High elasticity polyurethane damping material raw material proportioning stirring device

Abstract

The utility model relates to the technical field of stirring device, concretely relates to high elasticity polyurethane damping material raw materials proportioning stirring device, including stirring jar, the bottom discharge end fixed mounting of stirring jar has the unloading valve, the top surface of stirring jar detachably installs the top cover, installs the speed regulating motor on the top cover, the output shaft end of speed regulating motor is connected with long axle through the speed increaser, long axle is fixed successively with a plurality of broken blades, stirring vane and turbulence vane from top to bottom on it, one side of stirring jar is provided with the metering pump, the top of stirring jar is provided with spiral feeder, and the discharge end between spiral feeder and stirring jar is linked through solid raw material pipe, and spiral feeder is provided with a plurality of feeding hoppers for feeding on, the bottom end fixed mounting of feeding hopper has feeding pipe, and the fixed mounting of feeding pipe has electric valve, and the feeding hopper part is weighed through the weighing sensor. The utility model is convenient for raw material cooperation and mixed preparation operation, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of stirring device technology, and more specifically, to a stirring device for proportioning and mixing raw materials of high elastic polyurethane damping material. Background Technology

[0002] In the field of high-elasticity polyurethane damping material production, the accuracy of raw material proportioning and the uniformity of mixing directly determine the damping performance, elastic recovery rate and mechanical stability of the material. Its production requires precise mixing of solid and liquid raw materials such as polyols, isocyanates, catalysts and fillers in strict proportions, and then thorough stirring to achieve uniform dispersion of components. When performing stirring operations, corresponding stirring devices are usually used.

[0003] Traditional mixing devices rely heavily on manual weighing and feeding of solid raw materials, lacking an integrated and precise metering structure. Manual feeding is prone to errors due to operation and material residue, leading to discrepancies between the actual feed amount and the formula. Furthermore, multiple solid components require separate weighing and feeding, which is time-consuming, labor-intensive, and prone to confusion. Additionally, traditional devices have independent feeding channels for solid and liquid raw materials, requiring manual handling of solid materials to the tank opening for feeding, resulting in high labor intensity and dust pollution. Therefore, we propose a high-elasticity polyurethane damping material raw material proportioning and mixing device. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for the proportioning of raw materials for high-elasticity polyurethane damping materials, so as to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A mixing device for high-elasticity polyurethane damping material raw materials includes a mixing tank. A discharge valve is fixedly installed at the bottom discharge end of the mixing tank. A top cover is detachably installed on the top surface of the mixing tank. A speed-regulating motor is installed on the top cover. The output shaft of the speed-regulating motor is connected to a vertically arranged long shaft through a speed-increasing gearbox. The long shaft extends into the mixing tank. Multiple crushing blades, stirring blades, and turbulence blades are fixedly installed on the long shaft from top to bottom. A metering pump for metering and conveying liquid raw materials is installed on one side of the mixing tank. A screw feeder is installed above the mixing tank. The discharge end of the screw feeder is connected to the mixing tank through a solid raw material pipe. Multiple feed hoppers for feeding are installed on the screw feeder. A feed pipe is fixedly installed at the bottom of each feed hopper. An electric valve is fixedly installed on the feed pipe. The feed hopper is weighed by a weighing sensor.

[0006] Preferably, the output shaft of the speed-regulating motor is connected to the input end of the speed increaser, and the output end of the speed increaser is connected to the long shaft; This setting allows for increased engine speed by utilizing the speed increaser.

[0007] Preferably, a fixing sleeve is fixedly installed at the center of each of the plurality of crushing blades, the plurality of stirring blades and the plurality of turbulence blades, and the fixing sleeve is detachably installed on the long shaft by a plurality of fastening bolts; This setting facilitates loading and unloading operations.

[0008] Preferably, the top end of the solid raw material pipe is fixedly installed at the discharge end of the screw feeder, the bottom end of the solid raw material pipe is installed on the top cover and connected to the interior of the mixing tank, and a normally open valve is fixedly installed on the solid raw material pipe.

[0009] Preferably, the crushing blade is located near the discharge end of the solid raw material pipe, and the metering pump is connected to the mixing tank via a liquid pipeline; This setup facilitates the proper crushing of input materials using crushing blades, and the liquid pipeline facilitates the transport of liquid raw materials.

[0010] Preferably, a pressure relief valve is fixedly installed on the top cover, and a flushing pipe is also fixedly installed on the top of the mixing tank; This feature allows for pressure relief using the pressure relief valve, while the flushing pipe can be used to pass water for cleaning.

[0011] Preferably, a support ring is fixedly installed on the bottom wall of the mixing tank by multiple support rods, and the bottom end of the long shaft is located inside the support ring and rotatably connected to the support ring. This feature provides support for the long shaft, ensuring greater stability during high-speed rotation.

