An additive premixing device for automobile polyurethane foam production

Abstract

The utility model provides an additive premixing device for polyurethane foam cotton production of car, include: premixing subassembly, feed assembly and output assembly, the upper side surface of premixing subassembly is installed with the feed assembly for feeding, the downside surface of premixing subassembly is installed with the output assembly for discharging, premixing subassembly includes the mount for installing stirring drum, compared with prior art, the utility model has the beneficial effects as follows: through setting up feed assembly, when using, the additive that enters the feed cylinder can be preliminary broken by the broken shaft, for some solid additive that possibly exists caking or agglomeration, the broken shaft can scatter it, make it with more small, uniform granule state enter the inside of feed cylinder of premixing subassembly, like this help more fully mixes in premixing subassembly subsequently, improve the dispersion uniformity of additive in polyurethane foam cotton, thereby guarantee the consistency and stability of foam cotton performance.

Description

Technical Field

[0001] This utility model belongs to the field of mixing equipment, and specifically relates to an additive premixing device for the production of automotive polyurethane foam. Background Technology

[0002] The premixing device for additives used in automotive polyurethane foam production is a piece of equipment used to premix various additives required in the production process of automotive polyurethane foam, thereby improving production efficiency and product quality. Currently, the premixing device for additives used in automotive polyurethane foam production faces a significant clumping problem when dealing with solid additives, which affects the subsequent premixing effect. Due to their hygroscopic nature, solid additives easily absorb moisture from the environment during storage and transportation, causing particles to stick together and clump. A common solution is to improve the humidity during storage, such as using dehumidifiers to reduce warehouse humidity. However, this method has significant drawbacks. On the one hand, dehumidifiers consume a lot of energy, increasing production costs; on the other hand, even with strict humidity control, additives may still absorb moisture and clump again during the transfer to the production workshop due to brief exposure to high-humidity air. Another approach is to prevent clumping by optimizing the additive formulation and adding anti-caking agents. However, this may not only change the original chemical properties of the additives and affect their effectiveness in polyurethane foam, but also make it difficult to precisely control the amount of anti-caking agent added. Too little anti-caking agent will not effectively prevent clumping, while too much will introduce new impurities and interfere with the stability of the premixed system. Therefore, a new structure is needed to solve the above technical problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an additive premixing device for the production of automotive polyurethane foam, so as to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a premixing device for additives in the production of automotive polyurethane foam, comprising: a premixing component, a feeding component, and an output component. The upper surface of the premixing component is equipped with a feeding component for feeding, and the lower surface of the premixing component is equipped with an output component for discharging. The premixing component includes a mounting frame for mounting a mixing drum, and a drive motor for driving the output component is mounted at the bottom of the mounting frame. The upper surface of the mixing drum is equipped with a feeding component, and the feeding component includes a feeding element and a feeding port.

[0005] In a preferred embodiment, a stirring drum is mounted on the upper surface of the mounting bracket, and a stirring element is rotatably mounted inside the stirring drum. The stirring shaft of the stirring element passes through the right side surface of the stirring drum and is connected to the output motor. A feed inlet is provided on the right edge of the upper surface of the stirring drum.

[0006] In a preferred embodiment, the feeding component includes a feeding cylinder and a crushing shaft. The feeding cylinder is installed on the left edge of the upper surface of the mixing cylinder, and a trapezoidal opening is formed on the upper surface of the feeding cylinder.

[0007] In a preferred embodiment, a crushing shaft is rotatably mounted inside the feed cylinder, with the right end of the crushing shaft penetrating the surface of the feed cylinder, and the crushing shaft is connected to the output motor via a transmission belt.

[0008] In a preferred embodiment, the output component includes a discharge pipe and an auger output component. The discharge pipe is installed on the right edge of the lower surface of the mixing drum, and a discharge valve is provided at the connection between the discharge pipe and the mixing drum.

[0009] In a preferred embodiment, the right side surface of the auger output component is designed to be open, a tapered opening is provided on the upper side of the outer side surface of the auger output component, and a drive wheel is installed on the left side surface of the auger output component.

