Accurate proportioning and mixing equipment for rubber sealing ring material

Abstract

The utility model relates to the technical field of rubber processing equipment, in particular to rubber sealing ring material accurate proportioning and mixing equipment which comprises a support frame, a mixing barrel, a storage barrel, a mixing device, a batching device, a discharging device, a conveying device and an opening and closing device, the mixing barrel is rotatably mounted in the support frame, the mixing device is mounted in the mixing barrel, and the discharging device is mounted in the storage barrel. The discharging device is installed on the side wall of the supporting frame, materials in the material storage barrel are conveyed into the feeding hopper, the weight of the raw materials in the feeding hopper is monitored in real time through the weighing sensor, when a set value is reached, feeding is stopped, the weighing sensor monitors the weight of each raw material in real time, and the discharging device is used for discharging the raw materials. Required raw materials are proportioned in the feeding hopper in an accumulative weighing mode, the consistency of product quality is remarkably improved, after proportioning is completed, the electromagnetic valve on the discharging pipe is opened, meanwhile, the sealing plate is opened through the opening and closing device, and the materials in the feeding hopper enter the feeding frame below through the discharging pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber processing equipment, specifically to equipment for precise proportioning and mixing of rubber sealing ring materials. Background Technology

[0002] As is well known, rubber seals are widely used in industries such as manufacturing, automotive, and aerospace. Their performance directly depends on the formulation and mixing quality of the materials. In the traditional production process of rubber seals, the material ratio and mixing usually rely on manual operation or semi-automatic equipment, which has the following problems.

[0003] Traditional equipment often uses manual weighing or simple mechanical batching devices, which makes it difficult to achieve precise proportion control. Due to the large density difference between powdered and lumpy materials, the feed rate is easily inaccurate, which affects the consistency of the final product performance. The entire production process (from batching to mixing to discharge) relies heavily on manual intervention and lacks a unified control system for real-time monitoring and adjustment. Traditional mixing equipment usually uses single-shaft or open-type rubber mixing mills, which have insufficient shear force and low mixing efficiency, resulting in excessively long mixing time and low production efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a precise mixing and blending equipment for rubber sealing ring materials.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rubber sealing ring material precision proportioning and mixing equipment, including a support frame, a mixing cylinder, a storage tank, a mixing device, a batching device, a discharge device, a conveying device, and an opening and closing device. The mixing cylinder is rotatably installed inside the support frame, and the mixing device is installed inside the mixing cylinder. A feeding frame is installed at the top of the mixing cylinder, and the discharge device is installed on the side wall of the support frame. A sealing plate is installed at the top of the feeding frame through the opening and closing device. Two sets of support rings are installed on the outer walls of multiple sets of storage tanks. Support legs are installed at the four corners of the bottom wall, and bases are installed on the bottom walls of the support legs. The feeding device includes support rods, weighing sensors, horizontal plates, feed hoppers, discharge pipes, and solenoid valves. Support rods are installed on the top walls of both the left and right ends of the support frame. Weighing sensors are installed on the bottom walls of both sets of support rods. Horizontal plates are installed on the top walls of both sets of support rods. Feed hoppers are installed on the top walls of the horizontal plates. The discharge pipe is installed through the bottom wall of the feed hopper and through the horizontal plates. The solenoid valve is installed on the bottom wall of the discharge pipe. A control system is installed on one side wall of the support frame.

[0006] Furthermore, the present invention is improved in that the conveying device includes a conveying pipe, a spiral conveying wheel and a conveying motor. The bottom ends of multiple sets of storage hoppers are all inclinedly installed with the conveying pipe. The conveying motor is installed at one end of the conveying pipe. The output end of the conveying motor passes through the side wall of the conveying pipe and extends into the inner cavity where the spiral conveying wheel is installed. The output end of the conveying pipe is located above the feed hopper.

[0007] Furthermore, the present invention is improved in that the mixing device includes a temperature sensor, a pressure sensor, a mixing shaft, a mixing motor, and mixing blades. The temperature sensor and the pressure sensor are installed on the inner side wall of the mixing cylinder. Two sets of the mixing motors are symmetrically installed on the outer side wall of the mixing cylinder. The output end of the mixing motor passes through the side wall of the mixing cylinder and extends into the mixing cylinder where the mixing shaft is installed. The mixing blades are installed on the outer walls of both sets of the mixing shafts.