[0012] Preferably, multiple vertical pipes are fixedly installed on the cylinder of the screw feeder, the feed pipe is inserted into the vertical pipe, a support beam is provided above the screw feeder, multiple support rods are fixedly installed at the bottom of the feed hopper, and the weighing sensor is located between the corresponding support rod and the support beam. This setting enables the use of load cells to perform weighing operations.

[0013] Preferably, a control host is provided on one side of the mixing tank, and the control host is equipped with a touch screen.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model achieves integrated and precise metering and feeding of solid and liquid raw materials by setting up a screw feeder, multiple feeding hoppers on the screw feeder, feeding pipes at the bottom of the feeding hoppers, electric valves on the feeding pipes, weighing sensors between the support rods and support beams, and metering pumps and liquid pipelines on one side of the mixing tank. The weighing sensors monitor the weight of solid raw materials in the feeding hoppers in real time, and the metering pumps precisely control the delivery volume of liquid raw materials. There is no need for manual weighing and handling, which reduces the ratio error, avoids dust pollution, and reduces labor intensity.

[0015] 2. This utility model achieves graded processing and efficient mixing of materials by using a speed-regulating motor, speed increaser, long shaft extending into the mixing tank on the top cover, and crushing blades, stirring blades, and turbulence blades installed sequentially from top to bottom on the long shaft, in conjunction with the support ring providing stable support for the long shaft. The crushing blades crush solid agglomerates, the stirring blades promote component fusion, and the turbulence blades eliminate "dead zones" in the tank, thereby improving mixing uniformity and shortening mixing time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is one of the partial structural schematic diagrams of this utility model; Figure 3 This is a second schematic diagram of a partial structure of this utility model; The meanings of the labels in the diagram are as follows: 1. Mixing tank; 10. Discharge valve; 11. Flushing pipe; 12. Top cover; 13. Pressure relief valve; 14. Speed ​​increaser; 15. Speed ​​regulating motor; 16. Long shaft; 161. Crusher blade; 162. Mixing blade; 163. Turbulence blade; 164. Fixing sleeve; 17. Support ring; 171. Support connecting rod; 18. Liquid pipeline; 181. Metering pump; 19. Solid raw material pipeline; 191. Normally open valve; 2. Screw feeder; 20. Vertical pipe; 21. Support beam; 22. Feed hopper; 23. Support rod; 24. Weighing sensor; 25. Feed pipe; 251. Electric valve; 3. Control host; 30. Touch screen. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0018] Please see Figures 1-3 This utility model provides a technical solution: a mixing device for high-elasticity polyurethane damping material raw material proportioning, including a mixing tank 1. A discharge valve 10 is fixedly installed at the bottom discharge end of the mixing tank 1. A top cover 12 is detachably installed on the top surface of the mixing tank 1. A speed-regulating motor 15 is installed on the top cover 12. The output shaft end of the speed-regulating motor 15 is connected to a vertically arranged long shaft 16 through a speed increaser 14. The long shaft 16 extends into the mixing tank 1. Multiple crushing blades 161, stirring blades 162, and turbulence blades 163 are fixedly installed on the long shaft 16 from top to bottom. A metering pump 181 for metering and conveying liquid raw materials is provided on one side of the mixing tank 1. The metering pump 181 has an inlet or outlet end. Equipped with a flow meter, the flow meter can also perform flow measurement operations simultaneously. A screw feeder 2 is installed above the mixing tank 1. The discharge end of the screw feeder 2 is connected to the mixing tank 1 through a solid raw material pipe 19. The screw feeder 2 is equipped with multiple feed hoppers 22 for feeding. A feed pipe 25 is fixedly installed at the bottom of the feed hopper 22. An electric valve 251 is fixedly installed on the feed pipe 25. The feed hopper 22 is weighed by a weighing sensor 24. After being weighed by the feed hopper 22, the solid raw material is conveyed to the mixing tank 1 by the screw feeder 2. The liquid raw material is accurately conveyed by a metering pump 181. With the help of the graded blades, the raw material is accurately proportioned and efficiently mixed, avoiding human operation errors.

[0019] In this embodiment, the output shaft of the speed-regulating motor 15 is connected to the input end of the speed-increasing gearbox 14, and the output end of the speed-increasing gearbox 14 is connected to the long shaft 16, so that the speed-increasing gearbox 14 can amplify the speed of the speed-regulating motor 15 and transmit it to the long shaft 16, thereby increasing the rotation speed of the crushing blade 161, the stirring blade 162 and the turbulence blade 163, enhancing the crushing effect on solid raw materials and the mixing intensity of materials, and improving the mixing efficiency.

