An automatic rubber mixing and conveying method and equipment for tire rubber sheets

Abstract

The present invention discloses an automatic rubber mixing and conveying method and device for tire films, which relates to the technical field of rubber equipment for tires. The device includes a storage device located above an open mill. Symmetrical fixing plates are arranged below the storage device. Symmetrical rollers are arranged between the fixing plates. The rollers are rotatably connected to the fixing plates through connecting shafts. An installation plate is arranged between the fixing plates above the rollers. A sliding mechanism is arranged on the installation plate. A rubber scraping knife device is arranged on the sliding mechanism. The storage device is used to detect and store the rubber compound discharged from the internal mixer and control the opening of the door to release the rubber compound according to the control of this device. The sliding mechanism can drive the rubber scraping knife device to move horizontally, and the rubber scraping knife device can scrape and separate the film adhered to the roller.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber equipment for tires, and specifically to an automatic rubber mixing and conveying method and equipment for tire rubber sheets. Background Art

[0002] The open mill is one of the main equipment for rubber mixing in the tire industry. After being extruded by the open mill, the rubber compound is output in the form of sheets. To fully mix various materials in the rubber compound, the extruded rubber sheets need to be put back into the open mill for repeated extrusion, and then conveyed to the second open mill according to the process requirements.

[0003] Traditionally, two open mills are generally configured for rubber mixing. During rubber mixing, each open mill requires an operator to manually put the extruded rubber sheets back into the open mill for repeated extrusion. After the extrusion of the rubber sheets is completed according to the process requirements, a blade is used to cut the rubber sheets and then put them on the conveyor belt to be conveyed to the next open mill. Due to the close contact with the rubber sheets, dangers such as personnel being involved and squeezed are likely to occur, and during rubber mixing, the temperature of the open mill rollers and the rubber compound is relatively high, so dangers such as scalding are likely to occur. In addition, manual operation cannot achieve precise control of the rubber mixing time, nor can it control the uniform feeding of the rubber sheets into the open mill, which affects the quality of rubber mixing. Moreover, the rubber sheets adhering to the open mill rollers cannot be automatically cut off, and sometimes manual knives need to be used for cutting, which poses a safety hazard.

[0004] Based on this, an automatic rubber mixing and conveying method and equipment for tire rubber sheets are now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic rubber mixing and conveying equipment for tire rubber sheets to solve the problems of personal harm caused by manual operation, inaccurate control of rubber mixing time, and unstable rubber mixing quality in the existing production process in the background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An automatic rubber mixing and conveying equipment for tire rubber sheets includes a storage device, the storage device is located above the open mill, symmetric fixing plates are arranged below the storage device, symmetric rollers are arranged between the fixing plates, the rollers are rotationally connected to the fixing plates through connecting shafts, an installation plate is arranged between the fixing plates above the rollers, a sliding mechanism is arranged on the installation plate, and a rubber scraping knife device is arranged on the sliding mechanism.

[0008] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional solution: the sliding mechanism includes a movable groove, the movable groove is located on the mounting plate, a screw is provided in the movable groove, one end of the screw is rotatably connected to the inner wall of the movable groove, and the other end is fixedly connected to the motor output end outside the fixed plate, a slider is provided in the movable groove, the slider is slidably connected to the movable groove, and the slider is rotatably connected to the screw thread.

[0010] In an optional solution: the scraper device includes a hydraulic cylinder, a telescopic rod is provided on the hydraulic cylinder, a first fixed block is fixedly connected to the hydraulic cylinder, a second fixed block is fixedly connected to the telescopic rod, a spring is fixedly connected between the first fixed block and the second fixed block, a connecting arm is provided at the outer end of the telescopic rod, the connecting arm and the telescopic rod are connected by a hinge, and a scraper is provided at the bottom end of the connecting arm.

[0011] In an optional solution: a rubber conveying and turning circulation device is provided around the outer side of the mixing mill.

[0012] In an optional solution: a glue sweeping device is provided on one side above the glue conveying and turning circulation device.

[0013] In an optional solution: a feeding device is provided at the tail end of the conveying and glue-turning circulation device.

[0014] In an optional solution, a rubber tamping device is provided on the mixing mill above the rubber scraper device.

[0015] In an optional solution: a material breaking and connecting device is provided above the glue tamping device and on one side of the feeding device.

