Open type rubber mixing mill for rubber tire production

Abstract

The utility model relates to the technical field of rubber processing equipment, and provides an open type rubber mixing mill for rubber tire production, which comprises a bottom plate, the top of the bottom plate is fixedly connected with two support plates, the right side of the right support plate is fixedly connected with two first motors, and the output ends of the two first motors are fixedly connected with mixing rollers. A linear module is installed between the tops of the two supporting plates, a lubricating mechanism is arranged on the left side of the supporting plate on the left side, a quantifying mechanism is arranged at the bottom of the linear module, the lubricating mechanism comprises a control assembly and two conveying assemblies, and the control assembly is arranged on the left side of the supporting plate on the left side. According to the utility model, the lubricating oil is conveyed to the shaft neck of the mixing roller through the arranged lubricating mechanism, so that the problems that the shaft neck is abraded in a long-time and high-load operation process, so that the shaft neck is overheated and blocked, and even the mixing roller suddenly stops working, are avoided, the downtime is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber processing equipment, specifically to an open-type rubber mixing machine for producing rubber tires. Background Technology

[0002] Rubber tires are key components of transportation vehicles, made from rubber, steel wire, fibers, and other chemically synthesized substances. They are mainly used in the wheels of various automobiles, motorcycles, trucks, and public transportation vehicles. The function of tires is to provide traction, bear the weight of the vehicle, reduce vibration, and enhance handling performance through contact with the ground. Open-face rubber mixing mills are equipment used for rubber mixing, especially in the tire manufacturing industry. They are widely used in the formulation and mixing process of rubber. The rubber mixing process involves mixing raw materials (such as natural rubber, synthetic rubber, carbon black, chemical additives, etc.) in a certain proportion and using mechanical action to make them uniform and achieve the required physical properties. Open-face rubber mixing mills are one of the most important pieces of equipment in this process.

[0003] Chinese patent CN222004069U discloses a rubber open mixing mill, including a base. A fixed shell is fixedly connected to the top surface of the base. A fixed plate is fixedly connected to the front and rear sides of the inner wall of the fixed shell near the right side. A through hole is opened on the top of the fixed plate. Through the arrangement of the fixed plate, screw, support plate, first motor, connecting frame and auxiliary shaft, the auxiliary shaft can be moved to the right. The rightward movement of the auxiliary shaft will stretch the rubber, making the rubber thinner, thereby greatly reducing the time required to reduce the rubber thickness, reducing the time for rubber extrusion, and improving the working efficiency of the device. Through the arrangement of slide, fan mounting cavity, first cooling fan, guide plate, collection cavity and second cooling fan, the first cooling fan and the second cooling fan can cool the rubber in the slide and collection cavity respectively, avoiding the situation where the rubber sticks together due to its high temperature, making it inconvenient to separate the two rubbers after cooling.

[0004] While the aforementioned rubber open mill can prevent rubber from sticking together due to its high temperature, making it difficult to separate the two rubbers after cooling, the lack of lubrication for the journal of the mixing roller not only accelerates the wear of the journal and bearing, but may also cause the journal to overheat, seize, or even cause serious malfunctions such as the mixing roller suddenly stopping. Such sudden shutdowns not only cause production interruptions and reduce work efficiency, but may also cause irreversible damage to the equipment itself and increase maintenance costs. Utility Model Content

[0005] This utility model proposes an open-type rubber mixing machine for producing rubber tires, which solves the problem in related technologies of lack of lubrication of the neck of the mixing roller, which leads to the sudden stop of the mixing roller.

[0006] The technical solution of this utility model is as follows: an open-type rubber tire production mixing machine includes a base plate, two support plates are fixedly connected to the top of the base plate, two first motors are fixedly connected to the right side of the support plate, a mixing roller is fixedly connected to the output end of each of the two first motors, a linear module is installed between the tops of the two support plates, a lubrication mechanism is provided on the left side of the support plate, and a metering mechanism is provided at the bottom of the linear module.