[0010] In a preferred embodiment, the drive wheel is connected to the output shaft of the drive motor via a transmission belt, and the discharge port of the discharge pipe is aligned with the conical opening.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are as follows: 1. By setting a feeding component, the upper surface of the premix component is equipped with a feeding component for feeding. The feeding component includes a feeding part and a feeding port. The feeding part includes a feeding cylinder and a crushing shaft. When in use, the crushing shaft can initially crush the additives entering the feeding cylinder. For some solid additives that may have agglomeration or clumping, the crushing shaft can break them up so that they enter the feeding cylinder of the premix component in a finer and more uniform particle state. This helps to mix more fully in the premix component in the future, improves the dispersion uniformity of the additives in the polyurethane foam, and thus ensures the consistency and stability of the foam performance.

[0012] 2. By setting an output component, an output component for discharging material is installed on the lower surface of the premix component. The output component includes a discharge pipe and an auger output component. During use, the rotation speed of the auger output component has a clear correspondence with the discharge volume. By adjusting the rotation speed of the auger, the discharge volume of additives per unit time can be precisely controlled, ensuring that the premixed additives are accurately delivered to the next process according to the requirements of the production process, which helps to improve the stability and consistency of product quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of a premixing device for additives used in the production of automotive polyurethane foam, according to this utility model.

[0015] Figure 2 This is a schematic diagram of the feeding component of an additive premixing device for the production of automotive polyurethane foam according to this utility model.

[0016] Figure 3 This is a schematic diagram of the side structure of a premixing device for additives used in the production of automotive polyurethane foam, according to this utility model.

[0017] In the diagram, 100 represents the mounting bracket, and 110 represents the drive motor.

[0018] 200-Agitator drum, 210-Feed inlet, 220-Feed drum, 230-Trapezoidal opening, 240-Crushing shaft, 250-Agitator shaft;

[0019] 300 - Screwdriver output component, 310 - Discharge pipe, 320 - Drive wheel. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 3 This utility model provides a technical solution: a premixing device for additives used in the production of automotive polyurethane foam, comprising: a premixing component, a feeding component, and an output component. The upper surface of the premixing component is equipped with a feeding component for feeding, and the lower surface of the premixing component is equipped with an output component for discharging. The premixing component includes a mounting bracket 100 for mounting a mixing drum 200, and a drive motor 110 for driving the output component is mounted at the bottom of the mounting bracket 100. The upper surface of the mixing drum 200 is equipped with a feeding component, which includes a feeding element and a feeding port 210.

[0022] Please see Figures 1 to 3As the first embodiment of this utility model: a stirring drum 200 is installed on the upper surface of the mounting bracket 100, a stirring component is rotatably installed inside the stirring drum 200, the stirring shaft 250 of the stirring component passes through the right side surface of the stirring drum 200 and is connected to the output motor, and a feed inlet 210 is opened on the right edge of the upper surface of the stirring drum 200.

[0023] The feeding components include a feeding cylinder 220 and a crushing shaft 240. The feeding cylinder 220 is installed on the left edge of the upper surface of the mixing cylinder 200, and a trapezoidal opening 230 is opened on the upper surface of the feeding cylinder 220.

[0024] A crushing shaft 240 is rotatably mounted inside the feed cylinder 220. The right end of the crushing shaft 240 penetrates the surface of the feed cylinder 220. The crushing shaft 240 is connected to the output motor via a transmission belt.

[0025] When using the additives, the user should first prepare the additives to be mixed (the quantity and amount of additives should be selected and adjusted according to the actual situation, which will not be elaborated here). After preparation, the user can pour the liquid additives into the feed inlet 210 on the upper surface of the mixing drum 200. After pouring in the liquid additives, the user can prepare a cover plate to cover the feed inlet 210 to prevent impurities from entering the mixing drum 200. Similarly, the trapezoidal opening 230 also needs to be closed after addition. Before adding the solid additives through the trapezoidal opening 230, the user can start the output motor outside the mixing shaft 250, so that the output shaft of the output motor drives the mixing shaft 250 and the crushing shaft 240 to rotate through the transmission belt (the rotation direction of the crushing shaft 240 is towards the lower surface of the feed drum 220). The opening of the feed cylinder 220 is designed to prevent solid additives from being thrown out of the trapezoidal opening 230 when the crushing shaft 240 rotates. After the fixed additives enter through the trapezoidal opening 230, the rotating crushing shaft 240 can perform a preliminary crushing process on the solid additives, allowing them to enter the mixing drum 200 in smaller pieces and then be stirred by the mixing shaft 250. The crushing shaft 240 can perform preliminary crushing on the additives entering the feed cylinder 220. For some solid additives that may be agglomerated or clustered, the crushing shaft 240 can break them up, allowing them to enter the feed cylinder 220 of the premix component in a finer and more uniform particle state. This helps to mix more fully in the premix component, improves the dispersion uniformity of the additives in the polyurethane foam, and thus ensures the consistency and stability of the foam performance.