[0016] In an optional solution: a film conveying device is provided on one side below the breaking and splicing device.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention utilizes two conveyor belts moving at the same speed to superimpose the films thereon, thereby realizing the conveying and circulation of the films in the vertical section; the rubber tamping device above the open mill drags the films to swing left and right so that the films are evenly fed into the open mill; the number of cycles is set according to the process requirements; after automatic operation, the film is advanced to the film conveying position through the breaking and splicing device to form a certain angle with the films; the film is automatically broken and conveyed to the second open mill by utilizing the reverse force generated by the rotation direction of the conveyor belt on the breaking and splicing device being opposite to the conveying direction of the films and forming a certain angle; the process of automatic transportation, conveying in the vertical section, evenly feeding the swinging films into the open mill, circulation, breaking the films and conveying is realized, thereby realizing automation and avoiding the harm caused by manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1Schematic diagram of the overall structure of the open mill of the present invention.

[0020] Figure 2 Schematic diagram of one side structure of the rubber scraping knife device of the present invention.

[0021] Figure 3 Schematic diagram of the other side structure of the rubber scraping knife device of the present invention.

[0022] Figure 4 For the present invention Figure 2 Enlarged view of part A.

[0023] Annotation of reference numerals in the drawings: 1. Material storage device; 2. Breaking and feeding device; 3. Film conveying device; 4. Rubber scraping knife device; 5. Kneading device; 6. Feeding device; 7. Conveying and turning rubber recycling device; 8. Rubber sweeping device; 9. Safety protection device; 10. Fixed plate; 11. Roller; 12. Mounting plate; 13. Moving groove; 14. Screw; 15. Slide block; 16. Hydraulic cylinder; 17. Telescopic rod; 18. First fixed block; 19. Second fixed block; 20. Spring; 21. Connecting arm; 22. Rubber scraping knife; 23. Connecting shaft; 24. Hinge; 25. Motor. Detailed implementation manners

[0024] In order to make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments.

[0025] In one embodiment, as Figures 1-4 shown, an automatic rubber mixing and conveying device for tire films includes a material storage device 1. The material storage device 1 is located above the open mill. Symmetric fixed plates 10 are arranged below the material storage device 1. Symmetric rollers 11 are arranged between the fixed plates 10. The rollers 11 are rotatably connected to the fixed plates 10 through connecting shafts 23. A mounting plate 12 is arranged above the rollers 11 between the fixed plates 10. A sliding mechanism is arranged on the mounting plate 12. A rubber scraping knife device 4 is arranged on the sliding mechanism. The material storage device is used to detect and store the rubber compound discharged from the internal mixer and control the opening of the door to put the rubber compound according to the control of this device. The sliding mechanism can drive the rubber scraping knife device 4 to move horizontally. The rubber scraping knife device 4 can scrape and separate the film adhered to the roller 11.

[0026] In one embodiment, as Figure 3As shown in the figure, the sliding mechanism includes a movable slot 13 located on the mounting plate 12. A screw rod 14 is arranged in the movable slot 13. One end of the screw rod 14 is rotatably connected to the inner wall of the movable slot 13, and the other end is fixedly connected to the output end of the motor 25 outside the fixed plate 10. A slider 15 is arranged in the movable slot 13. The slider 15 is slidably connected to the movable slot 13 and is threadedly rotatably connected to the screw rod 14. The motor 25 drives the screw rod 14 to rotate. Through the threaded rotational connection between the slider 15 and the screw rod 14, the slider 15 moves horizontally in the movable slot 13.

[0027] In one embodiment, as Figure 3 and Figure 4 shown, the rubber scraping knife device 4 includes a hydraulic cylinder 16. A telescopic rod 17 is arranged on the hydraulic cylinder 16. A first fixing block 18 is fixedly connected to the hydraulic cylinder 16. A second fixing block 19 is fixedly connected to the telescopic rod 17. A spring 20 is fixedly connected between the first fixing block 18 and the second fixing block 19. A connecting arm 21 is arranged at the outer end of the telescopic rod 17. The connecting arm 21 is connected to the telescopic rod 17 through a hinge 24. A rubber scraping knife 22 is arranged at the bottom end of the connecting arm 21. When scraping rubber, the hydraulic cylinder 16 is started to make the telescopic rod 17 move forward. Under its push, the connecting arm 21 makes the rubber scraping knife 22 at the end of the connecting arm 21 approach the roller 11 and contact its surface for rubber scraping. When the rubber scraping is completed, the pressure on the hydraulic cylinder 16 is stopped. The second fixing block 19 on the telescopic rod 17 resets under the action of the spring 20, and the rubber scraping knife 22 moves away from the roller 11.