[0007] The lubrication mechanism includes a control component and two sets of conveying components. The control component is located on the left side of the support plate, and the conveying components are located behind the control component.

[0008] Preferably, the control component includes a rotating shaft, a first synchronous pulley, and a photosensitive sensor. The right end of the rotating shaft is rotatably connected to the left side of the left support plate. The right end of the first synchronous pulley is fixedly connected to the left end of one of the mixing rollers. The right side of the photosensitive sensor is installed on the left side of the left support plate. The left end of the rotating shaft is fixedly connected to a second synchronous pulley. A synchronous belt is sleeved between the first synchronous pulley and the second synchronous pulley, and a groove is formed on the outer side of the synchronous belt.

[0009] Preferably, the conveying assembly includes a sleeve and a second motor. The inner side of the sleeve is fixedly connected to the outer side of the support plate, and the inner side of the second motor is fixedly connected to the outer side of the support plate. A movable rod is slidably connected inside the sleeve. A piston is fixedly connected to the rear end of the movable rod, and a connecting plate is fixedly connected to the front end of the movable rod. A spring is provided inside the sleeve. An oil extraction pipe is fixedly connected to the outer side of the sleeve, and a conveying pipe is fixedly connected to the top of the sleeve. A cam is fixedly connected to the output end of the second motor.

[0010] Preferably, the two ends of the mixing roller are rotatably connected to the inner sides of the two support plates, and the photosensitive sensor is flush with the groove.

[0011] Preferably, the cam abuts against the connecting plate, and the piston is slidably connected to the inside of the sleeve on its outer side.

[0012] Preferably, one end of the spring is fixedly connected to the inner wall of the sleeve, and the other end of the spring is fixedly connected to the middle of the piston.

[0013] Preferably, a one-way valve is installed on the top of the sleeve and the outside of the sleeve, and a switch valve is installed on the outside of the delivery pipe.

[0014] Preferably, the end of the conveying pipe away from the sleeve is located at the top of the mixing roller.

[0015] Preferably, the quantitative mechanism includes a dispensing box, the bottom of which is fixedly connected to the bottom of the linear module. A lead screw is threaded inside the dispensing box, and an adjusting plate is rotatably connected to the outside of the lead screw. The top of the adjusting plate has multiple discharge holes.

[0016] Preferably, the adjusting plate is slidably connected to the inside of the material distribution box on the outside, and the diameter of the discharge hole gradually increases.

[0017] The working principle and beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the lubrication mechanism delivers lubricating oil to the journal of the mixing roller, avoiding wear on the journal during long-term, high-load operation, which could lead to overheating, jamming, or even serious malfunctions such as sudden shutdown of the mixing roller. This reduces downtime and improves work efficiency. At the same time, the control component controls the conveying component to deliver a fixed amount of lubricating oil to the journal of the mixing roller at regular intervals, avoiding lubricating oil waste and improving resource utilization efficiency.

[0019] 2. In this utility model, the size of the discharge hole can be adjusted by the quantitative mechanism. At the same time, with the cooperation of the linear module, the compounding agent is evenly sprinkled on the piled rubber along the axis of the mixing roller, so that the rubber is covered with the compounding agent. This will shorten the powdering time, facilitate the dispersion of the compounding agent in the material, and improve the mixing efficiency. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a side view of the external structure of the support plate of this utility model;

[0023] Figure 3 This is a top view of the external structure of the lubrication mechanism of this utility model;

[0024] Figure 4 This is a top view of the internal structure of the conveying assembly of this utility model;

[0025] Figure 5 This is an exploded view of the internal structure of the quantitative mechanism of this utility model;

[0026] Figure 6 This utility model Figure 1 Enlarged diagram of point A in the middle.

