Automatic rubber open mill
Through the motor reducer driving screw and ball sleeve, convenient adjustment of the pressure roller spacing is achieved. Combined with the fan design, the slow adjustment speed and wear problems of the existing rubber starter are solved, improving the convenience of use and extending the service life.
Patent Information
- Application Number
- CN202422373380.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-28
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-28
AI Technical Summary
During the use of existing rubber mixers, the pitch adjustment speed of the calender rollers is slow and fixed, which affects the use effect; the increase in the temperature of the calender rollers leads to wear and shortens the service life.
The motor reducer drive screw and ball sleeve are used to achieve convenient adjustment of the pitch of the press roller; through the fan and limit frame design, the press rollers can be quickly ventilated and heat dissipated, and the temperature is avoided.
It improves the convenience of the starting mixer and extends the service life, avoiding wear of the press roller.
Smart Images
Figure CN223085166U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an automatic rubber kneader, belonging to the technical field of rubber processing. Background Art
[0002] Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under very small external force, and can return to its original state after removing the external force. Rubber is divided into natural rubber and synthetic rubber. Natural rubber is processed from the gum extracted from plants such as rubber trees and rubber grasses; synthetic rubber is obtained by polymerization of various monomers. Rubber can be plasticized, mixed, calendered or extruded to form rubber sheets, and a rubber kneader is needed to process rubber during the rubber forming process.
[0003] When the existing rubber kneader is in use, since the rubber needs to be colored during the repeated calendering operation on the calender rolls, the general operation process is to place the lumpy rubber between the two calender rolls for extrusion, and then the extrusion material below is put back above the two calender rolls by manual feeding, and the above process is repeated for multiple operations;
[0004] The existing kneader has the following defects during the processing process:
[0005] (1) When calendering rubber, the distance between the calender rolls needs to be adjusted. The traditional kneader adjusts through the flower plate. After the two side flower plates rotate corresponding angles, the gap between the calender rolls is adjusted. This method requires shutdown for operation, is slow, and the adjusted distance value is fixed, thus making the use effect of the kneader not good enough;
[0006] (2) When calendering rubber, during the mixing process of the rubber, the front and rear calender rolls will continuously rub against the rubber compound, which will cause the temperature of the front and rear calender rolls to gradually rise, easily wear the front and rear calender rolls, and thus shorten the service life of the kneader. Content of the Utility Model
[0007] (1) Technical Problem to be Solved
[0008] The utility model provides an automatic rubber kneader to solve the problems that the existing kneader has poor use effect and short service life.
[0009] (2) Technical Solution
[0010] The present utility model is realized through the following technical solutions: An automatic rubber mill, comprising a mill body, a control panel is arranged on one side of the mill body, two fixing frames are fixed in the middle of the mill body, start-stop switches are arranged on the upper sides of the front ends of the two fixing frames, motor speed reducers are arranged on the lower sides of the front ends of the two fixing frames, screw rod bodies are fixed at the output ends of the two motor speed reducers, ball sleeves are threadedly connected to the outer surfaces of the two screw rod bodies, a front extension roller is rotatably connected to the middle parts of the two ball sleeves, a rear extension roller is rotatably connected to the rear side of the mill body, side baffles are arranged in the middle parts of the two fixing frames, a photoelectric safety device is fixed at the upper end of the fixing frame, and a knee switch is arranged on the front side of the mill body.
[0011] Preferably, a driving gear is fixed on one side of the rear extension roller, the driving gear is meshed with a driven gear, a reciprocating screw rod reciprocating shaft is fixed in the middle of the driven gear, a round head pin is slidably connected to the inner wall of the thread groove of the reciprocating screw rod reciprocating shaft, a mounting frame is fixed at the upper end of the round head pin, a blower is arranged at the upper end of the mounting frame, and a limiting frame is slidably connected to the outer surface of the lower end of the mounting frame.
[0012] Preferably, both ends of the limiting frame are fixed to the rear end of the mill body, the outer surface of the mounting frame is slidably connected to the inner wall of the limiting frame, and the middle part of the lower side of the mounting frame is provided with a hollow.
[0013] Preferably, the upper end of the round head pin is fixed to the inner wall of the mounting frame, the outer surface of the round head pin is slidably connected to the inner wall of the thread groove of the reciprocating screw rod reciprocating shaft, the lower end of the round head pin is arc-shaped, and both ends of the reciprocating screw rod reciprocating shaft are rotatably connected to the rear end of the mill body.
