Online automatic weighing device for stock bin of extruder

Abstract

The utility model discloses an on-line automatic weighing device for stock bins of an extruder, and belongs to the technical field of hoisting equipment, the on-line automatic weighing device comprises upper stock bins and a main stock bin which are communicated with each other, electromagnetic valves are arranged at the joints of the upper stock bins and the main stock bin, the main stock bin is provided with a plurality of the upper stock bins, and the bearing plate is installed at the bottom of the main stock bin and used for loading weighing sensors. The weighing sensor is electrically connected with the PLC, a rubber pad is installed on the conical wall of the feeding bin through a bolt, a vibration motor is fixed to the feeding bin to act on the rubber pad, a cone fixed through a connecting rod is installed at the joint of the feeding bin and the main bin, the connecting rod is connected with a fixing ring, cylindrical holes are formed in the circumferential direction of the fixing ring, and the cylindrical holes are communicated with the conical wall of the feeding bin. A spring is placed in the cylindrical hole, one end of the spring is fixed to the cylindrical hole, the other end of the spring is connected with a floating rod, the floating rod is connected with the cone, the technical problems that feeding of a stock bin is not accurate and the operation load of a material pumping machine is high are solved, and the feeding device is mainly applied to feeding of extruders.

Description

Technical Field

[0001] The invention belongs to the technical field of feeding equipment, and in particular relates to an online automatic weighing device for an extruder silo. Background Art

[0002] During the production process of EVA / EPE / POE film, the raw material particles are transported to the silo by the pumping machine, and the weight of the raw materials in the silo is estimated manually. The manual weight estimation has low accuracy, and the continuous operation of the pumping machine leads to high energy consumption. In view of this, we have developed an automatic weighing system. This system includes a load-bearing device, a weighing sensor and a base plate. The weighing sensor is connected to the PLC, which can monitor the remaining material in the silo in real time, and realize automatic material extraction by setting the upper and lower limits of the silo weight. This utility model can reduce the running time of the pumping machine, reduce energy consumption, improve production safety and production efficiency, and reduce human resource investment. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide an online automatic weighing device for an extruder silo to solve the technical problems of inaccurate silo feeding and high operating load of the pumping machine.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: an online automatic weighing device for an extruder silo, comprising an upper silo and a main silo that are interconnected, a solenoid valve is passed at the connection between the upper silo and the main silo, the main silo is configured with a plurality of the upper silos connected, and;

[0005] A load-bearing plate installed at the bottom of the main silo for loading a load cell;

[0006] PLC controller, the weighing sensor is electrically connected to the PLC controller;

[0007] A bottom plate is used to fix the weighing sensor.

[0008] Furthermore: a rubber pad is installed on the conical wall of the loading bin by bolts, and a vibration motor is fixed to the loading bin to work on the rubber pad.

[0009] Further: a vertebral body fixed by a connecting rod is installed at the connection between the upper silo and the main silo;

[0010] The connecting rod is connected to the fixing ring, a cylindrical hole is opened along the circumference of the fixing ring, a spring is placed in the cylindrical hole, one end of the spring is fixed to the cylindrical hole, and the other end is connected to the floating rod, and the floating rod is connected to the vertebral body.

[0011] Compared with the prior art, the present invention has the following advantages: by adding a weighing sensor, the upper material bin and the main material bin can be weighed in real time, and the weighing sensor transmits the measured data to the PLC control for display, thereby ensuring the weight of the remaining material in the main material bin and the upper material bin, achieving precise control of material unloading, and reducing the operating load of the feed pump, and has good applicability and popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 This utility model Figure 1 Partial cross-sectional view at point A. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] In the description of the invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0016] In the first embodiment of the present utility model, Figure 1 As shown, it includes an upper material bin 1 and a main material bin 2 which are interconnected, and the upper material bin 1 and the main material bin 2 are connected at the connection point through a solenoid valve 3, and;

[0017] A load-bearing plate 4 installed at the bottom of the main silo 2 for loading a weighing sensor 5;

[0018] PLC controller 7, the weighing sensor 5 is electrically connected to the PLC controller 7;

[0019] A bottom plate 6 is used to fix the weighing sensor 5 .