[0027] In the diagram: 1. Base plate; 2. Support plate; 3. First motor; 4. Mixing roller; 5. Linear module; 6. Lubrication mechanism; 7. Control component; 71. Rotating shaft; 72. Synchronous pulley one; 73. Photosensitive sensor; 74. Synchronous pulley two; 75. Synchronous belt; 76. Groove; 8. Conveying component; 81. Sleeve; 82. Second motor; 83. Movable rod; 84. Piston; 85. Connecting plate; 86. Spring; 87. Oil extraction pipe; 88. Conveying pipe; 89. One-way valve; 810. Switch valve; 811. Cam; 9. Metering mechanism; 91. Distributor box; 92. Lead screw; 93. Adjusting plate; 94. Discharge hole. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0029] Example 1

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, this embodiment proposes an open-type rubber mixing mill for producing rubber tires, including a base plate 1, two support plates 2 fixedly connected to the top of the base plate 1, two first motors 3 fixedly connected to the right side of the right support plate 2, mixing rollers 4 fixedly connected to the output ends of the two first motors 3, a linear module 5 installed between the tops of the two support plates 2, a lubrication mechanism 6 provided on the left side of the left support plate 2, and a metering mechanism 9 provided at the bottom of the linear module 5.

[0031] The lubrication mechanism 6 includes a control component 7 and two sets of conveying components 8. The control component 7 is located on the left side of the left support plate 2, and the conveying components 8 are located on the rear side of the control component 7.

[0032] The control component 7 includes a rotating shaft 71, a first synchronous pulley 72, and a photosensitive sensor 73. The right end of the rotating shaft 71 is rotatably connected to the left side of the left support plate 2. The right end of the first synchronous pulley 72 is fixedly connected to the left end of one of the mixing rollers 4. The right side of the photosensitive sensor 73 is installed on the left side of the left support plate 2. The left end of the rotating shaft 71 is fixedly connected to a second synchronous pulley 74. A synchronous belt 75 is sleeved between the first synchronous pulley 72 and the second synchronous pulley 74. A groove 76 is provided on the outer side of the synchronous belt 75.

[0033] The conveying assembly 8 includes a sleeve 81 and a second motor 82. The inner side of the sleeve 81 is fixedly connected to the outer side of the support plate 2, and the inner side of the second motor 82 is fixedly connected to the outer side of the support plate 2. A movable rod 83 is slidably connected inside the sleeve 81. A piston 84 is fixedly connected to the rear end of the movable rod 83, and a connecting plate 85 is fixedly connected to the front end of the movable rod 83. A spring 86 is provided inside the sleeve 81. An oil extraction pipe 87 is fixedly connected to the outer side of the sleeve 81. A conveying pipe 88 is fixedly connected to the top of the sleeve 81. A cam 811 is fixedly connected to the output end of the second motor 82.

[0034] The purpose of this setup is that, during use, the rubber raw material is first placed on top of the two sets of mixing rollers. The first motor 3 is then started, driving the two sets of mixing rollers to rotate, facilitating the open mixing of the rubber compound. The linear module 5 is then started, driving the metering mechanism 9 to evenly distribute the compounding agent onto the rubber raw material. To prevent wear on the journals during prolonged, high-load operation, which could lead to overheating, jamming, or even a sudden stoppage of the mixing roller 4, one of the mixing rollers 4 rotates, driving the first synchronous pulley 72 to rotate. Under the action of the synchronous belt 75, the second synchronous pulley 74 and the rotating shaft 71 rotate synchronously. When the groove 76 on the synchronous belt 75 is aligned with the photosensitive sensor 73, the light intensity changes, causing a decrease in the sensor's internal resistance and an increase in the current in the circuit. This causes the controller to start the second motor 82. When the groove 76 is not aligned with the photosensitive sensor 73, the resistance increases and the current decreases, at which point the motor automatically shuts off. This change is monitored in real time by the controller. Once a specific change in current and voltage is detected, the controller immediately starts the second motor 82. Machine 82 drives cam 811 to rotate, opening the switch valve 810 on the delivery pipe 88, thus ensuring the delivery pipe 88 is unobstructed. When cam 811 abuts against connecting plate 85, it compresses connecting plate 85. Connecting plate 85 then drives movable rod 83 to push piston 84 and compress spring 86. At this time, sleeve 81 is under negative pressure, and external lubricating oil enters sleeve 81 from oil extraction pipe 87. When cam 811 is not abutting against connecting plate 85, the spring 86 returns to its original position due to the lack of a limit switch on the side of connecting plate 85 away from movable rod 83, pushing outward piston 84. At this time, the internal pressure of the sleeve 81 increases, and the lubricating oil in the sleeve 81 is squeezed into the conveying pipe 88 by the piston 84 and transported to the journal of the mixing roller 4 along the conveying pipe 88. After lubrication is completed, the switch valve 810 is closed, and the conveying assembly 8 stops running. At this time, the inside of the conveying pipe 88 is sealed, and the lubricating oil cannot be discharged. Consequently, the spring 86 cannot push the piston 84 to move, thus ensuring that the piston 84 always squeezes the spring 86 and ensuring that the rotation of the cam 811 is not affected. In this embodiment, the photosensitive sensor 73 is a GL5537 and the controller is a PLC controller.