[0028] In one embodiment, as Figure 2 shown, a conveying and turning rubber recycling device 7 is arranged around the outside of the open mill. Two conveyor belts moving at the same speed stack the rubber sheets therein, realizing the conveying of the vertical section during the turning process of the rubber sheets.

[0029] In one embodiment, as Figure 2 shown, a rubber sweeping device 8 is arranged on one side above the conveying and turning rubber recycling device 7. The roller shaft of the rubber sweeping device 8 rotates in the reverse direction quickly to peel the rubber sheet from the vertical section conveyor belt, and the rubber sheet is conveyed to the feeding device 6 through the horizontal section conveyor belt.

[0030] In one embodiment, as Figure 2 shown, a feeding device 6 is arranged at the tail end of the conveying and turning rubber recycling device 7. It can be raised and lowered through a driving device and is linked with the conveying and turning rubber recycling device 7. When the feeding device falls, it can avoid hitting the discharging of the storage device. After rising, it can convey the rubber material into the open mill. In the raised state, in cooperation with the breaking and receiving device, the rubber sheet can be broken and conveyed.

[0031] In one embodiment, as Figure 2As shown, a kneading device 5 is provided above the coating knife device 4 on the open mill, which can drag the film to swing left and right and traction, so that the film can be evenly fed into the rollers 11 of the open mill.

[0032] In one embodiment, as Figure 2 shown, a film breaking and receiving device 2 is provided on one side of the feeding device 6 above the kneading device 5. The rotating direction of the conveyor belt is opposite to the film circulation direction, and forms a dislocation and an included angle with the feeding device, and uses the reaction force to break the film and convey it to the film conveying device 3.

[0033] In one embodiment, as Figure 2 shown, a film conveying device 3 is provided on one side below the film breaking and receiving device 2, which is used to convey the film to the second open mill.

[0034] In one embodiment, as Figure 2 shown, a control system is provided outside the open mill, which is used to realize the control and detection of the equipment and cooperate with the open mill to realize the linkage function.

[0035] The above embodiments disclose an automatic rubber mixing and conveying method and equipment for tire rubber sheets. During the working process, the internal mixer discharges the rubber compound into the storage device 1. The storage device 1 controls the opening of the door to release the rubber compound according to this equipment. While the storage device 1 opens the door, the rubber scraping knife device 4 and the conveying and turning rubber recycling device 7 act. The blade 22 of the rubber scraping knife 4 of the rubber scraping knife device 4 closely adheres to the roller 11 of the open mill at a tangent position, and scrapes and separates the rubber sheet adhered to the roller 11 during the working process. After the rubber compound in the storage device 1 is discharged, the door is closed. The feeding device 6 is driven to rise by a cylinder. After rising to the specified position and being detected by a switch, the rubber ramming device 5 can drag the rubber sheet to swing left and right and traction, so that the rubber sheet can be evenly put into the roller 11 of the open mill. After the roller 11 of the open mill extrudes the rubber compound into a rubber sheet, it falls onto the conveyor belt of the conveying and turning rubber recycling device 7, driving the rubber sheet for conveying. In the vertical section, the rubber sheet is stacked by two conveyor belts moving at the same speed to realize the rubber sheet conveying. When it is conveyed to the horizontal section, the rubber sheet is peeled off from the vertical section conveyor belt by the reverse rapid rotation of the rubber sweeping device 8, and the rubber sheet is conveyed along the horizontal conveyor belt to the feeding device 6, and then falls after passing through the feeding device 6. The falling rubber sheet is swung left and right by the rubber ramming device 5 so that the rubber sheet evenly falls at the two rollers 11 of the open mill, completing a conveying cycle. After the conveying and turning rubber recycling device 7 circulates the rubber sheet multiple times to meet the process requirements, the rubber ramming device 5 moves outward to return to the initial position. The cutting and receiving device 2 runs from the original position to the receiving position. Based on the principle of a certain angle formed by the cutting and receiving device 2 and the feeding device 6, and the reverse force generated by the rotation direction of the conveyor belt on the cutting and receiving device 2 being opposite to the conveying direction of the rubber sheet, the rubber sheet is automatically cut and conveyed onto the rubber sheet conveying device 3 and then the rubber sheet is conveyed to the second open mill, completing a working cycle.

