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Weighing type Gravimetric blender


source:[Gravimetric blender]   release time:2021-05-07 11:54:33




Manufacturing method of discharging mechanism of color masterbatch 
Gravimetric blender
The technical field of the design of Gravimetric blender equipment for injection molding machines, in particular, relates to a Gravimetric blender machine.

Background technique: Gravimetric blender,Weighing type Gravimetric blender

In the prior art, the operation of the Gravimetric blender on the market is mainly through manual weighing, and then after it is weighed according to the weighing ratio, it is poured into the Gravimetric blender for mixing, so that employees need to consume physical strength and a lot of time, and when they encounter factors such as asking for leave, It is also necessary to dispatch manpower in time, and can not continue to provide the injection molding machine with a good ratio of raw materials.

Technical realization elements:

The purpose of the utility model is to overcome the shortcomings of the prior art and provide a weighing Gravimetric blender that can automatically feed materials. The top raw material hopper adopts a plug type discharge, and the size of the plug can be changed according to the ratio and accuracy of the raw materials. And adopts the algorithm of multiple collection average value to ensure the accuracy of raw material rough and fine compensation.

In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is: a weighing Gravimetric blender, including a frame and a mixing hopper installed on the frame, and a weighing hopper is installed on the mixing hopper, and a weighing hopper is installed on the mixing hopper. A weighing sensor is installed between the hopper and the mixing hopper. The upper part of the weighing hopper is connected to the raw material hopper. The raw material hopper and the weighing hopper are connected and closed by a plug. The plug is connected to the first cylinder, and the first cylinder is installed on the raw material. In the hopper.

The above-mentioned mixing hopper is connected to a storage hopper, and the storage hopper is equipped with an anti-rotation level gauge.

The mixing hopper described above is equipped with mixing blades, and the mixing blades are fixedly installed on the mixing shaft.

The stirring shaft as described above is connected to the rotating shaft of the stirring motor.

Solenoid valve switches are installed at the discharge ports of the weighing hopper and the mixing hopper as described above.

The side wall of the weighing hopper described above is equipped with a second air cylinder, and the side wall of the mixing hopper is equipped with a third air cylinder, and both the second air cylinder and the third air cylinder are connected to the vibrating plate.

At least one sub-hopper is provided in the raw material hopper as described above, and the plug and the first cylinder are installed in the sub-hopper.

A window is opened on the storage hopper as described above.

The first cylinder, the second cylinder, the third cylinder, the load cell, the anti-rotation level gauge and the stirring motor as described above are all connected through the controller and its built-in system.

Compared with the prior art, the beneficial effect of the utility model is: the anti-rotation level meter in the device automatically detects the material level, judges whether the material is lacking, and then performs the operation of discharging, weighing and mixing, and adopts a circular plug Clogging, rough and fine compensation, coarse compensation feed is determined according to time, and fine feed is fed through the instantaneous jitter of the plug, with high accuracy. The size of the plug can be changed according to the ratio of raw materials and the accuracy. The system uses multiple times The average value algorithm is collected to ensure the accuracy of coarse and fine compensation.

Gravimetric blender,Weighing type Gravimetric blender
Weighing type Gravimetric blender
Schematic diagram description: 1. Raw material hopper; 2. First cylinder; 3. Plug; 4. Load cell; 5. Stirring motor; 6. Frame; 7. Rotation resistance level gauge; 8. Storage hopper; 9. . Mixing blade; 10. Weighing hopper; 11. Second cylinder; 12. Window; 13. Third cylinder; 14. Mixing hopper; 15. Dividing hopper.

Detailed ways

The following detailed description will be given in conjunction with the embodiments with reference to the accompanying drawings in order to give a more in-depth interpretation of the technical features and advantages of the present invention.

As shown in Figures 1-4, a weighing Gravimetric blender of the present invention includes a frame 6 and a mixing hopper 14 installed on the frame 6, and a weighing hopper 10 is installed on the mixing hopper 14 , A weighing sensor 4 is arranged between the weighing hopper 10 and the mixing hopper 14, and the weighing sensor 4 detects the weight in real time. The upper part of the weighing hopper 10 is connected to the raw material hopper 1, and the raw material hopper 1 and the weighing hopper 10 pass through a plug 3 To realize communication and closing, the plug 3 is connected with the first cylinder 2, and the first cylinder 2 is installed in the raw material hopper 1.

Further, the mixing hopper 14 is connected to a storage hopper 8. The storage hopper 8 is equipped with an anti-rotation level gauge 7 to automatically detect the material level. The mixing hopper 14 is equipped with a mixing blade 9 and the mixing blade 9 is fixed. Installed on the mixing shaft, the mixing shaft is connected to the rotating shaft of the mixing motor 5, the weighing hopper 10 and the mixing hopper 14 are equipped with solenoid valve switches at the discharge port to open the discharge port or Close the feed opening.

Further, the side wall of the weighing hopper 10 is equipped with a second cylinder 11, and the side wall of the mixing hopper 14 is equipped with a third cylinder 13, and both the second cylinder 11 and the third cylinder 13 are connected to the vibrating plate. Vibration assists the feeding to prevent materials from accumulating in the hopper or bridging.

Further, the raw material hopper 1 is provided with at least one sub-hopper 15 in which a plug 3 and a first cylinder 2 are installed, and the storage hopper 8 is provided with a window 12 for visual observation of the material level.

Further, the first cylinder 2, the second cylinder 11, the third cylinder 13, the weighing sensor 4, the anti-rotation level gauge 7 and the stirring motor 5 are all connected through the controller and its built-in software system. The controller Generally, a single-chip microcomputer is selected and read in through its built-in program and related parameter settings. The functions realized are as follows: it can judge the level of the material, control the switch of the solenoid valve, and control the work of the first cylinder 2, combined with the load cell 4. Calculate the amount of blanking of the plug 3 in a single time.

The round plug 3 is used to block the material, and the appropriate plug 3 can be replaced according to the size of the proportion. The controller system divides the blanking into rough and fine compensation. The first ten cycles of rough compensation will automatically collect and drop. The amount of material is calculated by the average value to determine the rough compensation time. The precision compensation depends on the instantaneous jitter of the plug 3, and the accuracy can reach 2-5g (depending on the size of the plug 3).

The working principle of the device of the utility model is as shown in Fig. 1-3, the raw material hopper 1 has 4 sub-hoppers 15 in total, and each sub-hopper 15 is provided with a first cylinder 2 and a plug 3, according to the set ratio Turn on the first cylinder 2 in turn and discharge the material to the weighing hopper 10. After the weighing is completed, the weighing hopper 10 opens the second cylinder 11 and discharges the material to the mixing hopper 14. After stirring by the mixing blade 9, open the mixing hopper 14 and discharge the material To the storage hopper 8, the controller system will determine whether to continue the next cycle according to the detection of the anti-rotation level gauge 7. If the storage hopper 8 is short of material, it will automatically run the program to discharge, weigh and mix, and vice versa, When the storage hopper 8 has material, it will wait for the injection molding machine to use it to achieve self-energy supply.

In the device of the utility model, each cylinder, the weighing sensor 4, the stirring motor 5, the anti-rotation level gauge 7, the controller and its software system and other components are all existing technology or materials. Models and specifications can be purchased directly from the market or customized.

The present utility model is described clearly and completely through the technical solutions in the above embodiments, and it is obvious that the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.[Gravimetric blender]