[0035] Preferably, the two ends of the mixing roller 4 are rotatably connected to the inner sides of the two support plates 2 respectively, and the photosensitive sensor 73 is flush with the groove 76. The purpose of this arrangement is that the rotatable connection between the mixing roller 4 and the support plate 2 makes the mixing roller 4 rotate stably. When the photosensitive sensor 73 is aligned with the groove 76, the resistance decreases and the current increases, so that the controller can start the two second motors 82.

[0036] Preferably, the cam 811 abuts against the connecting plate 85, and the piston 84 is slidably connected to the inside of the sleeve 81. The purpose of this arrangement is that the cam 811 abuts against the connecting plate 85 so that the cam 811 can intermittently push the connecting plate 85 to squeeze out the lubricating oil inside the sleeve 81. The piston 84 is slidably connected to the sleeve 81 so that the piston 84 can slide stably.

[0037] Preferably, one end of the spring 86 is fixedly connected to the inner wall of the sleeve 81, and the other end of the spring 86 is fixedly connected to the middle of the piston 84. The purpose of this arrangement is that the spring 86 provides elastic force for the piston 84 to reset.

[0038] Preferably, a one-way valve 89 is installed on the top of the sleeve 81 and the outside of the sleeve 81, and a switch valve 810 is installed on the outside of the delivery pipe 88. The purpose of this arrangement is that the one-way valve 89 allows lubricating oil to enter only and not exit or exit only and not enter, and the switch valve 810 can control the opening and closing of the delivery pipe 88.

[0039] Preferably, the end of the conveying pipe 88 away from the sleeve 81 is located at the top of the mixing roller 4. The purpose of this arrangement is to enable the lubricating oil to be delivered to the journal of the mixing roller 4.

[0040] Example 2

[0041] like Figure 1 and Figure 5 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes a quantitative mechanism 9 including a dispensing box 91. The bottom of the dispensing box 91 is fixedly connected to the bottom of the linear module 5. A lead screw 92 is threaded inside the dispensing box 91. An adjusting plate 93 is rotatably connected to the outside of the lead screw 92. Multiple discharge holes 94 are opened on the top of the adjusting plate 93.

[0042] The purpose of this setup is that, during use, by rotating the lead screw 92, the adjusting plate 93 is moved. By adjusting the position of the adjusting plate 93, different diameter discharge holes 94 are aligned with the discharge port of the distribution box 91, which can achieve precise control of the amount of compounding agent added. Then, by activating the linear module 5, the compounding agent is evenly spread on the rubber raw material, which also improves the overall efficiency and quality of the mixing operation. At the same time, the inside of the distribution box 91 is frustum-shaped, which avoids the compounding agent from accumulating inside and being unable to be discharged.

