Compensating feeding mechanism for foaming production of automobile bumper

Abstract

The utility model discloses a kind of compensating feed mechanisms for foaming production mixing, it is related to the technical field of compensating feed for foaming production mixing, including tank body, support plate, discharge pipeline, measuring pipe and support top head, the feed inlet is communicated with external storage by flange interface, raw material is controlled by electronic valve, and in the measurement of ultrasonic metering sensor, raw material flows into measuring pipe from feed pipe, the weighing valve at the bottom of measuring pipe is weighed by built-in sensor, when reaching appropriate quality, electric telescopic rod starts to operate, by piston push, the pressure in measuring pipe increases, until weighing valve overcomes spring support force, raw material is put into tank body, then support top head is contacted with weighing valve, electric telescopic rod stops pressing after detecting bottom signal, starts to reset, completes measurement function, six arc turbulence blocks evenly arranged in inner wall form turbulent flow by changing fluid direction, eliminate stirring dead angle.

Description

Technical Field

[0001] This utility model relates to the field of compensating material supply technology for mixing materials in foam production, specifically a compensating material supply mechanism for mixing materials in the foam production of automotive shock absorbers. Background Technology

[0002] The compensating feeding mechanism for mixing materials in the production of automotive bumper foam is a device used in the process of producing automotive bumper foam to accurately measure, mix, and stably supply various raw materials. It belongs to the field of compensating feeding technology for mixing materials in foam production. However, existing compensating feeding mechanisms for mixing materials in automotive bumper foam production have some shortcomings, such as: The automatic feeding device for polyurethane foam material described in application number CN202420442148.X has several drawbacks. Firstly, because the device relies on the coordinated operation of multiple components, a malfunction in any component could lead to high repair costs and difficulties. Secondly, due to its numerous functions, the manufacturing cost of the device may be relatively high. Furthermore, the device lacks a precise metering mechanism, making it unable to accurately measure raw materials and thus failing to meet production demands requiring high precision in raw material proportioning. Finally, its functionality is relatively limited, focusing only on improving mixing uniformity, and it is insufficient in areas such as simultaneous feeding of multiple raw materials and production of complex formulations. Summary of the Invention

[0003] The purpose of this utility model is to provide a compensating feeding mechanism for mixing materials in the production of automotive shock absorber foam, so as to solve the problems mentioned in the background art. Although the existing equipment on the market relies on the synergy of multiple components to improve the uniformity of mixing, it is difficult to maintain, has high cost, high manufacturing cost, lacks a precise metering mechanism, makes it difficult to meet the requirements of high-precision proportioning, has single function, and is not suitable for simultaneous feeding of multiple raw materials and complex formula production.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a compensating feeding mechanism for mixing materials in the production of automotive shock absorber foam, comprising a tank, a support plate, a discharge pipe, a metering pipe, and a support top; A metering mechanism is installed above the tank. The metering mechanism includes a metering tube, a feed pipe, an electronic valve, a feed interface, an electric telescopic rod, a fixing frame, an ultrasonic metering sensor, a piston, a limit plate, a weighing valve, a spring, and a support head. The feed interface is connected to an external storage tank via a flange interface. The raw material is controlled by the electronic valve and flows into the metering tube from the feed pipe, measured by the ultrasonic metering sensor. The weighing valve at the bottom of the metering tube weighs the material using a built-in sensor. When the appropriate mass is reached, the electric telescopic rod starts to operate, pushing down the piston and increasing the pressure inside the metering tube until the weighing valve overcomes the spring support force, allowing the raw material to be fed into the tank. Then, the support head contacts the weighing valve, and upon detecting a bottoming signal, the electric telescopic rod stops pressing down and begins to reset, completing the metering function.

[0005] As a preferred technical solution of this utility model, a support plate is fixedly connected to the bottom of the tank, and six support plates are evenly arranged in total. A motor is fixedly connected to the center position of the bottom of the tank, and the output shaft above the motor is fixedly connected to the stirring blade. By adopting the above technical solution, six evenly arranged support plates fixedly connected to the bottom of the tank increase the contact area between the equipment and the ground, effectively improving the stability of the tank and preventing the impact of shaking on metering accuracy and mixing effect during the mixing process. The motor at the bottom center is fixedly connected to the mixing blade. The motor drives the mixing blade to rotate, which can forcefully stir the raw materials in the tank through mechanical force, promote the full mixing of different components, and significantly improve the mixing efficiency and quality. At the same time, the design of integrating the motor into the bottom center of the tank simplifies the transmission structure, reduces space occupation, and makes the equipment installation and maintenance more convenient.

