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Manufacturing method of polyurethane raw material Gravimetric blender device


source:[Gravimetric blender]   release time:2021-04-10 11:13:47




Patent name: Manufacturing method of polyurethane raw material Gravimetric blender device
Technical field:
The utility model relates to a raw material metering device on a polyurethane mixer.
Background technique:
When the polyurethane mixer is in foam production, the raw materials are first transported to the storage hopper on the polyurethane mixer through the screw feeder. The storage hopper is provided with a feed port and a discharge port, and the feed port and the screw The current raw material measurement method is to calculate the weight of the raw material conveyed by the screw feeder in the screw feeder by calculating the frequency conversion speed control motor in the screw feeder, so as to set the conversion and conversion of the frequency conversion speed control motor in the screw feeder. The corresponding operating time is used to control the weight of the raw materials in the storage hopper. Because of the error and strain of the raw materials, the products produced each time have color difference and the quality is unstable.
Contents of the utility model The purpose of the utility model is to provide a raw material Gravimetric blender device for a polyurethane blender with a simple metering method and accurate weighting. In order to achieve the above purpose, the technical solution adopted by the present utility model is a raw material Gravimetric blender device of a polyurethane mixer, which includes a storage hopper, and the storage hopper is provided with a feed inlet and a discharge port. The displacement is connected with one end of the load cell, the other end of the load cell is fixedly arranged on the fixed bracket, and the discharge port of the storage hopper is provided with a speed-regulating discharge valve. The advantage of the utility model is that a weighing sensor is installed on the storage hopper, which can directly weigh out the weight of the raw materials inside the storage hopper. The device has a simple structure and accurate measurement, which avoids color difference and unstable quality caused by errors in the addition of raw materials. And other phenomena.
The structure of the raw material Gravimetric blender device of the polyurethane blender of the utility model.
Detailed ways
Hereinafter, the utility model will be further described in detail in combination with preferred embodiments. The raw material Gravimetric blender device of the polyurethane mixer includes a storage hopper I, the storage hopper I is provided with a feed inlet 12 and a discharge port 11, and one end of the crushing and weighing sensor 2 of the storage hopper 1 Connected, the other end of the load cell 2 is fixedly arranged on the fixed bracket 3, and the discharge port 11 of the storage hopper 1 is provided with a speed-regulating discharge valve 4, which is on the subdivision of the storage hopper 1. An air hammer 5 is also provided. The working principle of the utility model is as follows. When used, the feed port 12 is connected with the screw feeder, the discharge port 11 is connected with the mixing cavity of the polyurethane mixer, and the screw feeder feeds the raw materials from the feed port 12 When the fixed value is delivered, the load cell I sends a signal to the electronic controller of the polyurethane mixer, and the electronic controller transmits the signal to the air hammer 5, which becomes the start of hitting the penetration of the storage hopper I and sends a signal to make The speed-regulating discharge valve 4 is opened, so that the raw materials are transported from the discharge port 11 to the mixing chamber of the polyurethane mixer. The impact of the air hammer 5 loosens the raw materials in the storage hopper I, making it easier to pass from the discharge port. 11 is discharged, the cutting-edge raw materials are difficult to stick to the inner wall of the storage hopper I, which better improves the accuracy of measurement.
The advantage of the utility model is that a weighing sensor 2 is set on the storage hopper I, which can directly weigh the weight of the raw materials inside the storage hopper I. The device is simple and accurate, and avoids the color difference and quality caused by the error of the raw material addition. The occurrence of abnormalities.
Claim 1. The raw material Gravimetric blender device of the polyurethane mixer, comprising a storage hopper, the storage hopper is provided with an inlet and an outlet, characterized in that the size of the storage hopper and the load cell One end is connected, the other end of the load cell is fixedly arranged on the fixed bracket, and the discharge port of the storage hopper is provided with a speed-regulating discharge valve.
2. The raw material Gravimetric blender device of the polyurethane mixer according to claim 1, characterized in that the size of the storage hopper is also provided with an air hammer.
Patent Abstract This utility model discloses a raw material Gravimetric blender device for a polyurethane blender, including a storage hopper. The storage hopper is provided with an inlet and an outlet, and the size and scale of the storage hopper One end of the load cell is connected, the other end of the load cell is fixedly arranged on the fixed bracket, and the discharge port of the storage hopper is provided with a speed-regulating discharge valve. A weighing sensor is installed on it, which can directly weigh out the weight of the raw materials inside the storage hopper. This device is simple and accurate, and avoids the occurrence of color difference and quality deviation caused by errors in the addition of raw materials.[Gravimetric blender]