[0008] Furthermore, the present invention is improved in that the discharge device includes a discharge motor, a drive shaft and a U-shaped frame. The discharge motor is installed at the end of the support frame away from the control system. The output end of the discharge motor is installed through the side wall of the support frame and the drive shaft is installed thereon. The output end of the drive shaft is installed with the U-shaped frame. The U-shaped frame is fixedly connected to the end of the mixing cylinder near the mixing motor.

[0009] Furthermore, the present invention is improved in that the opening and closing device includes a fixed plate and an electric telescopic rod. The fixed plate is installed on the top wall of the feeding frame, and the electric telescopic rod is installed on the end of the fixed plate away from the feeding frame. The output end of the electric telescopic rod is fixedly connected to the top wall of the sealing plate, and the sealing plate slides through the fixed plate and is slidably connected to it.

[0010] Furthermore, an improvement of this utility model is that a set of protective covers is installed at the top of the multiple sets of conveying pipes.

[0011] Furthermore, an improvement of this utility model is that a flexible hose is installed on the bottom wall of the discharge pipe.

[0012] Furthermore, the present invention is improved in that the discharge motor, the conveying motor, and the mixing motor are all servo motors.

[0013] Compared with the prior art, this utility model provides a precise mixing and proportioning equipment for rubber sealing ring materials, which has the following beneficial effects:

[0014] This precision mixing equipment for rubber sealing ring materials uses a proportioning device and weighing sensors to monitor the weight of each raw material in real time. It employs cumulative weighing to complete the proportioning, ensuring that the amount of each raw material added is accurate to the target value. This precise proportioning significantly improves the quality consistency of the rubber sealing ring materials, avoiding product performance fluctuations caused by proportioning errors. The coordinated operation of the conveying device, solenoid valves, and opening / closing devices shortens the material preparation and feeding time. The entire production process is uniformly managed by the control system, achieving automated operation from material preparation to mixing and discharging, greatly reducing manual intervention and improving production efficiency.

[0015] This precision mixing equipment for rubber sealing ring materials uses a conveying device. The conveying motor drives the screw conveyor to rotate at a constant speed, which can evenly transport the raw materials in the storage tank to the top of the feed hopper, ensuring that the feed amount of each raw material is accurately controllable. The design of the screw conveyor, combined with the control system and the proportioning device, can strictly deliver raw materials according to the formula requirements, avoiding proportioning errors caused by overfeeding or underfeeding. The screw conveyor is suitable for conveying various types of materials, including powdery, granular, and lumpy materials, and has strong adaptability to meet the needs of different formulas.

[0016] This rubber sealing ring material precision mixing equipment utilizes a mixing and discharging device. Two sets of mixing motors are symmetrically installed, driving the mixing shaft and mixing blades simultaneously, improving shear force and mixing efficiency, and significantly shortening mixing time. Temperature and pressure sensors monitor the temperature and pressure inside the mixing drum in real time, ensuring the mixing process is always in optimal condition. The discharging motor automatically controls the tilt angle of the mixing drum via a drive shaft and U-shaped frame, eliminating the need for manual intervention and improving operational efficiency. Utilizing the gravity generated by the tilting of the mixing drum, it ensures that the rubber compound can be discharged quickly and completely, reducing the amount of material remaining in the mixing drum. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 In this utility model Figure 1 A magnified structural diagram of part A;

[0019] Figure 3 This is a three-dimensional structural diagram of the multiple storage bins and conveying device of this utility model;

[0020] Figure 4 This is a half-section three-dimensional structural diagram of the mixing cylinder and U-shaped frame of this utility model.