[0006] As a preferred technical solution of this utility model, the inner wall of the tank is fixedly connected with a baffle block, the baffle block has an arc-shaped structure, and six baffle blocks are evenly arranged in total; Using the above technical solution, the arc-shaped turbulence blocks fixedly connected to the inner wall of the tank are uniformly arranged arc-shaped structures. During the stirring process, they can change the flow direction of the raw materials, causing the raw materials to form a turbulent effect, effectively destroying the "dead corners" of the stirring, and allowing the raw materials to be fully mixed under the dual action of the stirring blades and the turbulence blocks, thereby improving the uniformity of the mixture. In addition, the uniformly arranged arc-shaped turbulence blocks can guide the raw materials to form a circulating flow path, avoiding local accumulation or stratification of the raw materials. It is especially suitable for mixing high-viscosity foaming raw materials and can ensure the consistency of the subsequent foaming reaction.

[0007] As a preferred technical solution of this utility model, a limiting plate is fixedly connected to the inner wall of the tank, one end of a spring is fixedly connected to the upper part of the limiting plate, and a weighing valve is fixedly connected to the other end of the spring. The weighing valve has a built-in weighing sensor and a conical structure that matches the opening at the top of the tank. Round rods are provided on both sides of the weighing valve, and the weighing valve is slidably connected to the limiting plate. A metering tube is connected to the top of the tank. Using the above technical solution, the limiting plate on the inner wall of the tank is connected to the weighing valve via a spring. The weighing valve has a built-in weighing sensor and a conical structure. This design achieves a "weight-triggered" feeding function through the elastic support force of the spring and the real-time monitoring of the weighing sensor. When the raw material in the metering tube reaches the set mass, the pressure generated by the piston pushes down overcomes the spring force, and the weighing valve opens to unload, ensuring that the feeding amount is accurate and controllable each time. The conical structure of the weighing valve fits tightly with the tank opening and can automatically reset under the action of the spring after unloading, effectively preventing raw material leakage. The sliding connection structure between the limiting plate and the round rods on both sides of the weighing valve restricts the movement trajectory of the valve, ensuring the accuracy and stability of the valve reset. At the same time, this structure, combined with the volume measurement of the ultrasonic metering sensor and the weight measurement of the weighing valve, forms a dual metering calibration mechanism of "volume + weight", further improving the reliability of the metering system.

[0008] As a preferred embodiment of this utility model, the metering tube is connected to six feed pipes on its side, and an electronic valve and a feed interface are connected above the feed pipes. The feed interface adopts a flange structure, and a fixing bracket is fitted on the outside of the feed pipes. An ultrasonic metering sensor is fixedly connected to the feed pipes below the electronic valves. An electric telescopic rod is fixedly connected above the metering tube, and the output end of the electric telescopic rod is fixedly connected to a piston below.

