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Manufacturing method of separate weighing and mixing system


source:[Gravimetric blender]   release time:2021-03-19 11:59:59




Manufacturing method of separate weighing and mixing system
[Patent Abstract] The present invention discloses a separate weighing and mixing system, including a formula storage hopper (1), a weight sensor (2), a weighing chamber (3), a stirring chamber (4), and a stirring blade (5). ), characterized in that: a weighing chamber (3) is connected below the formula storage hopper (1), a weight sensor (2) is arranged inside the weighing chamber (3), and the weighing chamber (3) is below A stirring chamber (4) is connected, and a stirring paddle (5) is arranged inside the stirring chamber (4). The invention improves the accuracy of the actual ratio, especially for products with complicated formulas and large disparity in ratio. The cumulative error of the batch is within five thousandths of the theoretical value, which meets the product quality requirements and does not It will cause artificial shutdown due to incorrect ratio.
[Patent Description] A separate weighing and mixing system
【Technical Field】
[0001] The present invention relates to a separate weighing and mixing system.
【Background technique】
[0002] PC film has good molding properties and can be made into products with various thickness specifications of 0.05 to 0.5 m. Because of its good light transmittance and good dyeability, it is often used to manufacture various colored products. In addition, PC is also a very good modified substrate. By adding various additives for blending, more excellent properties such as flame retardancy and toughness can be achieved.
[0003] The above masterbatch or additives and PC particles are generally processed by a weighing mixer. The current accuracy of the weighing mixer is five thousandths. In terms of accuracy, it can meet the material ratio requirements. , But its weighing is a stacking weighing method. If you need 1000g of PC particles and 5g of masterbatch, the system will accumulate the masterbatch for weighing on the basis of weighing 1000g PC particles, and then cut the material together. When the proportioning requirements are very high, or there are many materials in the formula, and the weight disparity is large, the actual proportion of the formula often differs from the theoretical value due to the large cumulative error, which cannot meet the product quality requirements.Manufacturing method of separate weighing and mixing system
[0004] In addition, when there is a large difference in the proportions, due to the recognition accuracy of system errors, materials with small proportions often experience inaccurate or even unloading conditions, requiring shutdown and adjustment, which seriously affects production.
[0005] The technical problem to be solved by the present invention is to provide a method that improves the accuracy of the actual ratio, especially for products with complicated formulas and large disparity in ratio, and the difference between the cumulative error of the batch and the theoretical value is 1000 Separated weighing and mixing system that meets product quality requirements and does not cause artificial shutdown due to incorrect proportioning within five quarters.
[0006] In order to solve the above technical problems, the present invention provides a separate weighing and mixing system, including a formula storage hopper, a weight sensor, a weighing chamber, a stirring chamber, and a stirring blade, characterized in that: the formula storage hopper A weighing chamber is connected below, a weight sensor is arranged inside the weighing chamber, a stirring chamber is connected below the weighing chamber, and a stirring blade is arranged inside the stirring chamber.
[0007] Further, there are two formula storage hoppers.
[0008] Furthermore, the formula storage hopper is made of stainless steel.
[0009] Compared with the prior art, the beneficial effects of the present invention are:
The invention improves the accuracy of the actual ratio, especially for products with complicated formulas and large disparity in ratio. The cumulative error of the batch is within five thousandths of the theoretical value, which meets the product quality requirements and does not It will cause artificial shutdown due to incorrect ratio.
I a formula storage hopper, 2-weight sensor, 3 a weighing room, 4 mixing room, 5-mixing prize leaf. 【detailed description】
[0012] The present invention will be described in further detail below in conjunction with the drawings and [specific embodiments]:
As shown in Figure 1, a separate weighing and mixing system includes a formula storage hopper 1, a weight sensor 2, a weighing chamber 3, a mixing chamber 4, and a mixing blade 5. A weighing system is connected below the formula storage hopper I The weighing chamber 3 is provided with a weight sensor 2 inside the weighing chamber 3, a stirring chamber 4 is connected below the weighing chamber 3, a stirring paddle 5 is provided inside the stirring chamber 4, and the formula storage hopper 1 has Two, the formula storage hopper I is made of stainless steel.
[0013] At work: the two formula storage hoppers 1 are operated separately, and the feeding amount is controlled through the metering valve of the feeding port, and the feeding is sequentially fed into the weighing chamber 3, and the weight of the material is checked by the weight sensor 2. After checking, the feed valve of the weighing chamber is opened to enter the mixing chamber 4. When all the materials of the formula enter the mixing chamber one by one, the mixing blade 5 starts to mechanically mix the formula to achieve the purpose of uniform mixing.
[0014] Because the hopper discharge meter valve and the weight sensor belong to a closed loop system. When adjusting the machine, the weight sensor will feed back the weighing information to the control system, and operate the metering valve to adjust the size of the blanking amount or the blanking time, which plays a positive role in the weight of the material when working.
[0015] Also, because the formula materials adopt separate blanking and do not interfere with each other, each blanking can be guaranteed within the weighing error of the machine, the cumulative error is small, and it will not cause the weighing induction error, and the shutdown phenomenon caused by it.
[0016] In summary, the present invention improves the accuracy of the actual ratio, especially for products with complex formulas and large disparity in ratios. The cumulative error of the batch is within five thousandths of the theoretical value. , To meet product quality requirements, and will not cause artificial shutdown due to incorrect ratio.
[0017] The above are only preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to the above embodiments, but all equivalent modifications or changes made by those of ordinary skill in the art based on the disclosure of the present invention, All should be included in the scope of protection recorded in the claims.
【Rights request】
1. A separate weighing and mixing system, comprising a formula storage hopper (I), a weight sensor (2), a weighing chamber (3), a stirring chamber (4), and a stirring blade (5), characterized in that: A weighing chamber (3) is connected below the formula storage hopper (1), a weight sensor (2) is arranged inside the weighing chamber (3), and a stirring chamber (4) is connected below the weighing chamber (3) ), a stirring paddle (5) is arranged inside the stirring chamber (4).
2. A separate weighing and mixing system according to claim 1, characterized in that: there are two formula storage hoppers (I).
3. A separate weighing and mixing system according to claim 1, wherein the formula storage hopper (I) is made of stainless steel.[Gravimetric blender]