[0021] In the diagram: 1. Support frame; 2. Mixing cylinder; 3. Storage hopper; 4. Feed frame; 5. Sealing plate; 6. Support ring; 7. Support leg; 8. Base; 9. Support rod; 10. Weighing sensor; 11. Horizontal plate; 12. Feed hopper; 13. Discharge pipe; 14. Solenoid valve; 15. Control system; 16. Conveying pipe; 17. Screw conveyor wheel; 18. Conveying motor; 19. Mixing shaft; 20. Mixing motor; 21. Mixing blades; 22. Discharge motor; 23. Drive shaft; 24. U-shaped frame; 25. Fixing plate; 26. Electric telescopic rod; 27. Protective cover; 28. Hoses. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4This is a rubber sealing ring material precision mixing equipment, including a support frame 1, a mixing cylinder 2, a storage tank 3, a mixing device, a batching device, a discharge device, a conveying device, and an opening and closing device. The mixing cylinder 2 is rotatably installed inside the support frame 1, and the mixing device is installed inside the mixing cylinder 2. A feed frame 4 is installed at the top of the mixing cylinder 2. The discharge device is installed on the side wall of the support frame 1. A sealing plate 5 is installed at the top of the feed frame 4 via the opening and closing device. Two sets of support rings 6 are installed on the outer walls of multiple sets of storage tanks 3. Support legs 7 are installed at the four corners of the bottom walls of the two sets of support rings 6. A sealing plate 5 is installed on the bottom wall of the support legs 7. The base 8, the feeding device includes support rods 9, weighing sensors 10, a horizontal plate 11, a feed hopper 12, a discharge pipe 13, and a solenoid valve 14. Support rods 9 are installed on the top walls of both ends of the support frame 1. Weighing sensors 10 are installed on the bottom walls of both sets of support rods 9. The horizontal plate 11 is installed on the top walls of both sets of support rods 9. The feed hopper 12 is installed on the top wall of the horizontal plate 11. The discharge pipe 13 is installed through the horizontal plate 11 on the bottom wall of the feed hopper 12. The solenoid valve 14 is installed on the bottom wall of the discharge pipe 13. A control system 15 is installed on one side wall of the support frame 1. In this embodiment, during use, the target weight of each raw material is input into the control system 15 according to the formula parameters of the rubber sealing ring. The number of storage hoppers 3 can be increased or removed according to the type of raw material. Then, the control system 15 starts the conveying device below the storage hopper 3 to transport the material in the storage hopper 3 to the feeding hopper 12. The weight of the raw material in the feeding hopper 12 is monitored in real time by the weighing sensor 10. When the target value is reached, the control system 15 shuts down the corresponding conveying device and starts the second set of conveying devices to transport the second type of material. Multiple conveying devices convey materials in sequence. When the set value is reached, feeding stops, and the weighing sensor 10 monitors the weight in real time. The weight of each raw material is monitored, and the required raw materials are proportioned in the feed hopper 12 by cumulative weighing, which significantly improves the consistency of product quality. After the materials are proportioned, the solenoid valve 14 on the discharge pipe 13 is opened, and the sealing plate 5 is opened by the opening and closing device. The material in the feed hopper 12 enters the feed frame 4 below through the discharge pipe 13. All raw materials fall into the mixing drum 2 through the feed hopper 12. The mixing device is started, and the mixing drum 2 starts to rotate. At the same time, the rotor in the mixing device rotates at high speed to shear and mix the raw materials. After the mixing is completed, the control system 15 starts the discharge device to discharge the mixed rubber material from the mixing drum 2.

[0024] Preferably, in this embodiment, the conveying device includes a conveying pipe 16, a spiral conveying wheel 17, and a conveying motor 18. The bottom ends of multiple sets of storage bins 3 are all inclinedly installed with the conveying pipe 16. One end of the conveying pipe 16 is equipped with the conveying motor 18. The output end of the conveying motor 18 passes through the side wall of the conveying pipe 16 and extends into the inner cavity where the spiral conveying wheel 17 is installed. The output end of the conveying pipe 16 is located above the feed hopper 12. The control system 15 starts the conveying motor 18 on the corresponding storage bin 3, driving the spiral conveying wheel 17 to rotate. The spiral conveying wheel 17 conveys the raw materials in the storage bin 3 through the inclined conveying pipe 16 to the top of the feed hopper 12, and then enters the feed hopper 12. Driven by the conveying motor 18, the spiral conveying wheel 17 can uniformly convey the raw materials from the storage bin 3 to the feed hopper 12 at a constant speed, ensuring that the feed amount of each raw material is accurately controllable.

