caused by the accumulation of rubber material. At the same time, timely cleaning of rubber material can also prevent its deterioration, thereby better ensuring the quality of rubber products in subsequent processing.

[0026] Working principle: The rubber compound is placed into the gap between roller 12 and roller 23. The small motor 14 and the large motor 15 are started, causing roller 12 and roller 23 to rotate. During rubber compound compression, the gap between roller 12 and roller 23 can be adjusted according to the degree of compression. At this time, cylinder 216 is activated, driving the output shaft 18 to move back and forth. The output shaft 18 further drives the rack roller 20 to move back and forth, causing the gear 23 meshing with the rack on rack roller 20 to rotate. Through the rotating shaft 22, the gear 23 at the other end also rotates, allowing the rack roller 25 meshing with this gear 23 to move up and down, driving the small motor 14 and the gears meshing with it. The connected roller 13 moves up and down, thereby adjusting the gap between roller 12 and roller 13. The scraper 6 can scrape off excess adhesive on roller 12 and roller 13. When a lot of adhesive is attached to the scraper 6, the control fixing part 4 shortens, driving the U-shaped block 5 to move away from roller 12 and roller 13, so that the scraper 6 is disengaged from roller 12 and roller 13. The mounting block 10 is pulled out from the U-shaped block 5, thereby removing the scraper 6. The scraper 6 can then be replaced and cleaned. When roller 12 needs to be disassembled, the cylinder 7 is activated to drive the transmission shaft 8 downward, and the movable plate 9 also moves downward, so that roller 12 can be separated from the overall bracket 1 and the movable plate 9.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber mixing mill for producing a ternary ethylene-propylene rubber pipe, comprising a whole support (1), a roller mechanism, a scraper mechanism, a lifting mechanism, characterized in that: The whole bracket (1) is provided with a roller mechanism, and scraping plate mechanisms are fixedly installed on both sides of the roller mechanism on the whole bracket (1).

2. The rubber mixing mill for producing three-element ethylene-propylene rubber pipe according to claim 1, characterized in that: The lifting mechanism comprises a second air cylinder (16), a bottom plate (17), an output shaft (18), a supporting column (19) and a rack rod (20). The bottom surface of the bottom plate (17) is tightly attached to the bottom surface of the whole bracket (1), and the side surface is tightly attached to the inner side wall of the whole bracket (1). A supporting column is fixedly arranged at the surface short side of the bottom plate (17), and the top of the supporting column is fixedly connected with the second air cylinder (16). A supporting column (19) is welded on the surface of the bottom plate (17) in front of the supporting column. A through hole is formed in the supporting column (19), and the through hole is coaxially and movably connected with the rack rod (20). A small section of rack is formed on the surface of the rack rod (20). One end of the second air cylinder (16) is drivingly connected with the output shaft (18), and the other end of the output shaft (18) is fixedly connected with the rack rod (20).

3. The rubber mixing mill for producing EPDM pipe according to claim 2, characterized in that: The lifting mechanism comprises a supporting column (19), a roller (21), a rotating shaft (22) and a gear (23). A second supporting column (26) and a third supporting column (27) are further fixedly arranged on the surface of the bottom plate (17) in front of the supporting column (19). A through hole is formed in the second supporting column (26), and the through hole is coaxially and movably connected with the rotating shaft (22). The rotating shaft (22) is rotatably connected with the gears (23) at both ends. The gear (23) on one side is meshingly connected with the rack of the rack rod (20). The roller (21) is rotatably connected with the inner wall of the third supporting column (27), and the roller (21) is tangentially connected with the rack rod (20).

4. The rubber mixing mill for producing EPDM pipe according to claim 3, characterized in that: The lifting mechanism further comprises a shell (24) and a rack rod (25). The shell (24) is fixedly arranged on the surface of the bottom plate (17) beside the second supporting column (26). The rack rod (25) is sleeved in the shell (24). A rack is formed on the rack rod (25). A guide groove matching the movement track of the gear (23) is formed on the surface of the shell (24) corresponding to the gear (23), and the gear (23) is meshed with the rack on the rack rod (25) through the groove.

5. The rubber mixing mill for producing EPDM pipe according to claim 4, characterized in that: The roller mechanism comprises a cylinder one (7), a transmission shaft (8), a movable plate (9), a roller one (12), a roller two (13), a small motor (14) and a large motor (15), the top surface of the rack roller two (25) is fixedly provided with the small motor (14), the side of the overall support (1) is fixedly provided with the cylinder one (7), the transmission shaft (8) is in driving connection with the cylinder one (7), the top of the transmission shaft (8) is welded with a fixed block, the side of the overall support (1) is rotatably connected with the movable plate (9), the outer side of the movable plate (9) is welded with a fixed block, the fixed block on the transmission shaft (8) is rotatably connected with the fixed block on the movable plate (9), the movable plate (9) is provided with a hole, the roller one (12) is sleeved on the hole, the other side of the overall support (1) is fixedly connected with the large motor (15), and the output shaft of the large motor (15) is fixedly connected with the roller one (12) through the hole of the overall support (1), the two small motors (14) are rotatably connected with the roller two (13) through the output shaft.

6. The rubber mixing mill for producing EPDM pipe according to claim 5, characterized in that: The scraper mechanism comprises a mounting plate (2), a guide rod (3), a hydraulic rod (4), a U-shaped block (5), a scraper (6), a mounting block (10) and a spring (11), the overall support (1) is fixedly connected with the mounting plate (2) on the two arc-shaped sides of the roller one (12) and the roller two (13), the guide rod (3) is movably connected with the mounting plate (2), the mounting plate (2) is fixedly provided with a limiting block on the outer side of the guide rod (3), the scraper (6) is fixedly connected with the mounting plate (2), the hydraulic rod (4) is fixedly connected with the mounting plate (2) on the inner wall of the mounting plate (2), the output shaft of the hydraulic rod (4) is also fixedly provided with the U-shaped block (5), the U-shaped block (5) is connected with the two mounting blocks (10), the spring (11) is fixedly arranged on the mounting block (10), and the other end of the spring (11) is connected with the scraper (6).

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