[0020] By adopting the above technical solution, the implementation method of this solution is that it is difficult to ensure the accuracy of feeding and dosage by using a pumping machine to feed the extruder silo, and it is necessary to manually detect the remaining material in the silo, which leads to safety hazards for the staff during the inspection, and the pumping machine needs to run continuously;

[0021] By installing more than two loading bins 1 on the main bin 2 that feeds the extruder, and using a pumping machine to feed multiple pumping machines 1, the weighing sensor 5 transmits the measured data and displays it on the PLC control 7, ensuring the weight of the remaining material in the main bin 2 and the loading bin 1, achieving accurate control of material discharge, and reducing the operating load of the pumping machine.

[0022] In the second embodiment of the present invention, Figure 1 As shown, the main material bin 2 is equipped with a plurality of the upper material bins 1;

[0023] In the third embodiment of the present utility model, as Figure 1 As shown, a rubber pad 8 is installed on the conical wall of the loading bin 1 by bolts, and a vibration motor 9 is fixed to the loading bin 1 to perform work on the rubber pad 8 .

[0024] By adopting the above technical solution, the implementation method of this solution is that since multiple loading bins 1 are equipped, the raw materials are accumulated in the loading bin 1, so when the solenoid valve 3 is opened, there is a wall hanging phenomenon in the process of raw material unloading;

[0025] By installing a vibration motor 9 on the wall of the upper material bin 1, the upper material bin 1 is operated, so that the raw materials on the wall of the upper material bin 1 fall down.

[0026] In the third embodiment of the present utility model, as Figure 2 As shown, a vertebral body 11 fixed by a connecting rod 10 is installed at the connection between the upper silo 1 and the main silo 2.

[0027] The connecting rod 10 is connected to a fixing ring 12 , a cylindrical hole 13 is opened along the circumference of the fixing ring 12 , a spring 14 is placed in the cylindrical hole 13 , one end of the spring 14 is fixed to the cylindrical hole 13 , and the other end is connected to a floating rod 15 , and the floating rod 15 is connected to the vertebral body 11 .

[0028] By adopting the above technical solution, the implementation method of this solution is that since multiple loading bins 1 are equipped, the raw materials are accumulated in the loading bin 1, so when the solenoid valve 3 is opened, there is a "mouse-empty" phenomenon in the raw material unloading process;

[0029] By installing a cone 11 in the upper bin 1, the raw materials fall from both sides of the cone 11. As the materials fall, the middle of the raw materials in the upper bin 1 may be hollowed out. At this time, the cone is not subjected to force, and the spring 14 bounces up to break the hollowed-out materials, thereby causing the materials to fall.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention. These improvements should also be regarded as within the protection scope of the present invention.

Claims

1. An online automatic weighing device for extruder silo, characterized in that: It comprises a feeding bin (1) and a main feeding bin (2) which are interconnected, and the feeding bin (1) and the main feeding bin (2) are connected at the connection point through an electromagnetic valve (3), and; A load-bearing plate (4), installed at the bottom of the main silo (2) and used for loading a weighing sensor (5); A PLC controller (7), wherein the weighing sensor (5) is electrically connected to the PLC controller (7); A bottom plate (6) is used to fix the weighing sensor (5).

2. The online automatic weighing device for extruder silo according to claim 1, characterized in that: A rubber pad (8) is installed on the conical wall of the loading bin (1) by means of bolts, and a vibration motor (9) is fixed to the loading bin (1) to perform work on the rubber pad (8).

3. The online automatic weighing device for extruder silo according to claim 1, characterized in that: A vertebral body (11) fixed by a connecting rod (10) is installed at the connection between the upper material bin (1) and the main material bin (2).

4. The online automatic weighing device for extruder silo according to claim 3 is characterized in that: The connecting rod (10) is connected to a fixing ring (12), a cylindrical hole (13) is provided along the circumference of the fixing ring (12), a spring (14) is placed in the cylindrical hole (13), one end of the spring (14) is fixed to the cylindrical hole (13), and the other end is connected to a floating rod (15), and the floating rod (15) is connected to the vertebral body (11).

5. The online automatic weighing device for extruder silo according to claim 3, characterized in that: The main material bin (2) is equipped with a plurality of the upper material bins (1).

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