[0025] Preferably, in this embodiment, the mixing device includes a temperature sensor, a pressure sensor, a mixing shaft 19, a mixing motor 20, and mixing blades 21. The temperature sensor and the pressure sensor are installed on the inner wall of the mixing cylinder 2. Two sets of mixing motors 20 are symmetrically installed on the outer wall of the mixing cylinder 2. The output end of the mixing motor 20 passes through the side wall of the mixing cylinder 2 and extends into the mixing cylinder 2 where the mixing shaft 19 is installed. The mixing blades 21 are installed on the outer walls of both sets of mixing shafts 19. After the raw material enters the mixing cylinder 2 through the feed hopper 12, the control system 15 automatically detects the initial temperature and pressure inside the mixing cylinder 2, and... Record relevant data, start two sets of mixing motors 20, drive the mixing shaft 19 to rotate, and start the mixing blades 21 to shear and mix the raw materials. Temperature and pressure sensors monitor the temperature and pressure inside the mixing cylinder 2 in real time to ensure that the mixing conditions are always in the best state. The two sets of mixing motors 20 are symmetrically installed, driving the mixing shaft 19 and mixing blades 21 to operate simultaneously, which improves shearing force and mixing efficiency, shortens mixing time, and ensures the uniformity and consistency of rubber sealing ring material by precise temperature and pressure control combined with the efficient design of mixing blades 21. This significantly improves the physical properties of the final product, such as tensile strength, tear strength and aging resistance.

[0026] Preferably, in this embodiment, the discharge device includes a discharge motor 22, a drive shaft 23, and a U-shaped frame 24. The discharge motor 22 is installed at the end of the support frame 1 away from the control system 15. The output end of the discharge motor 22 is connected to the drive shaft 23 through the side wall of the support frame 1. The output end of the drive shaft 23 is connected to the U-shaped frame 24. The U-shaped frame 24 is fixedly connected to the end of the mixing drum 2 near the mixing motor 20. When mixing is completed, the control system 15 starts the discharge motor 22, driving the drive shaft 23 to rotate. The drive shaft 23, through the U-shaped frame 24, rotates the mixing drum 2. One end of the mixing drum 2 is raised, causing it to tilt at a certain angle. After tilting, the mixing drum 2 uses gravity to move the mixed rubber material from the feed frame 4 to the conveying mechanism or collection container. After the rubber material is completely discharged, the control system 15 stops the discharge motor 22, and the drive shaft 23 rotates in the opposite direction, so that the mixing drum 2 returns to a horizontal state and is ready for the next round of production. The discharge motor 22 automatically controls the tilt angle of the mixing drum 2 through the drive shaft 23 and the U-shaped frame 24 without manual intervention, which improves the operating efficiency. The gravity generated by the tilt of the mixing drum 2 ensures that the rubber material can be discharged quickly and completely, reducing the material remaining in the mixing drum 2.

[0027] Preferably, in this embodiment, the opening and closing device includes a fixed plate 25 and an electric telescopic rod 26. The fixed plate 25 is installed on the top wall of the feeding frame 4, and the electric telescopic rod 26 is installed on the end of the fixed plate 25 away from the feeding frame 4. The output end of the electric telescopic rod 26 is fixedly connected to the top wall of the sealing plate 5, and the sealing plate 5 is slidably connected to the fixed plate 25. Before the feeding begins, the control system 15 activates the electric telescopic rod 26, causing its output end to extend and move the sealing plate 5 to one side, so that the sealing plate 5 is away from the top of the feeding frame 4. After all the raw materials have been fed, the control system 15 activates the electric telescopic rod 26, causing its output end to retract and push the sealing plate 5 towards the feeding frame 4 to close the feeding frame 4, forming a sealed environment to prevent dust from flying or rubber leakage during the mixing process.

[0028] Preferably, in this embodiment, a set of protective covers 27 are installed at the top of the multiple sets of conveying pipes 16. Powdered materials (such as carbon black, sulfiding agents, etc.) are prone to dust generation due to airflow or vibration during the conveying process. Installing protective covers 27 can effectively prevent dust from overflowing and keep the working environment clean.

[0029] Preferably, in this embodiment, a flexible hose 28 is installed on the bottom wall of the discharge pipe 13. The flexible hose 28 is flexible and can adapt itself when the mixing drum 2 rotates and discharges material through the discharge device, so as to prevent it from affecting the subsequent feeding effect.

[0030] Preferably, in this embodiment, the discharge motor 22, the conveying motor 18, and the mixing motor 20 are all servo motors. Servo motors can achieve precise speed control, ensuring that the speed during the conveying, mixing, and discharge processes is always kept within the set value range. The conveying motor 18 can convey powdery or lumpy materials at a constant speed to avoid uneven feeding. The mixing motor 20 can adjust the rotation speed according to the formula requirements to optimize the shearing force and mixing effect. The discharge motor 22 can precisely control the tilt angle and speed of the mixing drum 2 to ensure that the rubber material is completely discharged.