[0014] Preferably, bevel gears are fixed to one ends of the front extension roller and the rear extension roller respectively, the other end of the rear extension roller is connected to a driving motor through a sprocket and a chain, the outer surface of the front extension roller is slidably connected to the front side of the mill body, and the outer surface of the rear extension roller is rotatably connected to the rear side of the mill body.
[0015] Preferably, the upper ends of the two ball sleeves are threadedly connected to the outer surfaces of the screw rod bodies, the middle parts of the ball sleeves are rotatably connected to both sides of the front extension roller, the two ball sleeves are arranged oppositely, and the outer surfaces of the two screw rod bodies are rotatably connected to the middle parts of the two fixing frames.
[0016] Preferably, the two side baffles are arranged between the front extension roller and the rear extension roller and are in clearance fit with each other, and the two side baffles are arranged oppositely.
[0017] The present utility model provides an automatic rubber mill, and the beneficial effects thereof are as follows:
[0018] (1) The automatic rubber mill drives two screw rod bodies to rotate through two motor speed reducers, enabling the screw rod bodies, ball sleeves, and front extension rollers to cooperate with each other to achieve the effect of convenient adjustment. There is no need to manually rotate the turntable for adjustment after shutdown, effectively accelerating the adjustment speed and conveniently adjusting the values, thereby improving the convenience of using the mill.
[0019] (2) The automatic rubber mill drives the rear extension roller to rotate through the driving motor, enabling the driving gear, driven gear, reciprocating screw rod reciprocating shaft, limit frame, mounting frame, and fan to cooperate with each other to achieve the effect of rapid ventilation and heat dissipation, avoiding continuous friction between the front and rear extension rollers and the rubber material, resulting in a gradual increase in the temperature of the front and rear extension rollers and causing wear, thereby extending the service life of the mill. Brief Description of the Drawings
[0020] Figure 1 is a three-dimensional view of the present utility model;
[0021] Figure 2 is a partial structural schematic diagram of the present utility model;
[0022] Figure 3 is a sectional view of the mounting frame of the present utility model;
[0023] Figure 4 is the present utility model Figure 3 A partial enlarged view of the structure.
[0024]
Description of the Main Component Symbols
[0025] 1. Mill body; 2. Control panel; 3. Fixed frame; 4. Start-stop switch; 5. Motor speed reducer; 6. Screw rod body; 7. Ball sleeve; 8. Front extension roller; 9. Rear extension roller; 10. Side baffle; 11. Photoelectric safety device; 12. Knee switch; 13. Driving gear; 14. Driven gear; 15. Reciprocating screw rod reciprocating shaft; 16. Round head pin; 17. Mounting frame; 18. Fan; 19. Limit frame. Detailed Embodiment
[0026] An embodiment of the present utility model provides an automatic rubber mill.
[0027] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, including the internal mixer body 1, a control panel 2 is arranged on one side of the internal mixer body 1, and the control panel 2 controls each drive unit to perform operations. Two fixing frames 3 are fixed in the middle of the internal mixer body 1. On the upper side of the front ends of the two fixing frames 3, start-stop switches 4 are arranged. The start-stop switches 4 control the start and stop of the front extension roller 8 and the rear extension roller 9. On the lower side of the front ends of the two fixing frames 3, motor reducers 5 are arranged. The motor reducer 5 is an integrated machine of a motor and a reducer, and the motor is an angle motor. The output ends of the two motor reducers 5 are both fixed with screw rod bodies 6. Ball sleeves 7 are threadedly connected to the outer surfaces of the two screw rod bodies 6. The middle parts of the two ball sleeves 7 are rotatably connected to the front extension roller 8. The rear extension roller 9 is rotatably connected to the rear side of the internal mixer body 1. Side baffles 10 are arranged in the middle of the two fixing frames 3, and the side baffles 10 function to block materials. An optoelectronic safety device 11 is fixed to the upper end of the fixing frame 3. The optoelectronic safety device 11 is also known as an optoelectronic safety system. A light curtain is projected at the position of the front extension roller 8. Additionally, during operation, a bracelet that can be recognized by the light curtain needs to be worn on the wrist, and the axial distance of the bracelet is greater than five centimeters. When pushing rubber by hand during the operation, when the bracelet passes through the position of the light curtain and is detected, the optoelectronic switch can control the two front extension rollers 8 and the rear extension roller 9 to stop quickly, so as to avoid the dangerous situation of hand injury caused by the operator's misoperation. A knee strike switch 12 is arranged on the front side of the internal mixer body 1. The original foot-kick emergency stop method is changed to a knee strike method. When danger occurs, the operator's standing position is generally close to the equipment. If the foot-kick method is used, the standing position distance needs to be adjusted, and the operation is carried out after confirming the position. The reaction time is longer than that of the knee strike method, thereby improving the use safety.