[0020] like Figure 1 and Figure 3 As shown, a fixing sleeve 164 is fixedly installed at the center of multiple crushing blades 161, multiple stirring blades 162 and multiple turbulence blades 163. The fixing sleeve 164 is detachably installed on the long shaft 16 by multiple fastening bolts, so that the operator can remove the fixing sleeve 164 by removing the fastening bolts, and conveniently install, remove or replace blades and blades of different types and specifications to adapt to the stirring needs of different raw materials and reduce maintenance difficulty.

[0021] Specifically, the top end of the solid raw material pipe 19 is fixedly installed at the discharge end of the screw feeder 2, and the bottom end of the solid raw material pipe 19 is installed on the top cover 12 and connected to the inside of the mixing tank 1. A normally open valve 191 is fixedly installed on the solid raw material pipe 19 so that the solid raw material conveyed by the screw feeder 2 can accurately enter the mixing tank 1 through the solid raw material pipe 19. The normally open valve 191 can control the opening and closing of the conveying channel, which is convenient for maintenance or pausing feeding.

[0022] Furthermore, the crushing blade 161 is located near the discharge end of the solid raw material pipe 19. The metering pump 181 is connected to the mixing tank 1 through the liquid pipeline 18. The inlet end of the metering pump 181 is connected to the external liquid conveying pipeline, so that the solid raw material can be crushed by the crushing blade 161 as soon as it is put into the mixing tank 1, avoiding agglomeration. The liquid pipeline 18 provides a stable conveying path for the liquid raw material, ensuring efficient fusion of liquid and solid raw materials.

[0023] like Figure 3 As shown, a pressure relief valve 13 is fixedly installed on the top cover 12, and a flushing pipe 11 is also fixedly installed on the top tank body of the mixing tank 1. The flushing pipe 11 is connected to an external water supply pipeline with valve control. The pressure relief valve 13 can release the high-pressure gas in the mixing tank 1 in time to avoid damage to the tank body due to pressure. The flushing pipe 11 can be used to flush the residual materials in the tank with clean water to keep the equipment clean and reduce the risk of cross-contamination of materials.

[0024] like Figure 3 As shown, a support ring 17 is fixedly installed on the bottom wall of the mixing tank 1 by multiple support rods 171. The bottom end of the long shaft 16 is located inside the support ring 17 and is rotatably connected to the support ring 17, so that the support ring 17 provides bottom support for the long shaft 16, counteracts the radial shaking when the long shaft 16 rotates at high speed, ensures the stability of the blade and the blade rotation, and extends the service life of the equipment.

[0025] In addition, multiple vertical pipes 20 are fixedly installed on the cylinder of the screw feeder 2. The feed pipe 25 is inserted into the vertical pipe 20. A support beam 21 is set above the screw feeder 2. Multiple support rods 23 are fixedly installed at the bottom of the feed hopper 22. The weighing sensor 24 is set between the corresponding support rod 23 and the support beam 21, so that the feed pipe 25 can be inserted into the vertical pipe 20 to realize the quick installation of the feed hopper 22. The weighing sensor 24 can monitor the weight of the raw materials in the feed hopper 22 in real time, accurately control the feeding amount, and improve the proportioning accuracy.

[0026] It is worth noting that a control host 3 is installed on one side of the mixing tank 1. The control host 3 is equipped with a touch screen 30, which allows operators to set parameters and control the operation of components such as the speed regulating motor 15, metering pump 181, screw feeder 2, and electric valve 251 through the touch screen 30, thereby realizing automated feeding and mixing, reducing manual operation costs and improving ease of operation.

[0027] It is worth noting that the operator inputs parameters such as raw material ratio and stirring speed through the touch screen 30. After the signal is transmitted to the control host 3, the host parses and generates instructions and stores the data. At the same time, it receives feedback from the components and displays the operating status on the touch screen 30, realizing visual monitoring. The control host 3 instructs the electric valve 251 to close, and the feed hopper 22 is weighed by the weighing sensor 24 between the support rod 23 and the support beam 21. The data is transmitted to the control host 3 in real time until the weight reaches the standard. After the metering is completed, the control host 3 starts the screw feeder 2, and at the same time the electric valve 251 opens. The raw materials are fed into the mixing tank 1 through the solid raw material pipe 19; the control host 3 sends a command to the metering pump 181 according to the set amount, the metering pump 181 runs, and feeds the material into the tank through the liquid pipe 18, while feeding back the actual delivery amount. The control host 3 dynamically adjusts the parameters to ensure accuracy; the control host 3 sends a speed command to the speed regulating motor 15 according to the characteristics of the raw materials. The speed regulating motor 15 drives the long shaft 16, the crushing blade 161, the stirring blade 162, and the turbulence blade 163 to rotate through the speed increaser 14. The speed can be adjusted as needed. After preparation is completed, the operator operates the discharge valve 10 to discharge the material.