[0043] Preferably, the adjusting plate 93 is slidably connected to the inside of the dispensing box 91, and the diameter of the discharge hole 94 gradually increases. The purpose of this arrangement is that the adjusting plate 93 is slidably connected to the dispensing box 91, so that the dispensing box 91 can limit its movement. The diameter of the discharge hole 94 gradually increases, which can achieve precise control of the amount of compounding agent added.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An open-type rubber mixing mill for producing rubber tires, characterized in that, Includes a base plate (1), the top of which is fixedly connected to two support plates (2), the right side of which is fixedly connected to two first motors (3), the output ends of the two first motors (3) are fixedly connected to a mixing roller (4), a linear module (5) is installed between the tops of the two support plates (2), a lubrication mechanism (6) is provided on the left side of the left support plate (2), and a metering mechanism (9) is provided at the bottom of the linear module (5); The lubrication mechanism (6) includes a control component (7) and two sets of conveying components (8). The control component (7) is located on the left side of the support plate (2), and the conveying components (8) are located on the rear side of the control component (7).

2. The open-type rubber mixing mill for producing rubber tires according to claim 1, characterized in that, The control component (7) includes a rotating shaft (71), a first synchronous wheel (72), and a photosensitive sensor (73). The right end of the rotating shaft (71) is rotatably connected to the left side of the left support plate (2). The right end of the first synchronous wheel (72) is fixedly connected to the left end of one of the mixing rollers (4). The right side of the photosensitive sensor (73) is installed on the left side of the left support plate (2). The left end of the rotating shaft (71) is fixedly connected to a second synchronous wheel (74). A synchronous belt (75) is sleeved between the first synchronous wheel (72) and the second synchronous wheel (74). A groove (76) is opened on the outer side of the synchronous belt (75).

3. The open-type rubber mixing mill for producing rubber tires according to claim 1, characterized in that, The conveying assembly (8) includes a sleeve (81) and a second motor (82). The inner side of the sleeve (81) is fixedly connected to the outer side of the support plate (2), and the inner side of the second motor (82) is fixedly connected to the outer side of the support plate (2). A movable rod (83) is slidably connected inside the sleeve (81). A piston (84) is fixedly connected to the rear end of the movable rod (83). A connecting plate (85) is fixedly connected to the front end of the movable rod (83). A spring (86) is provided inside the sleeve (81). An oil extraction pipe (87) is fixedly connected to the outer side of the sleeve (81). A conveying pipe (88) is fixedly connected to the top of the sleeve (81). A cam (811) is fixedly connected to the output end of the second motor (82).

4. The open-type rubber mixing mill for producing rubber tires according to claim 2, characterized in that, The two ends of the mixing roller (4) are rotatably connected to the inner sides of the two support plates (2), and the photosensitive sensor (73) is flush with the groove (76).

5. The open-type rubber mixing mill for producing rubber tires according to claim 3, characterized in that, The cam (811) abuts against the connecting plate (85), and the piston (84) is slidably connected to the outside of the sleeve (81) inside.

6. The open-type rubber mixing mill for producing rubber tires according to claim 3, characterized in that, One end of the spring (86) is fixedly connected to the inner wall of the sleeve (81), and the other end of the spring (86) is fixedly connected to the middle of the piston (84).

7. The open-type rubber mixing mill for producing rubber tires according to claim 3, characterized in that, One-way valves (89) are installed on the top of the sleeve (81) and on the outside of the sleeve (81), and a switch valve (810) is installed on the outside of the delivery pipe (88).

8. The open-type rubber mixing mill for producing rubber tires according to claim 3, characterized in that, The end of the conveying pipe (88) away from the sleeve (81) is located on the top of the mixing roller (4).

9. The open-type rubber mixing mill for producing rubber tires according to claim 1, characterized in that, The quantitative mechanism (9) includes a dispensing box (91), the bottom of which is fixedly connected to the bottom of the linear module (5). A lead screw (92) is threaded inside the dispensing box (91), and an adjusting plate (93) is rotatably connected to the outside of the lead screw (92). Multiple discharge holes (94) are opened on the top of the adjusting plate (93).

10. The open-type rubber mixing mill for producing rubber tires according to claim 9, characterized in that, The adjusting plate (93) is slidably connected to the inside of the material distribution box (91) on the outside, and the diameter of the discharge hole (94) increases from small to large.

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