[0009] Using the above technical solution, the six feed pipes connected to the side of the metering tube can be connected to multiple raw material storage tanks simultaneously. The electronic valve above each feed pipe can independently control the feeding of the corresponding raw material, thereby realizing the synchronous metering and conveying of multiple raw materials. The feed interface adopts a flange structure, which facilitates quick connection and disassembly with external storage equipment, improving the versatility and flexibility of the equipment. The ultrasonic metering sensor below the electronic valve is fixedly connected to the feed pipe, which can monitor the inflow volume of raw materials in real time, providing data support for accurate metering. The electric telescopic rod above the metering tube drives the piston to move. By pushing the piston down, the pressure inside the metering tube is increased, and the raw material that reaches the set mass is accurately put into the tank, ensuring the stability and accuracy of the feeding process.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. Through innovative design, precise metering and intelligent control are achieved. The metering mechanism adopts a dual calibration mechanism of "volume + weight" combining ultrasonic metering sensors and weighing valves to ensure accurate feeding. The electric telescopic rod drives the piston to form a pressure-triggered unloading, which, together with spring reset and bottom contact detection of the support top, realizes automated metering. The six feeding pipes of the metering tube are independently controlled by electronic valves to feed multiple raw materials simultaneously. The flange structure feeding interface facilitates quick disassembly and assembly, meeting diverse production needs. 2. In terms of mixing efficiency and uniformity, the six support plates at the bottom of the tank ensure the stability of the equipment, the motor drives the stirring blades for mechanical forced mixing, and the six arc-shaped turbulence blocks evenly arranged on the inner wall create turbulence by changing the direction of the fluid, eliminating dead zones in the mixing. The synergistic effect of the two ensures that the high-viscosity raw materials are fully mixed, avoids stratification and accumulation, and significantly improves the mixing quality. 3. The reliability and functionality of the mechanism are equally outstanding. The conical structure of the weighing valve, in conjunction with the limit plate, ensures accurate resetting after unloading and prevents leakage; the fixing frame on the outside of the feed pipe enhances structural strength; the integrated design of the ultrasonic metering sensor and electronic valve enables real-time flow monitoring; and the overall modular design takes into account both ease of operation and equipment compatibility, effectively solving problems such as large metering errors and uneven mixing in traditional foaming and mixing processes, thus improving the efficiency and stability of automotive bumper foaming production. Attached Figure Description

[0011] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a schematic diagram of the tank body and support plate structure of this utility model; Figure 3 This is a side view of the cross-sectional structure of this utility model; Figure 4 This is a schematic diagram of the turbulence block and stirring blade of this utility model; Figure 5 This is a schematic diagram of the feeding interface and electric telescopic rod structure of this utility model.

[0012] In the diagram: 1. Tank body; 2. Support plate; 3. Discharge pipe; 4. Metering pipe; 5. Feed pipe; 6. Electronic valve; 7. Feeding interface; 8. Electric telescopic rod; 9. Fixing frame; 10. Ultrasonic metering sensor; 11. Piston; 12. Limiting plate; 13. Weighing valve; 14. Baffle block; 15. Stirring blade; 16. Motor; 17. Spring; 18. Support top. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1-5The present invention provides a compensating feeding mechanism for mixing materials in the production of foamed automotive shock absorbers, comprising a tank 1, a support plate 2, a discharge pipe 3, a metering pipe 4, a feed pipe 5, an electronic valve 6, a feed interface 7, an electric telescopic rod 8, a fixing frame 9, an ultrasonic metering sensor 10, a piston 11, a limiting plate 12, a weighing valve 13, a turbulence block 14, a stirring blade 15, a motor 16, a spring 17, and a support top 18. The metering mechanism above tank 1 is connected to an external storage tank via a flange through the feed inlet 7. The raw material, controlled by an electronic valve 6 and measured by an ultrasonic metering sensor 10, flows into the metering pipe 4 through the feed pipe 5. When the built-in sensor of the weighing valve 13 at the bottom of the metering pipe 4 detects that the raw material has reached the set mass, the electric telescopic rod 8 drives the piston 11 to push down, increasing the pressure inside the metering pipe 4 until the weighing valve 13 overcomes the supporting force of the spring 17 and discharges the material into tank 1. The bottom contact signal of the support top 18 triggers the electric telescopic rod 8 to reset, completing the precise metering with dual calibration of "volume + weight"; six... The uniformly arranged support plates 2 ensure equipment stability, the central motor 16 drives the stirring blades 15 for forced stirring, and the six uniformly arranged arc-shaped turbulence blocks 14 on the inner wall change the fluid direction to form turbulence, eliminating stirring dead corners and improving the uniformity of mixing; the metering pipe 4 has six side feed pipes 5 that control the synchronous metering of multiple raw materials through independent electronic valves 6, the flange structure feed interface 7 facilitates quick disassembly and assembly, the ultrasonic metering sensor 10 monitors the flow rate in real time, and the electric telescopic rod 8 and piston 11 work together to ensure stable feeding. The whole mechanism realizes the functional optimization of accurate metering, efficient mixing and multi-raw material collaborative feeding.