[0028] Finally, it should be noted that the speed-regulating motor 15, metering pump 181, electric valve 251, screw feeder 2, control host 3, touch screen 30, weighing sensor 24, corresponding control system, and external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted controllers and power supplies, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0029] When using the high-elasticity polyurethane damping material raw material proportioning and mixing device of this utility model, the raw material proportion and stirring speed are set by the touch screen 30 of the control host 3, solid raw materials are added to the feed hopper 22, the weighing sensor 24 weighs in real time, and after the standard is reached, the control host 3 opens the electric valve 251 of the feed pipe 25; the screw feeder 2 is started, and the solid raw materials enter the tank through the solid raw material pipe 19, while the metering pump 181 sends liquid raw materials through the liquid pipeline 18. Start the speed regulating motor 15, which drives the long shaft 16, crushing blade 161, stirring blade 162, and turbulence blade 163 to rotate via the speed increaser 14. The support ring 17 ensures the stability of the long shaft. After stirring is completed, open the discharge valve 10 to discharge the material, and the pressure relief valve 13 balances the pressure inside the tank. After shutting down the equipment, flush the tank with water through flush pipe 11 for future use.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mixing device for raw material proportioning of high-elasticity polyurethane damping material, comprising a mixing tank (1), characterized in that: A discharge valve (10) is fixedly installed at the bottom discharge end of the mixing tank (1). A top cover (12) is detachably installed on the top surface of the mixing tank (1). A speed-regulating motor (15) is installed on the top cover (12). The output shaft of the speed-regulating motor (15) is connected to a vertically arranged long shaft (16) through a speed-increasing gearbox (14). The long shaft (16) extends into the mixing tank (1). Multiple crushing blades (161), stirring blades (162), and turbulence blades (163) are fixedly installed on the long shaft (16) from top to bottom. 1) A metering pump (181) for metering and conveying liquid raw materials is provided on one side; a screw feeder (2) is provided above the mixing tank (1), the discharge end of the screw feeder (2) is connected to the mixing tank (1) through a solid raw material pipe (19), the screw feeder (2) is provided with multiple feed hoppers (22) for feeding, the bottom end of the feed hopper (22) is fixedly installed with a feed pipe (25), an electric valve (251) is fixedly installed on the feed pipe (25), and the feed hopper (22) is weighed by a weighing sensor (24).

2. The high-elasticity polyurethane damping material raw material proportioning and stirring device according to claim 1, characterized in that: The output shaft of the speed-regulating motor (15) is connected to the input end of the speed-increasing gearbox (14), and the output end of the speed-increasing gearbox (14) is connected to the long shaft (16).

3. The high-elasticity polyurethane damping material raw material proportioning and stirring device according to claim 1, characterized in that: A fixing sleeve (164) is fixedly installed at the center of each of the multiple crushing blades (161), multiple stirring blades (162) and multiple turbulence blades (163). The fixing sleeve (164) is detachably installed on the long shaft (16) by multiple fastening bolts.

4. The high-elasticity polyurethane damping material raw material proportioning and stirring device according to claim 1, characterized in that: The top end of the solid raw material pipe (19) is fixedly installed at the discharge end of the screw feeder (2), the bottom end of the solid raw material pipe (19) is installed on the top cover (12) and connected to the interior of the mixing tank (1), and a normally open valve (191) is fixedly installed on the solid raw material pipe (19).

5. The high-elasticity polyurethane damping material raw material proportioning and stirring device according to claim 4, characterized in that: The crushing blade (161) is located near the discharge end of the solid raw material pipe (19), and the metering pump (181) is connected to the mixing tank (1) through a liquid pipe (18).

6. The high-elasticity polyurethane damping material raw material proportioning and stirring device according to claim 1, characterized in that: A pressure relief valve (13) is fixedly installed on the top cover (12), and a flushing pipe (11) is also fixedly installed on the top tank of the mixing tank (1).

7. The high-elasticity polyurethane damping material raw material proportioning and stirring device according to claim 1, characterized in that: The bottom wall of the mixing tank (1) is fixedly installed with a support ring (17) by multiple support rods (171), and the bottom end of the long shaft (16) is located inside the support ring (17) and is rotatably connected to the support ring (17).

8. The high-elasticity polyurethane damping material raw material proportioning and stirring device according to claim 1, characterized in that: The screw feeder (2) has multiple vertical pipes (20) fixedly installed on its cylinder. The feed pipe (25) is inserted into the vertical pipe (20). A support beam (21) is provided above the screw feeder (2). Multiple support rods (23) are fixedly installed at the bottom of the feed hopper (22). The weighing sensor (24) is located between the corresponding support rod (23) and the support beam (21).

9. The high-elasticity polyurethane damping material raw material proportioning and stirring device according to claim 1, characterized in that: A control host (3) is provided on one side of the mixing tank (1), and a touch screen (30) is provided on the control host (3).

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