[0028] Please refer to again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , it is worth specifically explaining that bevel gears are fixed to one ends of the front extension roller 8 and the rear extension roller 9. The other end of the rear extension roller 9 is connected to the drive motor through a sprocket and a chain. The outer surface of the front extension roller 8 is slidably connected to the front side of the internal mixer body 1. The outer surface of the rear extension roller 9 is rotatably connected to the rear side of the internal mixer body 1. The upper ends of the two ball sleeves 7 are threadedly connected to the outer surfaces of the screw rod bodies 6. The middle parts of the ball sleeves 7 are rotatably connected to both sides of the front extension roller 8. The two ball sleeves 7 are arranged oppositely. The outer surfaces of the two screw rod bodies 6 are rotatably connected to the middle parts of the two fixing frames 3. The two side baffles 10 are arranged between the front extension roller 8 and the rear extension roller 9 and are in clearance fit. The two side baffles 10 are arranged oppositely.
[0029] Please refer to again Figure 1 、 Figure 2 、 Figure 3 and Figure 4, specifically, a driving gear 13 is fixed on one side of the rear extension roller 9. The driving gear 13 is meshed and connected with a driven gear 14. A reciprocating lead screw reciprocating shaft 15 is fixed in the middle of the driven gear 14. A round head pin 16 is slidably connected to the inner wall of the thread groove of the reciprocating lead screw reciprocating shaft 15. The upper end of the round head pin 16 is fixed with a mounting frame 17. The mounting frame 17 is internally provided with a power source to provide electric energy for the fan 18. A fan 18 is arranged at the upper end of the mounting frame 17. The outer surface of the lower end of the mounting frame 17 is slidably connected with a limiting frame 19. Both ends of the limiting frame 19 are fixed at the rear end of the internal mixer body 1. The outer surface of the mounting frame 17 is slidably connected to the inner wall of the limiting frame 19. The middle part of the lower side of the mounting frame 17 is hollow. The upper end of the round head pin 16 is fixed to the inner wall of the mounting frame 17. The outer surface of the round head pin 16 is slidably connected to the inner wall of the thread groove of the reciprocating lead screw reciprocating shaft 15. The lower end of the round head pin 16 is arc-shaped. Both ends of the reciprocating lead screw reciprocating shaft 15 are rotatably connected to the rear end of the internal mixer body 1.
[0030] When the utility model is in use: First, two motor reducers 5 drive two screw rod bodies 6 to rotate, so that the ball sleeves 7 threadedly connected to the same positions of the two screw rod bodies 6 move at the same speed and in the same direction under the stability of the two fixing frames 3. The two ball sleeves 7 moving at the same speed and in the same direction drive both ends of the front extension roller 8 to move at the same speed and in the same direction. Since the position of the rear extension roller 9 remains unchanged, the moving front extension roller 8 can change the distance between it and the rear extension roller 9. The front extension roller 8 and the rear extension roller 9 rotate in opposite directions under the drive of a drive motor through the cooperation of a sprocket, a chain and a helical gear to knead the rubber placed between the front extension roller 8 and the rear extension roller 9. The motor reducer 5 corresponds to a reduction ratio, and the output shaft of the tail end transmits a fixed value of distance, so as to calculate the adjusted distance. It can be controlled by the PLC terminal. After inputting the corresponding distance parameters, the distance between the front extension roller 8 and the rear extension roller 9 can be directly set to a fixed adjustment value, achieving the effect of convenient adjustment, without the need to manually rotate the turntable for adjustment after stopping work, effectively accelerating the adjustment speed and conveniently adjusting the value, thereby achieving the effect of improving the convenience of use of the mill. At the same time, the drive motor drives the driving sprocket to rotate. The rotating driving sprocket drives the driven sprocket to rotate through the chain. The driven sprocket drives the fixed rear extension roller 9 to rotate, so that the driving gear 13 fixed to one side of the rear extension roller 9 rotates. The rotating driving gear 13 drives the engaged driven gear 14 to rotate. The rotating driven gear 14 drives the reciprocating screw rod reciprocating shaft 15 fixed in the middle to rotate stably under the stability of the mill body 1. The rotating reciprocating screw rod reciprocating shaft 15 drives the mounting bracket 17 to perform reciprocating linear motion under the limitation of the limiting bracket 19 through the spiral reciprocating thread formed on itself and the round head pin 16. The reciprocating mounting bracket 17 drives the blower 18 arranged in the middle to perform reciprocating moving ventilation operation. The moving blower 18 drives a large range of air to flow rapidly. The rapidly flowing air takes away the excess heat in this area, achieving the effect of rapid ventilation and heat dissipation, avoiding continuous friction between the front and rear extension rollers and the rubber, resulting in a gradual increase in the temperature of the front and rear extension rollers and causing wear, and thus achieving the effect of extending the service life of the mill.