[0015] Working Principle: When using a compensating feeding mechanism for mixing materials in the production of automotive shock absorber foam, the external storage device is connected to the feed interface 7 via a flange interface. The raw material flows into the metering tube 4 after being controlled by the electronic valve 6 and initially measured by the ultrasonic metering sensor 10. The weighing valve 13, with its built-in sensor, monitors the weight in real time. When the set value is reached, the electric telescopic rod 8 drives the piston 11 to push down, increasing the pressure inside the metering tube 4. After overcoming the supporting force of the spring 17, the weighing valve 13 opens to unload the material. The bottoming signal of the support top 18 triggers the electric telescopic rod 8 to reset, and the weighing valve 13 closes under the action of the spring 17, completing the metering process. After the raw materials enter the tank 1, the bottom motor 16 drives the stirring blade 15 to force stirring. The six arc-shaped turbulence blocks 14 on the inner wall change the direction of the fluid to form turbulence, eliminating the dead corners of stirring and achieving uniform mixing. The six support plates 2 at the bottom of the tank 1 ensure stability. The six feed pipes 5 on the side of the metering pipe 4 are controlled by independent electronic valves 6 to synchronously meter and mix multiple raw materials. After being metered by the ultrasonic metering sensor 10, the raw materials are collected in the metering pipe 4 and uniformly fed into the tank 1. The whole process achieves accurate metering, uniform mixing and efficient feeding through dual calibration of "volume + weight", synergy of stirring and turbulence, and independent control of multiple channels.

[0016] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0017] 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. A compensating feeding mechanism for mixing materials in the production of automotive shock absorber foam, comprising a tank (1); characterized in that: A metering mechanism is provided above the tank (1). The metering mechanism includes a metering pipe (4), a feed pipe (5), an electronic valve (6), a feed interface (7), an electric telescopic rod (8), a fixing frame (9), an ultrasonic metering sensor (10), a piston (11), a limit plate (12), a weighing valve (13), a spring (17), and a support head (18). The feed interface (7) is connected to an external storage tank through a flange interface. The raw material is controlled by the electronic valve (6) and measured by the ultrasonic metering sensor (10) from the feed. The material pipe (5) flows into the metering pipe (4). The weighing valve (13) at the bottom of the metering pipe (4) weighs the material through the built-in sensor. When the appropriate mass is reached, the electric telescopic rod (8) starts to run and pushes down through the piston (11). The pressure in the metering pipe (4) increases until the weighing valve (13) overcomes the supporting force of the spring (17) and puts the raw material into the tank (1). Then the support top (18) contacts the weighing valve (13). After detecting the bottoming signal, the electric telescopic rod (8) stops pressing down and starts to reset, thus completing the metering function.

2. The compensating feeding mechanism for mixing materials in the production of automotive shock absorber foam according to claim 1, characterized in that, The bottom of the tank (1) is fixedly connected to a support plate (2), and there are six support plates (2) evenly arranged. The center of the bottom of the tank (1) is fixedly connected to a motor (16), and the output shaft above the motor (16) is fixedly connected to the stirring blade (15).

3. The compensating feeding mechanism for mixing materials in the production of automotive shock absorber foam according to claim 1, characterized in that, The inner wall of the tank (1) is fixedly connected to a baffle block (14), which is an arc-shaped structure and six baffle blocks (14) are evenly arranged.

4. The compensating feeding mechanism for mixing materials in the production of automotive shock absorber foam according to claim 1, characterized in that, The inner wall of the tank (1) is fixedly connected to a limiting plate (12). The upper part of the limiting plate (12) is fixedly connected to one end of a spring (17). The other end of the spring (17) is fixedly connected to a weighing valve (13). The weighing valve (13) has a built-in weighing sensor and a conical structure that matches the opening at the top of the tank (1). Round rods are provided on both sides of the weighing valve (13), and the weighing valve (13) is slidably connected to the limiting plate (12). The upper part of the tank (1) is connected to a metering tube (4).

5. The compensating feeding mechanism for mixing materials in the production of automotive shock absorber foam according to claim 1, characterized in that, The metering tube (4) is connected to six feed pipes (5) on its side. The feed pipes (5) are connected to an electronic valve (6) and a feed interface (7) on their top. The feed interface (7) adopts a flange structure. A fixing bracket (9) is fitted on the outside of the feed pipes (5). An ultrasonic metering sensor (10) is fixedly connected to the feed pipes (5) below the electronic valve (6). An electric telescopic rod (8) is fixedly connected to the top of the metering tube (4). The output end of the electric telescopic rod (8) is fixedly connected to the piston (11) below.

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