[0036] As described above, the above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An automatic rubber mixing and conveying device for tire rubber sheets, comprising a material storage device (1), wherein the material storage device (1) is located above the open mill, and is characterized in that, There are symmetric fixed plates (10) arranged below the storage device (1). Symmetric rollers (11) are arranged between the fixed plates (10). The rollers (11) are rotatably connected to the fixed plates (10) through connecting shafts (23). An installation plate (12) is arranged between the fixed plates (10) above the rollers (11). A sliding mechanism is arranged on the installation plate (12), and a rubber scraping knife device (4) is arranged on the sliding mechanism; The rubber scraping knife device (4) includes a hydraulic cylinder (16). A telescopic rod (17) is arranged on the hydraulic cylinder (16). A first fixed block (18) is fixedly connected to the hydraulic cylinder (16). A second fixed block (19) is fixedly connected to the telescopic rod (17). A spring (20) is fixedly connected between the first fixed block (18) and the second fixed block (19). A connecting arm (21) is arranged at the outer end of the telescopic rod (17). The connecting arm (21) is connected to the telescopic rod (17) through a hinge (24). A rubber scraping knife (22) is arranged at the bottom end of the connecting arm (21); A conveying and turning rubber recycling device (7) is arranged around the outside of the internal mixer; A feeding device (6) is arranged at the tail end of the conveying and turning rubber recycling device (7); A rubber ramming device (5) is arranged above the rubber scraping knife device (4) on the internal mixer; A breaking and receiving device (2) is arranged above the rubber ramming device (5) and on one side of the feeding device (6); 2. The automatic rubber mixing and conveying equipment for tire rubber sheets according to claim 1, characterized in that, The sliding mechanism includes a movable groove (13). The movable groove (13) is arranged on the installation plate (12). A screw rod (14) is arranged in the movable groove (13). One end of the screw rod (14) is rotatably connected to the inner wall of the movable groove (13), and the other end is fixedly connected to the output end of a motor (25) outside the fixed plate (10). A slider (15) is arranged in the movable groove (13). The slider (15) is slidably connected to the movable groove (13) and is in threaded rotation connection with the screw rod (14).

3. The automatic rubber mixing and conveying equipment for tire films according to claim 2, wherein, A rubber sweeping device (8) is arranged on one side above the conveying and turning rubber recycling device (7); 4. The automatic rubber mixing and conveying equipment for tire rubber sheets according to claim 3, characterized in that, A rubber sheet conveying device (3) is arranged on one side below the breaking and receiving device (2); 5. A method for using an automatic rubber mixing and conveying device for tire rubber sheets as described in claim 4, characterized in that, It includes the following steps: Step 1: During the working process, the internal mixer discharges the rubber material into the storage device (1). The storage device (1) controls the opening of the door to put the rubber material. While the door of the storage device (1) is opened, the rubber scraping knife device (4) and the conveying and turning rubber recycling device (7) act. The blade of the rubber scraping knife (22) of the rubber scraping knife device (4) is closely attached to the roller (11) of the internal mixer at a tangent position, and scrapes and separates the rubber sheet adhered to the roller (11) during the working process. After the rubber material in the storage device (1) is discharged, the opening door is closed; Step 2: The feeding device (6) is driven by a cylinder to rise. After lifting to the specified position and being detected by a switch, the rubber ramming device (5) can drag the film to swing left and right and be pulled, so that the film can be evenly put into the rolls of the open mill (11). After the rolls of the open mill (11) extrude the rubber compound into a film, the film falls onto the conveyor belt of the conveying and turning rubber recycling device (7), which drives the film for conveying. When passing through the vertical section, the film is stacked by two conveyor belts moving at the same speed to realize film conveying. When conveyed to the horizontal section, the film is peeled off the vertical conveyor belt by the rapid reverse rotation of the rubber sweeping device (8), and the film is conveyed along the horizontal conveyor belt to the feeding device (6). After passing through the feeding device (6), it falls, and the falling film is swung left and right by the left and right swing of the rubber ramming device (5) so that the film evenly falls at the two rolls of the open mill (11), completing a conveying cycle; Step 3: After the conveying and turning rubber recycling device (7) circulates the film multiple times to meet the process requirements, the rubber ramming device (5) moves outwards to return to the initial position. The film cutting and receiving device (2) runs from the original position to the receiving position. Based on the principle of the certain angle formed by the film cutting and receiving device (2) and the feeding device (6), and the reverse force generated by the opposite rotation direction of the conveyor belt on the film cutting and receiving device (2) and the conveying direction of the film, the film is automatically cut and conveyed onto the film conveying device (3), and then the film is conveyed to the second open mill, completing a working cycle.

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