[0031] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0032] 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. Rubber seal ring material precision mixing equipment, including support frame (1), mixing cylinder (2), storage barrel (3), mixing device, batching device, discharging device, conveying device and opening and closing device, characterized in that: The support frame (1) is rotatably installed with the mixing cylinder (2), the mixing cylinder (2) is installed with the mixing device, the top end of the mixing cylinder (2) is installed with the feeding frame (4), the side wall of the support frame (1) is installed with the discharging device, the top end of the feeding frame (4) is installed with the sealing plate (5) through the opening and closing device, the outer wall of the plurality of groups of storage barrels (3) is installed with two groups of support rings (6), the bottom wall of the two groups of support rings (6) is installed with support legs (7) at four corners, the bottom wall of the support leg (7) is installed with the base (8), the batching device comprises a support rod (9), a weighing sensor (10), a cross plate (11), a feeding hopper (12), a discharge pipe (13) and a solenoid valve (14), the top wall of the left and right two ends of the support frame (1) is installed with the support rod (9), the bottom wall of the two groups of support rods (9) is installed with the weighing sensor (10), the top wall of the two groups of support rods (9) is installed with the cross plate (11), the top wall of the cross plate (11) is installed with the feeding hopper (12), the bottom wall of the feeding hopper (12) is installed with the discharge pipe (13) penetrating through the cross plate (11), the bottom wall of the discharge pipe (13) is installed with the solenoid valve (14), and one end of the support frame (1) is installed with a control system (15).

2. The rubber sealing ring material precise proportioning and mixing equipment according to claim 1, characterized in that: The conveying device comprises a conveying pipe (16), a spiral conveying wheel (17) and a conveying motor (18), the bottom end of the plurality of groups of storage barrels (3) is installed with the conveying pipe (16) in an inclined manner, one end of the conveying pipe (16) is installed with the conveying motor (18), and the output end of the conveying motor (18) is installed with the spiral conveying wheel (17) penetrating through the side wall of the conveying pipe (16) and extending to the inner cavity. The output end of the conveying pipe (16) is located above the feeding hopper (12).

3. The rubber sealing ring material precise proportioning and mixing equipment according to claim 2, characterized in that: The mixing device comprises a temperature sensor, a pressure sensor, a mixing shaft (19), a mixing motor (20) and a mixing blade (21), the inner side wall of the mixing cylinder (2) is installed with the temperature sensor and the pressure sensor, the outer side wall of the mixing cylinder (2) is symmetrically installed with two groups of mixing motors (20), the output end of the mixing motor (20) is installed with the mixing shaft (19) penetrating through the side wall of the mixing cylinder (2) and extending into the mixing cylinder (2), and the outer wall of the two groups of mixing shafts (19) is installed with the mixing blade (21).

4. The rubber sealing ring material precise proportioning and mixing equipment according to claim 3, characterized in that: The discharging device comprises a discharging motor (22), a driving shaft (23) and a U-shaped frame (24), one end of the support frame (1) away from the control system (15) is installed with the discharging motor (22), the output end of the discharging motor (22) is installed with the driving shaft (23) penetrating through the side wall of the support frame (1), and the output end of the driving shaft (23) is installed with the U-shaped frame (24), and the U-shaped frame (24) is fixedly connected with one end of the mixing cylinder (2) close to the mixing motor (20).

5. The rubber sealing ring material precise proportioning and mixing equipment according to claim 4, characterized in that: The opening and closing device comprises a fixed plate (25) and an electric telescopic rod (26), the top wall of the feeding frame (4) is provided with the fixed plate (25), one end of the fixed plate (25) away from the feeding frame (4) is provided with the electric telescopic rod (26), and the output end of the electric telescopic rod (26) is fixedly connected with the top wall of the sealing plate (5); the sealing plate (5) is slidably connected with the fixed plate (25) and penetrates the fixed plate (25).

6. The rubber sealing ring material precise proportioning and mixing equipment according to claim 5, characterized in that: The top end of a plurality of groups of the material conveying pipes (16) is provided with a group of protective covers (27).

7. The rubber sealing ring material precise proportioning and mixing equipment according to claim 6, characterized in that: The bottom wall of the discharging pipe (13) is provided with a hose (28).

8. The rubber sealing ring material precise proportioning and mixing equipment according to claim 7, characterized in that: The discharging motor (22), the material conveying motor (18) and the mixing motor (20) are all servo motors.

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