[0026] Please see Figures 1 to 3 As a second embodiment of the present invention: the output component includes a discharge pipe 310 and an auger output component 300. The discharge pipe 310 is installed on the right edge of the lower surface of the mixing drum 200, and a discharge valve is provided at the connection between the discharge pipe 310 and the mixing drum 200.

[0027] The right side surface of the auger output component 300 is designed with an opening, and a tapered opening is provided on the upper side of the outer side surface of the auger output component 300. A drive wheel 320 is installed on the left side surface of the auger output component 300.

[0028] The drive wheel 320 is connected to the output shaft of the drive motor 110 via a transmission belt, and the discharge port of the discharge pipe 310 is aligned with the conical opening;

[0029] During use, after the mixing is completed according to the operation steps of the first embodiment, the user can open the discharge valve between the discharge pipe 310 and the mixing drum 200, allowing the material inside the mixing drum 200 to enter the discharge pipe 310. Before the material in the discharge pipe 310 enters the conical opening through the discharge port, the user can start the drive motor 110, causing the drive motor 110 to drive the drive wheel 320 to rotate via the drive belt, thereby driving the auger output component 300 to rotate, causing the auger inside the auger output component 300 to work (auger output component 300 is prior art). (The specific connection principle and working principle are not described here.) When the material in the discharge pipe 310 enters the conical opening through the discharge port, the material will be output through the auger output component 300 and then conveyed to the opening on the right side surface of the auger output component 300. Since the rotation speed of the auger output component 300 has a clear correspondence with the discharge volume, by adjusting the rotation speed of the auger, the amount of additive discharged per unit time can be precisely controlled, ensuring that the premixed additive is accurately conveyed to the next process according to the requirements of the production process, which helps to improve the stability and consistency of product quality.

[0030] The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.

Claims

1. A premixing device for additives used in the production of automotive polyurethane foam, comprising: A premixing component, a feeding component, and an output component, characterized in that a feeding component for feeding is mounted on the upper surface of the premixing component, an output component for discharging is mounted on the lower surface of the premixing component, the premixing component includes a mounting bracket (100) for mounting a mixing drum (200), a drive motor (110) for driving the output component is mounted on the bottom of the mounting bracket (100), and a feeding component is mounted on the upper surface of the mixing drum (200), the feeding component including a feeding element and a feeding port (210). A stirring drum (200) is mounted on the upper surface of the mounting bracket (100). A stirring component is rotatably mounted inside the stirring drum (200). The stirring shaft (250) of the stirring component passes through the right side surface of the stirring drum (200) and is connected to the output motor. A feed inlet (210) is provided on the right edge of the upper surface of the stirring drum (200). The feeding component includes a feeding cylinder (220) and a crushing shaft (240). The feeding cylinder (220) is installed on the left edge of the upper surface of the mixing cylinder (200), and a trapezoidal opening (230) is opened on the upper surface of the feeding cylinder (220). The output component includes a discharge pipe (310) and an auger output component (300). The discharge pipe (310) is installed on the right edge of the lower surface of the mixing drum (200), and a discharge valve is provided at the connection between the discharge pipe (310) and the mixing drum (200).

2. The additive premixing device for automotive polyurethane foam production as described in claim 1, characterized in that: The crushing shaft (240) is rotatably mounted inside the feed cylinder (220). The right end of the crushing shaft (240) penetrates the surface of the feed cylinder (220). The crushing shaft (240) is connected to the output motor via a transmission belt.

3. The additive premixing device for automotive polyurethane foam production as described in claim 2, characterized in that: The right side surface of the auger output component (300) is designed with an opening, and a tapered opening is provided on the upper side of the outer side surface of the auger output component (300). A drive wheel (320) is installed on the left side surface of the auger output component (300).

4. The additive premixing device for automotive polyurethane foam production as described in claim 3, characterized in that: The drive wheel (320) is connected to the output shaft of the drive motor (110) via a transmission belt, and the discharge port of the discharge pipe (310) is aligned with the conical opening.

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