[0031] Working principle: Two motor speed reducers 5 drive two screw rod bodies 6 to rotate, so that the ball sleeves 7 threadedly connected to the screw rod bodies 6 drive the front extension rollers 8 to move, thereby adjusting the distance from the rear extension rollers 9, achieving the effect of convenient adjustment. There is no need to manually rotate the turntable for adjustment after shutdown, effectively accelerating the adjustment speed and facilitating the adjustment value, and further improving the convenience of using the mill. At the same time, the drive motor drives the rear extension roller 9 to rotate, so that the driving gear 13 fixed to the rear side of the rear extension roller 9 rotates, achieving the effect of rapid ventilation and heat dissipation, avoiding continuous friction between the front and rear extension rollers and the rubber compound, resulting in a gradual increase in the temperature of the front and rear extension rollers and causing wear, and further achieving the effect of extending the service life of the mill.
[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automatic rubber mill, comprising a mill body (1), characterized in that: On one side of the internal mixer body (1), a control panel (2) is provided. In the middle of the internal mixer body (1), two fixing frames (3) are fixed. On the upper sides of the fronts of the two fixing frames (3), start-stop switches (4) are provided. On the lower sides of the fronts of the two fixing frames (3), motor speed reducers (5) are provided. At the output ends of the two motor speed reducers (5), screw rod bodies (6) are fixed. On the outer surfaces of the two screw rod bodies (6), ball sleeves (7) are threadedly connected. In the middles of the two ball sleeves (7), a front extension roller (8) is rotatably connected. At the rear of the internal mixer body (1), a rear extension roller (9) is rotatably connected. In the middles of the two fixing frames (3), side baffles (10) are provided. At the upper ends of the fixing frames (3), optoelectronic safety devices (11) are fixed. In the front of the internal mixer body (1), a knee switch (12) is provided.
2. The automatic rubber mill according to claim 1, characterized in that: On one side of the rear extension roller (9), a driving gear (13) is fixed. The driving gear (13) is meshed with a driven gear (14). In the middle of the driven gear (14), a reciprocating screw rod reciprocating shaft (15) is fixed. Inside the thread groove inner wall of the reciprocating screw rod reciprocating shaft (15), a round head pin (16) is slidably connected. At the upper end of the round head pin (16), a mounting frame (17) is fixed. At the upper end of the mounting frame (17), a blower (18) is provided. On the outer surface of the lower end of the mounting frame (17), a limiting frame (19) is slidably connected.
3. An automatic rubber mill according to claim 2, characterized in that: Both ends of the limiting frame (19) are fixed to the rear end of the internal mixer body (1). The outer surface of the mounting frame (17) is slidably connected to the inner wall of the limiting frame (19). The middle part of the lower side of the mounting frame (17) is provided with a hollow.
4. An automatic rubber mill according to claim 2, characterized in that: The upper end of the round head pin (16) is fixed to the inner wall of the mounting frame (17). The outer surface of the round head pin (16) is slidably connected to the inner wall of the thread groove of the reciprocating screw rod reciprocating shaft (15). The lower end of the round head pin (16) is arc-shaped. Both ends of the reciprocating screw rod reciprocating shaft (15) are rotatably connected to the rear end of the internal mixer body (1).
5. An automatic rubber open mill according to claim 1, characterized in that: At one end of both the front extension roller (8) and the rear extension roller (9), helical gears are fixed. The other end of the rear extension roller (9) is connected to a driving motor through a sprocket and a chain. The outer surface of the front extension roller (8) is slidably connected to the front of the internal mixer body (1). The outer surface of the rear extension roller (9) is rotatably connected to the rear of the internal mixer body (1).
6. An automatic rubber mill according to claim 1, characterized in that: The upper ends of the two ball sleeves (7) are threadedly connected to the outer surfaces of the screw rod bodies (6). The middles of the ball sleeves (7) are rotatably connected to both sides of the front extension roller (8). The two ball sleeves (7) are arranged oppositely. The outer surfaces of the two screw rod bodies (6) are rotatably connected to the middles of the two fixing frames (3).
7. An automatic rubber mill according to claim 1, characterized in that: The two side baffles (10) are arranged between the front extension roller (8) and the rear extension roller (9) and are in clearance fit. The two side baffles (10) are arranged oppositely.